[ 94.962352][ T27] audit: type=1800 audit(1582324003.658:25): pid=9776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 95.938156][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 95.938168][ T27] audit: type=1800 audit(1582324004.628:29): pid=9776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 95.967796][ T27] audit: type=1800 audit(1582324004.638:30): pid=9776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 105.525109][ T9928] iwpm_register_pid: Unable to send a nlmsg (client = 2) [ 105.536383][ T9928] infiniband syz1: RDMA CMA: cma_listen_on_dev, error -98 [ 105.549924][ T9928] netlink: 'syz-executor837': attribute type 1 has an invalid length. [ 105.558659][ T9928] netlink: 21 bytes leftover after parsing attributes in process `syz-executor837'. [ 105.568930][ T9928] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 105.581377][ T9928] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 105.590047][ T9928] CPU: 0 PID: 9928 Comm: syz-executor837 Not tainted 5.6.0-rc1-syzkaller #0 [ 105.598707][ T9928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.608801][ T9928] RIP: 0010:__list_del_entry_valid+0x22/0xf5 [ 105.614786][ T9928] Code: 0e fe 48 8b 75 e8 eb b2 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 56 49 89 fe 48 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 <80> 3c 02 00 0f 85 a1 00 00 00 4c 89 f2 4d 8b 66 08 48 b8 00 00 00 [ 105.635677][ T9928] RSP: 0018:ffffc900053d7440 EFLAGS: 00010202 [ 105.641751][ T9928] RAX: dffffc0000000000 RBX: ffffffff87b4e490 RCX: ffffffff815c1ba9 [ 105.649722][ T9928] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000008 [ 105.657693][ T9928] RBP: ffffc900053d7458 R08: 0000000000000004 R09: fffff52000a7ae7b [ 105.665658][ T9928] R10: fffff52000a7ae7a R11: 0000000000000003 R12: 0000000000000000 [ 105.673619][ T9928] R13: 0000000000000008 R14: 0000000000000000 R15: ffffffff8a98b880 [ 105.681732][ T9928] FS: 0000000000ea3880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 105.690657][ T9928] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.697232][ T9928] CR2: 0000000020003028 CR3: 0000000091874000 CR4: 00000000001406f0 [ 105.705298][ T9928] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.713259][ T9928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.721368][ T9928] Call Trace: [ 105.724671][ T9928] smc_ib_remove_dev+0x52/0x2e0 [ 105.729506][ T9928] ? smc_pnet_find_ism_resource+0x630/0x630 [ 105.735416][ T9928] remove_client_context+0xc7/0x120 [ 105.740660][ T9928] disable_device+0x14c/0x230 [ 105.745739][ T9928] ? remove_client_context+0x120/0x120 [ 105.751225][ T9928] __ib_unregister_device+0x9c/0x190 [ 105.756604][ T9928] ib_unregister_device_and_put+0x5f/0x80 [ 105.762556][ T9928] nldev_dellink+0x222/0x340 [ 105.767339][ T9928] ? nldev_set_sys_set_doit+0x240/0x240 [ 105.773861][ T9928] ? is_bpf_image_address+0x1b8/0x290 [ 105.779451][ T9928] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.785698][ T9928] ? ns_capable_common+0x93/0x100 [ 105.790713][ T9928] ? ns_capable+0x20/0x30 [ 105.795043][ T9928] ? __netlink_ns_capable+0x104/0x140 [ 105.801204][ T9928] ? nldev_set_sys_set_doit+0x240/0x240 [ 105.806881][ T9928] rdma_nl_rcv+0x5d9/0x980 [ 105.811430][ T9928] ? rdma_nl_multicast+0x330/0x330 [ 105.816542][ T9928] ? __kasan_check_read+0x11/0x20 [ 105.821675][ T9928] ? netlink_deliver_tap+0x248/0xbf0 [ 105.826967][ T9928] ? __kasan_check_write+0x14/0x20 [ 105.832265][ T9928] netlink_unicast+0x59e/0x7e0 [ 105.837128][ T9928] ? netlink_attachskb+0x870/0x870 [ 105.842362][ T9928] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 105.848131][ T9928] ? __check_object_size+0x3d/0x437 [ 105.853325][ T9928] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 105.859057][ T9928] netlink_sendmsg+0x91c/0xea0 [ 105.863816][ T9928] ? netlink_unicast+0x7e0/0x7e0 [ 105.869059][ T9928] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 105.875137][ T9928] ? apparmor_socket_sendmsg+0x2a/0x30 [ 105.880605][ T9928] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.886858][ T9928] ? security_socket_sendmsg+0x8d/0xc0 [ 105.892464][ T9928] ? netlink_unicast+0x7e0/0x7e0 [ 105.897400][ T9928] sock_sendmsg+0xd7/0x130 [ 105.901890][ T9928] __sys_sendto+0x262/0x380 [ 105.906651][ T9928] ? __ia32_sys_getpeername+0xb0/0xb0 [ 105.912018][ T9928] ? lock_downgrade+0x920/0x920 [ 105.916876][ T9928] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.923382][ T9928] ? __fd_install+0x1fb/0x640 [ 105.928041][ T9928] ? fd_install+0x4d/0x60 [ 105.932468][ T9928] ? __sys_socket+0x180/0x220 [ 105.937241][ T9928] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.942702][ T9928] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.948175][ T9928] ? do_syscall_64+0x26/0x790 [ 105.952874][ T9928] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.958945][ T9928] __x64_sys_sendto+0xe1/0x1a0 [ 105.963733][ T9928] do_syscall_64+0xfa/0x790 [ 105.968539][ T9928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.974785][ T9928] RIP: 0033:0x4404d9 [ 105.978770][ T9928] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 105.999633][ T9928] RSP: 002b:00007ffdb793fb28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 106.008247][ T9928] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004404d9 [ 106.016666][ T9928] RDX: 0000000000010a73 RSI: 0000000020000000 RDI: 0000000000000004 [ 106.025470][ T9928] RBP: 00000000006ca018 R08: 0000000000000000 R09: 4b6ae4f95a5de35b [ 106.033696][ T9928] R10: 00000000000008c0 R11: 0000000000000246 R12: 0000000000401d60 [ 106.041879][ T9928] R13: 0000000000401df0 R14: 0000000000000000 R15: 0000000000000000 [ 106.050040][ T9928] Modules linked in: [ 106.054113][ T9928] ---[ end trace 79db9bfdece7383f ]--- [ 106.060024][ T9928] RIP: 0010:__list_del_entry_valid+0x22/0xf5 [ 106.066124][ T9928] Code: 0e fe 48 8b 75 e8 eb b2 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 56 49 89 fe 48 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 <80> 3c 02 00 0f 85 a1 00 00 00 4c 89 f2 4d 8b 66 08 48 b8 00 00 00 [ 106.087404][ T9928] RSP: 0018:ffffc900053d7440 EFLAGS: 00010202 [ 106.093937][ T9928] RAX: dffffc0000000000 RBX: ffffffff87b4e490 RCX: ffffffff815c1ba9 [ 106.102111][ T9928] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000008 [ 106.110545][ T9928] RBP: ffffc900053d7458 R08: 0000000000000004 R09: fffff52000a7ae7b [ 106.118847][ T9928] R10: fffff52000a7ae7a R11: 0000000000000003 R12: 0000000000000000 [ 106.127513][ T9928] R13: 0000000000000008 R14: 0000000000000000 R15: ffffffff8a98b880 [ 106.135847][ T9928] FS: 0000000000ea3880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 106.145264][ T9928] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.152030][ T9928] CR2: 0000000020003028 CR3: 0000000091874000 CR4: 00000000001406f0 [ 106.160541][ T9928] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.168950][ T9928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.177284][ T9928] Kernel panic - not syncing: Fatal exception [ 106.185391][ T9928] Kernel Offset: disabled [ 106.189864][ T9928] Rebooting in 86400 seconds..