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commit c2c45ceca0d0763671aa3f74441e0dcbcea29db5 Author: Michael Niedermayer <[email protected]> AuthorDate: Sat Feb 14 00:26:23 2026 +0100 Commit: Michael Niedermayer <[email protected]> CommitDate: Mon May 4 15:57:10 2026 +0200 avformat/lrcdec: Check ss for finiteness Fixes: negation of -9223372036854775808 cannot be represented in type 'int64_t' (aka 'long'); cast to an unsigned type to negate this value to itself Fixes: 471604230/clusterfuzz-testcase-minimized-ffmpeg_dem_LRC_fuzzer-5474264750030848 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit bce0e221331649a3e937b6fa222ced851bd39b6e) Signed-off-by: Michael Niedermayer <[email protected]> --- libavformat/lrcdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/lrcdec.c b/libavformat/lrcdec.c index f4a879954e..9ee7200ac7 100644 --- a/libavformat/lrcdec.c +++ b/libavformat/lrcdec.c @@ -89,7 +89,7 @@ static int64_t read_ts(const char *p, int64_t *start) return 0; } int ret = sscanf(p, "%2[[-]%"SCNu32":%lf]", prefix, &mm, &ss); - if (ret != 3 || prefix[0] != '[' || ss < 0 || ss > 60) { + if (ret != 3 || prefix[0] != '[' || ss < 0 || ss > 60 || !isfinite(ss)) { return 0; } *start = llrint((mm * 60 + ss) * AV_TIME_BASE); _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
