tcp: Fix data-races around sysctl_tcp_recovery.
Published Feb 26, 2025
4.7
MEDIUMCVSS 3.1
EPSS 0.19%
Description
While reading sysctl_tcp_recovery, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 4.4StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<4.4
- Version 4.19.254StatusunaffectedConstraints<=4.19.*
- Version 5.10.134StatusunaffectedConstraints<=5.10.*
- Version 5.15.58StatusunaffectedConstraints<=5.15.*
- Version 5.18.15StatusunaffectedConstraints<=5.18.*
- Version 5.19StatusunaffectedConstraints<=*
- Version 5.4.208StatusunaffectedConstraints<=5.4.*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 4.4 · < 4.19.254
- ≥ 4.20 · < 5.4.208
- ≥ 5.5 · < 5.10.134
- ≥ 5.11 · < 5.15.58
- ≥ 5.16 · < 5.18.15
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
No data.
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel-rt
Out of support scope
Red Hat Enterprise Linux 8
kernel
Out of support scope
Red Hat Enterprise Linux 8
kernel-rt
Out of support scope
Red Hat Enterprise Linux 9
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 1, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.19% (0.00186) | 7.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.18% (0.00178) | 7.54th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.01% (0.00014) | 1.40th | v4 (v2025.03.14) |
| Feb 27, 2025 | 0.04% (0.00044) | 12.72th | v3 (v2023.03.01) |
References (11)
- https://access.redhat.com/security/cve/CVE-2022-49574 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2348338 Issue Tracking
- https://git.kernel.org/stable/c/52ee7f5c4811ce6be1becd14d38ba1f8a8a0df81 Patch
- https://git.kernel.org/stable/c/92c35113c63306091df9211375eebd0abd8c2160 Patch
- https://git.kernel.org/stable/c/a31e2d0cb5cfa2aae3144cac04f25031d5d20fb4 Patch
- https://git.kernel.org/stable/c/c7a492db1f7c37c758a66915908677bd8bc5d368 Patch
- https://git.kernel.org/stable/c/d8781f7cd04091744f474a2bada74772084b9dc9 Patch
- https://git.kernel.org/stable/c/e7d2ef837e14a971a05f60ea08c47f3fed1a36e4 Patch
- https://lore.kernel.org/linux-cve-announce/2025022607-CVE-2022-49574-018f@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-49574
- https://www.cve.org/CVERecord?id=CVE-2022-49574
Change history (0)
No recorded changes yet.