./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor123270430

<...>
Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts.
execve("./syz-executor123270430", ["./syz-executor123270430"], 0x7ffda32af5e0 /* 10 vars */) = 0
brk(NULL)                               = 0x555567b54000
brk(0x555567b54d00)                     = 0x555567b54d00
arch_prctl(ARCH_SET_FS, 0x555567b54380) = 0
set_tid_address(0x555567b54650)         = 5842
set_robust_list(0x555567b54660, 24)     = 0
rseq(0x555567b54ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor123270430", 4096) = 27
getrandom("\x7a\x9b\x93\xb4\x8e\x6e\xe6\xdf", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555567b54d00
brk(0x555567b75d00)                     = 0x555567b75d00
brk(0x555567b76000)                     = 0x555567b76000
mprotect(0x7fda6319c000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
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 5843 attached
 <unfinished ...>
[pid  5843] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5843
[pid  5843] <... set_robust_list resumed>) = 0
[pid  5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5843] setpgid(0, 0)               = 0
[pid  5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5843] write(3, "1000", 4)         = 4
[pid  5843] close(3)                    = 0
[pid  5843] write(1, "executing program\n", 18executing program
) = 18
[pid  5843] memfd_create("syzkaller", 0) = 3
[pid  5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5843] 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"..., 16777216) = 16777216
[pid  5843] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5843] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5843] close(3)                    = 0
[pid  5843] close(4)                    = 0
[pid  5843] mkdir("./file0", 0777)      = 0
[   89.425436][ T5843] loop0: detected capacity change from 0 to 32768
[   89.458670][ T5843] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor123 (5843)
[   89.482754][ T5843] BTRFS info (device loop0): first mount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
[   89.501665][ T5843] BTRFS info (device loop0): using sha256 (sha256-x86_64) checksum algorithm
[   89.511469][ T5843] BTRFS info (device loop0): disk space caching is enabled
[   89.518821][ T5843] BTRFS warning (device loop0): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[   89.562615][ T5843] 
[   89.564983][ T5843] ======================================================
[   89.572016][ T5843] WARNING: possible circular locking dependency detected
[   89.579077][ T5843] 6.16.0-rc2-next-20250620-syzkaller #0 Not tainted
[   89.585675][ T5843] ------------------------------------------------------
[   89.592698][ T5843] syz-executor123/5843 is trying to acquire lock:
[   89.599134][ T5843] ffffffff8e6e9fe8 (uuid_mutex){+.+.}-{4:4}, at: btrfs_read_chunk_tree+0xef/0x2170
[   89.608499][ T5843] 
[   89.608499][ T5843] but task is already holding lock:
[   89.615881][ T5843] ffff8880328ea0e0 (&type->s_umount_key#41/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970
[   89.625589][ T5843] 
[   89.625589][ T5843] which lock already depends on the new lock.
[   89.625589][ T5843] 
[   89.636010][ T5843] 
[   89.636010][ T5843] the existing dependency chain (in reverse order) is:
[   89.645036][ T5843] 
[   89.645036][ T5843] -> #1 (&type->s_umount_key#41/1){+.+.}-{4:4}:
[   89.653500][ T5843]        lock_acquire+0x120/0x360
[   89.658534][ T5843]        down_write_nested+0x9d/0x200
[   89.663904][ T5843]        alloc_super+0x204/0x970
[   89.668843][ T5843]        sget_fc+0x329/0xa40
[   89.673435][ T5843]        btrfs_get_tree+0x4c6/0x12d0
[   89.678727][ T5843]        vfs_get_tree+0x8f/0x2b0
[   89.683665][ T5843]        do_new_mount+0x24a/0xa40
[   89.688685][ T5843]        __se_sys_mount+0x317/0x410
[   89.693903][ T5843]        do_syscall_64+0xfa/0x3b0
[   89.698953][ T5843]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.705366][ T5843] 
[   89.705366][ T5843] -> #0 (uuid_mutex){+.+.}-{4:4}:
[   89.712584][ T5843]        validate_chain+0xb9b/0x2140
[   89.717877][ T5843]        __lock_acquire+0xab9/0xd20
[   89.723092][ T5843]        lock_acquire+0x120/0x360
[   89.728119][ T5843]        __mutex_lock+0x182/0xe80
[   89.733145][ T5843]        btrfs_read_chunk_tree+0xef/0x2170
[   89.738950][ T5843]        open_ctree+0x17f2/0x3a10
[   89.743973][ T5843]        btrfs_get_tree+0xc6f/0x12d0
[   89.749270][ T5843]        vfs_get_tree+0x8f/0x2b0
[   89.754214][ T5843]        do_new_mount+0x24a/0xa40
[   89.759256][ T5843]        __se_sys_mount+0x317/0x410
[   89.764453][ T5843]        do_syscall_64+0xfa/0x3b0
[   89.769472][ T5843]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.775881][ T5843] 
[   89.775881][ T5843] other info that might help us debug this:
[   89.775881][ T5843] 
[   89.786101][ T5843]  Possible unsafe locking scenario:
[   89.786101][ T5843] 
[   89.793543][ T5843]        CPU0                    CPU1
[   89.798905][ T5843]        ----                    ----
[   89.804282][ T5843]   lock(&type->s_umount_key#41/1);
[   89.809496][ T5843]                                lock(uuid_mutex);
[   89.816016][ T5843]                                lock(&type->s_umount_key#41/1);
[   89.823744][ T5843]   lock(uuid_mutex);
[   89.827726][ T5843] 
[   89.827726][ T5843]  *** DEADLOCK ***
[   89.827726][ T5843] 
[   89.835864][ T5843] 1 lock held by syz-executor123/5843:
[   89.841314][ T5843]  #0: ffff8880328ea0e0 (&type->s_umount_key#41/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970
[   89.851430][ T5843] 
[   89.851430][ T5843] stack backtrace:
[   89.857327][ T5843] CPU: 1 UID: 0 PID: 5843 Comm: syz-executor123 Not tainted 6.16.0-rc2-next-20250620-syzkaller #0 PREEMPT(full) 
[   89.857345][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   89.857361][ T5843] Call Trace:
[   89.857369][ T5843]  <TASK>
[   89.857377][ T5843]  dump_stack_lvl+0x189/0x250
[   89.857404][ T5843]  ? __pfx_dump_stack_lvl+0x10/0x10
[   89.857426][ T5843]  ? __pfx__printk+0x10/0x10
[   89.857443][ T5843]  ? print_lock_name+0xde/0x100
[   89.857459][ T5843]  print_circular_bug+0x2ee/0x310
[   89.857486][ T5843]  check_noncircular+0x134/0x160
[   89.857511][ T5843]  validate_chain+0xb9b/0x2140
[   89.857540][ T5843]  __lock_acquire+0xab9/0xd20
[   89.857561][ T5843]  ? btrfs_read_chunk_tree+0xef/0x2170
[   89.857577][ T5843]  lock_acquire+0x120/0x360
[   89.857594][ T5843]  ? btrfs_read_chunk_tree+0xef/0x2170
[   89.857632][ T5843]  __mutex_lock+0x182/0xe80
[   89.857648][ T5843]  ? btrfs_read_chunk_tree+0xef/0x2170
[   89.857667][ T5843]  ? btrfs_read_chunk_tree+0xef/0x2170
[   89.857685][ T5843]  ? __pfx___mutex_lock+0x10/0x10
[   89.857707][ T5843]  ? rcu_is_watching+0x15/0xb0
[   89.857729][ T5843]  ? trace_kmem_cache_alloc+0x1f/0xc0
[   89.857750][ T5843]  ? btrfs_read_chunk_tree+0xcd/0x2170
[   89.857768][ T5843]  btrfs_read_chunk_tree+0xef/0x2170
[   89.857787][ T5843]  ? btrfs_root_node+0xae/0x4a0
[   89.857807][ T5843]  ? btrfs_root_node+0x459/0x4a0
[   89.857824][ T5843]  ? btrfs_root_node+0xae/0x4a0
[   89.857843][ T5843]  ? __pfx_btrfs_root_node+0x10/0x10
[   89.857863][ T5843]  ? __pfx_btrfs_read_chunk_tree+0x10/0x10
[   89.857880][ T5843]  ? load_super_root+0x2b2/0x3f0
[   89.857897][ T5843]  ? __pfx_load_super_root+0x10/0x10
[   89.857916][ T5843]  ? read_extent_buffer+0x120/0x5e0
[   89.857932][ T5843]  ? open_ctree+0x17ea/0x3a10
[   89.857951][ T5843]  open_ctree+0x17f2/0x3a10
[   89.857967][ T5843]  ? bdi_register_va+0x58d/0x740
[   89.857983][ T5843]  ? open_ctree+0xa1a/0x3a10
[   89.858004][ T5843]  ? __pfx_open_ctree+0x10/0x10
[   89.858024][ T5843]  btrfs_get_tree+0xc6f/0x12d0
[   89.858046][ T5843]  vfs_get_tree+0x8f/0x2b0
[   89.858069][ T5843]  do_new_mount+0x24a/0xa40
[   89.858086][ T5843]  __se_sys_mount+0x317/0x410
[   89.858103][ T5843]  ? __pfx___se_sys_mount+0x10/0x10
[   89.858116][ T5843]  ? rcu_is_watching+0x15/0xb0
[   89.858140][ T5843]  ? __x64_sys_mount+0x20/0xc0
[   89.858155][ T5843]  do_syscall_64+0xfa/0x3b0
[   89.858170][ T5843]  ? lockdep_hardirqs_on+0x9c/0x150
