./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3523526568
<...>
Warning: Permanently added '10.128.1.146' (ED25519) to the list of known hosts.
execve("./syz-executor3523526568", ["./syz-executor3523526568"], 0x7ffd31c5e080 /* 10 vars */) = 0
brk(NULL) = 0x555561c84000
brk(0x555561c84d00) = 0x555561c84d00
arch_prctl(ARCH_SET_FS, 0x555561c84380) = 0
set_tid_address(0x555561c84650) = 5833
set_robust_list(0x555561c84660, 24) = 0
rseq(0x555561c84ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3523526568", 4096) = 28
getrandom("\x75\xe0\xda\x4b\x00\x83\x8d\x5d", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555561c84d00
brk(0x555561ca5d00) = 0x555561ca5d00
brk(0x555561ca6000) = 0x555561ca6000
mprotect(0x7fdac8488000, 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.NsAafi", 0700) = 0
chmod("./syzkaller.NsAafi", 0777) = 0
chdir("./syzkaller.NsAafi") = 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 5835 attached
, child_tidptr=0x555561c84650) = 5835
[pid 5835] set_robust_list(0x555561c84660, 24) = 0
[pid 5835] chdir("./0") = 0
[pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5835] setpgid(0, 0) = 0
[pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5835] write(3, "1000", 4) = 4
[pid 5835] close(3) = 0
[pid 5835] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5835] write(1, "executing program\n", 18) = 18
[pid 5835] memfd_create("syzkaller", 0) = 3
[pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdabfe00000
[pid 5835] 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 5835] munmap(0x7fdabfe00000, 138412032) = 0
[pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5835] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5835] close(3) = 0
[pid 5835] close(4) = 0
[pid 5835] mkdir("./bus", 0777) = 0
[pid 5835] mount("/dev/loop0", "./bus", "minix", MS_REC, "") = 0
[pid 5835] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
[pid 5835] chdir("./bus") = 0
[pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 62.655783][ T5835] loop0: detected capacity change from 0 to 64
[pid 5835] truncate("./file2", 524288) = 0
[pid 5835] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 4
[pid 5835] unlink("./file1") = 0
[pid 5835] creat("./bus", 000) = -1 ENOSPC (No space left on device)
[pid 5835] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5835] mkdirat(AT_FDCWD, "./file1", 000) = 0
[pid 5835] mkdir("./bus", 000) = 0
[ 62.718795][ T5835] Trying to free block not in datazone
[ 62.738731][ T5835] Trying to free block not in datazone
[ 62.744437][ T5835] minix_free_inode: bit 5 already cleared
[pid 5835] mount(NULL, "./bus", "overlay", 0, "upperdir=./file1,lowerdir=./file0,workdir=./bus,") = 0
[pid 5835] chdir("./bus") = 0
[ 62.788622][ T5835] overlayfs: upper fs needs to support d_type.
[ 62.798030][ T5835] overlayfs: upper fs does not support RENAME_WHITEOUT.
[ 62.805089][ T5835] overlayfs: failed to set xattr on upper
[ 62.810986][ T5835] overlayfs: ...falling back to redirect_dir=nofollow.
[ 62.817899][ T5835] overlayfs: ...falling back to index=off.
[ 62.823704][ T5835] overlayfs: ...falling back to uuid=null.
[pid 5835] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 5
[pid 5835] exit_group(0) = ?
[pid 5835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 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
[ 62.840050][ T29] audit: type=1800 audit(1736070589.102:2): pid=5835 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor352" 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, 0x555561c856f0 /* 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, 0x555561c8d730 /* 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, 0x555561c95770 /* 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, 0x555561c9d7b0 /* 2 entries */, 32768) = 48
getdents64(6, 0x555561c9d7b0 /* 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, 0x555561c95770 /* 0 entries */, 32768) = 0
close(5) = 0
[ 63.335977][ T5833] ------------[ cut here ]------------
[ 63.341590][ T5833] WARNING: CPU: 1 PID: 5833 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 63.349735][ T5833] Modules linked in:
[ 63.353670][ T5833] CPU: 1 UID: 0 PID: 5833 Comm: syz-executor352 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
[ 63.364350][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 63.374524][ T5833] RIP: 0010:drop_nlink+0xc4/0x110
[ 63.379790][ T5833] 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
[ 63.399532][ T5833] RSP: 0018:ffffc90003fdfd30 EFLAGS: 00010293
[ 63.405742][ T5833] RAX: ffffffff823e8cd3 RBX: 1ffff1100ec070ba RCX: ffff88802df3da00
[ 63.413755][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 63.421828][ T5833] RBP: 0000000000000000 R08: ffffffff823e8c53 R09: 1ffffffff203563e
[ 63.429903][ T5833] R10: dffffc0000000000 R11: fffffbfff203563f R12: ffff8880760385d0
[ 63.437968][ T5833] R13: ffff88807e61fa70 R14: ffff888076038588 R15: dffffc0000000000
