#VU90519 NULL pointer dereference in Linux kernel - CVE-2024-27046

Vulnerability identifier: #VU90519

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-2024-27046

CWE-ID: CWE-476

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 NULL pointer dereference within the nfp_fl_lag_do_work() function in drivers/net/ethernet/netronome/nfp/flower/lag_conf.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
https://git.kernel.org/stable/c/d746889db75a76aeee95fb705b8e1ac28c684a2e
https://git.kernel.org/stable/c/3b1e8a617eb0f4cdc19def530047a95b5abde07d
https://git.kernel.org/stable/c/928705e341010dd910fdece61ccb974f494a758f
https://git.kernel.org/stable/c/0d387dc503f9a53e6d1f6e9dd0292d38f083eba5
https://git.kernel.org/stable/c/c9b4e220dd18f79507803f38a55d53b483f6c9c3
https://git.kernel.org/stable/c/408ba7fd04f959c61b50db79c983484312fea642
https://git.kernel.org/stable/c/c8df9203bf22c66fa26e8d8c7f8ce181cf88099d
https://git.kernel.org/stable/c/9d8eb1238377cd994829f9162ae396a84ae037b2
https://git.kernel.org/stable/c/84e95149bd341705f0eca6a7fcb955c548805002

---

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.