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authorManfred Spraul <manfred@colorfullife.com>2017-07-12 14:35:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-12 16:26:02 -0700
commit2ec55f8024db859d70f14c26e91ca044328dd50d (patch)
tree8e37263fd21347b0f173d38697f856547ea829b7 /ipc/shm.c
parentc3f6fb6fe4e638a58eae558cb209c463cd46c2fc (diff)
download96b-common-2ec55f8024db859d70f14c26e91ca044328dd50d.tar.gz
ipc/sem.c: avoid ipc_rcu_putref for failed ipc_addid()
Loosely based on a patch from Kees Cook <keescook@chromium.org>: - id and retval can be merged - if ipc_addid() fails, then use call_rcu() directly. The difference is that call_rcu is used for failed ipc_addid() calls, to continue to guaranteed an rcu delay for security_sem_free(). Link: http://lkml.kernel.org/r/20170525185107.12869-14-manfred@colorfullife.com Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Cc: Kees Cook <keescook@chromium.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/shm.c')
0 files changed, 0 insertions, 0 deletions