CVE-2026-68153libceph: remove debugfs files before client teardown
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < ac78549d186090ee7125d28c3a8c376573b36194
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < 463a264e9094384112a5c8b46f0a9ddaf8566904
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < fe46b7e06f14f6f94766832df309b249cb689d27
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < fc1010e7e0204ece6cc0f9af4f473e9553535eab
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < d3dc8889d39a676bf840132bd5c5c48cb0daba23
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < 8f5a3abc54ba24dbceb14cc3a719908c4f688091
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < b9fedda2f628e030384228de0dafc574b7fb0c2f
- affected 76aa844d5b2fb8c839180d3f5874e333b297e5fd – < e4c804726c4afce3ba648b982d564f6af2cfa328
- affected 2.6.34
- unaffected < 2.6.34
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.148 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/ac78549d186090ee7125d28c3a8c376573b36194 (opens in a new tab)
- https://git.kernel.org/stable/c/463a264e9094384112a5c8b46f0a9ddaf8566904 (opens in a new tab)
- https://git.kernel.org/stable/c/fe46b7e06f14f6f94766832df309b249cb689d27 (opens in a new tab)
- https://git.kernel.org/stable/c/fc1010e7e0204ece6cc0f9af4f473e9553535eab (opens in a new tab)
- https://git.kernel.org/stable/c/d3dc8889d39a676bf840132bd5c5c48cb0daba23 (opens in a new tab)
- https://git.kernel.org/stable/c/8f5a3abc54ba24dbceb14cc3a719908c4f688091 (opens in a new tab)
- https://git.kernel.org/stable/c/b9fedda2f628e030384228de0dafc574b7fb0c2f (opens in a new tab)
- https://git.kernel.org/stable/c/e4c804726c4afce3ba648b982d564f6af2cfa328 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55539 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-68153)Record last updated .