ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor750825293 <...> Warning: Permanently added '10.128.1.38' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor750825293", ["ci2-upstream-fs/syz-executor750825293"], 0x7fff01bc1040 /* 10 vars */) = 0 brk(NULL) = 0x555569481000 brk(0x555569481d80) = 0x555569481d80 arch_prctl(ARCH_SET_FS, 0x555569481400) = 0 set_tid_address(0x5555694816d0) = 5646 set_robust_list(0x5555694816e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor750825293", 4096) = 43 getrandom("\x84\x6d\x92\x1a\x9c\xfd\xa8\x1e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569481d80 brk(0x5555694a2d80) = 0x5555694a2d80 brk(0x5555694a3000) = 0x5555694a3000 mprotect(0x7f8964f26000, 20480, 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_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5647 attached , child_tidptr=0x5555694816d0) = 5647 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5647] setpgid(0, 0) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5647] write(3, "1000", 4) = 4 [pid 5647] close(3) = 0 [pid 5647] write(1, "executing program\n", 18) = 18 executing program [pid 5647] memfd_create("syzkaller", 0) = 3 [pid 5647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5647] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5647] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5647] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5647] close(3) = 0 [pid 5647] close(4) = 0 [pid 5647] mkdir("./file1", 0777) = 0 [ 111.624595][ T5647] loop0: detected capacity change from 0 to 32768 [pid 5647] mount("/dev/loop0", "./file1", "ocfs2", 0, "heartbeat=none,") = 0 [pid 5647] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5647] chdir("./file1") = 0 [pid 5647] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5647] ioctl(4, LOOP_CLR_FD) = 0 [pid 5647] close(4) = 0 [ 111.734092][ T5647] JBD2: Ignoring recovery information on journal [ 111.776131][ T5647] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [pid 5647] creat("./bus", 000) = 4 [pid 5647] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5647] write(5, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [ 111.857591][ T5647] [ 111.859936][ T5647] ====================================================== [ 111.866935][ T5647] WARNING: possible circular locking dependency detected [ 111.873954][ T5647] syzkaller #0 Not tainted [ 111.878344][ T5647] ------------------------------------------------------ [ 111.885339][ T5647] syz-executor750/5647 is trying to acquire lock: [ 111.891743][ T5647] ffff88802c6e8818 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_duplicate_inline_data+0x16a/0x570 [ 111.901836][ T5647] [ 111.901836][ T5647] but task is already holding lock: [ 111.909178][ T5647] ffff88804239ec50 (&oi->ip_alloc_sem/1){+.+.}-{4:4}, at: ocfs2_remap_file_range+0x342/0x700 [ 111.919346][ T5647] [ 111.919346][ T5647] which lock already depends on the new lock. [ 111.919346][ T5647] [ 111.929727][ T5647] [ 111.929727][ T5647] the existing dependency chain (in reverse order) is: [ 111.938718][ T5647] [ 111.938718][ T5647] -> #2 (&oi->ip_alloc_sem/1){+.+.}-{4:4}: [ 111.946686][ T5647] down_write_nested+0x39/0x50 [ 111.951973][ T5647] ocfs2_xattr_set_handle+0x3fc/0x820 [ 111.957847][ T5647] ocfs2_init_security_set+0x151/0x210 [ 111.963809][ T5647] ocfs2_mknod+0x13dd/0x2190 [ 111.968912][ T5647] ocfs2_create+0x195/0x460 [ 111.973925][ T5647] lookup_open+0x103d/0x1b00 [ 111.979023][ T5647] path_openat+0x711/0x2100 [ 111.984029][ T5647] do_file_open+0x23e/0x4a0 [ 111.989043][ T5647] do_sys_openat2+0x115/0x200 [ 111.994220][ T5647] __x64_sys_creat+0x8f/0xc0 [ 111.999307][ T5647] do_syscall_64+0x16a/0x530 [ 112.004397][ T5647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.010788][ T5647] [ 112.010788][ T5647] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 112.019276][ T5647] down_read+0x92/0x200 [ 112.023938][ T5647] ocfs2_start_trans+0x3aa/0x700 [ 112.029373][ T5647] ocfs2_reserve_suballoc_bits+0x7b7/0x4850 [ 112.035764][ T5647] ocfs2_reserve_new_metadata_blocks+0x415/0x9a0 [ 112.042609][ T5647] ocfs2_mknod+0xe79/0x2190 [ 112.047613][ T5647] ocfs2_create+0x195/0x460 [ 112.052624][ T5647] lookup_open+0x103d/0x1b00 [ 112.057712][ T5647] path_openat+0x711/0x2100 [ 112.062711][ T5647] do_file_open+0x23e/0x4a0 [ 112.067710][ T5647] do_sys_openat2+0x115/0x200 [ 112.072886][ T5647] __x64_sys_creat+0x8f/0xc0 [ 112.077977][ T5647] do_syscall_64+0x16a/0x530 [ 112.083069][ T5647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.089477][ T5647] [ 112.089477][ T5647] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 112.096929][ T5647] __lock_acquire+0x164c/0x2de0 [ 112.102280][ T5647] lock_acquire+0x115/0x350 [ 112.107285][ T5647] ocfs2_start_trans+0x2a7/0x700 [ 112.112721][ T5647] ocfs2_duplicate_inline_data+0x16a/0x570 [ 112.119029][ T5647] ocfs2_reflink_remap_blocks+0x4aa/0x1ab0 [ 112.125357][ T5647] ocfs2_remap_file_range+0x457/0x700 [ 112.131248][ T5647] vfs_copy_file_range+0xe39/0x1430 [ 112.136947][ T5647] __se_sys_copy_file_range+0x2fb/0x480 [ 112.142990][ T5647] do_syscall_64+0x16a/0x530 [ 112.148080][ T5647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.154470][ T5647] [ 112.154470][ T5647] other info that might help us debug this: [ 112.154470][ T5647] [ 112.164675][ T5647] Chain exists of: [ 112.164675][ T5647] sb_internal#2 --> &journal->j_trans_barrier --> &oi->ip_alloc_sem/1 [ 112.164675][ T5647] [ 112.178728][ T5647] Possible unsafe locking scenario: [ 112.178728][ T5647] [ 112.186155][ T5647] CPU0 CPU1 [ 112.191503][ T5647] ---- ---- [ 112.196854][ T5647] lock(&oi->ip_alloc_sem/1); [ 112.201598][ T5647] lock(&journal->j_trans_barrier); [ 112.209400][ T5647] lock(&oi->ip_alloc_sem/1); [ 112.216662][ T5647] rlock(sb_internal#2); [ 112.220976][ T5647] [ 112.220976][ T5647] *** DEADLOCK *** [ 112.220976][ T5647] [ 112.229116][ T5647] locks held by syz-executor750/5647: 5, on CPU#0: [ 112.235600][ T5647] #0: ffff88802c6e8528 (sb_writers#8){.+.+}-{0:0}, at: vfs_copy_file_range+0xa29/0x1430 [ 112.245408][ T5647] #1: ffff888042395f40 (&sb->s_type->i_mutex_key#17){+.+.}-{4:4}, at: lock_two_nondirectories+0xe7/0x180 [ 112.256715][ T5647] #2: ffff88804239f000 (&sb->s_type->i_mutex_key#17/4){+.+.}-{4:4}, at: ocfs2_reflink_inodes_lock+0x11a/0xc20 [ 112.268463][ T5647] #3: ffff888042395b90 (&oi->ip_alloc_sem#2){++++}-{4:4}, at: ocfs2_remap_file_range+0x31e/0x700 [ 112.279073][ T5647] #4: ffff88804239ec50 (&oi->ip_alloc_sem/1){+.+.}-{4:4}, at: ocfs2_remap_file_range+0x342/0x700 [ 112.289671][ T5647] [ 112.289671][ T5647] stack backtrace: [ 112.295566][ T5647] CPU: 0 UID: 0 PID: 5647 Comm: syz-executor750 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 112.305795][ T5647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 112.315874][ T5647] Call Trace: [ 112.319146][ T5647] [ 112.322059][ T5647] dump_stack_lvl+0xe8/0x150 [ 112.326641][ T5647] print_circular_bug+0x2e2/0x300 [ 112.331684][ T5647] check_noncircular+0x12f/0x150 [ 112.336603][ T5647] __lock_acquire+0x164c/0x2de0 [ 112.341436][ T5647] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 112.347230][ T5647] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 112.353032][ T5647] ? rt_mutex_slowunlock+0x4ee/0xa30 [ 112.358303][ T5647] lock_acquire+0x115/0x350 [ 112.362790][ T5647] ? ocfs2_duplicate_inline_data+0x16a/0x570 [ 112.368754][ T5647] ocfs2_start_trans+0x2a7/0x700 [ 112.373678][ T5647] ? ocfs2_duplicate_inline_data+0x16a/0x570 [ 112.379648][ T5647] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 112.385092][ T5647] ? rcu_is_watching+0x16/0xb0 [ 112.389870][ T5647] ocfs2_duplicate_inline_data+0x16a/0x570 [ 112.395672][ T5647] ? rcu_is_watching+0x16/0xb0 [ 112.400421][ T5647] ? lock_release+0x4b/0x3c0 [ 112.404998][ T5647] ? __pfx_ocfs2_duplicate_inline_data+0x10/0x10 [ 112.411306][ T5647] ? is_bpf_text_address+0x292/0x2b0 [ 112.416591][ T5647] ? is_bpf_text_address+0x26/0x2b0 [ 112.421774][ T5647] ocfs2_reflink_remap_blocks+0x4aa/0x1ab0 [ 112.427563][ T5647] ? unwind_get_return_address+0x4d/0x90 [ 112.433199][ T5647] ? arch_stack_walk+0xfb/0x150 [ 112.438053][ T5647] ? check_path+0x21/0x40 [ 112.442364][ T5647] ? __pfx_ocfs2_reflink_remap_blocks+0x10/0x10 [ 112.448586][ T5647] ? __lock_acquire+0x747/0x2de0 [ 112.453508][ T5647] ? add_lock_to_list+0xc7/0x100 [ 112.458434][ T5647] ? do_raw_spin_lock+0x12b/0x2f0 [ 112.463470][ T5647] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 112.469263][ T5647] ? rwbase_write_lock+0x5ad/0x780 [ 112.474358][ T5647] ocfs2_remap_file_range+0x457/0x700 [ 112.479739][ T5647] ? __pfx_ocfs2_remap_file_range+0x10/0x10 [ 112.485641][ T5647] ? lock_acquire+0x115/0x350 [ 112.490308][ T5647] ? __pfx_ocfs2_remap_file_range+0x10/0x10 [ 112.496184][ T5647] vfs_copy_file_range+0xe39/0x1430 [ 112.501370][ T5647] ? __pfx_vfs_copy_file_range+0x10/0x10 [ 112.506988][ T5647] __se_sys_copy_file_range+0x2fb/0x480 [ 112.512518][ T5647] ? __pfx___se_sys_copy_file_range+0x10/0x10 [ 112.518567][ T5647] ? __x64_sys_copy_file_range+0x21/0xf0 [ 112.524194][ T5647] do_syscall_64+0x16a/0x530 [ 112.528799][ T5647] ? trace_irq_disable+0x3b/0x140 [ 112.533814][ T5647] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.539870][ T5647] ? clear_bhb_loop+0x70/0xc0 [ 112.544545][ T5647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.550420][ T5647] RIP: 0033:0x7f8964e96a09 [ 112.554834][ T5647] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 112.574419][ T5647] RSP: 002b:00007ffe866575d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 [ 112.582860][ T5647] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8964e96a09 [ 112.590815][ T5647] RDX: 0000000000000004 RSI: 0000200000004d40 RDI: 0000000000000005 [ 112.598768][ T5647] RBP: 0000000000000001 R08: fffffffffffffff8 R09: 0000000000000000 [pid 5647] copy_file_range(5, [0], 4, NULL, 18446744073709551608, 0) = 80 [pid 5647] exit_group(0) = ? [pid 5647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5650 attached , child_tidptr=0x5555694816d0) = 5650 [pid 5650] set_robust_list(0x5555694816e0, 24) = 0 [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5650] setpgid(0, 0) = 0 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5650] write(3, "1000", 4) = 4 [pid 5650] close(3) = 0 executing program [pid 5650] write(1, "executing program\n", 18) = 18 [pid 5650] memfd_create("syzkaller", 0) = 3 [pid 5650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [ 112.606720][ T5647] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe86657610 [ 112.614671][ T5647] R13: 0000000000000002 R14: 431bde82d7b634db R15: 00007f8964ef604b [ 112.622652][ T5647] [pid 5650] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5650] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5650] close(3) = 0 [pid 5650] creat("./bus", 000) = 3 [pid 5650] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5650] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5650] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5650] exit_group(0) = ? [pid 5650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5650, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5651 attached , child_tidptr=0x5555694816d0) = 5651 [pid 5651] set_robust_list(0x5555694816e0, 24) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] setpgid(0, 0) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] write(1, "executing program\n", 18) = 18 executing program [pid 5651] memfd_create("syzkaller", 0) = 3 [pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5651] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5651] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5651] close(3) = 0 [pid 5651] creat("./bus", 000) = 3 [pid 5651] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5651] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5651] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5651] exit_group(0) = ? [pid 5651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5652 ci2-upstream-fs/strace-static-x86_64: Process 5652 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5652] set_robust_list(0x5555694816e0, 24) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5652] setpgid(0, 0) = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5652] write(3, "1000", 4) = 4 [pid 5652] close(3) = 0 [pid 5652] write(1, "executing program\n", 18) = 18 executing program [pid 5652] memfd_create("syzkaller", 0) = 3 [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5652] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5652] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5652] close(3) = 0 [pid 5652] creat("./bus", 000) = 3 [pid 5652] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5652] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5652] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5652] exit_group(0) = ? [pid 5652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5654 attached [pid 5654] set_robust_list(0x5555694816e0, 24) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5654] setpgid(0, 0 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5654 [pid 5654] <... setpgid resumed>) = 0 [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] write(3, "1000", 4) = 4 [pid 5654] close(3) = 0 [pid 5654] write(1, "executing program\n", 18) = 18 executing program [pid 5654] memfd_create("syzkaller", 0) = 3 [pid 5654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5654] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5654] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5654] close(3) = 0 [pid 5654] creat("./bus", 000) = 3 [pid 5654] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5654] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5654] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5654] exit_group(0) = ? [pid 5654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5655 attached [pid 5655] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5655 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5655] setpgid(0, 0) = 0 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5655] write(3, "1000", 4) = 4 [pid 5655] close(3) = 0 [pid 5655] write(1, "executing program\n", 18) = 18 executing program [pid 5655] memfd_create("syzkaller", 0) = 3 [pid 5655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5655] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5655] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5655] close(3) = 0 [pid 5655] creat("./bus", 000) = 3 [pid 5655] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5655] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5655] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5655] exit_group(0) = ? [pid 5655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5656 attached , child_tidptr=0x5555694816d0) = 5656 [pid 5656] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5656] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5656] setpgid(0, 0) = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5656] write(3, "1000", 4) = 4 [pid 5656] close(3) = 0 executing program [pid 5656] write(1, "executing program\n", 18) = 18 [pid 5656] memfd_create("syzkaller", 0) = 3 [pid 5656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5656] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5656] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5656] close(3) = 0 [pid 5656] creat("./bus", 000) = 3 [pid 5656] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5656] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5656] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5656] exit_group(0) = ? [pid 5656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5656, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5658 attached , child_tidptr=0x5555694816d0) = 5658 [pid 5658] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5658] setpgid(0, 0) = 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5658] write(3, "1000", 4) = 4 [pid 5658] close(3) = 0 [pid 5658] write(1, "executing program\n", 18) = 18 executing program [pid 5658] memfd_create("syzkaller", 0) = 3 [pid 5658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5658] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5658] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5658] close(3) = 0 [pid 5658] creat("./bus", 000) = 3 [pid 5658] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5658] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5658] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5658] exit_group(0) = ? [pid 5658] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5659 attached [pid 5659] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5659 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5659] setpgid(0, 0) = 0 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5659] write(3, "1000", 4) = 4 [pid 5659] close(3) = 0 [pid 5659] write(1, "executing program\n", 18) = 18 executing program [pid 5659] memfd_create("syzkaller", 0) = 3 [pid 5659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5659] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5659] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5659] close(3) = 0 [pid 5659] creat("./bus", 000) = 3 [pid 5659] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5659] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5659] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5659] exit_group(0) = ? [pid 5659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5660 ci2-upstream-fs/strace-static-x86_64: Process 5660 attached [pid 5660] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5660] setpgid(0, 0) = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5660] write(3, "1000", 4) = 4 [pid 5660] close(3) = 0 [pid 5660] write(1, "executing program\n", 18) = 18 executing program [pid 5660] memfd_create("syzkaller", 0) = 3 [pid 5660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5660] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5660] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5660] close(3) = 0 [pid 5660] creat("./bus", 000) = 3 [pid 5660] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5660] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5660] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5660] exit_group(0) = ? [pid 5660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5660, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5661 attached [pid 5661] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5661 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] setpgid(0, 0) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5661] write(3, "1000", 4) = 4 [pid 5661] close(3) = 0 [pid 5661] write(1, "executing program\n", 18) = 18 executing program [pid 5661] memfd_create("syzkaller", 0) = 3 [pid 5661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5661] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5661] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5661] close(3) = 0 [pid 5661] creat("./bus", 000) = 3 [pid 5661] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5661] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5661] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5661] exit_group(0) = ? [pid 5661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5662 attached , child_tidptr=0x5555694816d0) = 5662 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5662] setpgid(0, 0) = 0 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5662] write(3, "1000", 4) = 4 [pid 5662] close(3) = 0 executing program [pid 5662] write(1, "executing program\n", 18) = 18 [pid 5662] memfd_create("syzkaller", 0) = 3 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5662] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5662] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5662] close(3) = 0 [pid 5662] creat("./bus", 000) = 3 [pid 5662] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5662] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5662] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5662] exit_group(0) = ? [pid 5662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5662, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5663 attached , child_tidptr=0x5555694816d0) = 5663 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5663] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] <... set_robust_list resumed>) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5663] setpgid(0, 0) = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5663] write(3, "1000", 4) = 4 [pid 5663] close(3) = 0 [pid 5663] write(1, "executing program\n", 18) = 18 executing program [pid 5663] memfd_create("syzkaller", 0) = 3 [pid 5663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5663] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5663] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5663] close(3) = 0 [pid 5663] creat("./bus", 000) = 3 [pid 5663] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5663] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5663] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5663] exit_group(0) = ? [pid 5663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5665 attached , child_tidptr=0x5555694816d0) = 5665 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5665] setpgid(0, 0) = 0 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5665] write(3, "1000", 4) = 4 [pid 5665] close(3) = 0 executing program [pid 5665] write(1, "executing program\n", 18) = 18 [pid 5665] memfd_create("syzkaller", 0) = 3 [pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5665] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5665] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5665] close(3) = 0 [pid 5665] creat("./bus", 000) = 3 [pid 5665] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5665] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5665] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5665] exit_group(0) = ? [pid 5665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5666 attached , child_tidptr=0x5555694816d0) = 5666 [pid 5666] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5666] setpgid(0, 0) = 0 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5666] write(3, "1000", 4) = 4 [pid 5666] close(3) = 0 [pid 5666] write(1, "executing program\n", 18) = 18 executing program [pid 5666] memfd_create("syzkaller", 0) = 3 [pid 5666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5666] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5666] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5666] close(3) = 0 [pid 5666] creat("./bus", 000) = 3 [pid 5666] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5666] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5666] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5666] exit_group(0) = ? [pid 5666] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5666, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5667 attached , child_tidptr=0x5555694816d0) = 5667 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5667] set_robust_list(0x5555694816e0, 24) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5667] setpgid(0, 0) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5667] write(3, "1000", 4) = 4 [pid 5667] close(3) = 0 [pid 5667] write(1, "executing program\n", 18) = 18 executing program [pid 5667] memfd_create("syzkaller", 0) = 3 [pid 5667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5667] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5667] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5667] close(3) = 0 [pid 5667] creat("./bus", 000) = 3 [pid 5667] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5667] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5667] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5667] exit_group(0) = ? [pid 5667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5668 attached , child_tidptr=0x5555694816d0) = 5668 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5668] setpgid(0, 0) = 0 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5668] write(3, "1000", 4) = 4 [pid 5668] close(3) = 0 [pid 5668] write(1, "executing program\n", 18) = 18 executing program [pid 5668] memfd_create("syzkaller", 0) = 3 [pid 5668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5668] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5668] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5668] close(3) = 0 [pid 5668] creat("./bus", 000) = 3 [pid 5668] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5668] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5668] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5668] exit_group(0) = ? [pid 5668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5668, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5669 attached [pid 5669] set_robust_list(0x5555694816e0, 24) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5669 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5669] setpgid(0, 0) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5669] write(3, "1000", 4) = 4 [pid 5669] close(3) = 0 [pid 5669] write(1, "executing program\n", 18) = 18 executing program [pid 