avcodec/svq3: Fix overflow in svq3_add_idct_c()
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 18 Sep 2017 15:03:55 +0000 (17:03 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 31 Jan 2018 21:56:14 +0000 (22:56 +0100)
commita2d129a841f5f2393196f80df3781ac28607738b
treea038e3a07b48a088be2fe54435a7dd6cff09af93
parentfd0b42344a7a96f9401c4e1682bd9ded413d0607
avcodec/svq3: Fix overflow in svq3_add_idct_c()

Fixes: runtime error: signed integer overflow: 2147392585 + 524288 cannot be represented in type 'int'
Fixes: 3348/clusterfuzz-testcase-minimized-4809500517203968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2c933c51687db958d8045d25ed87848342e869f6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/svq3.c