CVE-2026-64228: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net: ethtool: phy: avoid NULL deref when PHY driver is unbound phydev->drv can become NULL while the phy_device is still attached to its net_device, namely after the PHY driver is unbound via sysfs: echo <mdio_id> > /sys/bus/mdio_bus/drivers/<phy_drv>/unbind phy_remove() clears phydev->drv but doesn't call phy_detach(), so the phy_device stays in the link topology xarray and ethnl_req_get_phydev() still hands it back. ETHTOOL_MSG_PHY_GET then oopses on: rep_data->drvname = kstrdup(phydev->drv->name, GFP_KERNEL); drvname is already treated as optional by phy_reply_size(), phy_fill_reply() and phy_cleanup_data(), so just skip the allocation when there is no driver bound.

Засегнати продукти

• Linux Linux: 9dd2ad5e92b962d1349a7541d167e8e214e49f95 преди 3586924625559e6f9876d726c80ff0a75f0d5849; 9dd2ad5e92b962d1349a7541d167e8e214e49f95 преди 17fe2381f967d353183f374a1c0181a6d194158c; 9dd2ad5e92b962d1349a7541d167e8e214e49f95 преди e3adf69f8eb121a9128c2b0029efd050d3649153
• Linux Linux: 6.16; преди 6.16; 6.18.34 до 6.18.*; 7.0.11 до 7.0.*; 7.1 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64228
• https://nvd.nist.gov/vuln/detail/CVE-2026-64228
• https://git.kernel.org/stable/c/3586924625559e6f9876d726c80ff0a75f0d5849
• https://git.kernel.org/stable/c/17fe2381f967d353183f374a1c0181a6d194158c
• https://git.kernel.org/stable/c/e3adf69f8eb121a9128c2b0029efd050d3649153