kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails

A null pointer dereference exists in the linux kernel, such that when sfbinit fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system...

kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails

A null pointer dereference exists in the linux kernel, such that when sfbinit fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system...

CVE-2022-50356 net: sched: sfb: fix null pointer access issue when sfb_init() fails

In the Linux kernel, the following vulnerability has been resolved: net: sched: sfb: fix null pointer access issue when sfbinit fails When the default qdisc is sfb, if the qdisc of devqueue fails to be inited during mqprioinit, sfbreset is invoked to clear resources. In this case, the q-qdisc is...

PT-2022-35231 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions 2.6.39 through 5.15.75 Description: The issue is related to a null pointer access problem that occurs when the sfb init function fails. This problem was introduced in version 2.6.39 and fixed in version 5.15.76. The actu...