CVE-2024-43877 media: pci: ivtv: Add check for DMA map result

2024-08-2100:06:29

Linux

www.cve.org

cve-2024-43877

media

pci

ivtv

dma

linux kernel

vulnerability

out of bounds access

linux verification center

svace

EPSS

Percentile

16.4%

JSON

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

media: pci: ivtv: Add check for DMA map result

In case DMA fails, ‘dma->SG_length’ is 0. This value is later used to
access ‘dma->SGarray[dma->SG_length - 1]’, which will cause out of
bounds access.

Add check to return early on invalid value. Adjust warnings accordingly.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/media/pci/ivtv/ivtv-udma.c",
      "drivers/media/pci/ivtv/ivtv-yuv.c",
      "drivers/media/pci/ivtv/ivtvfb.c"
    ],
    "versions": [
      {
        "version": "1932dc2f4cf6",
        "lessThan": "24062aa74070",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1932dc2f4cf6",
        "lessThan": "3d8fd92939e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1932dc2f4cf6",
        "lessThan": "c766065e8272",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1932dc2f4cf6",
        "lessThan": "629913d6d795",
        "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/media/pci/ivtv/ivtv-udma.c",
      "drivers/media/pci/ivtv/ivtv-yuv.c",
      "drivers/media/pci/ivtv/ivtvfb.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "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"
      }
    ]
  }
]