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FROMGIT: media: venus: hfi_parser: add check to avoid out of bound access

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There is a possibility that init_codecs is invoked multiple times during
manipulated payload from video firmware. In such case, if codecs_count
can get incremented to value more than MAX_CODEC_NUM, there can be OOB
access. Reset the count so that it always starts from beginning.

Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>

(cherry picked from commit 172bf5a9ef70a399bb227809db78442dc01d9e48 https://gitlab.freedesktop.org/linux-media/media-committers.git master)
Change-Id: I6216e773af65082e4775b415789ffd549e0bed2d
Signed-off-by: Gaviraju Doddabettahalli Bettegowda <quic_gdoddabe@quicinc.com>
This commit is contained in:
Gaviraju Doddabettahalli Bettegowda
2025-03-20 19:35:37 +05:30
committed by Treehugger Robot
parent 9b6f22f166
commit 213e49cfe7
1 changed files with 2 additions and 0 deletions
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drivers/media/platform/qcom/venus/hfi_parser.c
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@@ -19,6 +19,8 @@ static void init_codecs(struct venus_core *core)
struct hfi_plat_caps *caps = core->caps, *cap;
unsigned long bit;
core->codecs_count = 0;
if (hweight_long(core->dec_codecs) + hweight_long(core->enc_codecs) > MAX_CODEC_NUM)
return;