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Tetsuo Handa 2edeaa34a6 CRED: Fix BUG() upon security_cred_alloc_blank() failure ... In cred_alloc_blank() since 2.6.32, abort_creds(new) is called with new->security == NULL and new->magic == 0 when security_cred_alloc_blank() returns an error. As a result, BUG() will be triggered if SELinux is enabled or CONFIG_DEBUG_CREDENTIALS=y. If CONFIG_DEBUG_CREDENTIALS=y, BUG() is called from __invalid_creds() because cred->magic == 0. Failing that, BUG() is called from selinux_cred_free() because selinux_cred_free() is not expecting cred->security == NULL. This does not affect smack_cred_free(), tomoyo_cred_free() or apparmor_cred_free(). Fix these bugs by (1) Set new->magic before calling security_cred_alloc_blank(). (2) Handle null cred->security in creds_are_invalid() and selinux_cred_free(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		14 years ago
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include	…
ss	…
.gitignore	…
Kconfig	…
Makefile	…
avc.c	…
exports.c	…
hooks.c	CRED: Fix BUG() upon security_cred_alloc_blank() failure	14 years ago
netif.c	…
netlabel.c	…
netlink.c	…
netnode.c	…
netport.c	…
nlmsgtab.c	…
selinuxfs.c	…
xfrm.c	…