This is a note to let you know that I've just added the patch titled
ACPICA: Fix memory leak if acpi_ps_get_next_namepath() fails
to the 6.6-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:
acpica-fix-memory-leak-if-acpi_ps_get_next_namepath-.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5c618ad33f20add30dca60ab08eb368090cec0d4
Author: Armin Wolf <W_Armin@xxxxxx>
Date: Wed Apr 3 20:50:11 2024 +0200
ACPICA: Fix memory leak if acpi_ps_get_next_namepath() fails
[ 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@xxxxxxxxx/T/
Link: https://github.com/acpica/acpica/commit/2802af72
Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index 422c074ed2897..7debfd5ce0d86 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) {
