See MS-ERREf 2.3.1 STATUS_BIOS_FAILED_TO_CONNECT_INTERRUPT.
Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
Huiwen He [Wed, 21 Jan 2026 11:48:59 +0000 (19:48 +0800)]
smb/client: add NT_STATUS_VARIABLE_NOT_FOUND
See MS-ERREf 2.3.1 STATUS_VARIABLE_NOT_FOUND.
Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
Huiwen He [Wed, 21 Jan 2026 11:48:58 +0000 (19:48 +0800)]
smb/client: rename ERRinvlevel to ERRunknownlevel
See MS-CIFS 2.2.2.4 ERRunknownlevel. Keep the name consistent with the
documentation.
Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
Huiwen He [Wed, 21 Jan 2026 11:48:57 +0000 (19:48 +0800)]
smb/client: add NT_STATUS_OS2_INVALID_LEVEL
See MS-CIFS 2.2.2.4 STATUS_OS2_INVALID_LEVEL.
Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
Huiwen He [Wed, 21 Jan 2026 11:48:56 +0000 (19:48 +0800)]
smb/client: map NT_STATUS_INVALID_INFO_CLASS to ERRbadpipe
See MS-CIFS 2.2.2.4 STATUS_INVALID_INFO_CLASS.
Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Sun, 18 Jan 2026 09:13:13 +0000 (17:13 +0800)]
smb/client: introduce KUnit test to check search result of smb2_error_map_table
The KUnit test are executed when cifs.ko is loaded.
Just like `fs/ext4/mballoc.c` includes `fs/ext4/mballoc-test.c`.
`smb2maperror.c` also includes `smb2maperror_test.c`, allowing KUnit
tests to access any functions and variables in `smb2maperror.c`.
The maperror_test_check_search() checks whether all elements can be
correctly found in the array.
Suggested-by: David Howells <dhowells@redhat.com> Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
ChenXiaoSong [Tue, 23 Dec 2025 09:24:40 +0000 (17:24 +0800)]
smb/client: use bsearch() to find target in smb2_error_map_table
The smb2_error_map_table array currently has 1740 elements. When searching
for the last element, the original loop-based search method requires 1740
comparisons, while binary search algorithm requires only 10 comparisons.
ChenXiaoSong [Wed, 24 Dec 2025 01:33:28 +0000 (09:33 +0800)]
smb/client: check whether smb2_error_map_table is sorted in ascending order
Although the array is sorted at build time, verify the ordering again
when cifs.ko is loaded to avoid potential regressions introduced by
future script changes.
David Howells [Tue, 23 Dec 2025 00:05:34 +0000 (00:05 +0000)]
cifs: Autogenerate SMB2 error mapping table
Autogenerate the SMB2 status to error code mapping table, from the
smb2status.h common header, sorting it by NT status code so that it can be
searched by binary chopping. This also reduces the number of places this
list is duplicated in the source.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <stfrench@microsoft.com>
cc: ChenXiaoSong <chenxiaosong@kylinos.cn>
cc: linux-cifs@vger.kernel.org Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Reviewed-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/linux-cifs/20260106071507.1420900-3-chenxiaosong.chenxiaosong@linux.dev/ Signed-off-by: Steve French <stfrench@microsoft.com>
open FILE, ">fs/smb/common/smb2status.h" || die;
print FILE @output;
close FILE || die;
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <stfrench@microsoft.com>
cc: ChenXiaoSong <chenxiaosong@kylinos.cn>
cc: linux-cifs@vger.kernel.org Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Reviewed-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/linux-cifs/20260106071507.1420900-2-chenxiaosong.chenxiaosong@linux.dev/ Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 21:23:56 +0000 (21:23 +0000)]
cifs: SMB1 split: Make BCC accessors conditional
Make the BCC accessor functions conditional.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 17:41:38 +0000 (17:41 +0000)]
cifs: SMB1 split: connect.c
Split SMB1-specific connection management stuff to smb1ops.c and move
CIFSTCon() to cifssmb.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 16:14:36 +0000 (16:14 +0000)]
cifs: SMB1 split: sess.c
Split SMB1-specific session setup stuff into smb1session.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:34:08 +0000 (15:34 +0000)]
cifs: SMB1 split: cifsencrypt.c
Split SMB1-specific message signing into smb1encrypt.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:25:59 +0000 (15:25 +0000)]
cifs: SMB1 split: netmisc.c
Split a variety of bits from netmisc.c into other places, notably the error
table into smb1maperror.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:22:19 +0000 (15:22 +0000)]
cifs: SMB1 split: misc.c
Split SMB1 bits from misc.c to smb1misc.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 12:53:23 +0000 (12:53 +0000)]
cifs: SMB1 split: cifs_debug.c
Split SMB1 bits from cifs_debug.c to smb1debug.c.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:14:22 +0000 (15:14 +0000)]
cifs: SMB1 split: Move inline funcs
Move some SMB1-specific inline funcs to smb1proto.h.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:44:07 +0000 (15:44 +0000)]
cifs: Fix cifs_dump_mids() to call ->dump_detail
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 17:47:22 +0000 (17:47 +0000)]
cifs: SMB1 split: Don't return smb_hdr from cifs_{,small_}buf_get()
Return void* rather than struct smb_hdr* from from cifs_buf_get() and
cifs_small_buf_get() as SMB2/3 shouldn't be accessing smb_hdr.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:09:39 +0000 (15:09 +0000)]
cifs: SMB1 split: Move BCC access functions
Move the BCC access functions to smb1proto.h as they're only applicable to
SMB1.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 15:03:25 +0000 (15:03 +0000)]
cifs: SMB1 split: Adjust #includes
Adjust the #include set after the removal of the SMB1 protocol defs from
cifspdu.h.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 13:22:00 +0000 (13:22 +0000)]
cifs: SMB1 split: Split SMB1 protocol defs into smb1pdu.h
Split SMB1 protocol defs into smb1pdu.h. This should perhaps go in the
common/ directory.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 22:06:22 +0000 (22:06 +0000)]
cifs: SMB1 split: Add some #includes
Add some #includes to make sure things continue to compile as splitting
occurs.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Sep 2025 13:09:17 +0000 (14:09 +0100)]
cifs: SMB1 split: Move some SMB1 received PDU checking bits to smb1transport.c
Move some SMB1 received checking bits to smb1transport.c from misc.c
so that they're with the rest of the receive handling code.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 10 Sep 2025 07:47:09 +0000 (08:47 +0100)]
cifs: SMB1 split: Move some SMB1 receive bits to smb1transport.c
Move some SMB1 receive bits to smb1transport.c from smb1ops.c where they're
mixed in with unrelated code to do with encoding, decoding and processing
PDUs.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
sub pad($) {
# Reindent the function arguments to line the arguments up with the char
# after the opening bracket on the func argument list
my ($lines) = @_;
return $lines if ($#{$lines} <= 0);
my $has_empty = 0;
for (my $i = 0; $i <= $#{$lines}; $i++) {
$lines->[$i] =~ s/^[ \t]+//;
$has_empty = 1 if ($lines->[$i] eq "");
}
if ($has_empty) {
my @clean = grep /.+/, @{$lines};
$lines = \@clean;
}
my $indlen = index($lines->[0], "(");
return $lines if ($indlen < 0);
my $indent = "";
$indlen++;
$indent .= "\t" x ($indlen / 8);
$indent .= " " x ($indlen % 8);
my @padded = ();
my $acc = "";
my $len = -$indlen;
for (my $i = 0; $i <= $#{$lines}; $i++) {
my $argument = $lines->[$i];
my $arglen = length($argument);
my $last = ($i == $#{$lines} ? 1 : 0);
sub earliest(@) {
my $ret = -1;
foreach (@_) {
$ret = $_ if ($ret < 0 || ($_ >= 0 && $_ < $ret));
}
return $ret;
