Out-of-bounds read in Linux kernel - CVE-2024-40953
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94236
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-40953
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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 kvm_vcpu_on_spin() function in virt/kvm/kvm_main.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2024-40953
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/92c77807d938145c7c3350c944ef9f39d7f6017c
- https://git.kernel.org/stable/c/a937ef951bba72f48d2402451419d725d70dba20
- https://git.kernel.org/stable/c/95c8dd79f3a14df96b3820b35b8399bd91b2be60
- https://git.kernel.org/stable/c/49f683b41f28918df3e51ddc0d928cb2e934ccdb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.323
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.228
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.169
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.285
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.36