CVE-2026-68153
libceph: remove debugfs files before client teardown
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 10, 2026 |
| Last Updated | Aug 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
76aa844d5b2fb8c839180d3f5874e333b297e5fd < ac78549d186090ee7125d28c3a8c376573b36194 76aa844d5b2fb8c839180d3f5874e333b297e5fd < 463a264e9094384112a5c8b46f0a9ddaf8566904 76aa844d5b2fb8c839180d3f5874e333b297e5fd < fe46b7e06f14f6f94766832df309b249cb689d27 76aa844d5b2fb8c839180d3f5874e333b297e5fd < fc1010e7e0204ece6cc0f9af4f473e9553535eab 76aa844d5b2fb8c839180d3f5874e333b297e5fd < d3dc8889d39a676bf840132bd5c5c48cb0daba23 76aa844d5b2fb8c839180d3f5874e333b297e5fd < 8f5a3abc54ba24dbceb14cc3a719908c4f688091 76aa844d5b2fb8c839180d3f5874e333b297e5fd < b9fedda2f628e030384228de0dafc574b7fb0c2f 76aa844d5b2fb8c839180d3f5874e333b297e5fd < e4c804726c4afce3ba648b982d564f6af2cfa328
Linux / Linux
2.6.34
References
git.kernel.org: https://git.kernel.org/stable/c/ac78549d186090ee7125d28c3a8c376573b36194 git.kernel.org: https://git.kernel.org/stable/c/463a264e9094384112a5c8b46f0a9ddaf8566904 git.kernel.org: https://git.kernel.org/stable/c/fe46b7e06f14f6f94766832df309b249cb689d27 git.kernel.org: https://git.kernel.org/stable/c/fc1010e7e0204ece6cc0f9af4f473e9553535eab git.kernel.org: https://git.kernel.org/stable/c/d3dc8889d39a676bf840132bd5c5c48cb0daba23 git.kernel.org: https://git.kernel.org/stable/c/8f5a3abc54ba24dbceb14cc3a719908c4f688091 git.kernel.org: https://git.kernel.org/stable/c/b9fedda2f628e030384228de0dafc574b7fb0c2f git.kernel.org: https://git.kernel.org/stable/c/e4c804726c4afce3ba648b982d564f6af2cfa328