./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4009899595 <...> Warning: Permanently added '10.128.10.4' (ED25519) to the list of known hosts. execve("./syz-executor4009899595", ["./syz-executor4009899595"], 0x7ffcdb05fef0 /* 10 vars */) = 0 brk(NULL) = 0x555555ee9000 brk(0x555555ee9d00) = 0x555555ee9d00 arch_prctl(ARCH_SET_FS, 0x555555ee9380) = 0 set_tid_address(0x555555ee9650) = 5057 set_robust_list(0x555555ee9660, 24) = 0 rseq(0x555555ee9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4009899595", 4096) = 28 getrandom("\x55\x0d\xe1\x78\x2d\xd2\xdd\x3e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555ee9d00 brk(0x555555f0ad00) = 0x555555f0ad00 brk(0x555555f0b000) = 0x555555f0b000 mprotect(0x7ff7f353d000, 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 5058 attached , child_tidptr=0x555555ee9650) = 5058 [pid 5058] set_robust_list(0x555555ee9660, 24 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... set_robust_list resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5059 attached [pid 5059] set_robust_list(0x555555ee9660, 24 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... clone resumed>, child_tidptr=0x555555ee9650) = 5059 [pid 5059] <... set_robust_list resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5060 attached [pid 5058] close(3 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] <... clone resumed>, child_tidptr=0x555555ee9650) = 5060 [pid 5060] set_robust_list(0x555555ee9660, 24 [pid 5058] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... set_robust_list resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] close(3) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5062 attached ./strace-static-x86_64: Process 5061 attached [pid 5062] set_robust_list(0x555555ee9660, 24 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5061 ./strace-static-x86_64: Process 5064 attached [pid 5057] <... clone resumed>, child_tidptr=0x555555ee9650) = 5062 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5061] set_robust_list(0x555555ee9660, 24 [pid 5060] <... openat resumed>) = 3 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] set_robust_list(0x555555ee9660, 24 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5064] <... set_robust_list resumed>) = 0 [pid 5061] <... set_robust_list resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5064 ./strace-static-x86_64: Process 5065 attached [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] set_robust_list(0x555555ee9660, 24) = 0 [pid 5064] <... prctl resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5064] setpgid(0, 0) = 0 [pid 5060] close(3 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] <... openat resumed>) = 3 [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... clone resumed>, child_tidptr=0x555555ee9650) = 5065 [pid 5065] <... openat resumed>) = 3 [pid 5064] <... openat resumed>) = 3 [pid 5062] ioctl(3, LOOP_CLR_FD [pid 5061] <... prctl resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5061] setpgid(0, 0./strace-static-x86_64: Process 5066 attached ) = 0 ./strace-static-x86_64: Process 5067 attached [pid 5066] set_robust_list(0x555555ee9660, 24 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5064] write(3, "1000", 4 [pid 5062] close(3 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5066 [pid 5057] <... clone resumed>, child_tidptr=0x555555ee9650) = 5067 [pid 5067] set_robust_list(0x555555ee9660, 24 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5064] <... write resumed>) = 4 [pid 5062] <... close resumed>) = 0 [pid 5061] <... openat resumed>) = 3 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] write(3, "1000", 4 [pid 5067] <... set_robust_list resumed>) = 0 [pid 5065] close(3 [pid 5064] close(3 [pid 5061] <... write resumed>) = 4 ./strace-static-x86_64: Process 5068 attached [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5066] <... prctl resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5064] <... close resumed>) = 0 [pid 5061] close(3 [pid 5068] set_robust_list(0x555555ee9660, 24 [pid 5066] setpgid(0, 0 [pid 5061] <... close resumed>) = 0 [pid 5068] <... set_robust_list resumed>) = 0 [pid 5066] <... setpgid resumed>) = 0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5068 [pid 5061] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... openat resumed>) = 3 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] <... openat resumed>) = 3 [pid 5068] <... prctl resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5061] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] setpgid(0, 0 [pid 5061] <... openat resumed>) = 4 [pid 5068] <... setpgid resumed>) = 0 [pid 5066] write(3, "1000", 4 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... write resumed>) = 4 [pid 5064] <... openat resumed>) = 3 [pid 5061] sendfile(4, 3, [88] [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5064] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5068] <... openat resumed>) = 3 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5066] close(3 [pid 5064] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5069 attached [pid 5067] close(3 [pid 5066] <... close resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5069 [pid 5064] sendfile(4, 3, [88] [pid 5068] write(3, "1000", 4 [pid 5066] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5068] <... write resumed>) = 4 [pid 5066] <... openat resumed>) = 3 [pid 5068] close(3) = 0 [pid 5069] set_robust_list(0x555555ee9660, 24 [pid 5068] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5069] <... set_robust_list resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] <... openat resumed>) = 4 [pid 5068] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5066] sendfile(4, 3, [88] [pid 5068] <... openat resumed>) = 4 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5070 [pid 5068] sendfile(4, 3, [88] [pid 5070] set_robust_list(0x555555ee9660, 24 [pid 5069] <... prctl resumed>) = 0 [pid 5069] setpgid(0, 0 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... setpgid resumed>) = 0 [pid 5070] <... prctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] setpgid(0, 0) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] write(3, "1000", 4) = 4 [pid 5069] close(3 [pid 5070] <... openat resumed>) = 3 [pid 5070] write(3, "1000", 4) = 4 [pid 5069] <... close resumed>) = 0 [pid 5070] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5070] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5069] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5070] sendfile(4, 3, [88] [pid 5069] sendfile(4, 3, [88] [pid 5066] <... sendfile resumed> => [95], 7) = 7 [pid 5066] memfd_create("syzkaller", 0 [pid 5064] <... sendfile resumed> => [95], 7) = 7 [pid 5068] <... sendfile resumed> => [95], 7) = 7 [pid 5066] <... memfd_create resumed>) = 5 [pid 5068] memfd_create("syzkaller", 0 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5070] <... sendfile resumed> => [95], 7) = 7 [pid 5069] <... sendfile resumed> => [95], 7) = 7 [pid 5064] memfd_create("syzkaller", 0 [pid 5061] <... sendfile resumed> => [95], 7) = 7 [pid 5068] <... memfd_create resumed>) = 5 [pid 5061] memfd_create("syzkaller", 0) = 5 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5064] <... memfd_create resumed>) = 5 [pid 5070] memfd_create("syzkaller", 0 [ 57.424190][ T5066] syz-executor400 (5066): drop_caches: 1 [ 57.424190][ T5070] syz-executor400 (5070): drop_caches: 1 [ 57.437664][ T5068] syz-executor400 (5068): drop_caches: 1 [ 57.439886][ T5061] syz-executor400 (5061): drop_caches: 1 [ 57.455617][ T5064] syz-executor400 (5064): drop_caches: 1 [ 57.458586][ T5069] syz-executor400 (5069): drop_caches: 1 [pid 5069] memfd_create("syzkaller", 0 [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 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5061] <... mmap resumed>) = 0x7ff7eb000000 [pid 5064] <... mmap resumed>) = 0x7ff7eb000000 [pid 5069] <... memfd_create resumed>) = 5 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5070] <... memfd_create resumed>) = 5 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5061] 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 5066] <... write resumed>) = 2097152 [pid 5066] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5068] 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 5066] openat(AT_FDCWD, "/dev/loop2", O_RDWR [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 [pid 5066] <... openat resumed>) = 6 [pid 5066] ioctl(6, LOOP_SET_FD, 5) = 0 [pid 5061] <... write resumed>) = 2097152 [pid 5066] close(5) = 0 [pid 5066] close(6) = 0 [pid 5061] munmap(0x7ff7eb000000, 138412032 [pid 5066] mkdir("./file0", 0777 [pid 5070] 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 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 5061] <... munmap resumed>) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [ 57.571354][ T5066] loop2: detected capacity change from 0 to 4096 [pid 5061] ioctl(6, LOOP_SET_FD, 5 [pid 5066] mount("/dev/loop2", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5069] <... write resumed>) = 2097152 [pid 5068] <... write resumed>) = 2097152 [pid 5064] <... write resumed>) = 2097152 [pid 5061] <... ioctl resumed>) = 0 [pid 5061] close(5) = 0 [pid 5061] close(6) = 0 [pid 5061] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 57.612376][ T5061] loop0: detected capacity change from 0 to 4096 [ 57.626784][ T5066] ntfs: (device loop2): 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 5061] mount("/dev/loop0", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5069] munmap(0x7ff7eb000000, 138412032 [pid 5068] munmap(0x7ff7eb000000, 138412032 [pid 5064] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5070] <... write resumed>) = 2097152 [pid 5070] munmap(0x7ff7eb000000, 138412032) = 0 [ 57.657502][ T5061] ntfs: (device loop0): 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. [ 57.698804][ T5066] ntfs: (device loop2): read_ntfs_boot_sector(): Primary boot sector is invalid. [pid 5064] ioctl(6, LOOP_SET_FD, 5 [pid 5068] <... munmap resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5069] <... munmap resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] ioctl(6, LOOP_SET_FD, 5 [pid 5069] <... openat resumed>) = 6 [pid 5068] <... openat resumed>) = 6 [pid 5064] <... ioctl resumed>) = 0 [pid 5069] ioctl(6, LOOP_SET_FD, 5 [ 57.712082][ T5064] loop1: detected capacity change from 0 to 4096 [ 57.721446][ T5066] ntfs: (device loop2): read_ntfs_boot_sector(): Hot-fix: Recovering invalid primary boot sector from backup copy. [ 57.724193][ T5070] loop5: detected capacity change from 0 to 4096 [ 57.741938][ T5069] loop4: detected capacity change from 0 to 4096 [ 57.750385][ T5068] loop3: detected capacity change from 0 to 4096 [pid 5068] ioctl(6, LOOP_SET_FD, 5 [pid 5070] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5064] close(5) = 0 [pid 5064] close(6) = 0 [pid 5064] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 57.752911][ T5066] ntfs: (device loop2): ntfs_mapping_pairs_decompress(): Corrupt attribute. [ 57.763893][ T5061] ntfs: (device loop0): read_ntfs_boot_sector(): Primary boot sector is invalid. [ 57.770660][ T5064] ntfs: (device loop1): 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 5064] mount("/dev/loop1", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5068] close(5 [pid 5070] close(5 [pid 5069] close(5) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] close(6 [pid 5070] close(6 [pid 5069] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5069] mount("/dev/loop4", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5068] <... close resumed>) = 0 [pid 5070] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5070] mount("/dev/loop5", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5068] close(6) = 0 [pid 5068] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 57.791431][ T5066] ntfs: (device loop2): ntfs_read_block(): Failed to read from inode 0xa, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5). [ 57.799492][ T5069] ntfs: (device loop4): 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. [ 57.825856][ T5061] ntfs: (device loop0): read_ntfs_boot_sector(): Hot-fix: Recovering invalid primary boot sector from backup copy. [pid 5068] mount("/dev/loop3", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5070] <... mount resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5070] chdir("./file0") = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5064] <... mount resumed>) = 0 [pid 5070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] creat("./file1", 000 [pid 5064] <... openat resumed>) = 5 [pid 5064] chdir("./file0" [pid 5070] <... creat resumed>) = 6 [pid 5064] <... chdir resumed>) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5064] creat("./file1", 000) = 6 [pid 5064] exit_group(0) = ? [pid 5064] +++ exited with 0 +++ [ 57.867271][ T5064] ntfs: volume version 3.1. [ 57.877937][ T5070] ntfs: volume version 3.1. [pid 5070] exit_group(0 [pid 5059] --- 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=19 /* 0.19 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached [pid 5073] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5073 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5070] <... exit_group resumed>) = ? [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5070] +++ exited with 0 +++ [pid 5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5073] sendfile(4, 3, [88] [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x555555ee9660, 24) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] <... mount resumed>) = 0 [ 57.923195][ T5066] ntfs: volume version 3.1. [ 57.924644][ T5068] ntfs: volume version 3.1. [ 57.933933][ T5061] ntfs: volume version 3.1. [pid 5074] write(3, "1000", 4 [pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... write resumed>) = 4 [pid 5068] <... mount resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5068] chdir("./file0") = 0 [pid 5066] <... openat resumed>) = 5 [pid 5074] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] chdir("./file0" [pid 5074] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5068] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] <... chdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... openat resumed>) = 3 [pid 5066] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5074] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5066] creat("./file1", 000 [pid 5074] <... openat resumed>) = 4 [pid 5068] creat("./file1", 000 [pid 5074] sendfile(4, 3, [88] [pid 5066] <... creat resumed>) = 6 [pid 5066] exit_group(0) = ? [pid 5066] +++ exited with 0 +++ [pid 5068] <... creat resumed>) = 6 [pid 5061] <... mount resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5068] exit_group(0 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5068] <... exit_group resumed>) = ? [ 57.987843][ T5069] ntfs: volume version 3.1. [pid 5060] <... restart_syscall resumed>) = 0 [pid 5068] +++ exited with 0 +++ [pid 5061] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5061] <... openat resumed>) = 5 [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5062] <... restart_syscall resumed>) = 0 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5061] chdir("./file0" [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5075 attached [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] <... chdir resumed>) = 0 [pid 5075] set_robust_list(0x555555ee9660, 24 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5075 ./strace-static-x86_64: Process 5076 attached [pid 5075] <... set_robust_list resumed>) = 0 [pid 5076] set_robust_list(0x555555ee9660, 24 [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... mount resumed>) = 0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5076 [pid 5061] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] <... set_robust_list resumed>) = 0 [pid 5075] <... prctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] setpgid(0, 0 [pid 5069] <... openat resumed>) = 5 [pid 5061] creat("./file1", 000 [pid 5075] <... setpgid resumed>) = 0 [pid 5076] <... prctl resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] chdir("./file0" [pid 5076] setpgid(0, 0) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5069] <... chdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] write(3, "1000", 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] <... write resumed>) = 4 [pid 5075] close(3 [pid 5069] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] creat("./file1", 000 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5061] <... creat resumed>) = 6 [pid 5061] exit_group(0) = ? [pid 5069] <... creat resumed>) = 6 [pid 5069] exit_group(0) = ? [pid 5076] write(3, "1000", 4 [pid 5075] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5069] +++ exited with 0 +++ [pid 5061] +++ exited with 0 +++ [pid 5076] <... write resumed>) = 4 [pid 5075] <... openat resumed>) = 3 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5076] close(3 [pid 5075] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5075] sendfile(4, 3, [88] [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5077 attached , child_tidptr=0x555555ee9650) = 5077 [pid 5077] set_robust_list(0x555555ee9660, 24) = 0 ./strace-static-x86_64: Process 5078 attached [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... openat resumed>) = 3 [pid 5077] <... prctl resumed>) = 0 [pid 5077] setpgid(0, 0) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1000", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5078] set_robust_list(0x555555ee9660, 24 [pid 5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5078 [pid 5076] <... openat resumed>) = 4 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5076] sendfile(4, 3, [88] [pid 5077] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... openat resumed>) = 4 [pid 5077] sendfile(4, 3, [88] [pid 5078] <... prctl resumed>) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5078] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5078] sendfile(4, 3, [88] [pid 5074] <... sendfile resumed> => [95], 7) = 7 [pid 5073] <... sendfile resumed> => [95], 7) = 7 [pid 5074] memfd_create("syzkaller", 0) = 5 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] memfd_create("syzkaller", 0) = 5 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 58.276995][ T5074] syz-executor400 (5074): drop_caches: 1 [ 58.278559][ T5073] syz-executor400 (5073): drop_caches: 1 [pid 5074] <... mmap resumed>) = 0x7ff7eb000000 [pid 5074] 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(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 5075] <... sendfile resumed> => [95], 7) = 7 [pid 5075] memfd_create("syzkaller", 0 [pid 5077] <... sendfile resumed> => [95], 7) = 7 [pid 5076] <... sendfile resumed> => [95], 7) = 7 [pid 5075] <... memfd_create resumed>) = 5 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... write resumed>) = 2097152 [pid 5075] <... mmap resumed>) = 0x7ff7eb000000 [pid 5076] memfd_create("syzkaller", 0 [ 58.415047][ T5075] syz-executor400 (5075): drop_caches: 1 [ 58.436530][ T5076] syz-executor400 (5076): drop_caches: 1 [ 58.448422][ T5077] syz-executor400 (5077): drop_caches: 1 [pid 5077] memfd_create("syzkaller", 0) = 5 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5076] <... memfd_create resumed>) = 5 [pid 5074] munmap(0x7ff7eb000000, 138412032 [pid 5078] <... sendfile resumed> => [95], 7) = 7 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] 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 5074] <... munmap resumed>) = 0 [pid 5073] <... write resumed>) = 2097152 [pid 5076] <... mmap resumed>) = 0x7ff7eb000000 [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] memfd_create("syzkaller", 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] munmap(0x7ff7eb000000, 138412032 [pid 5074] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5074] close(5 [pid 5078] <... memfd_create resumed>) = 5 [pid 5073] <... munmap resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... write resumed>) = 2097152 [pid 5073] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] <... mmap resumed>) = 0x7ff7eb000000 [ 58.482146][ T5078] syz-executor400 (5078): drop_caches: 1 [pid 5077] munmap(0x7ff7eb000000, 138412032 [pid 5073] close(5 [pid 5074] <... close resumed>) = 0 [pid 5077] <... munmap resumed>) = 0 [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 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] creat("./file1", 000 [pid 5077] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5077] close(5 [pid 5074] <... creat resumed>) = 5 [pid 5075] <... write resumed>) = 2097152 [pid 5074] exit_group(0) = ? [pid 5073] <... close resumed>) = 0 [pid 5073] creat("./file1", 000 [pid 5077] <... close resumed>) = 0 [pid 5075] munmap(0x7ff7eb000000, 138412032 [pid 5074] +++ exited with 0 +++ [pid 5073] <... creat resumed>) = 5 [pid 5077] creat("./file1", 000 [pid 5073] exit_group(0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [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] <... creat resumed>) = 5 [pid 5073] <... exit_group resumed>) = ? [pid 5077] exit_group(0 [pid 5073] +++ exited with 0 +++ [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... exit_group resumed>) = ? [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5079 attached [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] set_robust_list(0x555555ee9660, 24 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... set_robust_list resumed>) = 0 [pid 5075] <... munmap resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5079 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [pid 5076] <... write resumed>) = 2097152 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] +++ exited with 0 +++ [pid 5075] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] set_robust_list(0x555555ee9660, 24 [pid 5079] <... openat resumed>) = 3 [pid 5075] close(5 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5079] write(3, "1000", 4 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5079] <... write resumed>) = 4 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5079] close(3 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached [pid 5079] <... close resumed>) = 0 [pid 5081] set_robust_list(0x555555ee9660, 24 [pid 5079] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5081 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... openat resumed>) = 3 [pid 5081] <... prctl resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5081] setpgid(0, 0 [pid 5079] <... openat resumed>) = 4 [pid 5081] <... setpgid resumed>) = 0 [pid 5079] sendfile(4, 3, [88] [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... prctl resumed>) = 0 [pid 5078] <... write resumed>) = 2097152 [pid 5076] munmap(0x7ff7eb000000, 138412032 [pid 5075] <... close resumed>) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5075] creat("./file1", 000 [pid 5081] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... creat resumed>) = 5 [pid 5080] <... openat resumed>) = 3 [pid 5081] write(3, "1000", 4 [pid 5080] write(3, "1000", 4 [pid 5081] <... write resumed>) = 4 [pid 5080] <... write resumed>) = 4 [pid 5080] close(3 [pid 5081] close(3 [pid 5080] <... close resumed>) = 0 [pid 5075] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5080] <... openat resumed>) = 3 [pid 5075] <... exit_group resumed>) = ? [pid 5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5075] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 4 [pid 5078] munmap(0x7ff7eb000000, 138412032 [pid 5080] sendfile(4, 3, [88] [pid 5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5078] <... munmap resumed>) = 0 [pid 5076] <... munmap resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... openat resumed>) = 4 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5081] sendfile(4, 3, [88] [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5082 attached [pid 5076] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5082 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] set_robust_list(0x555555ee9660, 24) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] close(5 [pid 5076] close(5 [pid 5082] write(3, "1000", 4) = 4 [pid 5082] close(3) = 0 [pid 5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5082] sendfile(4, 3, [88] [pid 5078] <... close resumed>) = 0 [pid 5078] creat("./file1", 000) = 5 [pid 5078] exit_group(0) = ? [pid 5076] <... close resumed>) = 0 [pid 5076] creat("./file1", 000 [pid 5078] +++ exited with 0 +++ [pid 5076] <... creat resumed>) = 5 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5076] exit_group(0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... exit_group resumed>) = ? [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5083 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x555555ee9660, 24) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] setpgid(0, 0 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... setpgid resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1000", 4 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5084 [pid 5083] <... write resumed>) = 4 ./strace-static-x86_64: Process 5084 attached [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5084] set_robust_list(0x555555ee9660, 24) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... openat resumed>) = 3 [pid 5079] <... sendfile resumed> => [95], 7) = 7 [pid 5084] <... prctl resumed>) = 0 [pid 5084] setpgid(0, 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5079] memfd_create("syzkaller", 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] sendfile(4, 3, [88] [pid 5084] <... openat resumed>) = 3 [pid 5079] <... memfd_create resumed>) = 5 [ 58.810680][ T5079] syz-executor400 (5079): drop_caches: 1 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] write(3, "1000", 4) = 4 [pid 5079] <... mmap resumed>) = 0x7ff7eb000000 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5084] sendfile(4, 3, [88] [pid 5080] <... sendfile resumed> => [95], 7) = 7 [pid 5080] memfd_create("syzkaller", 0) = 5 [ 58.859108][ T5080] syz-executor400 (5080): drop_caches: 1 [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 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5079] <... write resumed>) = 2097152 [pid 5081] <... sendfile resumed> => [95], 7) = 7 [pid 5081] memfd_create("syzkaller", 0) = 5 [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 5079] munmap(0x7ff7eb000000, 138412032 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5079] <... munmap resumed>) = 0 [ 58.958136][ T5081] syz-executor400 (5081): drop_caches: 1 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [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 5080] <... write resumed>) = 2097152 [pid 5079] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] munmap(0x7ff7eb000000, 138412032 [pid 5079] close(5 [pid 5082] <... sendfile resumed> => [95], 7) = 7 [pid 5082] memfd_create("syzkaller", 0) = 5 [pid 5080] <... munmap resumed>) = 0 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... close resumed>) = 0 [ 59.021242][ T5082] syz-executor400 (5082): drop_caches: 1 [pid 5084] <... sendfile resumed> => [95], 7) = 7 [pid 5080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] creat("./file1", 000 [pid 5080] close(5 [pid 5084] memfd_create("syzkaller", 0 [pid 5081] <... write resumed>) = 2097152 [pid 5079] <... creat resumed>) = 5 [pid 5084] <... memfd_create resumed>) = 5 [pid 5079] exit_group(0) = ? [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5081] munmap(0x7ff7eb000000, 138412032 [pid 5079] +++ exited with 0 +++ [pid 5081] <... munmap resumed>) = 0 [ 59.077967][ T5084] syz-executor400 (5084): drop_caches: 1 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] <... sendfile resumed> => [95], 7) = 7 [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 5080] <... close resumed>) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [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 5083] memfd_create("syzkaller", 0 [pid 5080] creat("./file1", 000 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5081] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] close(5 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... creat resumed>) = 5 ./strace-static-x86_64: Process 5085 attached [pid 5083] <... memfd_create resumed>) = 5 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5085 [pid 5085] set_robust_list(0x555555ee9660, 24 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5083] <... mmap resumed>) = 0x7ff7eb000000 [pid 5080] exit_group(0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... write resumed>) = 2097152 [pid 5081] <... close resumed>) = 0 [pid 5085] <... prctl resumed>) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5080] <... exit_group resumed>) = ? [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] creat("./file1", 000 [pid 5085] <... openat resumed>) = 3 [pid 5081] <... creat resumed>) = 5 [pid 5085] write(3, "1000", 4 [pid 5082] <... write resumed>) = 2097152 [pid 5081] exit_group(0 [pid 5085] <... write resumed>) = 4 [pid 5082] munmap(0x7ff7eb000000, 138412032 [pid 5081] <... exit_group resumed>) = ? [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5085] sendfile(4, 3, [88] [pid 5080] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5084] munmap(0x7ff7eb000000, 138412032 [ 59.128742][ T5083] syz-executor400 (5083): drop_caches: 1 [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5084] <... munmap resumed>) = 0 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- ./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x555555ee9660, 24) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5086 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5087 attached [pid 5084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [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 5082] <... munmap resumed>) = 0 [pid 5087] set_robust_list(0x555555ee9660, 24 [pid 5086] <... prctl resumed>) = 0 [pid 5084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5087 [pid 5082] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] close(5 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5086] setpgid(0, 0 [pid 5084] close(5 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] <... setpgid resumed>) = 0 [pid 5087] <... prctl resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] setpgid(0, 0 [pid 5086] <... openat resumed>) = 3 [pid 5087] <... setpgid resumed>) = 0 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5087] write(3, "1000", 4 [pid 5086] <... openat resumed>) = 3 [pid 5087] <... write resumed>) = 4 [pid 5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5087] close(3 [pid 5086] <... openat resumed>) = 4 [pid 5087] <... close resumed>) = 0 [pid 5086] sendfile(4, 3, [88] [pid 5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5084] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] creat("./file1", 000 [pid 5087] <... openat resumed>) = 4 [pid 5087] sendfile(4, 3, [88] [pid 5083] <... write resumed>) = 2097152 [pid 5082] <... creat resumed>) = 5 [pid 5083] munmap(0x7ff7eb000000, 138412032 [pid 5082] exit_group(0) = ? [pid 5084] creat("./file1", 000) = 5 [pid 5084] exit_group(0 [pid 5082] +++ exited with 0 +++ [pid 5084] <... exit_group resumed>) = ? [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5084] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5083] <... munmap resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] close(5./strace-static-x86_64: Process 5088 attached [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5088 [pid 5088] set_robust_list(0x555555ee9660, 24 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... set_robust_list resumed>) = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5089 [pid 5088] <... write resumed>) = 4 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5089 attached ) = 4 [pid 5088] sendfile(4, 3, [88] [pid 5089] set_robust_list(0x555555ee9660, 24) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... sendfile resumed> => [95], 7) = 7 [pid 5083] <... close resumed>) = 0 [pid 5089] <... prctl resumed>) = 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5083] creat("./file1", 000 [pid 5089] setpgid(0, 0 [pid 5083] <... creat resumed>) = 5 [pid 5089] <... setpgid resumed>) = 0 [pid 5083] exit_group(0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... exit_group resumed>) = ? [pid 5089] <... openat resumed>) = 3 [pid 5083] +++ exited with 0 +++ [pid 5089] write(3, "1000", 4 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5089] <... write resumed>) = 4 [pid 5085] <... memfd_create resumed>) = 5 [pid 5089] close(3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] <... mmap resumed>) = 0x7ff7eb000000 [pid 5089] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5089] sendfile(4, 3, [88] [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 59.351101][ T5085] syz-executor400 (5085): drop_caches: 1 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x555555ee9660, 24 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5090 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [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 5090] <... openat resumed>) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3) = 0 [pid 5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] <... write resumed>) = 2097152 [pid 5090] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5085] munmap(0x7ff7eb000000, 138412032 [pid 5090] <... openat resumed>) = 4 [pid 5090] sendfile(4, 3, [88] [pid 5086] <... sendfile resumed> => [95], 7) = 7 [pid 5085] <... munmap resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5085] close(5 [pid 5087] <... sendfile resumed> => [95], 7) = 7 [pid 5086] memfd_create("syzkaller", 0) = 5 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5087] memfd_create("syzkaller", 0 [pid 5085] <... close resumed>) = 0 [pid 5085] creat("./file1", 000) = 5 [ 59.513303][ T5086] syz-executor400 (5086): drop_caches: 1 [ 59.527492][ T5087] syz-executor400 (5087): drop_caches: 1 [pid 5085] exit_group(0 [pid 5087] <... memfd_create resumed>) = 5 [pid 5085] <... exit_group resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... mmap resumed>) = 0x7ff7eb000000 ./strace-static-x86_64: Process 5091 attached [pid 5091] set_robust_list(0x555555ee9660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5091 [pid 5091] <... set_robust_list resumed>) = 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 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5091] setpgid(0, 0) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [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 5091] write(3, "1000", 4) = 4 [pid 5091] close(3) = 0 [pid 5088] <... sendfile resumed> => [95], 7) = 7 [pid 5091] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5088] memfd_create("syzkaller", 0 [pid 5091] <... openat resumed>) = 