./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1079991905
<...>
Warning: Permanently added '10.128.0.243' (ED25519) to the list of known hosts.
execve("./syz-executor1079991905", ["./syz-executor1079991905"], 0x7ffce5137730 /* 10 vars */) = 0
brk(NULL) = 0x555565827000
brk(0x555565827d00) = 0x555565827d00
arch_prctl(ARCH_SET_FS, 0x555565827380) = 0
set_tid_address(0x555565827650) = 5820
set_robust_list(0x555565827660, 24) = 0
rseq(0x555565827ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1079991905", 4096) = 28
getrandom("\xd1\x21\x8b\xb1\xb7\x7b\x0a\xb7", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555565827d00
brk(0x555565848d00) = 0x555565848d00
brk(0x555565849000) = 0x555565849000
mprotect(0x7f79b37a2000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
executing program
write(1, "executing program\n", 18) = 18
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f79ab200000
write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 67108864) = 67108864
munmap(0x7f79ab200000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file2", 0777) = 0
[ 64.495606][ T5820] loop0: detected capacity change from 0 to 131072
[ 64.544177][ T5820] F2FS-fs (loop0): invalid crc value
[ 64.558074][ T5820] F2FS-fs (loop0): Found nat_bits in checkpoint
mount("/dev/loop0", "./file2", "f2fs", MS_DIRSYNC|MS_RELATIME, "") = 0
openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3
chdir("./file2") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 64.597968][ T5820] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
[ 64.662352][ T5820] ------------[ cut here ]------------
[ 64.668057][ T5820] WARNING: CPU: 0 PID: 5820 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 64.676104][ T5820] Modules linked in:
[ 64.680103][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor107 Not tainted 6.14.0-rc2-syzkaller #0
[ 64.689710][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 64.699976][ T5820] RIP: 0010:drop_nlink+0xc4/0x110
[ 64.705038][ T5820] Code: bb 70 07 00 00 be 08 00 00 00 e8 e7 12 e7 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 4d fe 82 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 64.724737][ T5820] RSP: 0018:ffffc90003ee7bb8 EFLAGS: 00010293
[ 64.730870][ T5820] RAX: ffffffff823c50f3 RBX: 1ffff1100e00923b RCX: ffff88807f99bc00
[ 64.738924][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 64.746937][ T5820] RBP: 0000000000000000 R08: ffffffff823c5073 R09: 1ffffffff203466e
[ 64.754970][ T5820] R10: dffffc0000000000 R11: fffffbfff203466f R12: ffff8880700491d8
[ 64.763047][ T5820] R13: dffffc0000000000 R14: ffff888070049190 R15: dffffc0000000000
[ 64.771123][ T5820] FS: 0000555565827380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 64.780118][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 64.786694][ T5820] CR2: 000000000066c7e0 CR3: 0000000034eaa000 CR4: 00000000003526f0
[ 64.794734][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 64.802759][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 64.810820][ T5820] Call Trace:
[ 64.814119][ T5820]
[ 64.817098][ T5820] ? __warn+0x165/0x4d0
[ 64.821296][ T5820] ? drop_nlink+0xc4/0x110
[ 64.825749][ T5820] ? report_bug+0x2b3/0x500
[ 64.830367][ T5820] ? drop_nlink+0xc4/0x110
[ 64.834805][ T5820] ? handle_bug+0x60/0x90
[ 64.839190][ T5820] ? exc_invalid_op+0x1a/0x50
[ 64.843887][ T5820] ? asm_exc_invalid_op+0x1a/0x20
[ 64.848988][ T5820] ? drop_nlink+0x43/0x110
[ 64.853436][ T5820] ? drop_nlink+0xc3/0x110
[ 64.857920][ T5820] ? drop_nlink+0xc4/0x110
[ 64.862369][ T5820] ? drop_nlink+0xc3/0x110
[ 64.866783][ T5820] f2fs_drop_nlink+0xd6/0x380
[ 64.871530][ T5820] f2fs_unlink+0x47f/0x960
[ 64.875989][ T5820] ? __pfx_f2fs_unlink+0x10/0x10
[ 64.881026][ T5820] ? bpf_lsm_inode_unlink+0x9/0x10
[ 64.886167][ T5820] ? security_inode_unlink+0xd9/0x340
[ 64.891599][ T5820] vfs_unlink+0x365/0x650
[ 64.895996][ T5820] do_unlinkat+0x4ae/0x830
[ 64.900573][ T5820] ? __pfx_do_unlinkat+0x10/0x10
[ 64.905546][ T5820] ? __check_object_size+0x47a/0x730
[ 64.910943][ T5820] ? __might_fault+0xc6/0x120
[ 64.915663][ T5820] ? strncpy_from_user+0x146/0x270
[ 64.921146][ T5820] ? getname_flags+0x1e3/0x540
[ 64.925955][ T5820] __x64_sys_unlink+0x47/0x50
