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| author | Kees Cook <keescook@chromium.org> | 2023-09-15 23:03:53 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-10-02 19:48:52 +0300 |
| commit | 694b3b9d7acf771c4289babbe0f810556625b6b3 (patch) | |
| tree | 680487f347151dcf083e13d1ee7d965458b18cda /drivers/md/dm-stripe.c | |
| parent | 6521ba56ca86c19328f956090e367eacee4eb9d1 (diff) | |
| download | linux-694b3b9d7acf771c4289babbe0f810556625b6b3.tar.xz | |
dm: Annotate struct stripe_c with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct stripe_c.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: dm-devel@redhat.com
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230915200352.never.118-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/md/dm-stripe.c')
| -rw-r--r-- | drivers/md/dm-stripe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index e2854a3cbd28..5e70f5ae394d 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -44,7 +44,7 @@ struct stripe_c { /* Work struct used for triggering events*/ struct work_struct trigger_event; - struct stripe stripe[]; + struct stripe stripe[] __counted_by(stripes); }; /* |