./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor157321908
<...>
DUID 00:04:e6:bc:8e:bc:c3:7a:f3:fc:35:c5:a5:4f:9b:64:01:ce
forked to background, child pid 4812
[ 29.142635][ T4813] 8021q: adding VLAN 0 to HW filter on device bond0
[ 29.154265][ T4813] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.10.45' (ECDSA) to the list of known hosts.
execve("./syz-executor157321908", ["./syz-executor157321908"], 0x7ffef1c3cb10 /* 10 vars */) = 0
brk(NULL) = 0x555555ffe000
brk(0x555555ffec40) = 0x555555ffec40
arch_prctl(ARCH_SET_FS, 0x555555ffe300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor157321908", 4096) = 27
brk(0x55555601fc40) = 0x55555601fc40
brk(0x555556020000) = 0x555556020000
mprotect(0x7f5108113000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
fsopen("cgroup2", 0) = 3
fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0
fsmount(3, 0, 0) = 4
openat(4, "cpu.pressure", O_RDWR) = 5
syzkaller login: [ 53.128621][ T5234] ------------[ cut here ]------------
[ 53.134419][ T5234] WARNING: CPU: 1 PID: 5234 at fs/kernfs/dir.c:36 kernfs_active+0x119/0x150
[ 53.143334][ T5234] Modules linked in:
[ 53.147247][ T5234] CPU: 1 PID: 5234 Comm: syz-executor157 Not tainted 6.1.0-rc3-next-20221102-syzkaller #0
[ 53.157272][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
[ 53.167487][ T5234] RIP: 0010:kernfs_active+0x119/0x150
[ 53.172945][ T5234] Code: e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1f 8b 5b 04 31 ff 89 de e8 06 9a 7e ff 89 d8 5b f7 d0 5d c1 e8 1f c3 e8 27 9d 7e ff <0f> 0b eb a5 48 89 ef e8 eb 2a cb ff eb d7 48 c7 c7 2c 1a e3 8d e8
[ 53.192669][ T5234] RSP: 0018:ffffc90003cdfbc0 EFLAGS: 00010293
[ 53.198758][ T5234] RAX: 0000000000000000 RBX: ffff8881400f31d0 RCX: 0000000000000000
[ 53.206815][ T5234] RDX: ffff88802707d7c0 RSI: ffffffff81fe4429 RDI: 0000000000000005
[ 53.214870][ T5234] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
[ 53.222896][ T5234] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881400f31d0
[ 53.231055][ T5234] R13: ffff88802a48e000 R14: 0000000000000000 R15: 0000000000000001
[ 53.239033][ T5234] FS: 0000555555ffe300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 53.248041][ T5234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 53.254697][ T5234] CR2: 00000000005f6b40 CR3: 000000007edff000 CR4: 00000000003506e0
[ 53.262743][ T5234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 53.270768][ T5234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 53.278732][ T5234] Call Trace:
[ 53.282058][ T5234]
[ 53.285004][ T5234] kernfs_find_and_get_node_by_id+0x84/0x170
[ 53.291063][ T5234] __kernfs_fh_to_dentry+0xdb/0x270
[ 53.296286][ T5234] exportfs_decode_fh_raw+0x127/0x7b0
[ 53.301706][ T5234] ? vfs_dentry_acceptable+0x0/0x10
[ 53.306928][ T5234] ? kernfs_fh_to_dentry+0x0/0x40
[ 53.312029][ T5234] ? exportfs_decode_fh_raw+0x0/0x7b0
[ 53.317445][ T5234] ? find_held_lock+0x2d/0x110
[ 53.322340][ T5234] ? __might_fault+0xd1/0x170
[ 53.327056][ T5234] ? lock_release+0x0/0x810
[ 53.331652][ T5234] ? vfs_dentry_acceptable+0x0/0x10
[ 53.336875][ T5234] exportfs_decode_fh+0x38/0x90
[ 53.342011][ T5234] do_handle_open+0x2b6/0x8b0
[ 53.346719][ T5234] ? do_handle_open+0x0/0x8b0
[ 53.351510][ T5234] ? _raw_spin_unlock_irq+0x1f/0x40
[ 53.356757][ T5234] ? lockdep_hardirqs_on+0x79/0x100
[ 53.362080][ T5234] ? _raw_spin_unlock_irq+0x2a/0x40
[ 53.367306][ T5234] ? ptrace_notify+0xfa/0x140
[ 53.372093][ T5234] do_syscall_64+0x35/0xb0
[ 53.376531][ T5234] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 53.382501][ T5234] RIP: 0033:0x7f51080a6ba9
[ 53.387027][ T5234] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 53.406741][ T5234] RSP: 002b:00007ffcd1c41c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
[ 53.415207][ T5234] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f51080a6ba9
[ 53.423258][ T5234] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005
[ 53.431312][ T5234] RBP: 00007f510806ad50 R08: 0000000000000000 R09: 0000000000000000
[ 53.439277][ T5234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f510806ade0
[ 53.447301][ T5234] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 53.455406][ T5234]
[ 53.458607][ T5234] Kernel panic - not syncing: panic_on_warn set ...
