CVE-2017-9605 (GCVE-0-2017-9605)

Vulnerability from cvelistv5 – Published: 2017-06-13 19:00 – Updated: 2024-08-05 17:11
VLAI?
Summary
The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
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