SB20240625133 - NULL pointer dereference in Linux kernel io_uring
Published: June 25, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240625133
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-2024-39371)
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_ring_buffer_select() 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/c2844d5e58576c55d8e8d4a9f74902d3f7be8044
- https://git.kernel.org/stable/c/43cfac7b88adedfb26c27834386992650f1642f3
- https://git.kernel.org/stable/c/65561b4c1c9e01443cb76387eb36a9109e7048ee
- https://git.kernel.org/stable/c/5fc16fa5f13b3c06fdb959ef262050bd810416a2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.95
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35