CVE-2026-23403
Medium · 5.5CVSS
5.5
EPSS
0.2%
Published
Apr 1, 2026
CISA due date
—
The record
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix memory leak in verify_header The function sets `*ns = NULL` on 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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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