Ondrej Mosnacek b17dd53cac selinux: fix NULL-pointer dereference when hashtab allocation fails ... commit dc27f3c5d10c58069672215787a96b4fae01818b upstream. When the hash table slot array allocation fails in hashtab_init(), h->size is left initialized with a non-zero value, but the h->htable pointer is NULL. This may then cause a NULL pointer dereference, since the policydb code relies on the assumption that even after a failed hashtab_init(), hashtab_map() and hashtab_destroy() can be safely called on it. Yet, these detect an empty hashtab only by looking at the size. Fix this by making sure that hashtab_init() always leaves behind a valid empty hashtab when the allocation fails. Cc: stable@vger.kernel.org Fixes: 03414a49ad ("selinux: do not allocate hashtabs dynamically") Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-26 10:39:21 +01:00
..
include	selinux: add proper NULL termination to the secclass_map permissions	2021-05-14 09:49:59 +02:00
ss	selinux: fix NULL-pointer dereference when hashtab allocation fails	2021-11-26 10:39:21 +01:00
.gitignore
avc.c	selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC	2021-07-19 09:44:49 +02:00
hooks.c	binder: use cred instead of task for selinux checks	2021-11-18 14:03:36 +01:00
ibpkey.c	selinux: Fix error return code in sel_ib_pkey_sid_slow()	2020-11-12 20:16:09 -05:00
Kconfig
Makefile
netif.c
netlabel.c
netlink.c
netnode.c
netport.c
nlmsgtab.c
selinuxfs.c	selinux: fix variable scope issue in live sidtab conversion	2021-03-30 14:31:53 +02:00
status.c
xfrm.c