CVE-2024-43875

2024-08-2101:15:11

Linux

web.nvd.nist.gov

linux kernel

pci endpoint

vulnerability

cve-2024-43875

fixed

error handling

vpci_scan_bus

AI Score

6.8

Confidence

Low

EPSS

Percentile

16.4%

JSON

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: Clean up error handling in vpci_scan_bus()

Smatch complains about inconsistent NULL checking in vpci_scan_bus():

drivers/pci/endpoint/functions/pci-epf-vntb.c:1024 vpci_scan_bus() error: we previously assumed 'vpci_bus' could be null (see line 1021)

Instead of printing an error message and then crashing we should return
an error code and clean up.

Also the NULL check is reversed so it prints an error for success
instead of failure.

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.0–5.15.165

linuxlinux_kernelRange5.16.0–6.1.103

linuxlinux_kernelRange6.2.0–6.6.44

linuxlinux_kernelRange6.7.0–6.10.3

linuxlinux_kernelRange6.11.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/pci/endpoint/functions/pci-epf-vntb.c"
    ],
    "versions": [
      {
        "version": "e2b6ef72b7ae",
        "lessThan": "24414c842a24",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e35f56bb0330",
        "lessThan": "7d368de78b60",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e35f56bb0330",
        "lessThan": "0e27e2e8697b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e35f56bb0330",
        "lessThan": "b9e8695246bc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e35f56bb0330",
        "lessThan": "8e0f5a96c534",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/pci/endpoint/functions/pci-epf-vntb.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.103",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.44",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.3",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]