This is a note to let you know that I've just added the patch titled
ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-processor-check-for-null-return-of-devm_kzalloc.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a93f4f8709674e13efa56037afd685cb3d2d01ea
Author: Kang Chen <void0red@xxxxxxxxx>
Date: Sun Feb 26 13:54:27 2023 +0800
ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()
[ Upstream commit 4dea41775d951ff1f7b472a346a8ca3ae7e74455 ]
devm_kzalloc() may fail, clk_data->name might be NULL and will
cause a NULL pointer dereference later.
Signed-off-by: Kang Chen <void0red@xxxxxxxxx>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index 3bbe2276cac76..80f945cbec8a7 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -83,6 +83,8 @@ static int fch_misc_setup(struct apd_private_data *pdata)
if (!acpi_dev_get_property(adev, "clk-name", ACPI_TYPE_STRING, &obj)) {
clk_data->name = devm_kzalloc(&adev->dev, obj->string.length,
GFP_KERNEL);
+ if (!clk_data->name)
+ return -ENOMEM;
strcpy(clk_data->name, obj->string.pointer);
} else {
