./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2482729629

<...>
Warning: Permanently added '10.128.0.170' (ED25519) to the list of known hosts.
execve("./syz-executor2482729629", ["./syz-executor2482729629"], 0x7ffffd252a20 /* 10 vars */) = 0
brk(NULL)                               = 0x55555d16f000
brk(0x55555d16fd00)                     = 0x55555d16fd00
arch_prctl(ARCH_SET_FS, 0x55555d16f380) = 0
set_tid_address(0x55555d16f650)         = 5222
set_robust_list(0x55555d16f660, 24)     = 0
rseq(0x55555d16fca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2482729629", 4096) = 28
getrandom("\xc5\xa0\x5c\xc1\xc4\xce\x8b\xf2", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555d16fd00
brk(0x55555d190d00)                     = 0x55555d190d00
brk(0x55555d191000)                     = 0x55555d191000
mprotect(0x7fa11bfcb000, 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
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 5223 attached
 <unfinished ...>
[pid  5223] set_robust_list(0x55555d16f660, 24) = 0
[pid  5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5223] setpgid(0, 0 <unfinished ...>
[pid  5222] <... clone resumed>, child_tidptr=0x55555d16f650) = 5223
[pid  5223] <... setpgid resumed>)      = 0
[pid  5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5223] write(3, "1000", 4)         = 4
[pid  5223] close(3)                    = 0
[pid  5223] write(1, "executing program\n", 18executing program
) = 18
[pid  5223] memfd_create("syzkaller", 0) = 3
[pid  5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5223] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5223] munmap(0x7fa113a00000, 138412032) = 0
[pid  5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5223] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5223] close(3)                    = 0
[pid  5223] close(4)                    = 0
[pid  5223] mkdir("./file1", 0777)      = 0
[   66.035280][ T5223] loop0: detected capacity change from 0 to 32768
[   66.069402][ T5223] =======================================================
[   66.069402][ T5223] WARNING: The mand mount option has been deprecated and
[   66.069402][ T5223]          and is ignored by this kernel. Remove the mand
[   66.069402][ T5223]          option from the mount to silence this warning.
[   66.069402][ T5223] =======================================================
[   66.122492][ T5223] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
[pid  5223] mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "coherency=buffered,heartbeat=none,coherency=full,errors=continue,journal_async_commit,localflocks,at"...) = 0
[pid  5223] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5223] chdir("./file1")            = 0
[pid  5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[   66.133797][  T924] (kworker/u8:5,924,1):ocfs2_check_dir_entry:325 ERROR: bad entry in directory #72: rec_len % 4 != 0 - offset=16, inode=66, rec_len=491, name_len=2
[pid  5223] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[   66.179861][   T29] audit: type=1800 audit(1729718476.598:2): pid=5223 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor248" name="file1" dev="loop0" ino=17058 res=0 errno=0
[   66.191276][ T5223] 
[   66.203187][ T5223] ======================================================
[   66.210367][ T5223] WARNING: possible circular locking dependency detected
[   66.217419][ T5223] 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0 Not tainted
[   66.224625][ T5223] ------------------------------------------------------
[   66.231654][ T5223] syz-executor248/5223 is trying to acquire lock:
[   66.238065][ T5223] ffff8880734ced80 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x192/0x4eb0
[   66.251369][ T5223] 
[   66.251369][ T5223] but task is already holding lock:
[   66.258844][ T5223] ffff8880734d3ff8 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_xattr_set+0x633/0x1930
[   66.268361][ T5223] 
[   66.268361][ T5223] which lock already depends on the new lock.
