CVE-2026-74310 vhost/net: complete zerocopy ubufs only once

In the Linux kernel, the following vulnerability has been resolved: vhost/net: complete zerocopy ubufs only once vhost-net initializes one ubufinfo per outstanding zerocopy TX descriptor and hands it to the backend socket. The networking stack may then clone a zerocopy skb before all skb referenc...

EUVD-2026-59457

In the Linux kernel, the following vulnerability has been resolved: vhost/net: complete zerocopy ubufs only once vhost-net initializes one ubufinfo per outstanding zerocopy TX descriptor and hands it to the backend socket. The networking stack may then clone a zerocopy skb before all skb referenc...

CVE-2026-74310

The CVE affects the Linux kernel vhost/net zerocopy path. The bug arises when vhost_zerocopy_complete() treats every ubuf callback as a completed descriptor, dereferences ubuf->ctx, and updates state while a cloned skb still holds the same ubuf_info refcount. This can allow a backend reset to ...

CVE-2026-74310 vhost/net: complete zerocopy ubufs only once

In the Linux kernel, the following vulnerability has been resolved: vhost/net: complete zerocopy ubufs only once vhost-net initializes one ubufinfo per outstanding zerocopy TX descriptor and hands it to the backend socket. The networking stack may then clone a zerocopy skb before all skb referenc...

EUVD-2026-59437

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: Dont expose folded kernel pointers The flow classifier falls back to addrfold for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can...

EUVD-2026-59433

In the Linux kernel, the following vulnerability has been resolved: net: pfcp: allocate per-cpu tstats for PFCP netdevs PFCP uses devgettstats64 as its ndogetstats64 callback, but pfcplinksetup does not request NETDEVPCPUSTATTSTATS. The net core therefore leaves dev-tstats NULL for PFCP devices...

CVE-2026-74284 net/sched: sch_hfsc: Don't make class passive twice

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhfsc: Don't make class passive twice updatevf is called from two places for the same class during a single dequeue when the class's child qdisc e.g. codel/fqcodel drops its last packets while dequeuing: 1. The child...

EUVD-2026-59411

In the Linux kernel, the following vulnerability has been resolved: net: watchdog: fix refcount tracking races Blamed commit converted the untracked devhold/devput calls in the watchdog code to use the tracked devholdtrack/devputtrack which were later renamed/interfaced to netdevhold and netdevpu...

CVE-2026-74264 net: watchdog: fix refcount tracking races

In the Linux kernel, the following vulnerability has been resolved: net: watchdog: fix refcount tracking races Blamed commit converted the untracked devhold/devput calls in the watchdog code to use the tracked devholdtrack/devputtrack which were later renamed/interfaced to netdevhold and netdevpu...

CVE-2026-74264 net: watchdog: fix refcount tracking races

In the Linux kernel, the following vulnerability has been resolved: net: watchdog: fix refcount tracking races Blamed commit converted the untracked devhold/devput calls in the watchdog code to use the tracked devholdtrack/devputtrack which were later renamed/interfaced to netdevhold and netdevpu...

EUVD-2026-59329

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix nfconnlabels leak on two error paths tcfctfillparams calls nfconnlabelsget setting putlabels when TCACTLABELS is present, but two later error sites use a bare return instead of "goto err", skipping the err:...

CVE-2026-72430 net/sched: act_ct: fix nf_connlabels leak on two error paths

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix nfconnlabels leak on two error paths tcfctfillparams calls nfconnlabelsget setting putlabels when TCACTLABELS is present, but two later error sites use a bare return instead of "goto err", skipping the err:...

CVE-2026-72405 net: udp_tunnel: prevent double queueing in udp_tunnel_nic_device_sync

In the Linux kernel, the following vulnerability has been resolved: net: udptunnel: prevent double queueing in udptunnelnicdevicesync Yue Sun reported a use-after-free and debugobjects warning in udptunnelnicdevicesyncwork during concurrent device operations. The workqueue core clears the interna...

CVE-2026-72399 net: enetc: check the number of BDs needed for xdp_frame

In the Linux kernel, the following vulnerability has been resolved: net: enetc: check the number of BDs needed for xdpframe The size of xdpredirectarr array is ENETCMAXSKBFRAGS. However, the number of fragments contained in xdpframe may be greater than or equal to ENETCMAXSKBFRAGS, which will cau...

CVE-2026-72390 net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF

In the Linux kernel, the following vulnerability has been resolved: net/sched: schteql: Introduce slaveslock to avoid race condition and UAF The teql master-slaves singly linked list is not protected against multiple writes. It can be mod'ed concurently from teqlmasterxmit, teqldequeue, teqlinit...

CVE-2026-72390 net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF

In the Linux kernel, the following vulnerability has been resolved: net/sched: schteql: Introduce slaveslock to avoid race condition and UAF The teql master-slaves singly linked list is not protected against multiple writes. It can be mod'ed concurently from teqlmasterxmit, teqldequeue, teqlinit...

CVE-2026-72390

The CVE-2026-72390 issue is in the Linux kernel net/sched sch_teql implementation. The teql master->slaves singly linked list was not protected against concurrent writes, allowing a slab-use-after-free via teql_master_xmit() while another CPU could hold a stale pointer to the list. The fix add...

CVE-2026-72376 afs: Fix misplaced inc of net->cells_outstanding

In the Linux kernel, the following vulnerability has been resolved: afs: Fix misplaced inc of net-cellsoutstanding Fix net-cellsoutstanding being incremented before the check for failure of idralloccyclic, leaving the count incremented on error...

CVE-2026-72376

CVE-2026-72376 refers to a Linux kernel issue in the AFS subsystem where the counter net->cells_outstanding was incremented before the failure check of idr_alloc_cyclic(), leaving the count incremented when an error occurs. The fix corrects the order of operations so the increment happens only...

CVE-2026-72345 net/mlx5: LAG, Fix off-by-one in single-FDB error rollback

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: LAG, Fix off-by-one in single-FDB error rollback On failure at index i, the reverse cleanup loop in mlx5lagcreatesinglefdb starts from i, so the failed index itself is rolled back. That can operate on uninitialized stat...