./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3230654866
<...>
[ 92.229149][ T977] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.187' (ED25519) to the list of known hosts.
execve("./syz-executor3230654866", ["./syz-executor3230654866"], 0x7ffc962d2c10 /* 10 vars */) = 0
brk(NULL) = 0x555572966000
brk(0x555572966d00) = 0x555572966d00
arch_prctl(ARCH_SET_FS, 0x555572966380) = 0
set_tid_address(0x555572966650) = 5838
set_robust_list(0x555572966660, 24) = 0
rseq(0x555572966ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3230654866", 4096) = 28
getrandom("\x1f\xd8\xc0\xf2\xd2\x87\x9a\x63", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555572966d00
brk(0x555572987d00) = 0x555572987d00
brk(0x555572988000) = 0x555572988000
mprotect(0x7fa380284000, 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 5839 attached
, child_tidptr=0x555572966650) = 5839
[pid 5839] set_robust_list(0x555572966660, 24) = 0
[pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5839] setpgid(0, 0) = 0
[pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5839] write(3, "1000", 4) = 4
[pid 5839] close(3) = 0
executing program
[pid 5839] write(1, "executing program\n", 18) = 18
[pid 5839] memfd_create("syzkaller", 0) = 3
[pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5839] 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 5839] munmap(0x7fa377c00000, 138412032) = 0
[pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5839] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5839] close(3) = 0
[pid 5839] close(4) = 0
[pid 5839] mkdir("./file1", 0777) = 0
[ 94.146781][ T5839] loop0: detected capacity change from 0 to 32768
[ 94.166513][ T5839] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor323 (5839)
[ 94.193193][ T5839] BTRFS info (device loop0): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[ 94.203806][ T5839] BTRFS info (device loop0): using crc32c (crc32c-lib) checksum algorithm
[ 94.214853][ T5839] BTRFS info (device loop0): disk space caching is enabled
[ 94.222771][ T5839] BTRFS warning (device loop0): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[ 94.266417][ T5839]
[ 94.268834][ T5839] ======================================================
[ 94.275872][ T5839] WARNING: possible circular locking dependency detected
[ 94.282942][ T5839] 6.16.0-rc2-next-20250620-syzkaller #0 Not tainted
[ 94.289562][ T5839] ------------------------------------------------------
[ 94.296609][ T5839] syz-executor323/5839 is trying to acquire lock:
[ 94.303142][ T5839] ffffffff8e6e9fe8 (uuid_mutex){+.+.}-{4:4}, at: btrfs_read_chunk_tree+0xef/0x2170
[ 94.312770][ T5839]
[ 94.312770][ T5839] but task is already holding lock:
[ 94.320311][ T5839] ffff8880325c00e0 (&type->s_umount_key#41/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970
[ 94.330003][ T5839]
[ 94.330003][ T5839] which lock already depends on the new lock.
[ 94.330003][ T5839]
[ 94.340500][ T5839]
[ 94.340500][ T5839] the existing dependency chain (in reverse order) is:
[ 94.349607][ T5839]
[ 94.349607][ T5839] -> #1 (&type->s_umount_key#41/1){+.+.}-{4:4}:
[ 94.358099][ T5839] lock_acquire+0x120/0x360
[ 94.363157][ T5839] down_write_nested+0x9d/0x200
[ 94.368541][ T5839] alloc_super+0x204/0x970
[ 94.373500][ T5839] sget_fc+0x329/0xa40
[ 94.378125][ T5839] btrfs_get_tree+0x4c6/0x12d0
[ 94.383479][ T5839] vfs_get_tree+0x8f/0x2b0
[ 94.388474][ T5839] do_new_mount+0x24a/0xa40
[ 94.393604][ T5839] __se_sys_mount+0x317/0x410
[ 94.398812][ T5839] do_syscall_64+0xfa/0x3b0
[ 94.403876][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.410309][ T5839]
