CVE-2025-21894

Published: April 2, 2025Last modified: April 2, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC Actually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only ENETC PF can access PMa_SINGLE_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] enetc_port_mac_wr+0x30/0xec (P) [ 129.294504] enetc_start_xmit+0xda4/0xe74 [ 129.298525] enetc_xmit+0x70/0xec [ 129.301848] dev_hard_start_xmit+0x98/0x118

Status

References

• https://git.kernel.org/stable/c/1748531839298ab7be682155f6cd98ae04773e6a
• https://git.kernel.org/stable/c/3d9634211121700568d0e3635ebdd5df06d20440
• https://git.kernel.org/stable/c/8c393efd7420cc994864d059fcc6219bfd7cb840
• https://git.kernel.org/stable/c/a562d0c4a893eae3ea51d512c4d90ab858a6b7ec