CVE-2026-68153libceph: remove debugfs files before client teardown
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: libceph: remove debugfs files before client teardown ceph_destroy_client() tears down the monitor client before removing the per-client debugfs files. A concurrent read of the monmap debugfs file can enter monmap_show() after ceph_monc_stop() has freed monc->monmap, triggering a use-after-free. Remove the debugfs files before stopping the OSD and monitor clients. debugfs_remove() drains active handlers and prevents new accesses, so the debugfs callbacks can no longer race the rest of client teardown.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before ac78549d186090ee7125d28c3a8c376573b36194; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before 463a264e9094384112a5c8b46f0a9ddaf8566904; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before fe46b7e06f14f6f94766832df309b249cb689d27; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before fc1010e7e0204ece6cc0f9af4f473e9553535eab; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before d3dc8889d39a676bf840132bd5c5c48cb0daba23; 76aa844d5b2fb8c839180d3f5874e333b297e5fd builds before 8f5a3abc54ba24dbceb14cc3a719908c4f688091; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before b9fedda2f628e030384228de0dafc574b7fb0c2f; from 76aa844d5b2fb8c839180d3f5874e333b297e5fd before e4c804726c4afce3ba648b982d564f6af2cfa328 | CNA record |
References
- https://git.kernel.org/stable/c/ac78549d186090ee7125d28c3a8c376573b36194
- https://git.kernel.org/stable/c/463a264e9094384112a5c8b46f0a9ddaf8566904
- https://git.kernel.org/stable/c/fe46b7e06f14f6f94766832df309b249cb689d27
- https://git.kernel.org/stable/c/fc1010e7e0204ece6cc0f9af4f473e9553535eab
- https://git.kernel.org/stable/c/d3dc8889d39a676bf840132bd5c5c48cb0daba23
- https://git.kernel.org/stable/c/8f5a3abc54ba24dbceb14cc3a719908c4f688091
- https://git.kernel.org/stable/c/b9fedda2f628e030384228de0dafc574b7fb0c2f
- https://git.kernel.org/stable/c/e4c804726c4afce3ba648b982d564f6af2cfa328
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.