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| author | James Almer <jamrial@gmail.com> | 2018-07-28 00:51:57 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2018-07-28 22:44:14 -0300 |
| commit | bc2301429e9c779237e43acf913331af018211f2 (patch) | |
| tree | 4660b85e82da36b27acfc5a9efe16ce4df7a5204 /libavcodec | |
| parent | 8df2c7dde6af3e748447ac313947388e6887178a (diff) | |
| download | ffmpeg-bc2301429e9c779237e43acf913331af018211f2.tar.gz | |
avcodec/bitstream_filters: check the input argument of av_bsf_get_by_name() for NULL
Fixes crashes like "ffmpeg -h bsf" caused by passing NULL to strcmp()
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 3258cc6507a2012d54889ce5f8efbde7e81d927d)
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/bitstream_filters.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/bitstream_filters.c b/libavcodec/bitstream_filters.c index ce34de640d..ace2a1e01f 100644 --- a/libavcodec/bitstream_filters.c +++ b/libavcodec/bitstream_filters.c @@ -62,6 +62,9 @@ const AVBitStreamFilter *av_bsf_get_by_name(const char *name) { int i; + if (!name) + return NULL; + for (i = 0; bitstream_filters[i]; i++) { const AVBitStreamFilter *f = bitstream_filters[i]; if (!strcmp(f->name, name)) |