Riskcovery

CVE-2024-46709

drm/vmwgfx: Fix prime with external buffers

State
Published
Severity
7.8 High
Published
Sep 13, 2024
Updated
Aug 5, 2026
Reserved
Sep 11, 2024

Read the record on cve.org

Description

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

drm/vmwgfx: Fix prime with external buffers

Make sure that for external buffers mapping goes through the dma_buf interface instead of trying to access pages directly.

External buffers might not provide direct access to readable/writable pages so to make sure the bo's created from external dma_bufs can be read dma_buf interface has to be used.

Fixes crashes in IGT's kms_prime with vgem. Regular desktop usage won't trigger this due to the fact that virtual machines will not have multiple GPUs but it enables better test coverage in IGT.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 65674218b43f2dd54587ab2b06560e17c30d8b41 to before 9a9716bbbf3dd6b6cbefba3abcc89af8b72631f4Affected
  • b32233accefff1338806f064fb9b62cf5bc0609f to before 5c12391ee1ab59cb2f3be3f1f5e6d0fc0c2dc854Affected
  • b32233accefff1338806f064fb9b62cf5bc0609f to before 50f1199250912568606b3778dc56646c10cb7b04Affected
  • 2cdb71c975a10b8774fcd199f16f9ea88948de50Affected
  • 6.6.29 to before 6.6.49Affected
  • 6.8.8 to before 6.9Affected
LinuxLinux
  • 6.9Affected
  • before 6.9Not affected
  • 6.6.49 through 6.6.*Not affected
  • 6.10.8 through 6.10.*Not affected
  • 6.11 and laterNot affected

References

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