#VU94253 NULL pointer dereference in Linux kernel - CVE-2024-40921
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94253
Vulnerability risk: Low
CVSSv4.0: 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-2024-40921
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
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 br_mst_get_state(), br_mst_set_state() and br_mst_vlan_sync_state() functions in net/bridge/br_mst.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/09f4337c27f5bdeb8646a6db91488cc2f7d537ff
- https://git.kernel.org/stable/c/a6cc9e9a651b9861efa068c164ee62dfba68c6ca
- https://git.kernel.org/stable/c/d2dc02775fc0c4eacaee833a0637e5958884a8e5
- https://git.kernel.org/stable/c/36c92936e868601fa1f43da6758cf55805043509
- 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