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| author | Shixiong Ou <oushixiong@kylinos.cn> | 2026-07-29 16:45:17 +0800 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2026-08-13 15:47:50 +0200 |
| commit | 60baa179ed1333535f6e2da4133511db55278ee4 (patch) | |
| tree | e9e9469dc9dc9af56822a75b7c6bd9598b3c53f5 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 921ac6cb066d09b5765db892d0db0ffaffa98767 (diff) | |
drm/log: Fix out-of-bounds read on empty message length
drm_log_draw_kmsg_record() accesses s[len - 1] to strip the trailing
newline, but len is unsigned int. If len is 0, the subtraction wraps
to UINT_MAX, causing an out-of-bounds read.
Add an early return when len is 0.
Fixes: 25e2c2a3eff5 ("drm/log: Color the timestamp, to improve readability")
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260729084520.688087-1-oushixiong1025@163.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions