From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: void0red <30990023+void0red@users.noreply.github.com>,
Bob Moore <robert.moore@intel.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Sasha Levin <sashal@kernel.org>,
linux-acpi@vger.kernel.org,
acpica-devel@lists.linuxfoundation.org
Subject: [PATCH AUTOSEL 4.19 8/9] ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects
Date: Sun, 30 Apr 2023 23:06:30 -0400 [thread overview]
Message-ID: <20230501030633.3255202-8-sashal@kernel.org> (raw)
In-Reply-To: <20230501030633.3255202-1-sashal@kernel.org>
From: void0red <30990023+void0red@users.noreply.github.com>
[ Upstream commit ae5a0eccc85fc960834dd66e3befc2728284b86c ]
ACPICA commit 0d5f467d6a0ba852ea3aad68663cbcbd43300fd4
ACPI_ALLOCATE_ZEROED may fails, object_info might be null and will cause
null pointer dereference later.
Link: https://github.com/acpica/acpica/commit/0d5f467d
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 992bd7b92540d..49afba8c916a7 100644
--- a/drivers/acpi/acpica/dbnames.c
+++ b/drivers/acpi/acpica/dbnames.c
@@ -571,6 +571,9 @@ 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,
--
2.39.2
next prev parent reply other threads:[~2023-05-01 3:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 3:06 [PATCH AUTOSEL 4.19 1/9] drm/amd/display: Use DC_LOG_DC in the trasform pixel function Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 2/9] regmap: cache: Return error in cache sync operations for REGCACHE_NONE Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 3/9] memstick: r592: Fix UAF bug in r592_remove due to race condition Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 4/9] firmware: arm_sdei: Fix sleep from invalid context BUG Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 5/9] ACPI: EC: Fix oops when removing custom query handlers Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 6/9] drm/tegra: Avoid potential 32-bit integer overflow Sasha Levin
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 7/9] ACPICA: Avoid undefined behavior: applying zero offset to null pointer Sasha Levin
2023-05-01 3:06 ` Sasha Levin [this message]
2023-05-01 3:06 ` [PATCH AUTOSEL 4.19 9/9] media: cros-ec-cec: Don't exit early in .remove() callback Sasha Levin
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