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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2018-10-08 14:14:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-25 11:53:42 +0300 |
| commit | 1012e97fb04ef5fc6728ddc304c1387f6a704547 (patch) | |
| tree | cea5968ad2b6343180672482f9c16426f251b758 /drivers/dma/acpi-dma.c | |
| parent | 8077c98ce4c154d2f4dfcabb775daab4f8a3f421 (diff) | |
| download | linux-1012e97fb04ef5fc6728ddc304c1387f6a704547.tar.xz | |
reset: Fix potential use-after-free in __of_reset_control_get()
[ Upstream commit b790c8ea5593d6dc3580adfad8e117eeb56af874 ]
Calling of_node_put() decreases the reference count of a device tree
object, and may free some data.
However, the of_phandle_args structure embedding it is passed to
reset_controller_dev.of_xlate() after that, so it may still be accessed.
Move the call to of_node_put() down to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[p.zabel@pengutronix.de: moved of_node_put after mutex_unlock]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/dma/acpi-dma.c')
0 files changed, 0 insertions, 0 deletions