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smacker: Avoid integer overflow when allocating packets
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 710b0e2702
)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
parent
057f655dc6
commit
47bb4d888e
@ -327,7 +327,7 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
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}
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flags >>= 1;
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}
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if (frame_size < 0)
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if (frame_size < 0 || frame_size >= INT_MAX/2)
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return AVERROR_INVALIDDATA;
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if (av_new_packet(pkt, frame_size + 769))
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return AVERROR(ENOMEM);
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