[ 94.410309][ T5839] -> #0 (uuid_mutex){+.+.}-{4:4}:
[ 94.417536][ T5839] validate_chain+0xb9b/0x2140
[ 94.422846][ T5839] __lock_acquire+0xab9/0xd20
[ 94.428060][ T5839] lock_acquire+0x120/0x360
[ 94.433100][ T5839] __mutex_lock+0x182/0xe80
[ 94.438136][ T5839] btrfs_read_chunk_tree+0xef/0x2170
[ 94.443981][ T5839] open_ctree+0x17f2/0x3a10
[ 94.449019][ T5839] btrfs_get_tree+0xc6f/0x12d0
[ 94.454318][ T5839] vfs_get_tree+0x8f/0x2b0
[ 94.459294][ T5839] do_new_mount+0x24a/0xa40
[ 94.464326][ T5839] __se_sys_mount+0x317/0x410
[ 94.469536][ T5839] do_syscall_64+0xfa/0x3b0
[ 94.474583][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.481009][ T5839]
[ 94.481009][ T5839] other info that might help us debug this:
[ 94.481009][ T5839]
[ 94.491252][ T5839] Possible unsafe locking scenario:
[ 94.491252][ T5839]
[ 94.498706][ T5839] CPU0 CPU1
[ 94.504077][ T5839] ---- ----
[ 94.509446][ T5839] lock(&type->s_umount_key#41/1);
[ 94.514710][ T5839] lock(uuid_mutex);
[ 94.521224][ T5839] lock(&type->s_umount_key#41/1);
[ 94.528969][ T5839] lock(uuid_mutex);
[ 94.532985][ T5839]
[ 94.532985][ T5839] *** DEADLOCK ***
[ 94.532985][ T5839]
[ 94.541565][ T5839] 1 lock held by syz-executor323/5839:
[ 94.547028][ T5839] #0: ffff8880325c00e0 (&type->s_umount_key#41/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970
[ 94.557154][ T5839]
[ 94.557154][ T5839] stack backtrace:
[ 94.563080][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: syz-executor323 Not tainted 6.16.0-rc2-next-20250620-syzkaller #0 PREEMPT(full)
[ 94.563105][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 94.563122][ T5839] Call Trace:
[ 94.563131][ T5839]
[ 94.563139][ T5839] dump_stack_lvl+0x189/0x250
[ 94.563170][ T5839] ? __pfx_dump_stack_lvl+0x10/0x10
[ 94.563194][ T5839] ? __pfx__printk+0x10/0x10
[ 94.563220][ T5839] ? print_lock_name+0xde/0x100
[ 94.563237][ T5839] print_circular_bug+0x2ee/0x310
[ 94.563254][ T5839] check_noncircular+0x134/0x160
[ 94.563281][ T5839] validate_chain+0xb9b/0x2140
[ 94.563314][ T5839] __lock_acquire+0xab9/0xd20
[ 94.563336][ T5839] ? btrfs_read_chunk_tree+0xef/0x2170
[ 94.563354][ T5839] lock_acquire+0x120/0x360
[ 94.563374][ T5839] ? btrfs_read_chunk_tree+0xef/0x2170
[ 94.563396][ T5839] __mutex_lock+0x182/0xe80
[ 94.563412][ T5839] ? btrfs_read_chunk_tree+0xef/0x2170
[ 94.563432][ T5839] ? btrfs_read_chunk_tree+0xef/0x2170
[ 94.563451][ T5839] ? __pfx___mutex_lock+0x10/0x10
[ 94.563469][ T5839] ? rcu_is_watching+0x15/0xb0
[ 94.563492][ T5839] ? trace_kmem_cache_alloc+0x1f/0xc0
[ 94.563516][ T5839] ? btrfs_read_chunk_tree+0xcd/0x2170
[ 94.563534][ T5839] btrfs_read_chunk_tree+0xef/0x2170
[ 94.563554][ T5839] ? btrfs_root_node+0xae/0x4a0
[ 94.563574][ T5839] ? btrfs_root_node+0x459/0x4a0
[ 94.563592][ T5839] ? btrfs_root_node+0xae/0x4a0
[ 94.563611][ T5839] ? __pfx_btrfs_root_node+0x10/0x10
[ 94.563632][ T5839] ? __pfx_btrfs_read_chunk_tree+0x10/0x10
[ 94.563650][ T5839] ? load_super_root+0x2b2/0x3f0
[ 94.563668][ T5839] ? __pfx_load_super_root+0x10/0x10
[ 94.563687][ T5839] ? read_extent_buffer+0x120/0x5e0
[ 94.563704][ T5839] ? open_ctree+0x17ea/0x3a10
[ 94.563722][ T5839] open_ctree+0x17f2/0x3a10
[ 94.563738][ T5839] ? bdi_register_va+0x58d/0x740
[ 94.563755][ T5839] ? open_ctree+0xa1a/0x3a10
[ 94.563777][ T5839] ? __pfx_open_ctree+0x10/0x10
[ 94.563797][ T5839] btrfs_get_tree+0xc6f/0x12d0
[ 94.563821][ T5839] vfs_get_tree+0x8f/0x2b0
[ 94.563846][ T5839] do_new_mount+0x24a/0xa40
[ 94.563863][ T5839] __se_sys_mount+0x317/0x410
[ 94.563881][ T5839] ? __pfx___se_sys_mount+0x10/0x10
[ 94.563895][ T5839] ? rcu_is_watching+0x15/0xb0
