From 151f83584eeb1912c8bdcd0c1ab1296e8664a0de Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 12 Feb 2022 22:02:13 +0100 Subject: 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 --- libavcodec/jpeglsdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c index 6ca723f797..76fe6f3636 100644 --- a/libavcodec/jpeglsdec.c +++ b/libavcodec/jpeglsdec.c @@ -200,6 +200,8 @@ 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; -- cgit v1.2.3