CVE-2021-46909

low-risk
Published 2024-02-27

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (12)

Patch https://git.kernel.org/stable/c/1fc087fdb98d556b416c82ed6e3964a30885f47a
Patch https://git.kernel.org/stable/c/2643da6aa57920d9159a1a579fb04f89a2b0d29a
Patch https://git.kernel.org/stable/c/30e3b4f256b4e366a61658c294f6a21b8626dda7
Patch https://git.kernel.org/stable/c/532747fd5c7aaa17ee5cf79f3e947c31eb0e35cf
Patch https://git.kernel.org/stable/c/871b569a3e67f570df9f5ba195444dc7c621293b
Patch https://git.kernel.org/stable/c/c3efce8cc9807339633ee30e39882f4c8626ee1d
Patch https://git.kernel.org/stable/c/1fc087fdb98d556b416c82ed6e3964a30885f47a
Patch https://git.kernel.org/stable/c/2643da6aa57920d9159a1a579fb04f89a2b0d29a
Patch https://git.kernel.org/stable/c/30e3b4f256b4e366a61658c294f6a21b8626dda7
Patch https://git.kernel.org/stable/c/532747fd5c7aaa17ee5cf79f3e947c31eb0e35cf
Patch https://git.kernel.org/stable/c/871b569a3e67f570df9f5ba195444dc7c621293b
Patch https://git.kernel.org/stable/c/c3efce8cc9807339633ee30e39882f4c8626ee1d
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal