./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2616551714 <...> Warning: Permanently added '10.128.0.39' (ED25519) to the list of known hosts. execve("./syz-executor2616551714", ["./syz-executor2616551714"], 0x7ffd147ed600 /* 10 vars */) = 0 brk(NULL) = 0x555556679000 brk(0x555556679d00) = 0x555556679d00 arch_prctl(ARCH_SET_FS, 0x555556679380) = 0 set_tid_address(0x555556679650) = 5060 set_robust_list(0x555556679660, 24) = 0 rseq(0x555556679ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2616551714", 4096) = 28 getrandom("\x18\xe2\xa4\x87\xba\x3e\xb9\x40", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556679d00 brk(0x55555669ad00) = 0x55555669ad00 brk(0x55555669b000) = 0x55555669b000 mprotect(0x7fcad8938000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5061 attached [pid 5061] set_robust_list(0x555556679660, 24) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5061 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5062 attached [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5062 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] set_robust_list(0x555556679660, 24 [pid 5061] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5062] <... set_robust_list resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5061] close(3) = 0 [pid 5062] <... openat resumed>) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5063 [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5063 attached [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5062] close(3 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5064 [pid 5062] <... close resumed>) = 0 [ 74.136903][ T27] audit: type=1400 audit(1704136819.545:83): avc: denied { execmem } for pid=5060 comm="syz-executor261" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 74.156634][ T27] audit: type=1400 audit(1704136819.545:84): avc: denied { read write } for pid=5061 comm="syz-executor261" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5065 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5066 ./strace-static-x86_64: Process 5066 attached [pid 5066] set_robust_list(0x555556679660, 24) = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5067 [pid 5063] set_robust_list(0x555556679660, 24./strace-static-x86_64: Process 5065 attached ./strace-static-x86_64: Process 5064 attached [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] set_robust_list(0x555556679660, 24 [pid 5065] set_robust_list(0x555556679660, 24./strace-static-x86_64: Process 5067 attached ) = 0 [pid 5064] <... set_robust_list resumed>) = 0 [pid 5063] <... set_robust_list resumed>) = 0 [pid 5066] write(3, "1000", 4) = 4 [pid 5066] close(3) = 0 [pid 5066] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555556679650) = 5068 [pid 5066] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 ./strace-static-x86_64: Process 5068 attached [pid 5068] set_robust_list(0x555556679660, 24) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5066] sendfile(4, 3, [122] [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] <... openat resumed>) = 3 [pid 5064] <... prctl resumed>) = 0 [pid 5067] set_robust_list(0x555556679660, 24 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5064] setpgid(0, 0 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5067] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x555556679660, 24) = 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] <... prctl resumed>) = 0 [pid 5069] setpgid(0, 0 [pid 5063] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... setpgid resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... openat resumed>) = 3 [pid 5065] <... openat resumed>) = 3 [pid 5064] <... setpgid resumed>) = 0 [pid 5063] close(3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] <... openat resumed>) = 3 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] <... close resumed>) = 0 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5069 [pid 5067] close(3 [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... close resumed>) = 0 [pid 5064] <... openat resumed>) = 3 [pid 5069] write(3, "1000", 4) = 4 [pid 5069] close(3) = 0 [pid 5064] write(3, "1000", 4./strace-static-x86_64: Process 5071 attached [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] close(3 [pid 5064] <... write resumed>) = 4 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5071 [pid 5071] set_robust_list(0x555556679660, 24 [pid 5069] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5069] sendfile(4, 3, [122]./strace-static-x86_64: Process 5072 attached [pid 5071] <... set_robust_list resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5064] close(3 [pid 5072] set_robust_list(0x555556679660, 24 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] <... close resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5072 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0./strace-static-x86_64: Process 5073 attached ) = 0 [pid 5071] <... prctl resumed>) = 0 [ 74.182299][ T27] audit: type=1400 audit(1704136819.545:85): avc: denied { open } for pid=5061 comm="syz-executor261" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 74.207637][ T27] audit: type=1400 audit(1704136819.565:86): avc: denied { ioctl } for pid=5061 comm="syz-executor261" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5064] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] set_robust_list(0x555556679660, 24 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] setpgid(0, 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5073 [pid 5064] <... openat resumed>) = 3 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... openat resumed>) = 3 [pid 5071] <... setpgid resumed>) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5073] <... prctl resumed>) = 0 [pid 5064] <... openat resumed>) = 4 [pid 5073] setpgid(0, 0) = 0 [pid 5072] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... write resumed>) = 4 [pid 5064] sendfile(4, 3, [122] [pid 5072] close(3) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5072] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5072] sendfile(4, 3, [122] [pid 5073] write(3, "1000", 4 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... write resumed>) = 4 [pid 5073] close(3 [pid 5071] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5071] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5071] <... write resumed>) = 4 [pid 5071] close(3 [pid 5073] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5071] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 3 [pid 5073] sendfile(4, 3, [122] [pid 5071] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 75.263559][ T5069] syz-executor261 (5069): drop_caches: 3 [ 75.487230][ T27] audit: type=1400 audit(1704136820.895:87): avc: denied { append } for pid=4494 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 75.584531][ T27] audit: type=1400 audit(1704136820.895:88): avc: denied { open } for pid=4494 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 75.667323][ T5071] syz-executor261 (5071): drop_caches: 3 [ 75.694589][ T5073] syz-executor261 (5073): drop_caches: 3 [ 75.757674][ T27] audit: type=1400 audit(1704136820.895:89): avc: denied { getattr } for pid=4494 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [pid 5071] sendfile(4, 3, [122] [pid 5069] <... sendfile resumed> => [640], 571) = 518 [pid 5069] memfd_create("syzkaller", 0) = 5 [ 75.848763][ T5069] syz-executor261 (5069): drop_caches: 3 [ 75.878214][ T5066] syz-executor261 (5066): drop_caches: 3 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 76.063697][ T5071] syz-executor261 (5071): drop_caches: 3 [pid 5069] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5071] <... sendfile resumed> => [640], 571) = 518 [pid 5069] <... write resumed>) = 2097152 [pid 5071] memfd_create("syzkaller", 0 [pid 5069] munmap(0x7fcad0467000, 138412032 [pid 5071] <... memfd_create resumed>) = 5 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... munmap resumed>) = 0 [pid 5071] <... mmap resumed>) = 0x7fcad0467000 [pid 5069] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [ 76.122879][ T5064] syz-executor261 (5064): drop_caches: 3 [ 76.141648][ T5072] syz-executor261 (5072): drop_caches: 3 [ 76.154913][ T5073] syz-executor261 (5073): drop_caches: 3 [pid 5069] ioctl(6, LOOP_SET_FD, 5 [pid 5073] <... sendfile resumed> => [640], 571) = 518 [pid 5073] memfd_create("syzkaller", 0) = 5 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5069] <... ioctl resumed>) = 0 [ 76.173924][ T5069] loop5: detected capacity change from 0 to 4096 [pid 5069] close(5) = 0 [pid 5069] mkdir("./file0", 0777 [pid 5066] <... sendfile resumed> => [640], 571) = 518 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] mount("/dev/loop5", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5066] memfd_create("syzkaller", 0) = 5 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 76.217988][ T5066] syz-executor261 (5066): drop_caches: 3 [pid 5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5071] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 76.248523][ T27] audit: type=1400 audit(1704136821.655:90): avc: denied { mounton } for pid=5069 comm="syz-executor261" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 76.273514][ T5069] ntfs: (device loop5): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [pid 5066] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5073] <... write resumed>) = 2097152 [pid 5071] <... write resumed>) = 2097152 [pid 5073] munmap(0x7fcad0467000, 138412032) = 0 [pid 5071] munmap(0x7fcad0467000, 138412032 [ 76.328793][ T5069] ntfs: (device loop5): read_ntfs_boot_sector(): Primary boot sector is invalid. [pid 5073] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5073] ioctl(6, LOOP_SET_FD, 5 [pid 5071] <... munmap resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5071] ioctl(6, LOOP_SET_FD, 5 [pid 5066] <... write resumed>) = 2097152 [pid 5066] munmap(0x7fcad0467000, 138412032 [pid 5071] <... ioctl resumed>) = 0 [pid 5066] <... munmap resumed>) = 0 [pid 5073] <... ioctl resumed>) = 0 [pid 5071] close(5 [pid 5069] <... mount resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] close(5 [pid 5071] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5066] <... openat resumed>) = 6 [pid 5073] <... close resumed>) = 0 [pid 5071] mkdir("./file0", 0777 [ 76.398935][ T5073] loop3: detected capacity change from 0 to 4096 [ 76.417166][ T5071] loop2: detected capacity change from 0 to 4096 [ 76.425701][ T5069] ntfs: volume version 3.1. [pid 5066] ioctl(6, LOOP_SET_FD, 5 [pid 5073] mkdir("./file0", 0777 [pid 5071] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5069] <... openat resumed>) = 5 [pid 5073] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5072] <... sendfile resumed> => [640], 571) = 518 [pid 5071] mount("/dev/loop2", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5069] chdir("./file0" [pid 5066] <... ioctl resumed>) = 0 [pid 5073] mount("/dev/loop3", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5072] memfd_create("syzkaller", 0 [pid 5064] <... sendfile resumed> => [640], 571) = 518 [pid 5069] <... chdir resumed>) = 0 [pid 5072] <... memfd_create resumed>) = 5 [pid 5069] ioctl(6, LOOP_CLR_FD [pid 5066] close(5 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5064] memfd_create("syzkaller", 0 [pid 5072] <... mmap resumed>) = 0x7fcad0467000 [pid 5069] close(6 [pid 5066] mkdir("./file0", 0777 [pid 5069] <... close resumed>) = 0 [pid 5066] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5064] <... memfd_create resumed>) = 5 [ 76.449229][ T5066] loop1: detected capacity change from 0 to 4096 [ 76.451299][ T5072] syz-executor261 (5072): drop_caches: 3 [ 76.458284][ T5064] syz-executor261 (5064): drop_caches: 3 [pid 5069] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] mount("/dev/loop1", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5069] <... open resumed>) = 6 [pid 5069] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5073] <... mount resumed>) = 0 [pid 5071] <... mount resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... openat resumed>) = 5 [pid 5073] chdir("./file0" [ 76.504709][ T5073] ntfs: volume version 3.1. [ 76.509989][ T5071] ntfs: volume version 3.1. [pid 5071] <... openat resumed>) = 5 [pid 5073] <... chdir resumed>) = 0 [pid 5073] ioctl(6, LOOP_CLR_FD [pid 5072] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5073] <... ioctl resumed>) = 0 [pid 5071] chdir("./file0" [pid 5073] close(6 [pid 5071] <... chdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] ioctl(6, LOOP_CLR_FD [pid 5073] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5071] <... ioctl resumed>) = 0 [pid 5071] close(6) = 0 [pid 5071] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 6 [pid 5071] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5073] <... open resumed>) = 6 [pid 5073] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5069] <... write resumed>) = 20 [pid 5069] exit_group(0) = ? [pid 5073] <... write resumed>) = 20 [pid 5071] <... write resumed>) = 20 [pid 5069] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=47 /* 0.47 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] exit_group(0 [pid 5071] exit_group(0 [pid 5068] <... openat resumed>) = 3 [pid 5073] <... exit_group resumed>) = ? [pid 5071] <... exit_group resumed>) = ? [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3 [pid 5073] +++ exited with 0 +++ [pid 5071] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=48 /* 0.48 s */} --- [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=43 /* 0.43 s */} --- [pid 5064] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 76.586105][ T5066] ntfs: volume version 3.1. [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5076 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached [pid 5063] <... openat resumed>) = 3 [pid 5076] set_robust_list(0x555556679660, 24 [pid 5063] ioctl(3, LOOP_CLR_FD) = 0 [pid 5063] close(3 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5077 [pid 5063] <... close resumed>) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5077 attached [pid 5076] <... set_robust_list resumed>) = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] set_robust_list(0x555556679660, 24 [pid 5076] <... prctl resumed>) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5078 [pid 5077] <... prctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5077] setpgid(0, 0 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3./strace-static-x86_64: Process 5078 attached [pid 5077] <... setpgid resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5072] <... write resumed>) = 2097152 [pid 5078] set_robust_list(0x555556679660, 24 [pid 5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5078] <... set_robust_list resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... openat resumed>) = 3 [pid 5072] munmap(0x7fcad0467000, 138412032 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5072] <... munmap resumed>) = 0 [pid 5078] <... prctl resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 4 [pid 5078] setpgid(0, 0 [pid 5077] write(3, "1000", 4 [pid 5076] sendfile(4, 3, [122] [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... mount resumed>) = 0 [pid 5064] <... write resumed>) = 2097152 [pid 5078] <... setpgid resumed>) = 0 [pid 5077] <... write resumed>) = 4 [pid 5072] <... openat resumed>) = 6 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] close(3 [pid 5072] ioctl(6, LOOP_SET_FD, 5 [pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5064] munmap(0x7fcad0467000, 138412032 [pid 5078] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5072] <... ioctl resumed>) = 0 [pid 5066] <... openat resumed>) = 5 [pid 5077] <... openat resumed>) = 3 [pid 5066] chdir("./file0" [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5066] <... chdir resumed>) = 0 [pid 5064] <... munmap resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5078] <... openat resumed>) = 3 [pid 5066] ioctl(6, LOOP_CLR_FD [pid 5078] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5066] <... ioctl resumed>) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5077] <... openat resumed>) = 4 [pid 5078] sendfile(4, 3, [122] [pid 5077] sendfile(4, 3, [122] [pid 5066] close(6) = 0 [pid 5066] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5064] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] close(5) = 0 [pid 5072] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5072] mount("/dev/loop4", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5066] <... open resumed>) = 6 [pid 5064] <... openat resumed>) = 6 [ 76.697098][ T5072] loop4: detected capacity change from 0 to 4096 [pid 5066] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5064] ioctl(6, LOOP_SET_FD, 5) = 0 [pid 5066] <... write resumed>) = 20 [pid 5064] close(5 [pid 5066] exit_group(0 [pid 5064] <... close resumed>) = 0 [pid 5066] <... exit_group resumed>) = ? [pid 5064] mkdir("./file0", 0777 [pid 5066] +++ exited with 0 +++ [pid 5064] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5064] mount("/dev/loop0", "./file0", "ntfs", 0, "errors=continue,errors=continue,utf8,errors=recover,fmask=00000000000017777777777,dmask=000000000040"... [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=57 /* 0.57 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5079 ./strace-static-x86_64: Process 5079 attached [pid 5079] set_robust_list(0x555556679660, 24) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [ 76.758792][ T5064] loop0: detected capacity change from 0 to 4096 [ 76.778490][ T5072] ntfs: volume version 3.1. [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5079] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5079] sendfile(4, 3, [122] [pid 5072] <... mount resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5072] chdir("./file0") = 0 [ 76.844745][ T5064] ntfs: volume version 3.1. [pid 5072] ioctl(6, LOOP_CLR_FD) = 0 [pid 5072] close(6) = 0 [pid 5072] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 6 [pid 