./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4018739823

<...>
Warning: Permanently added '10.128.0.41' (ED25519) to the list of known hosts.
execve("./syz-executor4018739823", ["./syz-executor4018739823"], 0x7fffac784fd0 /* 10 vars */) = 0
brk(NULL)                               = 0x555583483000
brk(0x555583483d00)                     = 0x555583483d00
arch_prctl(ARCH_SET_FS, 0x555583483380) = 0
set_tid_address(0x555583483650)         = 5213
set_robust_list(0x555583483660, 24)     = 0
rseq(0x555583483ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4018739823", 4096) = 28
getrandom("\xc6\xce\xe3\xeb\xd2\xfd\xd7\x79", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555583483d00
brk(0x5555834a4d00)                     = 0x5555834a4d00
brk(0x5555834a5000)                     = 0x5555834a5000
mprotect(0x7f80d07e4000, 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
mkdir("./syzkaller.UdA4oH", 0700)       = 0
chmod("./syzkaller.UdA4oH", 0777)       = 0
chdir("./syzkaller.UdA4oH")             = 0
mkdir("./0", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached
 <unfinished ...>
[pid  5214] set_robust_list(0x555583483660, 24 <unfinished ...>
[pid  5213] <... clone resumed>, child_tidptr=0x555583483650) = 5214
[pid  5214] <... set_robust_list resumed>) = 0
[pid  5214] chdir("./0")                = 0
[pid  5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5214] setpgid(0, 0)               = 0
[pid  5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5214] write(3, "1000", 4)         = 4
[pid  5214] close(3)                    = 0
[pid  5214] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5214] write(1, "executing program\n", 18) = 18
[pid  5214] memfd_create("syzkaller", 0) = 3
[pid  5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f80c8200000
[pid  5214] 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"..., 24449) = 24449
[pid  5214] munmap(0x7f80c8200000, 138412032) = 0
[pid  5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5214] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5214] close(3)                    = 0
[pid  5214] close(4)                    = 0
[   68.060006][ T5214] loop0: detected capacity change from 0 to 47
[   68.081819][ T5214] =======================================================
[   68.081819][ T5214] WARNING: The mand mount option has been deprecated and
[   68.081819][ T5214]          and is ignored by this kernel. Remove the mand
[   68.081819][ T5214]          option from the mount to silence this warning.
[pid  5214] mkdir("./file1", 0777)      = 0
[pid  5214] mount("/dev/loop0", "./file1", "minix", MS_NOSUID|MS_MANDLOCK, "") = 0
[pid  5214] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5214] chdir("./file1")            = 0
[pid  5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5214] openat(AT_FDCWD, "blkio.bfq.io_queued_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid  5214] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT, 000) = 5
[pid  5214] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid  5214] exit_group(0)               = ?
[pid  5214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x5555834846f0 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs")                  = 0
umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0755, st_size=288, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=288, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x55558348c730 /* 9 entries */, 32768) = 280
umount2("./0/file1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1/file0", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file1/file0")               = 0
umount2("./0/file1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   68.081819][ T5214] =======================================================
newfstatat(AT_FDCWD, "./0/file1/file1", {st_mode=012, st_size=10, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file1/file1")               = 0
umount2("./0/file1/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1/file2", {st_mode=S_IFREG|0755, st_size=9000, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file1/file2")               = 0