[ 94.563919][ T5839] ? __x64_sys_mount+0x20/0xc0
[ 94.563934][ T5839] do_syscall_64+0xfa/0x3b0
[ 94.563950][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 94.563964][ T5839] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.563979][ T5839] ? clear_bhb_loop+0x60/0xb0
[ 94.563996][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.564011][ T5839] RIP: 0033:0x7fa38020c2ea
[ 94.564031][ T5839] 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
[ 94.564049][ T5839] RSP: 002b:00007ffec4591a58 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[ 94.564066][ T5839] RAX: ffffffffffffffda RBX: 00007ffec4591a70 RCX: 00007fa38020c2ea
[ 94.564078][ T5839] RDX: 0000200000005100 RSI: 0000200000000000 RDI: 00007ffec4591a70
[ 94.564089][ T5839] RBP: 0000200000000000 R08: 00007ffec4591ab0 R09: 00000000000050ed
[ 94.564099][ T5839] R10: 0000000000000810 R11: 0000000000000282 R12: 0000200000005100
[ 94.564109][ T5839] R13: 00007ffec4591ab0 R14: 0000000000000003 R15: 0000000000000810
[ 94.564125][ T5839]
[ 94.896561][ T5839] BTRFS info (device loop0): rebuilding free space tree
[ 94.907905][ T5839] BTRFS info (device loop0): disabling free space tree
[pid 5839] mount("/dev/loop0", "./file1", "btrfs", MS_SYNCHRONOUS|MS_NODIRATIME, "treelog,nodatacow,max_inline=m3x9e6,space_cache,nodatasum,nobarrier,flushoncommit,noautodefrag,ref_v"...) = 0
[pid 5839] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5839] chdir("./file1") = 0
[pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5839] ioctl(4, LOOP_CLR_FD) = 0
[pid 5839] close(4) = 0
[pid 5839] exit_group(0) = ?
[pid 5839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 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 5857 attached
, child_tidptr=0x555572966650) = 5857
[pid 5857] set_robust_list(0x555572966660, 24) = 0
[pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5857] setpgid(0, 0) = 0
[pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5857] write(3, "1000", 4) = 4
[pid 5857] close(3) = 0
[pid 5857] write(1, "executing program\n", 18executing program
) = 18
[pid 5857] memfd_create("syzkaller", 0) = 3
[pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[ 94.915185][ T5839] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[ 94.925150][ T5839] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[pid 5857] 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 5857] munmap(0x7fa377c00000, 138412032) = 0
[pid 5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5857] ioctl(4, LOOP_CLR_FD) = 0
[pid 5857] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5857] close(4) = 0
[pid 5857] close(3) = 0
[pid 5857] exit_group(0) = ?
[pid 5857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=6 /* 0.06 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 5860 attached
, child_tidptr=0x555572966650) = 5860
[pid 5860] set_robust_list(0x555572966660, 24) = 0
[pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5860] setpgid(0, 0) = 0
[pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5860] write(3, "1000", 4) = 4
[pid 5860] close(3) = 0
[pid 5860] write(1, "executing program\n", 18executing program
) = 18
[pid 5860] memfd_create("syzkaller", 0) = 3
[pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5860] 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 5860] munmap(0x7fa377c00000, 138412032) = 0
[pid 5860] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5860] ioctl(4, LOOP_CLR_FD) = 0
[pid 5860] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5860] close(4) = 0
[pid 5860] close(3) = 0
[pid 5860] exit_group(0) = ?