5669] memfd_create("syzkaller", 0) = 3 [pid 5669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5669] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5669] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5669] close(3) = 0 [pid 5669] creat("./bus", 000) = 3 [pid 5669] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5669] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5669] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5669] exit_group(0) = ? [pid 5669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5670 attached [pid 5670] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5670 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5670] setpgid(0, 0) = 0 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5670] write(3, "1000", 4) = 4 [pid 5670] close(3) = 0 [pid 5670] write(1, "executing program\n", 18) = 18 executing program [pid 5670] memfd_create("syzkaller", 0) = 3 [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5670] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5670] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5670] close(3) = 0 [pid 5670] creat("./bus", 000) = 3 [pid 5670] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5670] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5670] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5670] exit_group(0) = ? [pid 5670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5670, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5672 attached , child_tidptr=0x5555694816d0) = 5672 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5672] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5672] setpgid(0, 0) = 0 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5672] write(3, "1000", 4) = 4 [pid 5672] close(3) = 0 [pid 5672] write(1, "executing program\n", 18) = 18 executing program [pid 5672] memfd_create("syzkaller", 0) = 3 [pid 5672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5672] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5672] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5672] close(3) = 0 [pid 5672] creat("./bus", 000) = 3 [pid 5672] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5672] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5672] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5672] exit_group(0) = ? [pid 5672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5673 attached [pid 5673] set_robust_list(0x5555694816e0, 24) = 0 [pid 5673] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5673 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5673] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5673] setpgid(0, 0) = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5673] write(3, "1000", 4) = 4 [pid 5673] close(3) = 0 [pid 5673] write(1, "executing program\n", 18) = 18 executing program [pid 5673] memfd_create("syzkaller", 0) = 3 [pid 5673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5673] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5673] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5673] close(3) = 0 [pid 5673] creat("./bus", 000) = 3 [pid 5673] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5673] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5673] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5673] exit_group(0) = ? [pid 5673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5675 attached [pid 5675] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5675 [pid 5675] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5675] setpgid(0, 0) = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5675] write(3, "1000", 4) = 4 [pid 5675] close(3) = 0 [pid 5675] write(1, "executing program\n", 18) = 18 executing program [pid 5675] memfd_create("syzkaller", 0) = 3 [pid 5675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5675] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5675] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5675] close(3) = 0 [pid 5675] creat("./bus", 000) = 3 [pid 5675] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5675] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5675] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5675] exit_group(0) = ? [pid 5675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5677 attached [pid 5677] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5677 [pid 5677] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5677] setpgid(0, 0) = 0 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5677] write(3, "1000", 4) = 4 [pid 5677] close(3) = 0 [pid 5677] write(1, "executing program\n", 18) = 18 executing program [pid 5677] memfd_create("syzkaller", 0) = 3 [pid 5677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5677] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5677] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5677] close(3) = 0 [pid 5677] creat("./bus", 000) = 3 [pid 5677] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5677] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5677] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5677] exit_group(0) = ? [pid 5677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5678 attached [pid 5678] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5678 [pid 5678] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5678] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5678] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5678] setpgid(0, 0) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5678] write(3, "1000", 4) = 4 [pid 5678] close(3) = 0 [pid 5678] write(1, "executing program\n", 18) = 18 [pid 5678] memfd_create("syzkaller", 0) = 3 executing program [pid 5678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5678] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5678] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5678] close(3) = 0 [pid 5678] creat("./bus", 000) = 3 [pid 5678] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5678] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5678] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5678] exit_group(0) = ? [pid 5678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5678, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5679 attached , child_tidptr=0x5555694816d0) = 5679 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5679] set_robust_list(0x5555694816e0, 24) = 0 [pid 5679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5679] setpgid(0, 0) = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5679] write(3, "1000", 4) = 4 [pid 5679] close(3) = 0 [pid 5679] write(1, "executing program\n", 18) = 18 executing program [pid 5679] memfd_create("syzkaller", 0) = 3 [pid 5679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5679] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5679] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5679] close(3) = 0 [pid 5679] creat("./bus", 000) = 3 [pid 5679] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5679] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5679] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5679] exit_group(0) = ? [pid 5679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5680 attached , child_tidptr=0x5555694816d0) = 5680 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5680] set_robust_list(0x5555694816e0, 24) = 0 [pid 5680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5680] setpgid(0, 0) = 0 [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5680] write(3, "1000", 4) = 4 [pid 5680] close(3) = 0 executing program [pid 5680] write(1, "executing program\n", 18) = 18 [pid 5680] memfd_create("syzkaller", 0) = 3 [pid 5680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5680] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5680] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5680] close(3) = 0 [pid 5680] creat("./bus", 000) = 3 [pid 5680] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5680] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5680] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5680] exit_group(0) = ? [pid 5680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5680, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5681 rt_sigprocmask(SIG_SETMASK, []ci2-upstream-fs/strace-static-x86_64: Process 5681 attached , NULL, 8) = 0 [pid 5681] set_robust_list(0x5555694816e0, 24) = 0 [pid 5681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5681] setpgid(0, 0) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] write(3, "1000", 4) = 4 [pid 5681] close(3) = 0 [pid 5681] write(1, "executing program\n", 18) = 18 executing program [pid 5681] memfd_create("syzkaller", 0) = 3 [pid 5681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5681] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5681] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5681] close(3) = 0 [pid 5681] creat("./bus", 000) = 3 [pid 5681] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5681] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5681] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5681] exit_group(0) = ? [pid 5681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5683 attached , child_tidptr=0x5555694816d0) = 5683 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5683] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5683] <... set_robust_list resumed>) = 0 [pid 5683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5683] setpgid(0, 0) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5683] write(3, "1000", 4) = 4 [pid 5683] close(3) = 0 [pid 5683] write(1, "executing program\n", 18) = 18 executing program [pid 5683] memfd_create("syzkaller", 0) = 3 [pid 5683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5683] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5683] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5683] close(3) = 0 [pid 5683] creat("./bus", 000) = 3 [pid 5683] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5683] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5683] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5683] exit_group(0) = ? [pid 5683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5684 attached , child_tidptr=0x5555694816d0) = 5684 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5684] set_robust_list(0x5555694816e0, 24) = 0 [pid 5684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5684] setpgid(0, 0) = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5684] write(3, "1000", 4) = 4 [pid 5684] close(3) = 0 [pid 5684] write(1, "executing program\n", 18) = 18 executing program [pid 5684] memfd_create("syzkaller", 0) = 3 [pid 5684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5684] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5684] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5684] close(3) = 0 [pid 5684] creat("./bus", 000) = 3 [pid 5684] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5684] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5684] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5684] exit_group(0) = ? [pid 5684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5684, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5685 attached [pid 5685] set_robust_list(0x5555694816e0, 24) = 0 [pid 5685] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5685 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5685] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5685] setpgid(0, 0) = 0 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5685] write(3, "1000", 4) = 4 [pid 5685] close(3) = 0 [pid 5685] write(1, "executing program\n", 18) = 18 executing program [pid 5685] memfd_create("syzkaller", 0) = 3 [pid 5685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5685] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5685] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5685] close(3) = 0 [pid 5685] creat("./bus", 000) = 3 [pid 5685] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5685] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5685] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5685] exit_group(0) = ? [pid 5685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5686 attached , child_tidptr=0x5555694816d0) = 5686 [pid 5686] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5686] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5686] setpgid(0, 0) = 0 [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5686] write(3, "1000", 4) = 4 [pid 5686] close(3) = 0 [pid 5686] write(1, "executing program\n", 18) = 18 executing program [pid 5686] memfd_create("syzkaller", 0) = 3 [pid 5686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5686] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5686] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5686] close(3) = 0 [pid 5686] creat("./bus", 000) = 3 [pid 5686] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5686] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5686] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5686] exit_group(0) = ? [pid 5686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5686, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5687 attached , child_tidptr=0x5555694816d0) = 5687 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5687] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5687] setpgid(0, 0) = 0 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5687] write(3, "1000", 4) = 4 [pid 5687] close(3) = 0 [pid 5687] write(1, "executing program\n", 18) = 18 executing program [pid 5687] memfd_create("syzkaller", 0) = 3 [pid 5687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5687] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5687] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5687] close(3) = 0 [pid 5687] creat("./bus", 000) = 3 [pid 5687] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5687] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5687] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5687] exit_group(0) = ? [pid 5687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5688 attached , child_tidptr=0x5555694816d0) = 5688 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5688] set_robust_list(0x5555694816e0, 24) = 0 [pid 5688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5688] setpgid(0, 0) = 0 [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5688] write(3, "1000", 4) = 4 [pid 5688] close(3) = 0 [pid 5688] write(1, "executing program\n", 18) = 18 executing program [pid 5688] memfd_create("syzkaller", 0) = 3 [pid 5688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5688] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5688] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5688] close(3) = 0 [pid 5688] creat("./bus", 000) = 3 [pid 5688] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5688] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5688] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5688] exit_group(0) = ? [pid 5688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5688, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5689 attached , child_tidptr=0x5555694816d0) = 5689 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5689] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5689] <... set_robust_list resumed>) = 0 [pid 5689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5689] setpgid(0, 0) = 0 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5689] write(3, "1000", 4) = 4 [pid 5689] close(3) = 0 executing program [pid 5689] write(1, "executing program\n", 18) = 18 [pid 5689] memfd_create("syzkaller", 0) = 3 [pid 5689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5689] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5689] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5689] close(3) = 0 [pid 5689] creat("./bus", 000) = 3 [pid 5689] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5689] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5689] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5689] exit_group(0) = ? [pid 5689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5690 attached , child_tidptr=0x5555694816d0) = 5690 [pid 5690] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5690] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5690] setpgid(0, 0) = 0 [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5690] write(3, "1000", 4) = 4 [pid 5690] close(3) = 0 executing program [pid 5690] write(1, "executing program\n", 18) = 18 [pid 5690] memfd_create("syzkaller", 0) = 3 [pid 5690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5690] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5690] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5690] close(3) = 0 [pid 5690] creat("./bus", 000) = 3 [pid 