What’s Vulnerable › Vulnerabilities

CVE-2022-49593: tcp: Fix a data-race around sysctl_tcp_probe_interval.

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-362

Description

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

Affected products

• Linux kernel: from 4.1 before 4.14.290; from 4.15 before 4.19.254; from 4.20 before 5.4.208; from 5.5 before 5.10.134; from 5.11 before 5.15.58; from 5.16 before 5.18.15 — fixed in 4.14.290, 4.19.254, 5.10.134, 5.15.58, 5.18.15, 5.4.208

How to fix

Upgrade to a fixed version: Linux kernel 4.14.290, 4.19.254, 5.10.134, 5.15.58. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2a85388f1d94a9f8b5a529118a2c5eaa0520d85c
• https://git.kernel.org/stable/c/73a11588751a2c13f25d9da8117efc9a79b1843f
• https://git.kernel.org/stable/c/80dabd089086e6553b7acfcff2ec223bdada87a1
• https://git.kernel.org/stable/c/b14cc8afbbcbc6dce4797913c0b85266b897f541
• https://git.kernel.org/stable/c/b3798d3519eda9c409bb0815b0102f27ec42468d
• https://git.kernel.org/stable/c/c61aede097d350d890fa1edc9521b0072e14a0b8
• https://git.kernel.org/stable/c/e6b6f027e2854a51f345a5e3e808d7a88001d4f8

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