diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2025-12-04 10:44:12 +0100 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:21:16 -0500 |
| commit | 1d7d869f074f98c34fe23f6a56e5f3acc1f95a2b (patch) | |
| tree | c1f981242542d374680d41d7043eba15060938cd /drivers/reset | |
| parent | 8ca992ffa3b65584d7aadd4bcd01c002b34cc204 (diff) | |
reset: gpio: suppress bind attributes in sysfs
[ Upstream commit 16de4c6a8fe9ff497ca1aba33ef0dbee09f11952 ]
This is a special device that's created dynamically and is supposed to
stay in memory forever. We also currently don't have a devlink between
it and the actual reset consumer. Suppress sysfs bind attributes so that
user-space can't unbind the device because - as of now - it will cause a
use-after-free splat from any user that puts the reset control handle.
Fixes: cee544a40e44 ("reset: gpio: Add GPIO-based reset controller")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/reset')
| -rw-r--r-- | drivers/reset/reset-gpio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/reset/reset-gpio.c b/drivers/reset/reset-gpio.c index e5512b3b596b..626c4c639c15 100644 --- a/drivers/reset/reset-gpio.c +++ b/drivers/reset/reset-gpio.c @@ -111,6 +111,7 @@ static struct auxiliary_driver reset_gpio_driver = { .id_table = reset_gpio_ids, .driver = { .name = "reset-gpio", + .suppress_bind_attrs = true, }, }; module_auxiliary_driver(reset_gpio_driver); |