CVE-2024-43896: ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL

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: 2024-08-26 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL Call efi_rt_services_supported() to check that efi.get_variable exists before calling it.

Affected products

Linux kernel: from 6.9 before 6.10.5; 6.11-rc1, 6.11-rc2 — fixed in 6.10.5

How to fix

Upgrade to a fixed version: Linux kernel 6.10.5. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/5b6baaa7cbd77ff980516bad38bbc5a648bb5158
https://git.kernel.org/stable/c/dc268085e499666b9f4f0fcb4c5a94e1c0b193b3

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