CVE-2026-23404In the Linux kernel, the following vulnerability has been resolved: apparmor: replace recursive profile removal with iterative approach The profile removal code uses recursion when removing nested pr…
Updated under an hour ago ()
Does this affect you?
It affects linux_kernel. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: apparmor: replace recursive profile removal with iterative approach The profile removal code uses recursion when removing nested profiles, which can lead to kernel stack exhaustion and system crashes. Reproducer: $ pf='a'; for ((i=0; i<1024; i++)); do echo -e "profile $pf { \n }" | apparmor_parser -K -a; pf="$pf//x"; done $ echo -n a > /sys/kernel/security/apparmor/.remove Replace the recursive __aa_profile_list_release() approach with an iterative approach in __remove_profile(). The function repeatedly finds and removes leaf profiles until the entire subtree is removed, maintaining the same removal semantic without recursion.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 2.6.36.1 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; 2.6.36; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/33959a491e9fd557abfa5fce5ae4637d400915d3patch
- https://git.kernel.org/stable/c/4fdc847b107321dec22bf8ecd6019b7af76d7886patch
- https://git.kernel.org/stable/c/7eade846e013cbe8d2dc4a484463aa19e6515c7fpatch
- https://git.kernel.org/stable/c/999bd704b0b641527a5ed46f0d969deff8cfa68bpatch
- https://git.kernel.org/stable/c/a6a941a1294ac5abe22053dc501d25aed96e48fepatch
- https://git.kernel.org/stable/c/ab09264660f9de5d05d1ef4e225aa447c63a8747patch
- https://git.kernel.org/stable/c/b36a04284d0208be94e5e401409caa00e2bf1be1patch
- https://git.kernel.org/stable/c/ea854f032190cc9f26dc4a0e727090c89e55e342patch
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.