CVE-2011-2525: Linux Kernel
High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.
The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call.
Affected products
Published 2012-02-02. Last modified 2026-06-16.