CVE-2024-27008 drm: nv04: Fix out of bounds access

2024-05-0105:29:13

Linux

www.cve.org

linux kernel

nv04

out of bounds access

cve-2024-27008

vulnerability

drm

fix

linux verification center

svace

enum nouveau_or

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

drm: nv04: Fix out of bounds access

When Output Resource (dcb->or) value is assigned in
fabricate_dcb_output(), there may be out of bounds access to
dac_users array in case dcb->or is zero because ffs(dcb->or) is
used as index there.
The ‘or’ argument of fabricate_dcb_output() must be interpreted as a
number of bit to set, not value.

Utilize macros from ‘enum nouveau_or’ in calls instead of hardcoding.

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/gpu/drm/nouveau/nouveau_bios.c"
    ],
    "versions": [
      {
        "version": "2e5702aff395",
        "lessThan": "c2b97f26f081",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "5050ae879a82",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "097c7918fcfa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "df0991da7db8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "5fd4b090304e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "6690cc2732e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "26212da39ee1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2e5702aff395",
        "lessThan": "cf92bb778eda",
        "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/nouveau/nouveau_bios.c"
    ],
    "versions": [
      {
        "version": "2.6.38",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.38",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.313",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.275",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.216",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.157",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.88",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.29",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.8",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]