CVE-2022-49822: linux
Vulnerability summary
CVE-2022-49822 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 01-05-2025PublishedVulnerability first disclosed.
- 01-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
+0.01 pp
From 0.19% on 22-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu109 products
- linuxAll versions (No fix recorded) | < 5.15.0-67.74
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1031.35
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 56c762eb9bee330bb4e6d11c589434f2904d3ab6, < 775d6625f96b26b90b9be9164b855ea2c471c0e5 | ≥ 56c762eb9bee330bb4e6d11c589434f2904d3ab6, < a9059e338fc000c0b87d8cf29e93c74fd703212e | ≥ 56c762eb9bee330bb4e6d11c589434f2904d3ab6, < 0a087842d10b5daa123ee5291e386cdd78413705 | ≥ 56c762eb9bee330bb4e6d11c589434f2904d3ab6, < 1dcdf5f5b2137185cbdd5385f29949ab3da4f00c | 5.0
- 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
Debian1 product
- linux< 6.0.10-1
3 vendors · 112 products