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autofs: fix sbi->pipe file reference leak in autofs_kill_sb()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: autofs: fix sbi->pipe file reference leak in autofs_kill_sb() When autofs_fill_super() fails before clearing AUTOFS_SBI_CATATONIC (for example, when find_get_pid() fails on an invalid pgrp mount option, or when an fs_context is closed before mounting), deactivate_locked_super() invokes autofs_kill_sb() -> autofs_catatonic_mode(sbi). Because AUTOFS_SBI_CATATONIC is still set in sbi->flags, autofs_catatonic_mode() returns early without calling fput(sbi->pipe), permanently leaking the pipe struct file reference. Explicitly release sbi->pipe in autofs_kill_sb() if it is still non-NULL after autofs_catatonic_mode().

Announced Source revision 1
Original source ↗

CVE-2026-98553

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98553

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "3684e2273ba94553af3c5195a46a50214a1a96e3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "0662b1ff9b383d5a233d344e4dc518c27a17f7b8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "34fa4c1c6e10507dc60e35a82cc9655666946cfd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "a58593b501b7be5ad2bc5181bfa8cd4599be257c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "f1c57f5b16bbc3571bd479c290996c4d4e1fb931",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "4bcb371019097d0e357f097902587401c509bbc9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
        "lessThan": "aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/autofs/inode.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.18"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.18",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.55",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.9",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/autofs/inode.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98553

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38574 · Revision 1
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Publisher date
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