waitid(): Add missing access_ok() checks

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Adds missing access_ok() checks.

CVE-2017-5123

Reported-by: Chris Salls <chrissalls5@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: 4c48abe91b ("waitid(): switch copyout of siginfo to unsafe_put_user()")
Cc: stable@kernel.org # 4.13
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Kees Cook 2017-10-09 11:36:52 -07:00 • committed by Linus Torvalds

parent ff33952e4d

commit 96ca579a1e

1 changed files with 6 additions and 0 deletions

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6

kernel/exit.c

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