[   66.268361][ T5223] 
[   66.278802][ T5223] 
[   66.278802][ T5223] the existing dependency chain (in reverse order) is:
[   66.288026][ T5223] 
[   66.288026][ T5223] -> #5 (&oi->ip_xattr_sem){++++}-{3:3}:
[   66.295868][ T5223]        lock_acquire+0x1ed/0x550
[   66.300935][ T5223]        down_read+0xb1/0xa40
[   66.305657][ T5223]        ocfs2_init_acl+0x397/0x930
[   66.310853][ T5223]        ocfs2_mknod+0x1c05/0x2b40
[   66.315991][ T5223]        ocfs2_create+0x1ab/0x480
[   66.321040][ T5223]        path_openat+0x1c05/0x3590
[   66.326161][ T5223]        do_filp_open+0x235/0x490
[   66.331192][ T5223]        do_sys_openat2+0x13e/0x1d0
[   66.336399][ T5223]        __x64_sys_open+0x225/0x270
[   66.341689][ T5223]        do_syscall_64+0xf3/0x230
[   66.347000][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.353434][ T5223] 
[   66.353434][ T5223] -> #4 (jbd2_handle){.+.+}-{0:0}:
[   66.360861][ T5223]        lock_acquire+0x1ed/0x550
[   66.366008][ T5223]        start_this_handle+0x1eb4/0x2110
[   66.371753][ T5223]        jbd2__journal_start+0x2da/0x5d0
[   66.377452][ T5223]        jbd2_journal_start+0x29/0x40
[   66.382831][ T5223]        ocfs2_start_trans+0x3c9/0x700
[   66.388288][ T5223]        ocfs2_mknod+0x150c/0x2b40
[   66.393400][ T5223]        ocfs2_create+0x1ab/0x480
[   66.398461][ T5223]        path_openat+0x1c05/0x3590
[   66.403600][ T5223]        do_filp_open+0x235/0x490
[   66.408651][ T5223]        do_sys_openat2+0x13e/0x1d0
[   66.413871][ T5223]        __x64_sys_open+0x225/0x270
[   66.419090][ T5223]        do_syscall_64+0xf3/0x230
[   66.424131][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.430577][ T5223] 
[   66.430577][ T5223] -> #3 (&journal->j_trans_barrier){.+.+}-{3:3}:
[   66.439107][ T5223]        lock_acquire+0x1ed/0x550
[   66.444162][ T5223]        down_read+0xb1/0xa40
[   66.448867][ T5223]        ocfs2_start_trans+0x3be/0x700
[   66.454347][ T5223]        ocfs2_mknod+0x150c/0x2b40
[   66.459467][ T5223]        ocfs2_create+0x1ab/0x480
[   66.465122][ T5223]        path_openat+0x1c05/0x3590
[   66.470241][ T5223]        do_filp_open+0x235/0x490
[   66.475294][ T5223]        do_sys_openat2+0x13e/0x1d0
[   66.480524][ T5223]        __x64_sys_open+0x225/0x270
[   66.485746][ T5223]        do_syscall_64+0xf3/0x230
[   66.490785][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.497223][ T5223] 
[   66.497223][ T5223] -> #2 (sb_internal#2){.+.+}-{0:0}:
[   66.504749][ T5223]        lock_acquire+0x1ed/0x550
[   66.509800][ T5223]        ocfs2_start_trans+0x2b9/0x700
[   66.515300][ T5223]        ocfs2_mknod+0x150c/0x2b40
[   66.520600][ T5223]        ocfs2_create+0x1ab/0x480
[   66.525734][ T5223]        path_openat+0x1c05/0x3590
[   66.530868][ T5223]        do_filp_open+0x235/0x490
[   66.535898][ T5223]        do_sys_openat2+0x13e/0x1d0
[   66.541275][ T5223]        __x64_sys_open+0x225/0x270
[   66.546495][ T5223]        do_syscall_64+0xf3/0x230
[   66.551542][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.558058][ T5223] 
[   66.558058][ T5223] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}:
[   66.568596][ T5223]        lock_acquire+0x1ed/0x550
[   66.573665][ T5223]        down_write+0x99/0x220
[   66.578435][ T5223]        ocfs2_reserve_local_alloc_bits+0x132/0x2870
[   66.585123][ T5223]        ocfs2_reserve_clusters_with_limit+0x1b8/0xb60
[   66.591986][ T5223]        ocfs2_mknod+0x1486/0x2b40
[   66.597169][ T5223]        ocfs2_create+0x1ab/0x480
[   66.602200][ T5223]        path_openat+0x1c05/0x3590
[   66.607862][ T5223]        do_filp_open+0x235/0x490
[   66.612895][ T5223]        do_sys_openat2+0x13e/0x1d0
[   66.618097][ T5223]        __x64_sys_open+0x225/0x270
[   66.623322][ T5223]        do_syscall_64+0xf3/0x230
[   66.628344][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.634808][ T5223] 
[   66.634808][ T5223] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}:
[   66.645364][ T5223]        validate_chain+0x18ef/0x5920
[   66.650920][ T5223]        __lock_acquire+0x1384/0x2050
[   66.656307][ T5223]        lock_acquire+0x1ed/0x550
[   66.661341][ T5223]        down_write+0x99/0x220
[   66.666115][ T5223]        ocfs2_reserve_suballoc_bits+0x192/0x4eb0
[   66.672541][ T5223]        ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0
[   66.679418][ T5223]        ocfs2_init_xattr_set_ctxt+0x3a6/0x900
[   66.685584][ T5223]        ocfs2_xattr_set+0xf4e/0x1930
[   66.690978][ T5223]        __vfs_setxattr+0x46a/0x4a0
[   66.696179][ T5223]        __vfs_setxattr_noperm+0x12e/0x660
[   66.702015][ T5223]        vfs_setxattr+0x221/0x430
[   66.707063][ T5223]        path_setxattr+0x37e/0x4d0
[   66.712176][ T5223]        __x64_sys_lsetxattr+0xb8/0xd0
[   66.717639][ T5223]        do_syscall_64+0xf3/0x230
