./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2505059887
<...>
Warning: Permanently added '10.128.0.195' (ED25519) to the list of known hosts.
execve("./syz-executor2505059887", ["./syz-executor2505059887"], 0x7ffe502ff7d0 /* 10 vars */) = 0
brk(NULL) = 0x555573baa000
brk(0x555573baad00) = 0x555573baad00
arch_prctl(ARCH_SET_FS, 0x555573baa380) = 0
set_tid_address(0x555573baa650) = 5816
set_robust_list(0x555573baa660, 24) = 0
rseq(0x555573baaca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2505059887", 4096) = 28
getrandom("\xd1\x2a\xbd\xff\xad\xfd\x80\x80", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555573baad00
brk(0x555573bcbd00) = 0x555573bcbd00
brk(0x555573bcc000) = 0x555573bcc000
mprotect(0x7f9027f66000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
write(1, "executing program\n", 18executing program
) = 18
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f901fa00000
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"..., 524288) = 524288
munmap(0x7f901fa00000, 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
mount("/dev/loop0", "./file2", "hfsplus", MS_NOSUID|MS_NOEXEC|MS_DIRSYNC|MS_REC|MS_I_VERSION, "") = 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)
[ 71.138601][ T5816] loop0: detected capacity change from 0 to 1024
openat(AT_FDCWD, "./file1", O_RDONLY|O_NOCTTY|O_TRUNC) = 4
symlink("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f\x2f\x66\x69\x6c\x65\x30", "\x2e\x02") = 0
rename("\x2e\x02", "./file1") = -1 ENOENT (No such file or directory)
[ 71.207660][ T5816] ------------[ cut here ]------------
[ 71.213189][ T5816] WARNING: CPU: 0 PID: 5816 at fs/inode.c:417 drop_nlink+0xc5/0x110
[ 71.221247][ T5816] Modules linked in:
[ 71.225214][ T5816] CPU: 0 UID: 0 PID: 5816 Comm: syz-executor250 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full)
[ 71.236032][ T5816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
[ 71.246288][ T5816] RIP: 0010:drop_nlink+0xc5/0x110
[ 71.251314][ T5816] Code: 70 07 00 00 be 08 00 00 00 e8 b7 84 e8 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 9c b2 88 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
[ 71.270963][ T5816] RSP: 0018:ffffc900041bfbd0 EFLAGS: 00010293
[ 71.277066][ T5816] RAX: ffffffff82370b44 RBX: ffff8880348aaa30 RCX: ffff88802fbf1e00
[ 71.285023][ T5816] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 71.293020][ T5816] RBP: 0000000000000000 R08: ffffc900041bf727 R09: 1ffff92000837ee4
[ 71.301061][ T5816] R10: dffffc0000000000 R11: fffff52000837ee5 R12: 1ffff1100691554f
[ 71.309091][ T5816] R13: ffff88802506bac8 R14: ffff8880348aaa78 R15: dffffc0000000000
[ 71.317114][ T5816] FS: 0000555573baa380(0000) GS:ffff888126102000(0000) knlGS:0000000000000000
[ 71.326112][ T5816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 71.332703][ T5816] CR2: 0000562a10481b08 CR3: 000000007caa0000 CR4: 00000000003526f0
[ 71.340715][ T5816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 71.348723][ T5816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 71.356741][ T5816] Call Trace:
[ 71.360037][ T5816]
[ 71.362988][ T5816] hfsplus_unlink+0x3e8/0x730
[ 71.367708][ T5816] ? __pfx_hfsplus_unlink+0x10/0x10
[ 71.373329][ T5816] ? __pfx_down_write+0x10/0x10
[ 71.378238][ T5816] ? bpf_lsm_inode_unlink+0x9/0x20
[ 71.383356][ T5816] vfs_unlink+0x391/0x650
[ 71.387730][ T5816] do_unlinkat+0x350/0x560
[ 71.392152][ T5816] ? __pfx_do_unlinkat+0x10/0x10
[ 71.397129][ T5816] ? strncpy_from_user+0x150/0x290
[ 71.402251][ T5816] ? getname_flags+0x1e5/0x540
[ 71.407042][ T5816] __x64_sys_unlinkat+0xd3/0xf0
[ 71.411899][ T5816] do_syscall_64+0xf6/0x210
[ 71.416418][ T5816] ? clear_bhb_loop+0x45/0xa0
[ 71.421159][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.427065][ T5816] RIP: 0033:0x7f9027ef26f9
