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drm/vc4: hdmi: Fix off by ones in vc4_hdmi_read/write()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 10 Sep 2020 10:07:48 +0000 (13:07 +0300)
committerMaxime Ripard <maxime@cerno.tech>
Thu, 10 Sep 2020 10:15:52 +0000 (12:15 +0200)
commit130cdec4e12836cb2d5346216902c49800a07c33
tree582fa3ca225bc431c8b0368ca26660a3810fb5f8tree | snapshot
parent6a8a58acfe82a49e91a3c3e1c1c07865024b4ff4commit | diff
drm/vc4: hdmi: Fix off by ones in vc4_hdmi_read/write()

The variant->registers[] has ->num_registers elements so the >
comparison needs to be changes to >= to prevent an out of bounds
access.

Fixes: 311e305fdb4e ("drm/vc4: hdmi: Implement a register layout abstraction")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200910100748.GA79916@mwanda
drivers/gpu/drm/vc4/vc4_hdmi_regs.h diff | blob | history
Domain: System / Kernel;