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authorwm4 <nfxjfg@googlemail.com>2018-03-08 04:52:36 +0100
committerwm4 <nfxjfg@googlemail.com>2018-03-18 12:36:24 +0100
commitb7d842c554b1fec051ca906f446f7311139c5725 (patch)
tree4b47cc1573159597bdd91cd9e2450bcab98de754 /libavfilter/vf_scale_npp.c
parentc0687acbf6094053834af6a20e9d71b455842c8c (diff)
downloadffmpeg-b7d842c554b1fec051ca906f446f7311139c5725.tar.gz
http: fix potentially dangerous whitespace skipping code
If the string consists entirely of whitespace, this could in theory continue to write '\0' before the start of the memory allocation. In practice, it didn't really happen: the generic HTTP header parsing code already skips leading whitespaces, so the string is either empty, or consists a non-whitespace. (The generic code and the cookie code actually have different ideas about what bytes are whitespace: the former uses av_isspace(), the latter uses WHITESPACES. Fortunately, av_isspace() is a super set of the http.c specific WHITESPACES, so there's probably no case where the above assumption could have been broken.)
Diffstat (limited to 'libavfilter/vf_scale_npp.c')
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