SB2024061405 - Integer overflow in Linux kernel x86 turbostat
Published: June 14, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024061405
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) Integer overflow (CVE-ID: CVE-2021-46940)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow within the idx_to_offset() and update_msr_sum() functions in tools/power/x86/turbostat/turbostat.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/ea6803ff2cd1a2d7d880256bf562172b708a76ff
- https://git.kernel.org/stable/c/dbdf22fc825fdb1d97f23230064e0f9819471628
- https://git.kernel.org/stable/c/337b1546cde87fb8588ddaedf0201b769baa572a
- https://git.kernel.org/stable/c/13a779de4175df602366d129e41782ad7168cef0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13