ffmpeg | branch: release/4.2 | Michael Niedermayer <mich...@niedermayer.cc> | Fri Feb 4 00:44:32 2022 +0100| [c6c36aa97a1e5bf890c55fb4e083699958079940] | committer: Michael Niedermayer
avformat/utils: Fix invalid NULL pointer operation in ff_parse_key_value() Fixes: pointer index expression with base 0x000000000000 overflowed to 0xffffffffffffffff Fixes: 44012/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-5670607746891776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 59328aabd2c789ae053e18a62a20a7addfd4d069) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c6c36aa97a1e5bf890c55fb4e083699958079940 --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index bc07000e15..4067d55fa1 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -4962,7 +4962,7 @@ void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf, key_len = ptr - key; callback_get_buf(context, key, key_len, &dest, &dest_len); - dest_end = dest + dest_len - 1; + dest_end = dest ? dest + dest_len - 1 : NULL; if (*ptr == '\"') { ptr++; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
