SB20250226336 - Out-of-bounds read in Linux kernel kernel fpu
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226336
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) Out-of-bounds read (CVE-ID: CVE-2022-49557)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the fpu_alloc_guest_fpstate() function in arch/x86/kernel/fpu/core.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/9cf15ebb7dedfe2f27120743b8ea8441c99ac73c
- https://git.kernel.org/stable/c/c181acbd1a427859d5fda543b95fbae28f7f6068
- https://git.kernel.org/stable/c/d187ba5312307d51818beafaad87d28a7d939adf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19