Linux Kernel addrconf_dad_failure Buffer Overflow DoS

The vulnerability in the addrconfdadfailure function within the net/ipv6/addrconf.c component of the Linux kernel operating system is related to an improper implementation of the control flow. Exploitation of this vulnerability enables a remote attacker to compromise the confidentiality, integrit...

CVE-2026-74398

In the Linux kernel, the following vulnerability has been resolved: ipv6: addrconf: bail out of dadfailure when state is no longer POSTDAD addrconfdadfailure transitions ifp-state from DAD to POSTDAD via addrconfdadend, which drops ifp-lock on return. The lock is re-acquired after...

CVE-2026-74398

CVE-2026-74398 affects the Linux kernel IPv6 address configuration (addrconf) DAD flow. The vulnerability arises when addrconf_dad_failure() transitions an interface’s state from DAD to POSTDAD and, due to a window where the interface lock is dropped, a concurrent ipv6_del_addr() can set ifp->...

CVE-2026-74398: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: addrconf: bail out of dadfailure when state is no longer POSTDAD addrconfdadfailure transitions ifp-state from DAD to POSTDAD via addrconfdadend, which drops ifp-lock on return. The lock is re-acquired after...

Linux Kernel Security Vulnerabilities

The Linux kernel has a security vulnerability. This vulnerability stems from improper handling of the state of the addrconfdadfailure function in the ipv6 addrconf module. When addresses are deleted concurrently, it is possible to access already released list items, leading to a kernel crash...