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Roberto Sassu 801863f634 evm: Check size of security.evm before using it 
commit 455b6c9112 upstream.

This patch checks the size for the EVM_IMA_XATTR_DIGSIG and
EVM_XATTR_PORTABLE_DIGSIG types to ensure that the algorithm is read from
the buffer returned by vfs_getxattr_alloc().

Cc: stable@vger.kernel.org # 4.19.x
Fixes: 5feeb61183 ("evm: Allow non-SHA1 digital signatures")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-01 12:01:05 +01:00
..
apparmor apparmor: ensure that dfa state tables have entries 2020-07-22 09:33:05 +02:00
integrity evm: Check size of security.evm before using it 2020-11-01 12:01:05 +01:00
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: sel_avc_get_stat_idx should increase position index 2020-10-01 13:17:32 +02:00
smack Smack: prevent underflow in smk_set_cipso() 2020-08-19 08:16:16 +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
commoncap.c exec: Always set cap_ambient in cap_bprm_set_creds 2020-06-03 08:21:23 +02:00
device_cgroup.c device_cgroup: Fix RCU list debugging warning 2020-10-01 13:18:13 +02:00
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 '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
lsm_audit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile security: Add a static lockdown policy LSM 2019-08-19 21:54:15 -07:00
min_addr.c
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