5072] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5072] exit_group(0) = ? [pid 5072] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=59 /* 0.59 s */} --- [pid 5064] <... mount resumed>) = 0 [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5064] <... openat resumed>) = 5 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] chdir("./file0" [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5080 [pid 5064] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x555556679660, 24) = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] ioctl(6, LOOP_CLR_FD [pid 5080] setpgid(0, 0 [pid 5064] <... ioctl resumed>) = 0 [pid 5080] <... setpgid resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5064] close(6 [pid 5080] <... openat resumed>) = 3 [pid 5064] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5064] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5080] <... openat resumed>) = 4 [pid 5080] sendfile(4, 3, [122] [pid 5064] <... open resumed>) = 6 [pid 5064] write(6, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5064] exit_group(0) = ? [pid 5064] +++ exited with 0 +++ [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=61 /* 0.61 s */} --- [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5061] close(3) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5081 ./strace-static-x86_64: Process 5081 attached [pid 5081] set_robust_list(0x555556679660, 24) = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 77.232588][ T5076] syz-executor261 (5076): drop_caches: 3 [ 77.245562][ T5078] syz-executor261 (5078): drop_caches: 3 [ 77.291558][ T5077] syz-executor261 (5077): drop_caches: 3 [ 77.449120][ T5079] syz-executor261 (5079): drop_caches: 3 [ 77.580999][ T5080] syz-executor261 (5080): drop_caches: 3 [ 77.677494][ T5081] syz-executor261 (5081): drop_caches: 3 [ 77.710364][ T5076] syz-executor261 (5076): drop_caches: 3 [pid 5081] sendfile(4, 3, [122] [pid 5076] <... sendfile resumed> => [693], 571) = 571 [pid 5076] memfd_create("syzkaller", 0) = 5 [pid 5077] <... sendfile resumed> => [693], 571) = 571 [ 77.734193][ T5077] syz-executor261 (5077): drop_caches: 3 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] memfd_create("syzkaller", 0 [pid 5076] <... mmap resumed>) = 0x7fcad0467000 [pid 5077] <... memfd_create resumed>) = 5 [pid 5078] <... sendfile resumed> => [693], 571) = 571 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5078] memfd_create("syzkaller", 0) = 5 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 77.795379][ T5078] syz-executor261 (5078): drop_caches: 3 [pid 5076] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] <... write resumed>) = 2097152 [pid 5076] <... write resumed>) = 2097152 [pid 5079] <... sendfile resumed> => [693], 571) = 571 [pid 5078] munmap(0x7fcad0467000, 138412032 [pid 5077] <... write resumed>) = 2097152 [pid 5076] munmap(0x7fcad0467000, 138412032 [pid 5077] munmap(0x7fcad0467000, 138412032 [pid 5078] <... munmap resumed>) = 0 [pid 5079] memfd_create("syzkaller", 0 [pid 5076] <... munmap resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] <... munmap resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5079] <... memfd_create resumed>) = 5 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5080] <... sendfile resumed> => [693], 571) = 571 [pid 5078] <... openat resumed>) = 6 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... openat resumed>) = 6 [pid 5078] ioctl(6, LOOP_SET_FD, 5 [pid 5077] <... openat resumed>) = 6 [pid 5076] ioctl(6, LOOP_SET_FD, 5 [pid 5078] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5077] ioctl(6, LOOP_SET_FD, 5 [pid 5078] ioctl(6, LOOP_CLR_FD [pid 5077] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5077] ioctl(6, LOOP_CLR_FD [pid 5076] ioctl(6, LOOP_CLR_FD [pid 5078] <... ioctl resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 5076] <... ioctl resumed>) = 0 [ 77.956431][ T5079] syz-executor261 (5079): drop_caches: 3 [ 77.992948][ T5080] syz-executor261 (5080): drop_caches: 3 [pid 5080] memfd_create("syzkaller", 0 [pid 5076] ioctl(6, LOOP_SET_FD, 5 [pid 5077] ioctl(6, LOOP_SET_FD, 5 [pid 5081] <... sendfile resumed> => [693], 571) = 571 [pid 5080] <... memfd_create resumed>) = 5 [pid 5078] ioctl(6, LOOP_SET_FD, 5 [pid 5077] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5077] close(6 [pid 5076] close(6 [pid 5080] <... mmap resumed>) = 0x7fcad0467000 [pid 5079] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] close(6 [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5077] close(5 [pid 5081] memfd_create("syzkaller", 0 [pid 5078] <... close resumed>) = 0 [pid 5076] close(5 [pid 5078] close(5 [pid 5081] <... memfd_create resumed>) = 5 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5077] <... close resumed>) = 0 [ 78.023446][ T5081] syz-executor261 (5081): drop_caches: 3 [pid 5077] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5078] <... close resumed>) = 0 [pid 5077] <... open resumed>) = 5 [pid 5077] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5076] <... close resumed>) = 0 [pid 5078] <... open resumed>) = 5 [pid 5076] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5078] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5076] <... open resumed>) = 5 [pid 5076] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5081] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5077] <... write resumed>) = 20 [pid 5076] <... write resumed>) = 20 [pid 5077] exit_group(0) = ? [pid 5076] exit_group(0 [pid 5077] +++ exited with 0 +++ [pid 5079] <... write resumed>) = 2097152 [pid 5078] <... write resumed>) = 20 [pid 5076] <... exit_group resumed>) = ? [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5078] exit_group(0 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5079] munmap(0x7fcad0467000, 138412032 [pid 5078] <... exit_group resumed>) = ? [pid 5065] <... ioctl resumed>) = 0 [pid 5078] +++ exited with 0 +++ [pid 5065] close(3) = 0 [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... restart_syscall resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5082 ./strace-static-x86_64: Process 5082 attached [pid 5082] set_robust_list(0x555556679660, 24 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5082] <... set_robust_list resumed>) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... openat resumed>) = 3 [pid 5079] <... munmap resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5082] <... prctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5063] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 6 [pid 5063] ioctl(3, LOOP_CLR_FD) = 0 [pid 5063] close(3 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] ioctl(6, LOOP_SET_FD, 5 [pid 5063] <... close resumed>) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] write(3, "1000", 4 [pid 5079] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] ioctl(6, LOOP_CLR_FD [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5083 [pid 5082] <... write resumed>) = 4 [pid 5079] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5083 attached [pid 5082] close(3 [pid 5083] set_robust_list(0x555556679660, 24 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5084 [pid 5082] <... close resumed>) = 0 [pid 5083] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5084 attached [pid 5079] ioctl(6, LOOP_SET_FD, 5 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5079] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] set_robust_list(0x555556679660, 24 [pid 5083] <... prctl resumed>) = 0 [pid 5079] close(6 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5083] setpgid(0, 0 [pid 5082] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... setpgid resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5079] close(5 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] <... openat resumed>) = 4 [pid 5082] sendfile(4, 3, [122] [pid 5083] <... openat resumed>) = 3 [pid 5084] <... prctl resumed>) = 0 [pid 5083] write(3, "1000", 4 [pid 5081] <... write resumed>) = 2097152 [pid 5084] setpgid(0, 0 [pid 5083] <... write resumed>) = 4 [pid 5084] <... setpgid resumed>) = 0 [pid 5083] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5081] munmap(0x7fcad0467000, 138412032 [pid 5080] <... write resumed>) = 2097152 [pid 5079] <... close resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5083] sendfile(4, 3, [122] [pid 5084] <... openat resumed>) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3 [pid 5079] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5084] <... close resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5079] <... open resumed>) = 5 [pid 5081] <... munmap resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] munmap(0x7fcad0467000, 138412032 [pid 5084] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 6 [pid 5080] <... munmap resumed>) = 0 [pid 5079] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5081] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5081] ioctl(6, LOOP_CLR_FD [pid 5084] <... openat resumed>) = 4 [pid 5081] <... ioctl resumed>) = 0 [pid 5084] sendfile(4, 3, [122] [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... write resumed>) = 20 [pid 5081] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5080] <... openat resumed>) = 6 [pid 5079] exit_group(0 [pid 5081] close(6 [pid 5079] <... exit_group resumed>) = ? [pid 5081] <... close resumed>) = 0 [pid 5081] close(5 [pid 5080] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5080] ioctl(6, LOOP_CLR_FD) = 0 [pid 5080] ioctl(6, LOOP_SET_FD, 5 [pid 5079] +++ exited with 0 +++ [pid 5080] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] close(6) = 0 [pid 5080] close(5) = 0 [pid 5080] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5080] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x555556679660, 24 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5085 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setpgid(0, 0 [pid 5080] <... write resumed>) = 20 [pid 5085] <... setpgid resumed>) = 0 [pid 5080] exit_group(0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... exit_group resumed>) = ? [pid 5085] <... openat resumed>) = 3 [pid 5085] write(3, "1000", 4 [pid 5080] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3 [pid 5085] <... write resumed>) = 4 [pid 5067] <... close resumed>) = 0 [pid 5085] close(3 [pid 5081] <... close resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5086 [pid 5085] <... openat resumed>) = 4 [pid 5081] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5085] sendfile(4, 3, [122]./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x555556679660, 24 [pid 5081] <... open resumed>) = 5 [pid 5081] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... write resumed>) = 20 [pid 5081] exit_group(0 [pid 5086] <... openat resumed>) = 3 [pid 5086] write(3, "1000", 4 [pid 5081] <... exit_group resumed>) = ? [pid 5086] <... write resumed>) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5081] +++ exited with 0 +++ [pid 5086] sendfile(4, 3, [122] [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5061] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5061] close(3) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5087] set_robust_list(0x555556679660, 24) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] setpgid(0, 0) = 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5087] write(3, "1000", 4) = 4 [pid 5087] close(3) = 0 [pid 5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 78.755377][ T5082] syz-executor261 (5082): drop_caches: 3 [ 78.839106][ T5083] syz-executor261 (5083): drop_caches: 3 [ 78.871202][ T5084] syz-executor261 (5084): drop_caches: 3 [ 78.879148][ T5085] syz-executor261 (5085): drop_caches: 3 [ 78.947010][ T5086] syz-executor261 (5086): drop_caches: 3 [ 79.110871][ T5087] syz-executor261 (5087): drop_caches: 3 [ 79.334523][ T5082] syz-executor261 (5082): drop_caches: 3 [pid 5087] sendfile(4, 3, [122] [pid 5082] <... sendfile resumed> => [693], 571) = 571 [pid 5082] memfd_create("syzkaller", 0) = 5 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5083] <... sendfile resumed> => [693], 571) = 571 [ 79.410812][ T5083] syz-executor261 (5083): drop_caches: 3 [pid 5083] memfd_create("syzkaller", 0) = 5 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5085] <... sendfile resumed> => [693], 571) = 571 [pid 5085] memfd_create("syzkaller", 0 [pid 5084] <... sendfile resumed> => [693], 571) = 571 [ 79.472850][ T5084] syz-executor261 (5084): drop_caches: 3 [ 79.498111][ T5085] syz-executor261 (5085): drop_caches: 3 [pid 5082] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5085] <... memfd_create resumed>) = 5 [pid 5084] memfd_create("syzkaller", 0 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5084] <... memfd_create resumed>) = 5 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5086] <... sendfile resumed> => [693], 571) = 571 [ 79.531037][ T5086] syz-executor261 (5086): drop_caches: 3 [pid 5086] memfd_create("syzkaller", 0) = 5 [pid 5083] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] <... write resumed>) = 2097152 [pid 5086] <... mmap resumed>) = 0x7fcad0467000 [pid 5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5084] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5082] munmap(0x7fcad0467000, 138412032) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... write resumed>) = 2097152 [pid 5082] <... openat resumed>) = 6 [pid 5082] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5082] ioctl(6, LOOP_CLR_FD [pid 5087] <... sendfile resumed> => [693], 571) = 571 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5083] munmap(0x7fcad0467000, 138412032 [pid 5082] close(6 [pid 5083] <... munmap resumed>) = 0 [pid 5082] <... close resumed>) = 0 [ 79.688839][ T5087] syz-executor261 (5087): drop_caches: 3 [pid 5087] memfd_create("syzkaller", 0 [pid 5086] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5083] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5082] close(5 [pid 5087] <... memfd_create resumed>) = 5 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5085] <... write resumed>) = 2097152 [pid 5083] <... openat resumed>) = 6 [pid 5083] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5082] <... close resumed>) = 0 [pid 5085] munmap(0x7fcad0467000, 138412032 [pid 5083] ioctl(6, LOOP_CLR_FD) = 0 [pid 5085] <... munmap resumed>) = 0 [pid 5084] <... write resumed>) = 2097152 [pid 5082] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5083] ioctl(6, LOOP_SET_FD, 5 [pid 5084] munmap(0x7fcad0467000, 138412032 [pid 5083] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] close(6) = 0 [pid 5083] close(5 [pid 5085] <... openat resumed>) = 6 [pid 5082] <... open resumed>) = 5 [pid 5085] ioctl(6, LOOP_SET_FD, 5 [pid 5084] <... munmap resumed>) = 0 [pid 5082] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5086] <... write resumed>) = 2097152 [pid 5085] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5086] munmap(0x7fcad0467000, 138412032 [pid 5084] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5083] <... close resumed>) = 0 [pid 5082] <... write resumed>) = 20 [pid 5082] exit_group(0 [pid 5085] ioctl(6, LOOP_CLR_FD [pid 5084] <... openat resumed>) = 6 [pid 5082] <... exit_group resumed>) = ? [pid 5086] <... munmap resumed>) = 0 [pid 5085] <... ioctl resumed>) = 0 [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5083] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5082] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] ioctl(6, LOOP_CLR_FD [pid 5083] <... open resumed>) = 5 [pid 5065] close(3 [pid 5086] <... openat resumed>) = 6 [pid 5084] <... ioctl resumed>) = 0 [pid 5083] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5065] <... close resumed>) = 0 [pid 5086] ioctl(6, LOOP_SET_FD, 5 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] ioctl(6, LOOP_CLR_FD [pid 5085] ioctl(6, LOOP_SET_FD, 5 [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5086] <... ioctl resumed>) = 0 [pid 5085] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5090 attached [pid 5085] close(6 [pid 5084] close(6 [pid 5083] <... write resumed>) = 20 [pid 5090] set_robust_list(0x555556679660, 24 [pid 5085] <... close resumed>) = 0 [pid 5084] <... close resumed>) = 0 [pid 5083] exit_group(0 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5085] close(5 [pid 5084] close(5 [pid 5083] <... exit_group resumed>) = ? [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5090 [pid 5086] ioctl(6, LOOP_SET_FD, 5 [pid 5083] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=33 /* 0.33 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5086] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] <... ioctl resumed>) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] close(6 [pid 5068] close(3 [pid 5090] <... prctl resumed>) = 0 [pid 5086] <... close resumed>) = 0 [pid 5084] <... close resumed>) = 0 [pid 5090] setpgid(0, 0 [pid 5087] <... write resumed>) = 2097152 [pid 5086] close(5 [pid 5085] <... close resumed>) = 0 [pid 5084] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] <... close resumed>) = 0 [pid 5090] <... setpgid resumed>) = 0 [pid 5087] munmap(0x7fcad0467000, 138412032 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5091 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] <... munmap resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5084] <... open resumed>) = 5 [pid 5085] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5091 attached [pid 5091] set_robust_list(0x555556679660, 24 [pid 5090] write(3, "1000", 4 [pid 5085] <... open resumed>) = 5 [pid 5084] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5090] <... write resumed>) = 4 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5086] <... close resumed>) = 0 [pid 5085] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] close(3 [pid 5091] <... prctl resumed>) = 0 [pid 5090] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = 6 [pid 5091] setpgid(0, 0 [pid 5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5091] <... setpgid