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Description

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.

PUBLISHED Reserved 2026-01-13 | Published 2026-04-01 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 9d678eb0fe55c9195d9a253e8c5b82a87b930737
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 6b79abcb3c985e153fcf9d395e1d4336081aabc2
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before bcf82c0c5a8b383fd2d5d8f3fd880cdcab2ac557
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 663ce34786e759ebcbeb3060685c20bcc886d51a
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 786e2c2a87d9c505f33321d1fd23a176aa8ddeb1
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 4f0889f2df1ab99224a5e1ac4e20437eea5fe38e
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before 42fd831abfc15d0643c14688f0522556b347e7e6
affected

dd51c84857630e77c139afe4d9bba65fc051dc3f (git) before e38c55d9f834e5b848bfed0f5c586aaf45acb825
affected

Default status
affected

3.12
affected

Any version before 3.12
unaffected

5.10.253 (semver)
unaffected

5.15.203 (semver)
unaffected

6.1.169 (semver)
unaffected

6.6.130 (semver)
unaffected

6.12.77 (semver)
unaffected

6.18.18 (semver)
unaffected

6.19.8 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/9d678eb0fe55c9195d9a253e8c5b82a87b930737

git.kernel.org/...c/6b79abcb3c985e153fcf9d395e1d4336081aabc2

git.kernel.org/...c/bcf82c0c5a8b383fd2d5d8f3fd880cdcab2ac557

git.kernel.org/...c/663ce34786e759ebcbeb3060685c20bcc886d51a

git.kernel.org/...c/786e2c2a87d9c505f33321d1fd23a176aa8ddeb1

git.kernel.org/...c/4f0889f2df1ab99224a5e1ac4e20437eea5fe38e

git.kernel.org/...c/42fd831abfc15d0643c14688f0522556b347e7e6

git.kernel.org/...c/e38c55d9f834e5b848bfed0f5c586aaf45acb825

cve.org (CVE-2026-23403)

nvd.nist.gov (CVE-2026-23403)

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