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LinuxCVE-2024-46712

HistorySep 13, 2024 - 7:15 a.m.

CVE-2024-46712

2024-09-1307:15:06

Linux

web.nvd.nist.gov

linux kernel

cve-2024-46712

vulnerability

drm/vmwgfx

coherent dumb buffers

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.6

Confidence

Low

EPSS

Percentile

9.6%

JSON

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

drm/vmwgfx: Disable coherent dumb buffers without 3d

Coherent surfaces make only sense if the host renders to them using
accelerated apis. Without 3d the entire content of dumb buffers stays
in the guest making all of the extra work they’re doing to synchronize
between guest and host useless.

Configurations without 3d also tend to run with very low graphics
memory limits. The pinned console fb, mob cursors and graphical login
manager tend to run out of 16MB graphics memory that those guests use.

Fix it by making sure the coherent dumb buffers are only used on
configs with 3d enabled.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange6.10.4–6.10.8

linuxlinux_kernelMatch6.11rc2

linuxlinux_kernelMatch6.11rc3

linuxlinux_kernelMatch6.11rc4

linuxlinux_kernelMatch6.11rc5

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc2::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc3::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc4::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc5::::::

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/vmwgfx/vmwgfx_surface.c"
    ],
    "versions": [
      {
        "version": "af6441e6f3d4",
        "lessThan": "c45558414b8f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d6667f0ddf46",
        "lessThan": "e9fd436bb8fb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/vmwgfx/vmwgfx_surface.c"
    ],
    "versions": [
      {
        "version": "6.10.4",
        "lessThan": "6.10.8",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]

References

git.kernel.org/stable/c/c45558414b8f2e0b9dc34eb8f9d4e8359b887681

git.kernel.org/stable/c/e9fd436bb8fb9b9d31fdf07bbcdba6d30290c5e4

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.6

Confidence

Low

EPSS

Percentile

9.6%

JSON

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