resumed>) = 0 [pid 5087] ioctl(6, LOOP_SET_FD, 5 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... openat resumed>) = 3 [pid 5087] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] <... write resumed>) = 20 [pid 5084] <... write resumed>) = 20 [pid 5084] exit_group(0 [pid 5087] ioctl(6, LOOP_CLR_FD [pid 5085] exit_group(0 [pid 5084] <... exit_group resumed>) = ? [pid 5085] <... exit_group resumed>) = ? [pid 5084] +++ exited with 0 +++ [pid 5087] <... ioctl resumed>) = 0 [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=33 /* 0.33 s */} --- [pid 5063] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5091] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5085] +++ exited with 0 +++ [pid 5063] <... openat resumed>) = 3 [pid 5091] write(3, "1000", 4 [pid 5090] <... openat resumed>) = 4 [pid 5087] ioctl(6, LOOP_SET_FD, 5 [pid 5086] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5091] <... write resumed>) = 4 [pid 5087] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] close(6 [pid 5086] <... open resumed>) = 5 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=29 /* 0.29 s */} --- [pid 5091] close(3 [pid 5090] sendfile(4, 3, [122] [pid 5087] <... close resumed>) = 0 [pid 5086] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5091] <... close resumed>) = 0 [pid 5063] ioctl(3, LOOP_CLR_FD) = 0 [pid 5091] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5087] close(5 [pid 5063] close(3 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5063] <... close resumed>) = 0 [pid 5062] <... openat resumed>) = 3 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5062] close(3) = 0 [pid 5091] <... openat resumed>) = 3 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached [pid 5091] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5092] set_robust_list(0x555556679660, 24 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5092 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5091] <... openat resumed>) = 4 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5093 ./strace-static-x86_64: Process 5093 attached [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] sendfile(4, 3, [122] [pid 5093] set_robust_list(0x555556679660, 24 [pid 5092] <... prctl resumed>) = 0 [pid 5093] <... set_robust_list resumed>) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5092] <... close resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5086] <... write resumed>) = 20 [pid 5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5093] <... prctl resumed>) = 0 [pid 5086] exit_group(0 [pid 5093] setpgid(0, 0 [pid 5086] <... exit_group resumed>) = ? [pid 5093] <... setpgid resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] <... openat resumed>) = 3 [pid 5086] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5093] <... openat resumed>) = 3 [pid 5092] <... openat resumed>) = 4 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5093] write(3, "1000", 4) = 4 [pid 5087] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5093] close(3 [pid 5087] <... open resumed>) = 5 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5093] <... close resumed>) = 0 [pid 5092] sendfile(4, 3, [122] [pid 5087] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5067] <... openat resumed>) = 3 [pid 5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5087] <... write resumed>) = 20 [pid 5093] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5087] exit_group(0 [pid 5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5087] <... exit_group resumed>) = ? [pid 5067] close(3 [pid 5093] <... openat resumed>) = 4 [pid 5093] sendfile(4, 3, [122] [pid 5067] <... close resumed>) = 0 [pid 5087] +++ exited with 0 +++ [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5094 attached [pid 5094] set_robust_list(0x555556679660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5094 [pid 5061] <... openat resumed>) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5061] close(3) = 0 [pid 5094] <... prctl resumed>) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5095 ./strace-static-x86_64: Process 5095 attached [pid 5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5094] sendfile(4, 3, [122] [pid 5095] set_robust_list(0x555556679660, 24) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 80.404522][ T5090] syz-executor261 (5090): drop_caches: 3 [ 80.449711][ T5092] syz-executor261 (5092): drop_caches: 3 [ 80.467999][ T5091] syz-executor261 (5091): drop_caches: 3 [ 80.604534][ T5094] syz-executor261 (5094): drop_caches: 3 [ 80.634420][ T5095] syz-executor261 (5095): drop_caches: 3 [ 80.656482][ T5093] syz-executor261 (5093): drop_caches: 3 [pid 5095] sendfile(4, 3, [122] [pid 5090] <... sendfile resumed> => [693], 571) = 571 [pid 5090] memfd_create("syzkaller", 0) = 5 [ 80.909523][ T5090] syz-executor261 (5090): drop_caches: 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5092] <... sendfile resumed> => [693], 571) = 571 [ 81.026974][ T5092] syz-executor261 (5092): drop_caches: 3 [ 81.064643][ T5093] syz-executor261 (5093): drop_caches: 3 [pid 5090] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5092] memfd_create("syzkaller", 0) = 5 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5093] <... sendfile resumed> => [693], 571) = 571 [pid 5093] memfd_create("syzkaller", 0 [pid 5091] <... sendfile resumed> => [693], 571) = 571 [ 81.073388][ T5091] syz-executor261 (5091): drop_caches: 3 [pid 5091] memfd_create("syzkaller", 0 [pid 5093] <... memfd_create resumed>) = 5 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... write resumed>) = 2097152 [pid 5093] <... mmap resumed>) = 0x7fcad0467000 [pid 5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5091] <... memfd_create resumed>) = 5 [pid 5090] munmap(0x7fcad0467000, 138412032 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5090] <... munmap resumed>) = 0 [pid 5091] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 81.142184][ T5094] syz-executor261 (5094): drop_caches: 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5094] <... sendfile resumed> => [693], 571) = 571 [pid 5094] memfd_create("syzkaller", 0) = 5 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5095] <... sendfile resumed> => [693], 571) = 571 [pid 5094] <... mmap resumed>) = 0x7fcad0467000 [pid 5090] <... openat resumed>) = 6 [pid 5095] memfd_create("syzkaller", 0 [pid 5093] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5090] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5090] ioctl(6, LOOP_CLR_FD) = 0 [pid 5095] <... memfd_create resumed>) = 5 [pid 5090] ioctl(6, LOOP_SET_FD, 5 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] <... mmap resumed>) = 0x7fcad0467000 [pid 5090] close(6) = 0 [ 81.187124][ T5095] syz-executor261 (5095): drop_caches: 3 [pid 5090] close(5 [pid 5092] <... write resumed>) = 2097152 [pid 5092] munmap(0x7fcad0467000, 138412032) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5091] <... write resumed>) = 2097152 [pid 5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5092] <... openat resumed>) = 6 [pid 5090] <... close resumed>) = 0 [pid 5092] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5093] <... write resumed>) = 2097152 [pid 5092] ioctl(6, LOOP_CLR_FD [pid 5090] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5092] <... ioctl resumed>) = 0 [pid 5093] munmap(0x7fcad0467000, 138412032 [pid 5091] munmap(0x7fcad0467000, 138412032 [pid 5090] <... open resumed>) = 5 [pid 5091] <... munmap resumed>) = 0 [pid 5092] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5090] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5092] close(6 [pid 5093] <... munmap resumed>) = 0 [pid 5092] <... close resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5092] close(5 [pid 5090] <... write resumed>) = 20 [pid 5093] ioctl(6, LOOP_SET_FD, 5 [pid 5090] exit_group(0 [pid 5093] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5090] <... exit_group resumed>) = ? [pid 5093] ioctl(6, LOOP_CLR_FD [pid 5091] <... openat resumed>) = 6 [pid 5091] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5091] ioctl(6, LOOP_CLR_FD) = 0 [pid 5091] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5091] close(6) = 0 [pid 5091] close(5 [pid 5093] <... ioctl resumed>) = 0 [pid 5094] <... write resumed>) = 2097152 [pid 5093] ioctl(6, LOOP_SET_FD, 5 [pid 5090] +++ exited with 0 +++ [pid 5093] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=33 /* 0.33 s */} --- [pid 5095] <... write resumed>) = 2097152 [pid 5093] close(6 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5094] munmap(0x7fcad0467000, 138412032 [pid 5093] <... close resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5093] close(5 [pid 5094] <... munmap resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] munmap(0x7fcad0467000, 138412032 [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5091] <... close resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5096 ./strace-static-x86_64: Process 5096 attached [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5096] set_robust_list(0x555556679660, 24 [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] ioctl(6, LOOP_CLR_FD) = 0 [pid 5091] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0 [pid 5095] <... munmap resumed>) = 0 [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5091] <... open resumed>) = 5 [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5092] <... close resumed>) = 0 [pid 5091] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] <... openat resumed>) = 6 [pid 5094] close(6 [pid 5092] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] ioctl(6, LOOP_SET_FD, 5 [pid 5094] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = 3 [pid 5095] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] close(5 [pid 5092] <... open resumed>) = 5 [pid 5096] write(3, "1000", 4 [pid 5095] ioctl(6, LOOP_CLR_FD [pid 5093] <... close resumed>) = 0 [pid 5092] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5091] <... write resumed>) = 20 [pid 5095] <... ioctl resumed>) = 0 [pid 5091] exit_group(0) = ? [pid 5096] <... write resumed>) = 4 [pid 5096] close(3) = 0 [pid 5092] <... write resumed>) = 20 [pid 5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5092] exit_group(0 [pid 5095] ioctl(6, LOOP_SET_FD, 5 [pid 5096] <... openat resumed>) = 3 [pid 5095] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5095] close(6 [pid 5093] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5092] <... exit_group resumed>) = ? [pid 5095] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = 4 [pid 5096] sendfile(4, 3, [122] [pid 5095] close(5 [pid 5093] <... open resumed>) = 5 [pid 5094] <... close resumed>) = 0 [pid 5094] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [ 81.468071][ T47] [ 81.470451][ T47] ====================================================== [ 81.477568][ T47] WARNING: possible circular locking dependency detected [ 81.484619][ T47] 6.7.0-rc8-syzkaller #0 Not tainted [ 81.489919][ T47] ------------------------------------------------------ [ 81.497143][ T47] kworker/u4:3/47 is trying to acquire lock: [ 81.503158][ T47] ffff8880767ad180 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1a98/0x2430 [ 81.512088][ T47] [ 81.512088][ T47] but task is already holding lock: [ 81.519553][ T47] ffff8880765ec350 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 81.529619][ T47] [ 81.529619][ T47] which lock already depends on the new lock. [ 81.529619][ T47] [ 81.541085][ T47] [ 81.541085][ T47] the existing dependency chain (in reverse order) is: [ 81.550732][ T47] [ 81.550732][ T47] -> #1 (&ni->mrec_lock){+.+.}-{3:3}: [ 81.558676][ T47] __mutex_lock+0x175/0x9d0 [pid 5094] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5091] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5097 [pid 5092] +++ exited with 0 +++ [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [ 81.563745][ T47] map_mft_record+0x4a/0x730 [ 81.569713][ T47] ntfs_attr_extend_allocation+0x268/0x3840 [ 81.576609][ T47] ntfs_file_write_iter+0xaa0/0x2070 [ 81.582537][ T47] vfs_write+0x64f/0xdf0 [ 81.587336][ T47] ksys_write+0x12f/0x250 [ 81.592358][ T47] do_syscall_64+0x40/0x110 [ 81.597417][ T47] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 81.603877][ T47] [ 81.603877][ T47] -> #0 (&rl->lock){++++}-{3:3}: [ 81.611020][ T47] __lock_acquire+0x2433/0x3b20 [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5094] <... write resumed>) = 20 [pid 5094] exit_group(0 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5094] <... exit_group resumed>) = ? [pid 5063] <... ioctl resumed>) = 0 [pid 5094] +++ exited with 0 +++ [pid 5063] close(3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=34 /* 0.34 s */} --- [pid 5063] <... close resumed>) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5099 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5098 [ 81.616427][ T47] lock_acquire+0x1ae/0x520 [ 81.621551][ T47] down_read+0x9a/0x330 [ 81.626272][ T47] ntfs_read_folio+0x1a98/0x2430 [ 81.631764][ T47] filemap_read_folio+0xe9/0x2c0 [ 81.637259][ T47] do_read_cache_folio+0x205/0x540 [ 81.642975][ T47] read_cache_page+0x5b/0x160 [ 81.648246][ T47] ntfs_sync_mft_mirror+0x242/0x1ed0 [ 81.654093][ T47] write_mft_record_nolock+0x1977/0x1da0 [ 81.660458][ T47] write_mft_record+0x14b/0x380 [pid 5095] <... close resumed>) = 0 [pid 5095] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5095] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5095] exit_group(0) = ? [pid 5095] +++ exited with 0 +++ [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=33 /* 0.33 s */} --- [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5061] close(3) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5100 [ 81.665858][ T47] __ntfs_write_inode+0x91b/0xc30 [ 81.671541][ T47] __writeback_single_inode+0xa91/0xe90 [ 81.677725][ T47] writeback_sb_inodes+0x599/0x1080 [ 81.683647][ T47] __writeback_inodes_wb+0xff/0x2d0 [ 81.689397][ T47] wb_writeback+0x7f8/0xaa0 [ 81.694453][ T47] wb_workfn+0x87c/0xfe0 [ 81.699249][ T47] process_one_work+0x886/0x15d0 [ 81.704755][ T47] worker_thread+0x8b9/0x1290 [ 81.709989][ T47] kthread+0x2c6/0x3a0 [pid 5093] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5093] exit_group(0) = ? [pid 5093] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=35 /* 0.35 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached [pid 5101] set_robust_list(0x555556679660, 24) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] write(3, "1000", 4) = 4 [pid 5101] close(3) = 0 [pid 5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5101 [pid 5101] <... openat resumed>) = 4 [ 81.714701][ T47] ret_from_fork+0x45/0x80 [ 81.719750][ T47] ret_from_fork_asm+0x11/0x20 [ 81.725097][ T47] [ 81.725097][ T47] other info that might help us debug this: [ 81.725097][ T47] [ 81.735353][ T47] Possible unsafe locking scenario: [ 81.735353][ T47] [ 81.742818][ T47] CPU0 CPU1 [ 81.748235][ T47] ---- ---- [ 81.753695][ T47] lock(&ni->mrec_lock); [ 81.758060][ T47] lock(&rl->lock); [ 81.764597][ T47] lock(&ni->mrec_lock); [ 81.771644][ T47] rlock(&rl->lock); [ 81.775674][ T47] [ 81.775674][ T47] *** DEADLOCK *** [ 81.775674][ T47] [ 81.783911][ T47] 4 locks held by kworker/u4:3/47: [ 81.789123][ T47] #0: ffff888014286538 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 [ 81.799869][ T47] #1: ffffc90000d8fd80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 [ 81.811763][ T47] #2: ffff8880240040e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x1e/0xf0 [ 81.823496][ T47] #3: ffff8880765ec350 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 81.833026][ T47] [ 81.833026][ T47] stack backtrace: [ 81.839710][ T47] CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted 6.7.0-rc8-syzkaller #0 [ 81.847965][ T47] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 81.858040][ T47] Workqueue: writeback wb_workfn (flush-7:5) [ 81.864063][ T47] Call Trace: [ 81.867535][ T47] [ 81.871437][ T47] dump_stack_lvl+0xd9/0x1b0 [ 81.876151][ T47] check_noncircular+0x317/0x400 [ 81.881123][ T47] ? print_circular_bug+0x5c0/0x5c0 [ 81.886352][ T47] ? lockdep_lock+0xc6/0x200 [ 81.890976][ T47] ? hlock_class+0x130/0x130 [ 81.895601][ T47] __lock_acquire+0x2433/0x3b20 [ 81.900516][ T47] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 81.906629][ T47] lock_acquire+0x1ae/0x520 [ 81.911177][ T47] ? ntfs_read_folio+0x1a98/0x2430 [pid 5101] sendfile(4, 3, [122]./strace-static-x86_64: Process 5097 attached [pid 5097] set_robust_list(0x555556679660, 24) = 0 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5097] setpgid(0, 0) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 81.916503][ T47] ? lock_sync+0x190/0x190 [ 81.920963][ T47] ? find_held_lock+0x2d/0x110 [ 81.925852][ T47] ? preempt_count_sub+0x160/0x160 [ 81.931428][ T47] down_read+0x9a/0x330 [ 81.935613][ T47] ? ntfs_read_folio+0x1a98/0x2430 [ 81.940752][ T47] ? rwsem_down_read_slowpath+0xb20/0xb20 [ 81.946497][ T47] ? mark_held_locks+0x9f/0xe0 [ 81.951299][ T47] ? _raw_read_unlock_irqrestore+0x4e/0x70 [ 81.957139][ T47] ntfs_read_folio+0x1a98/0x2430 [ 81.962110][ T47] ? __print_lock_name+0x200/0x260 [pid 5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 81.967278][ T47] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 81.973465][ T47] ? folio_add_lru+0x451/0x7f0 [ 81.975197][ T5096] syz-executor261 (5096): drop_caches: 3 [ 81.978362][ T47] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 81.978391][ T47] filemap_read_folio+0xe9/0x2c0 [ 81.978419][ T47] ? __folio_lock_killable+0x20/0x20 [ 82.000433][ T47] ? __filemap_get_folio+0x2b0/0xaa0 [ 82.005762][ T47] ? find_held_lock+0x2d/0x110 [ 82.010562][ T47] do_read_cache_folio+0x205/0x540 [pid 5097] sendfile(4, 3, [122]./strace-static-x86_64: Process 5098 attached [pid 5098] set_robust_list(0x555556679660, 24) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [ 82.016553][ T47] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 82.022732][ T47] read_cache_page+0x5b/0x160 [ 82.027543][ T47] ntfs_sync_mft_mirror+0x242/0x1ed0 [ 82.032861][ T47] ? should_fail_request+0x80/0x80 [ 82.038009][ T47] ? preempt_count_sub+0x160/0x160 [ 82.043146][ T47] ? ntfs_mft_bitmap_extend_allocation_nolock+0x1f10/0x1f10 [ 82.050476][ T47] write_mft_record_nolock+0x1977/0x1da0 [ 82.056226][ T47] ? ntfs_sync_mft_mirror+0x1ed0/0x1ed0 [ 82.061892][ T47] ? preempt_count_sub+0x160/0x160 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 82.067122][ T47] ? mark_held_locks+0x9f/0xe0 [ 82.071916][ T47] write_mft_record+0x14b/0x380 [ 82.076799][ T47] __ntfs_write_inode+0x91b/0xc30 [ 82.081944][ T47] __writeback_single_inode+0xa91/0xe90 [ 82.087529][ T47] ? __mark_inode_dirty+0xd60/0xd60 [ 82.092753][ T47] ? _raw_spin_unlock+0x28/0x40 [ 82.097630][ T47] ? wbc_attach_and_unlock_inode+0x561/0x910 [ 82.103637][ T47] writeback_sb_inodes+0x599/0x1080 [ 82.109104][ T47] ? sync_inode_metadata+0xe0/0xe0 [ 82.114333][ T47] ? find_held_lock+0x59/0x110 [ 82.119220][ T47] ? move_expired_inodes+0x59e/0x850 [ 82.124526][ T47] __writeback_inodes_wb+0xff/0x2d0 [ 82.129748][ T47] ? writeback_sb_inodes+0x1080/0x1080 [ 82.135244][ T47] ? queue_io+0x3ed/0x4e0 [ 82.139773][ T47] wb_writeback+0x7f8/0xaa0 [ 82.144392][ T47] ? __writeback_inodes_wb+0x2d0/0x2d0 [ 82.150066][ T47] ? get_nr_dirty_inodes+0x176/0x1e0 [ 82.155383][ T47] wb_workfn+0x87c/0xfe0 [ 82.159745][ T47] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 82.165772][ T47] ? inode_wait_for_writeback+0x30/0x30 [ 82.171452][ T47] ? lock_sync+0x190/0x190 [ 82.175905][ T47] ? lock_sync+0x190/0x190 [ 82.180357][ T47] process_one_work+0x886/0x15d0 [ 82.185328][ T47] ? lock_sync+0x190/0x190 [ 82.190037][ T47] ? workqueue_congested+0x300/0x300 [ 82.195356][ T47] ? assign_work+0x1a0/0x250 [ 82.199973][ T47] worker_thread+0x8b9/0x1290 [ 82.204856][ T47] ? __kthread_parkme+0x14b/0x220 [ 82.210518][ T47] ? process_one_work+0x15d0/0x15d0 [ 82.215835][ T47] kthread+0x2c6/0x3a0 [pid 5098] sendfile(4, 3, [122]./strace-static-x86_64: Process 5100 attached ./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x555556679660, 24 [pid 5100] set_robust_list(0x555556679660, 24 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... prctl resumed>) = 0 [pid 5100] <... prctl resumed>) = 0 [pid 5100] setpgid(0, 0 [pid 5099] setpgid(0, 0 [pid 5100] <... setpgid resumed>) = 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] <... openat resumed>) = 3 [pid 5099] <... openat resumed>) = 3 [pid 5100] write(3, "1000", 4 [pid 5099] write(3, "1000", 4 [pid 5100] <... write resumed>) = 4 [pid 5099] <... write resumed>) = 4 [pid 5100] close(3 [pid 5099] close(3 [pid 5100] <... close resumed>) = 0 [pid 5099] <... close resumed>) = 0 [ 82.220232][ T47] ? _raw_spin_unlock_irq+0x23/0x50 [ 82.225462][ T47] ? kthread_complete_and_exit+0x40/0x40 [ 82.231123][ T47] ret_from_fork+0x45/0x80 [ 82.235573][ T47] ? kthread_complete_and_exit+0x40/0x40 [ 82.241338][ T47] ret_from_fork_asm+0x11/0x20 [ 82.246140][ T47] [pid 5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5100] <... openat resumed>) = 3 [pid 5099] <... openat resumed>) = 3 [pid 5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5099] sendfile(4, 3, [122] [pid 5100] <... openat resumed>) = 4 [pid 5100] sendfile(4, 3, [122] [pid 5096] <... sendfile resumed> => [693], 571) = 571 [pid 5096] memfd_create("syzkaller", 0) = 5 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 82.692810][ T5097] syz-executor261 (5097): drop_caches: 3 [ 82.703187][ T5099] syz-executor261 (5099): drop_caches: 3 [ 82.720984][ T5101] syz-executor261 (5101): drop_caches: 3 [ 82.724990][ T5096] syz-executor261 (5096): drop_caches: 3 [ 82.727661][ T5098] syz-executor261 (5098): drop_caches: 3 [ 82.786555][ T5100] syz-executor261 (5100): drop_caches: 3 [pid 5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5096] munmap(0x7fcad0467000, 138412032) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5096] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5096] ioctl(6, LOOP_CLR_FD) = 0 [pid 5096] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5096] close(6) = 0 [pid 5096] close(5) = 0 [pid 5096] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5096] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5101] <... sendfile resumed> => [693], 571) = 571 [pid 5097] <... sendfile resumed> => [693], 571) = 571 [pid 5096] <... write resumed>) = 20 [pid 5097] memfd_create("syzkaller", 0) = 5 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5096] exit_group(0 [pid 5101] memfd_create("syzkaller", 0 [pid 5099] <... sendfile resumed> => [693], 571) = 571 [pid 5096] <... exit_group resumed>) = ? [pid 5100] <... sendfile resumed> => [693], 571) = 571 [pid 5098] <... sendfile resumed> => [693], 571) = 571 [pid 5099] memfd_create("syzkaller", 0 [pid 5096] +++ exited with 0 +++ [pid 5100] memfd_create("syzkaller", 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5100] <... memfd_create resumed>) = 5 [pid 5099] <... memfd_create resumed>) = 5 [pid 5098] memfd_create("syzkaller", 0 [pid 5101] <... memfd_create resumed>) = 5 [pid 5065] <... openat resumed>) = 3 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5098] <... memfd_create resumed>) = 5 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5101] <... mmap resumed>) = 0x7fcad0467000 [pid 5100] <... mmap resumed>) = 0x7fcad0467000 [pid 5099] <... mmap resumed>) = 0x7fcad0467000 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5098] <... mmap resumed>) = 0x7fcad0467000 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5102 ./strace-static-x86_64: Process 5102 attached [pid 5102] set_robust_list(0x555556679660, 24) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 83.070729][ T5099] syz-executor261 (5099): drop_caches: 3 [ 83.079430][ T5101] syz-executor261 (5101): drop_caches: 3 [ 83.079776][ T5100] syz-executor261 (5100): drop_caches: 3 [ 83.092351][ T5097] syz-executor261 (5097): drop_caches: 3 [ 83.092351][ T5098] syz-executor261 (5098): drop_caches: 3 [pid 5102] sendfile(4, 3, [122] [pid 5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5097] <... write resumed>) = 2097152 [pid 5097] munmap(0x7fcad0467000, 138412032) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5101] <... write resumed>) = 2097152 [pid 5100] <... write resumed>) = 2097152 [pid 5097] ioctl(6, LOOP_SET_FD, 5 [pid 5101] munmap(0x7fcad0467000, 138412032 [pid 5100] munmap(0x7fcad0467000, 138412032 [pid 5099] <... write resumed>) = 2097152 [pid 5097] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] <... munmap resumed>) = 0 [pid 5097] ioctl(6, LOOP_CLR_FD) = 0 [pid 5101] <... munmap resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5099] munmap(0x7fcad0467000, 138412032 [pid 5098] <... write resumed>) = 2097152 [pid 5101] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5100] <... openat resumed>) = 6 [pid 5099] <... munmap resumed>) = 0 [pid 5097] ioctl(6, LOOP_SET_FD, 5 [pid 5100] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5100] ioctl(6, LOOP_CLR_FD [pid 5098] munmap(0x7fcad0467000, 138412032 [pid 5101] <... openat resumed>) = 6 [pid 5100] <... ioctl resumed>) = 0 [pid 5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5098] <... munmap resumed>) = 0 [pid 5097] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] ioctl(6, LOOP_SET_FD, 5 [pid 5097] close(6 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5101] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] <... openat resumed>) = 6 [pid 5097] <... close resumed>) = 0 [pid 5101] ioctl(6, LOOP_CLR_FD [pid 5100] ioctl(6, LOOP_SET_FD, 5 [pid 5099] ioctl(6, LOOP_SET_FD, 5 [pid 5097] close(5 [pid 5100] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] <... ioctl resumed>) = 0 [pid 5100] close(6 [pid 5099] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] <... openat resumed>) = 6 [pid 5100] <... close resumed>) = 0 [pid 5099] ioctl(6, LOOP_CLR_FD [pid 5098] ioctl(6, LOOP_SET_FD, 5 [pid 5099] <... ioctl resumed>) = 0 [pid 5100] close(5 [pid 5098] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] ioctl(6, LOOP_CLR_FD) = 0 [pid 5101] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5101] close(6) = 0 [pid 5099] ioctl(6, LOOP_SET_FD, 5 [pid 5101] close(5 [pid 5099] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] close(6 [pid 5098] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5099] <... close resumed>) = 0 [pid 5098] close(6 [pid 5099] close(5 [pid 5098] <... close resumed>) = 0 [pid 5098] close(5) = 0 [pid 5098] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5097] <... close resumed>) = 0 [pid 5098] <... open resumed>) = 5 [pid 5097] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5101] <... close resumed>) = 0 [pid 5100] <... close resumed>) = 0 [pid 5098] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5097] <... open resumed>) = 5 [pid 5099] <... close resumed>) = 0 [pid 5101] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5100] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5099] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5101] <... open resumed>) = 5 [pid 5100] <... open resumed>) = 5 [pid 5099] <... open resumed>) = 5 [pid 5097] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5101] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5099] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5100] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5098] <... write resumed>) = 20 [pid 5099] <... write resumed>) = 20 [pid 5101] <... write resumed>) = 20 [pid 5100] <... write resumed>) = 20 [pid 5099] exit_group(0 [pid 5098] exit_group(0 [pid 5097] <... write resumed>) = 20 [pid 5101] exit_group(0 [pid 5098] <... exit_group resumed>) = ? [pid 5097] exit_group(0 [pid 5101] <... exit_group resumed>) = ? [pid 5100] exit_group(0 [pid 5099] <... exit_group resumed>) = ? [pid 5098] +++ exited with 0 +++ [pid 5097] <... exit_group resumed>) = ? [pid 5099] +++ exited with 0 +++ [pid 5097] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5101] +++ exited with 0 +++ [pid 5100] <... exit_group resumed>) = ? [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5100] +++ exited with 0 +++ [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] <... restart_syscall resumed>) = 0 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5063] <... ioctl resumed>) = 0 [pid 5062] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5063] close(3 [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] <... openat resumed>) = 3 [pid 5061] <... openat resumed>) = 3 [pid 5063] <... close resumed>) = 0 [pid 5062] <... ioctl resumed>) = 0 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] close(3 [pid 5061] <... ioctl resumed>) = 0 [pid 5062] <... close resumed>) = 0 [pid 5061] close(3) = 0 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5103 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5103 attached [pid 5103] set_robust_list(0x555556679660, 24) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setpgid(0, 0) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5104 ./strace-static-x86_64: Process 5105 attached [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5105 [pid 5105] set_robust_list(0x555556679660, 24./strace-static-x86_64: Process 5104 attached ) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5104] set_robust_list(0x555556679660, 24 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] <... set_robust_list resumed>) = 0 [pid 5103] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5105] <... prctl resumed>) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] close(3 [pid 5105] setpgid(0, 0) = 0 [pid 5067] <... close resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] <... openat resumed>) = 3 [pid 5104] <... prctl resumed>) = 0 [pid 5103] write(3, "1000", 4 [pid 5105] write(3, "1000", 4) = 4 [pid 5105] close(3./strace-static-x86_64: Process 5106 attached ) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5106] set_robust_list(0x555556679660, 24 [pid 5068] <... ioctl resumed>) = 0 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5068] close(3 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] setpgid(0, 0 [pid 5068] <... close resumed>) = 0 [pid 5106] <... prctl resumed>) = 0 [pid 5104] <... setpgid resumed>) = 0 [pid 5103] <... write resumed>) = 4 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5106] setpgid(0, 0 [pid 5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] close(3 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5106 [pid 5106] <... setpgid resumed>) = 0 [pid 5105] <... openat resumed>) = 3 [pid 5104] <... openat resumed>) = 3 [pid 5103] <... close resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] write(3, "1000", 4 [pid 5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5106] <... openat resumed>) = 3 [pid 5105] <... openat resumed>) = 4 [pid 5104] <... write resumed>) = 4 [pid 5106] write(3, "1000", 4 [pid 5105] sendfile(4, 3, [122] [pid 5104] close(3 [pid 5103] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5107 attached [pid 5106] <... write resumed>) = 4 [pid 5104] <... close resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5107 [pid 5106] close(3 [pid 5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5107] set_robust_list(0x555556679660, 24 [pid 5106] <... close resumed>) = 0 [pid 5104] <... openat resumed>) = 3 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] <... openat resumed>) = 3 [pid 5104] <... openat resumed>) = 4 [pid 5103] <... openat resumed>) = 4 [ 83.360056][ T5102] syz-executor261 (5102): drop_caches: 3 [pid 5107] <... prctl resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] sendfile(4, 3, [122] [pid 5103] sendfile(4, 3, [122] [pid 5107] setpgid(0, 0 [pid 5106] <... openat resumed>) = 4 [pid 5106] sendfile(4, 3, [122] [pid 5107] <... setpgid resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] write(3, "1000", 4) = 4 [pid 5107] close(3) = 0 [pid 5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5107] sendfile(4, 3, [122] [pid 5102] <... sendfile resumed> => [693], 571) = 571 [pid 5102] memfd_create("syzkaller", 0) = 5 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 83.700456][ T5106] syz-executor261 (5106): drop_caches: 3 [ 83.700943][ T5102] syz-executor261 (5102): drop_caches: 3 [ 83.722085][ T5104] syz-executor261 (5104): drop_caches: 3 [ 83.729977][ T5105] syz-executor261 (5105): drop_caches: 3 [ 83.731441][ T5103] syz-executor261 (5103): drop_caches: 3 [ 83.808248][ T5107] syz-executor261 (5107): drop_caches: 3 [pid 5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5102] munmap(0x7fcad0467000, 138412032) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5102] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5102] ioctl(6, LOOP_CLR_FD) = 0 [pid 5102] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5102] close(6) = 0 [pid 5102] close(5) = 0 [pid 5102] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5102] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5102] exit_group(0) = ? [pid 5102] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5108 ./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x555556679660, 24) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5104] <... sendfile resumed> => [693], 571) = 571 [pid 5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] memfd_create("syzkaller", 0 [pid 5108] <... openat resumed>) = 4 [pid 5106] <... sendfile resumed> => [693], 571) = 571 [pid 5104] <... memfd_create resumed>) = 5 [pid 5108] sendfile(4, 3, [122] [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 84.098716][ T5104] syz-executor261 (5104): drop_caches: 3 [ 84.129869][ T5105] syz-executor261 (5105): drop_caches: 3 [ 84.131049][ T5106] syz-executor261 (5106): drop_caches: 3 [pid 5106] memfd_create("syzkaller", 0) = 5 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5105] <... sendfile resumed> => [693], 571) = 571 [pid 5105] memfd_create("syzkaller", 0) = 5 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5107] <... sendfile resumed> => [693], 571) = 571 [pid 5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5104] <... write resumed>) = 2097152 [pid 5107] memfd_create("syzkaller", 0 [pid 5103] <... sendfile resumed> => [693], 571) = 571 [pid 5107] <... memfd_create resumed>) = 5 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5104] munmap(0x7fcad0467000, 138412032 [pid 5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5104] <... munmap resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5104] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5104] ioctl(6, LOOP_CLR_FD [pid 5103] memfd_create("syzkaller", 0 [pid 5104] <... ioctl resumed>) = 0 [ 84.245750][ T5107] syz-executor261 (5107): drop_caches: 3 [ 84.277947][ T5103] syz-executor261 (5103): drop_caches: 3 [pid 5107] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5103] <... memfd_create resumed>) = 5 [pid 5104] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] close(6) = 0 [pid 5104] close(5 [pid 5103] <... mmap resumed>) = 0x7fcad0467000 [pid 5106] <... write resumed>) = 2097152 [pid 5106] munmap(0x7fcad0467000, 138412032 [pid 5105] <... write resumed>) = 2097152 [pid 5105] munmap(0x7fcad0467000, 138412032 [pid 5106] <... munmap resumed>) = 0 [pid 5104] <... close resumed>) = 0 [pid 5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5106] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5106] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5106] ioctl(6, LOOP_CLR_FD) = 0 [pid 5105] <... munmap resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5104] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5106] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5106] close(6 [pid 5105] <... openat resumed>) = 6 [pid 5106] <... close resumed>) = 0 [pid 5106] close(5 [pid 5104] <... open resumed>) = 5 [pid 5104] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5105] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5105] ioctl(6, LOOP_CLR_FD) = 0 [pid 5104] <... write resumed>) = 20 [pid 5104] exit_group(0) = ? [pid 