High 7.8Published Apr 1, 2026

CVE-2026-23411apparmor: fix race between freeing data and fs accessing it

Updated under an hour ago (Oct 28, 2026, 12:30 PM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from c961ee5f21b202dea60b63eeef945730d92e46a6 before a92c5e5086a87d082696245a8607666da3d80554; from c961ee5f21b202dea60b63eeef945730d92e46a6 before 667df93769c02ff581c77d2d8f162147e719c557; from c961ee5f21b202dea60b63eeef945730d92e46a6 before 3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc; from c961ee5f21b202dea60b63eeef945730d92e46a6 before ae10787d955fb255d381e0d5589451dd72c614b1; from c961ee5f21b202dea60b63eeef945730d92e46a6 before eecce026399917f6efa532c56bc7a3e9dd6ee68b; from c961ee5f21b202dea60b63eeef945730d92e46a6 before 13bc2772414d68e94e273dea013181a986948ddf; from c961ee5f21b202dea60b63eeef945730d92e46a6 before 2a732ed26fbd048e7925d227af8cf9ea43fb5cc9; from c961ee5f21b202dea60b63eeef945730d92e46a6 before 8e135b8aee5a06c52a4347a5a6d51223c6f36ba3	CNA record
linux linux_kernel linux:linux_kernel	from 4.13.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.169; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.18; from 6.19 before 6.19.8; 4.13; and 7 more ranges	NVD

References

References

https://git.kernel.org/stable/c/a92c5e5086a87d082696245a8607666da3d80554	patch
https://git.kernel.org/stable/c/667df93769c02ff581c77d2d8f162147e719c557	patch
https://git.kernel.org/stable/c/3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc	patch
https://git.kernel.org/stable/c/ae10787d955fb255d381e0d5589451dd72c614b1	patch
https://git.kernel.org/stable/c/eecce026399917f6efa532c56bc7a3e9dd6ee68b	patch
https://git.kernel.org/stable/c/13bc2772414d68e94e273dea013181a986948ddf	patch
https://git.kernel.org/stable/c/2a732ed26fbd048e7925d227af8cf9ea43fb5cc9	patch
https://git.kernel.org/stable/c/8e135b8aee5a06c52a4347a5a6d51223c6f36ba3	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.