}
foreach my $file (@ARGV) {
# Open the file for reading.
next if $file =~ /trace[.]h$/;
next if $file =~ /smbdirect[.][ch]$/;
open my $fh, "<$file"
or die "Could not open file '$file'";
$pathname = $file;
$lineno = 0;
my $filename;
my @file_content = ();
my @copy = ();
my $state = 0;
my $qual = "";
my $type = "";
my $funcname = "";
my @funcdef = ();
my $bracket = 0;
my $comment = 0;
my $smb1 = 0;
my $header = 0;
my $inline = 0;
my $file_marker = "";
my $config = "";
my $c_file = 0;
# Start of a block comment
if ($line =~ m!^/[*]!) {
$comment = 1 unless ($line =~ m![*]/!);
push @file_content, @copy;
@copy = ();
next;
}
# End of a braced section, such as a function implementation
if ($line =~ /^[}]/) {
$type = "";
$qual = "";
$funcname = "";
@funcdef = ();
push @file_content, @copy;
@copy = ();
next;
}
# Extract function qualifiers. There may be multiple of these in more
# or less any order. Some of them cause the func to be skipped (e.g. inline).
if ($line =~ /^(static|extern|inline|noinline|noinline_for_stack|__always_inline)\W/ ||
$line =~ /^(static|extern|inline|noinline|noinline_for_stack|__always_inline)$/) {
error("Unexpected qualifier '$1'") if ($state != 0);
while ($line =~ /^(static|extern|inline|noinline|noinline_for_stack|__always_inline)\W/ ||
$line =~ /^(static|extern|inline|noinline|noinline_for_stack|__always_inline)$/) {
$qual .= " " if ($qual);
$qual .= $1;
$inline = 1 if ($1 eq "inline");
$inline = 1 if ($1 eq "__always_inline");
$line = substr($line, length($1));
$line =~ s/^\s+//;
}
}
if ($state == 0) {
# Extract what we assume to be the return type
if ($line =~ /^\s/) {
push @file_content, @copy;
@copy = ();
next;
}
while ($line =~ /^(unsigned|signed|bool|char|short|int|long|void|const|volatile|(struct|union|enum)\s+[_a-zA-Z][_a-zA-Z0-9]*|[*]|__init|__exit|__le16|__le32|__le64|__be16|__be32|__be64)/) {
$type .= " " if $type;
$type .= $1;
$line = substr($line, length($1));
$line =~ s/^\s+//;
}
if ($line =~ /^struct [{]/) {
# Ignore structure definitions
$type = "";
$qual = "";
$funcname = "";
@funcdef = ();
push @file_content, @copy;
@copy = ();
next;
}
if (index($line, "=") >= 0) {
# Ignore assignments
$type = "";
$qual = "";
$funcname = "";
@funcdef = "";
push @file_content, @copy;
@copy = ();
next;
}
# Try and extract a function's type and name
while ($line =~ /(^[_a-zA-Z][_a-zA-Z0-9]*)/) {
my $name = $1;
$line = substr($line, length($name));
next if ($line =~ /^[{]/);
$line =~ s/^\s+//;
my $ch = substr($line, 0, 1);
last if ($ch eq "[" || $ch eq ";"); # Global variables
if ($ch eq "(") {
# Found the function name
$state = 1;
$line = substr($line, 1);
$funcname = $name;
my $tmp = $qual . $type . " " . $funcname . "(";
$tmp =~ s/[*] /*/;
push @funcdef, $tmp;
$bracket = 1;
last;
}
if ($type) {
last if (index($line, ";") >= 0 && index($line, "(") == -1);
error("Unexpected name '$name' after '$type'");
}
$type .= " " if $type;
$type .= $name;
if ($line =~ /^(\s*[*]+)/) {
my $ptr = $1;
$type .= $ptr;
$line = substr($line, length($ptr));
}
}
}
# Try and extract a function's argument list
my $from = 0;
if ($state == 1) {
while (1) {
my $o = index($line, "(", $from);
my $c = index($line, ")", $from);
my $m = index($line, ",", $from);
my $b = earliest($o, $c, $m);
if ($b < 0) {
push @funcdef, $line
unless ($line eq "");
last;
}
my $ch = substr($line, $b, 1);
# Push the arguments separately on to the list
if ($ch eq ",") {
push @funcdef, substr($line, 0, $b + 1);
$line = substr($line, $b + 1);
$from = 0;
} elsif ($ch eq "(") {
# Handle brackets in the argument list (e.g. function
# pointers)
$bracket++;
$from = $b + 1;
} elsif ($ch eq ")") {
$bracket--;
if ($bracket == 0) {
push @funcdef, substr($line, 0, $b + 1);
$line = substr($line, $b + 1);
$state = 2;
last;
}
$from = $b + 1;
}
}
}
if ($state == 2) {
$inline = 1 if ($qual =~ /inline/);
#print("QUAL $qual $type $funcname $inline ", $#funcdef, "\n");
if (!$header &&
$qual !~ /static/ &&
$funcname ne "__acquires" &&
$funcname ne "__releases" &&
$funcname ne "module_init" &&
$funcname ne "module_exit" &&
$funcname ne "module_param" &&
$funcname ne "module_param_call" &&
$funcname ne "PROC_FILE_DEFINE" &&
$funcname !~ /MODULE_/ &&
$funcname !~ /DEFINE_/) {
# Okay, we appear to have a function implementation
my $func;
my $dup = 0;
if ($header) {
$header->{content} = \@file_content;
}
}
sub write_header($)
{
my ($header) = @_;
my $path = $header->{path};
my $legacy = 0;
$legacy = 1 if ($path =~ m!smb1proto[.]h!);
my @output = ();
foreach my $line (@{$header->{content}}) {
if ($line =~ "^[#]C_MARKER (.*)") {
my $file_marker = $cmarkers{$1};
my $c_file = $c_files{$file_marker};
print("Found $line\n");
foreach my $func (@{$c_file->{funcs}}) {
print("func ", $func->{name}, "\n");
push @output, @{$func->{body}};
}
next;
} elsif ($line =~ "^[#]FUNCPROTO ([_a-zA-Z0-9]+)") {
my $funcname = $1;
my $func = $funcs{$funcname};
if (!$func->{body}) {
print($func->{pathname}, ":", $func->{lineno}, ": '", $funcname,
"' dead prototype\n");
next;
}
if ($func->{legacy} == $legacy) {
#push @output, $line;
push @output, @{$func->{body}};
}
} else {
push @output, $line;
}
}
open my $fh, ">$path"
or die "Could not open file '$path' for writing";
foreach my $f (@output) {
print($fh $f, "\n") or die $path;
}
close($fh) or die $path;
}
foreach my $h (keys(%headers)) {
write_header($headers{$h});
}
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 09:54:35 +0000 (09:54 +0000)]
cifs: SMB1 split: Create smb1proto.h for SMB1 declarations
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Wed, 17 Dec 2025 16:10:05 +0000 (16:10 +0000)]
cifs: SMB1 split: Rename cifstransport.c
