./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1988195570 <...> Warning: Permanently added '10.128.1.21' (ED25519) to the list of known hosts. execve("./syz-executor1988195570", ["./syz-executor1988195570"], 0x7ffcbe92b1d0 /* 10 vars */) = 0 brk(NULL) = 0x55557c285000 brk(0x55557c285d00) = 0x55557c285d00 arch_prctl(ARCH_SET_FS, 0x55557c285380) = 0 set_tid_address(0x55557c285650) = 5825 set_robust_list(0x55557c285660, 24) = 0 rseq(0x55557c285ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1988195570", 4096) = 28 getrandom("\x2a\xed\x4e\x21\x6f\x84\x12\x11", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557c285d00 brk(0x55557c2a6d00) = 0x55557c2a6d00 brk(0x55557c2a7000) = 0x55557c2a7000 mprotect(0x7f8bc866a000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5827 attached , child_tidptr=0x55557c285650) = 5827 [pid 5827] set_robust_list(0x55557c285660, 24) = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5827] setpgid(0, 0) = 0 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5827] write(3, "1000", 4) = 4 [pid 5827] close(3) = 0 [pid 5827] write(1, "executing program\n", 18executing program ) = 18 [pid 5827] memfd_create("syzkaller", 0) = 3 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5827] 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 5827] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5827] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5827] close(3) = 0 [pid 5827] close(4) = 0 [pid 5827] mkdir("./file1", 0777) = 0 [ 78.385642][ T5827] loop0: detected capacity change from 0 to 32768 [ 78.408923][ T5827] ======================================================= [ 78.408923][ T5827] WARNING: The mand mount option has been deprecated and [ 78.408923][ T5827] and is ignored by this kernel. Remove the mand [pid 5827] mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,data=writeback,preferred_slot=00000000000000000000,acl,localflocks,intr,noacl,") = 0 [pid 5827] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5827] chdir("./file1") = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5827] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = 4 [ 78.408923][ T5827] option from the mount to silence this warning. [ 78.408923][ T5827] ======================================================= [ 78.466420][ T5827] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 78.510879][ T5827] [ 78.513259][ T5827] ====================================================== [ 78.520363][ T5827] WARNING: possible circular locking dependency detected [ 78.527391][ T5827] 6.13.0-rc3-syzkaller-00017-gf44d154d6e3d #0 Not tainted [ 78.534493][ T5827] ------------------------------------------------------ [ 78.541505][ T5827] syz-executor198/5827 is trying to acquire lock: [ 78.547915][ T5827] ffff8880754b5be0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 78.558586][ T5827] [ 78.558586][ T5827] but task is already holding lock: [ 78.565952][ T5827] ffff8880754b5c78 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa5/0x330 [ 78.576592][ T5827] [ 78.576592][ T5827] which lock already depends on the new lock. [ 78.576592][ T5827] [ 78.586998][ T5827] [ 78.586998][ T5827] the existing dependency chain (in reverse order) is: [ 78.596016][ T5827] [ 78.596016][ T5827] -> #4 (&oi->ip_xattr_sem){++++}-{4:4}: [ 78.603845][ T5827] lock_acquire+0x1ed/0x550 [ 78.608878][ T5827] down_write+0x99/0x220 [ 78.613657][ T5827] ocfs2_xattr_set_handle+0x539/0xa10 [ 78.619560][ T5827] ocfs2_init_security_set+0xbd/0xd0 [ 78.625379][ T5827] ocfs2_mknod+0x1ccf/0x2b30 [ 78.630495][ T5827] ocfs2_create+0x1ab/0x470 [ 78.635529][ T5827] path_openat+0x1c03/0x3590 [ 78.640654][ T5827] do_filp_open+0x27f/0x4e0 [ 78.645689][ T5827] do_sys_openat2+0x13e/0x1d0 [ 78.650913][ T5827] __x64_sys_openat+0x247/0x2a0 [ 78.656290][ T5827] do_syscall_64+0xf3/0x230 [ 78.661335][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.667762][ T5827] [ 78.667762][ T5827] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 78.675083][ T5827] lock_acquire+0x1ed/0x550 [ 78.680116][ T5827] start_this_handle+0x1eb4/0x2110 [ 78.685849][ T5827] jbd2__journal_start+0x2da/0x5d0 [ 78.691493][ T5827] jbd2_journal_start+0x29/0x40 [ 78.696963][ T5827] ocfs2_start_trans+0x3c9/0x700 [ 78.702437][ T5827] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 78.708859][ T5827] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 78.715714][ T5827] ocfs2_mknod+0x143a/0x2b30 [ 78.720916][ T5827] ocfs2_create+0x1ab/0x470 [ 78.725945][ T5827] path_openat+0x1c03/0x3590 [ 78.731071][ T5827] do_filp_open+0x27f/0x4e0 [ 78.736188][ T5827] do_sys_openat2+0x13e/0x1d0 [ 78.741392][ T5827] __x64_sys_openat+0x247/0x2a0 [ 78.746765][ T5827] do_syscall_64+0xf3/0x230 [ 78.751801][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.758414][ T5827] [ 78.758414][ T5827] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 78.766939][ T5827] lock_acquire+0x1ed/0x550 [ 78.772153][ T5827] down_read+0xb1/0xa40 [ 78.776842][ T5827] ocfs2_start_trans+0x3be/0x700 [ 78.782310][ T5827] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 78.788975][ T5827] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 78.795854][ T5827] ocfs2_mknod+0x143a/0x2b30 [ 78.800994][ T5827] ocfs2_create+0x1ab/0x470 [ 78.806023][ T5827] path_openat+0x1c03/0x3590 [ 78.811142][ T5827] do_filp_open+0x27f/0x4e0 [ 78.816171][ T5827] do_sys_openat2+0x13e/0x1d0 [ 78.821373][ T5827] __x64_sys_openat+0x247/0x2a0 [ 78.826748][ T5827] do_syscall_64+0xf3/0x230 [ 78.831783][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.838207][ T5827] [ 78.838207][ T5827] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 78.845698][ T5827] lock_acquire+0x1ed/0x550 [ 78.850727][ T5827] ocfs2_start_trans+0x2b9/0x700 [ 78.856196][ T5827] ocfs2_truncate_file+0x69a/0x1560 [ 78.861921][ T5827] ocfs2_setattr+0x1890/0x1ef0 [ 78.867211][ T5827] notify_change+0xbca/0xe90 [ 78.872332][ T5827] do_truncate+0x220/0x310 [ 78.877277][ T5827] path_openat+0x2e1e/0x3590 [ 78.882400][ T5827] do_filp_open+0x27f/0x4e0 [ 78.887432][ T5827] do_sys_openat2+0x13e/0x1d0 [ 78.892637][ T5827] __x64_sys_openat+0x247/0x2a0 [ 78.898014][ T5827] do_syscall_64+0xf3/0x230 [ 78.903050][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.909493][ T5827] [ 78.909493][ T5827] -> #0 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 78.917323][ T5827] validate_chain+0x18ef/0x5920 [ 78.922704][ T5827] __lock_acquire+0x1397/0x2100 [ 78.928080][ T5827] lock_acquire+0x1ed/0x550 [ 78.933109][ T5827] down_write+0x99/0x220 [ 78.937873][ T5827] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 78.944407][ T5827] ocfs2_truncate_file+0xe1b/0x1560 [ 78.950131][ T5827] ocfs2_setattr+0x1890/0x1ef0 [ 78.956198][ T5827] notify_change+0xbca/0xe90 [ 78.961321][ T5827] do_truncate+0x220/0x310 [ 78.966264][ T5827] path_openat+0x2e1e/0x3590 [ 78.971392][ T5827] do_filp_open+0x27f/0x4e0 [ 78.976421][ T5827] do_sys_openat2+0x13e/0x1d0 [ 78.981621][ T5827] __x64_sys_openat+0x247/0x2a0 [ 78.986995][ T5827] do_syscall_64+0xf3/0x230 [ 78.992034][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.998461][ T5827] [ 78.998461][ T5827] other info that might help us debug this: [ 78.998461][ T5827] [ 79.008954][ T5827] Chain exists of: [ 79.008954][ T5827] &oi->ip_alloc_sem --> jbd2_handle --> &oi->ip_xattr_sem [ 79.008954][ T5827] [ 79.022178][ T5827] Possible unsafe locking scenario: [ 79.022178][ T5827] [ 79.029631][ T5827] CPU0 CPU1 [ 79.034997][ T5827] ---- ---- [ 79.040362][ T5827] lock(&oi->ip_xattr_sem); [ 79.044962][ T5827] lock(jbd2_handle); [ 79.051554][ T5827] lock(&oi->ip_xattr_sem); [ 79.058711][ T5827] lock(&oi->ip_alloc_sem); [ 79.063323][ T5827] [ 79.063323][ T5827] *** DEADLOCK *** [ 79.063323][ T5827] [ 79.071478][ T5827] 3 locks held by syz-executor198/5827: [ 79.077112][ T5827] #0: ffff888078920420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 79.086287][ T5827] #1: ffff8880754b5f40 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: do_truncate+0x20c/0x310 [ 79.096674][ T5827] #2: ffff8880754b5c78 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa5/0x330 [ 79.107750][ T5827] [ 79.107750][ T5827] stack backtrace: [ 79.113732][ T5827] CPU: 1 UID: 0 PID: 5827 Comm: syz-executor198 Not tainted 6.13.0-rc3-syzkaller-00017-gf44d154d6e3d #0 [ 79.124933][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 79.135029][ T5827] Call Trace: [ 79.138333][ T5827] [ 79.141273][ T5827] dump_stack_lvl+0x241/0x360 [ 79.145970][ T5827] ? __pfx_dump_stack_lvl+0x10/0x10 [ 79.151186][ T5827] ? __pfx__printk+0x10/0x10 [ 79.155792][ T5827] print_circular_bug+0x13a/0x1b0 [ 79.160834][ T5827] check_noncircular+0x36a/0x4a0 [ 79.165823][ T5827] ? __pfx_check_noncircular+0x10/0x10 [ 79.171298][ T5827] ? lockdep_lock+0x123/0x2b0 [ 79.175989][ T5827] validate_chain+0x18ef/0x5920 [ 79.180944][ T5827] ? __pfx_validate_chain+0x10/0x10 [ 79.186156][ T5827] ? do_sys_openat2+0x13e/0x1d0 [ 79.191065][ T5827] ? do_syscall_64+0xf3/0x230 [ 79.195767][ T5827] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.201866][ T5827] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 79.207861][ T5827] ? mark_lock+0x9a/0x360 [ 79.212224][ T5827] __lock_acquire+0x1397/0x2100 [ 79.217270][ T5827] lock_acquire+0x1ed/0x550 [ 79.221796][ T5827] ? ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 79.227976][ T5827] ? __pfx_lock_acquire+0x10/0x10 [ 79.233011][ T5827] ? __pfx___might_resched+0x10/0x10 [ 79.238329][ T5827] ? ocfs2_truncate_file+0xd45/0x1560 [ 79.243740][ T5827] ? __pfx_lock_release+0x10/0x10 [ 79.248819][ T5827] down_write+0x99/0x220 [ 79.253101][ T5827] ? ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 79.259283][ T5827] ? __pfx_down_write+0x10/0x10 [ 79.264267][ T5827] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 79.270259][ T5827] ? __pfx_ocfs2_try_remove_refcount_tree+0x10/0x10 [ 79.276858][ T5827] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 79.282941][ T5827] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 79.288684][ T5827] ocfs2_truncate_file+0xe1b/0x1560 [ 79.293887][ T5827] ? ocfs2_inode_lock_tracker+0x45a/0x760 [ 79.299635][ T5827] ? __pfx_ocfs2_truncate_file+0x10/0x10 [ 79.305270][ T5827] ? do_raw_spin_unlock+0x13c/0x8b0 [ 79.310582][ T5827] ? __asan_memset+0x23/0x50 [ 79.315183][ T5827] ? _raw_spin_unlock+0x28/0x50 [ 79.320042][ T5827] ? ocfs2_inode_lock_tracker+0x45a/0x760 [ 79.325859][ T5827] ? __pfx_ocfs2_inode_lock_tracker+0x10/0x10 [ 79.332027][ T5827] ? ocfs2_rw_lock+0x13e/0x260 [ 79.336823][ T5827] ? __pfx_ocfs2_rw_lock+0x10/0x10 [ 79.342028][ T5827] ? setattr_prepare+0x1f5/0xb20 [ 79.347009][ T5827] ? inode_newsize_ok+0x11a/0x1c0 [ 79.352053][ T5827] ocfs2_setattr+0x1890/0x1ef0 [ 79.356842][ T5827] ? __pfx_ocfs2_setattr+0x10/0x10 [ 79.362053][ T5827] ? __pfx_smack_inode_setattr+0x10/0x10 [ 79.367705][ T5827] ? current_time+0x282/0x3c0 [ 79.372389][ T5827] ? evm_inode_setattr+0x1b2/0x7d0 [ 79.377528][ T5827] ? security_inode_setattr+0xdb/0x350 [ 79.383016][ T5827] ? __pfx_ocfs2_setattr+0x10/0x10 [ 79.388147][ T5827] notify_change+0xbca/0xe90 [ 79.392764][ T5827] do_truncate+0x220/0x310 [ 79.397193][ T5827] ? __pfx_do_truncate+0x10/0x10 [ 79.402148][ T5827] path_openat+0x2e1e/0x3590 [ 79.406757][ T5827] ? __pfx_path_openat+0x10/0x10 [ 79.411708][ T5827] do_filp_open+0x27f/0x4e0 [ 79.416222][ T5827] ? __pfx_do_filp_open+0x10/0x10 [ 79.421251][ T5827] ? do_raw_spin_lock+0x14f/0x370 [ 79.426301][ T5827] do_sys_openat2+0x13e/0x1d0 [ 79.430986][ T5827] ? __pfx_do_sys_openat2+0x10/0x10 [ 79.436188][ T5827] ? lockdep_hardirqs_on+0x99/0x150 [ 79.441401][ T5827] ? _raw_spin_unlock_irq+0x2e/0x50 [ 79.446695][ T5827] ? ptrace_notify+0x279/0x380 [ 79.451491][ T5827] __x64_sys_openat+0x247/0x2a0 [ 79.456348][ T5827] ? __pfx___x64_sys_openat+0x10/0x10 [ 79.461727][ T5827] ? do_syscall_64+0x100/0x230 [ 79.466506][ T5827] do_syscall_64+0xf3/0x230 [ 79.471024][ T5827] ? clear_bhb_loop+0x35/0x90 [ 79.475711][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.481631][ T5827] RIP: 0033:0x7f8bc85f1e59 [ 79.486054][ T5827] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 79.505676][ T5827] RSP: 002b:00007fff811342a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [pid 5827] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = 5 [pid 5827] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5827] exit_group(0) = ? [pid 5827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5830 attached , child_tidptr=0x55557c285650) = 5830 [pid 5830] set_robust_list(0x55557c285660, 24) = 0 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 79.514100][ T5827] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f8bc85f1e59 [ 79.522078][ T5827] RDX: 0000000000103202 RSI: 0000000020000100 RDI: 00000000ffffff9c [ 79.530054][ T5827] RBP: 00007f8bc866a5f0 R08: 000055557c2864c0 R09: 000055557c2864c0 [ 79.538026][ T5827] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff811342d0 [ 79.545999][ T5827] R13: 00007fff811344f8 R14: 431bde82d7b634db R15: 00007f8bc863b03b [ 79.553994][ T5827] [pid 5830] setpgid(0, 0) = 0 [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5830] write(3, "1000", 4) = 4 [pid 5830] close(3) = 0 [pid 5830] write(1, "executing program\n", 18executing program ) = 18 [pid 5830] memfd_create("syzkaller", 0) = 3 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5830] 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 5830] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5830] close(3) = 0 [pid 5830] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5830] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5830] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5830] exit_group(0) = ? [pid 5830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5831 attached , child_tidptr=0x55557c285650) = 5831 [pid 5831] set_robust_list(0x55557c285660, 24) = 0 [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5831] setpgid(0, 0) = 0 [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1000", 4) = 4 [pid 5831] close(3) = 0 executing program [pid 5831] write(1, "executing program\n", 18) = 18 [pid 5831] memfd_create("syzkaller", 0) = 3 [pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5831] 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 5831] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5831] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5831] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5831] exit_group(0) = ? [pid 5831] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5832 attached , child_tidptr=0x55557c285650) = 5832 [pid 5832] set_robust_list(0x55557c285660, 24) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5832] setpgid(0, 0) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1000", 4) = 4 [pid 5832] close(3) = 0 executing program [pid 5832] write(1, "executing program\n", 18) = 18 [pid 5832] memfd_create("syzkaller", 0) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5832] 