CVE-2022-49938

MediumCVSS 5.5/10Last modified Nov 5, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

cifs: fix small mempool leak in SMB2_negotiate()

In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= 9764c02fcbad40001fd3f63558d918e4d519bb75, < 9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0; >= 9764c02fcbad40001fd3f63558d918e4d519bb75, < 38a6b469bf22f153282fbe7d702a24e9eb43f50e; >= 9764c02fcbad40001fd3f63558d918e4d519bb75, < 27893dfc1285f80f80f46b3b8c95f5d15d2e66d0; 1ae6f05d4204d3a128bb9ba2c42e2a6c4ac687f1; >= 4.13.5, < 4.14
LinuxLinux4.14

References

Timeline

Published
Jun 18, 2025
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2022-49938: Medium severity, CVSS 5.5 | Vulnix