[ 71.431497][ T5816] 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
[ 71.451138][ T5816] RSP: 002b:00007ffedc64cdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
[ 71.459604][ T5816] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f9027ef26f9
[ 71.467608][ T5816] RDX: 0000000000000000 RSI: 0000200000000380 RDI: 00000000ffffff9c
[ 71.475613][ T5816] RBP: 0000200000000000 R08: 0000000000000000 R09: 0000000000000000
[ 71.483590][ T5816] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 71.491598][ T5816] R13: 00007ffedc64cfa8 R14: 0000000000000001 R15: 0000000000000001
[ 71.499589][ T5816]
[ 71.502593][ T5816] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 71.509856][ T5816] CPU: 0 UID: 0 PID: 5816 Comm: syz-executor250 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full)
[ 71.520505][ T5816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
[ 71.530541][ T5816] Call Trace:
[ 71.533803][ T5816]
[ 71.536716][ T5816] dump_stack_lvl+0x99/0x250
[ 71.541295][ T5816] ? __asan_memcpy+0x40/0x70
[ 71.545865][ T5816] ? __pfx_dump_stack_lvl+0x10/0x10
[ 71.551045][ T5816] ? __pfx__printk+0x10/0x10
[ 71.555637][ T5816] panic+0x2db/0x790
[ 71.559524][ T5816] ? __pfx_panic+0x10/0x10
[ 71.563930][ T5816] __warn+0x31b/0x4b0
[ 71.567895][ T5816] ? drop_nlink+0xc5/0x110
[ 71.572299][ T5816] ? drop_nlink+0xc5/0x110
[ 71.576701][ T5816] report_bug+0x2be/0x4f0
[ 71.581017][ T5816] ? drop_nlink+0xc5/0x110
[ 71.585414][ T5816] ? drop_nlink+0xc5/0x110
[ 71.589813][ T5816] ? drop_nlink+0xc7/0x110
[ 71.594208][ T5816] handle_bug+0x84/0x160
[ 71.598442][ T5816] exc_invalid_op+0x1a/0x50
[ 71.602936][ T5816] asm_exc_invalid_op+0x1a/0x20
[ 71.607781][ T5816] RIP: 0010:drop_nlink+0xc5/0x110
[ 71.612795][ T5816] Code: 70 07 00 00 be 08 00 00 00 e8 b7 84 e8 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 9c b2 88 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
[ 71.632386][ T5816] RSP: 0018:ffffc900041bfbd0 EFLAGS: 00010293
[ 71.638444][ T5816] RAX: ffffffff82370b44 RBX: ffff8880348aaa30 RCX: ffff88802fbf1e00
[ 71.646401][ T5816] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 71.654355][ T5816] RBP: 0000000000000000 R08: ffffc900041bf727 R09: 1ffff92000837ee4
[ 71.662315][ T5816] R10: dffffc0000000000 R11: fffff52000837ee5 R12: 1ffff1100691554f
[ 71.670273][ T5816] R13: ffff88802506bac8 R14: ffff8880348aaa78 R15: dffffc0000000000
[ 71.678244][ T5816] ? drop_nlink+0xc4/0x110
[ 71.682662][ T5816] hfsplus_unlink+0x3e8/0x730
[ 71.687335][ T5816] ? __pfx_hfsplus_unlink+0x10/0x10
[ 71.692524][ T5816] ? __pfx_down_write+0x10/0x10
[ 71.697367][ T5816] ? bpf_lsm_inode_unlink+0x9/0x20
[ 71.702466][ T5816] vfs_unlink+0x391/0x650
[ 71.706794][ T5816] do_unlinkat+0x350/0x560
[ 71.711202][ T5816] ? __pfx_do_unlinkat+0x10/0x10
[ 71.716133][ T5816] ? strncpy_from_user+0x150/0x290
[ 71.721242][ T5816] ? getname_flags+0x1e5/0x540
[ 71.725993][ T5816] __x64_sys_unlinkat+0xd3/0xf0
[ 71.730834][ T5816] do_syscall_64+0xf6/0x210
[ 71.735324][ T5816] ? clear_bhb_loop+0x45/0xa0
[ 71.739992][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.745872][ T5816] RIP: 0033:0x7f9027ef26f9
[ 71.750273][ T5816] 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
[ 71.769952][ T5816] RSP: 002b:00007ffedc64cdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
[ 71.778354][ T5816] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f9027ef26f9
[ 71.786314][ T5816] RDX: 0000000000000000 RSI: 0000200000000380 RDI: 00000000ffffff9c
[ 71.794267][ T5816] RBP: 0000200000000000 R08: 0000000000000000 R09: 0000000000000000
[ 71.802227][ T5816] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 71.810183][ T5816] R13: 00007ffedc64cfa8 R14: 0000000000000001 R15: 0000000000000001
[ 71.818153][ T5816]
[ 71.821383][ T5816] Kernel Offset: disabled
[ 71.825698][ T5816] Rebooting in 86400 seconds..