3 [pid 5091] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5091] sendfile(4, 3, [88] [pid 5088] <... memfd_create resumed>) = 5 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5089] <... sendfile resumed> => [95], 7) = 7 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] 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 5089] <... memfd_create resumed>) = 5 [ 59.609084][ T5088] syz-executor400 (5088): drop_caches: 1 [ 59.630805][ T5089] syz-executor400 (5089): drop_caches: 1 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5087] <... write resumed>) = 2097152 [pid 5086] <... write resumed>) = 2097152 [pid 5090] <... sendfile resumed> => [95], 7) = 7 [pid 5087] munmap(0x7ff7eb000000, 138412032 [pid 5086] munmap(0x7ff7eb000000, 138412032 [pid 5090] memfd_create("syzkaller", 0 [pid 5087] <... munmap resumed>) = 0 [pid 5086] <... munmap resumed>) = 0 [pid 5090] <... memfd_create resumed>) = 5 [pid 5086] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5086] close(5 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5088] <... write resumed>) = 2097152 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5086] <... close resumed>) = 0 [pid 5088] munmap(0x7ff7eb000000, 138412032 [pid 5089] 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 [ 59.703879][ T5090] syz-executor400 (5090): drop_caches: 1 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... munmap resumed>) = 0 [pid 5086] creat("./file1", 000 [pid 5087] close(5 [pid 5086] <... creat resumed>) = 5 [pid 5086] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5086] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [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 5088] close(5) = 0 [pid 5086] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5087] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] creat("./file1", 000 [pid 5089] <... write resumed>) = 2097152 ./strace-static-x86_64: Process 5092 attached [pid 5089] munmap(0x7ff7eb000000, 138412032 [pid 5087] <... creat resumed>) = 5 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5092 [pid 5092] set_robust_list(0x555555ee9660, 24 [pid 5090] <... write resumed>) = 2097152 [pid 5088] creat("./file1", 000 [pid 5087] exit_group(0 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5090] munmap(0x7ff7eb000000, 138412032 [pid 5088] <... creat resumed>) = 5 [pid 5087] <... exit_group resumed>) = ? [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... munmap resumed>) = 0 [pid 5087] +++ exited with 0 +++ [pid 5092] <... prctl resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5092] setpgid(0, 0 [pid 5088] exit_group(0 [pid 5092] <... setpgid resumed>) = 0 [pid 5088] <... exit_group resumed>) = ? [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... munmap resumed>) = 0 [pid 5088] +++ exited with 0 +++ [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5092] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] write(3, "1000", 4 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... write resumed>) = 4 [pid 5090] close(5./strace-static-x86_64: Process 5093 attached [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5093 [pid 5093] set_robust_list(0x555555ee9660, 24) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... prctl resumed>) = 0 [pid 5093] setpgid(0, 0) = 0 [pid 5089] close(5 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] close(3 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5093] <... openat resumed>) = 3 [pid 5092] <... close resumed>) = 0 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... openat resumed>) = 3 [pid 5093] write(3, "1000", 4./strace-static-x86_64: Process 5094 attached ) = 4 [pid 5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5094] set_robust_list(0x555555ee9660, 24 [pid 5093] close(3 [pid 5092] <... openat resumed>) = 4 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5094 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5092] sendfile(4, 3, [88] [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5094] <... prctl resumed>) = 0 [pid 5093] <... openat resumed>) = 3 [pid 5094] setpgid(0, 0 [pid 5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5094] <... setpgid resumed>) = 0 [pid 5093] <... openat resumed>) = 4 [pid 5093] sendfile(4, 3, [88] [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... close resumed>) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5090] creat("./file1", 000 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5090] <... creat resumed>) = 5 [pid 5094] <... openat resumed>) = 3 [pid 5090] exit_group(0 [pid 5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5090] <... exit_group resumed>) = ? [pid 5094] <... openat resumed>) = 4 [pid 5094] sendfile(4, 3, [88] [pid 5089] <... close resumed>) = 0 [pid 5089] creat("./file1", 000 [pid 5090] +++ exited with 0 +++ [pid 5089] <... creat resumed>) = 5 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5089] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x555555ee9660, 24 [pid 5091] <... sendfile resumed> => [95], 7) = 7 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5096 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5096 attached [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5095 [pid 5096] set_robust_list(0x555555ee9660, 24) = 0 [pid 5095] <... prctl resumed>) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] setpgid(0, 0) = 0 [pid 5096] <... prctl resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] setpgid(0, 0 [pid 5095] <... openat resumed>) = 3 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] write(3, "1000", 4 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] <... write resumed>) = 4 [pid 5096] <... openat resumed>) = 3 [pid 5095] close(3) = 0 [pid 5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] write(3, "1000", 4 [pid 5095] <... openat resumed>) = 3 [pid 5096] <... write resumed>) = 4 [pid 5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5096] close(3 [pid 5095] <... openat resumed>) = 4 [pid 5096] <... close resumed>) = 0 [pid 5095] sendfile(4, 3, [88] [pid 5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5091] memfd_create("syzkaller", 0 [pid 5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5091] <... memfd_create resumed>) = 5 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5096] <... openat resumed>) = 4 [ 59.926018][ T5091] syz-executor400 (5091): drop_caches: 1 [pid 5096] sendfile(4, 3, [88] [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) = 2097152 [pid 5091] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5093] <... sendfile resumed> => [95], 7) = 7 [pid 5091] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] <... sendfile resumed> => [95], 7) = 7 [pid 5091] close(5 [pid 5093] memfd_create("syzkaller", 0 [pid 5092] memfd_create("syzkaller", 0 [pid 5091] <... close resumed>) = 0 [pid 5091] creat("./file1", 000 [pid 5093] <... memfd_create resumed>) = 5 [pid 5092] <... memfd_create resumed>) = 5 [pid 5091] <... creat resumed>) = 5 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5094] <... sendfile resumed> => [95], 7) = 7 [ 60.158652][ T5093] syz-executor400 (5093): drop_caches: 1 [ 60.165749][ T5092] syz-executor400 (5092): drop_caches: 1 [ 60.197296][ T5094] syz-executor400 (5094): drop_caches: 1 [pid 5094] memfd_create("syzkaller", 0 [pid 5093] <... mmap resumed>) = 0x7ff7eb000000 [pid 5095] <... sendfile resumed> => [95], 7) = 7 [pid 5094] <... memfd_create resumed>) = 5 [pid 5091] exit_group(0 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] <... exit_group resumed>) = ? [pid 5095] memfd_create("syzkaller", 0 [pid 5094] <... mmap resumed>) = 0x7ff7eb000000 [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] +++ exited with 0 +++ [pid 5095] <... memfd_create resumed>) = 5 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5095] <... mmap resumed>) = 0x7ff7eb000000 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached , child_tidptr=0x555555ee9650) = 5097 [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 [ 60.214060][ T5095] syz-executor400 (5095): drop_caches: 1 [pid 5097] set_robust_list(0x555555ee9660, 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 [pid 5096] <... sendfile resumed> => [95], 7) = 7 [pid 5097] <... openat resumed>) = 3 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] memfd_create("syzkaller", 0 [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 5092] <... write resumed>) = 2097152 [pid 5096] <... memfd_create resumed>) = 5 [pid 5097] <... openat resumed>) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5092] munmap(0x7ff7eb000000, 138412032 [pid 5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5097] sendfile(4, 3, [88] [pid 5093] <... write resumed>) = 2097152 [ 60.265635][ T5096] syz-executor400 (5096): drop_caches: 1 [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] <... munmap resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] munmap(0x7ff7eb000000, 138412032 [pid 5092] close(5 [pid 5093] <... munmap resumed>) = 0 [pid 5094] <... write resumed>) = 2097152 [pid 5094] munmap(0x7ff7eb000000, 138412032 [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 [pid 5092] <... close resumed>) = 0 [pid 5095] <... write resumed>) = 2097152 [pid 5094] <... munmap resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5092] creat("./file1", 000 [pid 5094] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] munmap(0x7ff7eb000000, 138412032 [pid 5092] <... creat resumed>) = 5 [pid 5095] <... munmap resumed>) = 0 [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] exit_group(0 [pid 5094] close(5 [pid 5093] close(5 [pid 5092] <... exit_group resumed>) = ? [pid 5095] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5095] close(5 [pid 5092] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x555555ee9650) = 5098 [pid 5098] set_robust_list(0x555555ee9660, 24) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0 [pid 5096] <... write resumed>) = 2097152 [pid 5098] <... setpgid resumed>) = 0 [pid 5096] munmap(0x7ff7eb000000, 138412032 [pid 5095] <... close resumed>) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] <... close resumed>) = 0 [pid 5095] creat("./file1", 000 [pid 5098] <... openat resumed>) = 3 [pid 5096] <... munmap resumed>) = 0 [pid 5094] creat("./file1", 000 [pid 5093] <... close resumed>) = 0 [pid 5098] write(3, "1000", 4 [pid 5095] <... creat resumed>) = 5 [pid 5098] <... write resumed>) = 4 [pid 5096] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] <... creat resumed>) = 5 [pid 5098] close(3 [pid 5095] exit_group(0 [pid 5093] creat("./file1", 000 [pid 5098] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] <... exit_group resumed>) = ? [pid 5094] exit_group(0 [pid 5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] close(5 [pid 5094] <... exit_group resumed>) = ? [pid 5093] <... creat resumed>) = 5 [pid 5098] <... openat resumed>) = 3 [pid 5094] +++ exited with 0 +++ [pid 5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5093] exit_group(0 [pid 5098] <... openat resumed>) = 4 [pid 5093] <... exit_group resumed>) = ? [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5098] sendfile(4, 3, [88] [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5095] +++ exited with 0 +++ [pid 5093] +++ exited with 0 +++ [pid 5099] set_robust_list(0x555555ee9660, 24 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5099] <... prctl resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... restart_syscall resumed>) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] <... close resumed>) = 0 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] <... openat resumed>) = 3 [pid 5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5099] sendfile(4, 3, [88] [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached ./strace-static-x86_64: Process 5100 attached [pid 5097] <... sendfile resumed> => [95], 7) = 7 [pid 5096] creat("./file1", 000 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5100 [pid 5101] set_robust_list(0x555555ee9660, 24 [pid 5100] set_robust_list(0x555555ee9660, 24 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5096] <... creat resumed>) = 5 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5101 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] memfd_create("syzkaller", 0 [pid 5096] exit_group(0 [pid 5101] <... prctl resumed>) = 0 [pid 5100] <... prctl resumed>) = 0 [pid 5097] <... memfd_create resumed>) = 5 [pid 5096] <... exit_group resumed>) = ? [pid 5101] setpgid(0, 0 [pid 5100] setpgid(0, 0 [pid 5101] <... setpgid resumed>) = 0 [pid 5100] <... setpgid resumed>) = 0 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5096] +++ exited with 0 +++ [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... mmap resumed>) = 0x7ff7eb000000 [pid 5100] <... openat resumed>) = 3 [pid 5100] write(3, "1000", 4 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5100] <... write resumed>) = 4 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5100] close(3 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] <... close resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5100] sendfile(4, 3, [88] [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5101] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5102 attached [ 60.502854][ T5097] syz-executor400 (5097): drop_caches: 1 [pid 5101] write(3, "1000", 4 [pid 5102] set_robust_list(0x555555ee9660, 24) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5102 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] <... write resumed>) = 4 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5101] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [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 5101] <... openat resumed>) = 3 [pid 5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] <... openat resumed>) = 4 [pid 5102] sendfile(4, 3, [88] [pid 5101] <... openat resumed>) = 4 [pid 5101] sendfile(4, 3, [88] [pid 5097] <... write resumed>) = 2097152 [pid 5097] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5097] close(5 [pid 5098] <... sendfile resumed> => [95], 7) = 7 [pid 5098] memfd_create("syzkaller", 0) = 5 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5097] <... close resumed>) = 0 [ 60.684638][ T5098] syz-executor400 (5098): drop_caches: 1 [pid 5097] creat("./file1", 000) = 5 [pid 5100] <... sendfile resumed> => [95], 7) = 7 [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 5097] exit_group(0) = ? [pid 5097] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5100] memfd_create("syzkaller", 0) = 5 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5100] <... mmap resumed>) = 0x7ff7eb000000 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5103 attached [pid 5103] set_robust_list(0x555555ee9660, 24) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5103 [pid 5103] <... prctl resumed>) = 0 [pid 5103] setpgid(0, 0 [pid 5099] <... sendfile resumed> => [95], 7) = 7 [pid 5099] memfd_create("syzkaller", 0 [pid 5103] <... setpgid resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] <... memfd_create resumed>) = 5 [pid 5103] write(3, "1000", 4 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5103] <... write resumed>) = 4 [pid 5099] <... mmap resumed>) = 0x7ff7eb000000 [ 60.742474][ T5100] syz-executor400 (5100): drop_caches: 1 [ 60.782105][ T5099] syz-executor400 (5099): drop_caches: 1 [pid 5103] close(3 [pid 5101] <... sendfile resumed> => [95], 7) = 7 [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 5101] memfd_create("syzkaller", 0 [pid 5103] <... close resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5101] <... memfd_create resumed>) = 5 [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 5098] <... write resumed>) = 2097152 [pid 5103] <... openat resumed>) = 3 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] <... sendfile resumed> => [95], 7) = 7 [pid 5103] <... openat resumed>) = 4 [pid 5100] <... write resumed>) = 2097152 [pid 5103] sendfile(4, 3, [88] [pid 5098] munmap(0x7ff7eb000000, 138412032 [pid 5102] memfd_create("syzkaller", 0 [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 5100] munmap(0x7ff7eb000000, 138412032 [pid 5099] <... write resumed>) = 2097152 [pid 5098] <... munmap resumed>) = 0 [pid 5102] <... memfd_create resumed>) = 5 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] <... munmap resumed>) = 0 [pid 5099] munmap(0x7ff7eb000000, 138412032 [pid 5102] <... mmap resumed>) = 0x7ff7eb000000 [ 60.828238][ T5101] syz-executor400 (5101): drop_caches: 1 [ 60.849381][ T5102] syz-executor400 (5102): drop_caches: 1 [pid 5098] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5099] <... munmap resumed>) = 0 [pid 5098] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] close(5 [pid 5100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] close(5 [pid 5099] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] <... write resumed>) = 2097152 [pid 5099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] munmap(0x7ff7eb000000, 138412032 [pid 5099] close(5 [pid 5098] <... close resumed>) = 0 [pid 5098] creat("./file1", 000 [pid 5101] <... munmap resumed>) = 0 [pid 5098] <... creat resumed>) = 5 [pid 5100] <... close resumed>) = 0 [pid 5098] exit_group(0) = ? [pid 5100] creat("./file1", 000) = 5 [pid 5100] exit_group(0) = ? [pid 5101] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5101] close(5 [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 [pid 5100] +++ exited with 0 +++ [pid 5098] +++ exited with 0 +++ [pid 5099] <... close resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5099] creat("./file1", 000 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached , child_tidptr=0x555555ee9650) = 5104 [pid 5099] <... creat resumed>) = 5 [pid 5099] exit_group(0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] set_robust_list(0x555555ee9660, 24 [pid 5099] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5105 attached [pid 5104] <... set_robust_list resumed>) = 0 [pid 5099] +++ exited with 0 +++ [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5105 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] set_robust_list(0x555555ee9660, 24 [pid 5104] <... prctl resumed>) = 0 [pid 5101] <... close resumed>) = 0 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5106 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5105] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5106 attached [pid 5106] set_robust_list(0x555555ee9660, 24 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5104] setpgid(0, 0 [pid 5101] creat("./file1", 000 [pid 5104] <... setpgid resumed>) = 0 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] <... creat resumed>) = 5 [pid 5106] <... prctl resumed>) = 0 [pid 5106] setpgid(0, 0 [pid 5105] <... openat resumed>) = 3 [pid 5104] <... openat resumed>) = 3 [pid 5101] exit_group(0 [pid 5106] <... setpgid resumed>) = 0 [pid 5101] <... exit_group resumed>) = ? [pid 5104] write(3, "1000", 4 [pid 5105] write(3, "1000", 4 [pid 5104] <... write resumed>) = 4 [pid 5101] +++ exited with 0 +++ [pid 5104] close(3 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5104] <... close resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] <... write resumed>) = 4 [pid 5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] <... write resumed>) = 2097152 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] <... openat resumed>) = 3 [pid 5105] close(3 [pid 5104] <... openat resumed>) = 4 [pid 5102] munmap(0x7ff7eb000000, 138412032 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5106] write(3, "1000", 4 [pid 5105] <... close resumed>) = 0 [pid 5104] sendfile(4, 3, [88]./strace-static-x86_64: Process 5107 attached [pid 5106] <... write resumed>) = 4 [pid 5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5107 [pid 5106] close(3 [pid 5107] set_robust_list(0x555555ee9660, 24 [pid 5106] <... close resumed>) = 0 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5105] <... openat resumed>) = 3 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] <... openat resumed>) = 3 [pid 5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5106] sendfile(4, 3, [88] [pid 5107] <... prctl resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] <... munmap resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5102] close(5 [pid 5105] <... openat resumed>) = 4 [pid 5107] setpgid(0, 0) = 0 [pid 5105] sendfile(4, 3, [88] [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 [pid 5102] <... close resumed>) = 0 [pid 5107] <... openat resumed>) = 3 [pid 5102] creat("./file1", 000) = 5 [pid 5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5107] sendfile(4, 3, [88] [pid 5102] exit_group(0) = ? [pid 5102] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5103] <... sendfile resumed> => [95], 7) = 7 ./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5108 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0 [pid 5103] memfd_create("syzkaller", 0) = 5 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5108] <... setpgid resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 61.110828][ T5103] syz-executor400 (5103): drop_caches: 1 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5108] sendfile(4, 3, [88] [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) = 2097152 [pid 5103] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5103] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5103] close(5 [pid 5105] <... sendfile resumed> => [95], 7) = 7 [pid 5103] <... close resumed>) = 0 [pid 5103] creat("./file1", 000) = 5 [pid 5103] exit_group(0) = ? [pid 5106] <... sendfile resumed> => [95], 7) = 7 [ 61.338658][ T5105] syz-executor400 (5105): drop_caches: 1 [ 61.377369][ T5106] syz-executor400 (5106): drop_caches: 1 [ 61.378537][ T5104] syz-executor400 (5104): drop_caches: 1 [pid 5105] memfd_create("syzkaller", 0 [pid 5103] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5107] <... sendfile resumed> => [95], 7) = 7 [pid 5106] memfd_create("syzkaller", 0 [pid 5105] <... memfd_create resumed>) = 5 [pid 5104] <... sendfile resumed> => [95], 7) = 7 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] <... mmap resumed>) = 0x7ff7eb000000 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached [pid 5107] memfd_create("syzkaller", 0 [pid 5106] <... memfd_create resumed>) = 5 [pid 5109] set_robust_list(0x555555ee9660, 24 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5109 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] <... memfd_create resumed>) = 5 [pid 5106] <... mmap resumed>) = 0x7ff7eb000000 [pid 5104] memfd_create("syzkaller", 0 [pid 5109] <... prctl resumed>) = 0 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] <... memfd_create resumed>) = 5 [pid 5109] setpgid(0, 0) = 0 [pid 5107] <... mmap resumed>) = 0x7ff7eb000000 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5109] <... openat resumed>) = 3 [pid 5109] write(3, "1000", 4 [pid 5104] <... mmap resumed>) = 0x7ff7eb000000 [pid 5109] <... write resumed>) = 4 [pid 5109] close(3) = 0 [pid 5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 61.401076][ T5107] syz-executor400 (5107): drop_caches: 1 [pid 5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5109] sendfile(4, 3, [88] [pid 5108] <... sendfile resumed> => [95], 7) = 7 [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 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 [ 61.443269][ T5108] syz-executor400 (5108): drop_caches: 1 [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 5108] memfd_create("syzkaller", 0 [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 5108] <... memfd_create resumed>) = 5 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5105] <... write resumed>) = 2097152 [pid 5105] munmap(0x7ff7eb000000, 138412032) = 0 [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 [pid 5107] <... write resumed>) = 2097152 [pid 5106] <... write resumed>) = 2097152 [pid 5105] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5104] <... write resumed>) = 2097152 [pid 5104] munmap(0x7ff7eb000000, 138412032 [pid 5106] munmap(0x7ff7eb000000, 138412032 [pid 5108] <... write resumed>) = 2097152 [pid 5107] munmap(0x7ff7eb000000, 138412032 [pid 5105] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] <... munmap resumed>) = 0 [pid 5108] munmap(0x7ff7eb000000, 138412032 [pid 5107] <... munmap resumed>) = 0 [pid 5105] close(5 [pid 5108] <... munmap resumed>) = 0 [pid 5106] <... munmap resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5106] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5104] close(5 [pid 5106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] close(5 [pid 5107] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5107] close(5 [pid 5108] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5104] <... close resumed>) = 0 [pid 5109] <... sendfile resumed> => [95], 7) = 7 [pid 5108] close(5 [pid 5107] <... close resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5105] <... close resumed>) = 0 [pid 5104] creat("./file1", 000 [pid 5109] memfd_create("syzkaller", 0 [pid 5107] creat("./file1", 000 [pid 5105] creat("./file1", 000 [pid 5109] <... memfd_create resumed>) = 5 [pid 5105] <... creat resumed>) = 5 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] exit_group(0 [pid 5107] <... creat resumed>) = 5 [pid 5105] <... exit_group resumed>) = ? [pid 5107] exit_group(0 [pid 5109] <... mmap resumed>) = 0x7ff7eb000000 [pid 5104] <... creat resumed>) = 5 [pid 5108] <... close resumed>) = 0 [pid 5107] <... exit_group resumed>) = ? [pid 5106] creat("./file1", 000 [pid 5105] +++ exited with 0 +++ [pid 5104] exit_group(0) = ? [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 5104] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5108] creat("./file1", 000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5106] <... creat resumed>) = 5 [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5107] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5065] <... restart_syscall resumed>) = 0 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] <... creat resumed>) = 5 [pid 5106] exit_group(0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5110 attached [pid 5108] exit_group(0 [pid 5106] <... exit_group resumed>) = ? [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5110] set_robust_list(0x555555ee9660, 24 [pid 5108] <... exit_group resumed>) = ? [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached [pid 5110] <... set_robust_list resumed>) = 0 [pid 5108] +++ exited with 0 +++ [pid 5106] +++ exited with 0 +++ [ 61.620868][ T5109] syz-executor400 (5109): drop_caches: 1 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5110 [pid 5111] set_robust_list(0x555555ee9660, 24 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] <... prctl resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5111 ./strace-static-x86_64: Process 5112 attached [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] setpgid(0, 0 [pid 5112] set_robust_list(0x555555ee9660, 24 [pid 5111] <... prctl resumed>) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5112 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5111] setpgid(0, 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] <... setpgid resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5113 attached ./strace-static-x86_64: Process 5114 attached [pid 5112] <... prctl resumed>) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5110] write(3, "1000", 4 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5114 [pid 5114] set_robust_list(0x555555ee9660, 24 [pid 5112] setpgid(0, 0 [pid 5110] <... write resumed>) = 4 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] set_robust_list(0x555555ee9660, 24 [pid 5112] <... setpgid resumed>) = 0 [pid 5111] write(3, "1000", 4 [pid 5110] close(3 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] <... set_robust_list resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] <... write resumed>) = 4 [pid 5110] <... close resumed>) = 0 [pid 5109] <... write resumed>) = 2097152 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5113 [pid 5114] <... prctl resumed>) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... openat resumed>) = 3 [pid 5111] close(3 [pid 5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5109] munmap(0x7ff7eb000000, 138412032 [pid 5113] <... prctl resumed>) = 0 [pid 5111] <... close resumed>) = 0 [pid 5110] <... openat resumed>) = 3 [pid 5113] setpgid(0, 0 [pid 5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5113] <... setpgid resumed>) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] setpgid(0, 0 [pid 5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] <... setpgid resumed>) = 0 [pid 5112] write(3, "1000", 4 [pid 5110] sendfile(4, 3, [88] [pid 5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... openat resumed>) = 3 [pid 5112] <... write resumed>) = 4 [pid 5109] <... munmap resumed>) = 0 [pid 5114] <... openat resumed>) = 3 [pid 5113] write(3, "1000", 4 [pid 5112] close(3 [pid 5111] <... openat resumed>) = 4 [pid 5109] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5114] write(3, "1000", 4 [pid 5113] <... write resumed>) = 4 [pid 5112] <... close resumed>) = 0 [pid 5111] sendfile(4, 3, [88] [pid 5109] close(5 [pid 5113] close(3 [pid 5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5114] <... write resumed>) = 4 [pid 5113] <... close resumed>) = 0 [pid 5114] close(3 [pid 5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5114] <... close resumed>) = 0 [pid 5113] <... openat resumed>) = 3 [pid 5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5112] <... openat resumed>) = 3 [pid 5113] <... openat resumed>) = 4 [pid 5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5112] sendfile(4, 3, [88] [pid 5114] <... openat resumed>) = 3 [pid 5113] sendfile(4, 3, [88] [pid 5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] sendfile(4, 3, [88] [pid 5109] <... close resumed>) = 0 [pid 5109] creat("./file1", 000) = 5 [pid 5109] exit_group(0) = ? [pid 5109] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5115 ./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x555555ee9660, 24) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5115] setpgid(0, 0) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... sendfile resumed> => [95], 7) = 7 [pid 5110] memfd_create("syzkaller", 0 [pid 5115] <... openat resumed>) = 3 [pid 5110] <... memfd_create resumed>) = 5 [pid 5115] write(3, "1000", 4 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5115] <... write resumed>) = 4 [pid 5110] <... mmap resumed>) = 0x7ff7eb000000 [ 61.831458][ T5110] syz-executor400 (5110): drop_caches: 1 [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, [88] [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) = 2097152 [pid 5110] munmap(0x7ff7eb000000, 138412032 [pid 5111] <... sendfile resumed> => [95], 7) = 7 [pid 5111] memfd_create("syzkaller", 0 [pid 5110] <... munmap resumed>) = 0 [pid 5111] <... memfd_create resumed>) = 5 [pid 5113] <... sendfile resumed> => [95], 7) = 7 [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5112] <... sendfile resumed> => [95], 7) = 7 [pid 5110] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 61.998321][ T5111] syz-executor400 (5111): drop_caches: 1 [ 62.016003][ T5113] syz-executor400 (5113): drop_caches: 1 [ 62.017296][ T5112] syz-executor400 (5112): drop_caches: 1 [pid 5113] memfd_create("syzkaller", 0 [pid 5112] memfd_create("syzkaller", 0 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5110] close(5 [pid 5111] <... mmap resumed>) = 0x7ff7eb000000 [pid 5113] <... memfd_create resumed>) = 5 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5112] <... memfd_create resumed>) = 5 [pid 5113] <... mmap resumed>) = 0x7ff7eb000000 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5114] <... sendfile resumed> => [95], 7) = 7 [ 62.044246][ T5114] syz-executor400 (5114): drop_caches: 1 [pid 5114] memfd_create("syzkaller", 0 [pid 5110] <... close resumed>) = 0 [pid 5110] creat("./file1", 000 [pid 5114] <... memfd_create resumed>) = 5 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5110] <... creat resumed>) = 5 [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 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 5110] exit_group(0) = ? [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 [pid 5111] <... write resumed>) = 2097152 [pid 5110] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5115] <... sendfile resumed> => [95], 7) = 7 [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 5111] munmap(0x7ff7eb000000, 138412032 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5116 attached , child_tidptr=0x555555ee9650) = 5116 [pid 5116] set_robust_list(0x555555ee9660, 24) = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5115] memfd_create("syzkaller", 0) = 5 [pid 5116] <... openat resumed>) = 4 [pid 5116] sendfile(4, 3, [88] [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5111] <... munmap resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5113] <... write resumed>) = 2097152 [ 62.147011][ T5115] syz-executor400 (5115): drop_caches: 1 [pid 5111] close(5 [pid 5112] <... write resumed>) = 2097152 [pid 5113] munmap(0x7ff7eb000000, 138412032 [pid 5112] munmap(0x7ff7eb000000, 138412032 [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 5113] <... munmap resumed>) = 0 [pid 5112] <... munmap resumed>) = 0 [pid 5114] <... write resumed>) = 2097152 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5114] munmap(0x7ff7eb000000, 138412032 [pid 5113] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5112] close(5 [pid 5111] <... close resumed>) = 0 [pid 5113] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] close(5 [pid 5114] <... munmap resumed>) = 0 [pid 5111] creat("./file1", 000) = 5 [pid 5111] exit_group(0) = ? [pid 5111] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached [pid 5115] <... write resumed>) = 2097152 [pid 5114] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5113] <... close resumed>) = 0 [pid 5112] <... close resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5117 [pid 5117] set_robust_list(0x555555ee9660, 24 [pid 5114] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] <... set_robust_list resumed>) = 0 [pid 5114] close(5 [pid 5113] creat("./file1", 000 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] <... creat resumed>) = 5 [pid 5117] <... prctl resumed>) = 0 [pid 5113] exit_group(0 [pid 5115] munmap(0x7ff7eb000000, 138412032 [pid 5113] <... exit_group resumed>) = ? [pid 5112] creat("./file1", 000 [pid 5117] setpgid(0, 0 [pid 5115] <... munmap resumed>) = 0 [pid 5117] <... setpgid resumed>) = 0 [pid 5114] <... close resumed>) = 0 [pid 5113] +++ exited with 0 +++ [pid 5112] <... creat resumed>) = 5 [pid 5115] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5117] <... openat resumed>) = 3 [pid 