eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-06-16 04:32:47 +02:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/jpeg2000dec: Clear header derived variables

Browse Source 
Fixes: NULL pointer dereference

Found-by: Oguzhan Akkaya with AFL++ fuzzing (May 2026)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2026-05-06 02:33:01 +02:00
committed by michaelni
parent 0834dbed1c
commit 6631bbc5d4
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libavcodec/jpeg2000dec.c
+6
View File
@@ -2451,8 +2451,14 @@ static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
memset(s->qntsty, 0, sizeof(s->qntsty));
memset(s->properties, 0, sizeof(s->properties));
memset(&s->poc , 0, sizeof(s->poc));
memset(s->roi_shift, 0, sizeof(s->roi_shift));
s->numXtiles = s->numYtiles = 0;
s->ncomponents = 0;
s->has_ppm = 0;
s->isHT = 0;
s->precision = 0;
s->colour_space = 0;
s->pal8 = 0;
}
static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)