[   66.722669][ T5223]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   66.729267][ T5223] 
[   66.729267][ T5223] other info that might help us debug this:
[   66.729267][ T5223] 
[   66.739584][ T5223] Chain exists of:
[   66.739584][ T5223]   &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3 --> jbd2_handle --> &oi->ip_xattr_sem
[   66.739584][ T5223] 
[   66.755350][ T5223]  Possible unsafe locking scenario:
[   66.755350][ T5223] 
[   66.762806][ T5223]        CPU0                    CPU1
[   66.768178][ T5223]        ----                    ----
[   66.773535][ T5223]   lock(&oi->ip_xattr_sem);
[   66.778127][ T5223]                                lock(jbd2_handle);
[   66.784717][ T5223]                                lock(&oi->ip_xattr_sem);
[   66.791835][ T5223]   lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3);
[   66.799136][ T5223] 
[   66.799136][ T5223]  *** DEADLOCK ***
[   66.799136][ T5223] 
[   66.807283][ T5223] 3 locks held by syz-executor248/5223:
[   66.812819][ T5223]  #0: ffff88802b88a420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
[   66.822003][ T5223]  #1: ffff8880734d42c0 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: vfs_setxattr+0x1e1/0x430
[   66.832482][ T5223]  #2: ffff8880734d3ff8 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_xattr_set+0x633/0x1930
[   66.842435][ T5223] 
[   66.842435][ T5223] stack backtrace:
[   66.848401][ T5223] CPU: 1 UID: 0 PID: 5223 Comm: syz-executor248 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
[   66.859520][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   66.869576][ T5223] Call Trace:
[   66.872852][ T5223]  <TASK>
[   66.875859][ T5223]  dump_stack_lvl+0x241/0x360
[   66.880556][ T5223]  ? __pfx_dump_stack_lvl+0x10/0x10
[   66.885761][ T5223]  ? __pfx__printk+0x10/0x10
[   66.890466][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.896121][ T5223]  print_circular_bug+0x13a/0x1b0
[   66.901156][ T5223]  check_noncircular+0x36a/0x4a0
[   66.906097][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.911733][ T5223]  ? __pfx_check_noncircular+0x10/0x10
[   66.917196][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.922837][ T5223]  ? lockdep_lock+0x123/0x2b0
[   66.927528][ T5223]  validate_chain+0x18ef/0x5920
[   66.932398][ T5223]  ? __pfx_validate_chain+0x10/0x10
[   66.937632][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.943357][ T5223]  ? mark_lock+0x9a/0x360
[   66.947783][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.953423][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.959076][ T5223]  ? ocfs2_get_system_file_inode+0x1d4/0x7b0
[   66.965071][ T5223]  ? __pfx_lock_release+0x10/0x10
[   66.970129][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   66.975762][ T5223]  ? mark_lock+0x9a/0x360
[   66.980114][ T5223]  __lock_acquire+0x1384/0x2050
[   66.984978][ T5223]  lock_acquire+0x1ed/0x550
[   66.989493][ T5223]  ? ocfs2_reserve_suballoc_bits+0x192/0x4eb0
[   66.995571][ T5223]  ? __pfx_lock_acquire+0x10/0x10
[   67.000610][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.006248][ T5223]  ? __pfx___might_resched+0x10/0x10
[   67.011567][ T5223]  ? __pfx_ocfs2_get_system_file_inode+0x10/0x10
[   67.017924][ T5223]  ? __lock_acquire+0x1384/0x2050
[   67.022961][ T5223]  down_write+0x99/0x220
[   67.027203][ T5223]  ? ocfs2_reserve_suballoc_bits+0x192/0x4eb0
[   67.033275][ T5223]  ? __pfx_down_write+0x10/0x10
[   67.038132][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.043767][ T5223]  ocfs2_reserve_suballoc_bits+0x192/0x4eb0
[   67.049694][ T5223]  ? mark_lock+0x9a/0x360
[   67.054045][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.059686][ T5223]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[   67.065758][ T5223]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   67.072111][ T5223]  ? _raw_spin_unlock_irqrestore+0x8f/0x140
[   67.078009][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.083640][ T5223]  ? lockdep_hardirqs_on+0x99/0x150
[   67.088836][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.094467][ T5223]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[   67.100367][ T5223]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[   67.106706][ T5223]  ? __pfx_ocfs2_reserve_suballoc_bits+0x10/0x10
[   67.113043][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.118677][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.124307][ T5223]  ? stack_depot_save_flags+0x6e4/0x830
[   67.129866][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.135498][ T5223]  ? kasan_save_track+0x51/0x80
[   67.140365][ T5223]  ? kasan_save_track+0x3f/0x80
[   67.145211][ T5223]  ? __kasan_kmalloc+0x98/0xb0
[   67.150059][ T5223]  ? __kmalloc_cache_noprof+0x19c/0x2c0
[   67.155787][ T5223]  ? ocfs2_reserve_new_metadata_blocks+0x117/0x9c0
