CVE-2026-45893apparmor: Fix & Optimize table creation from possibly unaligned memory
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e6e8bf418850d7958311a96ccfb594f2bcc8313e before 1fbc4b24c7443ffd501609be74d9856fb940d703; from e6e8bf418850d7958311a96ccfb594f2bcc8313e before 47e351dfef60ab0e3285133556e1a9c7f646a969; from e6e8bf418850d7958311a96ccfb594f2bcc8313e before e027999049c493fb728ead5a90db76942181a935; from e6e8bf418850d7958311a96ccfb594f2bcc8313e before 226c3b10aab23f73b03c47e7773107de56ba3a4e; from e6e8bf418850d7958311a96ccfb594f2bcc8313e before 6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a | CNA record |
linux linux_kernel linux:linux_kernel | from 4.11 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4 | NVD |
References
- https://git.kernel.org/stable/c/1fbc4b24c7443ffd501609be74d9856fb940d703
- https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969patch
- https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935patch
- https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4epatch
- https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3apatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.