Race condition within a thread in Linux kernel net



| Updated: 2025-05-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-49604
CWE-ID CWE-366
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) Race condition within a thread

EUVDB-ID: #VU104826

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49604

CWE-ID: CWE-366 - Race Condition within a Thread

Exploit availability: No

Description

The vulnerability allows a local user to corrupt data.

The vulnerability exists due to a data race within the ip_mtu_from_fib_result() function in net/ipv4/route.c. A local user can corrupt data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.19 - 4.19.253

CPE2.3 External links

https://git.kernel.org/stable/c/60c158dc7b1f0558f6cadd5b50d0386da0000d50
https://git.kernel.org/stable/c/7828309df0f89419a9349761a37c7d1b0da45697
https://git.kernel.org/stable/c/93fbc06da1d819f3981a7bd7928c3641ea67b364
https://git.kernel.org/stable/c/b96ed5ccb09ae71103023ed13acefb194f609794
https://git.kernel.org/stable/c/e364b5f6ffbfc457a997ad09a7baa16c19581edc
https://git.kernel.org/stable/c/eb15262128b793e4b1d1c4514d3e6d19c3959764
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.254


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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