apparmor: replace recursive profile removal with iterative approach

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-23404
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-01 09:16:15 UTC
Updated2026-04-01 14:23:37 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.045290000 (date 2026-04-01)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 33959a491e9fd557abfa5fce5ae4637d400915d3 git Not specified
CNA Linux Linux affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 999bd704b0b641527a5ed46f0d969deff8cfa68b git Not specified
CNA Linux Linux affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 7eade846e013cbe8d2dc4a484463aa19e6515c7f git Not specified
CNA Linux Linux affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 a6a941a1294ac5abe22053dc501d25aed96e48fe git Not specified
CNA Linux Linux affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 ab09264660f9de5d05d1ef4e225aa447c63a8747 git Not specified
CNA Linux Linux affected 2.6.36 Not specified
CNA Linux Linux unaffected 2.6.36 semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.77 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.18 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.8 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a6a941a1294ac5abe22053dc501d25aed96e48fe 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7eade846e013cbe8d2dc4a484463aa19e6515c7f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ab09264660f9de5d05d1ef4e225aa447c63a8747 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/33959a491e9fd557abfa5fce5ae4637d400915d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/999bd704b0b641527a5ed46f0d969deff8cfa68b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report