CVE-2026-47328
Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-590 |
| Vendor | canonical |
| Product | ubuntu linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 28, 2026 |
| Last Updated | May 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
Canonical / Ubuntu Linux
6.8.0 < 6.8.0-124.124 6.17.0 < 6.17.0-35.35 7.0.0 < 7.0.0-22.22
References
Credits
Tristan Madani (@TristanInSec), Talence Security