Xiu Jianfeng fb59353157 Revert "evm: Fix memleak in init_desc" ... commit 51dd64bb99 upstream. This reverts commit ccf11dbaa0. Commit ccf11dbaa0 ("evm: Fix memleak in init_desc") said there is memleak in init_desc. That may be incorrect, as we can see, tmp_tfm is saved in one of the two global variables hmac_tfm or evm_tfm[hash_algo], then if init_desc is called next time, there is no need to alloc tfm again, so in the error path of kmalloc desc or crypto_shash_init(desc), It is not a problem without freeing tmp_tfm. And also that commit did not reset the global variable to NULL after freeing tmp_tfm and this makes *tfm a dangling pointer which may cause a UAF issue. Reported-by: Guozihua (Scott) <guozihua@huawei.com> Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-07-21 21:24:14 +02:00
..
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
evm.h	evm: Verify portable signatures against all protected xattrs	2021-06-01 15:17:31 -04:00
evm_crypto.c	Revert "evm: Fix memleak in init_desc"	2022-07-21 21:24:14 +02:00
evm_main.c	EVM: fix the evm= __setup handler return value	2022-04-08 14:23:06 +02:00
evm_posix_acl.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
evm_secfs.c	evm: Don't return an error in evm_write_xattrs() if audit is not enabled	2021-06-03 10:03:40 -04:00