[ 65.937227][ T26] audit: type=1800 audit(1558409619.484:30): pid=9021 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 69.256171][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 69.256186][ T26] audit: type=1400 audit(1558409622.844:35): avc: denied { map } for pid=9198 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts. executing program [ 90.639673][ T26] audit: type=1400 audit(1558409644.234:36): avc: denied { map } for pid=9210 comm="syz-executor856" path="/root/syz-executor856998218" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 90.642303][ T9210] ------------[ cut here ]------------ [ 90.672579][ T9210] DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS) [ 90.672874][ T9210] WARNING: CPU: 0 PID: 9210 at kernel/locking/lockdep.c:3764 __lock_acquire+0x17b5/0x5490 [ 90.689497][ T9210] Kernel panic - not syncing: panic_on_warn set ... [ 90.696184][ T9210] CPU: 0 PID: 9210 Comm: syz-executor856 Not tainted 5.2.0-rc1+ #1 [ 90.704061][ T9210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.714565][ T9210] Call Trace: [ 90.717876][ T9210] dump_stack+0x172/0x1f0 [ 90.722217][ T9210] ? __lock_acquire+0x16d0/0x5490 [ 90.727260][ T9210] panic+0x2cb/0x744 [ 90.731379][ T9210] ? __warn_printk+0xf3/0xf3 [ 90.736267][ T9210] ? __lock_acquire+0x17b5/0x5490 [ 90.741489][ T9210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.747891][ T9210] ? __warn.cold+0x5/0x4d [ 90.752411][ T9210] ? __warn+0xe8/0x1d0 [ 90.756486][ T9210] ? __lock_acquire+0x17b5/0x5490 [ 90.761517][ T9210] __warn.cold+0x20/0x4d [ 90.765767][ T9210] ? vprintk_emit+0x1ea/0x700 [ 90.770578][ T9210] ? __lock_acquire+0x17b5/0x5490 [ 90.775611][ T9210] report_bug+0x263/0x2b0 [ 90.779942][ T9210] do_error_trap+0x11b/0x200 [ 90.784527][ T9210] do_invalid_op+0x37/0x50 [ 90.789049][ T9210] ? __lock_acquire+0x17b5/0x5490 [ 90.794066][ T9210] invalid_op+0x14/0x20 [ 90.798328][ T9210] RIP: 0010:__lock_acquire+0x17b5/0x5490 [ 90.804123][ T9210] Code: d2 0f 85 c7 2c 00 00 44 8b 3d a7 a0 29 08 45 85 ff 0f 85 57 f3 ff ff 48 c7 c6 20 c1 6b 87 48 c7 c7 00 98 6b 87 e8 09 d5 eb ff <0f> 0b e9 40 f3 ff ff 0f 0b e9 83 f1 ff ff 8b 0d 47 88 0e 09 85 c9 [ 90.824220][ T9210] RSP: 0018:ffff88809a31f3e0 EFLAGS: 00010086 [ 90.830484][ T9210] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 90.838667][ T9210] RDX: 0000000000000000 RSI: ffffffff815ac7e6 RDI: ffffed1013463e6e [ 90.846729][ T9210] RBP: ffff88809a31f588 R08: ffff8880a83ca580 R09: fffffbfff11730e9 [ 90.854811][ T9210] R10: fffffbfff11730e8 R11: ffffffff88b98743 R12: 00000000301836b1 [ 90.863029][ T9210] R13: 0000000000000000 R14: 00000000000416b1 R15: 0000000000000000 [ 90.871915][ T9210] ? vprintk_func+0x86/0x189 [ 90.877054][ T9210] ? sock_diag_rcv+0x2b/0x40 [ 90.882037][ T9210] ? netlink_unicast+0x531/0x710 [ 90.887439][ T9210] ? netlink_sendmsg+0x8ae/0xd70 [ 90.892972][ T9210] ? sock_sendmsg+0xd7/0x130 [ 90.897848][ T9210] ? ___sys_sendmsg+0x803/0x920 [ 90.902968][ T9210] ? __sys_sendmsg+0x105/0x1d0 [ 90.907940][ T9210] ? __x64_sys_sendmsg+0x78/0xb0 [ 90.913023][ T9210] ? do_syscall_64+0xfd/0x680 [ 90.917955][ T9210] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.924385][ T9210] ? mark_held_locks+0xf0/0xf0 [ 90.929286][ T9210] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 90.935037][ T9210] ? find_held_lock+0x35/0x130 [ 90.939899][ T9210] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 90.945872][ T9210] lock_acquire+0x16f/0x3f0 [ 90.950411][ T9210] ? rhashtable_walk_enter+0xf9/0x390 [ 90.956359][ T9210] _raw_spin_lock+0x2f/0x40 [ 90.961021][ T9210] ? rhashtable_walk_enter+0xf9/0x390 [ 90.966613][ T9210] rhashtable_walk_enter+0xf9/0x390 [ 90.971826][ T9210] __tipc_dump_start+0x1fa/0x3c0 [ 90.976938][ T9210] tipc_dump_start+0x70/0x90 [ 90.981606][ T9210] __netlink_dump_start+0x4f8/0x7d0 [ 90.986815][ T9210] ? __tipc_dump_start+0x3c0/0x3c0 [ 90.991927][ T9210] tipc_sock_diag_handler_dump+0x1d9/0x270 [ 90.997831][ T9210] ? __tipc_diag_gen_cookie+0x90/0x90 [ 91.003609][ T9210] ? sock_diag_rcv+0x1c/0x40 [ 91.008343][ T9210] ? __tipc_dump_start+0x3c0/0x3c0 [ 91.013459][ T9210] ? tipc_unregister_sysctl+0x20/0x20 [ 91.018908][ T9210] ? tipc_ioctl+0x2e0/0x2e0 [ 91.023519][ T9210] sock_diag_rcv_msg+0x319/0x410 [ 91.028582][ T9210] netlink_rcv_skb+0x177/0x450 [ 91.033355][ T9210] ? sock_diag_bind+0x80/0x80 [ 91.038316][ T9210] ? netlink_ack+0xb50/0xb50 [ 91.043065][ T9210] ? kasan_check_read+0x11/0x20 [ 91.048083][ T9210] ? netlink_deliver_tap+0x254/0xbf0 [ 91.053370][ T9210] sock_diag_rcv+0x2b/0x40 [ 91.057862][ T9210] netlink_unicast+0x531/0x710 [ 91.062808][ T9210] ? netlink_attachskb+0x770/0x770 [ 91.067970][ T9210] ? _copy_from_iter_full+0x25d/0x8c0 [ 91.073617][ T9210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.080420][ T9210] netlink_sendmsg+0x8ae/0xd70 [ 91.085498][ T9210] ? netlink_unicast+0x710/0x710 [ 91.090613][ T9210] ? tomoyo_socket_sendmsg+0x26/0x30 [ 91.096062][ T9210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.102347][ T9210] ? security_socket_sendmsg+0x8d/0xc0 [ 91.108168][ T9210] ? netlink_unicast+0x710/0x710 [ 91.113118][ T9210] sock_sendmsg+0xd7/0x130 [ 91.117705][ T9210] ___sys_sendmsg+0x803/0x920 [ 91.122414][ T9210] ? copy_msghdr_from_user+0x430/0x430 [ 91.128014][ T9210] ? prep_transhuge_page+0xa0/0xa0 [ 91.133331][ T9210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.139813][ T9210] ? __handle_mm_fault+0x7cb/0x3eb0 [ 91.145245][ T9210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.151502][ T9210] ? __fget_light+0x1a9/0x230 [ 91.156644][ T9210] ? __fdget+0x1b/0x20 [ 91.166285][ T9210] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.176893][ T9210] __sys_sendmsg+0x105/0x1d0 [ 91.181481][ T9210] ? __ia32_sys_shutdown+0x80/0x80 [ 91.186640][ T9210] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.192115][ T9210] ? do_syscall_64+0x26/0x680 [ 91.197191][ T9210] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.203401][ T9210] ? do_syscall_64+0x26/0x680 [ 91.208254][ T9210] __x64_sys_sendmsg+0x78/0xb0 [ 91.213020][ T9210] do_syscall_64+0xfd/0x680 [ 91.217721][ T9210] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.223857][ T9210] RIP: 0033:0x440209 [ 91.227858][ T9210] 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 [ 91.247946][ T9210] RSP: 002b:00007fff5016e048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.256471][ T9210] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440209 [ 91.264674][ T9210] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 91.273929][ T9210] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 91.281946][ T9210] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a90 [ 91.289992][ T9210] R13: 0000000000401b20 R14: 0000000000000000 R15: 0000000000000000 [ 91.299221][ T9210] Kernel Offset: disabled [ 91.303889][ T9210] Rebooting in 86400 seconds..