CVE-2022-49596

tcp: Fix data-races around sysctl_tcp_min_snd_mss.

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 data-races around sysctl_tcp_min_snd_mss. While reading sysctl_tcp_min_snd_mss, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

Affected

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

Linux Kernel · Linux

95%

v ≥ 3.16.69v ≥ 4.14.127v ≥ 4.19.52v ≥ 4.4.182v ≥ 4.9.182v ≥ 5.1.113.16.69 ≤ v < 3.174.14.127 ≤ v < 4.154.19.52 ≤ v < 4.204.4.182 ≤ v < 4.54.9.182 ≤ v < 4.105.1.11 ≤ v < 5.25.1.11 ≤ v < 5.4.2085.11 ≤ v < 5.15.585.16 ≤ v < 5.18.155.2 ≤ v < 5.10.1345.2 ≤ v < 5.15.585.2 ≤ v < 5.18.155.2 ≤ v < 5.195.2 ≤ v < 5.4.2085.5 ≤ v < 5.10.1342efabe3e1491f10bf3cf82ae1a371755ba054a1b3.16.69 4.14.127 4.19.52 4.4.182 4.9.182 5.1.11 5.19 rc1 5.19 rc2 5.19 rc3 5.19 rc4 5.19 rc5 5.19 rc6 5.19 rc75f3e2bf008c2221478101ee72f5cb4654b9fc3636b7e7997ad3505db7de85ff12276fc84659481d37f9f8a37e563c67b24ccd57da1d541a95538e8d98e39cbc03dafa3731d22533f869bf326c0e6e6f8cd6f35b8421ff20365ff711c0ac7647fd70e9af7e757d052f3b8ce739d068a1e890643376c16b7a9

Vendor states this is fixed in 0d8a39feb58910a7f7746b1770ee5578cc551fe6 (fixed)

Vendor states this is fixed in 0fc9357282df055e30990b29f4b7afa53ab42cdb (fixed)

Vendor states this is fixed in 78eb166cdefcc3221c8c7c1e2d514e91a2eb5014 (fixed)

Vendor states this is fixed in 97992e8feff33b3ae154a113ec398546bbacda80 (fixed)

Vendor states this is fixed in fdb96b69f5909ffcdd6f1e0902219fc6d7689ff7 (fixed)

Affected range stops below 3.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.5, so it looks safe — our inference, not a vendor statement

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 5.2 (unaffected)

Vendor states this is fixed in 5.4.208 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references