The vulnerability of the idletimer_tg_create() function in the net/netfilter/xt_IDLETIMER.c module of the netfilter component of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the idletimertgcreate function in the net/netfilter/xtIDLETIMER.c module of the netfilter component in the Linux operating system’s kernel is related to the use of uninitialized variables. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2021-47451: Use of Uninitialized Resource

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtIDLETIMER: fix panic that occurs when timertype has garbage value Currently, when the rule related to IDLETIMER is added, idletimertg timer structure is initialized by kmalloc on executing idletimertgcreate function...