SB2024080841 - NULL pointer dereference in Linux kernel io_uring
Published: August 8, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024080841
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2024-42254)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the io_alloc_pbuf_ring() function in io_uring/kbuf.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/68d19af95a353f5e2b021602180b65b303eba99d
- https://git.kernel.org/stable/c/bcc87d978b834c298bbdd9c52454c5d0a946e97e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.84