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authorMichael Niedermayer <michael@niedermayer.cc>2021-06-21 23:59:04 +0300
committerMichael Niedermayer <michael@niedermayer.cc>2021-10-06 14:54:16 +0300
commit81bddb185998f421285ce288eeed8285cc4dd641 (patch)
tree18d66e220d207b61d8ff1ce3b2dbec4c59fe5292 /libavcodec
parentf806412b005483bf02a7224dd3c90a88551e82a7 (diff)
avcodec/cpia: Fix missing src_size update
Fixes: out of array read Fixes: 35210/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CPIA_fuzzer-5669199688105984 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit cea05864e65db9a2dc8af82b2c63fb8f03c5f876) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/cpia.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c
index f6d7332606..1be47cf5d2 100644
--- a/libavcodec/cpia.c
+++ b/libavcodec/cpia.c
@@ -111,6 +111,7 @@ static int cpia_decode_frame(AVCodecContext *avctx,
// Read line length, two byte little endian
linelength = AV_RL16(src);
src += 2;
+ src_size -= 2;
if (src_size < linelength) {
frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM;