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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-30 19:37:52 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-10 12:28:29 +0100 |
| commit | 980900d991606cbc3747b37d6e83c7aae98cbecc (patch) | |
| tree | 4dd216e3186fb951c1fafa8c5600f677aaf68910 /libavcodec/jpeglsdec.c | |
| parent | 25f240fcb398eb499ca4b70c026a8bb9f2a32731 (diff) | |
avcodec/jpeglsdec: Fix k=16 in ls_get_code_regular()
Fixes: Timeout
Fixes: left shift of 33046 by 16 places cannot be represented in type 'int'
Fixes: 29258/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-4889231489105920
Fixes: 29515/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-6161940391002112
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/jpeglsdec.c')
| -rw-r--r-- | libavcodec/jpeglsdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c index ef97bdb297..69980eaa49 100644 --- a/libavcodec/jpeglsdec.c +++ b/libavcodec/jpeglsdec.c @@ -149,7 +149,7 @@ static inline int ls_get_code_regular(GetBitContext *gb, JLSState *state, int Q) { int k, ret; - for (k = 0; (state->N[Q] << k) < state->A[Q]; k++) + for (k = 0; ((unsigned)state->N[Q] << k) < state->A[Q]; k++) ; #ifdef JLS_BROKEN |