CVE-2026-98553
N/AIn 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().
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-98553/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-98553/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3
- https://git.kernel.org/stable/c/0662b1ff9b383d5a233d344e4dc518c27a17f7b8
- https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd
- https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c
- https://git.kernel.org/stable/c/f1c57f5b16bbc3571bd479c290996c4d4e1fb931
- https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9
- https://git.kernel.org/stable/c/fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6
- https://git.kernel.org/stable/c/aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e