FKIE_CVE-2026-45848

Vulnerability from fkie_nvd - Published: 2026-05-27 14:16 - Updated: 2026-05-27 14:48
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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": "CVE-2026-45848",
  "lastModified": "2026-05-27T14:48:31.480",
  "metrics": {},
  "published": "2026-05-27T14:16:56.700",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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