On Tue, Mar 17, 2020 at 11:13:22AM +0800, BYHYKCHKIO WEIINZWLM wrote: > Hello, > > I have a vulnerability about FFmpage to report. > > Regarding the sws_scale function in the swscale.c file, when the parameter > SwsContext is 0, the program access address is abnormal, causing the > program to crash.
sws_scale() documents the SwsContext parameter as "the scaling context previously created ..." 0 is not a scaling context. So if you pass 0 as context your code is buggy. If other code does that then that code is buggy. Thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Opposition brings concord. Out of discord comes the fairest harmony. -- Heraclitus
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