./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1983534516
<...>
Warning: Permanently added '10.128.1.116' (ED25519) to the list of known hosts.
execve("./syz-executor1983534516", ["./syz-executor1983534516"], 0x7ffd19e21370 /* 10 vars */) = 0
brk(NULL) = 0x55557028b000
brk(0x55557028bd00) = 0x55557028bd00
arch_prctl(ARCH_SET_FS, 0x55557028b380) = 0
set_tid_address(0x55557028b650) = 5829
set_robust_list(0x55557028b660, 24) = 0
rseq(0x55557028bca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1983534516", 4096) = 28
getrandom("\xb6\xc1\xc0\x57\xa3\xce\x6a\xb8", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55557028bd00
brk(0x5555702acd00) = 0x5555702acd00
brk(0x5555702ad000) = 0x5555702ad000
mprotect(0x7f4c65ec8000, 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.Jk27Hn", 0700) = 0
chmod("./syzkaller.Jk27Hn", 0777) = 0
chdir("./syzkaller.Jk27Hn") = 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 5830 attached
, child_tidptr=0x55557028b650) = 5830
[pid 5830] set_robust_list(0x55557028b660, 24) = 0
[pid 5830] chdir("./0") = 0
[pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5830] setpgid(0, 0) = 0
[pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5830] write(3, "1000", 4) = 4
[pid 5830] close(3) = 0
[pid 5830] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5830] write(1, "executing program\n", 18executing program
) = 18
[pid 5830] memfd_create("syzkaller", 0) = 3
[pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4c5da00000
[pid 5830] 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"..., 32768) = 32768
[pid 5830] munmap(0x7f4c5da00000, 138412032) = 0
[pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5830] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5830] close(3) = 0
[pid 5830] close(4) = 0
[pid 5830] mkdir("./bus", 0777) = 0
[pid 5830] mount("/dev/loop0", "./bus", "minix", MS_REC, "") = 0
[ 89.177827][ T5830] loop0: detected capacity change from 0 to 64
[pid 5830] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
[pid 5830] chdir("./bus") = 0
[pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5830] truncate("./file2", 524288) = 0
[pid 5830] unlink("./file1") = 0
[pid 5830] creat("./bus", 000) = -1 ENOSPC (No space left on device)
[pid 5830] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5830] mkdirat(AT_FDCWD, "./file1", 000) = 0
[pid 5830] mkdir("./bus", 000) = 0
[ 89.277413][ T5830] Trying to free block not in datazone
[ 89.290303][ T5830] Trying to free block not in datazone
[ 89.296264][ T5830] minix_free_inode: bit 5 already cleared
[ 89.368196][ T5830] overlayfs: upper fs needs to support d_type.
[ 89.379197][ T5830] overlayfs: upper fs does not support RENAME_WHITEOUT.
[ 89.393550][ T5830] overlayfs: failed to set xattr on upper
[ 89.400466][ T5830] overlayfs: ...falling back to redirect_dir=nofollow.
[pid 5830] mount(NULL, "./bus", "overlay", 0, "upperdir=./file1,lowerdir=./file0,workdir=./bus,") = 0
[pid 5830] chdir("./bus") = 0
[ 89.416586][ T5830] overlayfs: ...falling back to index=off.
[ 89.426285][ T5830] overlayfs: ...falling back to uuid=null.
[pid 5830] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5830] exit_group(0) = ?
