| commit | 06096cc6c5a84ced929634b0d79376b94c65a4bd | [log] [tgz] |
|---|---|---|
| author | Zhenzhong Duan <zhenzhong.duan@gmail.com> | Thu Jun 18 11:21:25 2020 +0800 |
| committer | Mark Brown <broonie@kernel.org> | Thu Jun 18 17:47:00 2020 +0100 |
| tree | 20308a74b1a841161edebc9abcf1f566bfae01ca | |
| parent | abd42781c3d2155868821f1b947ae45bbc33330d [diff] |
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>