linux/security/integrity
Stefan Berger 7fb374981e ima: Fix use-after-free on a dentry's dname.name
[ Upstream commit be84f32bb2 ]

->d_name.name can change on rename and the earlier value can be freed;
there are conditions sufficient to stabilize it (->d_lock on dentry,
->d_lock on its parent, ->i_rwsem exclusive on the parent's inode,
rename_lock), but none of those are met at any of the sites. Take a stable
snapshot of the name instead.

Link: https://lore.kernel.org/all/20240202182732.GE2087318@ZenIV/
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-07-05 09:31:51 +02:00
..
evm evm: Fix build warnings 2023-07-19 16:21:03 +02:00
ima ima: Fix use-after-free on a dentry's dname.name 2024-07-05 09:31:51 +02:00
platform_certs efi: Add iMac Pro 2017 to uefi skip cert quirk 2023-01-07 11:11:51 +01:00
digsig.c integrity: Fix memory leakage in keyring allocation error path 2022-12-31 13:32:11 +01:00
digsig_asymmetric.c ima: fix reference leak in asymmetric_verify() 2022-01-24 18:37:36 -05:00
iint.c ima: annotate iint mutex to avoid lockdep false positive warnings 2023-11-28 17:07:12 +00:00
integrity.h ima: detect changes to the backing overlay file 2023-11-28 17:07:12 +00:00
integrity_audit.c integrity: check the return value of audit_log_start() 2022-02-02 11:44:23 -05:00
Kconfig integrity: Introduce a Linux keyring called machine 2022-03-08 13:55:52 +02:00
Makefile integrity: Introduce a Linux keyring called machine 2022-03-08 13:55:52 +02:00