CVE-2026-68142

In the Linux kernel, the following vulnerability has been resolved: geneve: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns geneve-net. They differ once the device is created in or moved to a netns...

DEBIAN-CVE-2026-68126

In the Linux kernel, the following vulnerability has been resolved: mac802154: hold an interface reference across the scan worker mac802154scanworker captures the scanning sub-interface under RCU and then keeps dereferencing sdata-dev after rcureadunlock and outside the rtnl -- in the failure...

UBUNTU-CVE-2026-68124

In the Linux kernel, the following vulnerability has been resolved: mctp: serial: handle zero-length frames to prevent rx buffer overflow The MCTP serial receive state machine reads a frame length byte in mctpserialpushheader case 2 and validates it upper-bound-only: if c MCTPSERIALFRAMEMTU...

UBUNTU-CVE-2026-68141

In the Linux kernel, the following vulnerability has been resolved: net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the...

CVE-2026-68404

The CVE-2026-68404 entry describes a race in the Linux kernel’s cfg80211 wireless subsystem during socket owner autodisconnect. The root cause is a work item (disconnect_wk) queued after cancellation, which could lead to a system crash (DoS) if NETLINK_URELEASE observers reach the wdev list. The ...

CVE-2026-68404 wifi: cfg80211: use wiphy work for socket owner autodisconnect

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: use wiphy work for socket owner autodisconnect nl80211netlinknotify walks the cfg80211 wireless device list when a NETLINKGENERIC socket is released. If the socket owns a connection, the notifier queues the embedd...

CVE-2026-68397

The CVE-2026-68397 issue affects the Linux kernel net/iucv code: afiucv_hs_rcv() may pass a destination socket to handlers without holding a reference, allowing a concurrent close to free the socket before the handler dereferences it (e.g., sk->sk_data_ready()) because AF_IUCV sockets aren’t R...

EUVD-2026-55563

In the Linux kernel, the following vulnerability has been resolved: net/sched: acttunnelkey: Defer dstrelease to RCU callback Fix a race-condition use-after-free in tunnelkeyreleaseparams. The function releases the metadatadst of the old params synchronously via dstrelease while deferring the...

CVE-2026-68377

CVE-2026-68377 affects the Linux kernel net/sched component, specifically act_tunnel_key. The issue is a race leading to use-after-free during tunnel_key_release_params() where metadata_dst is released synchronously via dst_release() while the old params are freed with kfree_rcu(), allowing a con...

EUVD-2026-55455

In the Linux kernel, the following vulnerability has been resolved: firewire: net: Fix fragmented datagram reassembly fwnetfragnew keeps a sorted list of received fragments for a partial datagram. When a new fragment is adjacent to an existing fragment, the code checks whether the new fragment al...

CVE-2026-68354

CVE-2026-68354 affects the Linux kernel FireWire networking driver (fwnet_frag_new) and its fragmented datagram reassembly. The root cause is incorrect neighbor-edge handling when fragments are adjacent: list-edge checks incorrectly treat the head as a real neighbor and merge decisions use the ol...

CVE-2026-68354 firewire: net: Fix fragmented datagram reassembly

In the Linux kernel, the following vulnerability has been resolved: firewire: net: Fix fragmented datagram reassembly fwnetfragnew keeps a sorted list of received fragments for a partial datagram. When a new fragment is adjacent to an existing fragment, the code checks whether the new fragment al...

EUVD-2026-55439

In the Linux kernel, the following vulnerability has been resolved: net/packet: avoid fanout hook re-registration after unregister packetsetring temporarily detaches a socket from packet delivery while reconfiguring its ring. It records the previous running state, clears po-num, unregisters the...

CVE-2026-68337

The CVE affects the Linux kernel BPF redirect helpers (bpf_redirect* and skb_do_redirect) and the bpf_net_context flow. The issue arose when a BPF program ran via tc BPF paths and accessed current->bpf_net_context unconditionally, leading to NULL dereferences. Specifically, redirects via tc qd...

EUVD-2026-55438

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject redirect helpers without a bpfnetcontext The bpfredirect helpers and skbdoredirect obtain the per-task bpfredirectinfo via bpfnetctxgetri, which dereferences the current-bpfnetcontext unconditionally. That context is...

EUVD-2026-55422

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregisternetdev only calls ndostop when the device is up, so...

CVE-2026-68293 net/mlx5: Fix MCIA register buffer overflow on 32 dword reads

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads The MCIA register can return up to 32 dwords 128 bytes when the device advertises the mcia32dwords capability, but struct mlx5ifcmciaregbits only defines dword0..11,...

EUVD-2026-55391

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: unregister sysctl before tearing down listen socket rdstcpexitnet frees the per-netns RDS TCP listen socket via rdstcpkillsock before unregistering the per-netns sysctl table. Since rdstcpskbufhandler derives the netns...

CVE-2026-68288

The CVE-2026-68288 entry concerns the Linux kernel net: drop_monitor information leak in NET_DM_ATTR_PAYLOAD. The vulnerable code paths are net_dm_packet_report_fill() and net_dm_hw_packet_report_fill(), which open-code the NET_DM_ATTR_PAYLOAD attribute and copy payload data without initializing ...

EUVD-2026-55389

In the Linux kernel, the following vulnerability has been resolved: net: dropmonitor: fix info leak in NETDMATTRPAYLOAD netdmpacketreportfill and netdmhwpacketreportfill open code the NETDMATTRPAYLOAD attribute to avoid zeroing the packet payload before overwriting it with skbcopybits. skbput...