CVE-2022-49822
cifs: Fix connections leak when tlink setup failed
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Timeline
ID reserved
By Linux
Published
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 56c762eb9bee330bb4e6d11c589434f2904d3ab6 – < 775d6625f96b26b90b9be9164b855ea2c471c0e5
- affected 56c762eb9bee330bb4e6d11c589434f2904d3ab6 – < a9059e338fc000c0b87d8cf29e93c74fd703212e
- affected 56c762eb9bee330bb4e6d11c589434f2904d3ab6 – < 0a087842d10b5daa123ee5291e386cdd78413705
- affected 56c762eb9bee330bb4e6d11c589434f2904d3ab6 – < 1dcdf5f5b2137185cbdd5385f29949ab3da4f00c
- affected 5.0
- unaffected < 5.0
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.81 – ≤ 5.15.*
- unaffected 6.0.10 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (4)
- https://git.kernel.org/stable/c/775d6625f96b26b90b9be9164b855ea2c471c0e5 (opens in a new tab)
- https://git.kernel.org/stable/c/a9059e338fc000c0b87d8cf29e93c74fd703212e (opens in a new tab)
- https://git.kernel.org/stable/c/0a087842d10b5daa123ee5291e386cdd78413705 (opens in a new tab)
- https://git.kernel.org/stable/c/1dcdf5f5b2137185cbdd5385f29949ab3da4f00c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49822)Record last updated .