#VU104892 Resource management error in Linux kernel - CVE-2022-49522

Vulnerability identifier: #VU104892

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-2022-49522

CWE-ID: CWE-399

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 resource management error within the jz4740_mmc_acquire_dma_channels() function in drivers/mmc/host/jz4740_mmc.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/353298cadbd4c7d8e8a16d6000066414694933c3
https://git.kernel.org/stable/c/7923f95997a79cef2ad161a2facae64c25a0bca0
https://git.kernel.org/stable/c/807f90f1960a59dc557542b818c484a8db9ac978
https://git.kernel.org/stable/c/90281cadf5077f2d2bec8b08c2ead1f8cd12660e
https://git.kernel.org/stable/c/a828920b9ec0d89d3011198d482b7fe224d2de19
https://git.kernel.org/stable/c/afadb04f1d6e74b18a253403f5274cde5e3fd7bd

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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.