Hello, syzbot found the following issue on: HEAD commit: 982818426a0f Merge tag 'arm-fixes-6.3-1' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1194800f480000 kernel config: https://syzkaller.appspot.com/x/.config?x=90a4de3f96747e3f dashboard link: https://syzkaller.appspot.com/bug?extid=cfcc1a3c85be15a40cba compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/225d8c8e9264/disk-98281842.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/87a9e2a89842/vmlinux-98281842.xz kernel image: https://storage.googleapis.com/syzbot-assets/39bdeb741f2e/bzImage-98281842.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cfcc1a3c85be15a40cba@xxxxxxxxxxxxxxxxxxxxxxxxx Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB 14586 total pagecache pages 0 pages in swap cache Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 392145 pages reserved 0 pages cma reserved INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 PID: 5486 Comm: syz-executor.2 Not tainted 6.2.0-syzkaller-12765-g982818426a0f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 assign_lock_key kernel/locking/lockdep.c:982 [inline] register_lock_class+0xdb6/0x1120 kernel/locking/lockdep.c:1295 __lock_acquire+0x108/0x5d40 kernel/locking/lockdep.c:4935 lock_acquire kernel/locking/lockdep.c:5669 [inline] lock_acquire+0x1e3/0x670 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] rxe_cleanup_task+0x73/0xc0 drivers/infiniband/sw/rxe/rxe_task.c:119 rxe_qp_do_cleanup+0x8c/0x7c0 drivers/infiniband/sw/rxe/rxe_qp.c:776 execute_in_process_context+0x3b/0x150 kernel/workqueue.c:3458 __rxe_cleanup+0x21e/0x370 drivers/infiniband/sw/rxe/rxe_pool.c:233 rxe_create_qp+0x2c2/0x340 drivers/infiniband/sw/rxe/rxe_verbs.c:430 create_qp+0x5ac/0x970 drivers/infiniband/core/verbs.c:1233 ib_create_qp_kernel+0xa1/0x310 drivers/infiniband/core/verbs.c:1344 ib_create_qp include/rdma/ib_verbs.h:3743 [inline] create_mad_qp+0x177/0x380 drivers/infiniband/core/mad.c:2905 ib_mad_port_open drivers/infiniband/core/mad.c:2986 [inline] ib_mad_init_device+0xf40/0x1a90 drivers/infiniband/core/mad.c:3077 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:721 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1332 ib_register_device drivers/infiniband/core/device.c:1420 [inline] ib_register_device+0x8b1/0xbc0 drivers/infiniband/core/device.c:1366 rxe_register_device+0x317/0x3f0 drivers/infiniband/sw/rxe/rxe_verbs.c:1096 rxe_net_add+0x90/0xf0 drivers/infiniband/sw/rxe/rxe_net.c:524 rxe_newlink+0xd5/0x140 drivers/infiniband/sw/rxe/rxe.c:195 nldev_newlink+0x332/0x5e0 drivers/infiniband/core/nldev.c:1731 rdma_nl_rcv_msg+0x371/0x6a0 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb.constprop.0.isra.0+0x2fc/0x440 drivers/infiniband/core/netlink.c:239 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x925/0xe30 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 ____sys_sendmsg+0x71c/0x900 net/socket.c:2504 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2558 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2587 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd95868c0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd9594b3168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd9587abf80 RCX: 00007fd95868c0f9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 00007fd9586e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9db7c9ef R14: 00007fd9594b3300 R15: 0000000000022000 </TASK> infiniband syz1: Couldn't create ib_mad QP1 infiniband syz1: Couldn't open port 1 RDS/IB: syz1: added smc: adding ib device syz1 with port count 1 smc: ib device syz1 port 1 has pnetid syz-executor.2 (5486) used greatest stack depth: 22840 bytes left --- This report is generated by a bot. 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