[   67.162299][ T5223]  ? ocfs2_init_xattr_set_ctxt+0x3a6/0x900
[   67.168101][ T5223]  ? ocfs2_xattr_set+0xf4e/0x1930
[   67.173124][ T5223]  ? __vfs_setxattr+0x46a/0x4a0
[   67.177971][ T5223]  ? __vfs_setxattr_noperm+0x12e/0x660
[   67.183424][ T5223]  ? vfs_setxattr+0x221/0x430
[   67.188096][ T5223]  ? path_setxattr+0x37e/0x4d0
[   67.192859][ T5223]  ? __x64_sys_lsetxattr+0xb8/0xd0
[   67.197970][ T5223]  ? do_syscall_64+0xf3/0x230
[   67.202649][ T5223]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   67.208865][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.214526][ T5223]  ? __kasan_kmalloc+0x98/0xb0
[   67.219299][ T5223]  ? ocfs2_reserve_new_metadata_blocks+0x117/0x9c0
[   67.225827][ T5223]  ? __kmalloc_cache_noprof+0x19c/0x2c0
[   67.231514][ T5223]  ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0
[   67.237867][ T5223]  ? __pfx_ocfs2_reserve_new_metadata_blocks+0x10/0x10
[   67.244738][ T5223]  ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10
[   67.250927][ T5223]  ? ocfs2_xattr_set+0xf00/0x1930
[   67.255972][ T5223]  ocfs2_init_xattr_set_ctxt+0x3a6/0x900
[   67.261630][ T5223]  ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10
[   67.267823][ T5223]  ? up_write+0x1a9/0x590
[   67.272164][ T5223]  ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10
[   67.278876][ T5223]  ? __pfx_up_write+0x10/0x10
[   67.283563][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.289207][ T5223]  ? __kmalloc_cache_noprof+0x19c/0x2c0
[   67.294781][ T5223]  ocfs2_xattr_set+0xf4e/0x1930
[   67.299825][ T5223]  ? __pfx_ocfs2_xattr_set+0x10/0x10
[   67.305133][ T5223]  ? __pfx_validate_chain+0x10/0x10
[   67.310336][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.315971][ T5223]  ? mark_lock+0x9a/0x360
[   67.320307][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.325953][ T5223]  ? aa_get_newest_label+0xff/0x6f0
[   67.331159][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.336800][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.342435][ T5223]  ? posix_xattr_acl+0xa9/0xd0
[   67.347207][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.352875][ T5223]  ? evm_protect_xattr+0x4be/0xb30
[   67.358004][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.363659][ T5223]  ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10
[   67.369656][ T5223]  __vfs_setxattr+0x46a/0x4a0
[   67.374546][ T5223]  __vfs_setxattr_noperm+0x12e/0x660
[   67.379853][ T5223]  vfs_setxattr+0x221/0x430
[   67.384394][ T5223]  ? __pfx_vfs_setxattr+0x10/0x10
[   67.389417][ T5223]  ? srso_alias_return_thunk+0x5/0xfbef5
[   67.395063][ T5223]  path_setxattr+0x37e/0x4d0
[   67.399668][ T5223]  ? __pfx_path_setxattr+0x10/0x10
[   67.404811][ T5223]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   67.411158][ T5223]  ? do_syscall_64+0x100/0x230
[   67.415927][ T5223]  __x64_sys_lsetxattr+0xb8/0xd0
[   67.420871][ T5223]  do_syscall_64+0xf3/0x230
[   67.425382][ T5223]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   67.431288][ T5223] RIP: 0033:0x7fa11bf52e99
[   67.435702][ T5223] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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
[   67.455326][ T5223] RSP: 002b:00007ffc45e057d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
[   67.463925][ T5223] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fa11bf52e99
[   67.471911][ T5223] RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000020000280
[pid  5223] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5223] exit_group(0)               = ?
[pid  5223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached
, child_tidptr=0x55555d16f650) = 5227
[pid  5227] set_robust_list(0x55555d16f660, 24) = 0
[   67.479891][ T5223] RBP: 00007fa11bf9c095 R08: 0000000000000000 R09: 000055555d1704c0
[   67.487876][ T5223] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc45e05800
[   67.495852][ T5223] R13: 00007ffc45e05a28 R14: 431bde82d7b634db R15: 00007fa11bf9c03b
[   67.503866][ T5223]  </TASK>
[pid  5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5227] setpgid(0, 0)               = 0
[pid  5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5227] write(3, "1000", 4)         = 4
[pid  5227] close(3)                    = 0
executing program
[pid  5227] write(1, "executing program\n", 18) = 18
[pid  5227] memfd_create("syzkaller", 0) = 3
[pid  5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5227] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5227] munmap(0x7fa113a00000, 138412032) = 0
[pid  5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5227] close(3)                    = 0
[pid  5227] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5227] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5227] exit_group(0)               = ?
