SB2024061070 - Memory leak in Linux kernel powerpc kvm
Published: June 10, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024061070
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) Memory leak (CVE-ID: CVE-2021-47296)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the kvm_arch_vcpu_ioctl() function in arch/powerpc/kvm/powerpc.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/9bafc34dc4ad0cef18727c557f21ed3c3304df50
- https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151
- https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533
- https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209
- https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.199
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.136