./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1555621440

<...>
DUID 00:04:06:88:74:a7:04:75:62:cb:55:93:34:09:94:90:e1:fe
forked to background, child pid 4693
[   32.473654][ T4694] 8021q: adding VLAN 0 to HW filter on device bond0
[   32.484770][ T4694] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts.
execve("./syz-executor1555621440", ["./syz-executor1555621440"], 0x7ffc39f0d480 /* 10 vars */) = 0
brk(NULL)                               = 0x555555bf8000
brk(0x555555bf8c40)                     = 0x555555bf8c40
arch_prctl(ARCH_SET_FS, 0x555555bf8300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor1555621440", 4096) = 28
brk(0x555555c19c40)                     = 0x555555c19c40
brk(0x555555c1a000)                     = 0x555555c1a000
mprotect(0x7fc40f197000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5025 attached
, child_tidptr=0x555555bf85d0) = 5025
[pid  5025] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5025] setsid()                    = 1
[pid  5025] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5025] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5025] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5025] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5025] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5025] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5025] unshare(CLONE_NEWNS)        = 0
[pid  5025] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5025] unshare(CLONE_NEWIPC)       = 0
[pid  5025] unshare(CLONE_NEWCGROUP)    = 0
[pid  5025] unshare(CLONE_NEWUTS)       = 0
[pid  5025] unshare(CLONE_SYSVSEM)      = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "16777216", 8)     = 8
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "536870912", 9)    = 9
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "1024", 4)         = 4
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "8192", 4)         = 4
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "1024", 4)         = 4
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "1024", 4)         = 4
[pid  5025] close(3)                    = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5025] close(3)                    = 0
[pid  5025] getpid()                    = 1
[pid  5025] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5025] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5025] unshare(CLONE_NEWNET)       = 0
[pid  5025] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5025] write(3, "0 65535", 7)      = 7
[pid  5025] close(3)                    = 0
[pid  5025] mkdir("/dev/binderfs", 0777) = 0
[pid  5025] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5025] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5025] memfd_create("syzkaller", 0) = 3
[pid  5025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc406cdc000
[pid  5025] 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"..., 1048576) = 1048576
[pid  5025] munmap(0x7fc406cdc000, 1048576) = 0
[pid  5025] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5025] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5025] close(3)                    = 0
[pid  5025] mkdir("./file0", 0777)      = 0
[pid  5025] mount("/dev/loop0", "./file0", "nilfs2", MS_NOEXEC|MS_NODIRATIME, "") = 0
[pid  5025] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5025] chdir("./file0")            = 0
[pid  5025] ioctl(4, LOOP_CLR_FD)       = 0
syzkaller login: [   59.874645][ T5025] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5025 'syz-executor155'
[   59.898410][ T5025] loop0: detected capacity change from 0 to 2048
[pid  5025] close(4)                    = 0
[pid  5025] openat(AT_FDCWD, ".", O_RDONLY) = 4
[pid  5025] mkdirat(4, "./bus", 0177757) = 0
[pid  5025] exit_group(1)               = ?
[   59.916595][ T5028] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[   59.959293][ T5028] ------------[ cut here ]------------
[   59.965024][ T5028] WARNING: CPU: 0 PID: 5028 at fs/nilfs2/sufile.c:539 nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   59.975858][ T5028] Modules linked in:
[   59.979745][ T5028] CPU: 0 PID: 5028 Comm: segctord Not tainted 6.4.0-next-20230630-syzkaller #0
[   59.988827][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[   59.999050][ T5028] RIP: 0010:nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.006123][ T5028] Code: 95 4f fe 48 8b 6c 24 48 48 85 ed 0f 85 5b ff ff ff e9 63 ff ff ff e8 e2 95 4f fe e8 bd 01 cb fd e9 db fe ff ff e8 d3 95 4f fe <0f> 0b e9 04 fe ff ff e8 37 c7 a2 fe e9 b5 fb ff ff e8 2d c7 a2 fe
[   60.025985][ T5028] RSP: 0018:ffffc90003aefa78 EFLAGS: 00010293
[   60.032242][ T5028] RAX: 0000000000000000 RBX: ffff888077ef2160 RCX: 0000000000000000
[   60.040230][ T5028] RDX: ffff8880217cbb80 RSI: ffffffff83357ddd RDI: 0000000000000005
[   60.048363][ T5028] RBP: ffff88807bd49060 R08: 0000000000000005 R09: 0000000000000000
[   60.056425][ T5028] R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000
[   60.064429][ T5028] R13: 1ffff9200075df54 R14: ffff888077ef25e8 R15: 0000000064a16ece