5105] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5104] +++ exited with 0 +++ [pid 5105] close(6 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5107] <... write resumed>) = 2097152 [pid 5106] <... close resumed>) = 0 [pid 5105] <... close resumed>) = 0 [pid 5103] <... write resumed>) = 2097152 [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5105] close(5 [pid 5062] <... restart_syscall resumed>) = 0 [pid 5106] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5106] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5106] <... write resumed>) = 20 [pid 5106] exit_group(0) = ? [pid 5062] <... openat resumed>) = 3 [pid 5107] munmap(0x7fcad0467000, 138412032 [pid 5103] munmap(0x7fcad0467000, 138412032 [pid 5107] <... munmap resumed>) = 0 [pid 5106] +++ exited with 0 +++ [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5062] <... ioctl resumed>) = 0 [pid 5062] close(3 [pid 5067] <... ioctl resumed>) = 0 [pid 5062] <... close resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached [pid 5067] close(3 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5109 [pid 5067] <... close resumed>) = 0 [pid 5109] set_robust_list(0x555556679660, 24 [pid 5107] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5105] <... close resumed>) = 0 [pid 5103] <... munmap resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] <... set_robust_list resumed>) = 0 [pid 5107] <... openat resumed>) = 6 [pid 5105] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5103] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5107] ioctl(6, LOOP_SET_FD, 5 [pid 5105] <... open resumed>) = 5 [pid 5103] <... openat resumed>) = 6 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5110 [pid 5107] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] ioctl(6, LOOP_CLR_FD) = 0 [pid 5103] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5103] ioctl(6, LOOP_CLR_FD [pid 5105] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5103] <... ioctl resumed>) = 0 [pid 5107] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5107] close(6) = 0 [pid 5107] close(5./strace-static-x86_64: Process 5110 attached [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] set_robust_list(0x555556679660, 24) = 0 [pid 5109] setpgid(0, 0 [pid 5105] <... write resumed>) = 20 [pid 5105] exit_group(0 [pid 5103] ioctl(6, LOOP_SET_FD, 5 [pid 5105] <... exit_group resumed>) = ? [pid 5103] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] +++ exited with 0 +++ [pid 5103] close(6 [pid 5109] <... setpgid resumed>) = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] <... close resumed>) = 0 [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5110] <... prctl resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] close(5 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5110] setpgid(0, 0 [pid 5109] <... openat resumed>) = 3 [pid 5107] <... close resumed>) = 0 [pid 5061] <... openat resumed>) = 3 [pid 5110] <... setpgid resumed>) = 0 [pid 5109] write(3, "1000", 4 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5109] <... write resumed>) = 4 [pid 5061] <... ioctl resumed>) = 0 [pid 5061] close(3 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] close(3 [pid 5061] <... close resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5110] <... openat resumed>) = 3 [pid 5109] <... openat resumed>) = 3 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5111 [pid 5110] write(3, "1000", 4./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x555556679660, 24) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5111] setpgid(0, 0 [pid 5110] <... write resumed>) = 4 [pid 5111] <... setpgid resumed>) = 0 [pid 5110] close(3 [pid 5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5110] <... close resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5109] <... openat resumed>) = 4 [pid 5111] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 3 [pid 5109] sendfile(4, 3, [122] [pid 5111] write(3, "1000", 4) = 4 [pid 5111] close(3) = 0 [pid 5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5111] sendfile(4, 3, [122] [pid 5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5110] sendfile(4, 3, [122] [pid 5103] <... close resumed>) = 0 [ 84.490295][ T5108] syz-executor261 (5108): drop_caches: 3 [pid 5103] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5107] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5103] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5107] <... open resumed>) = 5 [pid 5107] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5103] <... write resumed>) = 20 [pid 5107] <... write resumed>) = 20 [pid 5103] exit_group(0 [pid 5107] exit_group(0) = ? [pid 5107] +++ exited with 0 +++ [pid 5103] <... exit_group resumed>) = ? [pid 5103] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... openat resumed>) = 3 [pid 5063] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5068] <... ioctl resumed>) = 0 [pid 5063] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 5063] close(3 [pid 5068] <... close resumed>) = 0 [pid 5063] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5112 attached ./strace-static-x86_64: Process 5113 attached [pid 5112] set_robust_list(0x555556679660, 24 [pid 5113] set_robust_list(0x555556679660, 24 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... prctl resumed>) = 0 [pid 5113] <... prctl resumed>) = 0 [pid 5112] setpgid(0, 0 [pid 5113] setpgid(0, 0 [pid 5112] <... setpgid resumed>) = 0 [pid 5113] <... setpgid resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5112] <... openat resumed>) = 3 [pid 5113] <... openat resumed>) = 3 [pid 5112] write(3, "1000", 4 [pid 5113] write(3, "1000", 4 [pid 5112] <... write resumed>) = 4 [pid 5113] <... write resumed>) = 4 [pid 5112] close(3 [pid 5113] close(3 [pid 5112] <... close resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5112 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5113 [pid 5113] <... close resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5112] <... openat resumed>) = 3 [pid 5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5112] sendfile(4, 3, [122] [pid 5113] <... openat resumed>) = 3 [pid 5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5113] sendfile(4, 3, [122] [pid 5108] <... sendfile resumed> => [693], 571) = 571 [pid 5108] memfd_create("syzkaller", 0) = 5 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 84.852023][ T5108] syz-executor261 (5108): drop_caches: 3 [ 84.889962][ T5111] syz-executor261 (5111): drop_caches: 3 [ 84.894475][ T5110] syz-executor261 (5110): drop_caches: 3 [ 84.918626][ T5109] syz-executor261 (5109): drop_caches: 3 [ 84.939009][ T5113] syz-executor261 (5113): drop_caches: 3 [ 84.944769][ T5112] syz-executor261 (5112): drop_caches: 3 [pid 5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5108] munmap(0x7fcad0467000, 138412032) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] ioctl(6, LOOP_CLR_FD) = 0 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] close(6) = 0 [pid 5108] close(5) = 0 [pid 5108] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5110] <... sendfile resumed> => [693], 571) = 571 [pid 5110] memfd_create("syzkaller", 0 [pid 5108] <... open resumed>) = 5 [pid 5110] <... memfd_create resumed>) = 5 [ 85.231558][ T5110] syz-executor261 (5110): drop_caches: 3 [ 85.260725][ T5111] syz-executor261 (5111): drop_caches: 3 [ 85.262808][ T5113] syz-executor261 (5113): drop_caches: 3 [ 85.267825][ T5109] syz-executor261 (5109): drop_caches: 3 [pid 5108] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5113] <... sendfile resumed> => [693], 571) = 571 [pid 5112] <... sendfile resumed> => [693], 571) = 571 [pid 5111] <... sendfile resumed> => [693], 571) = 571 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5109] <... sendfile resumed> => [693], 571) = 571 [pid 5110] <... mmap resumed>) = 0x7fcad0467000 [pid 5113] memfd_create("syzkaller", 0 [pid 5112] memfd_create("syzkaller", 0 [pid 5111] memfd_create("syzkaller", 0 [pid 5108] <... write resumed>) = 20 [pid 5108] exit_group(0) = ? [pid 5113] <... memfd_create resumed>) = 5 [pid 5112] <... memfd_create resumed>) = 5 [pid 5111] <... memfd_create resumed>) = 5 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5108] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 85.274108][ T5112] syz-executor261 (5112): drop_caches: 3 [pid 5109] memfd_create("syzkaller", 0 [pid 5113] <... mmap resumed>) = 0x7fcad0467000 [pid 5112] <... mmap resumed>) = 0x7fcad0467000 [pid 5109] <... memfd_create resumed>) = 5 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5109] <... mmap resumed>) = 0x7fcad0467000 [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5112] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152./strace-static-x86_64: Process 5114 attached [pid 5114] set_robust_list(0x555556679660, 24) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5114 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5110] <... write resumed>) = 2097152 [pid 5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5110] munmap(0x7fcad0467000, 138412032) = 0 [pid 5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] sendfile(4, 3, [122] [pid 5110] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5110] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5113] <... write resumed>) = 2097152 [pid 5110] ioctl(6, LOOP_CLR_FD) = 0 [pid 5110] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5110] close(6) = 0 [pid 5110] close(5) = 0 [pid 5110] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5110] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5113] munmap(0x7fcad0467000, 138412032 [pid 5112] <... write resumed>) = 2097152 [pid 5111] <... write resumed>) = 2097152 [pid 5109] <... write resumed>) = 2097152 [pid 5111] munmap(0x7fcad0467000, 138412032 [pid 5110] <... write resumed>) = 20 [pid 5109] munmap(0x7fcad0467000, 138412032 [pid 5110] exit_group(0 [pid 5113] <... munmap resumed>) = 0 [pid 5110] <... exit_group resumed>) = ? [pid 5110] +++ exited with 0 +++ [pid 5109] <... munmap resumed>) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5113] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5111] <... munmap resumed>) = 0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5112] munmap(0x7fcad0467000, 138412032 [pid 5109] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5113] <... openat resumed>) = 6 [pid 5112] <... munmap resumed>) = 0 [pid 5109] ioctl(6, LOOP_SET_FD, 5 [pid 5067] <... openat resumed>) = 3 [pid 5113] ioctl(6, LOOP_SET_FD, 5 [pid 5112] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5109] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5109] ioctl(6, LOOP_CLR_FD [pid 5113] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] ioctl(6, LOOP_CLR_FD [pid 5112] <... openat resumed>) = 6 [pid 5113] <... ioctl resumed>) = 0 [pid 5112] ioctl(6, LOOP_SET_FD, 5 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5115 [pid 5112] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] <... openat resumed>) = 6 [pid 5109] <... ioctl resumed>) = 0 [pid 5112] ioctl(6, LOOP_CLR_FD) = 0 [pid 5113] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5111] ioctl(6, LOOP_SET_FD, 5./strace-static-x86_64: Process 5115 attached [pid 5113] close(6 [pid 5111] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] ioctl(6, LOOP_SET_FD, 5 [pid 5115] set_robust_list(0x555556679660, 24 [pid 5113] <... close resumed>) = 0 [pid 5111] ioctl(6, LOOP_CLR_FD [pid 5109] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5115] <... set_robust_list resumed>) = 0 [pid 5113] close(5 [pid 5112] ioctl(6, LOOP_SET_FD, 5 [pid 5111] <... ioctl resumed>) = 0 [pid 5109] close(6 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] <... close resumed>) = 0 [pid 5109] close(5 [pid 5111] ioctl(6, LOOP_SET_FD, 5 [pid 5115] <... prctl resumed>) = 0 [pid 5112] close(6 [pid 5115] setpgid(0, 0 [pid 5112] <... close resumed>) = 0 [pid 5111] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5115] <... setpgid resumed>) = 0 [pid 5112] close(5 [pid 5111] close(6 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... close resumed>) = 0 [pid 5111] <... close resumed>) = 0 [pid 5115] <... openat resumed>) = 3 [pid 5111] close(5 [pid 5115] write(3, "1000", 4) = 4 [pid 5115] close(3) = 0 [pid 5115] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5115] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5115] sendfile(4, 3, [122] [pid 5113] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5109] <... close resumed>) = 0 [pid 5113] <... open resumed>) = 5 [pid 5111] <... close resumed>) = 0 [pid 5109] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5109] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5113] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20) = 20 [pid 5112] <... close resumed>) = 0 [pid 5109] <... write resumed>) = 20 [pid 5109] exit_group(0 [pid 5113] exit_group(0 [pid 5112] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5111] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5109] <... exit_group resumed>) = ? [pid 5112] <... open resumed>) = 5 [pid 5111] <... open resumed>) = 5 [pid 5112] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5111] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5113] <... exit_group resumed>) = ? [pid 5112] <... write resumed>) = 20 [pid 5111] <... write resumed>) = 20 [pid 5109] +++ exited with 0 +++ [pid 5112] exit_group(0 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5111] exit_group(0 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5113] +++ exited with 0 +++ [pid 5112] <... exit_group resumed>) = ? [pid 5111] <... exit_group resumed>) = ? [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5062] <... ioctl resumed>) = 0 [pid 5062] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5111] +++ exited with 0 +++ [pid 5063] <... openat resumed>) = 3 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5116 [pid 5063] <... ioctl resumed>) = 0 [pid 5063] close(3) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached [pid 5112] +++ exited with 0 +++ [pid 5117] set_robust_list(0x555556679660, 24 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5117 [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5117] <... set_robust_list resumed>) = 0 [pid 5061] restart_syscall(<... resuming interrupted clone ...> [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5061] <... restart_syscall resumed>) = 0 [pid 5117] setpgid(0, 0 [pid 5068] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5116 attached [pid 5117] <... setpgid resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5116] set_robust_list(0x555556679660, 24 [pid 5068] <... ioctl resumed>) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5116] <... set_robust_list resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] close(3 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5061] <... openat resumed>) = 3 [pid 5117] <... openat resumed>) = 3 [pid 5116] <... prctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5117] write(3, "1000", 4 [pid 5116] setpgid(0, 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] <... write resumed>) = 4 [pid 5116] <... setpgid resumed>) = 0 [pid 5061] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5118 attached [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5061] close(3 [pid 5118] set_robust_list(0x555556679660, 24 [pid 5061] <... close resumed>) = 0 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5119 attached [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] close(3 [pid 5116] <... openat resumed>) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5118 [pid 5117] <... close resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5119] set_robust_list(0x555556679660, 24 [pid 5118] <... prctl resumed>) = 0 [pid 5117] <... openat resumed>) = 3 [pid 5116] write(3, "1000", 4 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5119 [pid 5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5116] <... write resumed>) = 4 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] setpgid(0, 0 [pid 5117] <... openat resumed>) = 4 [pid 5117] sendfile(4, 3, [122] [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] <... setpgid resumed>) = 0 [pid 5116] close(3 [pid 5119] <... prctl resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5119] setpgid(0, 0 [pid 5118] <... openat resumed>) = 3 [pid 5116] <... close resumed>) = 0 [pid 5119] <... setpgid resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5119] <... openat resumed>) = 3 [pid 5118] write(3, "1000", 4 [pid 5116] <... openat resumed>) = 3 [pid 5119] write(3, "1000", 4 [pid 5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5119] <... write resumed>) = 4 [pid 5118] <... write resumed>) = 4 [pid 5119] close(3 [pid 5118] close(3 [pid 5116] <... openat resumed>) = 4 [pid 5119] <... close resumed>) = 0 [pid 5118] <... close resumed>) = 0 [pid 5116] sendfile(4, 3, [122] [pid 5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5119] <... openat resumed>) = 3 [pid 5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5119] sendfile(4, 3, [122] [pid 5118] <... openat resumed>) = 4 [ 85.850852][ T5114] syz-executor261 (5114): drop_caches: 3 [ 85.926657][ T5115] syz-executor261 (5115): drop_caches: 3 [ 85.967113][ T5116] syz-executor261 (5116): drop_caches: 3 [ 85.993610][ T5117] syz-executor261 (5117): drop_caches: 3 [ 86.011206][ T5118] syz-executor261 (5118): drop_caches: 3 [ 86.037794][ T5119] syz-executor261 (5119): drop_caches: 3 [pid 5118] sendfile(4, 3, [122] [pid 5114] <... sendfile resumed> => [693], 571) = 571 [pid 5114] memfd_create("syzkaller", 0) = 5 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 86.180048][ T5114] syz-executor261 (5114): drop_caches: 3 [ 86.217798][ T5116] syz-executor261 (5116): drop_caches: 3 [pid 5116] <... sendfile resumed> => [693], 571) = 571 [pid 5116] memfd_create("syzkaller", 0) = 5 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5115] <... sendfile resumed> => [693], 571) = 571 [pid 5115] memfd_create("syzkaller", 