Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Mon, 20 Mar 2023 18:02:02 +0100 | Subject | Re: [PATCH] ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects |
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On Sun, Feb 26, 2023 at 7:19 AM Kang Chen <void0red@gmail.com> wrote: > > ACPI_ALLOCATE_ZEROED may fails, object_info might be null and will > cause null pointer dereference later. > > Signed-off-by: Kang Chen <void0red@gmail.com>
As a rule, ACPICA changes need to be submitted as pull requests to the upstream ACPICA project on GitHub in the first place.
When this happens, please resend the patch with a Link tag pointing to the corresponding upstream pull request.
> --- > drivers/acpi/acpica/dbnames.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c > index 3615e1a6e..b91155ea9 100644 > --- a/drivers/acpi/acpica/dbnames.c > +++ b/drivers/acpi/acpica/dbnames.c > @@ -652,6 +652,9 @@ acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg) > object_info = > ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_object_info)); > > + if (!object_info) > + return (AE_NO_MEMORY); > + > /* Walk the namespace from the root */ > > (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, > -- > 2.34.1 >
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