5115] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] creat("./file1", 000 [pid 5112] exit_group(0 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] write(3, "1000", 4 [pid 5115] close(5 [pid 5114] <... creat resumed>) = 5 [pid 5112] <... exit_group resumed>) = ? [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] <... write resumed>) = 4 ./strace-static-x86_64: Process 5118 attached [pid 5118] set_robust_list(0x555555ee9660, 24 [pid 5114] exit_group(0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5118 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5114] <... exit_group resumed>) = ? [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] +++ exited with 0 +++ [pid 5117] close(3 [pid 5118] <... prctl resumed>) = 0 [pid 5117] <... close resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5118] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5112] +++ exited with 0 +++ [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] <... openat resumed>) = 3 [pid 5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- ./strace-static-x86_64: Process 5119 attached [pid 5118] write(3, "1000", 4 [pid 5117] <... openat resumed>) = 4 [pid 5119] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5119 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] <... write resumed>) = 4 [pid 5117] sendfile(4, 3, [88] [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] close(3) = 0 [pid 5119] <... prctl resumed>) = 0 [pid 5119] setpgid(0, 0 [pid 5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5119] <... setpgid resumed>) = 0 [pid 5118] <... openat resumed>) = 3 [pid 5115] <... close resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5116] <... sendfile resumed> => [95], 7) = 7 [pid 5115] creat("./file1", 000 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] <... openat resumed>) = 3 [pid 5118] <... openat resumed>) = 4 [pid 5115] <... creat resumed>) = 5 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] write(3, "1000", 4 [pid 5118] sendfile(4, 3, [88] [pid 5115] exit_group(0 [pid 5119] <... write resumed>) = 4 [pid 5115] <... exit_group resumed>) = ? [pid 5119] close(3) = 0 [pid 5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5115] +++ exited with 0 +++ [pid 5119] <... openat resumed>) = 3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5119] <... openat resumed>) = 4 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5119] sendfile(4, 3, [88] [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached ./strace-static-x86_64: Process 5120 attached [pid 5116] memfd_create("syzkaller", 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5120 [pid 5121] set_robust_list(0x555555ee9660, 24 [pid 5120] set_robust_list(0x555555ee9660, 24 [pid 5116] <... memfd_create resumed>) = 5 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5121 [pid 5121] <... set_robust_list resumed>) = 0 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] <... mmap resumed>) = 0x7ff7eb000000 [pid 5121] <... prctl resumed>) = 0 [pid 5120] <... prctl resumed>) = 0 [pid 5121] setpgid(0, 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5121] <... setpgid resumed>) = 0 [pid 5120] close(3 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] <... close resumed>) = 0 [pid 5121] <... openat resumed>) = 3 [pid 5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5120] sendfile(4, 3, [88] [pid 5121] write(3, "1000", 4) = 4 [pid 5121] close(3) = 0 [pid 5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 62.358752][ T5116] syz-executor400 (5116): drop_caches: 1 [pid 5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5121] sendfile(4, 3, [88] [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) = 2097152 [pid 5116] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5117] <... sendfile resumed> => [95], 7) = 7 [pid 5116] close(5 [pid 5117] memfd_create("syzkaller", 0 [pid 5116] <... close resumed>) = 0 [ 62.558218][ T5117] syz-executor400 (5117): drop_caches: 1 [pid 5117] <... memfd_create resumed>) = 5 [pid 5116] creat("./file1", 000 [pid 5118] <... sendfile resumed> => [95], 7) = 7 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5116] <... creat resumed>) = 5 [pid 5117] <... mmap resumed>) = 0x7ff7eb000000 [pid 5116] exit_group(0 [pid 5118] memfd_create("syzkaller", 0 [pid 5116] <... exit_group resumed>) = ? [pid 5118] <... memfd_create resumed>) = 5 [ 62.601342][ T5118] syz-executor400 (5118): drop_caches: 1 [ 62.638758][ T5120] syz-executor400 (5120): drop_caches: 1 [pid 5116] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5120] <... sendfile resumed> => [95], 7) = 7 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5118] <... mmap resumed>) = 0x7ff7eb000000 [pid 5120] <... memfd_create resumed>) = 5 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5122 attached [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 5122] set_robust_list(0x555555ee9660, 24 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5122 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] <... sendfile resumed> => [95], 7) = 7 [pid 5122] <... prctl resumed>) = 0 [pid 5122] setpgid(0, 0) = 0 [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 5119] memfd_create("syzkaller", 0 [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 5119] <... memfd_create resumed>) = 5 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] <... sendfile resumed> => [95], 7) = 7 [pid 5121] memfd_create("syzkaller", 0) = 5 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5117] <... write resumed>) = 2097152 [ 62.652239][ T5119] syz-executor400 (5119): drop_caches: 1 [ 62.681142][ T5121] syz-executor400 (5121): drop_caches: 1 [pid 5122] <... openat resumed>) = 3 [pid 5118] <... write resumed>) = 2097152 [pid 5117] munmap(0x7ff7eb000000, 138412032 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5118] munmap(0x7ff7eb000000, 138412032 [pid 5117] <... munmap resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5117] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] sendfile(4, 3, [88] [pid 5118] <... munmap resumed>) = 0 [pid 5120] <... write resumed>) = 2097152 [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] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5117] close(5 [pid 5118] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5117] <... close resumed>) = 0 [pid 5118] close(5 [pid 5117] creat("./file1", 000 [pid 5118] <... close resumed>) = 0 [pid 5117] <... creat resumed>) = 5 [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 5118] creat("./file1", 000 [pid 5117] exit_group(0 [pid 5120] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5118] <... creat resumed>) = 5 [pid 5117] <... exit_group resumed>) = ? [pid 5117] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5118] exit_group(0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] <... exit_group resumed>) = ? [pid 5118] +++ exited with 0 +++ [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5123 [pid 5120] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 62.776839][ T60] [ 62.779218][ T60] ====================================================== [ 62.786243][ T60] WARNING: possible circular locking dependency detected [ 62.793255][ T60] 6.8.0-rc2-syzkaller #0 Not tainted [ 62.798543][ T60] ------------------------------------------------------ [ 62.805745][ T60] kworker/u4:4/60 is trying to acquire lock: [ 62.811749][ T60] ffff88807ce40940 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1a98/0x2430 [ 62.820704][ T60] [pid 5120] close(5) = 0 [pid 5119] <... write resumed>) = 2097152 [pid 5120] creat("./file1", 000 [pid 5119] munmap(0x7ff7eb000000, 138412032 [pid 5120] <... creat resumed>) = 5 [pid 5120] exit_group(0) = ? [pid 5120] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5124 ./strace-static-x86_64: Process 5124 attached [pid 5124] set_robust_list(0x555555ee9660, 24 [pid 5119] <... munmap resumed>) = 0 [pid 5124] <... set_robust_list resumed>) = 0 [ 62.820704][ T60] but task is already holding lock: [ 62.828071][ T60] ffff88807cea9210 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 62.837092][ T60] [ 62.837092][ T60] which lock already depends on the new lock. [ 62.837092][ T60] [ 62.847526][ T60] [ 62.847526][ T60] the existing dependency chain (in reverse order) is: [ 62.856570][ T60] [ 62.856570][ T60] -> #1 (&ni->mrec_lock){+.+.}-{3:3}: [ 62.864184][ T60] __mutex_lock+0x175/0x9d0 [ 62.869239][ T60] map_mft_record+0x4a/0x730 [ 62.874368][ T60] ntfs_truncate+0x263/0x2a20 [ 62.879582][ T60] ntfs_setattr+0x44d/0x640 [ 62.884618][ T60] notify_change+0x742/0x11c0 [ 62.889830][ T60] do_truncate+0x15c/0x220 [ 62.894795][ T60] path_openat+0x24b6/0x2990 [ 62.899925][ T60] do_filp_open+0x1de/0x430 [ 62.904956][ T60] do_sys_openat2+0x176/0x1e0 [ 62.910177][ T60] __x64_sys_creat+0xcd/0x120 [ 62.915394][ T60] do_syscall_64+0xd3/0x250 [ 62.920449][ T60] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 62.926894][ T60] [ 62.926894][ T60] -> #0 (&rl->lock){++++}-{3:3}: [ 62.934050][ T60] __lock_acquire+0x2445/0x3b30 [ 62.939620][ T60] lock_acquire+0x1ae/0x520 [ 62.944698][ T60] down_read+0x9a/0x330 [ 62.949397][ T60] ntfs_read_folio+0x1a98/0x2430 [ 62.954883][ T60] filemap_read_folio+0xe9/0x2c0 [ 62.960401][ T60] do_read_cache_folio+0x205/0x540 [ 62.966100][ T60] read_cache_page+0x5b/0x160 [ 62.971351][ T60] ntfs_sync_mft_mirror+0x242/0x1ed0 [ 62.977211][ T60] write_mft_record_nolock+0x1977/0x1da0 [ 62.983451][ T60] write_mft_record+0x14b/0x380 [ 62.988878][ T60] __ntfs_write_inode+0x91b/0xc30 [ 62.994497][ T60] __writeback_single_inode+0xa91/0xe90 [ 63.000636][ T60] writeback_sb_inodes+0x599/0x1080 [ 63.006440][ T60] __writeback_inodes_wb+0xff/0x2d0 [ 63.012206][ T60] wb_writeback+0x7f8/0xaa0 [ 63.017282][ T60] wb_workfn+0x87c/0xfe0 [ 63.022109][ T60] process_one_work+0x886/0x15d0 [ 63.027633][ T60] worker_thread+0x8b9/0x1290 [ 63.032891][ T60] kthread+0x2c6/0x3a0 [ 63.037547][ T60] ret_from_fork+0x45/0x80 [ 63.042555][ T60] ret_from_fork_asm+0x11/0x20 [ 63.047916][ T60] [ 63.047916][ T60] other info that might help us debug this: [ 63.047916][ T60] [ 63.058450][ T60] Possible unsafe locking scenario: [ 63.058450][ T60] [ 63.065941][ T60] CPU0 CPU1 [ 63.071315][ T60] ---- ---- [ 63.072542][ T5122] syz-executor400 (5122): drop_caches: 1 [ 63.076666][ T60] lock(&ni->mrec_lock); [ 63.076681][ T60] lock(&rl->lock); [ 63.076691][ T60] lock(&ni->mrec_lock); [ 63.076702][ T60] rlock(&rl->lock); [ 63.076711][ T60] [ 63.076711][ T60] *** DEADLOCK *** [ 63.076711][ T60] [ 63.076714][ T60] 4 locks held by kworker/u4:4/60: [ 63.076724][ T60] #0: ffff888016aae538 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 [ 63.127912][ T60] #1: ffffc900015b7d80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 [ 63.139804][ T60] #2: ffff8880221fc0e0 (&type->s_umount_key#63){.+.+}-{3:3}, at: super_trylock_shared+0x1e/0xf0 [ 63.150337][ T60] #3: ffff88807cea9210 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 [ 63.159786][ T60] [ 63.159786][ T60] stack backtrace: [ 63.165698][ T60] CPU: 1 PID: 60 Comm: kworker/u4:4 Not tainted 6.8.0-rc2-syzkaller #0 [ 63.173944][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 63.184013][ T60] Workqueue: writeback wb_workfn (flush-7:2) [ 63.190018][ T60] Call Trace: [ 63.193288][ T60] [ 63.196207][ T60] dump_stack_lvl+0xd9/0x1b0 [ 63.200800][ T60] check_noncircular+0x317/0x400 [ 63.205744][ T60] ? print_circular_bug+0x5c0/0x5c0 [ 63.210944][ T60] ? lockdep_lock+0xc6/0x200 [ 63.215527][ T60] ? print_bfs_bug+0x30/0x30 [ 63.220114][ T60] __lock_acquire+0x2445/0x3b30 [ 63.224960][ T60] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 63.230938][ T60] lock_acquire+0x1ae/0x520 [ 63.235433][ T60] ? ntfs_read_folio+0x1a98/0x2430 [ 63.240544][ T60] ? lock_sync+0x190/0x190 [ 63.244948][ T60] ? find_held_lock+0x2d/0x110 [ 63.249703][ T60] ? preempt_count_sub+0x160/0x160 [ 63.254809][ T60] down_read+0x9a/0x330 [ 63.258960][ T60] ? ntfs_read_folio+0x1a98/0x2430 [ 63.264067][ T60] ? rwsem_down_read_slowpath+0xb20/0xb20 [ 63.269784][ T60] ? mark_held_locks+0x9f/0xe0 [ 63.274555][ T60] ? _raw_read_unlock_irqrestore+0x4e/0x70 [ 63.280357][ T60] ntfs_read_folio+0x1a98/0x2430 [ 63.285294][ T60] ? __print_lock_name+0x250/0x260 [ 63.290403][ T60] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 63.296467][ T60] ? folio_add_lru+0x451/0x7f0 [ 63.301223][ T60] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 63.307282][ T60] filemap_read_folio+0xe9/0x2c0 [ 63.312213][ T60] ? __folio_lock_killable+0x20/0x20 [ 63.317487][ T60] ? __filemap_get_folio+0x2b0/0xaa0 [ 63.322765][ T60] do_read_cache_folio+0x205/0x540 [ 63.327872][ T60] ? ntfs_end_buffer_async_read+0x18e0/0x18e0 [ 63.333934][ T60] read_cache_page+0x5b/0x160 [ 63.338602][ T60] ntfs_sync_mft_mirror+0x242/0x1ed0 [ 63.343896][ T60] ? should_fail_request+0x80/0x80 [ 63.349012][ T60] ? preempt_count_sub+0x160/0x160 [ 63.354116][ T60] ? ntfs_mft_bitmap_extend_allocation_nolock+0x1f10/0x1f10 [ 63.361403][ T60] write_mft_record_nolock+0x1977/0x1da0 [ 63.367038][ T60] ? ntfs_sync_mft_mirror+0x1ed0/0x1ed0 [ 63.372583][ T60] ? preempt_count_sub+0x160/0x160 [ 63.377687][ T60] ? __ntfs_write_inode+0x4fd/0xc30 [ 63.382879][ T60] ? __kasan_slab_free+0x12c/0x1b0 [ 63.387981][ T60] write_mft_record+0x14b/0x380 [ 63.392834][ T60] __ntfs_write_inode+0x91b/0xc30 [ 63.397854][ T60] __writeback_single_inode+0xa91/0xe90 [ 63.403401][ T60] ? __mark_inode_dirty+0xd60/0xd60 [ 63.408589][ T60] ? _raw_spin_unlock+0x28/0x40 [ 63.413432][ T60] ? wbc_attach_and_unlock_inode+0x561/0x910 [ 63.419406][ T60] writeback_sb_inodes+0x599/0x1080 [ 63.424600][ T60] ? sync_inode_metadata+0xe0/0xe0 [ 63.429713][ T60] ? find_held_lock+0x59/0x110 [ 63.434479][ T60] ? move_expired_inodes+0x59e/0x850 [ 63.439768][ T60] __writeback_inodes_wb+0xff/0x2d0 [ 63.444967][ T60] ? writeback_sb_inodes+0x1080/0x1080 [ 63.450416][ T60] ? queue_io+0x3ed/0x4e0 [ 63.454735][ T60] wb_writeback+0x7f8/0xaa0 [ 63.459237][ T60] ? __writeback_inodes_wb+0x2d0/0x2d0 [ 63.464687][ T60] ? get_nr_dirty_inodes+0x176/0x1e0 [ 63.469963][ T60] wb_workfn+0x87c/0xfe0 [ 63.474195][ T60] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 63.480166][ T60] ? inode_wait_for_writeback+0x30/0x30 [ 63.485709][ T60] ? lock_sync+0x190/0x190 [ 63.490111][ T60] ? lock_sync+0x190/0x190 [ 63.494519][ T60] process_one_work+0x886/0x15d0 [ 63.499458][ T60] ? lock_sync+0x190/0x190 [ 63.503861][ T60] ? workqueue_congested+0x300/0x300 [ 63.509140][ T60] ? assign_work+0x1a0/0x250 [ 63.513728][ T60] worker_thread+0x8b9/0x1290 [ 63.518400][ T60] ? __kthread_parkme+0x14b/0x220 [ 63.523416][ T60] ? process_one_work+0x15d0/0x15d0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5124] setpgid(0, 0) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4 [pid 5119] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5124] <... write resumed>) = 4 [pid 5124] close(3 [pid 5119] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] <... close resumed>) = 0 [pid 5119] close(5 [pid 5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5124] sendfile(4, 3, [88] [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5119] <... close resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5125 [pid 5119] creat("./file1", 000) = 5 [pid 5119] exit_group(0) = ? [pid 5119] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached [pid 5126] set_robust_list(0x555555ee9660, 24) = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5126] setpgid(0, 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5126 [pid 5126] <... setpgid resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3) = 0 [pid 5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5126] sendfile(4, 3, [88] [pid 5121] <... write resumed>) = 2097152 [pid 5121] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5121] close(5) = 0 [pid 5121] creat("./file1", 000 [pid 5122] <... sendfile resumed> => [95], 7) = 7 [pid 5121] <... creat resumed>) = 5 [pid 5122] memfd_create("syzkaller", 0 [pid 5121] exit_group(0) = ? [pid 5122] <... memfd_create resumed>) = 5 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5121] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5127 attached , child_tidptr=0x555555ee9650) = 5127 [pid 5127] set_robust_list(0x555555ee9660, 24) = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3) = 0 [pid 5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5127] sendfile(4, 3, [88] [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./strace-static-x86_64: Process 5125 attached ./strace-static-x86_64: Process 5123 attached [pid 5125] set_robust_list(0x555555ee9660, 24) = 0 [pid 5123] set_robust_list(0x555555ee9660, 24 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] <... set_robust_list resumed>) = 0 [pid 5125] <... prctl resumed>) = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] setpgid(0, 0 [pid 5123] <... prctl resumed>) = 0 [pid 5125] <... setpgid resumed>) = 0 [pid 5123] setpgid(0, 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] <... setpgid resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... openat resumed>) = 3 [pid 5125] write(3, "1000", 4 [pid 5123] <... openat resumed>) = 3 [pid 5125] <... write resumed>) = 4 [pid 5125] close(3) = 0 [pid 5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5123] write(3, "1000", 4 [pid 5125] <... openat resumed>) = 3 [pid 5123] <... write resumed>) = 4 [pid 5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5123] close(3 [pid 5125] <... openat resumed>) = 4 [pid 