CVE-2022-49585 Details
Description
In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout. While reading sysctl_tcp_fastopen_blackhole_timeout, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.
A data race vulnerability has been identified in the Linux kernel's TCP implementation, specifically regarding the sysctl_tcp_fastopen_blackhole_timeout parameter. This vulnerability allows the timeout value to be changed concurrently while it is being read, potentially leading to inconsistent behavior. The issue has been addressed by adding a READ_ONCE() directive to the parameter's readers, ensuring safe access and preventing concurrent modification.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 1, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/021266ec640c7a4527e6cd4b7349a512b351de1d | kernel.org | Patch |
| https://git.kernel.org/stable/c/0dc2f19d8c2636cebda7976b5ea40c6d69f0d891 | kernel.org | Patch |
| https://git.kernel.org/stable/c/8afa5604e295046c02b79ccf9e2bbbf8d969d60e | kernel.org | Patch |
| https://git.kernel.org/stable/c/a77a75a0e7f397550ab039f96115103e78dd5c69 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | [email protected] |
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.12, < 5.10.134 >= 5.11, < 5.15.58 >= 5.16, < 5.18.15 5.19 rc1 5.19 rc2 5.19 rc3 5.19 rc4 5.19 rc5 5.19 rc6 5.19 rc7 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 1, 2025 | CVE Modified | CISA-ADP |
| Mar 10, 2025 | Initial Analysis | [email protected] |
| Feb 26, 2025 | New CVE Received | kernel.org |