5690] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5690] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5690] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5690] exit_group(0) = ? [pid 5690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5690, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5691 attached , child_tidptr=0x5555694816d0) = 5691 [pid 5691] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5691] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5691] setpgid(0, 0) = 0 [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5691] write(3, "1000", 4) = 4 [pid 5691] close(3) = 0 [pid 5691] write(1, "executing program\n", 18) = 18 executing program [pid 5691] memfd_create("syzkaller", 0) = 3 [pid 5691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5691] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5691] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5691] close(3) = 0 [pid 5691] creat("./bus", 000) = 3 [pid 5691] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5691] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5691] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5691] exit_group(0) = ? [pid 5691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5692 ci2-upstream-fs/strace-static-x86_64: Process 5692 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5692] set_robust_list(0x5555694816e0, 24) = 0 [pid 5692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5692] setpgid(0, 0) = 0 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5692] write(3, "1000", 4) = 4 [pid 5692] close(3) = 0 executing program [pid 5692] write(1, "executing program\n", 18) = 18 [pid 5692] memfd_create("syzkaller", 0) = 3 [pid 5692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5692] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5692] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5692] close(3) = 0 [pid 5692] creat("./bus", 000) = 3 [pid 5692] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5692] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5692] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5692] exit_group(0) = ? [pid 5692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5692, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5693 ci2-upstream-fs/strace-static-x86_64: Process 5693 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5693] set_robust_list(0x5555694816e0, 24) = 0 [pid 5693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5693] setpgid(0, 0) = 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5693] write(3, "1000", 4) = 4 [pid 5693] close(3) = 0 [pid 5693] write(1, "executing program\n", 18) = 18 [pid 5693] memfd_create("syzkaller", 0) = 3 executing program [pid 5693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5693] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5693] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5693] close(3) = 0 [pid 5693] creat("./bus", 000) = 3 [pid 5693] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5693] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5693] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5693] exit_group(0) = ? [pid 5693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5694 attached , child_tidptr=0x5555694816d0) = 5694 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5694] set_robust_list(0x5555694816e0, 24) = 0 [pid 5694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5694] setpgid(0, 0) = 0 [pid 5694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5694] write(3, "1000", 4) = 4 [pid 5694] close(3) = 0 [pid 5694] write(1, "executing program\n", 18) = 18 executing program [pid 5694] memfd_create("syzkaller", 0) = 3 [pid 5694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5694] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5694] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5694] close(3) = 0 [pid 5694] creat("./bus", 000) = 3 [pid 5694] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5694] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5694] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5694] exit_group(0) = ? [pid 5694] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5694, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5695 attached , child_tidptr=0x5555694816d0) = 5695 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5695] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5695] setpgid(0, 0) = 0 [pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5695] write(3, "1000", 4) = 4 [pid 5695] close(3) = 0 [pid 5695] write(1, "executing program\n", 18) = 18 [pid 5695] memfd_create("syzkaller", 0) = 3 executing program [pid 5695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5695] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5695] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5695] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5695] close(3) = 0 [pid 5695] creat("./bus", 000) = 3 [pid 5695] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5695] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5695] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5695] exit_group(0) = ? [pid 5695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5696 attached , child_tidptr=0x5555694816d0) = 5696 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5696] set_robust_list(0x5555694816e0, 24) = 0 [pid 5696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5696] setpgid(0, 0) = 0 [pid 5696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5696] write(3, "1000", 4) = 4 [pid 5696] close(3) = 0 executing program [pid 5696] write(1, "executing program\n", 18) = 18 [pid 5696] memfd_create("syzkaller", 0) = 3 [pid 5696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5696] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5696] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5696] close(3) = 0 [pid 5696] creat("./bus", 000) = 3 [pid 5696] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5696] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5696] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5696] exit_group(0) = ? [pid 5696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5696, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5697 attached , child_tidptr=0x5555694816d0) = 5697 [pid 5697] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5697] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5697] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5697] setpgid(0, 0) = 0 [pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5697] write(3, "1000", 4) = 4 [pid 5697] close(3) = 0 [pid 5697] write(1, "executing program\n", 18) = 18 executing program [pid 5697] memfd_create("syzkaller", 0) = 3 [pid 5697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5697] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5697] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5697] close(3) = 0 [pid 5697] creat("./bus", 000) = 3 [pid 5697] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5697] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5697] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5697] exit_group(0) = ? [pid 5697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5699 attached , child_tidptr=0x5555694816d0) = 5699 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5699] set_robust_list(0x5555694816e0, 24) = 0 [pid 5699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5699] setpgid(0, 0) = 0 [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5699] write(3, "1000", 4) = 4 [pid 5699] close(3) = 0 [pid 5699] write(1, "executing program\n", 18) = 18 executing program [pid 5699] memfd_create("syzkaller", 0) = 3 [pid 5699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5699] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5699] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5699] close(3) = 0 [pid 5699] creat("./bus", 000) = 3 [pid 5699] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5699] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5699] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5699] exit_group(0) = ? [pid 5699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5700 rt_sigprocmask(SIG_SETMASK, []ci2-upstream-fs/strace-static-x86_64: Process 5700 attached , NULL, 8) = 0 [pid 5700] set_robust_list(0x5555694816e0, 24) = 0 [pid 5700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5700] setpgid(0, 0) = 0 [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5700] write(3, "1000", 4) = 4 [pid 5700] close(3) = 0 executing program [pid 5700] write(1, "executing program\n", 18) = 18 [pid 5700] memfd_create("syzkaller", 0) = 3 [pid 5700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5700] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5700] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5700] close(3) = 0 [pid 5700] creat("./bus", 000) = 3 [pid 5700] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5700] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5700] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5700] exit_group(0) = ? [pid 5700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5701 attached , child_tidptr=0x5555694816d0) = 5701 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5701] set_robust_list(0x5555694816e0, 24) = 0 [pid 5701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5701] setpgid(0, 0) = 0 [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5701] write(3, "1000", 4) = 4 [pid 5701] close(3) = 0 [pid 5701] write(1, "executing program\n", 18) = 18 executing program [pid 5701] memfd_create("syzkaller", 0) = 3 [pid 5701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5701] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5701] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5701] close(3) = 0 [pid 5701] creat("./bus", 000) = 3 [pid 5701] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5701] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5701] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5701] exit_group(0) = ? [pid 5701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5702 attached , child_tidptr=0x5555694816d0) = 5702 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5702] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5702] <... set_robust_list resumed>) = 0 [pid 5702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5702] setpgid(0, 0) = 0 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5702] write(3, "1000", 4) = 4 [pid 5702] close(3) = 0 [pid 5702] write(1, "executing program\n", 18) = 18 executing program [pid 5702] memfd_create("syzkaller", 0) = 3 [pid 5702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5702] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5702] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5702] close(3) = 0 [pid 5702] creat("./bus", 000) = 3 [pid 5702] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5702] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5702] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5702] exit_group(0) = ? [pid 5702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5703 attached , child_tidptr=0x5555694816d0) = 5703 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5703] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5703] setpgid(0, 0) = 0 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5703] write(3, "1000", 4) = 4 [pid 5703] close(3) = 0 [pid 5703] write(1, "executing program\n", 18) = 18 [pid 5703] memfd_create("syzkaller", 0) = 3 executing program [pid 5703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5703] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5703] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5703] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5703] close(3) = 0 [pid 5703] creat("./bus", 000) = 3 [pid 5703] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5703] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5703] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5703] exit_group(0) = ? [pid 5703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5704 ci2-upstream-fs/strace-static-x86_64: Process 5704 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5704] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5704] setpgid(0, 0) = 0 [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5704] write(3, "1000", 4) = 4 [pid 5704] close(3) = 0 [pid 5704] write(1, "executing program\n", 18) = 18 [pid 5704] memfd_create("syzkaller", 0) = 3 [pid 5704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 executing program [pid 5704] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5704] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5704] close(3) = 0 [pid 5704] creat("./bus", 000) = 3 [pid 5704] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5704] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5704] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5704] exit_group(0) = ? [pid 5704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5705 attached , child_tidptr=0x5555694816d0) = 5705 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5705] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5705] <... set_robust_list resumed>) = 0 [pid 5705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5705] setpgid(0, 0) = 0 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5705] write(3, "1000", 4) = 4 [pid 5705] close(3) = 0 [pid 5705] write(1, "executing program\n", 18) = 18 executing program [pid 5705] memfd_create("syzkaller", 0) = 3 [pid 5705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5705] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5705] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5705] close(3) = 0 [pid 5705] creat("./bus", 000) = 3 [pid 5705] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5705] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5705] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5705] exit_group(0) = ? [pid 5705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5706 attached [pid 5706] set_robust_list(0x5555694816e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5706 [pid 5706] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5706] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5706] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5706] setpgid(0, 0) = 0 [pid 5706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5706] write(3, "1000", 4) = 4 [pid 5706] close(3) = 0 [pid 5706] write(1, "executing program\n", 18) = 18 executing program [pid 5706] memfd_create("syzkaller", 0) = 3 [pid 5706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5706] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5706] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5706] close(3) = 0 [pid 5706] creat("./bus", 000) = 3 [pid 5706] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5706] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5706] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5706] exit_group(0) = ? [pid 5706] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5706, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5707 attached , child_tidptr=0x5555694816d0) = 5707 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5707] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5707] <... set_robust_list resumed>) = 0 [pid 5707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5707] setpgid(0, 0) = 0 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5707] write(3, "1000", 4) = 4 [pid 5707] close(3) = 0 executing program [pid 5707] write(1, "executing program\n", 18) = 18 [pid 5707] memfd_create("syzkaller", 0) = 3 [pid 5707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5707] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5707] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5707] close(3) = 0 [pid 5707] creat("./bus", 000) = 3 [pid 5707] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5707] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5707] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5707] exit_group(0) = ? [pid 5707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5708 attached , child_tidptr=0x5555694816d0) = 5708 [pid 5708] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5708] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5708] setpgid(0, 0) = 0 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5708] write(3, "1000", 4) = 4 [pid 5708] close(3) = 0 [pid 5708] write(1, "executing program\n", 18) = 18 executing program [pid 5708] memfd_create("syzkaller", 0) = 3 [pid 5708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5708] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5708] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5708] close(3) = 0 [pid 5708] creat("./bus", 000) = 3 [pid 