#VU104581 NULL pointer dereference in Linux kernel - CVE-2022-49476
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104581
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-2022-49476
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 mt7921e_unregister_device() and mt7921_pci_remove() functions in drivers/net/wireless/mediatek/mt76/mt7921/pci.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/09693f5b636fb3f6dd56fd943226fc1bbc600b51
- https://git.kernel.org/stable/c/677e669973bf5460705bc65033445ea9f6615999
- https://git.kernel.org/stable/c/ad483ed9dd5193a54293269c852a29051813b7bd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19