CVE-2026-53199

A flaw was found in the Linux kernel's Hyper-V network virtual service client hvnetvsc component. This vulnerability occurs in the netvsccopytosendbuf function, where incorrect memory mapping of page buffer entries can lead to a system fault. Specifically, on 32-bit x86 systems with high memory...

CVE-2026-53199

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2025-38683 hv_netvsc: Fix panic during namespace deletion with VF

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: Fix panic during namespace deletion with VF The existing code move the VF NIC to new namespace when NETDEVREGISTER is received on netvsc NIC. During deletion of the namespace, defaultdeviceexitbatch defaultdeviceexitnet...

kernel: hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove

A vulnerability was found in the hvnetvsc driver in the Linux kernel, where a race condition is present between the netvscprobe and netvscremove functions. This race condition could lead to system hangs during network device removal...

UBUNTU-CVE-2024-26820

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: Register VF in netvscprobe if NETDEVICEREGISTER missed If hvnetvsc driver is unloaded and reloaded, the NETDEVICEREGISTER handler cannot perform VF register successfully as the register call is received before netvscpro...

kernel: hv_netvsc: NULL pointer dereference in netvsc_get_ethtool_stats()

An issue was discovered in the Linux kernel through 5.16-rc6. netvscgetethtoolstats in drivers/net/hyperv/netvscdrv.c lacks check of the return value of kvmallocarray and will cause the null pointer dereference...