umount2("\x2e\x2f\x30\x2f\x66\x69\x6c\x65\x31\x2f\x66\x69\x03\x1f", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "\x2e\x2f\x30\x2f\x66\x69\x6c\x65\x31\x2f\x66\x69\x03\x1f", {st_mode=S_IFREG|0755, st_size=9000, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("\x2e\x2f\x30\x2f\x66\x69\x6c\x65\x31\x2f\x66\x69\x03\x1f") = 0
umount2("./0/file1/file.cold", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1/file.cold", {st_mode=S_IFREG|0755, st_size=100, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file1/file.cold")           = 0
umount2("./0/file1/blkio.bfq.io_queued_recursive", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1/blkio.bfq.io_queued_recursive", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file1/blkio.bfq.io_queued_recursive") = 0
umount2("./0/file1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./0/file1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1/bus", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   68.182305][ T5213] minix_free_block (loop0:20): bit already cleared
[   68.189342][ T5213] minix_free_block (loop0:21): bit already cleared
[   68.195950][ T5213] minix_free_block (loop0:19): bit already cleared
[   68.206523][ T5213] minix_free_block (loop0:22): bit already cleared
[   68.222411][ T5213] ------------[ cut here ]------------
[   68.228109][ T5213] WARNING: CPU: 0 PID: 5213 at fs/inode.c:334 drop_nlink+0xc4/0x110
[   68.236258][ T5213] Modules linked in:
[   68.240318][ T5213] CPU: 0 UID: 0 PID: 5213 Comm: syz-executor401 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
[   68.251408][ T5213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
[   68.261640][ T5213] RIP: 0010:drop_nlink+0xc4/0x110
[   68.266714][ T5213] Code: bb 70 07 00 00 be 08 00 00 00 e8 67 a3 e6 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 8d 3f 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
[   68.286461][ T5213] RSP: 0018:ffffc9000368fc30 EFLAGS: 00010293
[   68.292710][ T5213] RAX: ffffffff82127f43 RBX: 1ffff1100ef77163 RCX: ffff88802d829e00
[   68.300792][ T5213] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   68.308893][ T5213] RBP: 0000000000000000 R08: ffffffff82127ec3 R09: 1ffffd40003b8ca6
[   68.316987][ T5213] R10: dffffc0000000000 R11: fffff940003b8ca7 R12: ffff888077bb8b18
[   68.325039][ T5213] R13: 0000000066ecec3c R14: ffff888077bb8ad0 R15: dffffc0000000000
[   68.333083][ T5213] FS:  0000555583483380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
[   68.342106][ T5213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.348816][ T5213] CR2: 0000555583494738 CR3: 0000000074976000 CR4: 00000000003506f0
[   68.356850][ T5213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   68.365104][ T5213] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   68.373168][ T5213] Call Trace:
[   68.376515][ T5213]  <TASK>
[   68.379529][ T5213]  ? __warn+0x168/0x4e0
[   68.383741][ T5213]  ? drop_nlink+0xc4/0x110
[   68.388195][ T5213]  ? report_bug+0x2b3/0x500
[   68.392793][ T5213]  ? drop_nlink+0xc4/0x110
[   68.397439][ T5213]  ? handle_bug+0x60/0x90
[   68.401863][ T5213]  ? exc_invalid_op+0x1a/0x50
[   68.406619][ T5213]  ? asm_exc_invalid_op+0x1a/0x20
[   68.411739][ T5213]  ? drop_nlink+0x43/0x110
[   68.416218][ T5213]  ? drop_nlink+0xc3/0x110
[   68.420746][ T5213]  ? drop_nlink+0xc4/0x110
[   68.425247][ T5213]  minix_unlink+0x25b/0x320
[   68.429890][ T5213]  ? __pfx_minix_unlink+0x10/0x10
[   68.434967][ T5213]  ? bpf_lsm_inode_unlink+0x9/0x10
[   68.440151][ T5213]  ? security_inode_unlink+0xd9/0x340
[   68.445579][ T5213]  vfs_unlink+0x365/0x650
[   68.450048][ T5213]  do_unlinkat+0x4ae/0x830
[   68.454523][ T5213]  ? __pfx_do_unlinkat+0x10/0x10
[   68.459605][ T5213]  ? __check_object_size+0x49c/0x900
[   68.465011][ T5213]  ? getname_flags+0x1e3/0x540
[   68.469866][ T5213]  __x64_sys_unlink+0x47/0x50
[   68.474603][ T5213]  do_syscall_64+0xf3/0x230
[   68.479193][ T5213]  ? clear_bhb_loop+0x35/0x90
[   68.483923][ T5213]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   68.489962][ T5213] RIP: 0033:0x7f80d076fb97
