Race condition in Linux kernel

1) Race condition

EUVDB-ID: #VU76579

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3522

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a race condition within the hugetlb_no_page() function in the mm/hugetlb.c. A local user can exploit the race and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: before 6.1 rc1

External links

http://bugzilla.redhat.com/show_bug.cgi?id=2150979
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f9bf6c03eca1077cae8de0e6d86427656fa42a9b

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.