CVE-2026-72376

0.0

afs: Fix misplaced inc of net->cells_outstanding

Overview
Vulnerability Timeline

Overview

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix misplaced inc of net->cells_outstanding Fix net->cells_outstanding being incremented before the check for failure of idr_alloc_cyclic(), leaving the count incremented on error.

Details

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

Impact

Affected Products

The following products are affected by CVE-2026-72376 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Linux	linux_kernel

: Total Affected Vendor : 1 | Products : 1

Solution

Apply the afs kernel patch to correct cell outstanding count management.

Apply the afs kernel patch.
Update the Linux kernel.
Verify correct cell count handling.

References

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-2026-72376.

URL	Resource
https://git.kernel.org/stable/c/5ea289ca751c47125f6a4138c93ba10c05cd28f0
https://git.kernel.org/stable/c/654a546c34f3921dd03f9ea74e60139ebffd9e20
https://git.kernel.org/stable/c/6e310f818abcef947a06584158b9e6c6cd0c98d3
https://git.kernel.org/stable/c/c9c3b615a462a4023bd148f02c564e175ed10502

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72376 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-2026-72376 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-2026-72376 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72376 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': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '6e310f818abcef947a06584158b9e6c6cd0c98d3', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '5ea289ca751c47125f6a4138c93ba10c05cd28f0', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '654a546c34f3921dd03f9ea74e60139ebffd9e20', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': 'c9c3b615a462a4023bd148f02c564e175ed10502', 'versionType': 'git'}, {'status': 'affected', 'version': 'e44b8d2aa1543f5c554fda7839574abe8a5ef5ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'f339eda9b90e49e82043c145ac628d679d913638', 'versionType': 'git'}, {'status': 'affected', 'version': '5.8.17', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.9.2', 'lessThan': '5.10', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', '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'], 'defaultStatus': 'affected'}]	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '6e310f818abcef947a06584158b9e6c6cd0c98d3', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '5ea289ca751c47125f6a4138c93ba10c05cd28f0', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '654a546c34f3921dd03f9ea74e60139ebffd9e20', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': 'c9c3b615a462a4023bd148f02c564e175ed10502', 'versionType': 'git'}, {'status': 'affected', 'version': 'e44b8d2aa1543f5c554fda7839574abe8a5ef5ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'f339eda9b90e49e82043c145ac628d679d913638', 'versionType': 'git'}, {'status': 'affected', 'version': '5.8.17', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.9.2', 'lessThan': '5.10', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', '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'], 'defaultStatus': 'affected'}]

New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Aug. 15, 2026

Action	Type	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': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '6e310f818abcef947a06584158b9e6c6cd0c98d3', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '5ea289ca751c47125f6a4138c93ba10c05cd28f0', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': '654a546c34f3921dd03f9ea74e60139ebffd9e20', 'versionType': 'git'}, {'status': 'affected', 'version': '88c853c3f5c0a07c5db61b494ee25152535cfeee', 'lessThan': 'c9c3b615a462a4023bd148f02c564e175ed10502', 'versionType': 'git'}, {'status': 'affected', 'version': 'e44b8d2aa1543f5c554fda7839574abe8a5ef5ba', 'versionType': 'git'}, {'status': 'affected', 'version': 'f339eda9b90e49e82043c145ac628d679d913638', 'versionType': 'git'}, {'status': 'affected', 'version': '5.8.17', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.9.2', 'lessThan': '5.10', 'versionType': 'semver'}], 'programFiles': ['fs/afs/cell.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.97', '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'], 'defaultStatus': 'affected'}]
Added	Description	In the Linux kernel, the following vulnerability has been resolved: afs: Fix misplaced inc of net->cells_outstanding Fix net->cells_outstanding being incremented before the check for failure of idr_alloc_cyclic(), leaving the count incremented on error.
Added	Reference	https://git.kernel.org/stable/c/5ea289ca751c47125f6a4138c93ba10c05cd28f0
Added	Reference	https://git.kernel.org/stable/c/654a546c34f3921dd03f9ea74e60139ebffd9e20
Added	Reference	https://git.kernel.org/stable/c/6e310f818abcef947a06584158b9e6c6cd0c98d3
Added	Reference	https://git.kernel.org/stable/c/c9c3b615a462a4023bd148f02c564e175ed10502

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.

Race Condition

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