[   89.858183][ T5843]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.858197][ T5843]  ? clear_bhb_loop+0x60/0xb0
[   89.858213][ T5843]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.858228][ T5843] RIP: 0033:0x7fda63124f3a
[   89.858245][ T5843] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 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
[   89.858262][ T5843] RSP: 002b:00007ffd76f19cb8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   89.858277][ T5843] RAX: ffffffffffffffda RBX: 00007ffd76f19cd0 RCX: 00007fda63124f3a
[   89.858288][ T5843] RDX: 00002000000004c0 RSI: 00002000000015c0 RDI: 00007ffd76f19cd0
[   89.858299][ T5843] RBP: 00002000000004c0 R08: 00007ffd76f19d10 R09: 0000000000005598
[pid  5843] mount("/dev/loop0", "./file0", "btrfs", MS_LAZYTIME, "\x63\x6c\x65\x61\x72\x5f\x63\x61\x63\x68\x65\x2c\x75\x73\x65\x72\x5f\x73\x75\x62\x76\x6f\x6c\x5f\x72\x6d\x5f\x61\x6c\x6c\x6f\x77\x65\x64\x2c\x6e\x6f\x64\x69\x73\x63\x61\x72\x64\x2c\x6e\x6f\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x63\x6f\x6d\x70\x72\x65\x73\x73\x2d\x66\x6f\x72\x63\x65\x2c\x6d\x61\x78\x5f\x69\x6e\x6c\x69\x6e\x65\x3d\x07\x32\x38\x2d\x32"...) = 0
[pid  5843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5843] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5843] close(4)                    = 0
[pid  5843] exit_group(0)               = ?
[pid  5843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=27 /* 0.27 s */} ---
[   89.858309][ T5843] R10: 0000000002000000 R11: 0000000000000282 R12: 00002000000015c0
[   89.858318][ T5843] R13: 00007ffd76f19d10 R14: 0000000000000003 R15: 0000000002000000
[   89.858334][ T5843]  </TASK>
[   90.187416][ T5843] BTRFS info (device loop0): rebuilding free space tree
[   90.198353][ T5843] BTRFS info (device loop0): disabling free space tree
[   90.205478][ T5843] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
restart_syscall(<... resuming interrupted clone ...>executing program
) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5862 attached
, child_tidptr=0x555567b54650) = 5862
[pid  5862] set_robust_list(0x555567b54660, 24) = 0
[pid  5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5862] setpgid(0, 0)               = 0
[pid  5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5862] write(3, "1000", 4)         = 4
[pid  5862] close(3)                    = 0
[pid  5862] write(1, "executing program\n", 18) = 18
[pid  5862] memfd_create("syzkaller", 0) = 3
[pid  5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[   90.215153][ T5843] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[pid  5862] 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"..., 16777216) = 16777216
[pid  5862] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5862] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5862] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5862] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5862] close(4)                    = 0
[pid  5862] close(3)                    = 0
[pid  5862] exit_group(0)               = ?
[pid  5862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5862, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached
, child_tidptr=0x555567b54650) = 5865
[pid  5865] set_robust_list(0x555567b54660, 24) = 0
[pid  5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5865] setpgid(0, 0)               = 0
[pid  5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5865] write(3, "1000", 4)         = 4
[pid  5865] close(3)                    = 0
executing program
[pid  5865] write(1, "executing program\n", 18) = 18
[pid  5865] memfd_create("syzkaller", 0) = 3
[pid  5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5865] 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"..., 16777216) = 16777216
[pid  5865] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5865] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5865] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5865] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5865] close(4)                    = 0
[pid  5865] close(3)                    = 0
[pid  5865] exit_group(0)               = ?
