]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
drm/i915/gvt: Fix out-of-bounds buffer write into opregion->signature[]
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 4 Dec 2017 03:23:44 +0000 (11:23 +0800)
committerZhenyu Wang <zhenyuw@linux.intel.com>
Mon, 4 Dec 2017 03:23:44 +0000 (11:23 +0800)
commitea26c96d59b27e878fe61e8ef0fed840d2281a2f
tree5eb86e8429a2ee9b36165ed459b83236412fb8e3
parent7b30255698edc91f9235faf586d21625ca7bbbac
drm/i915/gvt: Fix out-of-bounds buffer write into opregion->signature[]

sparse spots

drivers/gpu/drm/i915/gvt/opregion.c:234 alloc_and_init_virt_opregion() error: memcpy() 'header->signature' too small (16 vs 17)

as gvt is indeed trying to memcpy a string longer than the signature[].

Fixes: b2d6ef70614e ("drm/i915/gvt: Let each vgpu has separate opregion memory")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: intel-gvt-dev@lists.freedesktop.org
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
drivers/gpu/drm/i915/gvt/opregion.c