CVE-2022-49601
tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
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/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. While reading sysctl_tcp_fwmark_accept, 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.
3.16 ≤ v < 4.14.2903.16 ≤ v < 4.19.2543.16 ≤ v < 4.9.3253.16 ≤ v < 5.10.1343.16 ≤ v < 5.15.583.16 ≤ v < 5.18.153.16 ≤ v < 5.193.16 ≤ v < 5.4.2084.10 ≤ v < 4.14.2904.15 ≤ v < 4.19.2544.20 ≤ v < 5.4.2085.11 ≤ v < 5.15.585.16 ≤ v < 5.18.155.5 ≤ v < 5.10.1345.19 rc15.19 rc25.19 rc35.19 rc45.19 rc55.19 rc65.19 rc784f39b08d7868ce10eeaf640627cb89777f0ae93
Vendor states this is fixed in 13207f9485b5de68decf296ceb0046f5eabb2485 (fixed)
Vendor states this is fixed in 1a0008f9df59451d0a17806c1ee1a19857032fa8 (fixed)
Vendor states this is fixed in 45fc82706a97242539d6b841ddd7a077ec20757b (fixed)
Vendor states this is fixed in 526d8cf8824f613c72dba2155542295e70135f62 (fixed)
Vendor states this is fixed in a7386602a2fe2f6192477e8ede291a815da09d81 (fixed)
Vendor states this is fixed in abf70de2ec026ae8d7da4e79bec61888a880e00b (fixed)
Vendor states this is fixed in bf3134feffe61b7a0e21f60a04743f8da0958b53 (fixed)
Vendor states this is fixed in d4f65615db7fca3df9f7e79eadf937e6ddb03c54 (fixed)
Vendor states this is fixed in 3.16 (unaffected)
Vendor states this is fixed in 4.14.290 (unaffected)
Vendor states this is fixed in 4.19.254 (unaffected)
Vendor states this is fixed in 4.9.325 (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)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/13207f9485b5de68decf296ceb0046f5eabb2485
- https://git.kernel.org/stable/c/1a0008f9df59451d0a17806c1ee1a19857032fa8
- https://git.kernel.org/stable/c/45fc82706a97242539d6b841ddd7a077ec20757b
- https://git.kernel.org/stable/c/526d8cf8824f613c72dba2155542295e70135f62
- https://git.kernel.org/stable/c/a7386602a2fe2f6192477e8ede291a815da09d81
References (8)
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/13207f9485b5de68decf296ceb0046f5eabb2485Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1a0008f9df59451d0a17806c1ee1a19857032fa8Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/45fc82706a97242539d6b841ddd7a077ec20757bPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/526d8cf8824f613c72dba2155542295e70135f62Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a7386602a2fe2f6192477e8ede291a815da09d81Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/abf70de2ec026ae8d7da4e79bec61888a880e00bPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bf3134feffe61b7a0e21f60a04743f8da0958b53Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d4f65615db7fca3df9f7e79eadf937e6ddb03c54SSVC — 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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