diff options
| author | Pei Xiao <xiaopei01@kylinos.cn> | 2024-11-28 16:38:17 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-12-02 00:29:46 +0000 |
| commit | 984836621aad98802d92c4a3047114cf518074c8 (patch) | |
| tree | 40233ba7b5d156f17c9164df1196bd8b72f4baa1 /lib/mpi/mpiutil.c | |
| parent | 40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff) | |
spi: mpc52xx: Add cancel_work_sync before module remove
If we remove the module which will call mpc52xx_spi_remove
it will free 'ms' through spi_unregister_controller.
while the work ms->work will be used. The sequence of operations
that may lead to a UAF bug.
Fix it by ensuring that the work is canceled before proceeding with
the cleanup in mpc52xx_spi_remove.
Fixes: ca632f556697 ("spi: reorganize drivers")
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Link: https://patch.msgid.link/1f16f8ae0e50ca9adb1dc849bf2ac65a40c9ceb9.1732783000.git.xiaopei01@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions