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authorDenys Vlasenko <vda.linux@googlemail.com>2016-09-28 23:02:57 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2016-09-28 23:02:57 +0200
commit8e2bc47d62d48687f681855d4b086c758ae745c4 (patch)
tree5666b8f66ea374d7a7716df9eda2f184f0749914 /coreutils/fold.c
parent7ee7c6fc20d3b94c257f829dece097ff339895ee (diff)
downloadbusybox-8e2bc47d62d48687f681855d4b086c758ae745c4.tar.gz
ash: [EVAL] Fix use-after-free in dotrap/evalstring
From upstream: [EVAL] Fix use-after-free in dotrap/evalstring The function dotrap calls evalstring using the stored trap string. If evalstring then unsets that exact trap string then we will end up using freed memory. This patch fixes it by making evalstring always duplicate the string before using it. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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