ffmpeg | branch: release/4.1 | Michael Niedermayer <mich...@niedermayer.cc> | 
Sat Feb 12 22:02:13 2022 +0100| [b6061e3d8e8be72a9f6293032427738865179eec] | 
committer: Michael Niedermayer

avcodec/jpeglsdec: Check get_ur_golomb_jpegls() for error

Fixes: Timeout
Fixes: Invalid shift
Fixes: 
44548/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-556487680891289
Fixes: 
44569/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AMV_fuzzer-6302543246917632
Fixes: 
44570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THP_fuzzer-4550196556595200
Fixes: 
44592/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5651610385121280
Fixes: 
44571/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5094698987945984
Fixes: 
44607/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5341352013987840

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
(cherry picked from commit 151f83584eeb1912c8bdcd0c1ab1296e8664a0de)
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b6061e3d8e8be72a9f6293032427738865179eec
---

 libavcodec/jpeglsdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 0cb40cc0f1..11b2ff71a8 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -195,6 +195,8 @@ static inline int ls_get_code_runterm(GetBitContext *gb, 
JLSState *state,
 #endif
     ret = get_ur_golomb_jpegls(gb, k, state->limit - limit_add - 1,
                                state->qbpp);
+    if (ret < 0)
+        return -0x10000;
 
     /* decode mapped error */
     map = 0;

_______________________________________________
ffmpeg-cvslog mailing list
ffmpeg-cvslog@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog

To unsubscribe, visit link above, or email
ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".

Reply via email to