Vulnerability-Lookup

GHSA-8JQG-G4WJ-938G

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 NULL sock in aa_sock_file_perm

Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45848"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL sock in aa_sock_file_perm\n\nDeal with the potential that sock and sock-sk can be NULL during\nsocket setup or teardown. This could lead to an oops. The fix for NULL\npointer dereference in __unix_needs_revalidation shows this is at\nleast possible for af_unix sockets. While the fix for af_unix sockets\napplies for newer mediation this is still the fall back path for older\naf_unix mediation and other sockets, so ensure it is covered.",
  "id": "GHSA-8jqg-g4wj-938g",
  "modified": "2026-05-27T15:33:12Z",
  "published": "2026-05-27T15:33:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45848"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45848 (GCVE-0-2026-45848)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:15 – Updated: 2026-05-27 12:15

Title

apparmor: fix NULL sock in aa_sock_file_perm

Summary

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aa_sock_file_perm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/68538ec34fcb4194c…
https://git.kernel.org/stable/c/5121b7283f1c46e4c…
https://git.kernel.org/stable/c/c11b7c3280d000376…
https://git.kernel.org/stable/c/0dc19bca22606f7a6…
https://git.kernel.org/stable/c/3852eb9a0392eb435…
https://git.kernel.org/stable/c/ccb66a3c6c8f51b3e…
https://git.kernel.org/stable/c/8a0ededbfcff74598…
https://git.kernel.org/stable/c/00b67657535dfea56…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 68538ec34fcb4194c7961dc4eca6f5537fec8067 (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 5121b7283f1c46e4c06b88b1dda7b064429d77de (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < c11b7c3280d000376e27ebfed17ec7046699eab4 (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 0dc19bca22606f7a61d5988408f74e3ae0ef3486 (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 3852eb9a0392eb435c03dcb47d581bcfe6a9a95b (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835 (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 8a0ededbfcff74598f82f1d4b8ef9db28878b317 (git) Affected: 56974a6fcfef69ee0825bd66ed13e92070ac5224 , < 00b67657535dfea56e84d11492f5c0f61d0af297 (git)
Linux	Linux	Affected: 4.17 Unaffected: 0 , < 4.17 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (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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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.

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GHSA-8JQG-G4WJ-938G

CVE-2026-45848 (GCVE-0-2026-45848)

Tags

Sightings

Nomenclature