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Commit 77ffc72b authored by Nikita Kiryushin's avatar Nikita Kiryushin Committed by Greg Kroah-Hartman
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ACPICA: debugger: check status of acpi_evaluate_object() in acpi_db_walk_for_fields()

[ Upstream commit 40e27108 ]

ACPICA commit 9061cd9aa131205657c811a52a9f8325a040c6c9

Errors in acpi_evaluate_object() can lead to incorrect state of buffer.

This can lead to access to data in previously ACPI_FREEd buffer and
secondary ACPI_FREE to the same buffer later.

Handle errors in acpi_evaluate_object the same way it is done earlier
with acpi_ns_handle_to_pathname.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Link: https://github.com/acpica/acpica/commit/9061cd9a
Fixes: 5fd03328

 ("ACPICA: debugger: add command to dump all fields of particular subtype")
Signed-off-by: default avatarNikita Kiryushin <kiryushin@ancud.ru>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 7fb8b3de
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