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Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.

PUBLISHED Reserved 2026-05-19 | Published 2026-05-28 | Updated 2026-05-28 | Assigner canonical




MEDIUM: 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Problem types

CWE-590 Free of memory not on the heap

Product status

Default status
unaffected

6.8.0 (dpkg) before 6.8.0-124.124
affected

6.17.0 (dpkg) before 6.17.0-35.35
affected

7.0.0 (dpkg) before 7.0.0-22.22
affected

Credits

Tristan Madani (@TristanInSec), Talence Security finder

References

git.launchpad.net/...f3c4902c39432ce7ea0d384cb70eba282247fac patch

cve.org (CVE-2026-47328)

nvd.nist.gov (CVE-2026-47328)

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