CVE-2026-72461

High

Description

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux
PublishedAug 15, 2026
First seenAug 15, 2026

How to fix

Update
  • Linux Linux045dbe89ac31709abd73390d0805d52fece7ef39, b8642f1478982a97ca2eb59f70f631a9de42ae11, 6d25e7b47616cb2db43351210929c8f19dc305a3 or later

Affected products

ProductAffected versionsFixed in
Linux Linux88fec3526e84123997ecebd6bb6778eb4ce779b7 ≤ v < 045dbe89ac31709abd73390d0805d52fece7ef39, 88fec3526e84123997ecebd6bb6778eb4ce779b7 ≤ v < b8642f1478982a97ca2eb59f70f631a9de42ae11, 88fec3526e84123997ecebd6bb6778eb4ce779b7 ≤ v < 6d25e7b47616cb2db43351210929c8f19dc305a3, 6.17045dbe89ac31709abd73390d0805d52fece7ef39, b8642f1478982a97ca2eb59f70f631a9de42ae11, 6d25e7b47616cb2db43351210929c8f19dc305a3

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