0) = 5 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 86.225724][ T5115] syz-executor261 (5115): drop_caches: 3 [pid 5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5119] <... sendfile resumed> => [693], 571) = 571 [pid 5115] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5117] <... sendfile resumed> => [693], 571) = 571 [pid 5117] memfd_create("syzkaller", 0 [pid 5114] <... write resumed>) = 2097152 [pid 5119] memfd_create("syzkaller", 0 [pid 5117] <... memfd_create resumed>) = 5 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5119] <... memfd_create resumed>) = 5 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] <... sendfile resumed> => [693], 571) = 571 [pid 5119] <... mmap resumed>) = 0x7fcad0467000 [pid 5118] memfd_create("syzkaller", 0 [pid 5114] munmap(0x7fcad0467000, 138412032 [pid 5118] <... memfd_create resumed>) = 5 [pid 5114] <... munmap resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5114] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5114] ioctl(6, LOOP_CLR_FD) = 0 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5116] <... write resumed>) = 2097152 [pid 5114] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5114] close(6) = 0 [ 86.290158][ T5117] syz-executor261 (5117): drop_caches: 3 [ 86.290158][ T5119] syz-executor261 (5119): drop_caches: 3 [ 86.290290][ T5118] syz-executor261 (5118): drop_caches: 3 [pid 5114] close(5 [pid 5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5118] <... mmap resumed>) = 0x7fcad0467000 [pid 5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] munmap(0x7fcad0467000, 138412032 [pid 5115] <... write resumed>) = 2097152 [pid 5115] munmap(0x7fcad0467000, 138412032 [pid 5116] <... munmap resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5116] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5116] ioctl(6, LOOP_CLR_FD) = 0 [pid 5115] <... munmap resumed>) = 0 [pid 5115] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5115] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5115] ioctl(6, LOOP_CLR_FD) = 0 [pid 5114] <... close resumed>) = 0 [pid 5114] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5115] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5115] close(6) = 0 [pid 5114] <... open resumed>) = 5 [pid 5115] close(5 [pid 5116] ioctl(6, LOOP_SET_FD, 5 [pid 5114] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5116] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5116] close(6) = 0 [pid 5116] close(5 [pid 5114] <... write resumed>) = 20 [pid 5114] exit_group(0) = ? [pid 5114] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=29 /* 0.29 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5115] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5116] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5120 [pid 5115] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 ./strace-static-x86_64: Process 5120 attached [pid 5120] set_robust_list(0x555556679660, 24 [pid 5115] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5117] <... write resumed>) = 2097152 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] munmap(0x7fcad0467000, 138412032 [pid 5120] <... openat resumed>) = 3 [pid 5117] <... munmap resumed>) = 0 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5116] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5120] sendfile(4, 3, [122] [pid 5116] <... open resumed>) = 5 [pid 5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5117] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5117] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5117] ioctl(6, LOOP_CLR_FD) = 0 [pid 5117] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5117] close(6) = 0 [pid 5115] <... write resumed>) = 20 [pid 5115] exit_group(0) = ? [pid 5116] <... write resumed>) = 20 [pid 5116] exit_group(0 [pid 5117] close(5 [pid 5116] <... exit_group resumed>) = ? [pid 5119] <... write resumed>) = 2097152 [pid 5116] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5118] <... write resumed>) = 2097152 [pid 5067] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] munmap(0x7fcad0467000, 138412032 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5121 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5122] set_robust_list(0x555556679660, 24) = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5121 attached [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] set_robust_list(0x555556679660, 24) = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] <... openat resumed>) = 3 [pid 5121] <... prctl resumed>) = 0 [pid 5119] <... munmap resumed>) = 0 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3 [pid 5121] setpgid(0, 0 [pid 5118] munmap(0x7fcad0467000, 138412032 [pid 5117] <... close resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5121] <... setpgid resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] <... close resumed>) = 0 [pid 5121] write(3, "1000", 4 [pid 5117] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5121] <... write resumed>) = 4 [pid 5117] <... open resumed>) = 5 [pid 5122] <... openat resumed>) = 3 [pid 5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5121] close(3 [pid 5117] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5122] <... openat resumed>) = 4 [pid 5121] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = 6 [pid 5118] <... munmap resumed>) = 0 [pid 5122] sendfile(4, 3, [122] [pid 5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5119] ioctl(6, LOOP_SET_FD, 5 [pid 5121] <... openat resumed>) = 3 [pid 5119] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5119] ioctl(6, LOOP_CLR_FD [pid 5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5118] <... openat resumed>) = 6 [pid 5121] <... openat resumed>) = 4 [pid 5119] <... ioctl resumed>) = 0 [pid 5117] <... write resumed>) = 20 [pid 5121] sendfile(4, 3, [122] [pid 5117] exit_group(0 [pid 5118] ioctl(6, LOOP_SET_FD, 5 [pid 5117] <... exit_group resumed>) = ? [pid 5118] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] +++ exited with 0 +++ [pid 5119] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5118] ioctl(6, LOOP_CLR_FD [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5119] close(6 [pid 5118] <... ioctl resumed>) = 0 [pid 5063] restart_syscall(<... resuming interrupted clone ...> [pid 5119] <... close resumed>) = 0 [pid 5063] <... restart_syscall resumed>) = 0 [pid 5119] close(5 [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5118] ioctl(6, LOOP_SET_FD, 5 [pid 5063] <... openat resumed>) = 3 [pid 5118] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5063] ioctl(3, LOOP_CLR_FD) = 0 [pid 5118] close(6 [pid 5063] close(3) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] <... close resumed>) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5123] set_robust_list(0x555556679660, 24 [pid 5118] close(5 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5123 [pid 5123] <... set_robust_list resumed>) = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] <... close resumed>) = 0 [pid 5123] <... prctl resumed>) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] <... close resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5123] write(3, "1000", 4 [pid 5119] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5118] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5123] <... write resumed>) = 4 [pid 5123] close(3) = 0 [pid 5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5118] <... open resumed>) = 5 [pid 5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5123] sendfile(4, 3, [122] [pid 5119] <... open resumed>) = 5 [pid 5118] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5119] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5118] <... write resumed>) = 20 [pid 5119] <... write resumed>) = 20 [pid 5118] exit_group(0 [pid 5119] exit_group(0 [pid 5118] <... exit_group resumed>) = ? [pid 5119] <... exit_group resumed>) = ? [pid 5118] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached [pid 5119] +++ exited with 0 +++ [pid 5124] set_robust_list(0x555556679660, 24) = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5124] setpgid(0, 0) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5124 [pid 5061] <... openat resumed>) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5124] write(3, "1000", 4 [pid 5061] close(3 [pid 5124] <... write resumed>) = 4 [pid 5124] close(3) = 0 [pid 5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] <... close resumed>) = 0 [pid 5124] <... openat resumed>) = 3 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5124] sendfile(4, 3, [122]./strace-static-x86_64: Process 5125 attached [pid 5125] set_robust_list(0x555556679660, 24 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5125 [pid 5125] <... set_robust_list resumed>) = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] setpgid(0, 0) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] write(3, "1000", 4) = 4 [pid 5125] close(3) = 0 [pid 5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 86.905185][ T5120] syz-executor261 (5120): drop_caches: 3 [ 86.929011][ T5121] syz-executor261 (5121): drop_caches: 3 [ 86.936656][ T5122] syz-executor261 (5122): drop_caches: 3 [ 87.012521][ T5123] syz-executor261 (5123): drop_caches: 3 [ 87.072671][ T5124] syz-executor261 (5124): drop_caches: 3 [ 87.184518][ T5125] syz-executor261 (5125): drop_caches: 3 [ 87.226275][ T921] cfg80211: failed to load regulatory.db [pid 5125] sendfile(4, 3, [122] [pid 5122] <... sendfile resumed> => [693], 571) = 571 [pid 5122] memfd_create("syzkaller", 0) = 5 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] <... sendfile resumed> => [693], 571) = 571 [pid 5120] <... sendfile resumed> => [693], 571) = 571 [pid 5122] <... mmap resumed>) = 0x7fcad0467000 [pid 5121] memfd_create("syzkaller", 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5121] <... memfd_create resumed>) = 5 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5120] <... memfd_create resumed>) = 5 [ 87.307282][ T5122] syz-executor261 (5122): drop_caches: 3 [ 87.327167][ T5120] syz-executor261 (5120): drop_caches: 3 [ 87.332659][ T5123] syz-executor261 (5123): drop_caches: 3 [ 87.335890][ T5121] syz-executor261 (5121): drop_caches: 3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5123] <... sendfile resumed> => [693], 571) = 571 [pid 5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5120] <... mmap resumed>) = 0x7fcad0467000 [pid 5123] memfd_create("syzkaller", 0 [pid 5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5124] <... sendfile resumed> => [693], 571) = 571 [pid 5124] memfd_create("syzkaller", 0) = 5 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5123] <... memfd_create resumed>) = 5 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 87.382493][ T5124] syz-executor261 (5124): drop_caches: 3 [pid 5122] <... write resumed>) = 2097152 [pid 5122] munmap(0x7fcad0467000, 138412032 [pid 5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5122] <... munmap resumed>) = 0 [pid 5121] <... write resumed>) = 2097152 [pid 5120] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5121] munmap(0x7fcad0467000, 138412032 [pid 5122] <... openat resumed>) = 6 [pid 5121] <... munmap resumed>) = 0 [pid 5122] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5122] ioctl(6, LOOP_CLR_FD) = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5125] <... sendfile resumed> => [693], 571) = 571 [pid 5121] <... openat resumed>) = 6 [pid 5121] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5121] ioctl(6, LOOP_CLR_FD [pid 5122] ioctl(6, LOOP_SET_FD, 5 [pid 5121] <... ioctl resumed>) = 0 [pid 5122] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] memfd_create("syzkaller", 0) = 5 [pid 5122] close(6 [pid 5121] ioctl(6, LOOP_SET_FD, 5 [pid 5122] <... close resumed>) = 0 [pid 5121] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] close(5 [pid 5121] close(6) = 0 [pid 5121] close(5 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] <... write resumed>) = 2097152 [pid 5125] <... mmap resumed>) = 0x7fcad0467000 [pid 5120] munmap(0x7fcad0467000, 138412032 [pid 5123] <... write resumed>) = 2097152 [pid 5120] <... munmap resumed>) = 0 [ 87.471981][ T5125] syz-executor261 (5125): drop_caches: 3 [pid 5123] munmap(0x7fcad0467000, 138412032 [pid 5120] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5124] <... write resumed>) = 2097152 [pid 5121] <... close resumed>) = 0 [pid 5120] <... openat resumed>) = 6 [pid 5120] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5120] ioctl(6, LOOP_CLR_FD [pid 5124] munmap(0x7fcad0467000, 138412032 [pid 5120] <... ioctl resumed>) = 0 [pid 5124] <... munmap resumed>) = 0 [pid 5121] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5120] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5120] close(6 [pid 5122] <... close resumed>) = 0 [pid 5120] <... close resumed>) = 0 [pid 5122] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5120] close(5 [pid 5122] <... open resumed>) = 5 [pid 5121] <... open resumed>) = 5 [pid 5121] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5122] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5124] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5123] <... munmap resumed>) = 0 [pid 5124] <... openat resumed>) = 6 [pid 5123] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5124] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] ioctl(6, LOOP_CLR_FD) = 0 [pid 5123] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5123] ioctl(6, LOOP_CLR_FD) = 0 [pid 5124] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] close(6 [pid 5123] ioctl(6, LOOP_SET_FD, 5 [pid 5124] <... close resumed>) = 0 [pid 5123] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] close(5 [pid 5123] close(6) = 0 [pid 5123] close(5 [pid 5121] <... write resumed>) = 20 [pid 5121] exit_group(0) = ? [pid 5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5122] <... write resumed>) = 20 [pid 5122] exit_group(0) = ? [pid 5122] +++ exited with 0 +++ [pid 5120] <... close resumed>) = 0 [pid 5124] <... close resumed>) = 0 [pid 5123] <... close resumed>) = 0 [pid 5121] +++ exited with 0 +++ [pid 5120] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5067] <... restart_syscall resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5062] <... ioctl resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5062] close(3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5062] <... close resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... ioctl resumed>) = 0 [pid 5120] <... open resumed>) = 5 [pid 5067] close(3 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5126 ./strace-static-x86_64: Process 5126 attached [pid 5120] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5067] <... close resumed>) = 0 [pid 5126] set_robust_list(0x555556679660, 24 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5126] <... set_robust_list resumed>) = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] <... write resumed>) = 2097152 [pid 5124] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5123] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5127 attached [pid 5126] setpgid(0, 0 [pid 5124] <... open resumed>) = 5 [pid 5123] <... open resumed>) = 5 [pid 5120] <... write resumed>) = 20 [pid 5126] <... setpgid resumed>) = 0 [pid 5124] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5123] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5120] exit_group(0 [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5127 [pid 5127] set_robust_list(0x555556679660, 24 [pid 5125] munmap(0x7fcad0467000, 138412032 [pid 5120] <... exit_group resumed>) = ? [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] +++ exited with 0 +++ [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} --- [pid 5127] <... prctl resumed>) = 0 [pid 5126] <... openat resumed>) = 3 [pid 5127] setpgid(0, 0 [pid 5126] write(3, "1000", 4) = 4 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5127] <... setpgid resumed>) = 0 [pid 5126] close(3) = 0 [pid 5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5124] <... write resumed>) = 20 [pid 5123] <... write resumed>) = 20 [pid 5065] <... openat resumed>) = 3 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5124] exit_group(0 [pid 5123] exit_group(0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5124] <... exit_group resumed>) = ? [pid 5123] <... exit_group resumed>) = ? [pid 5127] <... openat resumed>) = 3 [pid 5124] +++ exited with 0 +++ [pid 5123] +++ exited with 0 +++ [pid 5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] <... ioctl resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5126] <... openat resumed>) = 4 [pid 5126] sendfile(4, 3, [122] [pid 5065] close(3 [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5065] <... close resumed>) = 0 [pid 5125] <... munmap resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached ./strace-static-x86_64: Process 5128 attached [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5129] set_robust_list(0x555556679660, 24 [pid 5128] set_robust_list(0x555556679660, 24 [pid 5127] write(3, "1000", 4 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5129 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5128 [pid 5063] <... openat resumed>) = 3 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5128] <... set_robust_list resumed>) = 0 [pid 5127] <... write resumed>) = 4 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] close(3 [pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5063] <... ioctl resumed>) = 0 [pid 5129] <... prctl resumed>) = 0 [pid 5128] <... prctl resumed>) = 0 [pid 5063] close(3 [pid 5129] setpgid(0, 0) = 0 [pid 5128] setpgid(0, 0 [pid 5063] <... close resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] <... setpgid resumed>) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] <... openat resumed>) = 3 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] <... close resumed>) = 0 [pid 5125] <... openat resumed>) = 6 [pid 5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5128] write(3, "1000", 