From: Karsten Graul kgraul@linux.ibm.com
[ Upstream commit ece0d7bd74615773268475b6b64d6f1ebbd4b4c6 ]
During IB device removal, cancel the event worker before the device structure is freed.
Fixes: a4cf0443c414 ("smc: introduce SMC as an IB-client") Reported-by: syzbot+b297c6825752e7a07272@syzkaller.appspotmail.com Signed-off-by: Karsten Graul kgraul@linux.ibm.com Reviewed-by: Ursula Braun ubraun@linux.ibm.com Reviewed-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/smc/smc_ib.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -580,6 +580,7 @@ static void smc_ib_remove_dev(struct ib_ smc_smcr_terminate_all(smcibdev); smc_ib_cleanup_per_ibdev(smcibdev); ib_unregister_event_handler(&smcibdev->event_handler); + cancel_work_sync(&smcibdev->port_event_work); kfree(smcibdev); }