Input validation error in Linux kernel io_uring



| Updated: 2025-05-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-35831
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU94128

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-2024-35831

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the __io_uaddr_map() function in io_uring/io_uring.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.6 - 6.8.1

CPE2.3 External links

https://git.kernel.org/stable/c/0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62
https://git.kernel.org/stable/c/712e2c8415f55a4a4ddaa98a430b87f624109f69
https://git.kernel.org/stable/c/4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3a
https://git.kernel.org/stable/c/67d1189d1095d471ed7fa426c7e384a7140a5dd7
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2


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.



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