CVE-2024-50160 ALSA: hda/cs8409: Fix possible NULL dereference
A NULL pointer dereference in the Linux kernel's ALSA HDA driver can cause a system crash if memory allocation fails during control creation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50160?
CVE-2024-50160 is a medium-severity vulnerability in Linux kernel, published on 7 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda/cs8409: Fix possible NULL dereference
If snd_hda_gen_add_kctl fails to allocate memory and returns NULL, then NULL pointer dereference will occur in the next line.
Since dolphin_fixups function is a hda_fixup function which is not supposed to return any errors, add simple check before dereference, ignore the fail.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Weakness: CWE-476
Which versions are affected by CVE-2024-50160?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50160?
Apply the vendor's patch.
Is CVE-2024-50160 being exploited?
There is no known exploitation of CVE-2024-50160 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-52956, AZL-52975, BELL-CVE-2024-50160, DEBIAN-CVE-2024-50160, GHSA-crxp-pw8g-fqxp, UBUNTU-CVE-2024-50160.