CVE-2022-48646 sfc/siena: fix null pointer dereference in efx_hard_start_xmit
A null pointer dereference in the sfc/siena network driver can cause a system crash, requiring a kernel patch to prevent denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-48646?
CVE-2022-48646 is a medium-severity vulnerability in Linux kernel, published on 28 Apr 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:
sfc/siena: fix null pointer dereference in efx_hard_start_xmit
Like in previous patch for sfc, prevent potential (but unlikely) NULL pointer dereference.
Weakness: CWE-476
Which versions are affected by CVE-2022-48646?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48646?
Apply the vendor's patch.
Is CVE-2022-48646 being exploited?
There is no known exploitation of CVE-2022-48646 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48646, GHSA-fq8p-83c5-pghx, ROOT-OS-DEBIAN-11-CVE-2022-48646, ROOT-OS-UBUNTU-2204-CVE-2022-48646, UBUNTU-CVE-2022-48646.