]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
kmsan: compiler_types: declare __no_sanitize_or_inline
authorAlexander Potapenko <glider@google.com>
Fri, 26 Apr 2024 09:16:22 +0000 (11:16 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 17 May 2024 09:56:20 +0000 (11:56 +0200)
commit50a436d05fdc467ec7d43e9f2582c99ed9e4d613
tree7cbf4ebdad0a517b1c27f2fdbd5c987ac688af47
parentb56d4991cfd9f436e1bad3e56e5165c227656f31
kmsan: compiler_types: declare __no_sanitize_or_inline

commit 90d1f14cbb9ddbfc532e2da13bf6e0ed8320e792 upstream.

It turned out that KMSAN instruments READ_ONCE_NOCHECK(), resulting in
false positive reports, because __no_sanitize_or_inline enforced inlining.

Properly declare __no_sanitize_or_inline under __SANITIZE_MEMORY__, so
that it does not __always_inline the annotated function.

Link: https://lkml.kernel.org/r/20240426091622.3846771-1-glider@google.com
Fixes: 5de0ce85f5a4 ("kmsan: mark noinstr as __no_sanitize_memory")
Signed-off-by: Alexander Potapenko <glider@google.com>
Reported-by: syzbot+355c5bb8c1445c871ee8@syzkaller.appspotmail.com
Link: https://lkml.kernel.org/r/000000000000826ac1061675b0e3@google.com
Cc: <stable@vger.kernel.org>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/compiler_types.h