NULL pointer dereference in Linux kernel - CVE-2024-42254
Published: August 8, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU95558
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-42254
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
IBM Qradar SIEM
IBM Security Guardium
IBM Qradar SIEM
IBM Security Guardium
How to mitigate CVE-2024-42254
Install update from vendor's website.
Linux kernel - addressed in versions 6.6.84, 6.10.1, 6.11
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30
External 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