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CVE-2026-98594

Linux: tg3: clean up PHYLIB resources on probe 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)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0844402326d4e48a28688f93ec6442e93bb442faAlso 6515c41503eef849abd2c7364f34e4bb25110f90CVE List
Published18 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 0844402326d4e48a28688f93ec6442e93bb442faLinuxCVE List
  • 6515c41503eef849abd2c7364f34e4bb25110f90LinuxCVE List

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:

tg3: clean up PHYLIB resources on probe failure

tg3_get_invariants() can register an MDIO bus and connect a PHY for USE_PHYLIB devices. If tg3_init_one() later fails, its common error path releases the mappings and netdev without undoing those PHYLIB resources.

Disconnect the PHY and unregister the MDIO bus before the remaining teardown. Guard PHY cleanup with USE_PHYLIB to match tg3_phy_init(), and call tg3_mdio_fini() unconditionally to match tg3_mdio_init(). The existing IS_CONNECTED and MDIOBUS_INITED flags make both helpers safe when initialization only completed partially.

This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Text from CVE List

Affected versions 18

  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before ce86d6929d03e6b0abcb781dfa50f9f0816bff78CVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before a449eedb3b1eb5b8b1f5ed116a1bfe85eaaf81dfCVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before 0844402326d4e48a28688f93ec6442e93bb442faCVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before e766321288b507afb70d2bfef6ba443213329f79CVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before d2abb0013b933d59ee441185df0eca9e8c0b33ebCVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before 6515c41503eef849abd2c7364f34e4bb25110f90CVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before b6c0c757c65893ad7bb17e8bcf33cdd8257d7b3dCVE List
  • Linuxaffected: 158d7abdae85e9ac43d99780c372d79c119f7626 before a92e1a412c53dc0d9ad639e7abf8b3fc70a5b6adCVE List
  • Linuxaffected: 2.6.27CVE List
  • Linuxunaffected: all versions before 2.6.27CVE 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: 6.12.112 through 6.12.*CVE List
  • Linuxunaffected: 6.18.55 through 6.18.*CVE List
  • Linuxunaffected: 7.2.9 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8