Rename cifstransport.c to smb1transport.c in order to give consistent names
SMB1-specific files.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:51 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/ntlmssp.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:51 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/reparse.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:51 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/smb2proto.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:51 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifs_debug.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:50 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifs_swn.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:50 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/compress.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:49 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifs_spnego.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:49 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/fs_context.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:49 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/fscache.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:49 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifsglob.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:48 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/dns_resolve.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:48 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/dfs_cache.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:47 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifsfs.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:46 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/netlink.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:46 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifs_unicode.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:45 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cifsproto.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:45 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/dfs.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
David Howells [Thu, 11 Dec 2025 11:50:44 +0000 (11:50 +0000)]
cifs: Scripted clean up fs/smb/client/cached_dir.h
Remove externs, correct argument names and reformat declarations.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Enzo Matsumiya <ematsumiya@suse.de>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-kernel@vger.kernel.org Acked-by: Enzo Matsumiya <ematsumiya@suse.de> Signed-off-by: Steve French <stfrench@microsoft.com>
smb: client: add multichannel async work for CONFIG_CIFS_DFS_UPCALL=n
Multichannel support is independent of DFS configuration. Extend the
async multichannel setup to non-DFS cifs.ko.
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
smb: client: introduce multichannel async work during mount
Mounts can experience large delays when servers advertise interfaces
that are unreachable from the client.
To fix this, decouple channel addition from the synchronous mount path
by introducing struct mchan_mount and running channel setup as
background work.
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
smb: client: split cached_fid bitfields to avoid shared-byte RMW races
is_open, has_lease and on_list are stored in the same bitfield byte in
struct cached_fid but are updated in different code paths that may run
concurrently. Bitfield assignments generate byte read–modify–write
operations (e.g. `orb $mask, addr` on x86_64), so updating one flag can
restore stale values of the others.
A possible interleaving is:
CPU1: load old byte (has_lease=1, on_list=1)
CPU2: clear both flags (store 0)
CPU1: RMW store (old | IS_OPEN) -> reintroduces cleared bits
To avoid this class of races, convert these flags to separate bool
fields.
Cc: stable@vger.kernel.org Fixes: ebe98f1447bbc ("cifs: enable caching of directories for which a lease is held") Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 18:51:13 +0000 (00:21 +0530)]
cifs: Fix locking usage for tcon fields
We used to use the cifs_tcp_ses_lock to protect a lot of objects
that are not just the server, ses or tcon lists. We later introduced
srv_lock, ses_lock and tc_lock to protect fields within the
corresponding structs. This was done to provide a more granular
protection and avoid unnecessary serialization.
There were still a couple of uses of cifs_tcp_ses_lock to provide
tcon fields. In this patch, I've replaced them with tc_lock.
Cc: stable@vger.kernel.org Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 18:51:12 +0000 (00:21 +0530)]
cifs: Corrections to lock ordering notes
There were a couple of discrepencies in lock ordering for the locks
that were specified in the lock ordering notes. Did an analysis
of the current codebase (using LLM) and found two pairs whose ordering
in these notes were wrong. It also found one lock that was recently
removed, and a few locks that weren't documented here before.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 08:33:06 +0000 (14:03 +0530)]
cifs: make retry logic in read/write path consistent with other paths
Today in most other code paths in cifs.ko, the decision of whether
to retry a command depends on two mount options: retrans and hard.
However, the read/write code paths diverged from this and would only
retry if the error returned was -EAGAIN. However, there are other
replayable errors in cifs.ko, for which is_replayable_errors helper
was written. This change makes read/write codepaths consistent with
other code-paths.
