diff options
author | Rafael J. Wysocki <[email protected]> | 2022-04-22 17:13:48 +0200 |
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committer | Rafael J. Wysocki <[email protected]> | 2022-04-22 18:19:44 +0200 |
commit | 10fa1b2cdc899ab471000968af56215bf3c90d8e (patch) | |
tree | 24b79e53caad2d44d8f7bfdf907ec1f0d7f00592 /drivers/acpi/cppc_acpi.c | |
parent | 62d528712c1db609fd5afc319378ca053ac9247e (diff) |
ACPI: bus: Avoid non-ACPI device objects in walks over children
When walking the children of an ACPI device, take extra care to avoid
using to_acpi_device() on the ones that are not ACPI devices, because
that may lead to out-of-bounds access and memory corruption.
While at it, make the function passed to acpi_dev_for_each_child()
take a struct acpi_device pointer argument (instead of a struct device
one), so it is more straightforward to use.
Fixes: b7dd6298db81 ("ACPI: PM: Introduce acpi_dev_power_up_children_with_adr()")
Reported-by: kernel test robot <[email protected]>
BugLink: https://lore.kernel.org/lkml/20220420064725.GB16310@xsang-OptiPlex-9020/
Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
0 files changed, 0 insertions, 0 deletions