5123] <... close resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5125] sendfile(4, 3, [88] [pid 5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5123] sendfile(4, 3, [88] [pid 5122] <... write resumed>) = 2097152 [pid 5122] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5122] close(5) = 0 [pid 5122] creat("./file1", 000) = 5 [pid 5122] exit_group(0) = ? [pid 5122] +++ exited with 0 +++ [ 63.528609][ T60] kthread+0x2c6/0x3a0 [ 63.532671][ T60] ? _raw_spin_unlock_irq+0x23/0x50 [ 63.537865][ T60] ? kthread_complete_and_exit+0x40/0x40 [ 63.543489][ T60] ret_from_fork+0x45/0x80 [ 63.547898][ T60] ? kthread_complete_and_exit+0x40/0x40 [ 63.553533][ T60] ret_from_fork_asm+0x11/0x20 [ 63.558304][ T60] [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=52 /* 0.52 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5128 attached , child_tidptr=0x555555ee9650) = 5128 [pid 5128] set_robust_list(0x555555ee9660, 24 [pid 5126] <... sendfile resumed> => [95], 7) = 7 [pid 5128] <... set_robust_list resumed>) = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5128] setpgid(0, 0) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] memfd_create("syzkaller", 0 [pid 5128] write(3, "1000", 4) = 4 [pid 5128] close(3) = 0 [pid 5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5126] <... memfd_create resumed>) = 5 [pid 5128] <... openat resumed>) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5126] <... mmap resumed>) = 0x7ff7eb000000 [ 63.642503][ T5126] syz-executor400 (5126): drop_caches: 1 [pid 5128] <... openat resumed>) = 4 [pid 5128] sendfile(4, 3, [88] [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) = 2097152 [pid 5126] munmap(0x7ff7eb000000, 138412032 [pid 5125] <... sendfile resumed> => [95], 7) = 7 [pid 5126] <... munmap resumed>) = 0 [pid 5125] memfd_create("syzkaller", 0) = 5 [pid 5126] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5126] close(5 [pid 5125] <... mmap resumed>) = 0x7ff7eb000000 [ 63.734243][ T5125] syz-executor400 (5125): drop_caches: 1 [pid 5126] <... close resumed>) = 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 5123] <... sendfile resumed> => [95], 7) = 7 [pid 5127] <... sendfile resumed> => [95], 7) = 7 [pid 5126] creat("./file1", 000 [pid 5127] memfd_create("syzkaller", 0 [pid 5126] <... creat resumed>) = 5 [pid 5123] memfd_create("syzkaller", 0 [pid 5127] <... memfd_create resumed>) = 5 [pid 5123] <... memfd_create resumed>) = 5 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5126] exit_group(0) = ? [pid 5123] <... mmap resumed>) = 0x7ff7eb000000 [pid 5126] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5129 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5129] setpgid(0, 0) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5129] write(3, "1000", 4) = 4 [pid 5129] close(3) = 0 [pid 5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5129] sendfile(4, 3, [88] [pid 5125] <... write resumed>) = 2097152 [ 63.786939][ T5123] syz-executor400 (5123): drop_caches: 1 [ 63.791633][ T5127] syz-executor400 (5127): drop_caches: 1 [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 5125] munmap(0x7ff7eb000000, 138412032 [pid 5124] <... sendfile resumed> => [95], 7) = 7 [pid 5124] memfd_create("syzkaller", 0 [pid 5128] <... sendfile resumed> => [95], 7) = 7 [pid 5127] <... write resumed>) = 2097152 [pid 5125] <... munmap resumed>) = 0 [pid 5124] <... memfd_create resumed>) = 5 [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 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5125] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5127] munmap(0x7ff7eb000000, 138412032 [pid 5128] memfd_create("syzkaller", 0 [pid 5125] <... openat resumed>) = -1 EBUSY (Device or resource busy) [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 5125] close(5 [pid 5128] <... memfd_create resumed>) = 5 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5127] <... munmap resumed>) = 0 [pid 5127] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [ 63.845724][ T5124] syz-executor400 (5124): drop_caches: 1 [ 63.867049][ T5128] syz-executor400 (5128): drop_caches: 1 [pid 5127] close(5 [pid 5125] <... close resumed>) = 0 [pid 5123] <... write resumed>) = 2097152 [pid 5125] creat("./file1", 000) = 5 [pid 5125] exit_group(0 [pid 5123] munmap(0x7ff7eb000000, 138412032 [pid 5125] <... exit_group resumed>) = ? [pid 5125] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5123] <... munmap resumed>) = 0 [pid 5062] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] <... close resumed>) = 0 [pid 5124] <... write resumed>) = 2097152 [pid 5123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5123] close(5 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5127] creat("./file1", 000./strace-static-x86_64: Process 5130 attached [pid 5129] <... sendfile resumed> => [95], 7) = 7 [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 5124] munmap(0x7ff7eb000000, 138412032 [pid 5123] <... close resumed>) = 0 [pid 5130] set_robust_list(0x555555ee9660, 24) = 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5130 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] creat("./file1", 000 [pid 5130] <... prctl resumed>) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... memfd_create resumed>) = 5 [pid 5130] <... openat resumed>) = 3 [pid 5123] <... creat resumed>) = 5 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] <... creat resumed>) = 5 [pid 5130] write(3, "1000", 4 [pid 5129] <... mmap resumed>) = 0x7ff7eb000000 [pid 5127] exit_group(0 [pid 5123] exit_group(0 [pid 5130] <... write resumed>) = 4 [pid 5127] <... exit_group resumed>) = ? [pid 5124] <... munmap resumed>) = 0 [pid 5123] <... exit_group resumed>) = ? [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5127] +++ exited with 0 +++ [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5123] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] close(5 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5130] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5131 attached [pid 5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] set_robust_list(0x555555ee9660, 24 [pid 5130] <... openat resumed>) = 4 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5131 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5130] sendfile(4, 3, [88] [pid 5128] <... write resumed>) = 2097152 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] munmap(0x7ff7eb000000, 138412032 [pid 5131] <... prctl resumed>) = 0 [pid 5128] <... munmap resumed>) = 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./strace-static-x86_64: Process 5132 attached ) = 0 [pid 5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5132] set_robust_list(0x555555ee9660, 24 [pid 5131] <... openat resumed>) = 4 [pid 5128] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5132 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5131] sendfile(4, 3, [88] [pid 5128] close(5 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] <... close resumed>) = 0 [pid 5132] <... prctl resumed>) = 0 [pid 5128] creat("./file1", 000 [pid 5132] setpgid(0, 0 [pid 5128] <... creat resumed>) = 5 [pid 5132] <... setpgid resumed>) = 0 [pid 5128] exit_group(0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5128] <... exit_group resumed>) = ? [pid 5124] <... close resumed>) = 0 [ 63.954804][ T5129] syz-executor400 (5129): drop_caches: 1 [pid 5132] write(3, "1000", 4 [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 5128] +++ exited with 0 +++ [pid 5132] <... write resumed>) = 4 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5132] close(3 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5132] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5133 ./strace-static-x86_64: Process 5133 attached [pid 5132] <... openat resumed>) = 3 [pid 5133] set_robust_list(0x555555ee9660, 24 [pid 5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5133] <... set_robust_list resumed>) = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] <... openat resumed>) = 4 [pid 5133] <... prctl resumed>) = 0 [pid 5132] sendfile(4, 3, [88] [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5133] write(3, "1000", 4) = 4 [pid 5133] close(3) = 0 [pid 5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5133] sendfile(4, 3, [88] [pid 5124] creat("./file1", 000) = 5 [pid 5124] exit_group(0) = ? [pid 5124] +++ exited with 0 +++ [pid 5129] <... write resumed>) = 2097152 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5129] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5134 attached , child_tidptr=0x555555ee9650) = 5134 [pid 5134] set_robust_list(0x555555ee9660, 24) = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5134] setpgid(0, 0 [pid 5129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5134] <... setpgid resumed>) = 0 [pid 5129] close(5 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] write(3, "1000", 4) = 4 [pid 5134] close(3 [pid 5129] <... close resumed>) = 0 [pid 5129] creat("./file1", 000 [pid 5134] <... close resumed>) = 0 [pid 5129] <... creat resumed>) = 5 [pid 5129] exit_group(0) = ? [pid 5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5129] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached [pid 5134] <... openat resumed>) = 3 [pid 5135] set_robust_list(0x555555ee9660, 24 [pid 5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5135 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] <... openat resumed>) = 4 [pid 5135] <... prctl resumed>) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4 [pid 5134] sendfile(4, 3, [88] [pid 5135] <... write resumed>) = 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, [88] [pid 5130] <... sendfile resumed> => [95], 7) = 7 [pid 5132] <... sendfile resumed> => [95], 7) = 7 [pid 5132] memfd_create("syzkaller", 0 [pid 5130] memfd_create("syzkaller", 0 [pid 5132] <... memfd_create resumed>) = 5 [pid 5130] <... memfd_create resumed>) = 5 [ 64.176254][ T5130] syz-executor400 (5130): drop_caches: 1 [ 64.197697][ T5132] syz-executor400 (5132): drop_caches: 1 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5131] <... sendfile resumed> => [95], 7) = 7 [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 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 5133] <... sendfile resumed> => [95], 7) = 7 [pid 5133] memfd_create("syzkaller", 0 [pid 5131] memfd_create("syzkaller", 0) = 5 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5133] <... memfd_create resumed>) = 5 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5130] <... write resumed>) = 2097152 [pid 5133] <... mmap resumed>) = 0x7ff7eb000000 [ 64.236338][ T5133] syz-executor400 (5133): drop_caches: 1 [ 64.247001][ T5131] syz-executor400 (5131): drop_caches: 1 [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 5134] <... sendfile resumed> => [95], 7) = 7 [pid 5130] munmap(0x7ff7eb000000, 138412032 [pid 5134] memfd_create("syzkaller", 0 [pid 5132] <... write resumed>) = 2097152 [pid 5130] <... munmap resumed>) = 0 [pid 5134] <... memfd_create resumed>) = 5 [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 5132] munmap(0x7ff7eb000000, 138412032 [pid 5130] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5135] <... sendfile resumed> => [95], 7) = 7 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] <... munmap resumed>) = 0 [pid 5131] <... write resumed>) = 2097152 [pid 5130] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5134] <... mmap resumed>) = 0x7ff7eb000000 [pid 5133] <... write resumed>) = 2097152 [pid 5132] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5130] close(5 [pid 5135] memfd_create("syzkaller", 0 [pid 5131] munmap(0x7ff7eb000000, 138412032 [pid 5135] <... memfd_create resumed>) = 5 [pid 5133] munmap(0x7ff7eb000000, 138412032 [pid 5132] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... munmap resumed>) = 0 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 64.298475][ T5134] syz-executor400 (5134): drop_caches: 1 [ 64.314032][ T5135] syz-executor400 (5135): drop_caches: 1 [pid 5131] openat(AT_FDCWD, "/dev/loop4", O_RDWR [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] <... munmap resumed>) = 0 [pid 5132] close(5 [pid 5133] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] close(5 [pid 5133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... close resumed>) = 0 [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 5133] close(5 [pid 5130] <... close resumed>) = 0 [pid 5130] creat("./file1", 000) = 5 [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached [pid 5136] set_robust_list(0x555555ee9660, 24 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5136 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5136] setpgid(0, 0) = 0 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "1000", 4) = 4 [pid 5136] close(3) = 0 [pid 5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5131] creat("./file1", 000 [pid 5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5131] <... creat resumed>) = 5 [pid 5136] <... openat resumed>) = 4 [pid 5136] sendfile(4, 3, [88] [pid 5131] exit_group(0 [pid 5135] <... write resumed>) = 2097152 [pid 5134] <... write resumed>) = 2097152 [pid 5133] <... close resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5131] <... exit_group resumed>) = ? [pid 5135] munmap(0x7ff7eb000000, 138412032 [pid 5134] munmap(0x7ff7eb000000, 138412032 [pid 5133] creat("./file1", 000 [pid 5132] creat("./file1", 000 [pid 5131] +++ exited with 0 +++ [pid 5135] <... munmap resumed>) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5134] <... munmap resumed>) = 0 [pid 5133] <... creat resumed>) = 5 [pid 5132] <... creat resumed>) = 5 [pid 5135] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5135] close(5 [pid 5134] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5133] exit_group(0 [pid 5132] exit_group(0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] <... exit_group resumed>) = ? [pid 5132] <... exit_group resumed>) = ? [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5137 attached [pid 5137] set_robust_list(0x555555ee9660, 24) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0 [pid 5132] +++ exited with 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=11 /* 0.11 s */} --- [pid 5134] close(5 [pid 5133] +++ exited with 0 +++ [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5137 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] <... setpgid resumed>) = 0 [pid 5136] <... sendfile resumed> => [95], 7) = 7 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5138 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- ./strace-static-x86_64: Process 5138 attached [pid 5137] <... openat resumed>) = 3 [pid 5136] memfd_create("syzkaller", 0 [pid 5137] write(3, "1000", 4 [pid 5138] set_robust_list(0x555555ee9660, 24 [pid 5137] <... write resumed>) = 4 [pid 5136] <... memfd_create resumed>) = 5 [pid 5138] <... set_robust_list resumed>) = 0 [pid 5137] close(3 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5135] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5137] <... close resumed>) = 0 [pid 5136] <... mmap resumed>) = 0x7ff7eb000000 [pid 5135] creat("./file1", 000 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached [pid 5138] <... prctl resumed>) = 0 [pid 5137] <... openat resumed>) = 3 [pid 5135] <... creat resumed>) = 5 [pid 5139] set_robust_list(0x555555ee9660, 24 [pid 5138] setpgid(0, 0 [pid 5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5134] <... close resumed>) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5134] creat("./file1", 000 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5139 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5138] <... setpgid resumed>) = 0 [pid 5137] <... openat resumed>) = 4 [pid 5135] exit_group(0 [pid 5139] <... prctl resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5137] sendfile(4, 3, [88] [pid 5135] <... exit_group resumed>) = ? [pid 5134] <... creat resumed>) = 5 [pid 5139] setpgid(0, 0) = 0 [pid 5134] exit_group(0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] <... exit_group resumed>) = ? [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5138] <... openat resumed>) = 3 [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 5135] +++ exited with 0 +++ [pid 5134] +++ exited with 0 +++ [pid 5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] write(3, "1000", 4 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5136] <... write resumed>) = 2097152 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5139] <... openat resumed>) = 4 [pid 5138] <... write resumed>) = 4 [ 64.437762][ T5136] syz-executor400 (5136): drop_caches: 1 [pid 5136] munmap(0x7ff7eb000000, 138412032 [pid 5139] sendfile(4, 3, [88] [pid 5138] close(3 [pid 5136] <... munmap resumed>) = 0 [pid 5138] <... close resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5140 ./strace-static-x86_64: Process 5141 attached [pid 5136] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5141 [pid 5141] set_robust_list(0x555555ee9660, 24./strace-static-x86_64: Process 5140 attached ) = 0 [pid 5136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] set_robust_list(0x555555ee9660, 24 [pid 5138] <... openat resumed>) = 3 [pid 5141] <... prctl resumed>) = 0 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5141] setpgid(0, 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5136] close(5 [pid 5141] <... setpgid resumed>) = 0 [pid 5140] <... prctl resumed>) = 0 [pid 5138] <... openat