PR #24474 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24474 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24474.patch
Fixes: read of uninitialized memory Fixes: YwR11Eee5EpN Found-by: zhang xingxing >From a3389a44621a4fc4e9e5f543b05175c3b28a75f9 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer <[email protected]> Date: Mon, 14 Sep 2026 02:11:16 +0200 Subject: [PATCH] avcodec/flashsv: require two bytes for a 15-bit pixel in decode_hybrid Fixes: read of uninitialized memory Fixes: YwR11Eee5EpN Found-by: zhang xingxing --- libavcodec/flashsv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c index ba5c995006..7503007d73 100644 --- a/libavcodec/flashsv.c +++ b/libavcodec/flashsv.c @@ -85,6 +85,8 @@ static int decode_hybrid(const uint8_t *sptr, const uint8_t *sptr_end, uint8_t * if (sptr >= sptr_end) return AVERROR_INVALIDDATA; if (*sptr & 0x80) { + if (sptr + 2 > sptr_end) + return AVERROR_INVALIDDATA; /* 15-bit color */ unsigned c = AV_RB16(sptr) & ~0x8000; unsigned b = c & 0x1F; -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
