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| author | Dmitry Osipenko <[email protected]> | 2017-06-14 23:18:35 +0000 |
|---|---|---|
| committer | Thierry Reding <[email protected]> | 2017-06-15 12:22:32 +0000 |
| commit | 571cbf70c117664d142b34fa2b3b915d8374a327 (patch) | |
| tree | 58c09c29d12a99fa7a9f6a5a185b6363e8495310 /drivers/gpu/host1x/debug.c | |
| parent | gpu: host1x: Do not leak BO's phys address to userspace (diff) | |
| download | kernel-571cbf70c117664d142b34fa2b3b915d8374a327.tar.gz kernel-571cbf70c117664d142b34fa2b3b915d8374a327.zip | |
gpu: host1x: Forbid relocation address shifting in the firewall
Incorrectly shifted relocation address will cause a lower memory
corruption and likely a hang on a write or a read of an arbitrary data
in case of IOMMU absence. As of now, there is no known use for the
address shifting and adding a proper shifts / sizes validation is a much
more work. Let's forbid shifts in the firewall till a proper validation
is implemented.
Signed-off-by: Dmitry Osipenko <[email protected]>
Reviewed-by: Erik Faye-Lund <[email protected]>
Reviewed-by: Mikko Perttunen <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Diffstat (limited to 'drivers/gpu/host1x/debug.c')
0 files changed, 0 insertions, 0 deletions