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authorMichael Niedermayer <[email protected]>2019-05-19 17:42:04 +0200
committerMichael Niedermayer <[email protected]>2019-11-14 23:30:37 +0100
commit0ecde06ee746ca3b785cd200e0af0485b03cf922 (patch)
tree44614eb83a71bc145b3f0ef29ed516bcd5721d31
parent900c0ecaedfed4670cb5f8c4719988557ccbad39 (diff)
avcodec/cpia: Check input size also against linesizes and EOL
Fixes: Timeout (14sec -> 29ms) Fixes: 14733/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CPIA_fuzzer-5707022445576192 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Carl Eugen Hoyos <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 3c0bfa7d1a90a22d5fe8daa415cc689c111562f1) Signed-off-by: Michael Niedermayer <[email protected]>
-rw-r--r--libavcodec/cpia.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c
index 58833b2f26..f6d7332606 100644
--- a/libavcodec/cpia.c
+++ b/libavcodec/cpia.c
@@ -63,7 +63,7 @@ static int cpia_decode_frame(AVCodecContext *avctx,
uint8_t *y, *u, *v, *y_end, *u_end, *v_end;
// Check header
- if ( avpkt->size < FRAME_HEADER_SIZE
+ if ( avpkt->size < FRAME_HEADER_SIZE + avctx->height * 3
|| header[0] != MAGIC_0 || header[1] != MAGIC_1
|| (header[17] != SUBSAMPLE_420 && header[17] != SUBSAMPLE_422)
|| (header[18] != YUVORDER_YUYV && header[18] != YUVORDER_UYVY)