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(parent: 6606de0) | patch
ipc: shm: fix information leak to userland
authorVasiliy Kulikov <segooon@gmail.com>
Sat, 30 Oct 2010 14:22:49 +0000 (18:22 +0400)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 9 Dec 2010 21:26:43 +0000 (13:26 -0800)
commitb84f1092385101cc432d2afce0bd52ce4d643018
treee3f2f2cfa7b98e63ea9072d5c7664d8aa0cb72b0tree | snapshot
parent6606de00cc2053b821d7db0ab22aaa8af2ea6143commit | diff
ipc: shm: fix information leak to userland

commit 3af54c9bd9e6f14f896aac1bb0e8405ae0bc7a44 upstream.

The shmid_ds structure is copied to userland with shm_unused{,2,3}
fields unitialized.  It leads to leaking of contents of kernel stack
memory.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ipc/shm.c diff | blob | history
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