[   60.072449][ T5028] FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[   60.081377][ T5028] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.087994][ T5028] CR2: 00007fc40f16c418 CR3: 000000000c775000 CR4: 00000000003506f0
[   60.096016][ T5028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   60.104019][ T5028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   60.112020][ T5028] Call Trace:
[   60.115378][ T5028]  <TASK>
[   60.118298][ T5028]  ? __warn+0xe6/0x390
[   60.122409][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.128683][ T5028]  ? report_bug+0x2da/0x500
[   60.133261][ T5028]  ? handle_bug+0x3c/0x70
[   60.137616][ T5028]  ? exc_invalid_op+0x18/0x50
[   60.142469][ T5028]  ? asm_exc_invalid_op+0x1a/0x20
[   60.147537][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.153845][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.160112][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.166423][ T5028]  ? nilfs_sufile_mark_dirty+0x5a0/0x5a0
[   60.172107][ T5028]  nilfs_segctor_do_construct+0x1888/0x72f0
[   60.178013][ T5028]  ? nilfs_segctor_abort_construction+0xe50/0xe50
[   60.184464][ T5028]  ? do_raw_spin_lock+0x124/0x2b0
[   60.189516][ T5028]  ? spin_bug+0x1c0/0x1c0
[   60.193889][ T5028]  ? do_raw_spin_unlock+0x175/0x230
[   60.199111][ T5028]  ? _raw_spin_unlock+0x28/0x40
[   60.204040][ T5028]  nilfs_segctor_construct+0x8e3/0xb30
[   60.209524][ T5028]  ? rcu_is_watching+0x12/0xb0
[   60.214328][ T5028]  ? trace_nilfs2_transaction_transition+0x17d/0x1c0
[   60.221039][ T5028]  nilfs_segctor_thread+0x3c7/0xf30
[   60.226307][ T5028]  ? nilfs_segctor_construct+0xb30/0xb30
[   60.231996][ T5028]  ? prepare_to_swait_exclusive+0x240/0x240
[   60.237896][ T5028]  ? __kthread_parkme+0x163/0x220
[   60.242957][ T5028]  ? nilfs_segctor_construct+0xb30/0xb30
[   60.248616][ T5028]  kthread+0x344/0x440
[   60.252763][ T5028]  ? kthread_complete_and_exit+0x40/0x40
[   60.258454][ T5028]  ret_from_fork+0x1f/0x30
[   60.262967][ T5028]  </TASK>
[   60.266004][ T5028] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   60.273282][ T5028] CPU: 0 PID: 5028 Comm: segctord Not tainted 6.4.0-next-20230630-syzkaller #0
[   60.282206][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[   60.292431][ T5028] Call Trace:
[   60.295697][ T5028]  <TASK>
[   60.298635][ T5028]  dump_stack_lvl+0xd9/0x150
[   60.303221][ T5028]  panic+0x686/0x730
[   60.307129][ T5028]  ? panic_smp_self_stop+0xa0/0xa0
[   60.312243][ T5028]  ? show_trace_log_lvl+0x284/0x390
[   60.317448][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.323693][ T5028]  check_panic_on_warn+0xb1/0xc0
[   60.328630][ T5028]  __warn+0xf2/0x390
[   60.332518][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.338754][ T5028]  report_bug+0x2da/0x500
[   60.343080][ T5028]  handle_bug+0x3c/0x70
[   60.347231][ T5028]  exc_invalid_op+0x18/0x50
[   60.351740][ T5028]  asm_exc_invalid_op+0x1a/0x20
[   60.356595][ T5028] RIP: 0010:nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.363545][ T5028] Code: 95 4f fe 48 8b 6c 24 48 48 85 ed 0f 85 5b ff ff ff e9 63 ff ff ff e8 e2 95 4f fe e8 bd 01 cb fd e9 db fe ff ff e8 d3 95 4f fe <0f> 0b e9 04 fe ff ff e8 37 c7 a2 fe e9 b5 fb ff ff e8 2d c7 a2 fe
[   60.383168][ T5028] RSP: 0018:ffffc90003aefa78 EFLAGS: 00010293
[   60.389246][ T5028] RAX: 0000000000000000 RBX: ffff888077ef2160 RCX: 0000000000000000
[   60.397219][ T5028] RDX: ffff8880217cbb80 RSI: ffffffff83357ddd RDI: 0000000000000005
[   60.405198][ T5028] RBP: ffff88807bd49060 R08: 0000000000000005 R09: 0000000000000000
[   60.413192][ T5028] R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000
[   60.421186][ T5028] R13: 1ffff9200075df54 R14: ffff888077ef25e8 R15: 0000000064a16ece
[   60.429195][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.435475][ T5028]  ? nilfs_sufile_set_segment_usage+0x52d/0x6b0
[   60.441737][ T5028]  ? nilfs_sufile_mark_dirty+0x5a0/0x5a0
[   60.447404][ T5028]  nilfs_segctor_do_construct+0x1888/0x72f0
[   60.453339][ T5028]  ? nilfs_segctor_abort_construction+0xe50/0xe50
[   60.459770][ T5028]  ? do_raw_spin_lock+0x124/0x2b0
[   60.464813][ T5028]  ? spin_bug+0x1c0/0x1c0
[   60.469162][ T5028]  ? do_raw_spin_unlock+0x175/0x230
[   60.474379][ T5028]  ? _raw_spin_unlock+0x28/0x40
[   60.479254][ T5028]  nilfs_segctor_construct+0x8e3/0xb30
[   60.484735][ T5028]  ? rcu_is_watching+0x12/0xb0
[   60.489504][ T5028]  ? trace_nilfs2_transaction_transition+0x17d/0x1c0
[   60.496196][ T5028]  nilfs_segctor_thread+0x3c7/0xf30
[   60.501432][ T5028]  ? nilfs_segctor_construct+0xb30/0xb30
[   60.507090][ T5028]  ? prepare_to_swait_exclusive+0x240/0x240
[   60.512999][ T5028]  ? __kthread_parkme+0x163/0x220
[   60.518032][ T5028]  ? nilfs_segctor_construct+0xb30/0xb30
[   60.523682][ T5028]  kthread+0x344/0x440
[   60.527758][ T5028]  ? kthread_complete_and_exit+0x40/0x40
[   60.533400][ T5028]  ret_from_fork+0x1f/0x30
[   60.537845][ T5028]  </TASK>
[   60.541063][ T5028] Kernel Offset: disabled
[   60.545469][ T5028] Rebooting in 86400 seconds..