CVE-2026-45893

high

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix & Optimize table creation from possibly unaligned memory Source blob may co…

Vendor / product: Linux — linux kernel

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]

CVSS

7.1

7.1 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-05-27 14:17

Modified: 2026-10-30 13:18

NVD status: Modified

Last synced 1 day ago

Verified against the source API 2026-10-30 13:38 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥4.11 <6.12.75, ≥6.13 <6.18.14, ≥6.19 <6.19.4

Weakness classification (CWE)

CWE-125

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e

Patch / mitigation: https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969

Patch / mitigation: https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a

Patch / mitigation: https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935

References

https://git.kernel.org/stable/c/1fbc4b24c7443ffd501609be74d9856fb940d703 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/83939c2afba70b49062c31ca6a6de7f46951d26d 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Data sources

NVD CVE API 2.0 — fetched 2026-10-30 13:38 UTC · record ↗

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CVE-2026-45893

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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