[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.566215][ T27] audit: type=1800 audit(1584065105.426:25): pid=9531 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.595535][ T27] audit: type=1800 audit(1584065105.426:26): pid=9531 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.638294][ T27] audit: type=1800 audit(1584065105.436:27): pid=9531 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 73.407334][ T9685] iwpm_register_pid: Unable to send a nlmsg (client = 2) [ 73.418601][ T9685] infiniband syz1: RDMA CMA: cma_listen_on_dev, error -98 [ 73.442461][ T9685] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 73.454246][ T9685] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 73.462642][ T9685] CPU: 0 PID: 9685 Comm: syz-executor496 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 73.472504][ T9685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.482574][ T9685] RIP: 0010:nldev_stat_set_doit+0x5db/0xae0 [ 73.488448][ T9685] Code: 01 0f 84 26 03 00 00 e8 83 70 dd fb 4c 8b a4 24 20 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 04 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 2d [ 73.508048][ T9685] RSP: 0018:ffffc90001e473c8 EFLAGS: 00010247 [ 73.514095][ T9685] RAX: dffffc0000000000 RBX: ffff888094050000 RCX: ffffffff859524eb [ 73.522081][ T9685] RDX: 0000000000000000 RSI: ffffffff859524fd RDI: 0000000000000004 [ 73.530047][ T9685] RBP: ffff8880a74f8000 R08: ffff88809741a100 R09: ffff888094050010 [ 73.538954][ T9685] R10: ffffed101280a1dc R11: ffff888094050ee3 R12: 0000000000000000 [ 73.546915][ T9685] R13: ffff8880a47cce40 R14: 0000000000000001 R15: ffff8880a828c0f4 [ 73.554932][ T9685] FS: 0000000002450880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 73.563855][ T9685] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.570422][ T9685] CR2: 0000000001cbdf98 CR3: 0000000095f74000 CR4: 00000000001406f0 [ 73.578375][ T9685] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.586327][ T9685] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.594287][ T9685] Call Trace: [ 73.597563][ T9685] ? nldev_res_get_qp_doit+0x40/0x40 [ 73.602880][ T9685] ? cap_capable+0x1eb/0x250 [ 73.607459][ T9685] ? security_capable+0x8e/0xc0 [ 73.612310][ T9685] ? ns_capable_common+0xe2/0x100 [ 73.617316][ T9685] ? nldev_res_get_qp_doit+0x40/0x40 [ 73.622772][ T9685] rdma_nl_rcv+0x586/0x900 [ 73.627289][ T9685] ? rdma_nl_multicast+0x310/0x310 [ 73.632400][ T9685] ? netlink_deliver_tap+0x227/0xb50 [ 73.637679][ T9685] netlink_unicast+0x537/0x740 [ 73.642424][ T9685] ? netlink_attachskb+0x810/0x810 [ 73.647517][ T9685] ? _copy_from_iter_full+0x25c/0x870 [ 73.652871][ T9685] ? __phys_addr_symbol+0x2c/0x70 [ 73.657880][ T9685] ? __check_object_size+0x171/0x437 [ 73.663161][ T9685] netlink_sendmsg+0x882/0xe10 [ 73.667908][ T9685] ? aa_af_perm+0x260/0x260 [ 73.672390][ T9685] ? netlink_unicast+0x740/0x740 [ 73.677311][ T9685] ? netlink_unicast+0x740/0x740 [ 73.682245][ T9685] sock_sendmsg+0xcf/0x120 [ 73.686657][ T9685] ____sys_sendmsg+0x6b9/0x7d0 [ 73.691404][ T9685] ? kernel_sendmsg+0x50/0x50 [ 73.696070][ T9685] ? lockdep_init_map+0x1b0/0x6c0 [ 73.701080][ T9685] ___sys_sendmsg+0x100/0x170 [ 73.705735][ T9685] ? mark_lock+0xbc/0x1220 [ 73.710133][ T9685] ? sendmsg_copy_msghdr+0x70/0x70 [ 73.715236][ T9685] ? __lock_acquire+0x827/0x5270 [ 73.720160][ T9685] ? find_held_lock+0x2d/0x110 [ 73.725010][ T9685] ? __fd_install+0x1b4/0x600 [ 73.729680][ T9685] ? lock_downgrade+0x7f0/0x7f0 [ 73.734528][ T9685] ? __fget_light+0x1a5/0x270 [ 73.739204][ T9685] __sys_sendmsg+0xec/0x1b0 [ 73.743688][ T9685] ? __sys_sendmsg_sock+0xb0/0xb0 [ 73.748696][ T9685] ? trace_hardirqs_off_caller+0x55/0x230 [ 73.754397][ T9685] ? do_syscall_64+0x21/0x790 [ 73.759059][ T9685] do_syscall_64+0xf6/0x790 [ 73.763549][ T9685] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.769438][ T9685] RIP: 0033:0x4403d9 [ 73.773329][ T9685] 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 [ 73.793022][ T9685] RSP: 002b:00007ffd3ee93058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.801419][ T9685] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403d9 [ 73.809369][ T9685] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 73.817320][ T9685] RBP: 00000000006ca018 R08: 0000000000000008 R09: 00000000004002c8 [ 73.825273][ T9685] R10: 000000000000004a R11: 0000000000000246 R12: 0000000000401c60 [ 73.833249][ T9685] R13: 0000000000401cf0 R14: 0000000000000000 R15: 0000000000000000 [ 73.841220][ T9685] Modules linked in: [ 73.845844][ T9685] ---[ end trace 83f1a27c6bddbc6d ]--- [ 73.851328][ T9685] RIP: 0010:nldev_stat_set_doit+0x5db/0xae0 [ 73.857572][ T9685] Code: 01 0f 84 26 03 00 00 e8 83 70 dd fb 4c 8b a4 24 20 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 04 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 2d [ 73.877203][ T9685] RSP: 0018:ffffc90001e473c8 EFLAGS: 00010247 [ 73.883262][ T9685] RAX: dffffc0000000000 RBX: ffff888094050000 RCX: ffffffff859524eb [ 73.891260][ T9685] RDX: 0000000000000000 RSI: ffffffff859524fd RDI: 0000000000000004 [ 73.899244][ T9685] RBP: ffff8880a74f8000 R08: ffff88809741a100 R09: ffff888094050010 [ 73.907312][ T9685] R10: ffffed101280a1dc R11: ffff888094050ee3 R12: 0000000000000000 [ 73.915275][ T9685] R13: ffff8880a47cce40 R14: 0000000000000001 R15: ffff8880a828c0f4 [ 73.923275][ T9685] FS: 0000000002450880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 73.932260][ T9685] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.938863][ T9685] CR2: ffffffffff600400 CR3: 0000000095f74000 CR4: 00000000001406f0 [ 73.946865][ T9685] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.954922][ T9685] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.962924][ T9685] Kernel panic - not syncing: Fatal exception [ 73.970496][ T9685] Kernel Offset: disabled [ 73.974822][ T9685] Rebooting in 86400 seconds..