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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2022-08-05 16:12:18 +0900 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2022-08-08 17:06:23 -0700 |
| commit | 3f2893d3c142986aa935821460cb3adb77044722 (patch) | |
| tree | 20ee507add3fcdf66792108aa676b60cc102a8c1 /lib/mpi/mpi-mod.c | |
| parent | 9dfe1727b21927c6dd8d703e3a9618b505eb6224 (diff) | |
Bluetooth: don't try to cancel uninitialized works at mgmt_index_removed()
syzbot is reporting attempt to cancel uninitialized work at
mgmt_index_removed() [1], for calling cancel_delayed_work_sync() without
INIT_DELAYED_WORK() is not permitted.
INIT_DELAYED_WORK() is called from mgmt_init_hdev() via chan->hdev_init()
from hci_mgmt_cmd(), but cancel_delayed_work_sync() is unconditionally
called from mgmt_index_removed().
Call cancel_delayed_work_sync() only if HCI_MGMT flag was set, for
mgmt_init_hdev() sets HCI_MGMT flag when calling INIT_DELAYED_WORK().
Link: https://syzkaller.appspot.com/bug?extid=b8ddd338a8838e581b1c [1]
Reported-by: syzbot <syzbot+b8ddd338a8838e581b1c@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 0ef08313cefdd60d ("Bluetooth: Convert delayed discov_off to hci_sync")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'lib/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions