virt_wifi0 speed is unknown, defaulting to 1000 infiniband syz0: set down infiniband syz0: added virt_wifi0 infiniband syz0: Couldn't open port 1 BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 24453 Comm: syz-executor.0 Not tainted 5.8.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:3063 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3162 [inline] validate_chain kernel/locking/lockdep.c:3183 [inline] __lock_acquire.cold+0x11/0x3f8 kernel/locking/lockdep.c:4380 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 write_seqcount_begin_nested include/linux/seqlock.h:408 [inline] write_seqcount_begin include/linux/seqlock.h:413 [inline] psi_group_change+0xd3/0x710 kernel/sched/psi.c:691 psi_task_change+0x142/0x220 kernel/sched/psi.c:791 psi_enqueue kernel/sched/stats.h:82 [inline] enqueue_task kernel/sched/core.c:1291 [inline] activate_task kernel/sched/core.c:1317 [inline] ttwu_do_activate+0x27d/0x4b0 kernel/sched/core.c:2247 ttwu_queue kernel/sched/core.c:2412 [inline] try_to_wake_up+0x5f4/0x1360 kernel/sched/core.c:2663 wake_up_worker kernel/workqueue.c:837 [inline] insert_work+0x298/0x370 kernel/workqueue.c:1340 __queue_work+0x5fa/0xff0 kernel/workqueue.c:1491 queue_work_on+0x18b/0x200 kernel/workqueue.c:1518 queue_work include/linux/workqueue.h:507 [inline] schedule_work include/linux/workqueue.h:568 [inline] __vfree_deferred mm/vmalloc.c:2324 [inline] vfree_atomic+0xac/0xe0 mm/vmalloc.c:2342 free_thread_stack+0x2b4/0x4a0 kernel/fork.c:295 release_task_stack kernel/fork.c:442 [inline] put_task_stack+0xcc/0x230 kernel/fork.c:453 finish_task_switch+0x52a/0x750 kernel/sched/core.c:3324 context_switch kernel/sched/core.c:3456 [inline] __schedule+0x8e9/0x1eb0 kernel/sched/core.c:4178 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4436 idtentry_exit_cond_resched arch/x86/entry/common.c:663 [inline] idtentry_exit_cond_rcu+0xc0/0xf0 arch/x86/entry/common.c:710 asm_sysvec_reschedule_ipi+0x12/0x20 arch/x86/include/asm/idtentry.h:592 RIP: 0010:preempt_count_add+0x22/0x140 kernel/sched/core.c:3865 Code: 00 e9 8a fe ff ff 66 90 48 c7 c0 60 21 92 8c 55 48 ba 00 00 00 00 00 fc ff df 48 89 c1 53 83 e0 07 89 fb 48 c1 e9 03 83 c0 03 <0f> b6 14 11 38 d0 7c 08 84 d2 0f 85 e1 00 00 00 8b 15 a8 a9 42 0b RSP: 0018:ffffc90029f46670 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000001 RCX: 1ffffffff192442c RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff8b96f524 R09: 0000000000000001 R10: 000000000007201e R11: 0000000000000001 R12: ffffc90029f467a8 R13: 0000000000000000 R14: ffff8881dff94080 R15: ffffc90029f46760 unwind_next_frame+0x11f/0x1f90 arch/x86/kernel/unwind_orc.c:434 arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123 save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494 kmem_cache_alloc_trace+0x14f/0x2d0 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] uapi_add_elm drivers/infiniband/core/uverbs_uapi.c:24 [inline] uapi_add_elm drivers/infiniband/core/uverbs_uapi.c:16 [inline] uapi_merge_method drivers/infiniband/core/uverbs_uapi.c:158 [inline] uapi_merge_obj_tree drivers/infiniband/core/uverbs_uapi.c:217 [inline] uapi_merge_def+0xd7a/0x15f0 drivers/infiniband/core/uverbs_uapi.c:300 uapi_merge_def+0x24b/0x15f0 drivers/infiniband/core/uverbs_uapi.c:289 uverbs_alloc_api+0x1be/0x16b0 drivers/infiniband/core/uverbs_uapi.c:656 ib_uverbs_create_uapi drivers/infiniband/core/uverbs_main.c:1089 [inline] ib_uverbs_add_one+0x446/0x7c0 drivers/infiniband/core/uverbs_main.c:1144 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:681 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1330 ib_register_device drivers/infiniband/core/device.c:1397 [inline] ib_register_device+0xa03/0xd90 drivers/infiniband/core/device.c:1357 rxe_register_device+0x4e9/0x606 drivers/infiniband/sw/rxe/rxe_verbs.c:1232 rxe_add+0x13b9/0x17dc drivers/infiniband/sw/rxe/rxe.c:305 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:539 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:321 [inline] rxe_newlink+0x65/0x80 drivers/infiniband/sw/rxe/rxe.c:308 nldev_newlink+0x314/0x550 drivers/infiniband/core/nldev.c:1541 rdma_nl_rcv_msg+0x34a/0x5b0 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x31a/0x470 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2362 ___sys_sendmsg+0xf3/0x170 net/socket.c:2416 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2449 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cba9 Code: Bad RIP value. RSP: 002b:00007fc86991ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000502ec0 RCX: 000000000045cba9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000006 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a36 R14: 00000000004d7448 R15: 00007fc86991f6d4 RDS/IB: syz0: added smc: adding ib device syz0 with port count 1 smc: ib device syz0 port 1 has pnetid virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000 virt_wifi0 speed is unknown, defaulting to 1000