CVE-2026-74543 net: udp_tunnel: fix memory leak in udp_tunnel_nic_unregister()

In the Linux kernel, the following vulnerability has been resolved: net: udptunnel: fix memory leak in udptunnelnicunregister syzbot reported a memory leak 1 in the UDP tunnel NIC offload code. When device registration fails e.g. in registernetdevice, netdev core unwinds by sending a single...

EUVD-2026-59736

In the Linux kernel, the following vulnerability has been resolved: net: udptunnel: fix memory leak in udptunnelnicunregister syzbot reported a memory leak 1 in the UDP tunnel NIC offload code. When device registration fails e.g. in registernetdevice, netdev core unwinds by sending a single...

CVE-2026-74543

CVE-2026-74543 concerns the Linux kernel UDP tunnel NIC offload code. The issue: when device registration fails, the code may leak a struct udp_tunnel_nic due to an early return if utn->work_pending is set, because no subsequent NETDEV_UNREGISTER rebroadcast occurs. The fix, as described in co...

CVE-2026-74543 net: udp_tunnel: fix memory leak in udp_tunnel_nic_unregister()

In the Linux kernel, the following vulnerability has been resolved: net: udptunnel: fix memory leak in udptunnelnicunregister syzbot reported a memory leak 1 in the UDP tunnel NIC offload code. When device registration fails e.g. in registernetdevice, netdev core unwinds by sending a single...

CVE-2026-72338

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72054 net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: net: ipvti: require CAPNETADMIN in the device netns for changelink vtichangelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other than t...

PT-2026-72599

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mxl862xx: fix use-after-free of DSA ports in crc err work Upon an MDIO CRC error mxl862xx crc err work fn walks the DSA ports and closes the CPU port conduits: dsa switch for each cpu portdp, priv-ds dev closedp-conduit...

CVE-2026-74562: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

CVE-2026-74543: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: udptunnel: fix memory leak in udptunnelnicunregister syzbot reported a memory leak 1 in the UDP tunnel NIC offload code. When device registration fails e.g. in registernetdevice, netdev core unwinds by sending a single...

PT-2026-72975

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock occurs in the recovery path of the qede NIC driver when VXLAN or GENEVE tunnel ports are configured. A transmit TX timeout triggers the qede recovery handler function, which...

PT-2026-72995

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the UDP tunnel NIC offload code. When device registration fails in register netdevice, the udp tunnel nic unregister function may return early if the utn-work...

PT-2026-73013

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A slab-use-after-free issue exists in the Linux kernel within the nh rt cache flush function, which is inlined into rtm new nexthop. The problem occurs when nh rt cache flush traverses t...

PT-2026-72314

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free race condition exists in the ISO Transport IsoTP protocol implementation. The isotp release function attempts to look up a bound network device using dev get by index an...

CVE-2026-68432

A flaw was found in the Linux kernel's VXLAN Virtual Extensible LAN implementation. A local attacker, with CAPNETADMIN network administration capability in one network namespace, could exploit an incorrect privilege check in the rtnl changelink path. This allows the attacker to modify the...

CVE-2026-68138

In the Linux kernel, the following vulnerability has been resolved: net/sched: serialize qdiscrtablist against concurrent get/put qdiscgetrtab and qdiscputrtab mutate the process-global singly linked list qdiscrtablist and a plain non-atomic 'int refcnt' with no lock. This was only safe because...

CVE-2026-63997

A flaw was found in the ethtool module of the Linux kernel. The moduleflashfwschedule function fails to properly undo the setting of the 'inprogress' flag and the taking of the netdev reference during module flash errors. This oversight can lead to a resource leak, preventing the device from bein...

CVE-2026-63997

In the Linux kernel, the following vulnerability has been resolved: ethtool: module: avoid leaking a netdev ref on module flash errors moduleflashfwschedule is missing undo for setting the "inprogress" flag and taking the netdev reference. Delay taking these, the device can't disappear while we a...

CVE-2026-63988 bridge: Fix sleep in atomic context in sysfs path

In the Linux kernel, the following vulnerability has been resolved: bridge: Fix sleep in atomic context in sysfs path Since the start of the git history, brportstore always acquired the bridge lock. Back then this decision made sense: The bridge lock protects the STP state of the bridge and its...

CVE-2026-53231: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: phy: don't try to setup PHY-driven SFP cages when using genphy We don't have support for PHY-driver SFP cages with the genphy code. On top of that, it was found by sashiko that running sfpbusaddupstream for genphy deadlocks,...

CVE-2026-46287

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix RTNL assertion warning when remove module For the copper NIC with external PHY, the driver called phylinkconnectphy during probe and phylinkdisconnectphy during remove. It caused an RTNL assertion warning in...