[pid  5227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached
 <unfinished ...>
[pid  5228] set_robust_list(0x55555d16f660, 24 <unfinished ...>
[pid  5222] <... clone resumed>, child_tidptr=0x55555d16f650) = 5228
[pid  5228] <... set_robust_list resumed>) = 0
[pid  5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5228] setpgid(0, 0)               = 0
[pid  5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5228] write(3, "1000", 4)         = 4
[pid  5228] close(3)                    = 0
executing program
[pid  5228] write(1, "executing program\n", 18) = 18
[pid  5228] memfd_create("syzkaller", 0) = 3
[pid  5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5228] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5228] munmap(0x7fa113a00000, 138412032) = 0
[pid  5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5228] close(3)                    = 0
[pid  5228] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5228] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5228] exit_group(0)               = ?
[pid  5228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached
, child_tidptr=0x55555d16f650) = 5229
[pid  5229] set_robust_list(0x55555d16f660, 24) = 0
[pid  5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5229] setpgid(0, 0)               = 0
[pid  5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5229] write(3, "1000", 4)         = 4
[pid  5229] close(3)                    = 0
executing program
[pid  5229] write(1, "executing program\n", 18) = 18
[pid  5229] memfd_create("syzkaller", 0) = 3
[pid  5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5229] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5229] munmap(0x7fa113a00000, 138412032) = 0
[pid  5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5229] close(3)                    = 0
[pid  5229] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5229] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5229] exit_group(0)               = ?
[pid  5229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5230 attached
, child_tidptr=0x55555d16f650) = 5230
[pid  5230] set_robust_list(0x55555d16f660, 24) = 0
[pid  5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5230] setpgid(0, 0)               = 0
[pid  5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5230] write(3, "1000", 4)         = 4
[pid  5230] close(3executing program
)                    = 0
[pid  5230] write(1, "executing program\n", 18) = 18
[pid  5230] memfd_create("syzkaller", 0) = 3
[pid  5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5230] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5230] munmap(0x7fa113a00000, 138412032) = 0
[pid  5230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5230] close(3)                    = 0
[pid  5230] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5230] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5230] exit_group(0)               = ?
[pid  5230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached
, child_tidptr=0x55555d16f650) = 5231
[pid  5231] set_robust_list(0x55555d16f660, 24) = 0
[pid  5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5231] setpgid(0, 0)               = 0
[pid  5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5231] write(3, "1000", 4)         = 4
[pid  5231] close(3)                    = 0
[pid  5231] write(1, "executing program\n", 18executing program
) = 18
[pid  5231] memfd_create("syzkaller", 0) = 3
[pid  5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5231] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5231] munmap(0x7fa113a00000, 138412032) = 0
[pid  5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5231] close(3)                    = 0
[pid  5231] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5231] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5231] exit_group(0)               = ?
[pid  5231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5232 attached
, child_tidptr=0x55555d16f650) = 5232
[pid  5232] set_robust_list(0x55555d16f660, 24) = 0
[pid  5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5232] setpgid(0, 0)               = 0
[pid  5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "1000", 4)         = 4
[pid  5232] close(3)                    = 0
executing program
[pid  5232] write(1, "executing program\n", 18) = 18
[pid  5232] memfd_create("syzkaller", 0) = 3
[pid  5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5232] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5232] munmap(0x7fa113a00000, 138412032) = 0
[pid  5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5232] close(3)                    = 0
[pid  5232] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5232] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5232] exit_group(0)               = ?
[pid  5232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached
, child_tidptr=0x55555d16f650) = 5233
[pid  5233] set_robust_list(0x55555d16f660, 24) = 0
[pid  5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5233] setpgid(0, 0)               = 0
[pid  5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5233] write(3, "1000", 4)         = 4
[pid  5233] close(3)                    = 0
[pid  5233] write(1, "executing program\n", 18executing program
) = 18
[pid  5233] memfd_create("syzkaller", 0) = 3
[pid  5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5233] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5233] munmap(0x7fa113a00000, 138412032) = 0
[pid  5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5233] close(3)                    = 0
[pid  5233] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5233] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5233] exit_group(0)               = ?
[pid  5233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5234 attached
, child_tidptr=0x55555d16f650) = 5234
[pid  5234] set_robust_list(0x55555d16f660, 24) = 0
[pid  5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5234] setpgid(0, 0)               = 0
[pid  5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5234] write(3, "1000", 4)         = 4
[pid  5234] close(3)                    = 0
executing program
[pid  5234] write(1, "executing program\n", 18) = 18
[pid  5234] memfd_create("syzkaller", 0) = 3
[pid  5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5234] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5234] munmap(0x7fa113a00000, 138412032) = 0
[pid  5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5234] close(3)                    = 0
[pid  5234] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5234] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5234] exit_group(0)               = ?
