CVE-2026-53323: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops DSA replaces the conduit (master) device's ethtool_ops with its own wrappers that aggregate stats from both the conduit and DSA switch ports. Taking the lock again inside the DSA wrappers causes a deadlock. Stumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y (which looks like some kind of testing device that auto-populates the ports of eth0). `ethtool -i` is enough to deadlock. This means we have basically zero coverage for DSA stuff with real ops locked devs. Remove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from the DSA conduit ethtool wrappers.

Засегнати продукти

• Linux Linux: 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 преди 74d64ae4254e99ef8c8215b057a76edac82c5f99; 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 преди abe91fd045874d21834482adcd7a9693e7377056; 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 преди 0f99e0c3e19badaf3fdced0d3feba623e59eed41
• Linux Linux: 6.15; преди 6.15; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-53323
• https://nvd.nist.gov/vuln/detail/CVE-2026-53323
• https://git.kernel.org/stable/c/74d64ae4254e99ef8c8215b057a76edac82c5f99
• https://git.kernel.org/stable/c/abe91fd045874d21834482adcd7a9693e7377056
• https://git.kernel.org/stable/c/0f99e0c3e19badaf3fdced0d3feba623e59eed41