GSD-2022-1001608 ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
A potential deadlock in the Linux Kernel ALSA PCM subsystem can cause a denial of service via concurrent access to buffer and mmap locks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001608?
GSD-2022-1001608 is a vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.19 by commit abedf0d08c79d76da0d6fa0d5dbbc98871dcbc2e, it was introduced in version v5.16.18 by commit 4d1b0ace2d56dc27cc4921eda7fae57f77f03eb5. For more details please see the references link.
Which versions are affected by GSD-2022-1001608?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001608?
No fix has been published for GSD-2022-1001608 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1001608 being exploited?
There is no known exploitation of GSD-2022-1001608 in the wild and no public exploit code.