CVE-2026-98553

high

Description

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().

References

https://git.kernel.org/stable/c/fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6

https://git.kernel.org/stable/c/f1c57f5b16bbc3571bd479c290996c4d4e1fb931

https://git.kernel.org/stable/c/aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e

https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c

https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9

https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3

https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd

https://git.kernel.org/stable/c/0662b1ff9b383d5a233d344e4dc518c27a17f7b8

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103598

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.0021