#VU104671 Improper locking in Linux kernel - CVE-2022-49512

Vulnerability identifier: #VU104671

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-2022-49512

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 denali_pci_probe() and denali_pci_remove() functions in drivers/mtd/nand/raw/denali_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

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External links
https://git.kernel.org/stable/c/3830dbdfb9a4aec680e43ed80b9f23db7a88eac9
https://git.kernel.org/stable/c/3a745b51cddafade99aaea1b93aad31e9614e230
https://git.kernel.org/stable/c/3c68daf4a368cd9e63ae5a2145c9e4a6f838c166
https://git.kernel.org/stable/c/87149cf9186201a63f0e0b93d9fa93d480bcb771
https://git.kernel.org/stable/c/efea1dd176edd17c8252051b7de6957f06efc394

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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.