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186edf7e36
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Vratislav Bendel 186edf7e36 selinux: fix double free of cond_list on error paths 
On error path from cond_read_list() and duplicate_policydb_cond_list()
the cond_list_destroy() gets called a second time in caller functions,
resulting in NULL pointer deref.  Fix this by resetting the
cond_list_len to 0 in cond_list_destroy(), making subsequent calls a
noop.

Also consistently reset the cond_list pointer to NULL after freeing.

Cc: stable@vger.kernel.org
Signed-off-by: Vratislav Bendel <vbendel@redhat.com>
[PM: fix line lengths in the description]
Signed-off-by: Paul Moore <paul@paul-moore.com>
2022-02-02 11:02:10 -05:00
..
apparmor lsm: security_task_getsecid_subj() -> security_current_getsecid_subj() 2021-11-22 17:52:47 -05:00
bpf bpf: Implement task local storage 2020-11-06 08:08:37 -08:00
integrity integrity-v5.17 2022-01-11 13:11:10 -08:00
keys security: DH - use KDF implementation from crypto API 2021-11-26 16:25:17 +11:00
landlock landlock: Enable user space to infer supported features 2021-04-22 12:22:11 -07:00
loadpin LSM: Add "contents" flag to kernel_read_file hook 2020-10-05 13:37:03 +02:00
lockdown Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2020-06-02 17:36:24 -07:00
safesetid LSM: SafeSetID: Mark safesetid_initialized as __initdata 2021-06-10 09:52:32 -07:00
selinux selinux: fix double free of cond_list on error paths 2022-02-02 11:02:10 -05:00
smack lsm: security_task_getsecid_subj() -> security_current_getsecid_subj() 2021-11-22 17:52:47 -05:00
tomoyo tomoyo: use hwight16() in tomoyo_domain_quota_is_ok() 2021-12-15 20:13:55 +09:00
yama task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
commoncap.c fs: support mapped mounts of mapped filesystems 2021-12-05 10:28:57 +01:00
device_cgroup.c add missing bpf-cgroup.h includes 2021-12-16 14:57:09 -08:00
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
Kconfig Merge branch 'akpm' (patches from Andrew) 2021-11-06 14:08:17 -07:00
Kconfig.hardening gcc-plugins: Explicitly document purpose and deprecation schedule 2021-10-21 08:41:38 -07:00
lsm_audit.c lsm_audit: avoid overloading the "key" audit field 2021-09-19 22:47:04 -04:00
Makefile security: remove unneeded subdir-$(CONFIG_...) 2021-09-03 08:17:20 +09:00
min_addr.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
security.c security,selinux: remove security_add_mnt_opt() 2021-12-06 13:46:24 -05:00