#VU97818 Off-by-one in Linux kernel - CVE-2024-46852

Vulnerability identifier: #VU97818

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-2024-46852

CWE-ID: CWE-193

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 an off-by-one error within the cma_heap_vm_fault() function in drivers/dma-buf/heaps/cma_heap.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/84175dc5b2c932266a50c04e5ce342c30f817a2f
https://git.kernel.org/stable/c/eb7fc8b65cea22f9038c52398c8b22849e9620ea
https://git.kernel.org/stable/c/e79050882b857c37634baedbdcf7c2047c24cbff
https://git.kernel.org/stable/c/ea5ff5d351b520524019f7ff7f9ce418de2dad87

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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.