{"id":"CVE-2026-98620","title":"net: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure\n\nIf register_netdev() fails for one of the MTK_MAX_DEVS devices in\nmtk_probe(), the error pa…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 245bea0c7ab278150c70366bdeb69b901327133c","Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0","Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 7254b702e556158e34b4d7c168b5d8e7da5978af","Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 0fdb944d4df02223c67d5e65c4c134ecb57a5668","Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 310d1ac61a4d5a2ca8356a3a48d263acf54503ce","Linux 4.9"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:19:40.320Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98620","references":[{"url":"https://git.kernel.org/stable/c/245bea0c7ab278150c70366bdeb69b901327133c"},{"url":"https://git.kernel.org/stable/c/ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0"},{"url":"https://git.kernel.org/stable/c/7254b702e556158e34b4d7c168b5d8e7da5978af"},{"url":"https://git.kernel.org/stable/c/0fdb944d4df02223c67d5e65c4c134ecb57a5668"},{"url":"https://git.kernel.org/stable/c/310d1ac61a4d5a2ca8356a3a48d263acf54503ce"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.237Z","slug":"CVE-2026-98620","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure\n\nIf register_netdev() fails for one of the MTK_MAX_DEVS devices in\nmtk_probe(), the error path jumps to err_deinit_ppe, skipping\nmtk_unreg_dev(). The previously registered net_devices are then freed by\nmtk_free_dev() while still in NETREG_REGISTERED state, hitting the\nBUG_ON(dev->reg_state != NETREG_UNREGISTERED).\n\nRoute the register_netdev() failure to err_unreg_netdev so the net_devices\nregistered so far are properly unregistered before being freed.\n\n## Affected\n\n- `Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 245bea0c7ab278150c70366bdeb69b901327133c`\n- `Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0`\n- `Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 7254b702e556158e34b4d7c168b5d8e7da5978af`\n- `Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 0fdb944d4df02223c67d5e65c4c134ecb57a5668`\n- `Linux >= 8a8a9e89f801ce5d3d1d57ac48db678caf072147 < 310d1ac61a4d5a2ca8356a3a48d263acf54503ce`\n- `Linux 4.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}