Improper locking in Linux kernel spi mcp251xfd driver

1) Improper locking

EUVDB-ID: #VU94989

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-2024-41088

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 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

External links

http://git.kernel.org/stable/c/f926c022ebaabf7963bebf89a97201d66978a025
http://git.kernel.org/stable/c/3e72558c1711d524e3150103739ddd06650e291b
http://git.kernel.org/stable/c/6c6b4afa59c2fb4d1759235f866d8caed2aa4729
http://git.kernel.org/stable/c/d8fb63e46c884c898a38f061c2330f7729e75510

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.