[pid 5860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, 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 5862 attached
, child_tidptr=0x555572966650) = 5862
[pid 5862] set_robust_list(0x555572966660, 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
executing program
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=7 /* 0.07 s */, si_stime=14 /* 0.14 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 5865 attached
, child_tidptr=0x555572966650) = 5865
[pid 5865] set_robust_list(0x555572966660, 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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=2 /* 0.02 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 5867 attached
, child_tidptr=0x555572966650) = 5867
[pid 5867] set_robust_list(0x555572966660, 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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=5 /* 0.05 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 5870 attached
, child_tidptr=0x555572966650) = 5870
[pid 5870] set_robust_list(0x555572966660, 24) = 0
[pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5870] setpgid(0, 0) = 0
[pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5870] write(3, "1000", 4) = 4
[pid 5870] close(3) = 0
executing program
[pid 5870] write(1, "executing program\n", 18) = 18
[pid 5870] memfd_create("syzkaller", 0) = 3
[pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5870] 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 5870] munmap(0x7fa377c00000, 138412032) = 0
[pid 5870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5870] ioctl(4, LOOP_CLR_FD) = 0
[pid 5870] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5870] close(4) = 0
[pid 5870] close(3) = 0
[pid 5870] exit_group(0) = ?
[pid 5870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, 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 5872 attached
[pid 5872] set_robust_list(0x555572966660, 24
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5872
[pid 5872] <... set_robust_list resumed>) = 0
[pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5872] setpgid(0, 0) = 0
[pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5872] write(3, "1000", 4) = 4
[pid 5872] close(3) = 0
executing program
[pid 5872] write(1, "executing program\n", 18) = 18
[pid 5872] memfd_create("syzkaller", 0) = 3
[pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5872] 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 5872] munmap(0x7fa377c00000, 138412032) = 0
[pid 5872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5872] ioctl(4, LOOP_CLR_FD) = 0
[pid 5872] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5872] close(4) = 0
[pid 5872] close(3) = 0
[pid 5872] exit_group(0) = ?
[pid 5872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5872, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 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 5874 attached
[pid 5874] set_robust_list(0x555572966660, 24) = 0
[pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5874
[pid 5874] <... prctl resumed>) = 0
[pid 5874] setpgid(0, 0) = 0
[pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5874] write(3, "1000", 4) = 4
[pid 5874] close(3executing program
) = 0
[pid 5874] write(1, "executing program\n", 18) = 18
[pid 5874] memfd_create("syzkaller", 0) = 3
[pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5874] 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 5874] munmap(0x7fa377c00000, 138412032) = 0
[pid 5874] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5874] ioctl(4, LOOP_CLR_FD) = 0
[pid 5874] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5874] close(4) = 0
[pid 5874] close(3) = 0
[pid 5874] exit_group(0) = ?
[pid 5874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, 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 5876 attached
, child_tidptr=0x555572966650) = 5876
[pid 5876] set_robust_list(0x555572966660, 24) = 0
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=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 5879 attached
, child_tidptr=0x555572966650) = 5879
[pid 5879] set_robust_list(0x555572966660, 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", 4) = 4
[pid 5879] close(3) = 0
[pid 5879] write(1, "executing program\n", 18executing program
) = 18
[pid 5879] memfd_create("syzkaller", 0) = 3
[pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[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(0x7fa377c00000, 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=6 /* 0.06 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 5882 attached
, child_tidptr=0x555572966650) = 5882
[pid 5882] set_robust_list(0x555572966660, 24) = 0
[pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5882] setpgid(0, 0) = 0
[pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5882] write(3, "1000", 4) = 4
[pid 5882] close(3executing program
) = 0
[pid 5882] write(1, "executing program\n", 18) = 18
[pid 5882] memfd_create("syzkaller", 0) = 3
[pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5882] 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 5882] munmap(0x7fa377c00000, 138412032) = 0
[pid 5882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5882] ioctl(4, LOOP_CLR_FD) = 0
[pid 5882] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5882] close(4) = 0
[pid 5882] close(3) = 0
[pid 5882] exit_group(0) = ?
[pid 5882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, 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 5884 attached
, child_tidptr=0x555572966650) = 5884
[pid 5884] set_robust_list(0x555572966660, 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
executing program
[pid 5884] write(1, "executing program\n", 18) = 18
[pid 5884] memfd_create("syzkaller", 0) = 3
[pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[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(0x7fa377c00000, 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=6 /* 0.06 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 5887 attached
[pid 5887] set_robust_list(0x555572966660, 24) = 0
[pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5887] setpgid(0, 0) = 0
[pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5887
[pid 5887] <... openat resumed>) = 3
[pid 5887] write(3, "1000", 4) = 4
[pid 5887] close(3) = 0
[pid 5887] write(1, "executing program\n", 18executing program
) = 18
[pid 5887] memfd_create("syzkaller", 0) = 3
[pid 5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5887] 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 5887] munmap(0x7fa377c00000, 138412032) = 0
[pid 5887] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5887] ioctl(4, LOOP_CLR_FD) = 0
[pid 5887] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5887] close(4) = 0
[pid 5887] close(3) = 0
[pid 5887] exit_group(0) = ?
[pid 5887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=2 /* 0.02 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 5889 attached
[pid 5889] set_robust_list(0x555572966660, 24) = 0
[pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5889
[pid 5889] <... prctl resumed>) = 0
[pid 5889] setpgid(0, 0) = 0
[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
executing program
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=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 5891 attached
[pid 5891] set_robust_list(0x555572966660, 24
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5891
[pid 5891] <... set_robust_list resumed>) = 0
[pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5891] setpgid(0, 0) = 0
[pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5891] write(3, "1000", 4) = 4
[pid 5891] close(3executing program
) = 0
[pid 5891] write(1, "executing program\n", 18) = 18
[pid 5891] memfd_create("syzkaller", 0) = 3
[pid 5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5891] 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 5891] munmap(0x7fa377c00000, 138412032) = 0
[pid 5891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5891] ioctl(4, LOOP_CLR_FD) = 0
[pid 5891] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5891] close(4) = 0
[pid 5891] close(3) = 0
[pid 5891] exit_group(0) = ?
[pid 5891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=13 /* 0.13 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 5893 attached
[pid 5893] set_robust_list(0x555572966660, 24) = 0
[pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5893
[pid 5893] <... prctl resumed>) = 0
[pid 5893] setpgid(0, 0) = 0
[pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5893] write(3, "1000", 4) = 4
[pid 5893] close(3) = 0
executing program
[pid 5893] write(1, "executing program\n", 18) = 18
[pid 5893] memfd_create("syzkaller", 0) = 3
[pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5893] 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 5893] munmap(0x7fa377c00000, 138412032) = 0
[pid 5893] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5893] ioctl(4, LOOP_CLR_FD) = 0
[pid 5893] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5893] close(4) = 0
[pid 5893] close(3) = 0
[pid 5893] exit_group(0) = ?
[pid 5893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, 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 5895 attached
[pid 5895] set_robust_list(0x555572966660, 24) = 0
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5895
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} ---
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 5897 attached
, child_tidptr=0x555572966650) = 5897
[pid 5897] set_robust_list(0x555572966660, 24) = 0
[pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5897] setpgid(0, 0) = 0
[pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5897] write(3, "1000", 4) = 4
[pid 5897] close(3) = 0
[pid 5897] write(1, "executing program\n", 18) = 18
[pid 5897] memfd_create("syzkaller", 0) = 3
[pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5897] 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 5897] munmap(0x7fa377c00000, 138412032) = 0
[pid 5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5897] ioctl(4, LOOP_CLR_FD) = 0
[pid 5897] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5897] close(4) = 0
[pid 5897] close(3) = 0
[pid 5897] exit_group(0) = ?
[pid 5897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=5 /* 0.05 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 5899 attached
, child_tidptr=0x555572966650) = 5899
[pid 5899] set_robust_list(0x555572966660, 24) = 0
[pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5899] setpgid(0, 0) = 0
[pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5899] write(3, "1000", 4) = 4
[pid 5899] close(3) = 0
[pid 5899] write(1, "executing program\n", 18executing program
) = 18
[pid 5899] memfd_create("syzkaller", 0) = 3
[pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5899] 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 5899] munmap(0x7fa377c00000, 138412032) = 0
[pid 5899] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5899] ioctl(4, LOOP_CLR_FD) = 0
[pid 5899] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5899] close(4) = 0
[pid 5899] close(3) = 0
[pid 5899] exit_group(0) = ?