[ 64.930701][ T5820] do_syscall_64+0xf3/0x230
[ 64.935228][ T5820] ? clear_bhb_loop+0x35/0x90
[ 64.939997][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 64.945916][ T5820] RIP: 0033:0x7f79b371f639
[ 64.950405][ T5820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
[ 64.970098][ T5820] RSP: 002b:00007ffee1c13558 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[ 64.978604][ T5820] RAX: ffffffffffffffda RBX: 00007ffee1c13738 RCX: 00007f79b371f639
[ 64.986626][ T5820] RDX: 00007f79b371e6d1 RSI: 0000000000000000 RDI: 0000400000000100
[ 64.994674][ T5820] RBP: 00007f79b37a2610 R08: 00000000000105b7 R09: 0000000000000000
[ 65.002796][ T5820] R10: 00007ffee1c13420 R11: 0000000000000246 R12: 0000000000000001
[ 65.010903][ T5820] R13: 00007ffee1c13728 R14: 0000000000000001 R15: 0000000000000001
[ 65.018933][ T5820]
[ 65.021954][ T5820] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 65.029220][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor107 Not tainted 6.14.0-rc2-syzkaller #0
[ 65.038596][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 65.048649][ T5820] Call Trace:
[ 65.051913][ T5820]
[ 65.054825][ T5820] dump_stack_lvl+0x241/0x360
[ 65.059498][ T5820] ? __pfx_dump_stack_lvl+0x10/0x10
[ 65.064689][ T5820] ? __pfx__printk+0x10/0x10
[ 65.069362][ T5820] ? vscnprintf+0x5d/0x90
[ 65.073696][ T5820] panic+0x349/0x880
[ 65.077588][ T5820] ? __warn+0x174/0x4d0
[ 65.081750][ T5820] ? __pfx_panic+0x10/0x10
[ 65.086215][ T5820] __warn+0x344/0x4d0
[ 65.090195][ T5820] ? drop_nlink+0xc4/0x110
[ 65.094609][ T5820] report_bug+0x2b3/0x500
[ 65.098931][ T5820] ? drop_nlink+0xc4/0x110
[ 65.103341][ T5820] handle_bug+0x60/0x90
[ 65.107509][ T5820] exc_invalid_op+0x1a/0x50
[ 65.112005][ T5820] asm_exc_invalid_op+0x1a/0x20
[ 65.116854][ T5820] RIP: 0010:drop_nlink+0xc4/0x110
[ 65.121954][ T5820] Code: bb 70 07 00 00 be 08 00 00 00 e8 e7 12 e7 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 4d fe 82 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 65.141549][ T5820] RSP: 0018:ffffc90003ee7bb8 EFLAGS: 00010293
[ 65.147628][ T5820] RAX: ffffffff823c50f3 RBX: 1ffff1100e00923b RCX: ffff88807f99bc00
[ 65.155625][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 65.163610][ T5820] RBP: 0000000000000000 R08: ffffffff823c5073 R09: 1ffffffff203466e
[ 65.171578][ T5820] R10: dffffc0000000000 R11: fffffbfff203466f R12: ffff8880700491d8
[ 65.179544][ T5820] R13: dffffc0000000000 R14: ffff888070049190 R15: dffffc0000000000
[ 65.187515][ T5820] ? drop_nlink+0x43/0x110
[ 65.191948][ T5820] ? drop_nlink+0xc3/0x110
[ 65.196407][ T5820] ? drop_nlink+0xc3/0x110
[ 65.200832][ T5820] f2fs_drop_nlink+0xd6/0x380
[ 65.205515][ T5820] f2fs_unlink+0x47f/0x960
[ 65.209937][ T5820] ? __pfx_f2fs_unlink+0x10/0x10
[ 65.214876][ T5820] ? bpf_lsm_inode_unlink+0x9/0x10
[ 65.219984][ T5820] ? security_inode_unlink+0xd9/0x340
[ 65.225354][ T5820] vfs_unlink+0x365/0x650
[ 65.229779][ T5820] do_unlinkat+0x4ae/0x830
[ 65.234201][ T5820] ? __pfx_do_unlinkat+0x10/0x10
[ 65.239128][ T5820] ? __check_object_size+0x47a/0x730
[ 65.244404][ T5820] ? __might_fault+0xc6/0x120
[ 65.249076][ T5820] ? strncpy_from_user+0x146/0x270
[ 65.254185][ T5820] ? getname_flags+0x1e3/0x540
[ 65.258949][ T5820] __x64_sys_unlink+0x47/0x50
[ 65.263618][ T5820] do_syscall_64+0xf3/0x230
[ 65.268120][ T5820] ? clear_bhb_loop+0x35/0x90
[ 65.272793][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 65.278681][ T5820] RIP: 0033:0x7f79b371f639
[ 65.283089][ T5820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
[ 65.302693][ T5820] RSP: 002b:00007ffee1c13558 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[ 65.311107][ T5820] RAX: ffffffffffffffda RBX: 00007ffee1c13738 RCX: 00007f79b371f639
[ 65.319070][ T5820] RDX: 00007f79b371e6d1 RSI: 0000000000000000 RDI: 0000400000000100
[ 65.327053][ T5820] RBP: 00007f79b37a2610 R08: 00000000000105b7 R09: 0000000000000000
[ 65.335215][ T5820] R10: 00007ffee1c13420 R11: 0000000000000246 R12: 0000000000000001
[ 65.343195][ T5820] R13: 00007ffee1c13728 R14: 0000000000000001 R15: 0000000000000001
[ 65.351174][ T5820]
[ 65.354458][ T5820] Kernel Offset: disabled
[ 65.358900][ T5820] Rebooting in 86400 seconds..