From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 04/11] avcodec/aac/aacdec_usac: Dont leave invalid max_sfb in the context
Date: Sat, 20 Jul 2024 02:52:34 +0200
Message-ID: <20240720005241.726089-4-michael@niedermayer.cc> (raw)
In-Reply-To: <20240720005241.726089-1-michael@niedermayer.cc>
Fixes: out of array read
Fixes: 70363/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-6723855293415424.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/aac/aacdec_usac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavcodec/aac/aacdec_usac.c b/libavcodec/aac/aacdec_usac.c
index 32b3c534bf1..1b79d19a30f 100644
--- a/libavcodec/aac/aacdec_usac.c
+++ b/libavcodec/aac/aacdec_usac.c
@@ -834,6 +834,7 @@ static int setup_sce(AACDecContext *ac, SingleChannelElement *sce,
"Number of scalefactor bands in group (%d) "
"exceeds limit (%d).\n",
ics->max_sfb, ics->num_swb);
+ ics->max_sfb = 0;
return AVERROR(EINVAL);
}
--
2.45.2
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next prev parent reply other threads:[~2024-07-20 0:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-20 0:52 [FFmpeg-devel] [PATCH 01/11] avcodec/alsdec: Clear shift_value Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 02/11] avcodec/proresdec: Consider negative bits left Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 03/11] avcodec/hevc/hevcdec: avoid signed shifts with lt_idx_sps Michael Niedermayer
2024-07-20 0:52 ` Michael Niedermayer [this message]
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 05/11] avcodec/aac/aacdec_lpd: Check kv indec Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 06/11] avcodec/vaapi_encode: Check hwctx Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 07/11] avcodec/osq: avoid using too large numbers for shifts and integers in update_residue_parameter() Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 08/11] avcodec/osq: fix integer overflow when applying factor Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 09/11] avcodec/cfhdenc: Allocate more space Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 10/11] avcodec/cfhdenc: Height of 16 is not supported Michael Niedermayer
2024-07-20 0:52 ` [FFmpeg-devel] [PATCH 11/11] avcodec/hdrenc: Allocate more space Michael Niedermayer
2024-07-23 18:37 ` [FFmpeg-devel] [PATCH 01/11] avcodec/alsdec: Clear shift_value Michael Niedermayer
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