CVE-2021-46909: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ARM: footbridge: fix PCI interrupt mapping Since commit 30fdfb929e82 ("PCI: Add a call to pci_assign_irq() in pci_device_probe()"), the PCI code will call the IRQ mapping function whenever a PCI driver is probed. If these are marked as __init, this causes an oops if a PCI driver is loaded or bound after the kernel has initialised.

Affected products

• Linux Linux Kernel: from 4.13.0, before 4.14.232 (fixed in 4.14.232); from 4.15.0, before 4.19.189 (fixed in 4.19.189); from 4.20.0, before 5.4.114 (fixed in 5.4.114); from 5.5.0, before 5.10.32 (fixed in 5.10.32); from 5.11.0, before 5.11.16 (fixed in 5.11.16)

Published 2024-02-27. Last modified 2026-06-17.