[   68.494438][ T5213] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   68.514233][ T5213] RSP: 002b:00007fff00d34fc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[   68.522762][ T5213] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80d076fb97
[   68.530905][ T5213] RDX: 00007fff00d34ff0 RSI: 00007fff00d35080 RDI: 00007fff00d35080
[   68.539129][ T5213] RBP: 00007fff00d35080 R08: 0000000000000000 R09: 0000000000000000
[   68.547125][ T5213] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff00d36170
[   68.555179][ T5213] R13: 000055558348c700 R14: 0000000000000001 R15: 431bde82d7b634db
[   68.563283][ T5213]  </TASK>
[   68.566333][ T5213] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   68.573623][ T5213] CPU: 0 UID: 0 PID: 5213 Comm: syz-executor401 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
[   68.584413][ T5213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
[   68.594495][ T5213] Call Trace:
[   68.597811][ T5213]  <TASK>
[   68.600748][ T5213]  dump_stack_lvl+0x241/0x360
[   68.605469][ T5213]  ? __pfx_dump_stack_lvl+0x10/0x10
[   68.610695][ T5213]  ? __pfx__printk+0x10/0x10
[   68.615319][ T5213]  ? _printk+0xd5/0x120
[   68.619500][ T5213]  ? __init_begin+0x41000/0x41000
[   68.624564][ T5213]  ? vscnprintf+0x5d/0x90
[   68.628914][ T5213]  panic+0x349/0x880
[   68.632834][ T5213]  ? __warn+0x177/0x4e0
[   68.637008][ T5213]  ? __pfx_panic+0x10/0x10
[   68.641443][ T5213]  ? show_trace_log_lvl+0x3b2/0x410
[   68.646682][ T5213]  __warn+0x34b/0x4e0
[   68.650683][ T5213]  ? drop_nlink+0xc4/0x110
[   68.655129][ T5213]  report_bug+0x2b3/0x500
[   68.659480][ T5213]  ? drop_nlink+0xc4/0x110
[   68.663975][ T5213]  handle_bug+0x60/0x90
[   68.668261][ T5213]  exc_invalid_op+0x1a/0x50
[   68.672817][ T5213]  asm_exc_invalid_op+0x1a/0x20
[   68.677720][ T5213] RIP: 0010:drop_nlink+0xc4/0x110
[   68.682799][ T5213] Code: bb 70 07 00 00 be 08 00 00 00 e8 67 a3 e6 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 8d 3f 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
[   68.702515][ T5213] RSP: 0018:ffffc9000368fc30 EFLAGS: 00010293
[   68.708958][ T5213] RAX: ffffffff82127f43 RBX: 1ffff1100ef77163 RCX: ffff88802d829e00
[   68.716944][ T5213] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   68.724947][ T5213] RBP: 0000000000000000 R08: ffffffff82127ec3 R09: 1ffffd40003b8ca6
[   68.732938][ T5213] R10: dffffc0000000000 R11: fffff940003b8ca7 R12: ffff888077bb8b18
[   68.740947][ T5213] R13: 0000000066ecec3c R14: ffff888077bb8ad0 R15: dffffc0000000000
[   68.749025][ T5213]  ? drop_nlink+0x43/0x110
[   68.753466][ T5213]  ? drop_nlink+0xc3/0x110
[   68.757939][ T5213]  minix_unlink+0x25b/0x320
[   68.762762][ T5213]  ? __pfx_minix_unlink+0x10/0x10
[   68.767833][ T5213]  ? bpf_lsm_inode_unlink+0x9/0x10
[   68.772968][ T5213]  ? security_inode_unlink+0xd9/0x340
[   68.778403][ T5213]  vfs_unlink+0x365/0x650
[   68.782767][ T5213]  do_unlinkat+0x4ae/0x830
[   68.787216][ T5213]  ? __pfx_do_unlinkat+0x10/0x10
[   68.792263][ T5213]  ? __check_object_size+0x49c/0x900
[   68.797572][ T5213]  ? getname_flags+0x1e3/0x540
[   68.802355][ T5213]  __x64_sys_unlink+0x47/0x50
[   68.807056][ T5213]  do_syscall_64+0xf3/0x230
[   68.811586][ T5213]  ? clear_bhb_loop+0x35/0x90
[   68.816286][ T5213]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   68.822203][ T5213] RIP: 0033:0x7f80d076fb97
[   68.826634][ T5213] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   68.846256][ T5213] RSP: 002b:00007fff00d34fc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[   68.854698][ T5213] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80d076fb97
[   68.862689][ T5213] RDX: 00007fff00d34ff0 RSI: 00007fff00d35080 RDI: 00007fff00d35080
[   68.870681][ T5213] RBP: 00007fff00d35080 R08: 0000000000000000 R09: 0000000000000000
[   68.878757][ T5213] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff00d36170
[   68.886743][ T5213] R13: 000055558348c700 R14: 0000000000000001 R15: 431bde82d7b634db
[   68.894745][ T5213]  </TASK>
[   68.898114][ T5213] Kernel Offset: disabled
[   68.902498][ T5213] Rebooting in 86400 seconds..