CVE-2026-64002

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Source
https://cve.org/CVERecord?id=CVE-2026-64002
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64002.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-64002
Downstream
Published
2026-07-19T14:56:19Z
Modified
2026-08-12T03:30:12Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()

ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_reserved_ports too soon.

Only after unregister_net_sysctl_table() we can be sure no threads can possibly use the sysctls, including /proc/sys/net/ipv4/ip_local_reserved_ports.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64002.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
122ff243f5f104194750ecbc76d5946dd1eec934
Fixed
ecf45080a4d3f4526cacb8b14060fe3b49a6913b
Fixed
a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c
Fixed
5b23a2ff379e70b6b9ff744a972b63e1f8f4d996
Fixed
8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57
Fixed
6512c57c4638ddec113bf42439361ba85a12048d
Fixed
a7f4eefb6e1458431eef9fa20fb363320d185f76
Fixed
155f90be5ee8be5b110ebc0b7da33c54c83b0208
Fixed
87a1e0fe7776da7ab411be332b4be58ac8840d10

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64002.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.16.0
Fixed
5.10.259
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.210
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.176
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.143
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.93
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.35
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.12

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64002.json"