CVE-2026-53214

The CVE-2026-53214 entry documents a Linux kernel IPv6 issue where addrconf_get_prefix_route() may return the fib6_null_entry sentinel, which has a NULL fib6_table pointer. If code subsequently sets a route’s expiration time without validating the entry, a null pointer dereference (NPD) can occur...

UBUNTU-CVE-2023-53189

In the Linux kernel, the following vulnerability has been resolved: ipv6/addrconf: fix a potential refcount underflow for idev Now in addrconfmodrstimer, reference idev depends on whether rstimer is not pending. Then modify rstimer timeout. There is a time gap in 1, during which if the pending...