[pid  5865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5867 attached
, child_tidptr=0x555567b54650) = 5867
[pid  5867] set_robust_list(0x555567b54660, 24) = 0
[pid  5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5867] setpgid(0, 0)               = 0
[pid  5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5867] write(3, "1000", 4)         = 4
[pid  5867] close(3)                    = 0
executing program
[pid  5867] write(1, "executing program\n", 18) = 18
[pid  5867] memfd_create("syzkaller", 0) = 3
[pid  5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5867] 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"..., 16777216) = 16777216
[pid  5867] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5867] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5867] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5867] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5867] close(4)                    = 0
[pid  5867] close(3)                    = 0
[pid  5867] exit_group(0)               = ?
[pid  5867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, 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)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached
 <unfinished ...>
[pid  5869] set_robust_list(0x555567b54660, 24) = 0
[pid  5869] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5869
[pid  5869] <... prctl resumed>)        = 0
[pid  5869] setpgid(0, 0)               = 0
[pid  5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5869] write(3, "1000", 4)         = 4
[pid  5869] close(3)                    = 0
executing program
[pid  5869] write(1, "executing program\n", 18) = 18
[pid  5869] memfd_create("syzkaller", 0) = 3
[pid  5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5869] 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"..., 16777216) = 16777216
[pid  5869] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5869] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5869] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5869] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5869] close(4)                    = 0
[pid  5869] close(3)                    = 0
[pid  5869] exit_group(0)               = ?
[pid  5869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5871 attached
 <unfinished ...>
[pid  5871] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5871
[pid  5871] <... set_robust_list resumed>) = 0
[pid  5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5871] setpgid(0, 0)               = 0
[pid  5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5871] write(3, "1000", 4)         = 4
[pid  5871] close(3)                    = 0
executing program
[pid  5871] write(1, "executing program\n", 18) = 18
[pid  5871] memfd_create("syzkaller", 0) = 3
[pid  5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[   91.740450][    T9] cfg80211: failed to load regulatory.db
[pid  5871] 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"..., 16777216) = 16777216
[pid  5871] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5871] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5871] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5871] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5871] close(4)                    = 0
[pid  5871] close(3)                    = 0
[pid  5871] exit_group(0)               = ?
[pid  5871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5873 attached
, child_tidptr=0x555567b54650) = 5873
[pid  5873] set_robust_list(0x555567b54660, 24) = 0
[pid  5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5873] setpgid(0, 0)               = 0
[pid  5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5873] write(3, "1000", 4)         = 4
[pid  5873] close(3)                    = 0
[pid  5873] write(1, "executing program\n", 18executing program
) = 18
[pid  5873] memfd_create("syzkaller", 0) = 3
[pid  5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5873] 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"..., 16777216) = 16777216
[pid  5873] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5873] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5873] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5873] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5873] close(4)                    = 0
[pid  5873] close(3)                    = 0
[pid  5873] exit_group(0)               = ?
[pid  5873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5876 attached
 <unfinished ...>
[pid  5876] set_robust_list(0x555567b54660, 24) = 0
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5876
[pid  5876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5876] setpgid(0, 0)               = 0
[pid  5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5876] write(3, "1000", 4)         = 4
[pid  5876] close(3)                    = 0
executing program
[pid  5876] write(1, "executing program\n", 18) = 18
[pid  5876] memfd_create("syzkaller", 0) = 3
[pid  5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5876] 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"..., 16777216) = 16777216
[pid  5876] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5876] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5876] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5876] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5876] close(4)                    = 0
[pid  5876] close(3)                    = 0
[pid  5876] exit_group(0)               = ?
[pid  5876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5879 attached
, child_tidptr=0x555567b54650) = 5879
[pid  5879] set_robust_list(0x555567b54660, 24) = 0
[pid  5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5879] setpgid(0, 0)               = 0
[pid  5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5879] write(3, "1000", 4executing program
)         = 4
[pid  5879] close(3)                    = 0
[pid  5879] write(1, "executing program\n", 18) = 18
[pid  5879] memfd_create("syzkaller", 0) = 3
[pid  5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5879] 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"..., 16777216) = 16777216
[pid  5879] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5879] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5879] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5879] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5879] close(4)                    = 0
[pid  5879] close(3)                    = 0
[pid  5879] exit_group(0)               = ?
