#VU94985 Improper locking in Linux kernel - CVE-2024-42140
Vulnerability identifier: #VU94985
Vulnerability risk: Low
CVSSv4.0: 4.3 [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-2024-42140
CWE-ID:
CWE-667
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the machine_kexec_mask_interrupts() function in arch/riscv/kernel/machine_kexec.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
https://git.kernel.org/stable/c/bb80a7911218bbab2a69b5db7d2545643ab0073d
https://git.kernel.org/stable/c/653deee48a4682ea17a05b96fb6842795ab5943c
https://git.kernel.org/stable/c/7692c9b6baacdee378435f58f19baf0eb69e4155
https://git.kernel.org/stable/c/484dd545271d02d1571e1c6b62ea7df9dbe5e692
https://git.kernel.org/stable/c/c562ba719df570c986caf0941fea2449150bcbc4
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
