[ 33.382010] audit: type=1800 audit(1585283425.397:33): pid=7145 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 33.409301] audit: type=1800 audit(1585283425.397:34): pid=7145 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 36.350618] random: sshd: uninitialized urandom read (32 bytes read) [ 36.520974] audit: type=1400 audit(1585283428.537:35): avc: denied { map } for pid=7318 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 [ 36.570438] random: sshd: uninitialized urandom read (32 bytes read) [ 37.268991] random: sshd: uninitialized urandom read (32 bytes read) [ 37.457149] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. [ 43.002612] random: sshd: uninitialized urandom read (32 bytes read) [ 43.121830] audit: type=1400 audit(1585283435.137:36): avc: denied { map } for pid=7331 comm="syz-executor139" path="/root/syz-executor139017111" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 43.136843] gfs2: fsid=trusted.Wverlay.upper: Trying to join cluster "lock_nolock", "trusted.Wverlay.upper" [ 43.165986] sysfs: cannot create duplicate filename '/fs/gfs2/trusted.Wverlay.upper' [ 43.183157] sysfs: cannot create duplicate filename '/fs/gfs2/trusted.Wverlay.upper' [ 43.193115] ------------[ cut here ]------------ [ 43.197893] WARNING: CPU: 0 PID: 7340 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d [ 43.202249] sysfs: cannot create duplicate filename '/fs/gfs2/trusted.Wverlay.upper' [ 43.206123] Kernel panic - not syncing: panic_on_warn set ... [ 43.206123] [ 43.206132] CPU: 0 PID: 7340 Comm: syz-executor139 Not tainted 4.14.174-syzkaller #0 [ 43.206136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.206140] Call Trace: [ 43.206155] dump_stack+0x13e/0x194 [ 43.206165] panic+0x1f9/0x42d [ 43.242288] ------------[ cut here ]------------ [ 43.244801] ? add_taint.cold+0x16/0x16 [ 43.247983] WARNING: CPU: 1 PID: 7338 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d [ 43.252712] ? sysfs_warn_dup.cold+0x17/0x2d [ 43.256659] Modules linked in: [ 43.264873] ? sysfs_warn_dup.cold+0x17/0x2d [ 43.272431] __warn.cold+0x2f/0x30 [ 43.276821] CPU: 1 PID: 7338 Comm: syz-executor139 Not tainted 4.14.174-syzkaller #0 [ 43.280341] ? ist_end_non_atomic+0x10/0x10 [ 43.288197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.292504] ? sysfs_warn_dup.cold+0x17/0x2d [ 43.301855] task: ffff88808fc2e080 task.stack: ffff8880989e0000 [ 43.306253] report_bug+0x20a/0x248 [ 43.312290] RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d [ 43.315901] do_error_trap+0x195/0x2d0 [ 43.320891] RSP: 0018:ffff8880989e77c0 EFLAGS: 00010286 [ 43.324757] ? math_error+0x2d0/0x2d0 [ 43.324766] ? ___preempt_schedule+0x16/0x18 [ 43.330214] RAX: 0000000000000048 RBX: ffff88809ea29a50 RCX: 0000000000000000 [ 43.334014] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.338406] RDX: 0000000000000000 RSI: ffffffff86ac07e0 RDI: ffffed101313ceee [ 43.345666] invalid_op+0x1b/0x40 [ 43.350479] RBP: ffff88809eb22580 R08: 0000000000000048 R09: 0000000000000000 [ 43.350485] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882194fb540 [ 43.357746] RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d [ 43.361197] R13: ffff8880a16f43c0 R14: ffff88809ea29a68 R15: ffff88809eb29a18 [ 43.361204] FS: 00000000023de880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 43.368455] RSP: 0018:ffff888085c7f7c0 EFLAGS: 00010286 [ 43.375716] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.375723] CR2: 00007ffec8910798 CR3: 00000000a4271000 CR4: 00000000001406e0 [ 43.380717] RAX: 0000000000000048 RBX: ffff88809eb29a10 RCX: 0000000000000000 [ 43.387970] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.396174] RDX: 0000000000000000 RSI: ffffffff86ac07e0 RDI: ffffed1010b8feee [ 43.401528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.407406] RBP: ffff888085214180 R08: 0000000000000048 R09: 0000000000000000 [ 43.414745] Call Trace: [ 43.421994] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882194fb540 [ 43.429257] sysfs_create_dir_ns+0x16f/0x1d0 [ 43.436496] R13: ffff8880aa50d880 R14: ffff88809eb29a28 R15: ffff8880981619d8 [ 43.443751] kobject_add_internal+0x27f/0x830 [ 43.451011] sysfs_create_dir_ns+0x16f/0x1d0 [ 43.453572] kobject_init_and_add+0xde/0x120 [ 43.460847] kobject_add_internal+0x27f/0x830 [ 43.465236] ? kobject_add_internal+0x830/0x830 [ 43.472494] kobject_init_and_add+0xde/0x120 [ 43.476966] ? vsnprintf+0x25e/0x1350 [ 43.481353] ? kobject_add_internal+0x830/0x830 [ 43.485743] gfs2_sys_fs_add+0x184/0x3f0 [ 43.490214] ? vsnprintf+0x25e/0x1350 [ 43.494882] ? recover_store+0x100/0x100 [ 43.499284] gfs2_sys_fs_add+0x184/0x3f0 [ 43.503067] ? snprintf+0xa5/0xd0 [ 43.507715] ? recover_store+0x100/0x100 [ 43.511772] ? filemap_write_and_wait+0x86/0xa0 [ 43.515552] ? snprintf+0xa5/0xd0 [ 43.519594] ? kill_bdev+0x7c/0xe0 [ 43.523639] ? filemap_write_and_wait+0x86/0xa0 [ 43.527069] ? memcpy+0x35/0x50 [ 43.531107] ? kill_bdev+0x7c/0xe0 [ 43.531116] ? memcpy+0x35/0x50 [ 43.535766] fill_super+0x11a9/0x22a0 [ 43.539213] fill_super+0x11a9/0x22a0 [ 43.542752] ? gfs2_online_uevent+0x1b0/0x1b0 [ 43.547409] ? gfs2_online_uevent+0x1b0/0x1b0 [ 43.550669] ? snprintf+0xa5/0xd0 [ 43.554184] ? snprintf+0xa5/0xd0 [ 43.557443] ? vsprintf+0x30/0x30 [ 43.561862] ? vsprintf+0x30/0x30 [ 43.565647] ? set_blocksize+0x24b/0x2e0 [ 43.570128] ? set_blocksize+0x24b/0x2e0 [ 43.574620] gfs2_mount+0x433/0x4fc [ 43.578051] gfs2_mount+0x433/0x4fc [ 43.581481] ? fill_super+0x22a0/0x22a0 [ 43.585053] ? fill_super+0x22a0/0x22a0 [ 43.588503] mount_fs+0x92/0x2a0 [ 43.592545] mount_fs+0x92/0x2a0 [ 43.596575] vfs_kern_mount.part.0+0x5b/0x3c0 [ 43.600193] vfs_kern_mount.part.0+0x5b/0x3c0 [ 43.603800] do_mount+0x3c9/0x24f0 [ 43.607758] do_mount+0x3c9/0x24f0 [ 43.611727] ? rcu_read_lock_sched_held+0x10a/0x130 [ 43.615092] ? rcu_read_lock_sched_held+0x10a/0x130 [ 43.618451] ? kmem_cache_alloc_trace+0x63e/0x7b0 [ 43.622941] ? kmem_cache_alloc_trace+0x63e/0x7b0 [ 43.627420] ? copy_mount_string+0x40/0x40 [ 43.630952] ? copy_mount_string+0x40/0x40 [ 43.634561] ? _copy_from_user+0x94/0x100 [ 43.639556] ? _copy_from_user+0x94/0x100 [ 43.644669] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.649509] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.654333] ? copy_mount_options+0x1ec/0x2e0 [ 43.658546] ? copy_mount_options+0x1ec/0x2e0 [ 43.662759] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.666884] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.671018] SyS_mount+0xa8/0x120 [ 43.674886] SyS_mount+0xa8/0x120 [ 43.678752] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.683225] ? copy_mnt_ns+0x8a0/0x8a0 [ 43.688657] do_syscall_64+0x1d5/0x640 [ 43.692522] do_syscall_64+0x1d5/0x640 [ 43.696393] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.699823] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.703252] RIP: 0033:0x447b6a [ 43.707130] RIP: 0033:0x447b6a [ 43.710995] RSP: 002b:00007ffff37e8db8 EFLAGS: 00000293 [ 43.714861] RSP: 002b:00007ffff37e8db8 EFLAGS: 00000293 [ 43.718726] ORIG_RAX: 00000000000000a5 [ 43.723891] ORIG_RAX: 00000000000000a5 [ 43.729060] RAX: ffffffffffffffda RBX: 00007ffff37e8dc0 RCX: 0000000000447b6a [ 43.732229] RAX: ffffffffffffffda RBX: 00007ffff37e8dc0 RCX: 0000000000447b6a [ 43.735509] RDX: 00007ffff37e8dc0 RSI: 00000000200003c0 RDI: 00007ffff37e8de0 [ 43.740861] RDX: 00007ffff37e8dc0 RSI: 00000000200003c0 RDI: 00007ffff37e8de0 [ 43.746209] RBP: 0000000000000003 R08: 00007ffff37e8e20 R09: 000000000000000a [ 43.750158] RBP: 0000000000000003 R08: 00007ffff37e8e20 R09: 000000000000000a [ 43.750163] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffff37e8e20 [ 43.754115] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffff37e8e20 [ 43.761367] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 43.768623] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 43.826663] Code: 44 5f 8a e8 c9 cc db ff eb d8 e8 c2 cc db ff e9 6d ff ff ff e8 f8 7a b2 ff 4c 89 ea 48 89 ee 48 c7 c7 e0 9d b5 86 e8 41 37 a1 ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 47 a5 db ff 90 90 90 90 90 90 [ 43.845861] ---[ end trace 374c88f51a5a1d9f ]--- [ 43.851872] Kernel Offset: disabled [ 43.855591] Rebooting in 86400 seconds..