[pid  5879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5881 attached
 <unfinished ...>
[pid  5881] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5881
[pid  5881] <... set_robust_list resumed>) = 0
[pid  5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5881] setpgid(0, 0)               = 0
[pid  5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5881] write(3, "1000", 4)         = 4
executing program
[pid  5881] close(3)                    = 0
[pid  5881] write(1, "executing program\n", 18) = 18
[pid  5881] memfd_create("syzkaller", 0) = 3
[pid  5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5881] 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"..., 16777216) = 16777216
[pid  5881] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5881] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5881] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5881] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5881] close(4)                    = 0
[pid  5881] close(3)                    = 0
[pid  5881] exit_group(0)               = ?
[pid  5881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5884 attached
, child_tidptr=0x555567b54650) = 5884
[pid  5884] set_robust_list(0x555567b54660, 24) = 0
[pid  5884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5884] setpgid(0, 0)               = 0
[pid  5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5884] write(3, "1000", 4)         = 4
[pid  5884] close(3)                    = 0
[pid  5884] write(1, "executing program\n", 18executing program
) = 18
[pid  5884] memfd_create("syzkaller", 0) = 3
[pid  5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5884] 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"..., 16777216) = 16777216
[pid  5884] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5884] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5884] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5884] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5884] close(4)                    = 0
[pid  5884] close(3)                    = 0
[pid  5884] exit_group(0)               = ?
[pid  5884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5886 attached
, child_tidptr=0x555567b54650) = 5886
[pid  5886] set_robust_list(0x555567b54660, 24) = 0
[pid  5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5886] setpgid(0, 0)               = 0
[pid  5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5886] write(3, "1000", 4)         = 4
[pid  5886] close(3executing program
)                    = 0
[pid  5886] write(1, "executing program\n", 18) = 18
[pid  5886] memfd_create("syzkaller", 0) = 3
[pid  5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5886] 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"..., 16777216) = 16777216
[pid  5886] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5886] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5886] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5886] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5886] close(4)                    = 0
[pid  5886] close(3)                    = 0
[pid  5886] exit_group(0)               = ?
[pid  5886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5889 attached
 <unfinished ...>
[pid  5889] set_robust_list(0x555567b54660, 24) = 0
[pid  5889] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5889
[pid  5889] <... prctl resumed>)        = 0
[pid  5889] setpgid(0, 0)               = 0
executing program
[pid  5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5889] write(3, "1000", 4)         = 4
[pid  5889] close(3)                    = 0
[pid  5889] write(1, "executing program\n", 18) = 18
[pid  5889] memfd_create("syzkaller", 0) = 3
[pid  5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5889] 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"..., 16777216) = 16777216
[pid  5889] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5889] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5889] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5889] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5889] close(4)                    = 0
[pid  5889] close(3)                    = 0
[pid  5889] exit_group(0)               = ?
[pid  5889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5892 attached
, child_tidptr=0x555567b54650) = 5892
[pid  5892] set_robust_list(0x555567b54660, 24) = 0
[pid  5892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5892] setpgid(0, 0)               = 0
[pid  5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5892] write(3, "1000", 4)         = 4
[pid  5892] close(3)                    = 0
executing program
[pid  5892] write(1, "executing program\n", 18) = 18
[pid  5892] memfd_create("syzkaller", 0) = 3
[pid  5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5892] 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"..., 16777216) = 16777216
[pid  5892] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5892] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5892] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5892] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5892] close(4)                    = 0
[pid  5892] close(3)                    = 0
[pid  5892] exit_group(0)               = ?
[pid  5892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555567b54650) = 5895
./strace-static-x86_64: Process 5895 attached
[pid  5895] set_robust_list(0x555567b54660, 24) = 0
[pid  5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5895] setpgid(0, 0)               = 0
[pid  5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5895] write(3, "1000", 4)         = 4
[pid  5895] close(3)                    = 0
executing program
[pid  5895] write(1, "executing program\n", 18) = 18
[pid  5895] memfd_create("syzkaller", 0) = 3
[pid  5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5895] 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"..., 16777216) = 16777216
[pid  5895] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5895] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5895] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5895] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5895] close(4)                    = 0
[pid  5895] close(3)                    = 0
[pid  5895] exit_group(0)               = ?
