Improper locking in Linux kernel net netdevsim driver

1) Improper locking

EUVDB-ID: #VU91453

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-2024-26681

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 nsim_dev_trap_report_work() function in drivers/net/netdevsim/dev.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

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/0193e0660cc6689c794794b471492923cfd7bfbc
https://git.kernel.org/stable/c/6eecddd9c3c8d6e3a097531cdc6d500335b35e46
https://git.kernel.org/stable/c/d91964cdada76740811b7c621239f9c407820dbc
https://git.kernel.org/stable/c/ba5e1272142d051dcc57ca1d3225ad8a089f9858

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.