CVE-2026-23403
- Source
- https://cve.org/CVERecord?id=CVE-2026-23403
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23403.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-23403
- Downstream
- Published
- 2026-04-01T08:36:34.269Z
- Modified
- 2026-04-02T03:30:31.727936Z
- Summary
- apparmor: fix memory leak in verify_header
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
apparmor: fix memory leak in verify_header
The function sets
*ns = NULLon every call, leaking the namespace string allocated in previous iterations when multiple profiles are unpacked. This also breaks namespace consistency checking since *ns is always NULL when the comparison is made.Remove the incorrect assignment. The caller (aa_unpack) initializes *ns to NULL once before the loop, which is sufficient.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23403.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/42fd831abfc15d0643c14688f0522556b347e7e6
- https://git.kernel.org/stable/c/4f0889f2df1ab99224a5e1ac4e20437eea5fe38e
- https://git.kernel.org/stable/c/663ce34786e759ebcbeb3060685c20bcc886d51a
- https://git.kernel.org/stable/c/786e2c2a87d9c505f33321d1fd23a176aa8ddeb1
- https://git.kernel.org/stable/c/e38c55d9f834e5b848bfed0f5c586aaf45acb825
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23403.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23403
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceddd51c84857630e77c139afe4d9bba65fc051dc3fFixed663ce34786e759ebcbeb3060685c20bcc886d51aFixed786e2c2a87d9c505f33321d1fd23a176aa8ddeb1Fixed4f0889f2df1ab99224a5e1ac4e20437eea5fe38eFixed42fd831abfc15d0643c14688f0522556b347e7e6Fixede38c55d9f834e5b848bfed0f5c586aaf45acb825