4) = 4 [pid 5128] close(3 [pid 5127] <... openat resumed>) = 3 [pid 5128] <... close resumed>) = 0 [pid 5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5130 attached [pid 5128] <... openat resumed>) = 3 [pid 5127] <... openat resumed>) = 4 [pid 5125] ioctl(6, LOOP_SET_FD, 5 [pid 5130] set_robust_list(0x555556679660, 24 [pid 5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5127] sendfile(4, 3, [122] [pid 5125] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5130] <... set_robust_list resumed>) = 0 [pid 5129] write(3, "1000", 4 [pid 5128] <... openat resumed>) = 4 [pid 5125] ioctl(6, LOOP_CLR_FD [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5129] <... write resumed>) = 4 [pid 5128] sendfile(4, 3, [122] [pid 5125] <... ioctl resumed>) = 0 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5130 [pid 5130] <... prctl resumed>) = 0 [pid 5129] close(3 [pid 5130] setpgid(0, 0 [pid 5129] <... close resumed>) = 0 [pid 5130] <... setpgid resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... openat resumed>) = 3 [pid 5125] ioctl(6, LOOP_SET_FD, 5 [pid 5130] <... openat resumed>) = 3 [pid 5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5125] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] close(6) = 0 [pid 5125] close(5) = 0 [pid 5129] <... openat resumed>) = 4 [pid 5125] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5130] write(3, "1000", 4 [pid 5129] sendfile(4, 3, [122] [pid 5125] <... open resumed>) = 5 [pid 5130] <... write resumed>) = 4 [pid 5125] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5130] sendfile(4, 3, [122] [pid 5125] <... write resumed>) = 20 [pid 5125] exit_group(0) = ? [pid 5125] +++ exited with 0 +++ [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5061] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5061] close(3) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5131 ./strace-static-x86_64: Process 5131 attached [pid 5131] set_robust_list(0x555556679660, 24) = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5131] setpgid(0, 0) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5131] write(3, "1000", 4) = 4 [pid 5131] close(3) = 0 [pid 5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 88.007743][ T5127] syz-executor261 (5127): drop_caches: 3 [ 88.030424][ T5126] syz-executor261 (5126): drop_caches: 3 [ 88.063222][ T5129] syz-executor261 (5129): drop_caches: 3 [ 88.094172][ T5128] syz-executor261 (5128): drop_caches: 3 [ 88.111131][ T5130] syz-executor261 (5130): drop_caches: 3 [ 88.213151][ T5131] syz-executor261 (5131): drop_caches: 3 [pid 5131] sendfile(4, 3, [122] [pid 5127] <... sendfile resumed> => [693], 571) = 571 [pid 5126] <... sendfile resumed> => [693], 571) = 571 [pid 5126] memfd_create("syzkaller", 0 [pid 5127] memfd_create("syzkaller", 0) = 5 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5126] <... memfd_create resumed>) = 5 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] <... mmap resumed>) = 0x7fcad0467000 [pid 5126] <... mmap resumed>) = 0x7fcad0467000 [ 88.429729][ T5126] syz-executor261 (5126): drop_caches: 3 [ 88.438278][ T5127] syz-executor261 (5127): drop_caches: 3 [pid 5126] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5129] <... sendfile resumed> => [693], 571) = 571 [pid 5129] memfd_create("syzkaller", 0) = 5 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5128] <... sendfile resumed> => [693], 571) = 571 [ 88.517781][ T5129] syz-executor261 (5129): drop_caches: 3 [ 88.533249][ T5130] syz-executor261 (5130): drop_caches: 3 [ 88.543800][ T5128] syz-executor261 (5128): drop_caches: 3 [pid 5128] memfd_create("syzkaller", 0) = 5 [pid 5130] <... sendfile resumed> => [693], 571) = 571 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5130] memfd_create("syzkaller", 0) = 5 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5131] <... sendfile resumed> => [693], 571) = 571 [pid 5131] memfd_create("syzkaller", 0) = 5 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 88.563160][ T5131] syz-executor261 (5131): drop_caches: 3 [pid 5129] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5127] <... write resumed>) = 2097152 [pid 5126] <... write resumed>) = 2097152 [pid 5126] munmap(0x7fcad0467000, 138412032) = 0 [pid 5127] munmap(0x7fcad0467000, 138412032) = 0 [pid 5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5127] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5126] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5127] <... openat resumed>) = 6 [pid 5127] ioctl(6, LOOP_SET_FD, 5 [pid 5126] <... openat resumed>) = 6 [pid 5127] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5126] ioctl(6, LOOP_SET_FD, 5 [pid 5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5127] ioctl(6, LOOP_CLR_FD [pid 5126] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5127] <... ioctl resumed>) = 0 [pid 5126] ioctl(6, LOOP_CLR_FD) = 0 [pid 5127] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5127] close(6 [pid 5131] <... write resumed>) = 2097152 [pid 5128] <... write resumed>) = 2097152 [pid 5127] <... close resumed>) = 0 [pid 5126] ioctl(6, LOOP_SET_FD, 5 [pid 5129] <... write resumed>) = 2097152 [pid 5131] munmap(0x7fcad0467000, 138412032 [pid 5129] munmap(0x7fcad0467000, 138412032 [pid 5128] munmap(0x7fcad0467000, 138412032 [pid 5127] close(5 [pid 5126] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... munmap resumed>) = 0 [pid 5126] close(6) = 0 [pid 5126] close(5 [pid 5131] <... munmap resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5128] <... munmap resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5129] <... openat resumed>) = 6 [pid 5129] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5129] ioctl(6, LOOP_CLR_FD) = 0 [pid 5131] <... openat resumed>) = 6 [pid 5131] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5129] ioctl(6, LOOP_SET_FD, 5 [pid 5127] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5131] ioctl(6, LOOP_CLR_FD [pid 5129] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5126] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5131] <... ioctl resumed>) = 0 [pid 5129] close(6) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5130] <... write resumed>) = 2097152 [pid 5129] close(5 [pid 5128] <... openat resumed>) = 6 [pid 5127] <... open resumed>) = 5 [pid 5126] <... open resumed>) = 5 [pid 5126] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5127] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5128] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5131] ioctl(6, LOOP_SET_FD, 5 [pid 5130] munmap(0x7fcad0467000, 138412032 [pid 5128] ioctl(6, LOOP_CLR_FD [pid 5131] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] close(6 [pid 5128] <... ioctl resumed>) = 0 [pid 5131] <... close resumed>) = 0 [pid 5131] close(5 [pid 5128] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5128] close(6 [pid 5130] <... munmap resumed>) = 0 [pid 5129] <... close resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5128] close(5 [pid 5130] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5131] <... close resumed>) = 0 [pid 5130] <... openat resumed>) = 6 [pid 5129] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5127] <... write resumed>) = 20 [pid 5126] <... write resumed>) = 20 [pid 5130] ioctl(6, LOOP_SET_FD, 5 [pid 5127] exit_group(0 [pid 5126] exit_group(0 [pid 5131] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5130] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... open resumed>) = 5 [pid 5127] <... exit_group resumed>) = ? [pid 5126] <... exit_group resumed>) = ? [pid 5127] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5130] ioctl(6, LOOP_CLR_FD [pid 5129] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5067] <... openat resumed>) = 3 [pid 5131] <... open resumed>) = 5 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5131] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5130] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5067] close(3) = 0 [pid 5126] +++ exited with 0 +++ [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5132 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- ./strace-static-x86_64: Process 5132 attached [pid 5128] <... close resumed>) = 0 [pid 5129] <... write resumed>) = 20 [pid 5131] <... write resumed>) = 20 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5132] set_robust_list(0x555556679660, 24 [pid 5131] exit_group(0 [pid 5130] ioctl(6, LOOP_SET_FD, 5 [pid 5129] exit_group(0 [pid 5062] <... openat resumed>) = 3 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5131] <... exit_group resumed>) = ? [pid 5130] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... exit_group resumed>) = ? [pid 5062] ioctl(3, LOOP_CLR_FD) = 0 [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5131] +++ exited with 0 +++ [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5133 ./strace-static-x86_64: Process 5133 attached [pid 5133] set_robust_list(0x555556679660, 24) = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] close(6 [pid 5133] <... openat resumed>) = 3 [pid 5130] <... close resumed>) = 0 [pid 5129] +++ exited with 0 +++ [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5133] write(3, "1000", 4 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] close(5 [pid 5128] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5133] <... write resumed>) = 4 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5061] restart_syscall(<... resuming interrupted clone ...> [pid 5133] close(3 [pid 5128] <... open resumed>) = 5 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5133] <... close resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5068] <... openat resumed>) = 3 [pid 5133] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5128] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5068] <... ioctl resumed>) = 0 [pid 5061] <... restart_syscall resumed>) = 0 [pid 5068] close(3) = 0 [pid 5132] <... prctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] setpgid(0, 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5134 ./strace-static-x86_64: Process 5134 attached [pid 5061] <... openat resumed>) = 3 [pid 5134] set_robust_list(0x555556679660, 24 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5134] <... set_robust_list resumed>) = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... openat resumed>) = 4 [pid 5132] <... setpgid resumed>) = 0 [pid 5061] <... ioctl resumed>) = 0 [pid 5061] close(3 [pid 5134] <... prctl resumed>) = 0 [pid 5133] sendfile(4, 3, [122] [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] setpgid(0, 0 [pid 5061] <... close resumed>) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5134] <... setpgid resumed>) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] <... openat resumed>) = 3 [pid 5132] write(3, "1000", 4 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5135 [pid 5132] <... write resumed>) = 4 [pid 5132] close(3) = 0 [pid 5134] write(3, "1000", 4 [pid 5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5135 attached [pid 5134] <... write resumed>) = 4 [pid 5132] <... openat resumed>) = 3 [pid 5128] <... write resumed>) = 20 [pid 5135] set_robust_list(0x555556679660, 24 [pid 5134] close(3 [pid 5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5128] exit_group(0 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5134] <... close resumed>) = 0 [pid 5128] <... exit_group resumed>) = ? [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5132] <... openat resumed>) = 4 [pid 5130] <... close resumed>) = 0 [pid 5128] +++ exited with 0 +++ [pid 5134] <... openat resumed>) = 3 [pid 5132] sendfile(4, 3, [122] [pid 5130] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} --- [pid 5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5135] <... prctl resumed>) = 0 [pid 5134] <... openat resumed>) = 4 [pid 5130] <... open resumed>) = 5 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5134] sendfile(4, 3, [122] [pid 5130] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached [pid 5130] <... write resumed>) = 20 [pid 5136] set_robust_list(0x555556679660, 24 [pid 5130] exit_group(0 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5130] <... exit_group resumed>) = ? [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] setpgid(0, 0 [pid 5136] <... prctl resumed>) = 0 [pid 5135] <... setpgid resumed>) = 0 [pid 5136] setpgid(0, 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5136] <... setpgid resumed>) = 0 [pid 5135] <... openat resumed>) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5136 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5135] sendfile(4, 3, [122] [pid 5136] <... openat resumed>) = 3 [pid 5136] write(3, "1000", 4) = 4 [pid 5136] close(3) = 0 [pid 5130] +++ exited with 0 +++ [pid 5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5136] sendfile(4, 3, [122] [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5063] ioctl(3, LOOP_CLR_FD) = 0 [pid 5063] close(3) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5137 ./strace-static-x86_64: Process 5137 attached [pid 5137] set_robust_list(0x555556679660, 24) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] write(3, "1000", 4) = 4 [pid 5137] close(3) = 0 [pid 5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 89.131858][ T5132] syz-executor261 (5132): drop_caches: 3 [ 89.142452][ T5133] syz-executor261 (5133): drop_caches: 3 [ 89.149293][ T5135] syz-executor261 (5135): drop_caches: 3 [ 89.181224][ T5136] syz-executor261 (5136): drop_caches: 3 [ 89.210306][ T5134] syz-executor261 (5134): drop_caches: 3 [ 89.222835][ T5137] syz-executor261 (5137): drop_caches: 3 [pid 5137] sendfile(4, 3, [122] [pid 5132] <... sendfile resumed> => [693], 571) = 571 [pid 5133] <... sendfile resumed> => [693], 571) = 571 [pid 5132] memfd_create("syzkaller", 0) = 5 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5134] <... sendfile resumed> => [693], 571) = 571 [pid 5133] memfd_create("syzkaller", 0 [pid 5132] <... mmap resumed>) = 0x7fcad0467000 [pid 5135] <... sendfile resumed> => [693], 571) = 571 [pid 5136] <... sendfile resumed> => [693], 571) = 571 [ 89.588901][ T5132] syz-executor261 (5132): drop_caches: 3 [ 89.600283][ T5135] syz-executor261 (5135): drop_caches: 3 [ 89.607482][ T5133] syz-executor261 (5133): drop_caches: 3 [ 89.612137][ T5136] syz-executor261 (5136): drop_caches: 3 [ 89.628191][ T5134] syz-executor261 (5134): drop_caches: 3 [pid 5136] memfd_create("syzkaller", 0 [pid 5135] memfd_create("syzkaller", 0 [pid 5137] <... sendfile resumed> => [693], 571) = 571 [pid 5136] <... memfd_create resumed>) = 5 [pid 5135] <... memfd_create resumed>) = 5 [pid 5134] memfd_create("syzkaller", 0 [pid 5133] <... memfd_create resumed>) = 5 [pid 5137] memfd_create("syzkaller", 0 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5137] <... memfd_create resumed>) = 5 [pid 5136] <... mmap resumed>) = 0x7fcad0467000 [pid 5135] <... mmap resumed>) = 0x7fcad0467000 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5134] <... memfd_create resumed>) = 5 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 89.636627][ T5137] syz-executor261 (5137): drop_caches: 3 [pid 5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5132] <... write resumed>) = 2097152 [pid 5132] munmap(0x7fcad0467000, 138412032 [pid 5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5132] <... munmap resumed>) = 0 [pid 5137] <... write resumed>) = 2097152 [pid 5135] <... write resumed>) = 2097152 [pid 5132] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5132] ioctl(6, LOOP_SET_FD, 5 [pid 5137] munmap(0x7fcad0467000, 138412032 [pid 5132] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] ioctl(6, LOOP_CLR_FD) = 0 [pid 5135] munmap(0x7fcad0467000, 138412032 [pid 5132] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5132] close(6) = 0 [pid 5132] close(5 [pid 5134] <... write resumed>) = 2097152 [pid 5137] <... munmap resumed>) = 0 [pid 5136] <... write resumed>) = 2097152 [pid 5135] <... munmap resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5136] munmap(0x7fcad0467000, 138412032 [pid 5132] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5137] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5136] <... munmap resumed>) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5132] <... open resumed>) = 5 [pid 5137] <... openat resumed>) = 6 [pid 5132] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5137] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5135] <... openat resumed>) = 6 [pid 5137] ioctl(6, LOOP_CLR_FD [pid 5135] ioctl(6, LOOP_SET_FD, 5 [pid 5134] munmap(0x7fcad0467000, 138412032 [pid 5137] <... ioctl resumed>) = 0 [pid 5135] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5134] <... munmap resumed>) = 0 [pid 5135] ioctl(6, LOOP_CLR_FD) = 0 [pid 5132] <... write resumed>) = 20 [pid 5132] exit_group(0) = ? [pid 5137] ioctl(6, LOOP_SET_FD, 5 [pid 5135] ioctl(6, LOOP_SET_FD, 5 [pid 5137] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5135] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5137] close(6 [pid 5136] <... openat resumed>) = 6 [pid 5135] close(6 [pid 5137] <... close resumed>) = 0 [pid 5136] ioctl(6, LOOP_SET_FD, 5 [pid 5135] <... close resumed>) = 0 [pid 5137] close(5 [pid 5136] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5135] close(5 [pid 5134] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5136] ioctl(6, LOOP_CLR_FD [pid 5134] <... openat resumed>) = 6 [pid 5136] <... ioctl resumed>) = 0 [pid 5134] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5134] ioctl(6, LOOP_CLR_FD [pid 5136] ioctl(6, LOOP_SET_FD, 5 [pid 5134] <... ioctl resumed>) = 0 [pid 5136] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] close(6) = 0 [pid 5136] close(5 [pid 5133] <... write resumed>) = 2097152 [pid 5133] munmap(0x7fcad0467000, 138412032) = 0 [pid 5134] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5132] +++ exited with 0 +++ [pid 5134] close(6) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5134] close(5 [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5138 [pid 5133] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 ./strace-static-x86_64: Process 5138 attached [pid 5135] <... close resumed>) = 0 [pid 5134] <... close resumed>) = 0 [pid 5133] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5133] ioctl(6, LOOP_CLR_FD) = 0 [pid 5138] set_robust_list(0x555556679660, 24 [pid 5133] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5133] close(6) = 0 [pid 5133] close(5 [pid 5138] <... set_robust_list resumed>) = 0 [pid 5137] <... close resumed>) = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5136] <... close resumed>) = 0 [pid 5135] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5138] <... prctl resumed>) = 0 [pid 5138] setpgid(0, 0 [pid 5135] <... open resumed>) = 5 [pid 5138] <... setpgid resumed>) = 0 [pid 5137] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5135] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] <... open resumed>) = 5 [pid 5135] <... write resumed>) = 20 [pid 5134] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5133] <... close resumed>) = 0 [pid 5138] write(3, "1000", 4 [pid 5137] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5135] exit_group(0 [pid 5138] <... write resumed>) = 4 [pid 5134] <... open resumed>) = 5 [pid 5134] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5138] close(3 [pid 5135] <... exit_group resumed>) = ? [pid 5138] <... close resumed>) = 0 [pid 5136] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5136] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5135] +++ exited with 0 +++ [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5137] <... write resumed>) = 20 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5137] exit_group(0 [pid 5134] <... write resumed>) = 20 [pid 5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5137] <... exit_group resumed>) = ? [pid 5134] exit_group(0 [pid 5061] <... openat resumed>) = 3 [pid 5134] <... exit_group resumed>) = ? [pid 5137] +++ exited with 0 +++ [pid 5134] +++ exited with 0 +++ [pid 5138] <... openat resumed>) = 4 [pid 5061] ioctl(3, LOOP_CLR_FD [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5061] <... ioctl resumed>) = 0 [pid 5063] restart_syscall(<... resuming interrupted clone ...