CVE-2022-49822
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0a087842d10b5daa123ee5291e386cdd78413705 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0a087842d10b5daa123ee5291e386cdd78413705Patch
- https://git.kernel.org/stable/c/1dcdf5f5b2137185cbdd5385f29949ab3da4f00cPatch
- https://git.kernel.org/stable/c/a9059e338fc000c0b87d8cf29e93c74fd703212ePatch
- https://git.kernel.org/stable/c/775d6625f96b26b90b9be9164b855ea2c471c0e5