[ 74.730916][ T27] audit: type=1800 audit(1582615294.890:26): pid=9814 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 75.817944][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 75.817954][ T27] audit: type=1800 audit(1582615295.990:29): pid=9814 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 [ 75.844683][ T27] audit: type=1800 audit(1582615295.990:30): pid=9814 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 '10.128.1.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 86.128514][ T9967] IPVS: ftp: loaded support on port[0] = 21 [ 86.236045][ T9967] infiniband syz1: set active [ 86.241357][ T9967] infiniband syz1: added syz_tun [ 86.270288][ T9967] general protection fault, probably for non-canonical address 0xdffffc0000000086: 0000 [#1] PREEMPT SMP KASAN [ 86.282224][ T9967] KASAN: null-ptr-deref in range [0x0000000000000430-0x0000000000000437] [ 86.290630][ T9967] CPU: 1 PID: 9967 Comm: syz-executor991 Not tainted 5.6.0-rc3-syzkaller #0 [ 86.299353][ T9967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.309596][ T9967] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 86.314967][ T9967] Code: 03 80 3c 02 00 0f 85 6c 0a 00 00 49 8b 9d a8 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 30 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 7e [ 86.334712][ T9967] RSP: 0018:ffffc90005f3ef28 EFLAGS: 00010202 [ 86.341416][ T9967] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8767eaeb [ 86.350190][ T9967] RDX: 0000000000000086 RSI: ffffffff8767eb09 RDI: 0000000000000430 [ 86.358245][ T9967] RBP: ffffc90005f3ef60 R08: ffff88809f95a080 R09: ffffed1013c8d09c [ 86.366225][ T9967] R10: ffffed1013c8d09b R11: ffff88809e4684df R12: ffff88809e468558 [ 86.375085][ T9967] R13: ffff88809e468000 R14: ffffffff8a905940 R15: ffffffff8a9059d0 [ 86.383146][ T9967] FS: 00000000016bd880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 86.392200][ T9967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.398905][ T9967] CR2: 00007fc079683000 CR3: 00000000a11c5000 CR4: 00000000001406e0 [ 86.406916][ T9967] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.414926][ T9967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.422920][ T9967] Call Trace: [ 86.426213][ T9967] ? rds_ib_remove_one+0x290/0x290 [ 86.431408][ T9967] add_client_context+0x3dd/0x550 [ 86.436419][ T9967] ? ib_device_get_by_netdev+0x530/0x530 [ 86.442055][ T9967] ? rxe_enable_driver+0x68/0x90 [ 86.446992][ T9967] enable_device_and_get+0x1df/0x3c0 [ 86.452270][ T9967] ? add_one_compat_dev+0x7e0/0x7e0 [ 86.457584][ T9967] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 86.463313][ T9967] ib_register_device+0xa89/0xe40 [ 86.468334][ T9967] ? enable_device_and_get+0x3c0/0x3c0 [ 86.473793][ T9967] rxe_register_device+0x52e/0x655 [ 86.478930][ T9967] rxe_add+0x122b/0x1661 [ 86.483344][ T9967] rxe_net_add+0x91/0xf0 [ 86.487667][ T9967] rxe_newlink+0x39/0x90 [ 86.491943][ T9967] nldev_newlink+0x28a/0x430 [ 86.496528][ T9967] ? nldev_set_doit+0x420/0x420 [ 86.501401][ T9967] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 86.506908][ T9967] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.513167][ T9967] ? cap_capable+0x205/0x270 [ 86.517754][ T9967] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.524137][ T9967] ? ns_capable+0x20/0x30 [ 86.528470][ T9967] ? __netlink_ns_capable+0x104/0x140 [ 86.534042][ T9967] ? nldev_set_doit+0x420/0x420 [ 86.538882][ T9967] rdma_nl_rcv+0x5d9/0x980 [ 86.543305][ T9967] ? rdma_nl_multicast+0x330/0x330 [ 86.548419][ T9967] ? __kasan_check_read+0x11/0x20 [ 86.553662][ T9967] ? netlink_deliver_tap+0x248/0xbf0 [ 86.558945][ T9967] ? __kasan_check_write+0x14/0x20 [ 86.564338][ T9967] netlink_unicast+0x59e/0x7e0 [ 86.569523][ T9967] ? netlink_attachskb+0x870/0x870 [ 86.574656][ T9967] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 86.580379][ T9967] ? __check_object_size+0x3d/0x437 [ 86.585617][ T9967] netlink_sendmsg+0x91c/0xea0 [ 86.590376][ T9967] ? netlink_unicast+0x7e0/0x7e0 [ 86.595400][ T9967] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 86.601654][ T9967] ? apparmor_socket_sendmsg+0x2a/0x30 [ 86.607126][ T9967] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.614298][ T9967] ? security_socket_sendmsg+0x8d/0xc0 [ 86.619747][ T9967] ? netlink_unicast+0x7e0/0x7e0 [ 86.624813][ T9967] sock_sendmsg+0xd7/0x130 [ 86.629289][ T9967] ____sys_sendmsg+0x753/0x880 [ 86.634081][ T9967] ? kernel_sendmsg+0x50/0x50 [ 86.638768][ T9967] ___sys_sendmsg+0x100/0x170 [ 86.643483][ T9967] ? sendmsg_copy_msghdr+0x70/0x70 [ 86.648680][ T9967] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 86.654666][ T9967] ? prep_transhuge_page+0xa0/0xa0 [ 86.659775][ T9967] ? do_page_fault+0x579/0x12e1 [ 86.664844][ T9967] ? find_held_lock+0x35/0x130 [ 86.669600][ T9967] ? do_page_fault+0x579/0x12e1 [ 86.674436][ T9967] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.681502][ T9967] ? __fget_light+0x1ad/0x270 [ 86.686188][ T9967] ? __fdget+0x1b/0x20 [ 86.690247][ T9967] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 86.696506][ T9967] __sys_sendmsg+0x105/0x1d0 [ 86.701085][ T9967] ? __sys_sendmsg_sock+0xc0/0xc0 [ 86.706099][ T9967] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 86.711555][ T9967] ? do_syscall_64+0x26/0x790 [ 86.716227][ T9967] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.722293][ T9967] ? do_syscall_64+0x26/0x790 [ 86.726959][ T9967] __x64_sys_sendmsg+0x78/0xb0 [ 86.731702][ T9967] do_syscall_64+0xfa/0x790 [ 86.736215][ T9967] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.742086][ T9967] RIP: 0033:0x4413c9 [ 86.746047][ T9967] 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 6b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 86.765641][ T9967] RSP: 002b:00007ffc95f02f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.774082][ T9967] RAX: ffffffffffffffda RBX: 00007ffc95f02f20 RCX: 00000000004413c9 [ 86.782084][ T9967] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 86.790928][ T9967] RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 86.798910][ T9967] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.807008][ T9967] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 86.815072][ T9967] Modules linked in: [ 86.824360][ T9967] ---[ end trace e93c4ca290558f1d ]--- [ 86.829959][ T9967] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 86.835455][ T9967] Code: 03 80 3c 02 00 0f 85 6c 0a 00 00 49 8b 9d a8 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 30 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 7e [ 86.855382][ T9967] RSP: 0018:ffffc90005f3ef28 EFLAGS: 00010202 [ 86.862065][ T9967] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8767eaeb [ 86.870145][ T9967] RDX: 0000000000000086 RSI: ffffffff8767eb09 RDI: 0000000000000430 [ 86.878300][ T9967] RBP: ffffc90005f3ef60 R08: ffff88809f95a080 R09: ffffed1013c8d09c [ 86.886378][ T9967] R10: ffffed1013c8d09b R11: ffff88809e4684df R12: ffff88809e468558 [ 86.894512][ T9967] R13: ffff88809e468000 R14: ffffffff8a905940 R15: ffffffff8a9059d0 [ 86.902642][ T9967] FS: 00000000016bd880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 86.911711][ T9967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.918378][ T9967] CR2: 00007fc079683000 CR3: 00000000a11c5000 CR4: 00000000001406e0 [ 86.926445][ T9967] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.934477][ T9967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.942498][ T9967] Kernel panic - not syncing: Fatal exception [ 86.950003][ T9967] Kernel Offset: disabled [ 86.954338][ T9967] Rebooting in 86400 seconds..