CVE-2023-53350: accel/qaic: Fix slicing memory leak

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-17 · updated 2026-06-17
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Fix slicing memory leak The temporary buffer storing slicing configuration data from user is only freed on error. This is a memory leak. Free the buffer unconditionally.

Affected products

Linux kernel: from 6.4 before 6.4.12; 6.5-rc1, 6.5-rc2, 6.5-rc3, 6.5-rc4, 6.5-rc5, 6.5-rc6 — fixed in 6.4.12

How to fix

Upgrade to a fixed version: Linux kernel 6.4.12. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/2d956177b7c96e62fac762a3b7da4318cde27a73
https://git.kernel.org/stable/c/df45c3e46cdb41f486eecb4277fbcc4c1ffbf9be

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