#VU104704 Improper locking in Linux kernel - CVE-2022-49132

Vulnerability identifier: #VU104704

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-2022-49132

CWE-ID: CWE-667

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 improper locking within the ath11k_pci_pm_suspend() and ath11k_pci_pm_resume() functions in drivers/net/wireless/ath/ath11k/pci.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/aeed776c00e804a0f7896db39c7c661cea34ee1f
https://git.kernel.org/stable/c/b4f4c56459a5c744f7f066b9fc2b54ea995030c5
https://git.kernel.org/stable/c/f3c5ef433da82d257337424b3647ce9dcb37d4b5
https://git.kernel.org/stable/c/fed4cef115ab21a18faf499b3fa9b9a4b544f941

---

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.