6.9-stable patches

added patches:
	f2fs-fix-to-do-sanity-check-on-i_xattr_nid-in-sanity_check_inode.patch
	media-lgdt3306a-add-a-check-against-null-pointer-def.patch

diff --git a/queue-6.9/f2fs-fix-to-do-sanity-check-on-i_xattr_nid-in-sanity_check_inode.patch b/queue-6.9/f2fs-fix-to-do-sanity-check-on-i_xattr_nid-in-sanity_check_inode.patch
new file mode 100644 (file)
index 0000000..d1c07a0
--- /dev/null
+++ b/queue-6.9/f2fs-fix-to-do-sanity-check-on-i_xattr_nid-in-sanity_check_inode.patch
@@ -0,0 +1,69 @@
+From 20faaf30e55522bba2b56d9c46689233205d7717 Mon Sep 17 00:00:00 2001
+From: Chao Yu <chao@kernel.org>
+Date: Thu, 25 Apr 2024 16:58:38 +0800
+Subject: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
+
+From: Chao Yu <chao@kernel.org>
+
+commit 20faaf30e55522bba2b56d9c46689233205d7717 upstream.
+
+syzbot reports a kernel bug as below:
+
+F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
+==================================================================
+BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]
+BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]
+BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600
+Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076
+
+CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
+Call Trace:
+ <TASK>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
+ print_address_description mm/kasan/report.c:377 [inline]
+ print_report+0x169/0x550 mm/kasan/report.c:488
+ kasan_report+0x143/0x180 mm/kasan/report.c:601
+ f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]
+ current_nat_addr fs/f2fs/node.h:213 [inline]
+ f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600
+ f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]
+ f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925
+ ioctl_fiemap fs/ioctl.c:220 [inline]
+ do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838
+ __do_sys_ioctl fs/ioctl.c:902 [inline]
+ __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890
+ do_syscall_x64 arch/x86/entry/common.c:52 [inline]
+ do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+The root cause is we missed to do sanity check on i_xattr_nid during
+f2fs_iget(), so that in fiemap() path, current_nat_addr() will access
+nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering
+kasan bug report, fix it.
+
+Reported-and-tested-by: syzbot+3694e283cf5c40df6d14@syzkaller.appspotmail.com
+Closes: https://lore.kernel.org/linux-f2fs-devel/00000000000094036c0616e72a1d@google.com
+Signed-off-by: Chao Yu <chao@kernel.org>
+Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/f2fs/inode.c |    6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/fs/f2fs/inode.c
++++ b/fs/f2fs/inode.c
+@@ -361,6 +361,12 @@ static bool sanity_check_inode(struct in
+               return false;
+       }
+ 
++      if (fi->i_xattr_nid && f2fs_check_nid_range(sbi, fi->i_xattr_nid)) {
++              f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_xattr_nid: %u, run fsck to fix.",
++                        __func__, inode->i_ino, fi->i_xattr_nid);
++              return false;
++      }
++
+       return true;
+ }
+ 

diff --git a/queue-6.9/media-lgdt3306a-add-a-check-against-null-pointer-def.patch b/queue-6.9/media-lgdt3306a-add-a-check-against-null-pointer-def.patch
new file mode 100644 (file)
index 0000000..9790cf5
--- /dev/null
+++ b/queue-6.9/media-lgdt3306a-add-a-check-against-null-pointer-def.patch
@@ -0,0 +1,51 @@
+From c1115ddbda9c930fba0fdd062e7a8873ebaf898d Mon Sep 17 00:00:00 2001
+From: Zheyu Ma <zheyuma97@gmail.com>
+Date: Tue, 5 Apr 2022 10:50:18 +0100
+Subject: media: lgdt3306a: Add a check against null-pointer-def
+
+From: Zheyu Ma <zheyuma97@gmail.com>
+
+commit c1115ddbda9c930fba0fdd062e7a8873ebaf898d upstream.
+
+The driver should check whether the client provides the platform_data.
+
+The following log reveals it:
+
+[   29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40
+[   29.610730] Read of size 40 at addr 0000000000000000 by task bash/414
+[   29.612820] Call Trace:
+[   29.613030]  <TASK>
+[   29.613201]  dump_stack_lvl+0x56/0x6f
+[   29.613496]  ? kmemdup+0x30/0x40
+[   29.613754]  print_report.cold+0x494/0x6b7
+[   29.614082]  ? kmemdup+0x30/0x40
+[   29.614340]  kasan_report+0x8a/0x190
+[   29.614628]  ? kmemdup+0x30/0x40
+[   29.614888]  kasan_check_range+0x14d/0x1d0
+[   29.615213]  memcpy+0x20/0x60
+[   29.615454]  kmemdup+0x30/0x40
+[   29.615700]  lgdt3306a_probe+0x52/0x310
+[   29.616339]  i2c_device_probe+0x951/0xa90
+
+Link: https://lore.kernel.org/linux-media/20220405095018.3993578-1-zheyuma97@gmail.com
+Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
+Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/dvb-frontends/lgdt3306a.c |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/media/dvb-frontends/lgdt3306a.c
++++ b/drivers/media/dvb-frontends/lgdt3306a.c
+@@ -2176,6 +2176,11 @@ static int lgdt3306a_probe(struct i2c_cl
+       struct dvb_frontend *fe;
+       int ret;
+ 
++      if (!client->dev.platform_data) {
++              dev_err(&client->dev, "platform data is mandatory\n");
++              return -EINVAL;
++      }
++
+       config = kmemdup(client->dev.platform_data,
+                        sizeof(struct lgdt3306a_config), GFP_KERNEL);
+       if (config == NULL) {

diff --git a/queue-6.9/series b/queue-6.9/series
index ca19e18619d4a90762de56ff20371ee2fe50e84c..6ea20228e577057a193a2cc9cb5f3c0966ecc470 100644 (file)
--- a/queue-6.9/series
+++ b/queue-6.9/series
@@ -4,3 +4,5 @@ afs-don-t-cross-.backup-mountpoint-from-backup-volume.patch
 erofs-avoid-allocating-deflate-streams-before-mounting.patch
 x86-topology-amd-evaluate-smt-in-cpuid-leaf-0x8000001e-only-on-family-0x17-and-greater.patch
 vxlan-fix-regression-when-dropping-packets-due-to-invalid-src-addresses.patch
+f2fs-fix-to-do-sanity-check-on-i_xattr_nid-in-sanity_check_inode.patch
+media-lgdt3306a-add-a-check-against-null-pointer-def.patch