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Permalink CVE-2026-64002
7.8 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
created 6 days, 6 hours ago Activity log
  • Created & dismissed (max. allowed matches exceeded) suggestion 6 days, 6 hours ago
ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()

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 products

Linux
  • <ecf45080a4d3f4526cacb8b14060fe3b49a6913b
  • <155f90be5ee8be5b110ebc0b7da33c54c83b0208
  • <6512c57c4638ddec113bf42439361ba85a12048d
  • =<6.18.*
  • <a7f4eefb6e1458431eef9fa20fb363320d185f76
  • <3.16
  • =<7.0.*
  • =<6.12.*
  • <a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c
  • =<6.1.*
  • =<*
  • =<6.6.*
  • <5b23a2ff379e70b6b9ff744a972b63e1f8f4d996
  • ==3.16
  • =<5.15.*
  • <8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57
  • =<5.10.*
  • <87a1e0fe7776da7ab411be332b4be58ac8840d10