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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-52909

ip6_vti: set netns_immutable on the fallback device.

Description

In the Linux kernel, the following vulnerability has been resolved: ip6_vti: set netns_immutable on the fallback device. john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable flag on the per-netns fallback tunnel device (ip6_vti0). Other similar tunnel drivers (like ip6_tunnel, sit, ip6_gre, and ip_tunnel) correctly set this flag during their fallback device initialization to prevent them from being moved to another network namespace.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 61220ab349485d911083d0b7990ccd3db6c63297 to < 12acc977838c943636fb01e2f3087d2e4cc3b7ccaffected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < 7f28e3948c59481f8db9c9638e204258d26b4e41affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < 12c65e2c7fef507551bd7b52123598a761662c01affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < f4b6b4af7ef0661ac153c6f7eb1030aa8482c1a3affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < c5dbd669db5a426b3025512322e1bf2cdbe14305affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < ecf8904067dcba0dad86ece80874841e60317885affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < dcdce3bc9f08026ff3739ee7339e1bef526fc5f3affected
  • 61220ab349485d911083d0b7990ccd3db6c63297 to < d289d5307762d1838aaece22c6b6fcad9e8865f9affected

Linux Linux

Default version status: affected

  • 3.15affected
  • 0 to < 3.15unaffected
  • 5.10.260 to ≤ 5.10.*unaffected
  • 5.15.211 to ≤ 5.15.*unaffected
  • 6.1.177 to ≤ 6.1.*unaffected
  • 6.6.144 to ≤ 6.6.*unaffected
  • 6.12.95 to ≤ 6.12.*unaffected
  • 6.18.36 to ≤ 6.18.*unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References