Vulnerability-Lookup

GHSA-44WW-RW32-794R

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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]

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45893"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:03Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix \u0026 Optimize table creation from possibly unaligned memory\n\nSource blob may come from userspace and might be unaligned.\nTry to optize the copying process by avoiding unaligned memory accesses.\n\n- Added Fixes tag\n- Added \"Fix \u0026\" to description as this doesn\u0027t just optimize but fixes\n        a potential unaligned memory access\n[jj: remove duplicate word \"convert\" in comment trigger checkpatch warning]",
  "id": "GHSA-44ww-rw32-794r",
  "modified": "2026-05-27T15:33:14Z",
  "published": "2026-05-27T15:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45893"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/226c3b10aab23f73b03c47e7773107de56ba3a4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47e351dfef60ab0e3285133556e1a9c7f646a969"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e027999049c493fb728ead5a90db76942181a935"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45893 (GCVE-0-2026-45893)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-05-27 12:17

Title

apparmor: Fix & Optimize table creation from possibly unaligned memory

Summary

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]

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/47e351dfef60ab0e3…
https://git.kernel.org/stable/c/e027999049c493fb7…
https://git.kernel.org/stable/c/226c3b10aab23f73b…
https://git.kernel.org/stable/c/6fc367bfd4c8886e6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e6e8bf418850d7958311a96ccfb594f2bcc8313e , < 47e351dfef60ab0e3285133556e1a9c7f646a969 (git) Affected: e6e8bf418850d7958311a96ccfb594f2bcc8313e , < e027999049c493fb728ead5a90db76942181a935 (git) Affected: e6e8bf418850d7958311a96ccfb594f2bcc8313e , < 226c3b10aab23f73b03c47e7773107de56ba3a4e (git) Affected: e6e8bf418850d7958311a96ccfb594f2bcc8313e , < 6fc367bfd4c8886e6b1742aabbd1c0bdc310db3a (git)
Linux	Linux	Affected: 4.11 Unaffected: 0 , < 4.11 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/apparmor/include/match.h",
            "security/apparmor/match.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "47e351dfef60ab0e3285133556e1a9c7f646a969",
              "status": "affected",
              "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e",
              "versionType": "git"
            },
            {
              "lessThan": "e027999049c493fb728ead5a90db76942181a935",
              "status": "affected",
              "version": "e6e8bf418850d7958311a96ccfb594f2bcc8313e",
              "versionType": "git"
            },
            {
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          "vendor": "Linux",
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            {
              "status": "affected",
              "version": "4.11"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix \u0026 Optimize table creation from possibly unaligned memory\n\nSource blob may come from userspace and might be unaligned.\nTry to optize the copying process by avoiding unaligned memory accesses.\n\n- Added Fixes tag\n- Added \"Fix \u0026\" to description as this doesn\u0027t just optimize but fixes\n        a potential unaligned memory access\n[jj: remove duplicate word \"convert\" in comment trigger checkpatch warning]"
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      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:04.135Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2026-45893",
    "datePublished": "2026-05-27T12:17:04.135Z",
    "dateReserved": "2026-05-13T15:03:33.083Z",
    "dateUpdated": "2026-05-27T12:17:04.135Z",
    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-44WW-RW32-794R

CVE-2026-45893 (GCVE-0-2026-45893)

Tags

Sightings

Nomenclature