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| author | Michael S. Tsirkin <[email protected]> | 2018-05-11 21:33:10 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2018-06-12 01:59:29 +0000 |
| commit | 670ae9caaca467ea1bfd325cb2a5c98ba87f94ad (patch) | |
| tree | fa217f1338634e7f9d0955193d66445cd78740a6 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | virtio_ring: switch to dma_XX barriers for rpmsg (diff) | |
| download | kernel-670ae9caaca467ea1bfd325cb2a5c98ba87f94ad.tar.gz kernel-670ae9caaca467ea1bfd325cb2a5c98ba87f94ad.zip | |
vhost: fix info leak due to uninitialized memory
struct vhost_msg within struct vhost_msg_node is copied to userspace.
Unfortunately it turns out on 64 bit systems vhost_msg has padding after
type which gcc doesn't initialize, leaking 4 uninitialized bytes to
userspace.
This padding also unfortunately means 32 bit users of this interface are
broken on a 64 bit kernel which will need to be fixed separately.
Fixes: CVE-2018-1118
Cc: [email protected]
Reported-by: Kevin Easton <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reported-by: [email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions