CVE-2022-49586

MEDIUM

Linux Kernel 3.6-4.19.254, 4.20-5.4.208, 5.5-5.10.134, 5.11-5.15.58, 5.16-5.18.15 - Data Race in sysctl_tcp_fastopen

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctl_tcp_fastopen. While reading sysctl_tcp_fastopen, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

References (6)

Core 6

Core References

Patch

https://git.kernel.org/stable/c/03da610696a32578fc4f986479341ce9d430df08

Patch

https://git.kernel.org/stable/c/25d53d858a6c0b89a6e69e376c2a57c4f4c2c8cc

Patch

https://git.kernel.org/stable/c/22938534c611136f35e2ca545bb668073ca5ef49

Patch

https://git.kernel.org/stable/c/539d9ab79eba3974b479cad61a8688c41fe62e12

Patch

https://git.kernel.org/stable/c/448ab998947996a0a451f8229f19087964cf2670

Patch

https://git.kernel.org/stable/c/5a54213318c43f4009ae158347aa6016e3b9b55a

Scores

CVSS v3 4.7

EPSS 0.0018

EPSS Percentile 7.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-362

Status published

Products (21)

linux/Kernel 3.6.0 - 4.19.254linux

linux/Kernel 4.20.0 - 5.4.208linux

linux/Kernel 5.11.0 - 5.15.58linux

linux/Kernel 5.16.0 - 5.18.15linux

linux/Kernel 5.5.0 - 5.10.134linux

Linux/Linux < 3.6

Linux/Linux 2100c8d2d9db23c0a09901a782bb4e3b21bee298 - 03da610696a32578fc4f986479341ce9d430df08

Linux/Linux 2100c8d2d9db23c0a09901a782bb4e3b21bee298 - 22938534c611136f35e2ca545bb668073ca5ef49

Linux/Linux 2100c8d2d9db23c0a09901a782bb4e3b21bee298 - 25d53d858a6c0b89a6e69e376c2a57c4f4c2c8cc

Linux/Linux 2100c8d2d9db23c0a09901a782bb4e3b21bee298 - 448ab998947996a0a451f8229f19087964cf2670

... and 11 more

Published Feb 26, 2025

Tracked Since Feb 18, 2026