CVE-2026-72356
cifs: Fix missing credit release on failure in cifs_issue_read()
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix missing credit release on failure in cifs_issue_read() Fix missing release of credits in the failure path in cifs_issue_read() lest retrying the subreq just overwrites the credits value.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
Yes !
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 the patch for the cifs module.
- Update the Linux kernel to the latest version.
- Rebuild and reinstall the kernel.
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-2026-72356.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72356 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-2026-72356
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-2026-72356 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72356 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'b9ee1f0347bf56d019ca28ddff090234bb45b05c', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '86652704a7fd41a5a8459027e08640bbd1952826', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '3a303f985c6bec8787c2ad4a16b39c14c5bcd765', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'c16b8c4cfb4fe2244cc33e469a93c1ab8684146b', 'versionType': 'git'}], 'programFiles': ['fs/smb/client/file.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', '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/smb/client/file.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'b9ee1f0347bf56d019ca28ddff090234bb45b05c', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '86652704a7fd41a5a8459027e08640bbd1952826', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '3a303f985c6bec8787c2ad4a16b39c14c5bcd765', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'c16b8c4cfb4fe2244cc33e469a93c1ab8684146b', 'versionType': 'git'}], 'programFiles': ['fs/smb/client/file.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', '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/smb/client/file.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': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'b9ee1f0347bf56d019ca28ddff090234bb45b05c', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '86652704a7fd41a5a8459027e08640bbd1952826', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': '3a303f985c6bec8787c2ad4a16b39c14c5bcd765', 'versionType': 'git'}, {'status': 'affected', 'version': '69c3c023af25edb5433a2db824d3e7cc328f0183', 'lessThan': 'c16b8c4cfb4fe2244cc33e469a93c1ab8684146b', 'versionType': 'git'}], 'programFiles': ['fs/smb/client/file.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', '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/smb/client/file.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: cifs: Fix missing credit release on failure in cifs_issue_read() Fix missing release of credits in the failure path in cifs_issue_read() lest retrying the subreq just overwrites the credits value. Added Reference https://git.kernel.org/stable/c/3a303f985c6bec8787c2ad4a16b39c14c5bcd765 Added Reference https://git.kernel.org/stable/c/86652704a7fd41a5a8459027e08640bbd1952826 Added Reference https://git.kernel.org/stable/c/b9ee1f0347bf56d019ca28ddff090234bb45b05c Added Reference https://git.kernel.org/stable/c/c16b8c4cfb4fe2244cc33e469a93c1ab8684146b