This change also does the following:
1. The SMB2 read/write code diverged significantly (presumably since
they were changed during netfs refactor at different times). This
changes the response verification logic to be consistent.
2. Moves the netfs tracepoints to slightly different locations in order
to make debugging easier.
Cc: David Howells <dhowells@redhat.com> Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 08:33:05 +0000 (14:03 +0530)]
netfs: avoid double increment of retry_count in subreq
This change fixes the instance of double incrementing of
retry_count. The increment of this count already happens
when netfs_reissue_write gets called. Incrementing this
value before is not necessary.
Fixes: 4acb665cf4f3 ("netfs: Work around recursion by abandoning retry if nothing read") Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 08:33:04 +0000 (14:03 +0530)]
netfs: when subreq is marked for retry, do not check if it faced an error
The *_subreq_terminated functions today only process the NEED_RETRY
flag when the subreq was successful or failed with EAGAIN error.
However, there could be other retriable errors for network filesystems.
Avoid this by processing the NEED_RETRY irrespective of the error
code faced by the subreq. If it was specifically marked for retry,
the error code must not matter.
Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Shyam Prasad N [Sat, 31 Jan 2026 08:33:03 +0000 (14:03 +0530)]
cifs: on replayable errors back-off before replay, not after
On replayable errors, we call smb2_should_replays that does these
things today:
1. decide if we need to replay the command again
2. sleep to back-off the failed request
3. update the next sleep value
We will not be able to use this for async requests, when this is
processed in callbacks (as this will be called in cifsd threads that
should not sleep in response processing).
Modify the behaviour by taking the sleep out of smb2_should_replay
and performing the sleep for back-off just before actually
performing the replay.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Linus Torvalds [Sat, 7 Feb 2026 17:37:34 +0000 (09:37 -0800)]
Merge tag 'spi-fix-v6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"One final batch of fixes for the Tegra SPI drivers, the main one is a
batch of fixes for races with the interrupts in the Tegra210 QSPI
driver that Breno has been working on for a while"
* tag 'spi-fix-v6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: tegra114: Preserve SPI mode bits in def_command1_reg
spi: tegra: Fix a memory leak in tegra_slink_probe()
spi: tegra210-quad: Protect curr_xfer check in IRQ handler
spi: tegra210-quad: Protect curr_xfer clearing in tegra_qspi_non_combined_seq_xfer
spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer
spi: tegra210-quad: Protect curr_xfer assignment in tegra_qspi_setup_transfer_one
spi: tegra210-quad: Move curr_xfer read inside spinlock
spi: tegra210-quad: Return IRQ_HANDLED when timeout already processed transfer
Linus Torvalds [Sat, 7 Feb 2026 17:34:49 +0000 (09:34 -0800)]
Merge tag 'regulator-fix-v6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"One last fix for v6.19: the voltages for the SpaceMIT P1 were not
described correctly"
* tag 'regulator-fix-v6.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: spacemit-p1: Fix n_voltages for BUCK and LDO regulators
Linus Torvalds [Sat, 7 Feb 2026 17:27:57 +0000 (09:27 -0800)]
Merge tag 'char-misc-6.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull binder fixes from Greg KH:
"Here are some small, last-minute binder C and Rust driver fixes for
reported issues. They include a number of fixes for reported crashes
and other problems.
All of these have been in linux-next this week, and longer"
* tag 'char-misc-6.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binderfs: fix ida_alloc_max() upper bound
rust_binderfs: fix ida_alloc_max() upper bound
binder: fix BR_FROZEN_REPLY error log
rust_binder: add additional alignment checks
binder: fix UAF in binder_netlink_report()
rust_binder: correctly handle FDA objects of length zero
Linus Torvalds [Sat, 7 Feb 2026 17:10:42 +0000 (09:10 -0800)]
Merge tag 'sched-urgent-2026-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Miscellaneous MMCID fixes to address bugs and performance regressions
in the recent rewrite of the SCHED_MM_CID management code:
- Fix livelock triggered by BPF CI testing
- Fix hard lockup on weakly ordered systems
- Simplify the dropping of CIDs in the exit path by removing an
unintended transition phase
- Fix performance/scalability regression on a thread-pool benchmark
by optimizing transitional CIDs when scheduling out"
* tag 'sched-urgent-2026-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/mmcid: Optimize transitional CIDs when scheduling out
sched/mmcid: Drop per CPU CID immediately when switching to per task mode
sched/mmcid: Protect transition on weakly ordered systems
sched/mmcid: Prevent live lock on task to CPU mode transition
Linus Torvalds [Sat, 7 Feb 2026 16:21:21 +0000 (08:21 -0800)]
Merge tag 'objtool-urgent-2026-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar::
- Bump up the Clang minimum version requirements for livepatch
builds, due to Clang assembler section handling bugs causing
silent miscompilations
- Strip livepatching symbol artifacts from non-livepatch modules
- Fix livepatch build warnings when certain Clang LTO options
are enabled
- Fix livepatch build error when CONFIG_MEM_ALLOC_PROFILING_DEBUG=y
* tag 'objtool-urgent-2026-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/klp: Fix unexported static call key access for manually built livepatch modules
objtool/klp: Fix symbol correlation for orphaned local symbols
livepatch: Free klp_{object,func}_ext data after initialization
livepatch: Fix having __klp_objects relics in non-livepatch modules
livepatch/klp-build: Require Clang assembler >= 20
Josh Poimboeuf [Fri, 6 Feb 2026 22:24:55 +0000 (14:24 -0800)]
x86/vmware: Fix hypercall clobbers
Fedora QA reported the following panic:
BUG: unable to handle page fault for address: 0000000040003e54
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20251119-3.fc43 11/19/2025
RIP: 0010:vmware_hypercall4.constprop.0+0x52/0x90
..
Call Trace:
vmmouse_report_events+0x13e/0x1b0
psmouse_handle_byte+0x15/0x60
ps2_interrupt+0x8a/0xd0
...
because the QEMU VMware mouse emulation is buggy, and clears the top 32
bits of %rdi that the kernel kept a pointer in.
