NULL pointer dereference in Linux kernel microchip lan966x driver

1) NULL pointer dereference

EUVDB-ID: #VU90610

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-2024-26723

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference within the lan966x_lag_set_aggr_pgids() function in drivers/net/ethernet/microchip/lan966x/lan966x_lag.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/b9357489c46c7a43999964628db8b47d3a1f8672
https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477c
https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1
https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e

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.