CVE-2026-68153
libceph: remove debugfs files before client teardown
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.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Remove debugfs files before stopping clients.
- Ensure debugfs_remove() drains handlers.
- Update the Linux kernel to the latest version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68153.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68153 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68153
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68153 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68153 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'fc1010e7e0204ece6cc0f9af4f473e9553535eab', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'd3dc8889d39a676bf840132bd5c5c48cb0daba23', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': '8f5a3abc54ba24dbceb14cc3a719908c4f688091', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'b9fedda2f628e030384228de0dafc574b7fb0c2f', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'e4c804726c4afce3ba648b982d564f6af2cfa328', 'versionType': 'git'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.34'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.34', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'fc1010e7e0204ece6cc0f9af4f473e9553535eab', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'd3dc8889d39a676bf840132bd5c5c48cb0daba23', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': '8f5a3abc54ba24dbceb14cc3a719908c4f688091', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'b9fedda2f628e030384228de0dafc574b7fb0c2f', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'e4c804726c4afce3ba648b982d564f6af2cfa328', 'versionType': 'git'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.34'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.34', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'fc1010e7e0204ece6cc0f9af4f473e9553535eab', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'd3dc8889d39a676bf840132bd5c5c48cb0daba23', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': '8f5a3abc54ba24dbceb14cc3a719908c4f688091', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'b9fedda2f628e030384228de0dafc574b7fb0c2f', 'versionType': 'git'}, {'status': 'affected', 'version': '76aa844d5b2fb8c839180d3f5874e333b297e5fd', 'lessThan': 'e4c804726c4afce3ba648b982d564f6af2cfa328', 'versionType': 'git'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.34'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.34', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ceph/ceph_common.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/8f5a3abc54ba24dbceb14cc3a719908c4f688091 Added Reference https://git.kernel.org/stable/c/b9fedda2f628e030384228de0dafc574b7fb0c2f Added Reference https://git.kernel.org/stable/c/d3dc8889d39a676bf840132bd5c5c48cb0daba23 Added Reference https://git.kernel.org/stable/c/e4c804726c4afce3ba648b982d564f6af2cfa328 Added Reference https://git.kernel.org/stable/c/fc1010e7e0204ece6cc0f9af4f473e9553535eab