CVE-2026-72460

apparmor: check label build before no_new_privs test

HIGH

7.1

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

HIGH7.1

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: check label build before no_new_privs test aa_change_profile() builds a replacement label with fn_label_build_in_scope() before the no_new_privs subset check. The build helper can fail and return NULL or an ERR_PTR, but the result was passed to aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL() check. Reuse the existing target-label build failure handling immediately after the build. This preserves the current audit handling while preventing the subset helper from dereferencing an invalid label.

Affected

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

Linux Kernel · Linux

95%

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 < 7.24.13e00b02bb6ac2a1893227ce8014b649028d6425d2

Vendor states this is fixed in 31cb109db5e6322ed22304fd5c0dedbaa438d6d3 (fixed)

Vendor states this is fixed in a29f06db44b4c94597ded58f639eed3e21781ac3 (fixed)

Vendor states this is fixed in a58cafd38b46fb1a2220e2fbbcfe291ea75fa147 (fixed)

Vendor states this is fixed in b7c45c05a396a017c49ac7949de240a0dfc0ac4e (fixed)

Vendor states this is fixed in cfc224866530a6842b6c2d2d30ef6a9b0e64bb9c (fixed)

Vendor states this is fixed in d82160132345688a09cbaa648cfdd16bb32e8ea2 (fixed)

Vendor states this is fixed in d84bb195d208adbf77f012ca2a96e11163f6def1 (fixed)

Vendor states this is fixed in ec926b2a351eeeb31e6c9aee02e0c32f94b5588f (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)