The QEMU vmmouse driver saves and restores the register state in a
"uint32_t data[6];" and as a result restores the state with the high
bits all cleared.
RDI originally contained the value of a valid kernel stack address
(0xff5eeb3240003e54). After the vmware hypercall it now contains
0x40003e54, and we get a page fault as a result when it is dereferenced.
The proper fix would be in QEMU, but this works around the issue in the
kernel to keep old setups working, when old kernels had not happened to
keep any state in %rdi over the hypercall.
In theory this same issue exists for all the hypercalls in the vmmouse
driver; in practice it has only been seen with vmware_hypercall3() and
vmware_hypercall4(). For now, just mark RDI/RSI as clobbered for those
two calls. This should have a minimal effect on code generation overall
as it should be rare for the compiler to want to make RDI/RSI live
across hypercalls.
Linus Torvalds [Fri, 6 Feb 2026 21:07:47 +0000 (13:07 -0800)]
Merge tag 'mm-hotfixes-stable-2026-02-06-12-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"A couple of late-breaking MM fixes. One against a new-in-this-cycle
patch and the other addresses a locking issue which has been there for
over a year"
* tag 'mm-hotfixes-stable-2026-02-06-12-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/memory-failure: reject unsupported non-folio compound page
procfs: avoid fetching build ID while holding VMA lock
Linus Torvalds [Fri, 6 Feb 2026 20:37:28 +0000 (12:37 -0800)]
Merge tag 'trace-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fix from Steven Rostedt:
- Fix event format field alignments for 32 bit architectures
The fields in the event format files are used to parse the raw binary
buffer data by applications. If they are incorrect, then the
application produces garbage.
On 32 bit architectures, the function graph 64bit calltime and
rettime were off by 4bytes. That's because the actual fields are in a
packed structure but the macros used by the ftrace events did not
mark them as packed, and instead, gave them their natural alignment
which made their offsets off by 4 bytes.
There are macros to have a packed field within an embedded structure
of an event, but there's no macro for normal fields within a packed
structure of the event. The macro __field_packed() was used for the
packed embedded structure field. Rename that to __field_desc_packed()
(to match the non-packed embedded field macro __field_desc()), and
make __field_packed() for fields that are in a packed event structure
(which matches the unpacked __field() macro).
Switch the calltime and rettime fields of the function graph event to
use the new __field_packed() and this makes the offsets correct.
* tag 'trace-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix ftrace event field alignments
Linus Torvalds [Fri, 6 Feb 2026 18:34:17 +0000 (10:34 -0800)]
Merge tag 'ceph-for-6.19-rc9' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"One RBD and two CephFS fixes which address potential oopses.
The RBD thing is more of a rare edge case that pops up in our CI,
while the two CephFS scenarios are regressions that were reported by
users and can be triggered trivially in normal operation. All marked
for stable"
* tag 'ceph-for-6.19-rc9' of https://github.com/ceph/ceph-client:
ceph: fix NULL pointer dereference in ceph_mds_auth_match()
ceph: fix oops due to invalid pointer for kfree() in parse_longname()
rbd: check for EOD after exclusive lock is ensured to be held
Linus Torvalds [Fri, 6 Feb 2026 18:27:42 +0000 (10:27 -0800)]
Merge tag 'dma-mapping-6.19-2026-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fixes from Marek Szyprowski:
"Two minor fixes for the DMA-mapping subsystem:
- check for the rare case of the allocation failure of the global CMA
pool (Shanker Donthineni)
- avoid perf buffer overflow when tracing large scatter-gather lists
(Deepanshu Kartikey)"
* tag 'dma-mapping-6.19-2026-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
dma: contiguous: Check return value of dma_contiguous_reserve_area()
tracing/dma: Cap dma_map_sg tracepoint arrays to prevent buffer overflow
Linus Torvalds [Fri, 6 Feb 2026 18:10:39 +0000 (10:10 -0800)]
Merge tag 'pmdomain-v6.19-rc3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fixes from Ulf Hansson:
- imx:
- Fix system wakeup support for imx8mp power domains
- Fix potential out-of-range access for imx8m power domains
- Fix the imx8mm gpu hang
- qcom: Fix off-by-one error for highest state in rpmpd
* tag 'pmdomain-v6.19-rc3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
pmdomain: imx8mp-blk-ctrl: Keep usb phy power domain on for system wakeup
pmdomain: imx8mp-blk-ctrl: Keep gpc power domain on for system wakeup
pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains
pmdomain: imx: gpcv2: Fix the imx8mm gpu hang due to wrong adb400 reset
pmdomain: qcom: rpmpd: fix off-by-one error in clamping to the highest state
Linus Torvalds [Fri, 6 Feb 2026 17:59:40 +0000 (09:59 -0800)]
Merge tag 'sound-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes. It became a bit larger than wished, but
all of them are device-specific small fixes, and it should be still
fairly safe to take at the last minute.
Included are a few quirks and fixes for Intel, AMD, HD-audio, and
USB-audio, as well as a race fix in aloop driver and corrections of
Cirrus firmware kunit test"
* tag 'sound-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Enable headset mic for Acer Nitro 5
ASoC: fsl_xcvr: fix missing lock in fsl_xcvr_mode_put()
ASoC: dt-bindings: ti,tlv320aic3x: Add compatible string ti,tlv320aic23
ASoC: amd: fix memory leak in acp3x pdm dma ops
ALSA: usb-audio: fix broken logic in snd_audigy2nx_led_update()
ALSA: aloop: Fix racy access at PCM trigger
ASoC: rt1320: fix intermittent no-sound issue
ASoC: SOF: Intel: use hdev->info.link_mask directly
firmware: cs_dsp: rate-limit log messages in KUnit builds
ASoC: amd: yc: Add quirk for HP 200 G2a 16
ASoC: cs42l43: Correct handling of 3-pole jack load detection
ASoC: Intel: sof_es8336: Add DMI quirk for Huawei BOD-WXX9
ASoC: sof_sdw: Add a quirk for Lenovo laptop using sidecar amps with cs42l43
Linus Torvalds [Fri, 6 Feb 2026 17:56:03 +0000 (09:56 -0800)]
Merge tag 'slab-for-6.19-rc8-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
"A stable fix for memory allocation profiling tag not being cleared
when aborting an allocation due to memcg charge failure (Hao Ge)"
* tag 'slab-for-6.19-rc8-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm/slab: Add alloc_tagging_slab_free_hook for memcg_alloc_abort_single
Viktor Kleen [Thu, 5 Feb 2026 08:49:41 +0000 (16:49 +0800)]
iommu/vt-d: Treat PAGE_SNOOP and PWSNP separately
The PASID_FLAG_PAGE_SNOOP and PASID_FLAG_PWSNP constants are identical.