[ 63.446093][ T5833] FS: 0000555561c84380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[ 63.455245][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 63.461855][ T5833] CR2: 00007ffd8571be7c CR3: 00000000726ac000 CR4: 00000000003526f0
[ 63.469912][ T5833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 63.477951][ T5833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 63.486011][ T5833] Call Trace:
[ 63.489316][ T5833]
[ 63.492239][ T5833] ? __warn+0x165/0x4d0
[ 63.496438][ T5833] ? drop_nlink+0xc4/0x110
[ 63.500918][ T5833] ? report_bug+0x2b3/0x500
[ 63.505489][ T5833] ? drop_nlink+0xc4/0x110
[ 63.509932][ T5833] ? handle_bug+0x60/0x90
[ 63.514258][ T5833] ? exc_invalid_op+0x1a/0x50
[ 63.518991][ T5833] ? asm_exc_invalid_op+0x1a/0x20
[ 63.524059][ T5833] ? drop_nlink+0x43/0x110
[ 63.528571][ T5833] ? drop_nlink+0xc3/0x110
[ 63.533040][ T5833] ? drop_nlink+0xc4/0x110
[ 63.537553][ T5833] minix_rmdir+0xa5/0xc0
[ 63.541820][ T5833] vfs_rmdir+0x3a3/0x510
[ 63.546138][ T5833] do_rmdir+0x3b5/0x580
[ 63.550329][ T5833] ? __virt_addr_valid+0x183/0x530
[ 63.555520][ T5833] ? __pfx_do_rmdir+0x10/0x10
[ 63.560225][ T5833] ? getname_flags+0x1e3/0x540
[ 63.564983][ T5833] __x64_sys_rmdir+0x47/0x50
[ 63.569629][ T5833] do_syscall_64+0xf3/0x230
[ 63.574148][ T5833] ? clear_bhb_loop+0x35/0x90
[ 63.578902][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.584819][ T5833] RIP: 0033:0x7fdac8413d87
[ 63.589304][ T5833] 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
[ 63.608963][ T5833] RSP: 002b:00007ffd85719c88 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 63.617433][ T5833] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdac8413d87
[ 63.625445][ T5833] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffd8571ae30
[ 63.633426][ T5833] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 63.641461][ T5833] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffd8571ae30
[ 63.649474][ T5833] R13: 0000555561c95740 R14: 431bde82d7b634db R15: 00007ffd8571cfb0
[ 63.657552][ T5833]
[ 63.660624][ T5833] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 63.667921][ T5833] CPU: 1 UID: 0 PID: 5833 Comm: syz-executor352 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
[ 63.678509][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 63.688579][ T5833] Call Trace:
[ 63.691868][ T5833]
[ 63.694808][ T5833] dump_stack_lvl+0x241/0x360
[ 63.699499][ T5833] ? __pfx_dump_stack_lvl+0x10/0x10
[ 63.704699][ T5833] ? __pfx__printk+0x10/0x10
[ 63.709301][ T5833] ? vscnprintf+0x5d/0x90
[ 63.713638][ T5833] panic+0x349/0x880
[ 63.717542][ T5833] ? __warn+0x174/0x4d0
[ 63.721724][ T5833] ? __pfx_panic+0x10/0x10
[ 63.726208][ T5833] __warn+0x344/0x4d0
[ 63.730211][ T5833] ? drop_nlink+0xc4/0x110
[ 63.734640][ T5833] report_bug+0x2b3/0x500
[ 63.738978][ T5833] ? drop_nlink+0xc4/0x110
[ 63.743404][ T5833] handle_bug+0x60/0x90
[ 63.747555][ T5833] exc_invalid_op+0x1a/0x50
[ 63.752080][ T5833] asm_exc_invalid_op+0x1a/0x20
[ 63.756957][ T5833] RIP: 0010:drop_nlink+0xc4/0x110
[ 63.761997][ T5833] 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
[ 63.781616][ T5833] RSP: 0018:ffffc90003fdfd30 EFLAGS: 00010293
[ 63.787694][ T5833] RAX: ffffffff823e8cd3 RBX: 1ffff1100ec070ba RCX: ffff88802df3da00
[ 63.795664][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 63.803634][ T5833] RBP: 0000000000000000 R08: ffffffff823e8c53 R09: 1ffffffff203563e
[ 63.811631][ T5833] R10: dffffc0000000000 R11: fffffbfff203563f R12: ffff8880760385d0
[ 63.819637][ T5833] R13: ffff88807e61fa70 R14: ffff888076038588 R15: dffffc0000000000
[ 63.827639][ T5833] ? drop_nlink+0x43/0x110
[ 63.832071][ T5833] ? drop_nlink+0xc3/0x110
[ 63.836504][ T5833] minix_rmdir+0xa5/0xc0
[ 63.840747][ T5833] vfs_rmdir+0x3a3/0x510
[ 63.845016][ T5833] do_rmdir+0x3b5/0x580
[ 63.849186][ T5833] ? __virt_addr_valid+0x183/0x530
[ 63.854571][ T5833] ? __pfx_do_rmdir+0x10/0x10
[ 63.859264][ T5833] ? getname_flags+0x1e3/0x540
[ 63.864031][ T5833] __x64_sys_rmdir+0x47/0x50
[ 63.868646][ T5833] do_syscall_64+0xf3/0x230
[ 63.873166][ T5833] ? clear_bhb_loop+0x35/0x90
[ 63.877949][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.883852][ T5833] RIP: 0033:0x7fdac8413d87
[ 63.888274][ T5833] 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
[ 63.907891][ T5833] RSP: 002b:00007ffd85719c88 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 63.916312][ T5833] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdac8413d87
[ 63.924328][ T5833] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffd8571ae30
[ 63.932314][ T5833] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 63.940292][ T5833] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffd8571ae30
[ 63.948368][ T5833] R13: 0000555561c95740 R14: 431bde82d7b634db R15: 00007ffd8571cfb0
[ 63.956360][ T5833]
[ 63.959674][ T5833] Kernel Offset: disabled
[ 63.964032][ T5833] Rebooting in 86400 seconds..