From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 2/2] avutil/aes: Silence fuzzer about accessing round_key
Date: Sun, 18 Sep 2022 23:57:04 +0200
Message-ID: <20220918215704.13793-2-michael@niedermayer.cc> (raw)
In-Reply-To: <20220918215704.13793-1-michael@niedermayer.cc>
Fixes: index 32 out of bounds for type 'uint8_t [16]'
Fixes: 51253/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5968304170205184
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavutil/aes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavutil/aes.c b/libavutil/aes.c
index 029d738f870..8f3e04e7c6d 100644
--- a/libavutil/aes.c
+++ b/libavutil/aes.c
@@ -251,7 +251,7 @@ int av_aes_init(AVAES *a, const uint8_t *key, int key_bits, int decrypt)
tk[j][i] ^= sbox[tk[j - 1][i]];
}
- memcpy(a->round_key[0].u8 + t, tk, KC * 4);
+ memcpy((uint8_t*)a->round_key[0].u8 + t, tk, KC * 4);
}
if (decrypt) {
--
2.17.1
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next prev parent reply other threads:[~2022-09-18 21:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-18 21:57 [FFmpeg-devel] [PATCH 1/2] avcodec/mjpegdec: Check for unsupported bayer case Michael Niedermayer
2022-09-18 21:57 ` Michael Niedermayer [this message]
2022-09-21 9:44 ` Michael Niedermayer
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