Jiawei Ye 2749749afa smackfs: Use rcu_assign_pointer() to ensure safe assignment in smk_set_cipso ... In the `smk_set_cipso` function, the `skp->smk_netlabel.attr.mls.cat` field is directly assigned to a new value without using the appropriate RCU pointer assignment functions. According to RCU usage rules, this is illegal and can lead to unpredictable behavior, including data inconsistencies and impossible-to-diagnose memory corruption issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the assignment is now done using rcu_assign_pointer(), which ensures that the pointer assignment is done safely, with the necessary memory barriers and synchronization. This change prevents potential RCU dereference issues by ensuring that the `cat` field is safely updated while still adhering to RCU's requirements. Fixes: 0817534ff9 ("smackfs: Fix use-after-free in netlbl_catmap_walk()") Signed-off-by: Jiawei Ye <jiawei.ye@foxmail.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>		2024-09-03 08:37:17 -07:00
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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
smack_access.c	smack: Replace kzalloc + strncpy with kstrndup	2022-08-01 11:26:09 -07:00
smack_lsm.c	Two fixes for Smack networking by Konstantin Andreev.	2024-07-16 14:56:13 -07:00
smack_netfilter.c	security: smack: Fix indentation in smack_netfilter.c	2024-08-22 13:38:56 -07:00
smack.h	smack: Set the SMACK64TRANSMUTE xattr in smack_inode_init_security()	2023-07-10 13:59:38 -04:00
smackfs.c	smackfs: Use rcu_assign_pointer() to ensure safe assignment in smk_set_cipso	2024-09-03 08:37:17 -07:00