#VU94258 NULL pointer dereference in Linux kernel - CVE-2024-39506

Vulnerability identifier: #VU94258

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-2024-39506

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 lio_vf_rep_copy_packet() function in drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.19 - 4.19.316, 5.4 - 5.4.278, 5.10 - 5.10.220, 5.15 - 5.15.161, 6.1 - 6.1.94, 6.6 - 6.6.34

---

External links
https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2
https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79
https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347
https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c
https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee
https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4fea
https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa
https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.317
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.221
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.162
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.279
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.95
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?