5708] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5708] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5708] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5708] exit_group(0) = ? [pid 5708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5709 ci2-upstream-fs/strace-static-x86_64: Process 5709 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5709] set_robust_list(0x5555694816e0, 24) = 0 [pid 5709] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5709] setpgid(0, 0) = 0 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5709] write(3, "1000", 4) = 4 [pid 5709] close(3) = 0 [pid 5709] write(1, "executing program\n", 18) = 18 executing program [pid 5709] memfd_create("syzkaller", 0) = 3 [pid 5709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5709] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5709] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5709] close(3) = 0 [pid 5709] creat("./bus", 000) = 3 [pid 5709] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5709] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5709] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5709] exit_group(0) = ? [pid 5709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5710 attached [pid 5710] set_robust_list(0x5555694816e0, 24) = 0 [pid 5710] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... clone resumed>, child_tidptr=0x5555694816d0) = 5710 [pid 5710] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5710] setpgid(0, 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5710] <... setpgid resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5710] write(3, "1000", 4) = 4 [pid 5710] close(3) = 0 [pid 5710] write(1, "executing program\n", 18) = 18 executing program [pid 5710] memfd_create("syzkaller", 0) = 3 [pid 5710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5710] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5710] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5710] close(3) = 0 [pid 5710] creat("./bus", 000) = 3 [pid 5710] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5710] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5710] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5710] exit_group(0) = ? [pid 5710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5710, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5711 attached , child_tidptr=0x5555694816d0) = 5711 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5711] set_robust_list(0x5555694816e0, 24) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5711] setpgid(0, 0) = 0 [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5711] write(3, "1000", 4) = 4 [pid 5711] close(3) = 0 executing program [pid 5711] write(1, "executing program\n", 18) = 18 [pid 5711] memfd_create("syzkaller", 0) = 3 [pid 5711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5711] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5711] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5711] close(3) = 0 [pid 5711] creat("./bus", 000) = 3 [pid 5711] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5711] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5711] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5711] exit_group(0) = ? [pid 5711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5712 attached , child_tidptr=0x5555694816d0) = 5712 [pid 5712] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5712] <... set_robust_list resumed>) = 0 [pid 5712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5712] setpgid(0, 0) = 0 [pid 5712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5712] write(3, "1000", 4) = 4 [pid 5712] close(3) = 0 executing program [pid 5712] write(1, "executing program\n", 18) = 18 [pid 5712] memfd_create("syzkaller", 0) = 3 [pid 5712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5712] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5712] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5712] close(3) = 0 [pid 5712] creat("./bus", 000) = 3 [pid 5712] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5712] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5712] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5712] exit_group(0) = ? [pid 5712] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5712, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5713 attached , child_tidptr=0x5555694816d0) = 5713 [pid 5713] set_robust_list(0x5555694816e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5713] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5713] setpgid(0, 0) = 0 [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5713] write(3, "1000", 4) = 4 [pid 5713] close(3) = 0 [pid 5713] write(1, "executing program\n", 18) = 18 executing program [pid 5713] memfd_create("syzkaller", 0) = 3 [pid 5713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5713] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5713] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5713] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5713] close(3) = 0 [pid 5713] creat("./bus", 000) = 3 [pid 5713] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5713] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5713] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5713] exit_group(0) = ? [pid 5713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5714 attached , child_tidptr=0x5555694816d0) = 5714 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5714] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5714] <... set_robust_list resumed>) = 0 [pid 5714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5714] setpgid(0, 0) = 0 [pid 5714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5714] write(3, "1000", 4) = 4 [pid 5714] close(3) = 0 [pid 5714] write(1, "executing program\n", 18) = 18 executing program [pid 5714] memfd_create("syzkaller", 0) = 3 [pid 5714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5714] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5714] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5714] close(3) = 0 [pid 5714] creat("./bus", 000) = 3 [pid 5714] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5714] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5714] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5714] exit_group(0) = ? [pid 5714] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5714, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5715 attached , child_tidptr=0x5555694816d0) = 5715 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5715] set_robust_list(0x5555694816e0, 24) = 0 [pid 5715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5715] setpgid(0, 0) = 0 [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5715] write(3, "1000", 4) = 4 [pid 5715] close(3) = 0 [pid 5715] write(1, "executing program\n", 18) = 18 executing program [pid 5715] memfd_create("syzkaller", 0) = 3 [pid 5715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5715] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5715] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5715] close(3) = 0 [pid 5715] creat("./bus", 000) = 3 [pid 5715] openat(AT_FDCWD, "blkio.bfq.time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5715] write(4, "\x50\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x2d\x00\x00\x00\x09\x00\x00\x00\x01\x00\x00\x00\xff\x7f\x00\x04\x08\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 5715] copy_file_range(4, [0], 3, NULL, 18446744073709551608, 0) = 80 [pid 5715] exit_group(0) = ? [pid 5715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555694816d0) = 5716 ci2-upstream-fs/strace-static-x86_64: Process 5716 attached [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5716] set_robust_list(0x5555694816e0, 24 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5716] <... set_robust_list resumed>) = 0 [pid 5716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5716] setpgid(0, 0) = 0 [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5716] write(3, "1000", 4) = 4 [pid 5716] close(3) = 0 [pid 5716] write(1, "executing program\n", 18) = 18 executing program [pid 5716] memfd_create("syzkaller", 0) = 3 [pid 5716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f895ca6a000 [pid 5716] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5716] munmap(0x7f895ca6a000, 138412032) = 0 [pid 5716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5716] close(3) = 0