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uutils coreutils mknod Security Label Inconsistency and Broken Cleanup on SELinux Systems

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-35361

Published

The mknod utility in uutils coreutils fails to handle security labels atomically by creating device nodes before setting the SELinux context. If labeling fails, the utility attempts cleanup using std::fs::remove_dir, which cannot remove device nodes or FIFOs. This leaves mislabeled nodes behind with incorrect default contexts, potentially allowing unauthorized access to device nodes that should have been restricted by mandatory access controls.

Source published
22 Apr 2026 16:08:30 UTC
Source modified
22 Apr 2026 17:35:15 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
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CVSS 3.1 · 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

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Sources read 1 Nov 13:03 UTC · 275 of 275 readable · 270 fully read · documentation 469/469 current