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The following commit(s) were added to refs/heads/master by this push:
new bce0e22133 avformat/lrcdec: Check ss for finiteness
bce0e22133 is described below
commit bce0e221331649a3e937b6fa222ced851bd39b6e
Author: Michael Niedermayer <[email protected]>
AuthorDate: Sat Feb 14 00:26:23 2026 +0100
Commit: michaelni <[email protected]>
CommitDate: Tue Feb 17 13:49:41 2026 +0000
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]>
---
libavformat/lrcdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/lrcdec.c b/libavformat/lrcdec.c
index b323c59f59..1f96305693 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 = av_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);
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