CVE-2024-40926

2024-07-1213:15:15

Linux

web.nvd.nist.gov

linux kernel

vulnerability

hpd_work

AI Score

6.5

Confidence

Low

EPSS

Percentile

9.3%

JSON

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

drm/nouveau: don’t attempt to schedule hpd_work on headless cards

If the card doesn’t have display hardware, hpd_work and hpd_lock are
left uninitialized which causes BUG when attempting to schedule hpd_work
on runtime PM resume.

Fix it by adding headless flag to DRM and skip any hpd if it’s set.

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.7–6.9.6

linuxlinux_kernelRange6.10.0≥

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/gpu/drm/nouveau/dispnv04/disp.c",
      "drivers/gpu/drm/nouveau/dispnv50/disp.c",
      "drivers/gpu/drm/nouveau/nouveau_display.c",
      "drivers/gpu/drm/nouveau/nouveau_drv.h"
    ],
    "versions": [
      {
        "version": "ae1aadb1eb8d",
        "lessThan": "227349998e57",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae1aadb1eb8d",
        "lessThan": "b96a225377b6",
        "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/dispnv04/disp.c",
      "drivers/gpu/drm/nouveau/dispnv50/disp.c",
      "drivers/gpu/drm/nouveau/nouveau_display.c",
      "drivers/gpu/drm/nouveau/nouveau_drv.h"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.6",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]