[pid 5899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 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 5901 attached
, child_tidptr=0x555572966650) = 5901
[pid 5901] set_robust_list(0x555572966660, 24) = 0
[pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5901] setpgid(0, 0) = 0
[pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5901] write(3, "1000", 4) = 4
[pid 5901] close(3) = 0
[pid 5901] write(1, "executing program\n", 18executing program
) = 18
[pid 5901] memfd_create("syzkaller", 0) = 3
[pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5901] 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 5901] munmap(0x7fa377c00000, 138412032) = 0
[pid 5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5901] ioctl(4, LOOP_CLR_FD) = 0
[pid 5901] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5901] close(4) = 0
[pid 5901] close(3) = 0
[pid 5901] exit_group(0) = ?
[pid 5901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, 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 5903 attached
, child_tidptr=0x555572966650) = 5903
[pid 5903] set_robust_list(0x555572966660, 24) = 0
[pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5903] setpgid(0, 0) = 0
[pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5903] write(3, "1000", 4) = 4
[pid 5903] close(3) = 0
executing program
[pid 5903] write(1, "executing program\n", 18) = 18
[pid 5903] memfd_create("syzkaller", 0) = 3
[pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5903] 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 5903] munmap(0x7fa377c00000, 138412032) = 0
[pid 5903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5903] ioctl(4, LOOP_CLR_FD) = 0
[pid 5903] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5903] close(4) = 0
[pid 5903] close(3) = 0
[pid 5903] exit_group(0) = ?
[pid 5903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=8 /* 0.08 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 5906 attached
[pid 5906] set_robust_list(0x555572966660, 24) = 0
[pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5906
[pid 5906] <... prctl resumed>) = 0
[pid 5906] setpgid(0, 0) = 0
[pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5906] write(3, "1000", 4) = 4
[pid 5906] close(3) = 0
executing program
[pid 5906] write(1, "executing program\n", 18) = 18
[pid 5906] memfd_create("syzkaller", 0) = 3
[pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5906] 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 5906] munmap(0x7fa377c00000, 138412032) = 0
[pid 5906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5906] ioctl(4, LOOP_CLR_FD) = 0
[pid 5906] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5906] close(4) = 0
[pid 5906] close(3) = 0
[pid 5906] exit_group(0) = ?
[pid 5906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, 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, child_tidptr=0x555572966650) = 5909
./strace-static-x86_64: Process 5909 attached
[pid 5909] set_robust_list(0x555572966660, 24) = 0
[pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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(3executing program
) = 0
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=17 /* 0.17 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
[pid 5911] set_robust_list(0x555572966660, 24) = 0
[pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5911
[pid 5911] <... prctl resumed>) = 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
executing program
[pid 5911] close(3) = 0
[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) = 0x7fa377c00000
[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(0x7fa377c00000, 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=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 5913 attached
[pid 5913] set_robust_list(0x555572966660, 24
[pid 5838] <... clone resumed>, child_tidptr=0x555572966650) = 5913
[pid 5913] <... set_robust_list resumed>) = 0
[pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5913] setpgid(0, 0) = 0
[pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5913] write(3, "1000", 4) = 4
[pid 5913] close(3) = 0
executing program
[pid 5913] write(1, "executing program\n", 18) = 18
[pid 5913] memfd_create("syzkaller", 0) = 3
[pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000
[pid 5913] 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 5913] munmap(0x7fa377c00000, 138412032) = 0
[pid 5913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5913] ioctl(4, LOOP_CLR_FD) = 0
[pid 5913] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5913] close(4) = 0
[pid 5913] close(3) = 0
[pid 5913] exit_group(0) = ?
[pid 5913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, 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) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555572966650) = 5915
./strace-static-x86_64: Process 5915 attached
[pid 5915] set_robust_list(0x555572966660, 24) = 0
[pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5915] setpgid(0, 0) = 0
[pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5915] write(3, "1000", 4) = 4
[pid 5915] close(3executing program
) = 0
[pid 5915] write(1, "executing program\n", 18) = 18
[pid 5915] memfd_create("syzkaller", 0) = 3
[pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa377c00000