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 5832] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5832] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5832] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5832] exit_group(0) = ? [pid 5832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached , child_tidptr=0x55557c285650) = 5833 [pid 5833] set_robust_list(0x55557c285660, 24) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] setpgid(0, 0) = 0 [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1000", 4) = 4 [pid 5833] close(3) = 0 executing program [pid 5833] write(1, "executing program\n", 18) = 18 [pid 5833] memfd_create("syzkaller", 0) = 3 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5833] 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 5833] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5833] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5833] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5833] exit_group(0) = ? [pid 5833] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5834 attached , child_tidptr=0x55557c285650) = 5834 [pid 5834] set_robust_list(0x55557c285660, 24) = 0 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] setpgid(0, 0) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1000", 4) = 4 [pid 5834] close(3) = 0 executing program [pid 5834] write(1, "executing program\n", 18) = 18 [pid 5834] memfd_create("syzkaller", 0) = 3 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5834] 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 5834] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5834] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5834] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5834] exit_group(0) = ? [pid 5834] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5835 attached , child_tidptr=0x55557c285650) = 5835 [pid 5835] set_robust_list(0x55557c285660, 24) = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5835] setpgid(0, 0) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5835] write(3, "1000", 4) = 4 [pid 5835] close(3) = 0 executing program [pid 5835] write(1, "executing program\n", 18) = 18 [pid 5835] memfd_create("syzkaller", 0) = 3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5835] 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 5835] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5835] close(3) = 0 [pid 5835] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5835] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5835] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5835] exit_group(0) = ? [pid 5835] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=12 /* 0.12 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5836 attached , child_tidptr=0x55557c285650) = 5836 [pid 5836] set_robust_list(0x55557c285660, 24) = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5836] setpgid(0, 0) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4) = 4 [pid 5836] close(3) = 0 executing program [pid 5836] write(1, "executing program\n", 18) = 18 [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5836] 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 5836] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] close(3) = 0 [pid 5836] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5836] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5836] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5836] exit_group(0) = ? [pid 5836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5837 attached , child_tidptr=0x55557c285650) = 5837 [pid 5837] set_robust_list(0x55557c285660, 24) = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5837] setpgid(0, 0) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1000", 4) = 4 [pid 5837] close(3) = 0 [pid 5837] write(1, "executing program\n", 18executing program ) = 18 [pid 5837] memfd_create("syzkaller", 0) = 3 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5837] 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 5837] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5837] close(3) = 0 [pid 5837] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5837] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5837] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5837] exit_group(0) = ? [pid 5837] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=10 /* 0.10 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached , child_tidptr=0x55557c285650) = 5838 [pid 5838] set_robust_list(0x55557c285660, 24) = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] setpgid(0, 0) = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1000", 4) = 4 [pid 5838] close(3) = 0 executing program [pid 5838] write(1, "executing program\n", 18) = 18 [pid 5838] memfd_create("syzkaller", 0) = 3 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5838] 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 5838] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5838] close(3) = 0 [pid 