resumed>) = 4 [pid 5140] setpgid(0, 0) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5138] sendfile(4, 3, [88] [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] <... close resumed>) = 0 [pid 5136] creat("./file1", 000) = 5 [pid 5136] exit_group(0) = ? [pid 5136] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5140] <... openat resumed>) = 3 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5141] write(3, "1000", 4 [pid 5140] write(3, "1000", 4 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] <... write resumed>) = 4 [pid 5140] <... write resumed>) = 4 [pid 5137] <... sendfile resumed> => [95], 7) = 7 [pid 5141] close(3 [pid 5140] close(3 [pid 5141] <... close resumed>) = 0 [pid 5140] <... close resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5141] <... openat resumed>) = 3 [pid 5140] <... openat resumed>) = 3 [pid 5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5142 [pid 5141] <... openat resumed>) = 4 [pid 5141] sendfile(4, 3, [88] [pid 5140] <... openat resumed>) = 4 [pid 5140] sendfile(4, 3, [88]./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x555555ee9660, 24) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] setpgid(0, 0) = 0 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5142] write(3, "1000", 4) = 4 [pid 5142] close(3) = 0 [pid 5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5142] sendfile(4, 3, [88] [ 64.534003][ T5137] syz-executor400 (5137): drop_caches: 1 [pid 5137] memfd_create("syzkaller", 0) = 5 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [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) = 2097152 [pid 5137] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5137] close(5 [pid 5139] <... sendfile resumed> => [95], 7) = 7 [pid 5139] memfd_create("syzkaller", 0 [pid 5137] <... close resumed>) = 0 [pid 5139] <... memfd_create resumed>) = 5 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5138] <... sendfile resumed> => [95], 7) = 7 [pid 5137] creat("./file1", 000 [pid 5138] memfd_create("syzkaller", 0 [pid 5137] <... creat resumed>) = 5 [pid 5137] exit_group(0) = ? [pid 5137] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [ 64.716160][ T5139] syz-executor400 (5139): drop_caches: 1 [ 64.752513][ T5138] syz-executor400 (5138): drop_caches: 1 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x555555ee9660, 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 5142] <... sendfile resumed> => [95], 7) = 7 [pid 5138] <... memfd_create resumed>) = 5 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5143 [pid 5143] write(3, "1000", 4 [pid 5142] memfd_create("syzkaller", 0 [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 5138] <... mmap resumed>) = 0x7ff7eb000000 [pid 5142] <... memfd_create resumed>) = 5 [pid 5143] <... write resumed>) = 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, [88] [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5139] <... write resumed>) = 2097152 [pid 5142] <... mmap resumed>) = 0x7ff7eb000000 [pid 5141] <... sendfile resumed> => [95], 7) = 7 [pid 5141] memfd_create("syzkaller", 0) = 5 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 64.769486][ T5142] syz-executor400 (5142): drop_caches: 1 [ 64.781981][ T5141] syz-executor400 (5141): drop_caches: 1 [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] <... sendfile resumed> => [95], 7) = 7 [pid 5139] munmap(0x7ff7eb000000, 138412032) = 0 [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 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5139] close(5 [pid 5140] memfd_create("syzkaller", 0 [pid 5139] <... close resumed>) = 0 [pid 5140] <... memfd_create resumed>) = 5 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [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 5142] <... write resumed>) = 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 5139] creat("./file1", 000 [pid 5138] <... write resumed>) = 2097152 [pid 5142] munmap(0x7ff7eb000000, 138412032 [pid 5138] munmap(0x7ff7eb000000, 138412032 [pid 5142] <... munmap resumed>) = 0 [ 64.827293][ T5140] syz-executor400 (5140): drop_caches: 1 [pid 5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5141] <... write resumed>) = 2097152 [pid 5139] <... creat resumed>) = 5 [pid 5138] <... munmap resumed>) = 0 [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5142] close(5 [pid 5141] munmap(0x7ff7eb000000, 138412032 [pid 5139] exit_group(0 [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] <... exit_group resumed>) = ? [pid 5138] close(5 [pid 5142] <... close resumed>) = 0 [pid 5139] +++ exited with 0 +++ [pid 5141] <... munmap resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5144 [pid 5141] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5141] close(5./strace-static-x86_64: Process 5144 attached [pid 5140] <... write resumed>) = 2097152 [pid 5144] set_robust_list(0x555555ee9660, 24) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] creat("./file1", 000 [pid 5144] setpgid(0, 0 [pid 5140] munmap(0x7ff7eb000000, 138412032 [pid 5144] <... setpgid resumed>) = 0 [pid 5142] <... creat resumed>) = 5 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] exit_group(0 [pid 5140] <... munmap resumed>) = 0 [pid 5144] <... openat resumed>) = 3 [pid 5142] <... exit_group resumed>) = ? [pid 5144] write(3, "1000", 4 [pid 5142] +++ exited with 0 +++ [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5144] <... write resumed>) = 4 [pid 5140] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5144] close(3 [pid 5140] close(5 [pid 5144] <... close resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5145 attached [pid 5144] <... openat resumed>) = 3 [pid 5141] <... close resumed>) = 0 [pid 5138] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] creat("./file1", 000 [pid 5145] set_robust_list(0x555555ee9660, 24 [pid 5144] <... openat resumed>) = 4 [pid 5141] creat("./file1", 000 [pid 5140] <... close resumed>) = 0 [pid 5138] <... creat resumed>) = 5 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5145 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5141] <... creat resumed>) = 5 [pid 5141] exit_group(0) = ? [pid 5144] sendfile(4, 3, [88] [pid 5141] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5140] creat("./file1", 000 [pid 5138] exit_group(0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5138] <... exit_group resumed>) = ? [pid 5145] <... prctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5145] setpgid(0, 0 [pid 5140] <... creat resumed>) = 5 [pid 5138] +++ exited with 0 +++ [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] <... setpgid resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5146 ./strace-static-x86_64: Process 5146 attached [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5146] set_robust_list(0x555555ee9660, 24 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] <... set_robust_list resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] exit_group(0./strace-static-x86_64: Process 5147 attached [pid 5146] <... prctl resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5140] <... exit_group resumed>) = ? [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5147 [pid 5147] set_robust_list(0x555555ee9660, 24 [pid 5146] setpgid(0, 0) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] write(3, "1000", 4 [pid 5147] <... prctl resumed>) = 0 [pid 5146] <... write resumed>) = 4 [pid 5147] setpgid(0, 0 [pid 5146] close(3 [pid 5147] <... setpgid resumed>) = 0 [pid 5146] <... close resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5147] <... openat resumed>) = 3 [pid 5146] <... openat resumed>) = 3 [pid 5147] write(3, "1000", 4 [pid 5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] <... write resumed>) = 4 [pid 5146] <... openat resumed>) = 4 [pid 5147] close(3 [pid 5146] sendfile(4, 3, [88] [pid 5147] <... close resumed>) = 0 [pid 5140] +++ exited with 0 +++ [pid 5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5145] <... openat resumed>) = 3 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5143] <... sendfile resumed> => [95], 7) = 7 [pid 5147] <... openat resumed>) = 3 [pid 5145] write(3, "1000", 4 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5145] <... write resumed>) = 4 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5147] <... openat resumed>) = 4 [pid 5145] close(3 [pid 5143] memfd_create("syzkaller", 0 [pid 5145] <... close resumed>) = 0 [pid 5143] <... memfd_create resumed>) = 5 [pid 5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5147] sendfile(4, 3, [88] [pid 5145] <... openat resumed>) = 3 [pid 5143] <... mmap resumed>) = 0x7ff7eb000000 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached [pid 5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5148] set_robust_list(0x555555ee9660, 24 [pid 5145] sendfile(4, 3, [88] [pid 5148] <... set_robust_list resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5148 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5148] setpgid(0, 0) = 0 [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 [ 64.963491][ T5143] syz-executor400 (5143): drop_caches: 1 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5148] write(3, "1000", 4) = 4 [pid 5148] close(3) = 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, [88] [pid 5143] <... write resumed>) = 2097152 [pid 5143] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5143] close(5 [pid 5144] <... sendfile resumed> => [95], 7) = 7 [pid 5143] <... close resumed>) = 0 [pid 5144] memfd_create("syzkaller", 0 [pid 5143] creat("./file1", 000) = 5 [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5144] <... memfd_create resumed>) = 5 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5144] <... mmap resumed>) = 0x7ff7eb000000 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x555555ee9660, 24) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5149 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 65.125620][ T5144] syz-executor400 (5144): drop_caches: 1 [ 65.151871][ T5146] syz-executor400 (5146): drop_caches: 1 [pid 5149] setpgid(0, 0 [pid 5146] <... sendfile resumed> => [95], 7) = 7 [pid 5149] <... setpgid resumed>) = 0 [pid 5145] <... sendfile resumed> => [95], 7) = 7 [pid 5145] memfd_create("syzkaller", 0 [pid 5146] memfd_create("syzkaller", 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] <... memfd_create resumed>) = 5 [pid 5145] <... memfd_create resumed>) = 5 [pid 5149] <... openat resumed>) = 3 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5149] write(3, "1000", 4 [pid 5147] <... sendfile resumed> => [95], 7) = 7 [pid 5146] <... mmap resumed>) = 0x7ff7eb000000 [pid 5149] <... write resumed>) = 4 [pid 5147] memfd_create("syzkaller", 0 [pid 5145] <... mmap resumed>) = 0x7ff7eb000000 [pid 5149] close(3 [pid 5148] <... sendfile resumed> => [95], 7) = 7 [pid 5147] <... memfd_create resumed>) = 5 [pid 5149] <... close resumed>) = 0 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] 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 5147] <... mmap resumed>) = 0x7ff7eb000000 [pid 5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5148] memfd_create("syzkaller", 0 [pid 5149] sendfile(4, 3, [88] [pid 5148] <... memfd_create resumed>) = 5 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5146] 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 [ 65.179449][ T5145] syz-executor400 (5145): drop_caches: 1 [ 65.180054][ T5147] syz-executor400 (5147): drop_caches: 1 [ 65.215767][ T5148] syz-executor400 (5148): drop_caches: 1 [pid 5145] 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 5147] 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 5144] <... write resumed>) = 2097152 [pid 5145] <... write resumed>) = 2097152 [pid 5148] 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 5146] <... write resumed>) = 2097152 [pid 5144] munmap(0x7ff7eb000000, 138412032 [pid 5146] munmap(0x7ff7eb000000, 138412032 [pid 5144] <... munmap resumed>) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5146] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5145] munmap(0x7ff7eb000000, 138412032 [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] close(5 [pid 5145] <... munmap resumed>) = 0 [pid 5144] close(5 [pid 5146] <... close resumed>) = 0 [pid 5144] <... close resumed>) = 0 [pid 5147] <... write resumed>) = 2097152 [pid 5145] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5144] creat("./file1", 000 [pid 5145] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] close(5 [pid 5144] <... creat resumed>) = 5 [pid 5144] exit_group(0) = ? [pid 5148] <... write resumed>) = 2097152 [pid 5144] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5148] munmap(0x7ff7eb000000, 138412032 [pid 5147] munmap(0x7ff7eb000000, 138412032 [pid 5146] creat("./file1", 000 [pid 5145] <... close resumed>) = 0 [pid 5147] <... munmap resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5147] close(5 [pid 5146] <... creat resumed>) = 5 [pid 5149] <... sendfile resumed> => [95], 7) = 7 [pid 5148] <... munmap resumed>) = 0 [pid 5146] exit_group(0 [pid 5145] creat("./file1", 000 [pid 5149] memfd_create("syzkaller", 0 [pid 5148] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5146] <... exit_group resumed>) = ? [pid 5145] <... creat resumed>) = 5 [pid 5149] <... memfd_create resumed>) = 5 [pid 5148] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] +++ exited with 0 +++ [pid 5145] exit_group(0 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5148] close(5 [pid 5145] <... exit_group resumed>) = ? [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5149] <... mmap resumed>) = 0x7ff7eb000000 [pid 5147] <... close resumed>) = 0 [pid 5145] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5147] creat("./file1", 000 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5147] <... creat resumed>) = 5 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5147] exit_group(0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5150 attached [pid 5147] <... exit_group resumed>) = ? [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5152 attached ./strace-static-x86_64: Process 5151 attached [pid 5150] set_robust_list(0x555555ee9660, 24 [pid 5147] +++ exited with 0 +++ [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5150 [pid 5152] set_robust_list(0x555555ee9660, 24 [pid 5151] set_robust_list(0x555555ee9660, 24 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5152 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5151 [pid 5152] <... set_robust_list resumed>) = 0 [pid 5151] <... set_robust_list resumed>) = 0 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] <... prctl resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5152] <... prctl resumed>) = 0 [pid 5150] setpgid(0, 0 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] setpgid(0, 0 [pid 5151] <... prctl resumed>) = 0 [pid 5150] <... setpgid resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5153 attached [pid 5152] <... setpgid resumed>) = 0 [pid 5151] setpgid(0, 0 [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] set_robust_list(0x555555ee9660, 24 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] <... setpgid resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5153 [pid 5153] <... set_robust_list resumed>) = 0 [pid 5152] <... openat resumed>) = 3 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5152] write(3, "1000", 4 [pid 5153] <... prctl resumed>) = 0 [pid 5152] <... write resumed>) = 4 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5150] write(3, "1000", 4 [pid 5153] setpgid(0, 0 [pid 5152] close(3 [pid 5150] <... write resumed>) = 4 [pid 5153] <... setpgid resumed>) = 0 [pid 5152] <... close resumed>) = 0 [pid 5150] close(3 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5151] <... openat resumed>) = 3 [pid 5150] <... close resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5152] <... openat resumed>) = 3 [pid 5151] write(3, "1000", 4 [pid 5153] write(3, "1000", 4 [pid 5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5151] <... write resumed>) = 4 [pid 5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5153] <... write resumed>) = 4 [pid 5152] <... openat resumed>) = 4 [pid 5150] <... openat resumed>) = 3 [pid 5153] close(3 [pid 5152] sendfile(4, 3, [88] [pid 5153] <... close resumed>) = 0 [pid 5151] close(3 [pid 5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5149] 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 5148] <... close resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5151] <... close resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5150] <... openat resumed>) = 4 [pid 5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5150] sendfile(4, 3, [88] [pid 5153] <... openat resumed>) = 4 [pid 5151] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [ 65.351985][ T5149] syz-executor400 (5149): drop_caches: 1 [pid 5148] creat("./file1", 000 [pid 5151] <... openat resumed>) = 4 [pid 5148] <... creat resumed>) = 5 [pid 5153] sendfile(4, 3, [88] [pid 5148] exit_group(0) = ? [pid 5148] +++ exited with 0 +++ [pid 5151] sendfile(4, 3, [88] [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5154 [pid 5154] <... set_robust_list resumed>) = 0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5154] setpgid(0, 0) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3) = 0 [pid 5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5154] sendfile(4, 3, [88] [pid 5149] <... write resumed>) = 2097152 [pid 