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CVE-2026-23411 High

apparmor: fix race between freeing data and fs accessing it

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.

Exploit probability 0.1%
Published April 1, 2026
Required by Not available
Last source change July 15, 2026

02 / AFFECTED SOFTWARE

Affected packages

Linux Kernel
Unknown Unknown

03 / CONNECTIONS

Connected vulnerabilities

related OPENSUSE-SU-2026:20826-1
related SUSE-SU-2026:2111-1
related SUSE-SU-2026:21841-1
related SUSE-SU-2026:21845-1
related SUSE-SU-2026:21860-1
related SUSE-SU-2026:2202-1
related SUSE-SU-2026:2215-1
related SUSE-SU-2026:2216-1
related SUSE-SU-2026:2217-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2026-23411

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.

View original source

05 / REFERENCES

Further evidence