#VU90758 Improper locking in Linux kernel - CVE-2024-27435

Vulnerability identifier: #VU90758

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-2024-27435

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 nvme_alloc_admin_tag_set() and nvme_alloc_io_tag_set() functions in drivers/nvme/host/core.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

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External links
https://git.kernel.org/stable/c/149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8
https://git.kernel.org/stable/c/ff2f90f88d78559802466ad1c84ac5bda4416b3a
https://git.kernel.org/stable/c/6851778504cdb49431809b4ba061903d5f592c96
https://git.kernel.org/stable/c/262da920896e2f2ab0e3947d9dbee0aa09045818
https://git.kernel.org/stable/c/de105068fead55ed5c07ade75e9c8e7f86a00d1d

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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.