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new ee8cbd7dbc avcodec/hevc/mvs: zero the merge candidate list
ee8cbd7dbc is described below
commit ee8cbd7dbce9b293905f3088192e4b43ab00c33a
Author: Charly Morgand-Poyac <[email protected]>
AuthorDate: Wed Oct 14 23:49:12 2026 +0200
Commit: Kacper Michajłow <[email protected]>
CommitDate: Wed Oct 14 23:41:01 2026 +0000
avcodec/hevc/mvs: zero the merge candidate list
mvf_run_equal() reads padding the merge candidates left uninitialized.
Fixes: 05c6ee22be ("lavc/hevcdec: skip boundary strength computation for
identical MvFields")
Reported-by: Kacper Michajłow <[email protected]>
Signed-off-by: Charly Morgand-Poyac <[email protected]>
---
libavcodec/hevc/mvs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/hevc/mvs.c b/libavcodec/hevc/mvs.c
index 61c9e4e086..937c7cf753 100644
--- a/libavcodec/hevc/mvs.c
+++ b/libavcodec/hevc/mvs.c
@@ -488,7 +488,7 @@ void ff_hevc_luma_mv_merge_mode(HEVCLocalContext *lc, const
HEVCPPS *pps,
const HEVCContext *const s = lc->parent;
int singleMCLFlag = 0;
int nCS = 1 << log2_cb_size;
- MvField mergecand_list[MRG_MAX_NUM_CANDS];
+ MvField mergecand_list[MRG_MAX_NUM_CANDS] = { 0 };
int nPbW2 = nPbW;
int nPbH2 = nPbH;
--
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