CVE-2021-46909 ARM: footbridge: fix PCI interrupt mapping

2024-02-2706:53:50

Linux

github.com

arm

footbridge

linux kernel

vulnerability

pci

interrupt mapping

fix

patch

6.8 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

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.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/arm/mach-footbridge/cats-pci.c",
      "arch/arm/mach-footbridge/ebsa285-pci.c",
      "arch/arm/mach-footbridge/netwinder-pci.c",
      "arch/arm/mach-footbridge/personal-pci.c"
    ],
    "versions": [
      {
        "version": "30fdfb929e82",
        "lessThan": "532747fd5c7a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "30fdfb929e82",
        "lessThan": "2643da6aa579",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "30fdfb929e82",
        "lessThan": "871b569a3e67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "30fdfb929e82",
        "lessThan": "1fc087fdb98d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "30fdfb929e82",
        "lessThan": "c3efce8cc980",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "30fdfb929e82",
        "lessThan": "30e3b4f256b4",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/arm/mach-footbridge/cats-pci.c",
      "arch/arm/mach-footbridge/ebsa285-pci.c",
      "arch/arm/mach-footbridge/netwinder-pci.c",
      "arch/arm/mach-footbridge/personal-pci.c"
    ],
    "versions": [
      {
        "version": "4.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.13",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.232",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.189",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.114",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.32",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.11.16",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]