CVE-2025-21894None▾ SunlitIn 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 reg…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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
Linux >= 41514737ecaa603a5127cdccdc5f17ef11b9b3dc < 3ad5fe77e477a8652c535b3a0343cf3d9ee10056Linux >= 41514737ecaa603a5127cdccdc5f17ef11b9b3dc < 1748531839298ab7be682155f6cd98ae04773e6aLinux >= 41514737ecaa603a5127cdccdc5f17ef11b9b3dc < 3d9634211121700568d0e3635ebdd5df06d20440Linux >= 41514737ecaa603a5127cdccdc5f17ef11b9b3dc < 8c393efd7420cc994864d059fcc6219bfd7cb840Linux >= 41514737ecaa603a5127cdccdc5f17ef11b9b3dc < a562d0c4a893eae3ea51d512c4d90ab858a6b7ecLinux 5.3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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