[ 53.465189][ T5234] CPU: 1 PID: 5234 Comm: syz-executor157 Not tainted 6.1.0-rc3-next-20221102-syzkaller #0
[ 53.475093][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
[ 53.485143][ T5234] Call Trace:
[ 53.488516][ T5234]
[ 53.491446][ T5234] dump_stack_lvl+0xcd/0x134
[ 53.496129][ T5234] panic+0x2c8/0x622
[ 53.500022][ T5234] ? panic+0x0/0x622
[ 53.503962][ T5234] ? __warn.cold+0x24b/0x350
[ 53.508554][ T5234] ? kernfs_active+0x119/0x150
[ 53.513341][ T5234] __warn.cold+0x25c/0x350
[ 53.517793][ T5234] ? kernfs_active+0x119/0x150
[ 53.522566][ T5234] report_bug+0x1bc/0x210
[ 53.526908][ T5234] handle_bug+0x3c/0x70
[ 53.531077][ T5234] exc_invalid_op+0x14/0x40
[ 53.535602][ T5234] asm_exc_int3-0xa/0x40
[ 53.539846][ T5234] RIP: 0010:kernfs_active+0x119/0x150
[ 53.545227][ T5234] Code: e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1f 8b 5b 04 31 ff 89 de e8 06 9a 7e ff 89 d8 5b f7 d0 5d c1 e8 1f c3 e8 27 9d 7e ff <0f> 0b eb a5 48 89 ef e8 eb 2a cb ff eb d7 48 c7 c7 2c 1a e3 8d e8
[ 53.564846][ T5234] RSP: 0018:ffffc90003cdfbc0 EFLAGS: 00010293
[ 53.570916][ T5234] RAX: 0000000000000000 RBX: ffff8881400f31d0 RCX: 0000000000000000
[ 53.578887][ T5234] RDX: ffff88802707d7c0 RSI: ffffffff81fe4429 RDI: 0000000000000005
[ 53.586860][ T5234] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
[ 53.594829][ T5234] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881400f31d0
[ 53.602798][ T5234] R13: ffff88802a48e000 R14: 0000000000000000 R15: 0000000000000001
[ 53.610780][ T5234] ? kernfs_active+0x119/0x150
[ 53.615554][ T5234] kernfs_find_and_get_node_by_id+0x84/0x170
[ 53.621543][ T5234] __kernfs_fh_to_dentry+0xdb/0x270
[ 53.626758][ T5234] exportfs_decode_fh_raw+0x127/0x7b0
[ 53.632234][ T5234] ? vfs_dentry_acceptable+0x0/0x10
[ 53.637441][ T5234] ? kernfs_fh_to_dentry+0x0/0x40
[ 53.642481][ T5234] ? exportfs_decode_fh_raw+0x0/0x7b0
[ 53.647877][ T5234] ? find_held_lock+0x2d/0x110
[ 53.652649][ T5234] ? __might_fault+0xd1/0x170
[ 53.657333][ T5234] ? lock_release+0x0/0x810
[ 53.661848][ T5234] ? vfs_dentry_acceptable+0x0/0x10
[ 53.667063][ T5234] exportfs_decode_fh+0x38/0x90
[ 53.672017][ T5234] do_handle_open+0x2b6/0x8b0
[ 53.676707][ T5234] ? do_handle_open+0x0/0x8b0
[ 53.681568][ T5234] ? _raw_spin_unlock_irq+0x1f/0x40
[ 53.686787][ T5234] ? lockdep_hardirqs_on+0x79/0x100
[ 53.691989][ T5234] ? _raw_spin_unlock_irq+0x2a/0x40
[ 53.697198][ T5234] ? ptrace_notify+0xfa/0x140
[ 53.701889][ T5234] do_syscall_64+0x35/0xb0
[ 53.706346][ T5234] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 53.712253][ T5234] RIP: 0033:0x7f51080a6ba9
[ 53.716668][ T5234] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 53.736279][ T5234] RSP: 002b:00007ffcd1c41c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
[ 53.744702][ T5234] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f51080a6ba9
[ 53.752673][ T5234] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005
[ 53.760646][ T5234] RBP: 00007f510806ad50 R08: 0000000000000000 R09: 0000000000000000
[ 53.768618][ T5234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f510806ade0
[ 53.776592][ T5234] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 53.784605][ T5234]
[ 53.787778][ T5234] Kernel Offset: disabled
[ 53.792202][ T5234] Rebooting in 86400 seconds..