5838] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5838] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5838] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5838] exit_group(0) = ? [pid 5838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached , child_tidptr=0x55557c285650) = 5839 [pid 5839] set_robust_list(0x55557c285660, 24) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] setpgid(0, 0) = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 [pid 5839] write(1, "executing program\n", 18executing program ) = 18 [pid 5839] memfd_create("syzkaller", 0) = 3 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5839] 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 5839] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5839] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5839] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5839] exit_group(0) = ? [pid 5839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5840 ./strace-static-x86_64: Process 5840 attached [pid 5840] set_robust_list(0x55557c285660, 24) = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 executing program [pid 5840] write(1, "executing program\n", 18) = 18 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5840] 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 5840] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5840] close(3) = 0 [pid 5840] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5840] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5840] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5840] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x55557c285650) = 5841 [pid 5841] set_robust_list(0x55557c285660, 24) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5841] 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 5841] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5841] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5841] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5841] exit_group(0) = ? [pid 5841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached , child_tidptr=0x55557c285650) = 5842 [pid 5842] set_robust_list(0x55557c285660, 24) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 executing program [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5842] 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 5842] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5842] close(3) = 0 [pid 5842] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5842] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5842] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=10 /* 0.10 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached , child_tidptr=0x55557c285650) = 5843 [pid 5843] set_robust_list(0x55557c285660, 24) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 [pid 5843] write(1, "executing program\n", 18executing program ) = 18 [pid 5843] memfd_create("syzkaller", 0) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5843] 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 5843] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5843] close(3) = 0 [pid 5843] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5843] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5843] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached , child_tidptr=0x55557c285650) = 5844 [pid 5844] set_robust_list(0x55557c285660, 24) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] setpgid(0, 0) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5844] 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 5844] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5844] close(3) = 0 [pid 5844] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5844] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5844] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5844] exit_group(0) = ? [pid 5844] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached , child_tidptr=0x55557c285650) = 5845 [pid 5845] set_robust_list(0x55557c285660, 24) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] setpgid(0, 0) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3executing program ) = 0 [pid 5845] write(1, "executing program\n", 18) = 18 [pid 5845] memfd_create("syzkaller", 0) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5845] 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 5845] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5845] close(3) = 0 [pid 5845] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5845] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5845] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5845] exit_group(0) = ? [pid 5845] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5846 attached , child_tidptr=0x55557c285650) = 5846 [pid 5846] set_robust_list(0x55557c285660, 24) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5846] setpgid(0, 0) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5846] write(3, "1000", 4) = 4 [pid 5846] close(3) = 0 executing program [pid 5846] write(1, "executing