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CVE-2025-21894

net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.6.83, 6.12.18, 6.13.6
None on Exploit-DB, Metasploit or GitHub

Summary

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

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    Version range not reported

  • Linux Linux

    5.3

  • KernelLinux

    From 5.3.0 · fixed in 6.6.83; From 6.7.0 · fixed in 6.12.18; From 6.13.0 · fixed in 6.13.6

References 5

git.kernel.org