[pid 5830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 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
[ 89.476737][ T29] audit: type=1800 audit(1736024288.567:2): pid=5830 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name="bus" dev="overlay" ino=4 res=0 errno=0
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557028c6f0 /* 4 entries */, 32768) = 104
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/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0755, st_size=512, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=512, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555570294730 /* 8 entries */, 32768) = 232
umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/bus/file0", {st_mode=S_IFDIR|0755, st_size=256, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/bus/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
newfstatat(5, "", {st_mode=S_IFDIR|0755, st_size=256, ...}, AT_EMPTY_PATH) = 0
getdents64(5, 0x55557029c770 /* 4 entries */, 32768) = 104
umount2("./0/bus/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/bus/file0/file0", {st_mode=S_IFDIR|000, st_size=192, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/bus/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
newfstatat(6, "", {st_mode=S_IFDIR|000, st_size=192, ...}, AT_EMPTY_PATH) = 0
getdents64(6, 0x5555702a47b0 /* 2 entries */, 32768) = 48
getdents64(6, 0x5555702a47b0 /* 0 entries */, 32768) = 0
close(6) = 0
rmdir("./0/bus/file0/file0") = 0
umount2("\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96") = 0
getdents64(5, 0x55557029c770 /* 0 entries */, 32768) = 0
close(5) = 0
[ 89.847185][ T5829] ------------[ cut here ]------------
[ 89.854174][ T5829] WARNING: CPU: 0 PID: 5829 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 89.863807][ T5829] Modules linked in:
[ 89.868143][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor198 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
[ 89.879779][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 89.890339][ T5829] RIP: 0010:drop_nlink+0xc4/0x110
[ 89.895896][ T5829] Code: bb 70 07 00 00 be 08 00 00 00 e8 87 15 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 97 80 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 89.916054][ T5829] RSP: 0018:ffffc90003fcfd30 EFLAGS: 00010293
[ 89.922650][ T5829] RAX: ffffffff823e8cd3 RBX: 1ffff1100e5b1163 RCX: ffff88807fd7da00
[ 89.931746][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 89.940101][ T5829] RBP: 0000000000000000 R08: ffffffff823e8c53 R09: 1ffffffff203563e
[ 89.949611][ T5829] R10: dffffc0000000000 R11: fffffbfff203563f R12: ffff888072d88b18
[ 89.958096][ T5829] R13: ffff88807a73c758 R14: ffff888072d88ad0 R15: dffffc0000000000
[ 89.966690][ T5829] FS: 000055557028b380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 89.979713][ T5829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 89.992738][ T5829] CR2: 00007ffd6bd98bd8 CR3: 00000000758f2000 CR4: 00000000003526f0
[ 90.011902][ T5829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 90.020632][ T5829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 90.035398][ T5829] Call Trace:
[ 90.038823][ T5829]
[ 90.051778][ T5829] ? __warn+0x165/0x4d0
[ 90.056446][ T5829] ? drop_nlink+0xc4/0x110
[ 90.072096][ T5829] ? report_bug+0x2b3/0x500
[ 90.078107][ T5829] ? drop_nlink+0xc4/0x110
[ 90.094928][ T5829] ? handle_bug+0x60/0x90
[ 90.100624][ T5829] ? exc_invalid_op+0x1a/0x50
[ 90.115302][ T5829] ? asm_exc_invalid_op+0x1a/0x20
[ 90.131787][ T5829] ? drop_nlink+0x43/0x110
[ 90.136832][ T5829] ? drop_nlink+0xc3/0x110
[ 90.141532][ T5829] ? drop_nlink+0xc4/0x110
[ 90.155014][ T5829] minix_rmdir+0xa5/0xc0
[ 90.160025][ T5829] vfs_rmdir+0x3a3/0x510
[ 90.174745][ T5829] do_rmdir+0x3b5/0x580
[ 90.179214][ T5829] ? __virt_addr_valid+0x183/0x530
[ 90.185938][ T5829] ? __pfx_do_rmdir+0x10/0x10
[ 90.195079][ T5829] ? getname_flags+0x1e3/0x540
