CVE-2024-38549 drm/mediatek: Add 0 size check to mtk_drm_gem_obj

2024-06-1913:35:22

Linux

www.cve.org

linux kernel

cve-2024-38549

drm/mediatek

vulnerability

fix

gem

buffer overflow

mt8188

einval

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

drm/mediatek: Add 0 size check to mtk_drm_gem_obj

Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object
of 0 bytes. Currently, no such check exists and the kernel will panic if
a userspace application attempts to allocate a 0x0 GBM buffer.

Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and
verifying that we now return EINVAL.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/mediatek/mtk_drm_gem.c"
    ],
    "versions": [
      {
        "version": "119f5173628a",
        "lessThan": "790788807954",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "119f5173628a",
        "lessThan": "be34a1b351ea",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "119f5173628a",
        "lessThan": "d17b75ee9c2e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "119f5173628a",
        "lessThan": "0e3b6f912372",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "119f5173628a",
        "lessThan": "13562c2d48c9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "119f5173628a",
        "lessThan": "af26ea99019c",
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        "versionType": "git"
      },
      {
        "version": "119f5173628a",
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      {
        "version": "119f5173628a",
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      },
      {
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        "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/gpu/drm/mediatek/mtk_drm_gem.c"
    ],
    "versions": [
      {
        "version": "4.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.7",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.316",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.278",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.219",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.161",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.93",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.33",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.12",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.3",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]