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CVE-2026-98909

Linux: net: cpsw_new: unregister devlink on port registration failure

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in5a5ac0defdd42e566f1c871272370b6a3a8eef5cAlso 43d4af5c5331ea739a49cb1097d41e502ed91ec4, 8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0 and 8 moreCVE List
Published23 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 5a5ac0defdd42e566f1c871272370b6a3a8eef5cLinuxCVE List
  • 43d4af5c5331ea739a49cb1097d41e502ed91ec4LinuxCVE List
  • 8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0LinuxCVE List
  • 2bcf21ede6b097ca96cb1f7679761acca6510555LinuxCVE List
  • 0a44945b0d3422f5d81b49c97e293f3e21a8c585LinuxCVE List
  • 5.10.271LinuxCVE List
Show all 11 fixed versions

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

In the Linux kernel, the following vulnerability has been resolved:

net: cpsw_new: unregister devlink on port registration failure

cpsw_probe() registers devlink before registering the CPSW ports.

If cpsw_register_ports() fails, the error path only unregisters the notifiers and then releases the lower level resources. It does not undo the successful cpsw_register_devlink() call, leaving the devlink instance and its parameters registered after probe has failed.

Add a devlink cleanup label for the path where devlink registration has already succeeded, and use it when port registration fails.

Text from CVE List

Affected versions 20

  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b020390b4ef39adc40c800301042baf812280da1CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5a5ac0defdd42e566f1c871272370b6a3a8eef5cCVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 43d4af5c5331ea739a49cb1097d41e502ed91ec4CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2bcf21ede6b097ca96cb1f7679761acca6510555CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0a44945b0d3422f5d81b49c97e293f3e21a8c585CVE List
  • Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b64f763b607426ac97e44b114f0b8844ac3b86ddCVE List
  • Linuxaffected: all versions before 5.10.271CVE List
  • Linuxaffected: all versions before 5.15.222CVE List
  • Linuxaffected: all versions before 6.1.189CVE List
  • Linuxaffected: all versions before 6.6.158CVE List
  • Linuxaffected: all versions before 6.12.111CVE List
  • Linuxaffected: all versions before 6.18.53CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.111 through 6.12.*CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2CVE List

References 7