[pid  5234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5235 attached
, child_tidptr=0x55555d16f650) = 5235
[pid  5235] set_robust_list(0x55555d16f660, 24) = 0
[pid  5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5235] setpgid(0, 0)               = 0
[pid  5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5235] write(3, "1000", 4)         = 4
[pid  5235] close(3)                    = 0
executing program
[pid  5235] write(1, "executing program\n", 18) = 18
[pid  5235] memfd_create("syzkaller", 0) = 3
[pid  5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5235] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5235] munmap(0x7fa113a00000, 138412032) = 0
[pid  5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5235] close(3)                    = 0
[pid  5235] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5235] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5235] exit_group(0)               = ?
[pid  5235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5236 attached
, child_tidptr=0x55555d16f650) = 5236
[pid  5236] set_robust_list(0x55555d16f660, 24) = 0
[pid  5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5236] setpgid(0, 0)               = 0
[pid  5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5236] write(3, "1000", 4)         = 4
[pid  5236] close(3)                    = 0
executing program
[pid  5236] write(1, "executing program\n", 18) = 18
[pid  5236] memfd_create("syzkaller", 0) = 3
[pid  5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5236] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5236] munmap(0x7fa113a00000, 138412032) = 0
[pid  5236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5236] close(3)                    = 0
[pid  5236] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5236] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5236] exit_group(0)               = ?
[pid  5236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached
, child_tidptr=0x55555d16f650) = 5237
[pid  5237] set_robust_list(0x55555d16f660, 24) = 0
[pid  5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5237] setpgid(0, 0)               = 0
[pid  5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5237] write(3, "1000", 4)         = 4
[pid  5237] close(3)                    = 0
[pid  5237] write(1, "executing program\n", 18executing program
) = 18
[pid  5237] memfd_create("syzkaller", 0) = 3
[pid  5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5237] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5237] munmap(0x7fa113a00000, 138412032) = 0
[pid  5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5237] close(3)                    = 0
[pid  5237] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5237] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5237] exit_group(0)               = ?
[pid  5237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5238 attached
, child_tidptr=0x55555d16f650) = 5238
[pid  5238] set_robust_list(0x55555d16f660, 24) = 0
[pid  5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5238] setpgid(0, 0)               = 0
[pid  5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5238] write(3, "1000", 4)         = 4
[pid  5238] close(3)                    = 0
executing program
[pid  5238] write(1, "executing program\n", 18) = 18
[pid  5238] memfd_create("syzkaller", 0) = 3
[pid  5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5238] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5238] munmap(0x7fa113a00000, 138412032) = 0
[pid  5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5238] close(3)                    = 0
[pid  5238] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5238] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5238] exit_group(0)               = ?
[pid  5238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5239 attached
, child_tidptr=0x55555d16f650) = 5239
[pid  5239] set_robust_list(0x55555d16f660, 24) = 0
[pid  5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5239] setpgid(0, 0)               = 0
[pid  5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5239] write(3, "1000", 4)         = 4
[pid  5239] close(3)                    = 0
executing program
[pid  5239] write(1, "executing program\n", 18) = 18
[pid  5239] memfd_create("syzkaller", 0) = 3
[pid  5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5239] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5239] munmap(0x7fa113a00000, 138412032) = 0
[pid  5239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5239] close(3)                    = 0
[pid  5239] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5239] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5239] exit_group(0)               = ?
[pid  5239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5240 attached
, child_tidptr=0x55555d16f650) = 5240
[pid  5240] set_robust_list(0x55555d16f660, 24) = 0
[pid  5240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5240] setpgid(0, 0)               = 0
[pid  5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5240] write(3, "1000", 4)         = 4
[pid  5240] close(3)                    = 0
[pid  5240] write(1, "executing program\n", 18executing program
) = 18
[pid  5240] memfd_create("syzkaller", 0) = 3
[pid  5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5240] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5240] munmap(0x7fa113a00000, 138412032) = 0
[pid  5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5240] close(3)                    = 0
[pid  5240] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5240] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5240] exit_group(0)               = ?
[pid  5240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5241 attached
 <unfinished ...>
[pid  5241] set_robust_list(0x55555d16f660, 24 <unfinished ...>
[pid  5222] <... clone resumed>, child_tidptr=0x55555d16f650) = 5241
[pid  5241] <... set_robust_list resumed>) = 0
[pid  5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5241] setpgid(0, 0)               = 0
[pid  5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5241] write(3, "1000", 4)         = 4
[pid  5241] close(3)                    = 0
[pid  5241] write(1, "executing program\n", 18executing program
) = 18
[pid  5241] memfd_create("syzkaller", 0) = 3
[pid  5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5241] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5241] munmap(0x7fa113a00000, 138412032) = 0
[pid  5241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5241] close(3)                    = 0
[pid  5241] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5241] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5241] exit_group(0)               = ?
