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CVE Vulnerability Details :
CVE-2026-47328
PUBLISHED
More InfoOfficial Page
Assigner-canonical
Assigner Org ID-cc1ad9ee-3454-478d-9317-d3e869d708bc
View Known Exploited Vulnerability (KEV) details
Published At-28 May, 2026 | 18:27
Updated At-28 May, 2026 | 19:25
Rejected At-
▼CVE Numbering Authority (CNA)
Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling

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.

Affected Products
Vendor
Canonical Ltd.Canonical
Product
Ubuntu Linux
Collection URL
https://launchpad.net/ubuntu/+source/
Package Name
linux
Repo
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/
Modules
  • AppArmor
Default Status
unaffected
Versions
Affected
  • From 6.8.0 before 6.8.0-124.124 (dpkg)
  • From 6.17.0 before 6.17.0-35.35 (dpkg)
  • From 7.0.0 before 7.0.0-22.22 (dpkg)
Problem Types
TypeCWE IDDescription
CWECWE-590CWE-590 Free of memory not on the heap
Type: CWE
CWE ID: CWE-590
Description: CWE-590 Free of memory not on the heap
Metrics
VersionBase scoreBase severityVector
3.16.1MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Version: 3.1
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Tristan Madani (@TristanInSec), Talence Security
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac
patch
Hyperlink: https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found