From: Armin Wolf W_Armin@gmx.de
stable inclusion from stable-v4.19.323 commit b017675cfbd126954d3b45afbdd6ee345a0ce368 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBBN6V
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
--------------------------------
[ Upstream commit 5accb265f7a1b23e52b0ec42313d1e12895552f4 ]
ACPICA commit 2802af722bbde7bf1a7ac68df68e179e2555d361
If acpi_ps_get_next_namepath() fails, the previously allocated union acpi_parse_object needs to be freed before returning the status code.
The issue was first being reported on the Linux ACPI mailing list:
Link: https://lore.kernel.org/linux-acpi/56f94776-484f-48c0-8855-dba8e6a7793b@yand... Link: https://github.com/acpica/acpica/commit/2802af72 Signed-off-by: Armin Wolf W_Armin@gmx.de Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Qi Xi xiqi2@huawei.com --- drivers/acpi/acpica/psargs.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c index 176d28d60125..576ac74a4793 100644 --- a/drivers/acpi/acpica/psargs.c +++ b/drivers/acpi/acpica/psargs.c @@ -820,6 +820,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, acpi_ps_get_next_namepath(walk_state, parser_state, arg, ACPI_NOT_METHOD_CALL); + if (ACPI_FAILURE(status)) { + acpi_ps_free_op(arg); + return_ACPI_STATUS(status); + } } else { /* Single complex argument, nothing returned */
@@ -854,6 +858,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, acpi_ps_get_next_namepath(walk_state, parser_state, arg, ACPI_POSSIBLE_METHOD_CALL); + if (ACPI_FAILURE(status)) { + acpi_ps_free_op(arg); + return_ACPI_STATUS(status); + }
if (arg->common.aml_opcode == AML_INT_METHODCALL_OP) {