[FFmpeg-cvslog] avformat/nistspheredec: Clear buffer

[Michael Niedermayer]

ffmpeg | branch: release/4.3 | Michael Niedermayer <michael at niedermayer.cc> | Sun Nov  3 20:43:21 2024 +0100| [affeb1dde17c1d0350df726f7371a31ad4a66a1d] | committer: Michael Niedermayer

avformat/nistspheredec: Clear buffer

Fixes: use-of-uninitialized-value
Fixes: 42537627/clusterfuzz-testcase-minimized-fuzzer_protocol_memory-6515855798632448-cut

Found-by: ossfuzz
Reported-by: Kacper Michajlow
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 898f6582eb51bf77b1f88e8f55eab67ee6ee13b8)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=affeb1dde17c1d0350df726f7371a31ad4a66a1d
---

 libavformat/nistspheredec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/nistspheredec.c b/libavformat/nistspheredec.c
index 78e938da10..b2cbbfefaa 100644
--- a/libavformat/nistspheredec.c
+++ b/libavformat/nistspheredec.c
@@ -34,7 +34,7 @@ static int nist_probe(const AVProbeData *p)
 
 static int nist_read_header(AVFormatContext *s)
 {
-    char buffer[256], coding[32] = "pcm", format[32] = "01";
+    char buffer[256]= {0}, coding[32] = "pcm", format[32] = "01";
     int bps = 0, be = 0;
     int32_t header_size = -1;
     AVStream *st;