CVE-2026-72372
afs: Fix lack of locking around modifications of net->cells_dyn_ino
Description
In the Linux kernel, the following vulnerability has been resolved: afs: Fix lack of locking around modifications of net->cells_dyn_ino Fix the lack of locking around modifications of net->cells_dyn_ino by taking net->cells_lock exclusively. This also requires to cell to be removed from net->cells_dyn_ino in afs_destroy_cell_work() rather than in afs_cell_destroy() as the latter runs in RCU cleanup context and sleeping locks cannot be taken there.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:18 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
- Apply kernel patch to afs module.
- Ensure net->cells_lock is acquired exclusively.
- Modify cell removal in afs_destroy_cell_work().
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-2026-72372.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72372 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-2026-72372
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-2026-72372 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72372 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 Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '537b0105952578531f748c7fb3ce36ae9a514784', 'lessThan': '4d8a2fe8847859f4fa4e9a2fa1221c9c1158e66b', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '2ffb70a8a01988046bb207b7d0af9358a8337378', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': 'e94f92fd56c553a8bf9421c3289e1b85c7c08857', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '55e841836c6f4646490f7b0347192b7a92d431ba', 'versionType': 'git'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '537b0105952578531f748c7fb3ce36ae9a514784', 'lessThan': '4d8a2fe8847859f4fa4e9a2fa1221c9c1158e66b', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '2ffb70a8a01988046bb207b7d0af9358a8337378', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': 'e94f92fd56c553a8bf9421c3289e1b85c7c08857', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '55e841836c6f4646490f7b0347192b7a92d431ba', 'versionType': 'git'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 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': '537b0105952578531f748c7fb3ce36ae9a514784', 'lessThan': '4d8a2fe8847859f4fa4e9a2fa1221c9c1158e66b', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '2ffb70a8a01988046bb207b7d0af9358a8337378', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': 'e94f92fd56c553a8bf9421c3289e1b85c7c08857', 'versionType': 'git'}, {'status': 'affected', 'version': '1d0b929fc070b4115403a0a6206a0c6a62dd61f5', 'lessThan': '55e841836c6f4646490f7b0347192b7a92d431ba', 'versionType': 'git'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/cell.c', 'fs/afs/dynroot.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: afs: Fix lack of locking around modifications of net->cells_dyn_ino Fix the lack of locking around modifications of net->cells_dyn_ino by taking net->cells_lock exclusively. This also requires to cell to be removed from net->cells_dyn_ino in afs_destroy_cell_work() rather than in afs_cell_destroy() as the latter runs in RCU cleanup context and sleeping locks cannot be taken there. Added Reference https://git.kernel.org/stable/c/2ffb70a8a01988046bb207b7d0af9358a8337378 Added Reference https://git.kernel.org/stable/c/4d8a2fe8847859f4fa4e9a2fa1221c9c1158e66b Added Reference https://git.kernel.org/stable/c/55e841836c6f4646490f7b0347192b7a92d431ba Added Reference https://git.kernel.org/stable/c/e94f92fd56c553a8bf9421c3289e1b85c7c08857