This is an automated email from the git hooks/post-receive script.
Git pushed a commit to branch master
in repository ffmpeg.
The following commit(s) were added to refs/heads/master by this push:
new 360a4025fb avcodec/rv60dec: check last_size
360a4025fb is described below
commit 360a4025fb2582d52d871ea2129d6b659598bb49
Author: Michael Niedermayer <[email protected]>
AuthorDate: Mon Feb 16 01:58:01 2026 +0100
Commit: michaelni <[email protected]>
CommitDate: Thu Feb 19 22:39:35 2026 +0000
avcodec/rv60dec: check last_size
Fixes: signed integer overflow: 1878131215 + 2013265920 cannot be
represented in type 'int'
Fixes:
472729732/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-4893818005815296
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/rv60dec.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c
index 76caa6a361..2a7c5c1147 100644
--- a/libavcodec/rv60dec.c
+++ b/libavcodec/rv60dec.c
@@ -395,14 +395,14 @@ static int read_frame_header(RV60Context *s,
GetBitContext *gb, int * width, int
static int read_slice_sizes(RV60Context *s, GetBitContext *gb)
{
int nbits = get_bits(gb, 5) + 1;
- int last_size;
+ int64_t last_size;
for (int i = 0; i < s->cu_height; i++)
s->slice[i].sign = get_bits1(gb);
s->slice[0].size = last_size = get_bits_long(gb, nbits);
- if (last_size < 0)
+ if (last_size < 0 || last_size > INT32_MAX)
return AVERROR_INVALIDDATA;
for (int i = 1; i < s->cu_height; i++) {
@@ -411,7 +411,7 @@ static int read_slice_sizes(RV60Context *s, GetBitContext
*gb)
last_size += diff;
else
last_size -= diff;
- if (last_size <= 0)
+ if (last_size <= 0 || last_size > INT32_MAX)
return AVERROR_INVALIDDATA;
s->slice[i].size = last_size;
}
_______________________________________________
ffmpeg-cvslog mailing list -- [email protected]
To unsubscribe send an email to [email protected]
