This is a note to let you know that I've just added the patch titled
ACPICA: events/evxfregn: don't release the ContextMutex that was never acquired
to the 6.12-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-events-evxfregn-don-t-release-the-contextmute.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ae7b7116ae798b9a81b2fb0cf38551d84b9ebb37
Author: Daniil Tatianin <d-tatianin@xxxxxxxxxxxxxx>
Date: Fri Nov 22 11:29:54 2024 +0300
ACPICA: events/evxfregn: don't release the ContextMutex that was never acquired
[ Upstream commit c53d96a4481f42a1635b96d2c1acbb0a126bfd54 ]
This bug was first introduced in c27f3d011b08, where the author of the
patch probably meant to do DeleteMutex instead of ReleaseMutex. The
mutex leak was noticed later on and fixed in e4dfe108371, but the bogus
MutexRelease line was never removed, so do it now.
Link: https://github.com/acpica/acpica/pull/982
Fixes: c27f3d011b08 ("ACPICA: Fix race in generic_serial_bus (I2C) and GPIO op_region parameter handling")
Signed-off-by: Daniil Tatianin <d-tatianin@xxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20241122082954.658356-1-d-tatianin@xxxxxxxxxxxxxx
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 95f78383bbdb..bff2d099f469 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -232,8 +232,6 @@ acpi_remove_address_space_handler(acpi_handle device,
/* Now we can delete the handler object */
- acpi_os_release_mutex(handler_obj->address_space.
- context_mutex);
acpi_ut_remove_reference(handler_obj);
goto unlock_and_exit;
}
