CVE-2026-64002
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < ecf45080a4d3f4526cacb8b14060fe3b49a6913b | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < 5b23a2ff379e70b6b9ff744a972b63e1f8f4d996 | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < 8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57 | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < 6512c57c4638ddec113bf42439361ba85a12048d | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < a7f4eefb6e1458431eef9fa20fb363320d185f76 | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < 155f90be5ee8be5b110ebc0b7da33c54c83b0208 | affected |
| Linux | Linux | 122ff243f5f104194750ecbc76d5946dd1eec934 < 87a1e0fe7776da7ab411be332b4be58ac8840d10 | affected |
| Linux | Linux | 3.16 | affected |
| Linux | Linux | 0 < 3.16 | unaffected |
| Linux | Linux | 5.10.259 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.210 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.176 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.143 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.93 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.35 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.12 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/ecf45080a4d3f4526cacb8b14060fe3b49a6913b
- https://git.kernel.org/stable/c/a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c
- https://git.kernel.org/stable/c/5b23a2ff379e70b6b9ff744a972b63e1f8f4d996
- https://git.kernel.org/stable/c/8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57
- https://git.kernel.org/stable/c/6512c57c4638ddec113bf42439361ba85a12048d
- https://git.kernel.org/stable/c/a7f4eefb6e1458431eef9fa20fb363320d185f76
- https://git.kernel.org/stable/c/155f90be5ee8be5b110ebc0b7da33c54c83b0208
- https://git.kernel.org/stable/c/87a1e0fe7776da7ab411be332b4be58ac8840d10
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