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Tom Rix ae3c09e346 selinux: fix double free
commit 65de50969a upstream.

Clang's static analysis tool reports these double free memory errors.

security/selinux/ss/services.c:2987:4: warning: Attempt to free released memory [unix.Malloc]
                        kfree(bnames[i]);
                        ^~~~~~~~~~~~~~~~
security/selinux/ss/services.c:2990:2: warning: Attempt to free released memory [unix.Malloc]
        kfree(bvalues);
        ^~~~~~~~~~~~~~

So improve the security_get_bools error handling by freeing these variables
and setting their return pointers to NULL and the return len to 0

Cc: stable@vger.kernel.org
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-24 17:50:48 +02:00
..
apparmor apparmor: fix nnp subset test for unconfined 2020-06-24 17:50:20 +02:00
integrity ima: Set again build_ima_appraise variable 2020-06-22 09:31:17 +02:00
keys mm: add kvfree_sensitive() for freeing sensitive data objects 2020-06-17 16:40:23 +02:00
loadpin proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
lockdown lockdown: Allow unprivileged users to see lockdown status 2020-06-22 09:30:53 +02:00
safesetid LSM: SafeSetID: Stop releasing uninitialized ruleset 2019-09-17 11:27:05 -07:00
selinux selinux: fix double free 2020-06-24 17:50:48 +02:00
smack Smack: slab-out-of-bounds in vsscanf 2020-06-17 16:40:36 +02:00
tomoyo tomoyo: Use atomic_t for statistics counter 2020-02-05 21:22:41 +00:00
yama proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
Kconfig Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
Kconfig.hardening meminit fix 2019-07-28 12:33:15 -07:00
Makefile security: Add a static lockdown policy LSM 2019-08-19 21:54:15 -07:00
commoncap.c exec: Always set cap_ambient in cap_bprm_set_creds 2020-06-03 08:21:23 +02:00
device_cgroup.c docs: cgroup-v1: add it to the admin-guide book 2019-07-15 11:03:02 -03:00
inode.c Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
lsm_audit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
min_addr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
security.c Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00