CVE-2021-47125

In the Linux kernel, the following vulnerability has been resolved: schhtb: fix refcount leak in htbparenttoleafoffload The commit ae81feb7338c "schhtb: fix null pointer dereference on a null newq" fixes a NULL pointer dereference bug, but it is not correct. Because htbgrafthelper properly handle...

CVE-2021-47125

CVE-2021-47125 concerns a Linux kernel local vulnerability due to a refcount leak in the HTB offload path. The root cause was an incorrect NULL handling around qdisc_refcount_inc in htb_parent_to_leaf_offload, which could leak references if new_q was NULL. The fix adds a NULL pointer check to gua...