This will cause the pasid code to always set both or neither of the
PGSNP and PWSNP bits in PASID table entries. However, PWSNP is a
reserved bit if SMPWC is not set in the IOMMU's extended capability
register, even if SC is supported.
This has resulted in DMAR errors when testing the iommufd code on an
Arrow Lake platform. With this patch, those errors disappear and the
PASID table entries look correct.
Fixes: 101a2854110fa ("iommu/vt-d: Follow PT_FEAT_DMA_INCOHERENT into the PASID entry") Cc: stable@vger.kernel.org Signed-off-by: Viktor Kleen <viktor@kleen.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20260202192109.1665799-1-viktor@kleen.org Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
When __memcg_slab_post_alloc_hook() fails, there are two different
free paths depending on whether size == 1 or size != 1. In the
kmem_cache_free_bulk() path, we do call alloc_tagging_slab_free_hook().
However, in memcg_alloc_abort_single() we don't, the above warning will be
triggered on the next allocation.
Therefore, add alloc_tagging_slab_free_hook() to the
memcg_alloc_abort_single() path.
Fixes: 9f9796b413d3 ("mm, slab: move memcg charging to post-alloc hook") Cc: stable@vger.kernel.org Suggested-by: Hao Li <hao.li@linux.dev> Signed-off-by: Hao Ge <hao.ge@linux.dev> Reviewed-by: Hao Li <hao.li@linux.dev> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Reviewed-by: Harry Yoo <harry.yoo@oracle.com> Link: https://patch.msgid.link/20260204101401.202762-1-hao.ge@linux.dev Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Linus Torvalds [Fri, 6 Feb 2026 05:33:22 +0000 (21:33 -0800)]
Merge tag 'hwmon-for-v6.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- occ: Mark occ_init_attribute() as __printf to avoid build failure due
to '-Werror=suggest-attribute=format'
- gpio-fan: Allow to stop fans when CONFIG_PM is disabled, and fix
set_rpm() return value
- acpi_power_meter: Fix deadlocks related to acpi_power_meter_notify()
- dell-smm: Add Dell G15 5510 to fan control whitelist
* tag 'hwmon-for-v6.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (occ) Mark occ_init_attribute() as __printf
hwmon: (gpio-fan) Allow to stop FANs when CONFIG_PM is disabled
hwmon: (gpio-fan) Fix set_rpm() return value
hwmon: (acpi_power_meter) Fix deadlocks related to acpi_power_meter_notify()
hwmon: (dell-smm) Add Dell G15 5510 to fan control whitelist
Linus Torvalds [Fri, 6 Feb 2026 03:56:47 +0000 (19:56 -0800)]
Merge tag 'drm-fixes-2026-02-06' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"The usual xe/amdgpu selection, and a couple of misc changes for
gma500, mgag200 and bridge. There is a nouveau revert, and also a set
of changes that fix a regression since we moved to 570 firmware.
Suspend/resume was broken on a bunch of GPUs. The fix looks big, but
it's mostly just refactoring to pass an extra bit down the nouveau
abstractions to the firmware command.
amdgpu:
- MES 11 old firmware compatibility fix
- ASPM fix
- DC LUT fixes
amdkfd:
- Fix possible double deletion of validate list
xe:
- Fix topology query pointer advance
- A couple of kerneldoc fixes
- Disable D3Cold for BMG only on specific platforms
- Fix CFI violation in debugfs access
nouveau:
- Revert adding atomic commit functions as it regresses pre-nv50
- Fix suspend/resume bugs exposed by enabling 570 firmware
gma500:
- Revert a regression caused by vblank changes
mgag200:
- Replace a busy loop with a polling loop to fix that blocking 1 cpu
for 300 ms roughly every 20 minutes
bridge:
- imx8mp-hdmi-pa: Use runtime pm to fix a bug in channel ordering"
* tag 'drm-fixes-2026-02-06' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe/guc: Fix CFI violation in debugfs access.
drm/bridge: imx8mp-hdmi-pai: enable PM runtime
drm/xe/pm: Disable D3Cold for BMG only on specific platforms
drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep
drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early
drm/xe: Fix kerneldoc for xe_migrate_exec_queue
drm/xe/query: Fix topology query pointer advance
drm/mgag200: fix mgag200_bmc_stop_scanout()
nouveau/gsp: fix suspend/resume regression on r570 firmware
nouveau: add a third state to the fini handler.
nouveau/gsp: use rpc sequence numbers properly.
