CVE-2024-46868: firmware: qcom: uefisecapp: Fix deadlock in qcuefi_acquire()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-09-27 · updated 2026-06-17
Weakness: CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: uefisecapp: Fix deadlock in qcuefi_acquire() If the __qcuefi pointer is not set, then in the original code, we would hold onto the lock. That means that if we tried to set it later, then it would cause a deadlock. Drop the lock on the error path. That's what all the callers are expecting.

Affected products

Linux kernel: from 6.7 before 6.10.11; 6.11-rc1, 6.11-rc2, 6.11-rc3, 6.11-rc4, 6.11-rc5, 6.11-rc6 (+1) — fixed in 6.10.11

How to fix

Upgrade to a fixed version: Linux kernel 6.10.11. Check the vendor advisory for mitigations.

References

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