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
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apparmor	apparmor: fix error check	2021-11-18 14:04:22 +01:00
bpf
integrity	evm: mark evm_fixmode as __ro_after_init	2021-11-18 14:03:46 +01:00
keys
loadpin
lockdown
safesetid
selinux	selinux: fix NULL-pointer dereference when hashtab allocation fails	2021-11-26 10:39:21 +01:00
smack	smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi	2021-11-18 14:04:10 +01:00
tomoyo
yama
commoncap.c
device_cgroup.c
inode.c
Kconfig	fortify: Explicitly disable Clang support	2021-11-21 13:46:35 +01:00
Kconfig.hardening
lsm_audit.c
Makefile
min_addr.c
security.c	binder: use cred instead of task for selinux checks	2021-11-18 14:03:36 +01:00