[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 57.579573][ T7181] dummy0 speed is unknown, defaulting to 1000 [ 57.586432][ T7181] dummy0 speed is unknown, defaulting to 1000 [ 57.594117][ T7181] dummy0 speed is unknown, defaulting to 1000 [ 57.684286][ T7181] infiniband syz0: set down [ 57.689160][ T3172] dummy0 speed is unknown, defaulting to 1000 [ 57.695399][ T7181] infiniband syz0: added dummy0 [ 57.726597][ T7181] general protection fault, probably for non-canonical address 0xdffffc000000008e: 0000 [#1] PREEMPT SMP KASAN [ 57.738336][ T7181] KASAN: null-ptr-deref in range [0x0000000000000470-0x0000000000000477] [ 57.746923][ T7181] CPU: 1 PID: 7181 Comm: syz-executor620 Not tainted 5.7.0-rc5-syzkaller #0 [ 57.755619][ T7181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.765687][ T7181] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 57.771059][ T7181] Code: 80 3c 02 00 0f 85 45 0a 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 5a [ 57.790654][ T7181] RSP: 0018:ffffc90000f86fe0 EFLAGS: 00010206 [ 57.796696][ T7181] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87527a2a [ 57.804641][ T7181] RDX: 000000000000008e RSI: ffffffff87527a48 RDI: 0000000000000470 [ 57.812583][ T7181] RBP: 0000000000000001 R08: ffff8880915d4600 R09: ffffed10128e589f [ 57.820527][ T7181] R10: ffff88809472c4f7 R11: ffffed10128e589e R12: ffff88809472c000 [ 57.828469][ T7181] R13: ffffffff8a74a400 R14: 1ffff920001f0e07 R15: ffff88809472c4e8 [ 57.836414][ T7181] FS: 00007f57aaccb700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 57.845316][ T7181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.852147][ T7181] CR2: 0000000020000044 CR3: 000000009dcad000 CR4: 00000000001406e0 [ 57.860091][ T7181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.868034][ T7181] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.875976][ T7181] Call Trace: [ 57.879260][ T7181] ? rds_ib_remove_one+0x280/0x280 [ 57.884364][ T7181] add_client_context+0x3b4/0x520 [ 57.889364][ T7181] ? ib_device_get_by_netdev+0x4f0/0x4f0 [ 57.894968][ T7181] ? rxe_enable_driver+0x63/0x90 [ 57.899878][ T7181] enable_device_and_get+0x1cd/0x3b0 [ 57.905136][ T7181] ? add_one_compat_dev+0x800/0x800 [ 57.910304][ T7181] ? rxe_ib_alloc_hw_stats+0xf9/0x130 [ 57.915649][ T7181] ib_register_device+0xa12/0xda0 [ 57.920664][ T7181] ? enable_device_and_get+0x3b0/0x3b0 [ 57.926097][ T7181] ? crypto_create_tfm+0x118/0x2f0 [ 57.931187][ T7181] ? crypto_alloc_tfm+0x124/0x340 [ 57.936705][ T7181] ? ib_device_set_netdev+0x499/0x680 [ 57.942051][ T7181] rxe_register_device+0x4fa/0x621 [ 57.947137][ T7181] rxe_add+0x1353/0x17df [ 57.951358][ T7181] rxe_net_add+0x8c/0xe0 [ 57.955572][ T7181] rxe_newlink+0x34/0x90 [ 57.959889][ T7181] nldev_newlink+0x29e/0x420 [ 57.964453][ T7181] ? nldev_set_doit+0x410/0x410 [ 57.969290][ T7181] ? lock_release+0x800/0x800 [ 57.973940][ T7181] ? apparmor_capable+0x454/0x8a0 [ 57.978937][ T7181] ? apparmor_capable+0x454/0x8a0 [ 57.983933][ T7181] ? apparmor_cred_prepare+0x750/0x750 [ 57.989378][ T7181] ? apparmor_cred_prepare+0x750/0x750 [ 57.994823][ T7181] ? cap_capable+0x1eb/0x250 [ 57.999409][ T7181] ? ns_capable_common+0xe2/0x100 [ 58.004406][ T7181] ? nldev_set_doit+0x410/0x410 [ 58.009248][ T7181] rdma_nl_rcv+0x586/0x900 [ 58.013639][ T7181] ? rdma_nl_multicast+0x310/0x310 [ 58.018739][ T7181] ? netlink_deliver_tap+0x227/0xb50 [ 58.024018][ T7181] netlink_unicast+0x537/0x740 [ 58.028757][ T7181] ? netlink_attachskb+0x810/0x810 [ 58.033838][ T7181] ? _copy_from_iter_full+0x25c/0x870 [ 58.039183][ T7181] ? __phys_addr_symbol+0x2c/0x70 [ 58.044182][ T7181] ? __check_object_size+0x171/0x437 [ 58.049455][ T7181] netlink_sendmsg+0x882/0xe10 [ 58.054201][ T7181] ? aa_af_perm+0x260/0x260 [ 58.058679][ T7181] ? netlink_unicast+0x740/0x740 [ 58.063615][ T7181] ? netlink_unicast+0x740/0x740 [ 58.068556][ T7181] sock_sendmsg+0xcf/0x120 [ 58.072947][ T7181] ____sys_sendmsg+0x6e6/0x810 [ 58.077687][ T7181] ? kernel_sendmsg+0x50/0x50 [ 58.082342][ T7181] ___sys_sendmsg+0x100/0x170 [ 58.087007][ T7181] ? sendmsg_copy_msghdr+0x70/0x70 [ 58.092090][ T7181] ? prep_transhuge_page+0xa0/0xa0 [ 58.097174][ T7181] ? __fget_files+0x32f/0x500 [ 58.101826][ T7181] ? ksys_dup3+0x3c0/0x3c0 [ 58.106212][ T7181] ? do_page_fault+0x59e/0x13da [ 58.111035][ T7181] ? vm_insert_pages+0x6a0/0x6a0 [ 58.115947][ T7181] ? __fget_light+0x20e/0x270 [ 58.120598][ T7181] __sys_sendmsg+0xe5/0x1b0 [ 58.125078][ T7181] ? __sys_sendmsg_sock+0xb0/0xb0 [ 58.130074][ T7181] ? down_read_nested+0x420/0x420 [ 58.135084][ T7181] ? trace_hardirqs_off_caller+0x55/0x230 [ 58.140783][ T7181] ? do_syscall_64+0x21/0x7d0 [ 58.145531][ T7181] do_syscall_64+0xf6/0x7d0 [ 58.150022][ T7181] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.155884][ T7181] RIP: 0033:0x4459b9 [ 58.159752][ T7181] Code: e8 bc b7 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.179326][ T7181] RSP: 002b:00007f57aaccad98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.187707][ T7181] RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 00000000004459b9 [ 58.195652][ T7181] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 58.203597][ T7181] RBP: 00000000006dac20 R08: 0000000000000014 R09: 0000000000000000 [ 58.211567][ T7181] R10: 0000000000000041 R11: 0000000000000246 R12: 00000000006dac2c [ 58.219511][ T7181] R13: 000030796d6d7564 R14: 0000000000003069 R15: 6669775f74726976 [ 58.227457][ T7181] Modules linked in: [ 58.231954][ T7181] ---[ end trace f787b77ac0d4ae3d ]--- [ 58.237428][ T7181] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 58.242902][ T7181] Code: 80 3c 02 00 0f 85 45 0a 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 5a [ 58.262570][ T7181] RSP: 0018:ffffc90000f86fe0 EFLAGS: 00010206 [ 58.268781][ T7181] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87527a2a [ 58.276781][ T7181] RDX: 000000000000008e RSI: ffffffff87527a48 RDI: 0000000000000470 [ 58.285599][ T7181] RBP: 0000000000000001 R08: ffff8880915d4600 R09: ffffed10128e589f [ 58.293597][ T7181] R10: ffff88809472c4f7 R11: ffffed10128e589e R12: ffff88809472c000 [ 58.301630][ T7181] R13: ffffffff8a74a400 R14: 1ffff920001f0e07 R15: ffff88809472c4e8 [ 58.309587][ T7181] FS: 00007f57aaccb700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 58.318810][ T7181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.325472][ T7181] CR2: 0000000020000044 CR3: 000000009dcad000 CR4: 00000000001406e0 [ 58.334320][ T7181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.342328][ T7181] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.350313][ T7181] Kernel panic - not syncing: Fatal exception [ 58.357654][ T7181] Kernel Offset: disabled [ 58.362009][ T7181] Rebooting in 86400 seconds..