CVE-2022-3595: Linux Kernel CIFS sess.c sess_free_buffer double free

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-18 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in Linux Kernel. It has been rated as problematic. Affected by this issue is the function sess_free_buffer of the file fs/cifs/sess.c of the component CIFS Handler. The manipulation leads to double free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211364.

Affected products

Linux kernel: before 6.1 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b854b4ee66437e6e1622fda90529c814978cb4ca
https://vuldb.com/?id.211364
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b854b4ee66437e6e1622fda90529c814978cb4ca
https://vuldb.com/?id.211364

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