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ARM: tegra: Use I/O memcpy to write to IRAM

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[ Upstream commit 398e67e0f5ae04b29bcc9cbf342e339fe9d3f6f1 ]

Kasan crashes the kernel trying to check boundaries when using the
normal memcpy.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://lore.kernel.org/r/20250522-mach-tegra-kasan-v1-1-419041b8addb@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Aaron Kling 2025-05-22 11:11:24 -05:00 • committed by Greg Kroah-Hartman
commit b28c1a14ac
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-tegra/reset.c
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@ -63,7 +63,7 @@ static void __init tegra_cpu_reset_handler_enable(void)
BUG_ON(is_enabled);
BUG_ON(tegra_cpu_reset_handler_size > TEGRA_IRAM_RESET_HANDLER_SIZE);
memcpy(iram_base, (void *)__tegra_cpu_reset_handler_start,
memcpy_toio(iram_base, (void *)__tegra_cpu_reset_handler_start,
tegra_cpu_reset_handler_size);
err = call_firmware_op(set_cpu_boot_addr, 0, reset_address);