[pid  5895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5898 attached
 <unfinished ...>
[pid  5898] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5898
[pid  5898] <... set_robust_list resumed>) = 0
[pid  5898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5898] setpgid(0, 0)               = 0
[pid  5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5898] write(3, "1000", 4)         = 4
[pid  5898] close(3)                    = 0
[pid  5898] write(1, "executing program\n", 18executing program
) = 18
[pid  5898] memfd_create("syzkaller", 0) = 3
[pid  5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5898] 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"..., 16777216) = 16777216
[pid  5898] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5898] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5898] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5898] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5898] close(4)                    = 0
[pid  5898] close(3)                    = 0
[pid  5898] exit_group(0)               = ?
[pid  5898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5900 attached
 <unfinished ...>
[pid  5900] set_robust_list(0x555567b54660, 24) = 0
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5900
[pid  5900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5900] setpgid(0, 0)               = 0
[pid  5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5900] write(3, "1000", 4)         = 4
[pid  5900] close(3)                    = 0
executing program
[pid  5900] write(1, "executing program\n", 18) = 18
[pid  5900] memfd_create("syzkaller", 0) = 3
[pid  5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5900] 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"..., 16777216) = 16777216
[pid  5900] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5900] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5900] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5900] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5900] close(4)                    = 0
[pid  5900] close(3)                    = 0
[pid  5900] exit_group(0)               = ?
[pid  5900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5902 attached
, child_tidptr=0x555567b54650) = 5902
[pid  5902] set_robust_list(0x555567b54660, 24) = 0
[pid  5902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5902] setpgid(0, 0)               = 0
[pid  5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5902] write(3, "1000", 4)         = 4
[pid  5902] close(3)                    = 0
executing program
[pid  5902] write(1, "executing program\n", 18) = 18
[pid  5902] memfd_create("syzkaller", 0) = 3
[pid  5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5902] 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"..., 16777216) = 16777216
[pid  5902] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5902] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5902] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5902] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5902] close(4)                    = 0
[pid  5902] close(3)                    = 0
[pid  5902] exit_group(0)               = ?
[pid  5902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5904 attached
, child_tidptr=0x555567b54650) = 5904
[pid  5904] set_robust_list(0x555567b54660, 24) = 0
[pid  5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5904] setpgid(0, 0)               = 0
[pid  5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5904] write(3, "1000", 4)         = 4
[pid  5904] close(3executing program
)                    = 0
[pid  5904] write(1, "executing program\n", 18) = 18
[pid  5904] memfd_create("syzkaller", 0) = 3
[pid  5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5904] 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"..., 16777216) = 16777216
[pid  5904] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5904] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5904] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5904] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5904] close(4)                    = 0
[pid  5904] close(3)                    = 0
[pid  5904] exit_group(0)               = ?
[pid  5904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=16 /* 0.16 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5907 attached
, child_tidptr=0x555567b54650) = 5907
[pid  5907] set_robust_list(0x555567b54660, 24) = 0
[pid  5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5907] setpgid(0, 0)               = 0
[pid  5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5907] write(3, "1000", 4)         = 4
[pid  5907] close(3)                    = 0
executing program
[pid  5907] write(1, "executing program\n", 18) = 18
[pid  5907] memfd_create("syzkaller", 0) = 3
[pid  5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5907] 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"..., 16777216) = 16777216
[pid  5907] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5907] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5907] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5907] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5907] close(4)                    = 0
[pid  5907] close(3)                    = 0
[pid  5907] exit_group(0)               = ?
[pid  5907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5909 attached
 <unfinished ...>
[pid  5909] set_robust_list(0x555567b54660, 24) = 0
[pid  5909] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5909
[pid  5909] <... prctl resumed>)        = 0
[pid  5909] setpgid(0, 0)               = 0
[pid  5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5909] write(3, "1000", 4)         = 4
[pid  5909] close(3)                    = 0
executing program
[pid  5909] write(1, "executing program\n", 18) = 18
[pid  5909] memfd_create("syzkaller", 0) = 3
[pid  5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5909] 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"..., 16777216) = 16777216
[pid  5909] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5909] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5909] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5909] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5909] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5909] close(4)                    = 0
[pid  5909] close(3)                    = 0
[pid  5909] exit_group(0)               = ?
