#VU105000 NULL pointer dereference in Linux kernel - CVE-2025-21744
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105000
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-2025-21744
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 brcmf_txfinalize() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.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/3877fc67bd3d5566cc12763bce39710ceb74a97d
- https://git.kernel.org/stable/c/4e51d6d093e763348916e69d06d87e0a5593661b
- https://git.kernel.org/stable/c/68abd0c4ebf24cd499841a488b97a6873d5efabb
- https://git.kernel.org/stable/c/a2beefc4fa49ebc22e664dc6b39dbd054f8488f9
- https://git.kernel.org/stable/c/fbbfef2a5b858eab55741a58b2ac9a0cc8d53c58
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.14