CVE-2026-98026

The Linux kernel contains a vulnerability in the net: bridge: mcast component where the br_multicast_del_port_group function unlists a port group without using the proper RCU helper to preserve the next pointer. Consequently, the port group is freed immediately without waiting for the RCU grace p...

CVE-2026-98025

A heap overflow vulnerability exists in the Linux kernel 's cx82310_eth USB network driver. The issue occurs when a router sends a reboot sentinel with a length of 0xffff. Because this specific length bypasses the standard MTU bound check , the driver fails to cap the size of the incomplete packe...

CVE-2026-98024

A vulnerability exists in the Linux kernel (s390/ism) where the ism_alloc_dmb() function incorrectly used kfree() instead of folio_put() during an error exit for memory allocated via folio_alloc(). This flaw could lead to slab allocator corruption . The fix involves using folio_put() and resettin...

CVE-2026-98023

The Linux kernel contains a vulnerability in the VXLAN driver where it fails to prevent the configuration of dynamic FDB entries that reference a nexthop ID. Because the per-nexthop FDB list is only protected by a per-device hash lock—which is insufficient when multiple VXLAN devices share the sa...

CVE-2026-98022

The Linux kernel contains a vulnerability where several subsystems (pfifo_fast , tun , and tap ) allocate ring buffers based on dev->tx_queue_len without an upper bound. An unprivileged user using unshare -Urn can set an excessively large tx_queue_len to exhaust global memory via oversized rin...

CVE-2026-98021

The Linux kernel contains a vulnerability where rtnl_create_link() assigns IFLA_TXQLEN directly to dev->tx_queue_len without proper validation. This allows a device created with an oversized txqueuelen (e.g., 500000) to bypass the S16_MAX cap, leading to oversized ring allocations in pfifo_fas...

CVE-2026-98019

The Linux kernel contains a vulnerability in the BPF subsystem where certain functions failed to mark underlying scalar registers as precise . Specifically, check_func_arg() allowed bpf_register_is_null() for nullable arguments without marking the register as precise, and check_helper_call() enfo...

CVE-2026-98020

A vulnerability exists in the Linux kernel 's pds_core component where a race condition can occur during a BAR unmap on reset. Specifically, the error path in pdsc_map_bars() within pdsc_reset_prepare() and pdsc_reset_done() can clear or iounmap cmd_regs without holding the devcmd_lock. Additiona...

CVE-2026-98018

A vulnerability exists in the Linux kernel within the net: mctp: i3c component. The root cause is that mctp_i3c_probe() drops the busdevs_lock prematurely after finding the matching bus. This allows a concurrent I3C_NOTIFY_BUS_REMOVE event to unregister and free the bus netdev before the probe ca...

CVE-2026-98017

The Linux kernel contains a vulnerability in the net/sched component where an RTM_NEWQDISC request can cause a clsact to bind a populated shared ingress block during ->init() . If the request contains an invalid TCA_RATE , the estimator setup fails, causing the unwind process to synchronously ...

CVE-2026-98016

The Linux kernel contains a use-after-free race condition within the net/mlx5e component, specifically in the sample_restore_put() function. The vulnerability occurs during the concurrent teardown of TC sample rules sharing the same restore context; a thread may re-read restore->count after dr...

CVE-2026-98015

The Linux kernel contains a use-after-free vulnerability in the net/mlx5: E-Switch component within the mlx5_eswitch_termtbl_put() function. The issue arises because the tt->ref_count cleanup check occurs after the termtbl_mutex has been released, allowing a race condition where one caller fre...

CVE-2026-98014

The Linux kernel contains a vulnerability in the net/mlx5 driver related to E-Switch functionality. During FW-fatal recovery (where dev->state == INTERNAL_ERROR), a failure in esw_update_vport_rx_mode() leaves vport->allmulti_rule intact. This causes esw_update_vport_mc_promisc() to add ent...

CVE-2026-98013

The Linux kernel contains a vulnerability in the net/sched component within the fq_pie qdisc. The fq_pie_change() function improperly accepts any quantum value from userspace, including a value of 1. When combined with a crafted size table where qdisc_pkt_len reaches approximately 2 GiB , a quant...

CVE-2026-98011

The Linux kernel contains a vulnerability in the net/sched: hhf component where the hhf_change() function accepts an unvalidated quantum from userspace. A user with CAP_NET_ADMIN privileges can provide a quantum of 1 combined with a crafted size table to cause the deficit-refill loop to spin appr...

CVE-2026-98012

The Linux kernel contains a vulnerability in the net/sched: sfq component where the sfq_change() function fails to properly restrict the quantum value. By providing a crafted size table causing qdisc_pkt_len to reach approximately 2 GiB, an attacker can set quantum=1 to trigger a deficit-refill l...

CVE-2026-98009

The Linux kernel contains a vulnerability in the net/sched: ets component where the ets_qdisc_change() function falls back to psched_mtu() without a floor for bands lacking an explicit quantum. An attacker with CAP_NET_ADMIN privileges can use a crafted size table to cause qdisc_pkt_len to reach ...

CVE-2026-98010

The Linux kernel contains a vulnerability in the net/sched subsystem where the drr_change_class() function fails to properly clamp the quantum value during a fallback to psched_mtu(). Specifically, while explicit zeros are rejected, the absence of a floor allows a crafted size table to cause qdis...

CVE-2026-98008

The Linux kernel contains a NULL pointer dereference vulnerability within the net: macb driver. When the device tree describes a fixed-link without an "mdio" child node, the macb_mii_init() function returns early without allocating the MDIO bus, leaving bp->mii_bus as NULL . This causes a kern...

CVE-2026-98007

The Linux kernel contains a vulnerability in the bpf_loop() helper function where the nr_loops argument is incorrectly declared as ARG_ANYTHING. This allows privileged programs to pass pointer values instead of scalars. Because the verifier marks these registers as precise, passing a pointer trig...