[pid  5909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5911 attached
 <unfinished ...>
[pid  5911] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5911
[pid  5911] <... set_robust_list resumed>) = 0
[pid  5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5911] setpgid(0, 0)               = 0
[pid  5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5911] write(3, "1000", 4)         = 4
[pid  5911] close(3)                    = 0
executing program
[pid  5911] write(1, "executing program\n", 18) = 18
[pid  5911] memfd_create("syzkaller", 0) = 3
[pid  5911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5911] 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"..., 16777216) = 16777216
[pid  5911] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5911] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5911] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5911] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5911] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5911] close(4)                    = 0
[pid  5911] close(3)                    = 0
[pid  5911] exit_group(0)               = ?
[pid  5911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=16 /* 0.16 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5914 attached
 <unfinished ...>
[pid  5914] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5914
[pid  5914] <... set_robust_list resumed>) = 0
[pid  5914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5914] setpgid(0, 0)               = 0
[pid  5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5914] write(3, "1000", 4)         = 4
[pid  5914] close(3)                    = 0
executing program
[pid  5914] write(1, "executing program\n", 18) = 18
[pid  5914] memfd_create("syzkaller", 0) = 3
[pid  5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5914] 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"..., 16777216) = 16777216
[pid  5914] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5914] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5914] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5914] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5914] close(4)                    = 0
[pid  5914] close(3)                    = 0
[pid  5914] exit_group(0)               = ?
[pid  5914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5917 attached
, child_tidptr=0x555567b54650) = 5917
[pid  5917] set_robust_list(0x555567b54660, 24) = 0
[pid  5917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5917] setpgid(0, 0)               = 0
[pid  5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5917] write(3, "1000", 4)         = 4
executing program
[pid  5917] close(3)                    = 0
[pid  5917] write(1, "executing program\n", 18) = 18
[pid  5917] memfd_create("syzkaller", 0) = 3
[pid  5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5917] 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"..., 16777216) = 16777216
[pid  5917] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5917] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5917] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5917] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5917] close(4)                    = 0
[pid  5917] close(3)                    = 0
[pid  5917] exit_group(0)               = ?
[pid  5917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5920 attached
, child_tidptr=0x555567b54650) = 5920
[pid  5920] set_robust_list(0x555567b54660, 24) = 0
[pid  5920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5920] setpgid(0, 0)               = 0
[pid  5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5920] write(3, "1000", 4)         = 4
[pid  5920] close(3executing program
)                    = 0
[pid  5920] write(1, "executing program\n", 18) = 18
[pid  5920] memfd_create("syzkaller", 0) = 3
[pid  5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5920] 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"..., 16777216) = 16777216
[pid  5920] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5920] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5920] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5920] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5920] close(4)                    = 0
[pid  5920] close(3)                    = 0
[pid  5920] exit_group(0)               = ?
[pid  5920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5922 attached
, child_tidptr=0x555567b54650) = 5922
[pid  5922] set_robust_list(0x555567b54660, 24) = 0
[pid  5922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5922] setpgid(0, 0)               = 0
[pid  5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5922] write(3, "1000", 4)         = 4
[pid  5922] close(3)                    = 0
[pid  5922] write(1, "executing program\n", 18executing program
) = 18
[pid  5922] memfd_create("syzkaller", 0) = 3
[pid  5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5922] 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"..., 16777216) = 16777216
[pid  5922] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5922] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5922] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5922] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5922] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5922] close(4)                    = 0
[pid  5922] close(3)                    = 0
[pid  5922] exit_group(0)               = ?
[pid  5922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = 0
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5924 attached
 <unfinished ...>
[pid  5924] set_robust_list(0x555567b54660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x555567b54650) = 5924
[pid  5924] <... set_robust_list resumed>) = 0
[pid  5924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5924] setpgid(0, 0)               = 0
[pid  5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5924] write(3, "1000", 4)         = 4
[pid  5924] close(3)                    = 0
executing program
[pid  5924] write(1, "executing program\n", 18) = 18
[pid  5924] memfd_create("syzkaller", 0) = 3
[pid  5924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fda5ac00000
[pid  5924] 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"..., 16777216) = 16777216
[pid  5924] munmap(0x7fda5ac00000, 138412032) = 0
[pid  5924] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5924] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5924] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5924] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  5924] close(4)                    = 0