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linux/security/integrity
Paul Moore 63dff3e488 lsm: add the inode_free_security_rcu() LSM implementation hook
The LSM framework has an existing inode_free_security() hook which
is used by LSMs that manage state associated with an inode, but
due to the use of RCU to protect the inode, special care must be
taken to ensure that the LSMs do not fully release the inode state
until it is safe from a RCU perspective.

This patch implements a new inode_free_security_rcu() implementation
hook which is called when it is safe to free the LSM's internal inode
state.  Unfortunately, this new hook does not have access to the inode
itself as it may already be released, so the existing
inode_free_security() hook is retained for those LSMs which require
access to the inode.

Cc: stable@vger.kernel.org
Reported-by: syzbot+5446fbf332b0602ede0b@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/r/00000000000076ba3b0617f65cc8@google.com
Signed-off-by: Paul Moore <paul@paul-moore.com>
2024-08-12 15:35:04 -04:00
..
evm lsm: Refactor return value of LSM hook inode_copy_up_xattr 2024-07-31 14:47:09 -04:00
ima lsm: add the inode_free_security_rcu() LSM implementation hook 2024-08-12 15:35:04 -04:00
platform_certs
digsig_asymmetric.c crypto: sm2 - Remove sm2 algorithm 2024-06-07 19:46:39 +08:00
digsig.c integrity: eliminate unnecessary "Problem loading X.509 certificate" msg 2024-02-16 08:04:17 -05:00
iint.c integrity: Remove LSM 2024-02-15 23:43:48 -05:00
integrity_audit.c
integrity.h integrity: Avoid -Wflex-array-member-not-at-end warnings 2024-04-08 07:55:48 -04:00
Kconfig integrity-v6.7 2023-11-02 06:53:22 -10:00
Makefile ima: Move to LSM infrastructure 2024-02-15 23:43:46 -05:00