CVE-2026-46287
kernel: net: txgbe: fix RTNL assertion warning when remove module
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · June 8, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's txgbe network driver. When removing a module for a copper Network Interface Card (NIC) with an external physical layer (PHY), the driver failed to acquire the necessary RTNL (Routing Netlink) lock before disconnecting the PHY. This oversight can lead to an RTNL assertion warning, potentially causing system instability or a denial of service (DoS) by crashing the kernel.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-414 · Missing Lock Check