> [pid 5061] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5063] <... restart_syscall resumed>) = 0 [pid 5061] <... close resumed>) = 0 [pid 5136] <... write resumed>) = 20 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] exit_group(0 [pid 5068] <... ioctl resumed>) = 0 [pid 5136] <... exit_group resumed>) = ? [pid 5068] close(3 [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5139 attached [pid 5138] sendfile(4, 3, [122] [pid 5136] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5063] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5139 [pid 5133] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5063] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5140 attached [pid 5133] <... open resumed>) = 5 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5063] close(3 [pid 5140] set_robust_list(0x555556679660, 24 [pid 5139] set_robust_list(0x555556679660, 24 [pid 5133] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5140 [pid 5063] <... close resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5141 ./strace-static-x86_64: Process 5141 attached [pid 5065] <... close resumed>) = 0 [pid 5141] set_robust_list(0x555556679660, 24 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] <... set_robust_list resumed>) = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5142 attached ) = 0 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5142 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5142] set_robust_list(0x555556679660, 24 [pid 5139] <... prctl resumed>) = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] setpgid(0, 0 [pid 5140] <... prctl resumed>) = 0 [pid 5141] <... setpgid resumed>) = 0 [pid 5140] setpgid(0, 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] setpgid(0, 0) = 0 [pid 5140] <... setpgid resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... openat resumed>) = 3 [pid 5140] <... openat resumed>) = 3 [pid 5139] <... openat resumed>) = 3 [pid 5140] write(3, "1000", 4 [pid 5139] write(3, "1000", 4 [pid 5140] <... write resumed>) = 4 [pid 5140] close(3 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5140] <... close resumed>) = 0 [pid 5139] <... write resumed>) = 4 [pid 5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5139] close(3 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] <... openat resumed>) = 3 [pid 5139] <... close resumed>) = 0 [pid 5142] <... prctl resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5133] <... write resumed>) = 20 [pid 5142] setpgid(0, 0 [pid 5141] write(3, "1000", 4 [pid 5140] <... openat resumed>) = 4 [pid 5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5133] exit_group(0 [pid 5142] <... setpgid resumed>) = 0 [pid 5141] <... write resumed>) = 4 [pid 5140] sendfile(4, 3, [122] [pid 5133] <... exit_group resumed>) = ? [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] <... openat resumed>) = 3 [pid 5133] +++ exited with 0 +++ [pid 5141] close(3) = 0 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5142] <... openat resumed>) = 3 [pid 5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5062] <... openat resumed>) = 3 [pid 5141] <... openat resumed>) = 3 [pid 5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5141] <... openat resumed>) = 4 [pid 5141] sendfile(4, 3, [122] [pid 5062] <... ioctl resumed>) = 0 [pid 5142] write(3, "1000", 4 [pid 5139] <... openat resumed>) = 4 [pid 5142] <... write resumed>) = 4 [pid 5139] sendfile(4, 3, [122] [pid 5142] close(3 [pid 5062] close(3) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556679650) = 5143 ./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x555556679660, 24) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5143] sendfile(4, 3, [122] [pid 5142] <... close resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 90.282787][ T5139] syz-executor261 (5139): drop_caches: 3 [ 90.301715][ T5140] syz-executor261 (5140): drop_caches: 3 [ 90.317275][ T5141] syz-executor261 (5141): drop_caches: 3 [ 90.320754][ T5138] syz-executor261 (5138): drop_caches: 3 [ 90.353700][ T5142] syz-executor261 (5142): drop_caches: 3 [ 90.388409][ T5143] syz-executor261 (5143): drop_caches: 3 [ 90.691612][ T5139] syz-executor261 (5139): drop_caches: 3 [pid 5142] sendfile(4, 3, [122] [pid 5139] <... sendfile resumed> => [693], 571) = 571 [pid 5139] memfd_create("syzkaller", 0 [pid 5143] <... sendfile resumed> => [693], 571) = 571 [pid 5139] <... memfd_create resumed>) = 5 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [ 90.740671][ T5138] syz-executor261 (5138): drop_caches: 3 [ 90.742022][ T5140] syz-executor261 (5140): drop_caches: 3 [ 90.759226][ T5143] syz-executor261 (5143): drop_caches: 3 [pid 5138] <... sendfile resumed> => [693], 571) = 571 [pid 5138] memfd_create("syzkaller", 0) = 5 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcad0467000 [pid 5143] memfd_create("syzkaller", 0) = 5 [pid 5141] <... sendfile resumed> => [693], 571) = 571 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] <... sendfile resumed> => [693], 571) = 571 [pid 5140] <... sendfile resumed> => [693], 571) = 571 [pid 5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5143] <... mmap resumed>) = 0x7fcad0467000 [pid 5141] memfd_create("syzkaller", 0 [pid 5140] memfd_create("syzkaller", 0 [pid 5142] memfd_create("syzkaller", 0 [pid 5141] <... memfd_create resumed>) = 5 [pid 5140] <... memfd_create resumed>) = 5 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] <... memfd_create resumed>) = 5 [pid 5141] <... mmap resumed>) = 0x7fcad0467000 [ 90.781469][ T5142] syz-executor261 (5142): drop_caches: 3 [ 90.784120][ T5141] syz-executor261 (5141): drop_caches: 3 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5140] <... mmap resumed>) = 0x7fcad0467000 [pid 5142] <... mmap resumed>) = 0x7fcad0467000 [pid 5138] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5139] <... write resumed>) = 2097152 [pid 5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5141] <... write resumed>) = 2097152 [pid 5139] munmap(0x7fcad0467000, 138412032 [pid 5138] <... write resumed>) = 2097152 [pid 5138] munmap(0x7fcad0467000, 138412032 [pid 5139] <... munmap resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5138] <... munmap resumed>) = 0 [pid 5139] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5139] ioctl(6, LOOP_CLR_FD) = 0 [pid 5141] munmap(0x7fcad0467000, 138412032 [pid 5139] ioctl(6, LOOP_SET_FD, 5 [pid 5138] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5143] <... write resumed>) = 2097152 [pid 5142] <... write resumed>) = 2097152 [pid 5139] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] <... openat resumed>) = 6 [pid 5139] close(6) = 0 [pid 5139] close(5 [pid 5143] munmap(0x7fcad0467000, 138412032 [pid 5142] munmap(0x7fcad0467000, 138412032 [pid 5141] <... munmap resumed>) = 0 [pid 5140] <... write resumed>) = 2097152 [pid 5138] ioctl(6, LOOP_SET_FD, 5 [pid 5141] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5141] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5141] ioctl(6, LOOP_CLR_FD) = 0 [pid 5138] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] ioctl(6, LOOP_CLR_FD [pid 5139] <... close resumed>) = 0 [pid 5138] <... ioctl resumed>) = 0 [pid 5141] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5141] close(6) = 0 [pid 5139] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5141] close(5 [pid 5143] <... munmap resumed>) = 0 [pid 5142] <... munmap resumed>) = 0 [pid 5140] munmap(0x7fcad0467000, 138412032 [pid 5138] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5140] <... munmap resumed>) = 0 [pid 5139] <... open resumed>) = 5 [pid 5138] close(6) = 0 [pid 5142] <... openat resumed>) = 6 [pid 5139] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5143] <... openat resumed>) = 6 [pid 5138] close(5 [pid 5143] ioctl(6, LOOP_SET_FD, 5 [pid 5142] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5143] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] ioctl(6, LOOP_CLR_FD [pid 5143] ioctl(6, LOOP_CLR_FD [pid 5142] <... ioctl resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5139] <... write resumed>) = 20 [pid 5143] <... ioctl resumed>) = 0 [pid 5140] <... openat resumed>) = 6 [pid 5139] exit_group(0 [pid 5140] ioctl(6, LOOP_SET_FD, 5 [pid 5139] <... exit_group resumed>) = ? [pid 5140] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] +++ exited with 0 +++ [pid 5140] ioctl(6, LOOP_CLR_FD [pid 5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5143] ioctl(6, LOOP_SET_FD, 5 [pid 5142] ioctl(6, LOOP_SET_FD, 5 [pid 5140] <... ioctl resumed>) = 0 [pid 5143] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] close(6 [pid 5142] close(6 [pid 5143] <... close resumed>) = 0 [pid 5142] <... close resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5140] ioctl(6, LOOP_SET_FD, 5 [pid 5143] close(5 [pid 5142] close(5 [pid 5138] <... close resumed>) = 0 [pid 5140] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] close(6) = 0 [pid 5140] close(5 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5141] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5061] <... openat resumed>) = 3 [pid 5061] ioctl(3, LOOP_CLR_FD) = 0 [pid 5141] <... open resumed>) = 5 [pid 5061] close(3 [pid 5141] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5061] <... close resumed>) = 0 [pid 5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5061] <... clone resumed>, child_tidptr=0x555556679650) = 5144 [pid 5142] <... close resumed>) = 0 [pid 5141] <... write resumed>) = 20 [pid 5140] <... close resumed>) = 0 [pid 5138] <... open resumed>) = 5 [pid 5142] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5141] exit_group(0 [pid 5138] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20./strace-static-x86_64: Process 5144 attached [pid 5142] <... open resumed>) = 5 [pid 5141] <... exit_group resumed>) = ? [pid 5142] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5144] set_robust_list(0x555556679660, 24 [pid 5141] +++ exited with 0 +++ [pid 5144] <... set_robust_list resumed>) = 0 [pid 5143] <... close resumed>) = 0 [pid 5142] <... write resumed>) = 20 [pid 5140] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5138] <... write resumed>) = 20 [pid 5063] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5142] exit_group(0 [pid 5140] <... open resumed>) = 5 [pid 5138] exit_group(0 [pid 5144] <... prctl resumed>) = 0 [pid 5143] <... open resumed>) = 5 [pid 5142] <... exit_group resumed>) = ? [pid 5140] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5144] setpgid(0, 0 [pid 5142] +++ exited with 0 +++ [pid 5143] write(5, "\x14\x00\x00\x00\x49\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 20 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5144] <... setpgid resumed>) = 0 [pid 5138] <... exit_group resumed>) = ? [pid 5063] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5063] <... openat resumed>) = 3 [pid 5065] <... openat resumed>) = 3 [pid 5063] ioctl(3, LOOP_CLR_FD [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5063] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5063] close(3 [pid 5065] close(3 [pid 5063] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5063] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5140] <... write resumed>) = 20 [pid 5140] exit_group(0) = ? ./strace-static-x86_64: Process 5145 attached [pid 5143] <... write resumed>) = 20 [pid 5140] +++ exited with 0 +++ [pid 5138] +++ exited with 0 +++ [pid 5145] set_robust_list(0x555556679660, 24 [pid 5143] exit_group(0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5065] <... clone resumed>, child_tidptr=0x555556679650) = 5145 [pid 5063] <... clone resumed>, child_tidptr=0x555556679650) = 5146 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5143] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5146 attached [pid 5146] set_robust_list(0x555556679660, 24) = 0 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] +++ exited with 0 +++ [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] setpgid(0, 0 [pid 5145] setpgid(0, 0 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5145] <... setpgid resumed>) = 0 [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5146] <... setpgid resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... restart_syscall resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5145] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5146] <... openat resumed>) = 3 [pid 5144] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5067] <... openat resumed>) = 3 [pid 5062] <... openat resumed>) = 3 [pid 5146] write(3, "1000", 4 [pid 5145] write(3, "1000", 4 [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5146] <... write resumed>) = 4 [pid 5144] write(3, "1000", 4 [pid 5068] <... openat resumed>) = 3 [pid 5146] close(3 [pid 5067] <... ioctl resumed>) = 0 [pid 5146] <... close resumed>) = 0 [pid 5144] <... write resumed>) = 4 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] close(3 [pid 5062] <... ioctl resumed>) = 0 [pid 5145] <... write resumed>) = 4 [pid 5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5144] close(3 [pid 5146] <... openat resumed>) = 3 [pid 5145] close(3 [pid 5144] <... close resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5062] close(3 [pid 5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5145] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] <... openat resumed>) = 4 [pid 5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5144] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5062] <... close resumed>) = 0 [pid 5146] sendfile(4, 3, [122] [pid 5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] <... close resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5145] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] <... openat resumed>) = 4 [pid 5144] sendfile(4, 3, [122]./strace-static-x86_64: Process 5149 attached ./strace-static-x86_64: Process 5148 attached ./strace-static-x86_64: Process 5147 attached [pid 5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] <... clone resumed>, child_tidptr=0x555556679650) = 5147 [pid 5148] set_robust_list(0x555556679660, 24) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5147] set_robust_list(0x555556679660, 24 [pid 5145] <... openat resumed>) = 4 [pid 5062] <... clone resumed>, child_tidptr=0x555556679650) = 5149 [pid 5149] set_robust_list(0x555556679660, 24) = 0 [pid 5148] <... prctl resumed>) = 0 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5145] sendfile(4, 3, [122] [pid 5148] setpgid(0, 0) = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5148] <... openat resumed>) = 3 [pid 5149] <... prctl resumed>) = 0 [pid 5148] write(3, "1000", 4 [pid 5147] <... prctl resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x555556679650) = 5148 [pid 5149] setpgid(0, 0 [pid 5147] setpgid(0, 0 [pid 5149] <... setpgid resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] <... write resumed>) = 4 [pid 5149] <... openat resumed>) = 3 [pid 5148] close(3 [pid 5147] <... setpgid resumed>) = 0 [pid 5148] <... close resumed>) = 0 [pid 5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5148] sendfile(4, 3, [122] [pid 5149] write(3, "1000", 4 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] <... write resumed>) = 4 [pid 5149] close(3) = 0 [pid 5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5147] <... openat resumed>) = 3 [pid 5149] <... openat resumed>) = 3 [pid 5147] write(3, "1000", 4 [pid 5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] <... write resumed>) = 4 [pid 5147] close(3) = 0 [pid 5149] <... openat resumed>) = 4 [pid 5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5149] sendfile(4, 3, [122] [pid 5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 91.409416][ T5145] syz-executor261 (5145): drop_caches: 3