syzkaller
syzkaller login: [ 22.916472][ T908] cgroup: Unknown subsys name 'net'
[ 22.917421][ T908] cgroup: Unknown subsys name 'net_prio'
[ 22.918459][ T908] cgroup: Unknown subsys name 'devices'
[ 22.919388][ T908] cgroup: Unknown subsys name 'blkio'
[ 23.021461][ T908] cgroup: Unknown subsys name 'hugetlb'
[ 23.027421][ T908] cgroup: Unknown subsys name 'rlimit'
Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts.
2023/09/28 08:35:40 ignoring optional flag "sandboxArg"="0"
2023/09/28 08:35:40 parsed 1 programs
2023/09/28 08:35:40 executed programs: 0
[ 42.213063][ T1855] ------------[ cut here ]------------
[ 42.218604][ T1855] WARNING: CPU: 1 PID: 1855 at fs/inode.c:364 inc_nlink+0x2d/0x40
[ 42.226406][ T1855] Modules linked in:
[ 42.230266][ T1855] CPU: 1 PID: 1855 Comm: syz-executor.0 Not tainted 5.15.133-syzkaller #0
[ 42.238763][ T1855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
[ 42.248975][ T1855] RIP: 0010:inc_nlink+0x2d/0x40
[ 42.254240][ T1855] Code: 85 c0 74 07 83 c0 01 89 47 48 c3 f6 87 d9 00 00 00 04 74 16 48 8b 47 28 f0 48 ff 88 b8 07 00 00 8b 47 48 83 c0 01 89 47 48 c3 <0f> 0b eb e6 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 01 00
[ 42.274123][ T1855] RSP: 0018:ffffc90001a27db0 EFLAGS: 00010246
[ 42.280431][ T1855] RAX: 0000000000000000 RBX: ffff88817755ee80 RCX: 00000000618bfb10
[ 42.288580][ T1855] RDX: ffff88810a299400 RSI: 00000000610a4889 RDI: ffff8881764b0000
[ 42.296735][ T1855] RBP: ffffc90001a27e58 R08: 0000000000000000 R09: 0000000000000000
[ 42.304962][ T1855] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881764b0000
[ 42.313092][ T1855] R13: 0000000000000000 R14: ffff8881764b05c8 R15: ffff8881764b00e0
[ 42.321039][ T1855] FS: 00007faad2f7f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
[ 42.329948][ T1855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 42.336517][ T1855] CR2: 00007faad2f5dfa8 CR3: 0000000174a36000 CR4: 00000000003506e0
[ 42.344651][ T1855] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 42.353225][ T1855] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 42.361445][ T1855] Call Trace:
[ 42.364792][ T1855]
[ 42.367693][ T1855] ? __warn+0x7b/0xf0
[ 42.371946][ T1855] ? inc_nlink+0x2d/0x40
[ 42.376156][ T1855] ? report_bug+0x9a/0xc0
[ 42.380471][ T1855] ? handle_bug+0x3c/0x60
[ 42.384789][ T1855] ? exc_invalid_op+0x14/0x70
[ 42.389449][ T1855] ? asm_exc_invalid_op+0x16/0x20
[ 42.394626][ T1855] ? inc_nlink+0x2d/0x40
[ 42.398850][ T1855] fuse_link+0x102/0x1a0
[ 42.403164][ T1855] vfs_link+0x206/0x320
[ 42.407294][ T1855] do_linkat+0x220/0x2f0
[ 42.411874][ T1855] __x64_sys_link+0x3b/0x50
[ 42.416423][ T1855] do_syscall_64+0x35/0x80
[ 42.421009][ T1855] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 42.426960][ T1855] RIP: 0033:0x7faad33fc959
[ 42.431543][ T1855] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
[ 42.451348][ T1855] RSP: 002b:00007faad2f7f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
[ 42.459829][ T1855] RAX: ffffffffffffffda RBX: 00007faad351bf80 RCX: 00007faad33fc959
[ 42.467967][ T1855] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040
[ 42.476189][ T1855] RBP: 00007faad3458c88 R08: 0000000000000000 R09: 0000000000000000
[ 42.484160][ T1855] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 42.492232][ T1855] R13: 0000000000000006 R14: 00007faad351bf80 R15: 00007ffe507e5818
[ 42.500260][ T1855]
[ 42.503275][ T1855] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 42.510610][ T1855] CPU: 1 PID: 1855 Comm: syz-executor.0 Not tainted 5.15.133-syzkaller #0
[ 42.519207][ T1855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
[ 42.529239][ T1855] Call Trace:
[ 42.532490][ T1855]
[ 42.535389][ T1855] dump_stack_lvl+0x41/0x5e
[ 42.539950][ T1855] panic+0xfb/0x2ae
[ 42.543731][ T1855] check_panic_on_warn.cold+0xf/0x1e
[ 42.549066][ T1855] __warn+0x87/0xf0
[ 42.552839][ T1855] ? inc_nlink+0x2d/0x40
[ 42.557047][ T1855] report_bug+0x9a/0xc0
[ 42.561193][ T1855] handle_bug+0x3c/0x60
[ 42.565335][ T1855] exc_invalid_op+0x14/0x70
[ 42.569809][ T1855] asm_exc_invalid_op+0x16/0x20
[ 42.574627][ T1855] RIP: 0010:inc_nlink+0x2d/0x40
[ 42.579630][ T1855] Code: 85 c0 74 07 83 c0 01 89 47 48 c3 f6 87 d9 00 00 00 04 74 16 48 8b 47 28 f0 48 ff 88 b8 07 00 00 8b 47 48 83 c0 01 89 47 48 c3 <0f> 0b eb e6 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 01 00
[ 42.599199][ T1855] RSP: 0018:ffffc90001a27db0 EFLAGS: 00010246
[ 42.605234][ T1855] RAX: 0000000000000000 RBX: ffff88817755ee80 RCX: 00000000618bfb10
[ 42.613351][ T1855] RDX: ffff88810a299400 RSI: 00000000610a4889 RDI: ffff8881764b0000
[ 42.621413][ T1855] RBP: ffffc90001a27e58 R08: 0000000000000000 R09: 0000000000000000
[ 42.629536][ T1855] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881764b0000
[ 42.637565][ T1855] R13: 0000000000000000 R14: ffff8881764b05c8 R15: ffff8881764b00e0
[ 42.645504][ T1855] fuse_link+0x102/0x1a0
[ 42.649750][ T1855] vfs_link+0x206/0x320
[ 42.654055][ T1855] do_linkat+0x220/0x2f0
[ 42.658357][ T1855] __x64_sys_link+0x3b/0x50
[ 42.662915][ T1855] do_syscall_64+0x35/0x80
[ 42.667299][ T1855] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 42.673208][ T1855] RIP: 0033:0x7faad33fc959
[ 42.677599][ T1855] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
[ 42.697920][ T1855] RSP: 002b:00007faad2f7f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
[ 42.706476][ T1855] RAX: ffffffffffffffda RBX: 00007faad351bf80 RCX: 00007faad33fc959
[ 42.714600][ T1855] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040
[ 42.722539][ T1855] RBP: 00007faad3458c88 R08: 0000000000000000 R09: 0000000000000000
[ 42.730480][ T1855] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 42.738447][ T1855] R13: 0000000000000006 R14: 00007faad351bf80 R15: 00007ffe507e5818
[ 42.746388][ T1855]
[ 42.749598][ T1855] Kernel Offset: disabled
[ 42.753891][ T1855] Rebooting in 86400 seconds..