CVE-2021-46909

MEDIUM
Published Feb 27, 2024 Modified Nov 21, 2024 CWE-754

Description

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-754 CWE-754

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/1fc087fdb98d556b416c82ed6e3964a30885f47a https://git.kernel.org/stable/c/2643da6aa57920d9159a1a579fb04f89a2b0d29a https://git.kernel.org/stable/c/30e3b4f256b4e366a61658c294f6a21b8626dda7 https://git.kernel.org/stable/c/532747fd5c7aaa17ee5cf79f3e947c31eb0e35cf https://git.kernel.org/stable/c/871b569a3e67f570df9f5ba195444dc7c621293b https://git.kernel.org/stable/c/c3efce8cc9807339633ee30e39882f4c8626ee1d https://git.kernel.org/stable/c/1fc087fdb98d556b416c82ed6e3964a30885f47a https://git.kernel.org/stable/c/2643da6aa57920d9159a1a579fb04f89a2b0d29a https://git.kernel.org/stable/c/30e3b4f256b4e366a61658c294f6a21b8626dda7 https://git.kernel.org/stable/c/532747fd5c7aaa17ee5cf79f3e947c31eb0e35cf https://git.kernel.org/stable/c/871b569a3e67f570df9f5ba195444dc7c621293b https://git.kernel.org/stable/c/c3efce8cc9807339633ee30e39882f4c8626ee1d

Frequently Asked Questions

What is CVE-2021-46909? +
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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-46909? +
CVE-2021-46909 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2021-46909? +
CVE-2021-46909 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-46909? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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