GHSA-GFJ4-2PQ5-Q7VJ
Vulnerability from github – Published: 2026-10-18 18:31 – Updated: 2026-10-18 18:31In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure
If register_netdev() fails for one of the MTK_MAX_DEVS devices in mtk_probe(), the error path jumps to err_deinit_ppe, skipping mtk_unreg_dev(). The previously registered net_devices are then freed by mtk_free_dev() while still in NETREG_REGISTERED state, hitting the BUG_ON(dev->reg_state != NETREG_UNREGISTERED).
Route the register_netdev() failure to err_unreg_netdev so the net_devices registered so far are properly unregistered before being freed.
{
"affected": [],
"aliases": [
"CVE-2026-98620"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:14Z",
"severity": null
},
"details": "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 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-\u003ereg_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.",
"id": "GHSA-gfj4-2pq5-q7vj",
"modified": "2026-10-18T18:31:56Z",
"published": "2026-10-18T18:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98620"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0fdb944d4df02223c67d5e65c4c134ecb57a5668"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/245bea0c7ab278150c70366bdeb69b901327133c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/310d1ac61a4d5a2ca8356a3a48d263acf54503ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7254b702e556158e34b4d7c168b5d8e7da5978af"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0"
}
],
"schema_version": "1.4.0",
"severity": []
}
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