In the Linux kernel, the following vulnerability has been resolved:
net: enetc: VFs do not support HWTSTAMPTXONESTEP_SYNC
Actually ENETC VFs do not support HWTSTAMPTXONESTEPSYNC because only ENETC PF can access PMaSINGLE_STEP registers. And there will be a crash if VFs are used to test one-step timestamp, the crash log as follows.
[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0 [ 129.287769] Call trace: [ 129.290219] enetcportmacwr+0x30/0xec (P) [ 129.294504] enetcstartxmit+0xda4/0xe74 [ 129.298525] enetcxmit+0x70/0xec [ 129.301848] devhardstart_xmit+0x98/0x118