https://github.com/torvalds/linux
Revision 1c9fec470b81ca5e89391c20a11ead31a1e9314b authored by Kees Cook on 20 October 2017, 14:36:05 UTC, committed by Linus Torvalds on 20 October 2017, 19:32:54 UTC
As pointed out by Linus and David, the earlier waitid() fix resulted in
a (currently harmless) unbalanced user_access_end() call.  This fixes it
to just directly return EFAULT on access_ok() failure.

Fixes: 96ca579a1ecc ("waitid(): Add missing access_ok() checks")
Acked-by: David Daney <david.daney@cavium.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 9a27ded
History
Tip revision: 1c9fec470b81ca5e89391c20a11ead31a1e9314b authored by Kees Cook on 20 October 2017, 14:36:05 UTC
waitid(): Avoid unbalanced user_access_end() on access_ok() error
Tip revision: 1c9fec4
File Mode Size
Documentation
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.3 KB
.mailmap -rw-r--r-- 8.2 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 96.1 KB
Kbuild -rw-r--r-- 2.2 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 420.4 KB
Makefile -rw-r--r-- 58.4 KB
README -rw-r--r-- 722 bytes

README

back to top