High 7.8Published Aug 15, 2026

CVE-2026-72461apparmor: fix refcount leak when updating the sk_ctx

Updated under an hour ago (2026-10-19 10:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix refcount leak when updating the sk_ctx Currently update_sk_ctx() transfers the plabel reference, unfortunately it is also unconditionally put in the caller. Ideally we would make the caller conditionally put the reference based on whether it was transferred but for now just fix the bug by getting a reference.

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: Received
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	88fec3526e84123997ecebd6bb6778eb4ce779b7 builds before 045dbe89ac31709abd73390d0805d52fece7ef39; from 88fec3526e84123997ecebd6bb6778eb4ce779b7 before b8642f1478982a97ca2eb59f70f631a9de42ae11; 88fec3526e84123997ecebd6bb6778eb4ce779b7 builds before 6d25e7b47616cb2db43351210929c8f19dc305a3	CNA record

References

https://git.kernel.org/stable/c/045dbe89ac31709abd73390d0805d52fece7ef39
https://git.kernel.org/stable/c/b8642f1478982a97ca2eb59f70f631a9de42ae11
https://git.kernel.org/stable/c/6d25e7b47616cb2db43351210929c8f19dc305a3

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.