SB20250226421 - NULL pointer dereference in Linux kernel kvm
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226421
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-2022-49568)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the kvm_ioctl_create_device() function in virt/kvm/kvm_main.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/170465715a60cbb7876e6b961b21bd3225469da8
- https://git.kernel.org/stable/c/3616776bc51cd3262bb1be60cc01c72e0a1959cf
- https://git.kernel.org/stable/c/d4a5a79b780891c5cbdfdc6124d46fdf8d13dba1
- https://git.kernel.org/stable/c/e8bc2427018826e02add7b0ed0fc625a60390ae5
- https://git.kernel.org/stable/c/e91665fbbf3ccb268b268a7d71a6513538d813ac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.58