Re: [PATCH 1/3] clk: bcm: rpi: Prevent out-of-bounds access
From: Stephen Boyd <sboyd@kernel.org>
Date: 2022-08-23 22:52:17
Also in:
linux-clk, lkml
Quoting Stefan Wahren (2022-07-13 08:49:51)
The while loop in raspberrypi_discover_clocks() relies on the assumption
that the id of the last clock element is zero. Because this data comes
from the Videocore firmware and it doesn't guarantuee such a behavior
this could lead to out-of-bounds access. So fix this by providing
a sentinel element.
Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks")
Link: https://github.com/raspberrypi/firmware/issues/1688
Suggested-by: Phil Elwell <redacted>
Signed-off-by: Stefan Wahren <redacted>
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