drm/amdgpu: Fix double deletion of validate_list
drm/amd/display: remove assert around dpp_base replacement
drm/amd/display: extend delta clamping logic to CM3 LUT helper
drm/amd/display: fix wrong color value mapping on MCM shaper LUT
Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"
drm/amd: Set minimum version for set_hw_resource_1 on gfx11 to 0x52
Revert "drm/gma500: use drm_crtc_vblank_crtc()"
Revert "drm/nouveau/disp: Set drm_mode_config_funcs.atomic_(check|commit)"
Dave Airlie [Fri, 6 Feb 2026 02:41:35 +0000 (12:41 +1000)]
Merge tag 'drm-xe-fixes-2026-02-05' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix topology query pointer advance (Shuicheng)
- A couple of kerneldoc fixes (Shuicheng)
- Disable D3Cold for BMG only on specific platforms (Karthik)
- Fix CFI violation in debugfs access (Daniele)
Linus Torvalds [Thu, 5 Feb 2026 23:00:53 +0000 (15:00 -0800)]
Merge tag 'block-6.19-20260205' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Revert of a change for loop, which caused regressions for some users
(Actually revert of two commits, where one is just an existing fix
for the offending commit)
- NVMe pull via Keith:
- Fix NULL pointer access setting up dma mappings
- Fix invalid memory access from malformed TCP PDU
* tag 'block-6.19-20260205' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
loop: revert exclusive opener loop status change
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvme-pci: handle changing device dma map requirements
Linus Torvalds [Thu, 5 Feb 2026 22:40:06 +0000 (14:40 -0800)]
Merge tag 'io_uring-6.19-20260205' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Two small fixes for zcrx
- Two small fixes for fdinfo - one is just killing a superflous newline
* tag 'io_uring-6.19-20260205' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/fdinfo: be a bit nicer when looping a lot of SQEs/CQEs
io_uring/fdinfo: kill unnecessary newline feed in CQE32 printing
io_uring/zcrx: fix rq flush locking
io_uring/zcrx: fix page array leak
When !CONFIG_TRANSPARENT_HUGEPAGE, a non-folio compound page can appear in
a userspace mapping via either vm_insert_*() functions or
vm_operatios_struct->fault(). They are not folios, thus should not be
considered for folio operations like split. To reject these pages, make
sure get_hwpoison_page() is always called as HWPoisonHandlable() will do
the right work.
[Some commit log borrowed from Zi Yan. Thanks.]
Link: https://lkml.kernel.org/r/20260205075328.523211-1-linmiaohe@huawei.com Fixes: 689b8986776c ("mm/memory-failure: improve large block size folio handling") Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reported-by: 是参差 <shicenci@gmail.com> Closes: https://lore.kernel.org/all/PS1PPF7E1D7501F1E4F4441E7ECD056DEADAB98A@PS1PPF7E1D7501F.apcprd02.prod.outlook.com/ Reviewed-by: Zi Yan <ziy@nvidia.com> Tested-by: Zi Yan <ziy@nvidia.com> Cc: David Hildenbrand <david@kernel.org> Cc: Jane Chu <jane.chu@oracle.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Andrii Nakryiko [Thu, 29 Jan 2026 21:53:40 +0000 (13:53 -0800)]
procfs: avoid fetching build ID while holding VMA lock
Fix PROCMAP_QUERY to fetch optional build ID only after dropping mmap_lock
or per-VMA lock, whichever was used to lock VMA under question, to avoid
deadlock reported by syzbot:
This seems to be exacerbated (as we haven't seen these syzbot reports
before that) by the recent:
777a8560fd29 ("lib/buildid: use __kernel_read() for sleepable context")
To make this safe, we need to grab file refcount while VMA is still locked, but
other than that everything is pretty straightforward. Internal build_id_parse()
API assumes VMA is passed, but it only needs the underlying file reference, so
just add another variant build_id_parse_file() that expects file passed
directly.
[akpm@linux-foundation.org: fix up kerneldoc] Link: https://lkml.kernel.org/r/20260129215340.3742283-1-andrii@kernel.org Fixes: ed5d583a88a9 ("fs/procfs: implement efficient VMA querying API for /proc/<pid>/maps") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reported-by: <syzbot+4e70c8e0a2017b432f7a@syzkaller.appspotmail.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Tested-by: Suren Baghdasaryan <surenb@google.com> Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Hao Luo <haoluo@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Song Liu <song@kernel.org> Cc: Stanislav Fomichev <sdf@fomichev.me> Cc: Yonghong Song <yonghong.song@linux.dev> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Vishwaroop A [Wed, 4 Feb 2026 14:12:12 +0000 (14:12 +0000)]
spi: tegra114: Preserve SPI mode bits in def_command1_reg
The COMMAND1 register bits [29:28] set the SPI mode, which controls
the clock idle level. When a transfer ends, tegra_spi_transfer_end()
writes def_command1_reg back to restore the default state, but this
register value currently lacks the mode bits. This results in the
clock always being configured as idle low, breaking devices that
need it high.
Fix this by storing the mode bits in def_command1_reg during setup,
to prevent this field from always being cleared.
Linus Torvalds [Thu, 5 Feb 2026 19:19:26 +0000 (11:19 -0800)]
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull dcache fixes from Al Viro:
"A couple of regression fixes for the tree-in-dcache series this cycle"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
functionfs: use spinlock for FFS_DEACTIVATED/FFS_CLOSING transitions
rust_binderfs: fix a dentry leak
Al Viro [Sat, 31 Jan 2026 23:24:41 +0000 (18:24 -0500)]
functionfs: use spinlock for FFS_DEACTIVATED/FFS_CLOSING transitions
When all files are closed, functionfs needs ffs_data_reset() to be
done before any further opens are allowed.
During that time we have ffs->state set to FFS_CLOSING; that makes
->open() fail with -EBUSY. Once ffs_data_reset() is done, it
switches state (to FFS_READ_DESCRIPTORS) indicating that opening
that thing is allowed again. There's a couple of additional twists:
* mounting with -o no_disconnect delays ffs_data_reset()
from doing that at the final ->release() to the first subsequent
open(). That's indicated by ffs->state set to FFS_DEACTIVATED;
if open() sees that, it immediately switches to FFS_CLOSING and
proceeds with doing ffs_data_reset() before returning to userland.
* a couple of usb callbacks need to force the delayed
transition; unfortunately, they are done in locking environment
that does not allow blocking and ffs_data_reset() can block.
As the result, if these callbacks see FFS_DEACTIVATED, they change
state to FFS_CLOSING and use schedule_work() to get ffs_data_reset()
executed asynchronously.
Unfortunately, the locking is rather insufficient. A fix attempted
in e5bf5ee26663 ("functionfs: fix the open/removal races") had closed
a bunch of UAF, but it didn't do anything to the callbacks, lacked
barriers in transition from FFS_CLOSING to FFS_READ_DESCRIPTORS
_and_ it had been too heavy-handed in open()/open() serialization -
I've used ffs->mutex for that, and it's being held over actual IO on
ep0, complete with copy_from_user(), etc.
Even more unfortunately, the userland side is apparently racy enough
to have the resulting timing changes (no failures, just a delayed
return of open(2)) disrupt the things quite badly. Userland bugs
or not, it's a clear regression that needs to be dealt with.