[ 90.200134][ T5829] __x64_sys_rmdir+0x47/0x50
[ 90.213896][ T5829] do_syscall_64+0xf3/0x230
[ 90.218595][ T5829] ? clear_bhb_loop+0x35/0x90
[ 90.233968][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.252068][ T5829] RIP: 0033:0x7f4c65e53d47
[ 90.256770][ T5829] 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 54 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
[ 90.288233][ T5829] RSP: 002b:00007ffd6bd99388 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 90.298456][ T5829] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4c65e53d47
[ 90.308648][ T5829] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffd6bd9a530
[ 90.317264][ T5829] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 90.336321][ T5829] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffd6bd9a530
[ 90.354245][ T5829] R13: 000055557029c740 R14: 431bde82d7b634db R15: 00007ffd6bd9c6b0
[ 90.374899][ T5829]
[ 90.378030][ T5829] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 90.395391][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor198 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
[ 90.415373][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 90.431704][ T5829] Call Trace:
[ 90.435357][ T5829]
[ 90.438660][ T5829] dump_stack_lvl+0x241/0x360
[ 90.453656][ T5829] ? __pfx_dump_stack_lvl+0x10/0x10
[ 90.459112][ T5829] ? __pfx__printk+0x10/0x10
[ 90.467167][ T5829] ? vscnprintf+0x5d/0x90
[ 90.471660][ T5829] panic+0x349/0x880
[ 90.476568][ T5829] ? __warn+0x174/0x4d0
[ 90.481200][ T5829] ? __pfx_panic+0x10/0x10
[ 90.491936][ T5829] __warn+0x344/0x4d0
[ 90.496567][ T5829] ? drop_nlink+0xc4/0x110
[ 90.511712][ T5829] report_bug+0x2b3/0x500
[ 90.517387][ T5829] ? drop_nlink+0xc4/0x110
[ 90.531974][ T5829] handle_bug+0x60/0x90
[ 90.537371][ T5829] exc_invalid_op+0x1a/0x50
[ 90.551675][ T5829] asm_exc_invalid_op+0x1a/0x20
[ 90.557118][ T5829] RIP: 0010:drop_nlink+0xc4/0x110
[ 90.572577][ T5829] Code: bb 70 07 00 00 be 08 00 00 00 e8 87 15 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 97 80 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 90.613542][ T5829] RSP: 0018:ffffc90003fcfd30 EFLAGS: 00010293
[ 90.620546][ T5829] RAX: ffffffff823e8cd3 RBX: 1ffff1100e5b1163 RCX: ffff88807fd7da00
[ 90.635037][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 90.647781][ T5829] RBP: 0000000000000000 R08: ffffffff823e8c53 R09: 1ffffffff203563e
[ 90.658495][ T5829] R10: dffffc0000000000 R11: fffffbfff203563f R12: ffff888072d88b18
[ 90.668421][ T5829] R13: ffff88807a73c758 R14: ffff888072d88ad0 R15: dffffc0000000000
[ 90.676886][ T5829] ? drop_nlink+0x43/0x110
[ 90.681427][ T5829] ? drop_nlink+0xc3/0x110
[ 90.686434][ T5829] minix_rmdir+0xa5/0xc0
[ 90.690713][ T5829] vfs_rmdir+0x3a3/0x510
[ 90.695219][ T5829] do_rmdir+0x3b5/0x580
[ 90.699566][ T5829] ? __virt_addr_valid+0x183/0x530
[ 90.705068][ T5829] ? __pfx_do_rmdir+0x10/0x10
[ 90.710880][ T5829] ? getname_flags+0x1e3/0x540
[ 90.716581][ T5829] __x64_sys_rmdir+0x47/0x50
[ 90.722484][ T5829] do_syscall_64+0xf3/0x230
[ 90.734964][ T5829] ? clear_bhb_loop+0x35/0x90
[ 90.740102][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.756538][ T5829] RIP: 0033:0x7f4c65e53d47
[ 90.761150][ T5829] 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 54 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
[ 90.797721][ T5829] RSP: 002b:00007ffd6bd99388 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 90.816296][ T5829] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4c65e53d47
[ 90.834268][ T5829] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffd6bd9a530
[ 90.847453][ T5829] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 90.855684][ T5829] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffd6bd9a530
[ 90.864430][ T5829] R13: 000055557029c740 R14: 431bde82d7b634db R15: 00007ffd6bd9c6b0
[ 90.874396][ T5829]
[ 90.877767][ T5829] Kernel Offset: disabled
[ 90.883208][ T5829] Rebooting in 86400 seconds..