#VU94989 Improper locking in Linux kernel - CVE-2024-41088

Vulnerability identifier: #VU94989

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-2024-41088

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 mcp251xfd_tx_obj_from_skb(), mcp251xfd_tx_busy() and mcp251xfd_start_xmit() functions in drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c, within the mcp251xfd_open() and mcp251xfd_stop() functions in drivers/net/can/spi/mcp251xfd/mcp251xfd-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/f926c022ebaabf7963bebf89a97201d66978a025
https://git.kernel.org/stable/c/3e72558c1711d524e3150103739ddd06650e291b
https://git.kernel.org/stable/c/6c6b4afa59c2fb4d1759235f866d8caed2aa4729
https://git.kernel.org/stable/c/d8fb63e46c884c898a38f061c2330f7729e75510

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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.