#VU91468 Race condition in Linux kernel - CVE-2024-35798

Vulnerability identifier: #VU91468

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-35798

CWE-ID: CWE-362

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 escalate privileges on the system.

The vulnerability exists due to a race condition within the read_extent_buffer_pages() function in fs/btrfs/extent_io.c. A local user can escalate privileges on the system.

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/0427c8ef8bbb7f304de42ef51d69c960e165e052
https://git.kernel.org/stable/c/3a25878a3378adce5d846300c9570f15aa7f7a80
https://git.kernel.org/stable/c/2885d54af2c2e1d910e20d5c8045bae40e02fbc1
https://git.kernel.org/stable/c/ef1e68236b9153c27cb7cf29ead0c532870d4215

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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.