CVE-2022-49822 Details
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix connections leak when tlink setup failed If the tlink setup failed, lost to put the connections, then the module refcnt leak since the cifsd kthread not exit. Also leak the fscache info, and for next mount with fsc, it will print the follow errors: CIFS: Cache volume key already in use (cifs,127.0.0.1:445,TEST) Let's check the result of tlink setup, and do some cleanup.
A vulnerability in the Linux kernel's CIFS (Common Internet File System) module has been addressed, which involved a connection leak when the tlink (transport link) setup failed. This failure caused the module's reference count to leak, preventing the associated kthread from exiting. Additionally, the fscache information was leaked, leading to errors in subsequent mounts using fscache, such as 'CIFS: Cache volume key already in use.' The vulnerability arose because the tlink setup's failure was not properly cleaned up, causing lingering connection issues.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0a087842d10b5daa123ee5291e386cdd78413705 | kernel.org | Patch |
| https://git.kernel.org/stable/c/1dcdf5f5b2137185cbdd5385f29949ab3da4f00c | kernel.org | Patch |
| https://git.kernel.org/stable/c/775d6625f96b26b90b9be9164b855ea2c471c0e5 | kernel.org | |
| https://git.kernel.org/stable/c/a9059e338fc000c0b87d8cf29e93c74fd703212e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.0, < 5.15.81 >= 5.16, < 6.0.10 6.1 rc1 6.1 rc2 6.1 rc3 6.1 rc4 6.1 rc5 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 1, 2026 | CVE Modified | kernel.org |
| Nov 10, 2025 | Initial Analysis | [email protected] |
| May 1, 2025 | New CVE Received | kernel.org |