[pid  5241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached
, child_tidptr=0x55555d16f650) = 5242
[pid  5242] set_robust_list(0x55555d16f660, 24) = 0
[pid  5242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5242] setpgid(0, 0)               = 0
[pid  5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5242] write(3, "1000", 4)         = 4
[pid  5242] close(3)                    = 0
executing program
[pid  5242] write(1, "executing program\n", 18) = 18
[pid  5242] memfd_create("syzkaller", 0) = 3
[pid  5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5242] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5242] munmap(0x7fa113a00000, 138412032) = 0
[pid  5242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5242] close(3)                    = 0
[pid  5242] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5242] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5242] exit_group(0)               = ?
[pid  5242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555d16f650) = 5243
./strace-static-x86_64: Process 5243 attached
[pid  5243] set_robust_list(0x55555d16f660, 24) = 0
[pid  5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5243] setpgid(0, 0)               = 0
[pid  5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5243] write(3, "1000", 4)         = 4
[pid  5243] close(3)                    = 0
executing program
[pid  5243] write(1, "executing program\n", 18) = 18
[pid  5243] memfd_create("syzkaller", 0) = 3
[pid  5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5243] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5243] munmap(0x7fa113a00000, 138412032) = 0
[pid  5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5243] close(3)                    = 0
[pid  5243] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5243] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5243] exit_group(0)               = ?
[pid  5243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5244 attached
, child_tidptr=0x55555d16f650) = 5244
[pid  5244] set_robust_list(0x55555d16f660, 24) = 0
[pid  5244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5244] setpgid(0, 0)               = 0
[pid  5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5244] write(3, "1000", 4)         = 4
[pid  5244] close(3)                    = 0
executing program
[pid  5244] write(1, "executing program\n", 18) = 18
[pid  5244] memfd_create("syzkaller", 0) = 3
[pid  5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5244] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5244] munmap(0x7fa113a00000, 138412032) = 0
[pid  5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5244] close(3)                    = 0
[pid  5244] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5244] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5244] exit_group(0)               = ?
[pid  5244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached
, child_tidptr=0x55555d16f650) = 5245
[pid  5245] set_robust_list(0x55555d16f660, 24) = 0
[pid  5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5245] setpgid(0, 0)               = 0
[pid  5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5245] write(3, "1000", 4)         = 4
[pid  5245] close(3)                    = 0
executing program
[pid  5245] write(1, "executing program\n", 18) = 18
[pid  5245] memfd_create("syzkaller", 0) = 3
[pid  5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5245] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5245] munmap(0x7fa113a00000, 138412032) = 0
[pid  5245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5245] close(3)                    = 0
[pid  5245] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5245] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5245] exit_group(0)               = ?
[pid  5245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5246 attached
, child_tidptr=0x55555d16f650) = 5246
[pid  5246] set_robust_list(0x55555d16f660, 24) = 0
[pid  5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5246] setpgid(0, 0)               = 0
[pid  5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5246] write(3, "1000", 4)         = 4
[pid  5246] close(3)                    = 0
executing program
[pid  5246] write(1, "executing program\n", 18) = 18
[pid  5246] memfd_create("syzkaller", 0) = 3
[pid  5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5246] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5246] munmap(0x7fa113a00000, 138412032) = 0
[pid  5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5246] close(3)                    = 0
[pid  5246] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5246] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5246] exit_group(0)               = ?
[pid  5246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5247 attached
, child_tidptr=0x55555d16f650) = 5247
[pid  5247] set_robust_list(0x55555d16f660, 24) = 0
[pid  5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5247] setpgid(0, 0)               = 0
[pid  5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5247] write(3, "1000", 4)         = 4
[pid  5247] close(3)                    = 0
executing program
[pid  5247] write(1, "executing program\n", 18) = 18
[pid  5247] memfd_create("syzkaller", 0) = 3
[pid  5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5247] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5247] munmap(0x7fa113a00000, 138412032) = 0
[pid  5247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5247] close(3)                    = 0
[pid  5247] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5247] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5247] exit_group(0)               = ?
[pid  5247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5248 attached
, child_tidptr=0x55555d16f650) = 5248
[pid  5248] set_robust_list(0x55555d16f660, 24) = 0
[pid  5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5248] setpgid(0, 0)               = 0
[pid  5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5248] write(3, "1000", 4)         = 4
[pid  5248] close(3)                    = 0
executing program
[pid  5248] write(1, "executing program\n", 18) = 18
[pid  5248] memfd_create("syzkaller", 0) = 3
[pid  5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5248] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5248] munmap(0x7fa113a00000, 138412032) = 0
[pid  5248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5248] close(3)                    = 0
[pid  5248] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5248] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5248] exit_group(0)               = ?