Solution is to use a spinlock for serializing these state checks and
transitions - unlike ffs->mutex it can be taken in these callbacks
and it doesn't disrupt the timings in open().
We could introduce a new spinlock, but it's easier to use the one
that is already there (ffs->eps_lock) instead - the locking
environment is safe for it in all affected places.
Since now it is held over all places that alter or check the
open count (ffs->opened), there's no need to keep that atomic_t -
int would serve just fine and it's simpler that way.
Fixes: e5bf5ee26663 ("functionfs: fix the open/removal races") Fixes: 18d6b32fca38 ("usb: gadget: f_fs: add "no_disconnect" mode") # v4.0 Tested-by: Samuel Wu <wusamuel@google.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 26 Jan 2026 06:05:57 +0000 (01:05 -0500)]
rust_binderfs: fix a dentry leak
Parallel to binderfs patches - 02da8d2c0965 "binderfs_binder_ctl_create():
kill a bogus check" and the bit of b89aa544821d "convert binderfs" that
got lost when making 4433d8e25d73 "convert rust_binderfs"; the former is
a cleanup, the latter is about marking /binder-control persistent, so that
it would be taken out on umount.
Fixes: 4433d8e25d73 ("convert rust_binderfs") Acked-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Shigeru Yoshida [Wed, 4 Feb 2026 09:58:37 +0000 (18:58 +0900)]
ipv6: Fix ECMP sibling count mismatch when clearing RTF_ADDRCONF
syzbot reported a kernel BUG in fib6_add_rt2node() when adding an IPv6
route. [0]
Commit f72514b3c569 ("ipv6: clear RA flags when adding a static
route") introduced logic to clear RTF_ADDRCONF from existing routes
when a static route with the same nexthop is added. However, this
causes a problem when the existing route has a gateway.
When RTF_ADDRCONF is cleared from a route that has a gateway, that
route becomes eligible for ECMP, i.e. rt6_qualify_for_ecmp() returns
true. The issue is that this route was never added to the
fib6_siblings list.
This leads to a mismatch between the following counts:
- The sibling count computed by iterating fib6_next chain, which
includes the newly ECMP-eligible route
- The actual siblings in fib6_siblings list, which does not include
that route
When a subsequent ECMP route is added, fib6_add_rt2node() hits
BUG_ON(sibling->fib6_nsiblings != rt->fib6_nsiblings) because the
counts don't match.
Fix this by only clearing RTF_ADDRCONF when the existing route does
not have a gateway. Routes without a gateway cannot qualify for ECMP
anyway (rt6_qualify_for_ecmp() requires fib_nh_gw_family), so clearing
RTF_ADDRCONF on them is safe and matches the original intent of the
commit.
Jakub Kicinski [Thu, 5 Feb 2026 16:38:02 +0000 (08:38 -0800)]
Merge tag 'nf-26-02-05' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
netfilter: update for net
This is one last-minute crash fix for nf_tables, from Andrew Fasano:
Logical check is inverted, this makes kernel fail to correctly undo
the transaction, leading to a use-after-free.
* tag 'nf-26-02-05' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()
====================
Jens Axboe [Thu, 5 Feb 2026 16:26:53 +0000 (09:26 -0700)]
loop: revert exclusive opener loop status change
This commit effectively reverts the following two commits:
2704024d83fa ("loop: add missing bd_abort_claiming in loop_set_status") 08e136ebd193 ("loop: don't change loop device under exclusive opener in loop_set_status")
as there are reports of them causing issues with unmounting. As we're
close to the 6.19 kernel release and the original author hasn't taken a
closer look at this yet, revert them for release.
This is caused an extra file->klp sanity check which was added by commit 164c9201e1da ("objtool: Add base objtool support for livepatch
modules"). That check was intended to ensure that livepatch modules
built with klp-build always have full access to their static call keys.
However, it failed to account for the fact that manually built livepatch
modules (i.e., not built with klp-build) might need access to unexported
static call keys, for which read-only access is typically allowed for
modules.
While the livepatch-shadow-fix1 module doesn't explicitly use any static
calls, it does have a memory allocation, which can cause
CONFIG_MEM_ALLOC_PROFILING_DEBUG to insert a WARN() call. And WARN() is
now an unexported static call as of commit 860238af7a33 ("x86_64/bug:
Inline the UD1").
Fix it by removing the overzealous file->klp check, restoring the
original behavior for manually built livepatch modules.
Josh Poimboeuf [Mon, 2 Feb 2026 18:01:08 +0000 (10:01 -0800)]
objtool/klp: Fix symbol correlation for orphaned local symbols
When compiling with CONFIG_LTO_CLANG_THIN, vmlinux.o has
__irf_[start|end] before the first FILE entry:
$ readelf -sW vmlinux.o
Symbol table '.symtab' contains 597706 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 18 __irf_start
2: 0000000000000200 0 NOTYPE LOCAL DEFAULT 18 __irf_end
3: 0000000000000000 0 SECTION LOCAL DEFAULT 17 .text
4: 0000000000000000 0 SECTION LOCAL DEFAULT 18 .init.ramfs
This causes klp-build warnings like:
vmlinux.o: warning: objtool: no correlation: __irf_start
vmlinux.o: warning: objtool: no correlation: __irf_end
The problem is that Clang LTO is stripping the initramfs_data.o FILE
symbol, causing those two symbols to be orphaned and not noticed by
klp-diff's correlation logic. Add a loop to correlate any symbols found
before the first FILE symbol.
Petr Pavlu [Fri, 23 Jan 2026 10:26:57 +0000 (11:26 +0100)]
livepatch: Free klp_{object,func}_ext data after initialization
The klp_object_ext and klp_func_ext data, which are stored in the
__klp_objects and __klp_funcs sections, respectively, are not needed
after they are used to create the actual klp_object and klp_func
instances. This operation is implemented by the init function in
scripts/livepatch/init.c.
Prefix the two sections with ".init" so they are freed after the module
is initializated.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Aaron Tomlin <atomlin@atomlin.com> Link: https://patch.msgid.link/20260123102825.3521961-3-petr.pavlu@suse.com Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>