CVE-2026-72459

apparmor: aa_label_alloc use aa_label_free on alloc failure

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 05:57 AM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: aa_label_alloc use aa_label_free on alloc failure aa_label_alloc() allocates a secid before allocating or taking the label proxy. If the later proxy step fails, the error path only freed the label memory, leaking any resources initialized by aa_label_init(). Use aa_label_free() on the failure path so partially initialized labels release their secid and other label resources before the backing memory is freed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.13 ≤ v < 5.10.2614.13 ≤ v < 5.15.2124.13 ≤ v < 6.1.1784.13 ≤ v < 6.12.974.13 ≤ v < 6.18.404.13 ≤ v < 6.6.1454.13 ≤ v < 7.1.54.13 ≤ v < 7.24.13f1bd904175e8190ce14aedee37e207ab51fe3b30
Vendor states this is fixed in 654fe7505dc6889724d4094fa64f89991afabfc3 (fixed)
Vendor states this is fixed in 6d91479174240f39e9edea250d95fa08c678a207 (fixed)
Vendor states this is fixed in 7cb69e109610bba500e1ecb870f7988a4717208a (fixed)
Vendor states this is fixed in ae02e603c0b39b29f3ce6fe3efe01b286af1a2a4 (fixed)
Vendor states this is fixed in b14fbacad77d64594228983ec20d61a224f3f491 (fixed)
Vendor states this is fixed in b5a9da5d36162d34db0f36abb15420e295176793 (fixed)
Vendor states this is fixed in bf310b044e85d4de670c94295c5d8e4c5bc5e7bc (fixed)
Vendor states this is fixed in cc2192899d502e3321e60cf1e91421e7309d089c (fixed)
Vendor states this is fixed in 4.13 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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