{"id":"CVE-2026-98553","title":"autofs: fix sbi->pipe file reference leak in autofs_kill_sb()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nautofs: fix sbi->pipe file reference leak in autofs_kill_sb()\n\nWhen autofs_fill_super() fails before clearing AUTOFS_SBI_CATATONIC (for\nexample, when find_get_pid() fai…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 3684e2273ba94553af3c5195a46a50214a1a96e3","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 0662b1ff9b383d5a233d344e4dc518c27a17f7b8","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 34fa4c1c6e10507dc60e35a82cc9655666946cfd","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < a58593b501b7be5ad2bc5181bfa8cd4599be257c","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < f1c57f5b16bbc3571bd479c290996c4d4e1fb931","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 4bcb371019097d0e357f097902587401c509bbc9","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6","Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e","Linux 4.18"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:18:20.728Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98553","references":[{"url":"https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3"},{"url":"https://git.kernel.org/stable/c/0662b1ff9b383d5a233d344e4dc518c27a17f7b8"},{"url":"https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd"},{"url":"https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c"},{"url":"https://git.kernel.org/stable/c/f1c57f5b16bbc3571bd479c290996c4d4e1fb931"},{"url":"https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9"},{"url":"https://git.kernel.org/stable/c/fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6"},{"url":"https://git.kernel.org/stable/c/aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.263Z","slug":"CVE-2026-98553","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nautofs: fix sbi->pipe file reference leak in autofs_kill_sb()\n\nWhen autofs_fill_super() fails before clearing AUTOFS_SBI_CATATONIC (for\nexample, when find_get_pid() fails on an invalid pgrp mount option, or\nwhen an fs_context is closed before mounting), deactivate_locked_super()\ninvokes autofs_kill_sb() -> autofs_catatonic_mode(sbi).\n\nBecause AUTOFS_SBI_CATATONIC is still set in sbi->flags,\nautofs_catatonic_mode() returns early without calling fput(sbi->pipe),\npermanently leaking the pipe struct file reference.\n\nExplicitly release sbi->pipe in autofs_kill_sb() if it is still non-NULL\nafter autofs_catatonic_mode().\n\n## Affected\n\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 3684e2273ba94553af3c5195a46a50214a1a96e3`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 0662b1ff9b383d5a233d344e4dc518c27a17f7b8`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 34fa4c1c6e10507dc60e35a82cc9655666946cfd`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < a58593b501b7be5ad2bc5181bfa8cd4599be257c`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < f1c57f5b16bbc3571bd479c290996c4d4e1fb931`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < 4bcb371019097d0e357f097902587401c509bbc9`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6`\n- `Linux >= ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7 < aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e`\n- `Linux 4.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}