SB2024093076 - Improper Initialization in Linux kernel x86 hyperv
Published: September 30, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024093076
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) Improper Initialization (CVE-ID: CVE-2024-46864)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the hv_machine_shutdown() function in arch/x86/kernel/cpu/mshyperv.c, within the EXPORT_SYMBOL_GPL(), register_syscore_ops() and wrmsrl() functions in arch/x86/hyperv/hv_init.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/2ae1beb3ab4f28868cc5d1541d05e1fbee3ad825
- https://git.kernel.org/stable/c/d6f018a3b49d0a94ddbd0e479c2af6b19724e434
- https://git.kernel.org/stable/c/b9af6418279c4cf73ca073f8ea024992b38be8ab
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.52