Zhenzhong Duan 06096cc6c5
spi: spidev: fix a potential use-after-free in spidev_release()
If an spi device is unbounded from the driver before the release
process, there will be an NULL pointer reference when it's
referenced in spi_slave_abort().

Fix it by checking it's already freed before reference.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@gmail.com>
Link: https://lore.kernel.org/r/20200618032125.4650-2-zhenzhong.duan@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-06-18 17:47:00 +01:00
..
2020-02-12 23:56:18 +00:00
2020-03-17 13:20:16 +00:00
2020-01-17 15:37:44 +00:00