Improper locking in Linux kernel s390 kernel

1) Improper locking

EUVDB-ID: #VU96149

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-43832

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the make_folio_secure() and folio_wait_writeback() functions in arch/s390/kernel/uv.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

CPE2.3

External links

http://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7
http://git.kernel.org/stable/c/8736604ef53359a718c246087cd21dcec232d2fb
http://git.kernel.org/stable/c/b21aba72aadd94bdac275deab021fc84d6c72b16
http://git.kernel.org/stable/c/3f29f6537f54d74e64bac0a390fb2e26da25800d

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.