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| author |  Kees Cook <keescook@chromium.org>
| 2023-09-22 10:50:42 -0700 |
|---|---|---|
| committer |  Takashi Iwai <tiwai@suse.de>
| 2023-09-23 12:36:45 +0200 |
| commit | 81420faff0eb8603c6d5e5267455bddf70f20a95 (patch) | |
| tree | beee0248ebd8dca76fecacfb914ef91320b96837 /sound/pci | |
| parent | ALSA: hda: cs35l41: Add read-only ALSA control for forced mute (diff) | |
| download | linux-81420faff0eb8603c6d5e5267455bddf70f20a95.tar.gz linux-81420faff0eb8603c6d5e5267455bddf70f20a95.tar.bz2 linux-81420faff0eb8603c6d5e5267455bddf70f20a95.zip | |
ALSA: hda: Annotate struct hda_conn_list 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 hda_conn_list.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Cezary Rojewski <cezary.rojewski@intel.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175042.work.547-kees@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 33af707a65ab..01718b1fc9a7 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -88,7 +88,7 @@ struct hda_conn_list { struct list_head list; int len; hda_nid_t nid; - hda_nid_t conns[]; + hda_nid_t conns[] __counted_by(len); }; /* look up the cached results */ |