CVE-2023-46862 Null dereference in n/a
A race condition in the Linux kernel io_uring subsystem causes a NULL pointer dereference, leading to a denial of service.
- 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-2023-46862?
CVE-2023-46862 is a medium-severity vulnerability in Linux kernel, published on 29 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.
Weakness: CWE-476
Which versions are affected by CVE-2023-46862?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-46862?
Apply the vendor's patch.
Is CVE-2023-46862 being exploited?
There is no known exploitation of CVE-2023-46862 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-31816, BELL-CVE-2023-46862, DEBIAN-CVE-2023-46862, GHSA-cchg-v957-9qp4, UBUNTU-CVE-2023-46862.