EUVD-2026-81911

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: clamp quantum and initialquantum in change path The fq change path accepts TCAFQQUANTUM in 1, INTMAX and TCAFQINITIALQUANTUM up to INTMAX, while fqinit already clamps to 1, 120. A user can override the init clamp v...

CVE-2026-90050 net/sched: fq: clamp quantum and initial_quantum in change path

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: clamp quantum and initialquantum in change path The fq change path accepts TCAFQQUANTUM in 1, INTMAX and TCAFQINITIALQUANTUM up to INTMAX, while fqinit already clamps to 1, 120. A user can override the init clamp v...

CVE-2024-53044

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

CVE-2024-53044

CVE-2024-53044 affects the Linux kernel net/sched component (sch_api) and is tied to the tcf_block_get_ext() path. The root cause is an xa_insert() error handling route, which can mis-handle a failure when the same block index is requested for ingress and egress, leading to a busy block condition...

CVE-2021-47595 net/sched: sch_ets: don't remove idle classes from the round-robin list

In the Linux kernel, the following vulnerability has been resolved: net/sched: schets: don't remove idle classes from the round-robin list Shuang reported that the following script: 1 tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 mauseza...

CVE-2022-48645

CVE-2022-48645 – Linux kernel ENETC offload: The TSN features (taprio, cbs, gate, police) could be configured via PF registers but were not intended to be accessible from VFs. Accessing VF-exposed registers could trigger kernel paging faults and a crash. The fix split enetc_setup_tc() into separa...

Null pointer dereference

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service system crash via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdiscgraft in...