apparmor: Fix & Optimize table creation from possibly unaligned memory (CVE-2026-45893) | HOL Guard CVE

High · CVSS 7.1CVE-2026-45893

apparmor: Fix & Optimize table creation from possibly unaligned memory

Answer in brief

CVE-2026-45893 records a High severity (CVSS 7.1) vulnerability in apparmor: Fix & Optimize table creation from possibly unaligned memory. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 27, 2026Updated Jun 25, 2026Source checked Sep 19, 2026First seen by HOL Jun 25, 2026Material review Jun 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=e6e8bf418850d7958311a96ccfb594f2bcc8313e <47e351dfef60ab0e3285133556e1a9c7f646a969 \|\| >=e6e8bf418850d7958311a96ccfb594f2bcc8313e <e027999049c493fb728ead5a90db76942181a935 \|\| >=e6e8bf418850d7958311a96ccfb594f2bcc8313e <226c3b10aab23f73b03c47e7773107de56ba3a4e \|\| >=e6e8bf418850d7958311a96ccfb594f2bcc8313e <6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a	47e351dfef60ab0e3285133556e1a9c7f646a969, e027999049c493fb728ead5a90db76942181a935, 226c3b10aab23f73b03c47e7773107de56ba3a4e, 6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a
Linux/Linuxgeneric	4.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 47e351dfef60ab0e3285133556e1a9c7f646a969 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix & Optimize table creation from possibly unaligned memory Source blob may come from userspace and might be unaligned. Try to optize the copying process by avoiding unaligned memory accesses. - Added Fixes tag - Added "Fix &" to description as this doesn't just optimize but fixes a potential unaligned memory access [jj: remove duplicate word "convert" in comment trigger checkpatch warning]

Quoted source text, attributed separately from HOL analysis.