CVE-2026-98553

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/0662b1ff9b383d5a233d344e4dc518c27a17f7b8
• https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd
• https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3
• https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9
• https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c