CVE-2026-74505: ALSA: 6fire: Fix UAF at error handling during probe

Severity: unknown
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: 2026-08-15 · updated 2026-08-19

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: Fix UAF at error handling during probe Although 6fire driver had a few fixes for dealing with the early error handling during the probe phase, it forgot a pending URB before freeing the resources, which may lead to a UAF. This patch addresses it by doing the almost same cleanup procedure like the normal disconnect phase at the error path.

Affected products

Linux kernel: 2.6.39 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/11e2953d9f4c7c3d2af94a889c2d805c537d633f
https://git.kernel.org/stable/c/2de734dcbb210bd59983e13d36988acbcc122194
https://git.kernel.org/stable/c/49bc7741cd2761c703a292dc69245041ae8a67bd
https://git.kernel.org/stable/c/630c8d6a93cbd9b2a207f1a67ef1fd21af098b0c
https://git.kernel.org/stable/c/8b7ecb2446845fa8d1f1ce9aac6307caac50cfd5
https://git.kernel.org/stable/c/a0bb5b9d39e54888385dc399c899223299201fe6
https://git.kernel.org/stable/c/a54bf16965f896415c3337bc4fbb40fb11941d99
https://git.kernel.org/stable/c/d41bfea14ee6e063a953f6e72046088737c4e66c

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