#VU93610 Memory leak in Linux kernel - CVE-2024-26844

Vulnerability identifier: #VU93610

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-2024-26844

CWE-ID: CWE-401

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 memory leak within the bio_copy_user_iov() function in block/blk-map.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/8fc80874103a5c20aebdc2401361aa01c817f75b
https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956
https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b
https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6

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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.