[pid  5248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached
, child_tidptr=0x55555d16f650) = 5249
[pid  5249] set_robust_list(0x55555d16f660, 24) = 0
[pid  5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5249] setpgid(0, 0)               = 0
[pid  5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5249] write(3, "1000", 4)         = 4
[pid  5249] close(3)                    = 0
[pid  5249] write(1, "executing program\n", 18executing program
) = 18
[pid  5249] memfd_create("syzkaller", 0) = 3
[pid  5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5249] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5249] munmap(0x7fa113a00000, 138412032) = 0
[pid  5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5249] close(3)                    = 0
[pid  5249] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5249] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5249] exit_group(0)               = ?
[pid  5249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555d16f650) = 5250
./strace-static-x86_64: Process 5250 attached
[pid  5250] set_robust_list(0x55555d16f660, 24) = 0
[pid  5250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5250] setpgid(0, 0)               = 0
[pid  5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5250] write(3, "1000", 4)         = 4
[pid  5250] close(3)                    = 0
[pid  5250] write(1, "executing program\n", 18executing program
) = 18
[pid  5250] memfd_create("syzkaller", 0) = 3
[pid  5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5250] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5250] munmap(0x7fa113a00000, 138412032) = 0
[pid  5250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5250] close(3)                    = 0
[pid  5250] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5250] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5250] exit_group(0)               = ?
[pid  5250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached
, child_tidptr=0x55555d16f650) = 5251
[pid  5251] set_robust_list(0x55555d16f660, 24) = 0
[pid  5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5251] setpgid(0, 0)               = 0
[pid  5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5251] write(3, "1000", 4)         = 4
[pid  5251] close(3)                    = 0
executing program
[pid  5251] write(1, "executing program\n", 18) = 18
[pid  5251] memfd_create("syzkaller", 0) = 3
[pid  5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5251] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5251] munmap(0x7fa113a00000, 138412032) = 0
[pid  5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5251] close(3)                    = 0
[pid  5251] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5251] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5251] exit_group(0)               = ?
[pid  5251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5252 attached
, child_tidptr=0x55555d16f650) = 5252
[pid  5252] set_robust_list(0x55555d16f660, 24) = 0
[pid  5252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5252] setpgid(0, 0)               = 0
[pid  5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5252] write(3, "1000", 4)         = 4
[pid  5252] close(3)                    = 0
executing program
[pid  5252] write(1, "executing program\n", 18) = 18
[pid  5252] memfd_create("syzkaller", 0) = 3
[pid  5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5252] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5252] munmap(0x7fa113a00000, 138412032) = 0
[pid  5252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5252] close(3)                    = 0
[pid  5252] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5252] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5252] exit_group(0)               = ?
[pid  5252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5253 attached
, child_tidptr=0x55555d16f650) = 5253
[pid  5253] set_robust_list(0x55555d16f660, 24) = 0
[pid  5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5253] setpgid(0, 0)               = 0
[pid  5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5253] write(3, "1000", 4)         = 4
[pid  5253] close(3)                    = 0
executing program
[pid  5253] write(1, "executing program\n", 18) = 18
[pid  5253] memfd_create("syzkaller", 0) = 3
[pid  5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5253] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5253] munmap(0x7fa113a00000, 138412032) = 0
[pid  5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5253] close(3)                    = 0
[pid  5253] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5253] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5253] exit_group(0)               = ?
[pid  5253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached
, child_tidptr=0x55555d16f650) = 5254
[pid  5254] set_robust_list(0x55555d16f660, 24) = 0
[pid  5254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5254] setpgid(0, 0)               = 0
[pid  5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5254] write(3, "1000", 4)         = 4
[pid  5254] close(3)                    = 0
[pid  5254] write(1, "executing program\n", 18executing program
) = 18
[pid  5254] memfd_create("syzkaller", 0) = 3
[pid  5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5254] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5254] munmap(0x7fa113a00000, 138412032) = 0
[pid  5254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5254] close(3)                    = 0
[pid  5254] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = -1 EISDIR (Is a directory)
[pid  5254] lsetxattr("./file1", "trusted.overlay.nlink", NULL, 0, 0) = 0
[pid  5254] exit_group(0)               = ?
[pid  5254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached
, child_tidptr=0x55555d16f650) = 5255
[pid  5255] set_robust_list(0x55555d16f660, 24) = 0
[pid  5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5255] setpgid(0, 0)               = 0
[pid  5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5255] write(3, "1000", 4)         = 4
[pid  5255] close(3)                    = 0
[pid  5255] write(1, "executing program\n", 18executing program
) = 18
[pid  5255] memfd_create("syzkaller", 0) = 3
[pid  5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa113a00000
[pid  5255] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5255] munmap(0x7fa113a00000, 138412032) = 0
[pid  5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)