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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-06-10 21:35:43 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-06 14:54:16 +0300 |
| commit | b65f9e606a0811439195dac6006284c0cc6cab40 (patch) | |
| tree | ccc7bcd0053c18450cd2bbc305b799b1205c8cab /libavformat | |
| parent | 2955147e93f0aab6b13f38f240e1787c69670e78 (diff) | |
avformat/rpl: The associative law doesnt hold for signed integers in C
Add () to avoid undefined behavior
Fixes: signed integer overflow: 9223372036854775790 + 57 cannot be represented in type 'long'
Fixes: 34983/clusterfuzz-testcase-minimized-ffmpeg_dem_RPL_fuzzer-5765822923538432
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 480f11bdd713c15e4964093be7ef0adf5b619cc1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/rpl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/rpl.c b/libavformat/rpl.c index 22508898ba..61009b55c0 100644 --- a/libavformat/rpl.c +++ b/libavformat/rpl.c @@ -103,7 +103,7 @@ static AVRational read_fps(const char* line, int* error) // Truncate any numerator too large to fit into an int64_t if (num > (INT64_MAX - 9) / 10 || den > INT64_MAX / 10) break; - num = 10 * num + *line - '0'; + num = 10 * num + (*line - '0'); den *= 10; } if (!num) |