CVE-2026-53231: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net: phy: don't try to setup PHY-driven SFP cages when using genphy We don't have support for PHY-driver SFP cages with the genphy code. On top of that, it was found by sashiko that running sfp_bus_add_upstream() for genphy deadlocks, as for genphy the PHY probing runs under RTNL, which isn't the case for non-genphy drivers. This problem was reproduced, and does lead to a deadlock on RTNL. Before the blamed commit, the phy_sfp_probe() call was made by individual PHY drivers, so there was no way to get to the SFP probing path when using genphy. Let's therefore only run phy_sfp_probe when not using genphy.

Засегнати продукти

• Linux Linux: bad869b5e41a08424ff130fd6bb41b854be70095 преди ef8d739eee6f85303cbecebc01eb72f063de74e0; bad869b5e41a08424ff130fd6bb41b854be70095 преди 5a0082ec20a05ef2378410323a5089a8f1786f4a
• Linux Linux: 7.0; преди 7.0; 7.0.13 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-2026-53231
• https://nvd.nist.gov/vuln/detail/CVE-2026-53231
• https://git.kernel.org/stable/c/ef8d739eee6f85303cbecebc01eb72f063de74e0
• https://git.kernel.org/stable/c/5a0082ec20a05ef2378410323a5089a8f1786f4a