CVE-2022-49822

cifs: Fix connections leak when tlink setup failed

MEDIUM

5.5

CVSS Score

Published: May 1, 2025 at 02:09 PM UTC

Updated: June 17, 2026 at 05:19 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.0 ≤ v < 5.10.2585.0 ≤ v < 5.15.815.0 ≤ v < 6.0.105.0 ≤ v < 6.15.16 ≤ v < 6.0.1056c762eb9bee330bb4e6d11c589434f2904d3ab66.1 rc1 6.1 rc2 6.1 rc3 6.1 rc4 6.1 rc5

Vendor states this is fixed in 0a087842d10b5daa123ee5291e386cdd78413705 (fixed)

Vendor states this is fixed in 1dcdf5f5b2137185cbdd5385f29949ab3da4f00c (fixed)

Vendor states this is fixed in 775d6625f96b26b90b9be9164b855ea2c471c0e5 (fixed)

Vendor states this is fixed in a9059e338fc000c0b87d8cf29e93c74fd703212e (fixed)

Vendor states this is fixed in 5.0 (unaffected)

Vendor states this is fixed in 5.10.258 (unaffected)

Vendor states this is fixed in 5.15.81 (unaffected)

Vendor states this is fixed in 6.0.10 (unaffected)

Vendor states this is fixed in 6.1 (unaffected)