program\n", 18) = 18 [pid 5846] memfd_create("syzkaller", 0) = 3 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5846] 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 5846] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5846] close(3) = 0 [pid 5846] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5846] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5846] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5846] exit_group(0) = ? [pid 5846] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached , child_tidptr=0x55557c285650) = 5847 [pid 5847] set_robust_list(0x55557c285660, 24) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 executing program [pid 5847] write(1, "executing program\n", 18) = 18 [pid 5847] memfd_create("syzkaller", 0) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5847] 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 5847] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5847] close(3) = 0 [pid 5847] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5847] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5847] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5847] exit_group(0) = ? [pid 5847] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5848 attached , child_tidptr=0x55557c285650) = 5848 [pid 5848] set_robust_list(0x55557c285660, 24) = 0 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5848] setpgid(0, 0) = 0 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5848] write(3, "1000", 4) = 4 [pid 5848] close(3) = 0 [pid 5848] write(1, "executing program\n", 18executing program ) = 18 [pid 5848] memfd_create("syzkaller", 0) = 3 [pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5848] 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 5848] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5848] close(3) = 0 [pid 5848] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5848] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5848] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5848] exit_group(0) = ? [pid 5848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached , child_tidptr=0x55557c285650) = 5849 [pid 5849] set_robust_list(0x55557c285660, 24) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0) = 0 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3) = 0 executing program [pid 5849] write(1, "executing program\n", 18) = 18 [pid 5849] memfd_create("syzkaller", 0) = 3 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5849] 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 5849] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5849] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5849] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5849] exit_group(0) = ? [pid 5849] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5850 ./strace-static-x86_64: Process 5850 attached [pid 5850] set_robust_list(0x55557c285660, 24) = 0 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0) = 0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1000", 4) = 4 [pid 5850] close(3) = 0 [pid 5850] write(1, "executing program\n", 18executing program ) = 18 [pid 5850] memfd_create("syzkaller", 0) = 3 [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5850] 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 5850] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5850] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5850] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5850] exit_group(0) = ? [pid 5850] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5851 ./strace-static-x86_64: Process 5851 attached [pid 5851] set_robust_list(0x55557c285660, 24) = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 executing program [pid 5851] write(1, "executing program\n", 18) = 18 [pid 5851] memfd_create("syzkaller", 0) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5851] 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 5851] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5851] close(3) = 0 [pid 5851] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5851] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5851] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5851] exit_group(0) = ? [pid 5851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5852 attached , child_tidptr=0x55557c285650) = 5852 [pid 5852] set_robust_list(0x55557c285660, 24) = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] write(1, "executing program\n", 18executing program ) = 18 [pid 5852] memfd_create("syzkaller", 0) = 3 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5852] 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 5852] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5852] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5852] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5852] exit_group(0) = ? [pid 5852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached , child_tidptr=0x55557c285650) = 5853 [pid 5853] set_robust_list(0x55557c285660, 24) = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5853] setpgid(0, 0) = 0 [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5853] write(3, "1000", 4) = 4 [pid 5853] close(3) = 0 executing program [pid 5853] write(1, "executing program\n", 18) = 18 [pid 5853] memfd_create("syzkaller", 0) = 3 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5853] 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 5853] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5853] close(3) = 0 [pid 5853] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5853] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5853] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5853] exit_group(0) = ? [pid 5853] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=11 /* 0.11 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5854 ./strace-static-x86_64: Process 5854 attached [pid 5854] set_robust_list(0x55557c285660, 24) = 0 [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5854] setpgid(0, 0) = 0 [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "1000", 4) = 4 [pid 5854] close(3) = 0 [pid 5854] write(1, "executing program\n", 18executing program ) = 18 [pid 5854] memfd_create("syzkaller", 0) = 3 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5854] 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 5854] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5854] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5854] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5854] exit_group(0) = ? [pid 5854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached , child_tidptr=0x55557c285650) = 5855 [pid 5855] set_robust_list(0x55557c285660, 24) = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 executing program [pid 5855] write(1, "executing program\n", 18) = 18 [pid 5855] memfd_create("syzkaller", 0) = 3 [pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5855] 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 5855] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5855] close(3) = 0 [pid 5855] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5855] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5855] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5855] exit_group(0) = ? [pid 5855] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5856 ./strace-static-x86_64: Process 5856 attached [pid 5856] set_robust_list(0x55557c285660, 24) = 0 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5856] setpgid(0, 0) = 0 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1000", 4) = 4 [pid 5856] close(3) = 0 executing program [pid 5856] write(1, "executing program\n", 18) = 18 [pid 5856] memfd_create("syzkaller", 0) = 3 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5856] 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 5856] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5856] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5856] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5856] exit_group(0) = ? [pid 5856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5857 attached , child_tidptr=0x55557c285650) = 5857 [pid 5857] set_robust_list(0x55557c285660, 24) = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5857] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5857] write(3, "1000", 4) = 4 [pid 5857] close(3) = 0 executing program [pid 5857] write(1, "executing program\n", 18) = 18 [pid 5857] memfd_create("syzkaller", 0) = 3 [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5857] 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 5857] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5857] close(3) = 0 [pid 5857] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5857] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5857] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5857] exit_group(0) = ? [pid 5857] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5858 attached , child_tidptr=0x55557c285650) = 5858 [pid 5858] set_robust_list(0x55557c285660, 24) = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 executing program [pid 5858] write(1, "executing program\n", 18) = 18 [pid 5858] memfd_create("syzkaller", 0) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bc0000000 [pid 5858] 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 5858] munmap(0x7f8bc0000000, 138412032) = 0 [pid 5858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5858] close(3) = 0 [pid 5858] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC, 000) = -1 EISDIR (Is a directory) [pid 5858] openat(AT_FDCWD, "./file1", O_RDWR|O_TRUNC|O_SYNC|FASYNC) = -1 EISDIR (Is a directory) [pid 5858] openat(AT_FDCWD, NULL, O_RDONLY|O_NONBLOCK|O_SYNC|O_NOATIME|__O_TMPFILE, 000) = -1 EINVAL (Invalid argument) [pid 5858] exit_group(0) = ? [pid 5858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c285650) = 5859 ./strace-static-x86_64: Process 5859 attached [pid 5859] set_robust_list(0x55557c285660, 24) = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0