CVE-2022-49575

tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.

MEDIUM
4.7
CVSS Score
Published: February 26, 2025 at 02:23 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.34 ≤ v < 4.19.2542.6.34 ≤ v < 5.10.1342.6.34 ≤ v < 5.15.582.6.34 ≤ v < 5.18.152.6.34 ≤ v < 5.192.6.34 ≤ v < 5.4.2084.20 ≤ v < 5.4.2085.11 ≤ v < 5.15.585.16 ≤ v < 5.18.155.5 ≤ v < 5.10.13436e31b0af58728071e8023cf8e20c5166b7007175.19 rc15.19 rc25.19 rc35.19 rc45.19 rc55.19 rc65.19 rc7
Vendor states this is fixed in 404c53ccdebd11f96954f4070cffac8e0b4d5cb6 (fixed)
Vendor states this is fixed in 492f3713b282c0e67e951cd804edd22eccc25412 (fixed)
Vendor states this is fixed in 7c6f2a86ca590d5187a073d987e9599985fb1c7c (fixed)
Vendor states this is fixed in a0f96c4f179cb3560078cefccef105e8f1701210 (fixed)
Vendor states this is fixed in cc133e4f4bc225079198192623945bb872c08143 (fixed)
Vendor states this is fixed in f4b0295be9a3c4260de4585fac4062e602a88ac7 (fixed)
Vendor states this is fixed in 2.6.34 (unaffected)
Vendor states this is fixed in 4.19.254 (unaffected)
Vendor states this is fixed in 5.10.134 (unaffected)
Vendor states this is fixed in 5.15.58 (unaffected)
Vendor states this is fixed in 5.18.15 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 5.4.208 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/404c53ccdebd11f96954f4070cffac8e0b4d5cb6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/492f3713b282c0e67e951cd804edd22eccc25412
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7c6f2a86ca590d5187a073d987e9599985fb1c7c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a0f96c4f179cb3560078cefccef105e8f1701210
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cc133e4f4bc225079198192623945bb872c08143
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f4b0295be9a3c4260de4585fac4062e602a88ac7

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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