5149] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5149] close(5) = 0 [pid 5149] creat("./file1", 000) = 5 [pid 5149] exit_group(0) = ? [pid 5149] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5152] <... sendfile resumed> => [95], 7) = 7 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5155 attached ) = 5 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5155 [pid 5155] set_robust_list(0x555555ee9660, 24 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5155] <... set_robust_list resumed>) = 0 [ 65.574189][ T5152] syz-executor400 (5152): drop_caches: 1 [ 65.599705][ T5150] syz-executor400 (5150): drop_caches: 1 [pid 5150] <... sendfile resumed> => [95], 7) = 7 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] memfd_create("syzkaller", 0) = 5 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5155] <... prctl resumed>) = 0 [pid 5154] <... sendfile resumed> => [95], 7) = 7 [pid 5153] <... sendfile resumed> => [95], 7) = 7 [pid 5152] 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 5151] <... sendfile resumed> => [95], 7) = 7 [pid 5155] setpgid(0, 0 [pid 5153] memfd_create("syzkaller", 0 [pid 5155] <... setpgid resumed>) = 0 [pid 5153] <... memfd_create resumed>) = 5 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5155] write(3, "1000", 4 [pid 5153] <... mmap resumed>) = 0x7ff7eb000000 [pid 5155] <... write resumed>) = 4 [pid 5155] close(3) = 0 [pid 5150] 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 5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5154] memfd_create("syzkaller", 0 [pid 5151] memfd_create("syzkaller", 0 [pid 5155] <... openat resumed>) = 3 [pid 5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5155] sendfile(4, 3, [88] [pid 5152] <... write resumed>) = 2097152 [ 65.622327][ T5153] syz-executor400 (5153): drop_caches: 1 [ 65.623275][ T5151] syz-executor400 (5151): drop_caches: 1 [ 65.641352][ T5154] syz-executor400 (5154): drop_caches: 1 [pid 5152] munmap(0x7ff7eb000000, 138412032 [pid 5154] <... memfd_create resumed>) = 5 [pid 5151] <... memfd_create resumed>) = 5 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5152] <... munmap resumed>) = 0 [pid 5150] <... write resumed>) = 2097152 [pid 5154] <... mmap resumed>) = 0x7ff7eb000000 [pid 5153] 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 5152] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5152] close(5 [pid 5151] 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 5152] <... close resumed>) = 0 [pid 5150] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5152] creat("./file1", 000 [pid 5154] 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 5153] <... write resumed>) = 2097152 [pid 5152] <... creat resumed>) = 5 [pid 5150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] exit_group(0 [pid 5150] close(5 [pid 5152] <... exit_group resumed>) = ? [pid 5153] munmap(0x7ff7eb000000, 138412032 [pid 5152] +++ exited with 0 +++ [pid 5153] <... munmap resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5156 attached [pid 5156] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5156 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] setpgid(0, 0 [pid 5153] close(5 [pid 5156] <... setpgid resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] <... write resumed>) = 2097152 [pid 5151] <... write resumed>) = 2097152 [pid 5150] <... close resumed>) = 0 [pid 5151] munmap(0x7ff7eb000000, 138412032 [pid 5150] creat("./file1", 000 [pid 5156] <... openat resumed>) = 3 [pid 5156] write(3, "1000", 4) = 4 [pid 5156] close(3 [pid 5150] <... creat resumed>) = 5 [pid 5154] munmap(0x7ff7eb000000, 138412032 [pid 5156] <... close resumed>) = 0 [pid 5150] exit_group(0 [pid 5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5151] <... munmap resumed>) = 0 [pid 5150] <... exit_group resumed>) = ? [pid 5156] <... openat resumed>) = 3 [pid 5154] <... munmap resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] <... openat resumed>) = 4 [pid 5151] close(5 [pid 5156] sendfile(4, 3, [88] [pid 5154] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5154] close(5 [pid 5153] <... close resumed>) = 0 [pid 5151] <... close resumed>) = 0 [pid 5153] creat("./file1", 000) = 5 [pid 5153] exit_group(0) = ? [pid 5153] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached [pid 5150] +++ exited with 0 +++ [pid 5157] set_robust_list(0x555555ee9660, 24 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5157] <... set_robust_list resumed>) = 0 [pid 5155] <... sendfile resumed> => [95], 7) = 7 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5157] setpgid(0, 0 [pid 5155] memfd_create("syzkaller", 0 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5157] <... setpgid resumed>) = 0 [pid 5155] <... memfd_create resumed>) = 5 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5158 attached [pid 5157] <... openat resumed>) = 3 [pid 5151] creat("./file1", 000 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5157 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5158 [pid 5155] <... mmap resumed>) = 0x7ff7eb000000 [pid 5158] set_robust_list(0x555555ee9660, 24 [pid 5157] write(3, "1000", 4 [pid 5151] <... creat resumed>) = 5 [pid 5157] <... write resumed>) = 4 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] close(3 [pid 5151] exit_group(0 [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] <... close resumed>) = 0 [pid 5154] <... close resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5158] <... prctl resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5157] sendfile(4, 3, [88] [pid 5158] setpgid(0, 0 [pid 5151] <... exit_group resumed>) = ? [pid 5158] <... setpgid resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] creat("./file1", 000) = 5 [pid 5154] exit_group(0) = ? [pid 5158] <... openat resumed>) = 3 [pid 5151] +++ exited with 0 +++ [pid 5158] write(3, "1000", 4 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5158] <... write resumed>) = 4 [pid 5154] +++ exited with 0 +++ [ 65.796929][ T5155] syz-executor400 (5155): drop_caches: 1 [pid 5158] close(3 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5158] <... close resumed>) = 0 [pid 5155] 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 5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5159 [pid 5158] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5159 attached [pid 5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5159] set_robust_list(0x555555ee9660, 24) = 0 [pid 5158] <... openat resumed>) = 4 [pid 5158] sendfile(4, 3, [88] [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5159] <... prctl resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5159] setpgid(0, 0./strace-static-x86_64: Process 5160 attached ) = 0 [pid 5160] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5160 [pid 5160] <... set_robust_list resumed>) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] <... openat resumed>) = 3 [pid 5160] <... prctl resumed>) = 0 [pid 5160] setpgid(0, 0 [pid 5159] write(3, "1000", 4 [pid 5160] <... setpgid resumed>) = 0 [pid 5159] <... write resumed>) = 4 [pid 5159] close(3 [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] <... close resumed>) = 0 [pid 5160] <... openat resumed>) = 3 [pid 5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5160] write(3, "1000", 4) = 4 [pid 5159] <... openat resumed>) = 3 [pid 5160] close(3 [pid 5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5160] <... close resumed>) = 0 [pid 5160] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5159] <... openat resumed>) = 4 [pid 5160] <... openat resumed>) = 3 [pid 5159] sendfile(4, 3, [88] [pid 5160] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5160] sendfile(4, 3, [88] [pid 5155] <... write resumed>) = 2097152 [pid 5155] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5155] close(5 [pid 5156] <... sendfile resumed> => [95], 7) = 7 [pid 5156] memfd_create("syzkaller", 0) = 5 [pid 5155] <... close resumed>) = 0 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5155] creat("./file1", 000) = 5 [pid 5155] exit_group(0) = ? [pid 5155] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x555555ee9660, 24) = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 65.992374][ T5156] syz-executor400 (5156): drop_caches: 1 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5156] 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 5157] <... sendfile resumed> => [95], 7) = 7 [pid 5161] sendfile(4, 3, [88] [pid 5160] <... sendfile resumed> => [95], 7) = 7 [pid 5159] <... sendfile resumed> => [95], 7) = 7 [pid 5158] <... sendfile resumed> => [95], 7) = 7 [pid 5156] <... write resumed>) = 2097152 [pid 5159] memfd_create("syzkaller", 0) = 5 [pid 5160] memfd_create("syzkaller", 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5157] memfd_create("syzkaller", 0 [pid 5156] munmap(0x7ff7eb000000, 138412032 [pid 5160] <... memfd_create resumed>) = 5 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] <... memfd_create resumed>) = 5 [pid 5157] <... memfd_create resumed>) = 5 [pid 5156] <... munmap resumed>) = 0 [pid 5159] <... mmap resumed>) = 0x7ff7eb000000 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] <... mmap resumed>) = 0x7ff7eb000000 [pid 5158] <... mmap resumed>) = 0x7ff7eb000000 [pid 5157] <... mmap resumed>) = 0x7ff7eb000000 [pid 5156] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 66.072089][ T5160] syz-executor400 (5160): drop_caches: 1 [ 66.072695][ T5158] syz-executor400 (5158): drop_caches: 1 [ 66.078134][ T5157] syz-executor400 (5157): drop_caches: 1 [ 66.092359][ T5159] syz-executor400 (5159): drop_caches: 1 [pid 5156] close(5 [pid 5160] 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 5159] 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 5157] 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 5156] <... close resumed>) = 0 [pid 5156] creat("./file1", 000) = 5 [pid 5156] exit_group(0) = ? [pid 5158] 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 5156] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached , child_tidptr=0x555555ee9650) = 5162 [pid 5162] set_robust_list(0x555555ee9660, 24) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5162] setpgid(0, 0) = 0 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5162] write(3, "1000", 4 [pid 5159] <... write resumed>) = 2097152 [pid 5158] <... write resumed>) = 2097152 [pid 5162] <... write resumed>) = 4 [pid 5162] close(3 [pid 5161] <... sendfile resumed> => [95], 7) = 7 [pid 5159] munmap(0x7ff7eb000000, 138412032 [pid 5162] <... close resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5158] munmap(0x7ff7eb000000, 138412032 [pid 5162] <... openat resumed>) = 3 [pid 5161] memfd_create("syzkaller", 0 [pid 5158] <... munmap resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5161] <... memfd_create resumed>) = 5 [pid 5162] <... openat resumed>) = 4 [pid 5162] sendfile(4, 3, [88] [pid 5158] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] <... write resumed>) = 2097152 [pid 5159] <... munmap resumed>) = 0 [pid 5157] <... write resumed>) = 2097152 [pid 5161] <... mmap resumed>) = 0x7ff7eb000000 [pid 5158] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5160] munmap(0x7ff7eb000000, 138412032 [pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5157] munmap(0x7ff7eb000000, 138412032 [pid 5159] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5160] <... munmap resumed>) = 0 [pid 5159] close(5 [pid 5160] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5160] close(5 [pid 5158] close(5 [pid 5157] <... munmap resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [ 66.210540][ T5161] syz-executor400 (5161): drop_caches: 1 [pid 5157] close(5 [pid 5160] <... close resumed>) = 0 [pid 5159] <... close resumed>) = 0 [pid 5160] creat("./file1", 000 [pid 5159] creat("./file1", 000 [pid 5158] <... close resumed>) = 0 [pid 5157] <... close resumed>) = 0 [pid 5160] <... creat resumed>) = 5 [pid 5159] <... creat resumed>) = 5 [pid 5160] exit_group(0) = ? [pid 5161] 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 5160] +++ exited with 0 +++ [pid 5159] exit_group(0 [pid 5158] creat("./file1", 000 [pid 5157] creat("./file1", 000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5158] <... creat resumed>) = 5 [pid 5159] <... exit_group resumed>) = ? [pid 5158] exit_group(0 [pid 5157] <... creat resumed>) = 5 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5158] <... exit_group resumed>) = ? [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] +++ exited with 0 +++ [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- ./strace-static-x86_64: Process 5163 attached [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5163 [pid 5157] exit_group(0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5163] set_robust_list(0x555555ee9660, 24) = 0 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] <... exit_group resumed>) = ? [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5163] <... prctl resumed>) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5163] sendfile(4, 3, [88]./strace-static-x86_64: Process 5164 attached [pid 5159] +++ exited with 0 +++ [pid 5157] +++ exited with 0 +++ [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5164 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5161] <... write resumed>) = 2097152 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5161] munmap(0x7ff7eb000000, 138412032 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5164] set_robust_list(0x555555ee9660, 24) = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5164] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5165 attached [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] set_robust_list(0x555555ee9660, 24 [pid 5164] <... openat resumed>) = 3 [pid 5165] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5166 attached [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] write(3, "1000", 4 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5166 [pid 5165] <... prctl resumed>) = 0 [pid 5166] set_robust_list(0x555555ee9660, 24 [pid 5164] <... write resumed>) = 4 [pid 5166] <... set_robust_list resumed>) = 0 [pid 5164] close(3 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] <... close resumed>) = 0 [pid 5161] <... munmap resumed>) = 0 [pid 5165] setpgid(0, 0 [pid 5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5161] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5165 [pid 5165] <... setpgid resumed>) = 0 [pid 5166] <... prctl resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] setpgid(0, 0) = 0 [pid 5165] <... openat resumed>) = 3 [pid 5161] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] <... openat resumed>) = 3 [pid 5166] <... openat resumed>) = 3 [pid 5165] write(3, "1000", 4 [pid 5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5161] close(5 [pid 5165] <... write resumed>) = 4 [pid 5165] close(3) = 0 [pid 5166] write(3, "1000", 4 [pid 5164] <... openat resumed>) = 4 [pid 5166] <... write resumed>) = 4 [pid 5164] sendfile(4, 3, [88] [pid 5166] close(3 [pid 5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5166] <... close resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5165] <... openat resumed>) = 3 [pid 5166] <... openat resumed>) = 3 [pid 5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5165] <... openat resumed>) = 4 [pid 5166] <... openat resumed>) = 4 [pid 5166] sendfile(4, 3, [88] [pid 5165] sendfile(4, 3, [88] [pid 5162] <... sendfile resumed> => [95], 7) = 7 [pid 5161] <... close resumed>) = 0 [pid 5161] creat("./file1", 000) = 5 [pid 5161] exit_group(0) = ? [pid 5162] memfd_create("syzkaller", 0 [pid 5161] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5162] <... memfd_create resumed>) = 5 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 66.376986][ T5162] syz-executor400 (5162): drop_caches: 1 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached , child_tidptr=0x555555ee9650) = 5167 [pid 5167] set_robust_list(0x555555ee9660, 24) = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5162] 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 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5163] <... sendfile resumed> => [95], 7) = 7 [pid 5162] <... write resumed>) = 2097152 [pid 5167] <... openat resumed>) = 3 [pid 5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5167] sendfile(4, 3, [88] [ 66.454214][ T5163] syz-executor400 (5163): drop_caches: 1 [pid 5163] memfd_create("syzkaller", 0) = 5 [pid 5162] munmap(0x7ff7eb000000, 138412032 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5162] <... munmap resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5162] close(5 [pid 5166] <... sendfile resumed> => [95], 7) = 7 [pid 5164] <... sendfile resumed> => [95], 7) = 7 [pid 5164] memfd_create("syzkaller", 0) = 5 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5165] <... sendfile resumed> => [95], 7) = 7 [pid 5162] <... close resumed>) = 0 [pid 5162] creat("./file1", 000 [pid 5165] memfd_create("syzkaller", 0 [pid 5162] <... creat resumed>) = 5 [pid 5162] exit_group(0) = ? [pid 5166] memfd_create("syzkaller", 0 [pid 5165] <... memfd_create resumed>) = 5 [pid 5163] 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 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5166] <... memfd_create resumed>) = 5 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5162] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5168 ./strace-static-x86_64: Process 5168 attached [pid 5168] set_robust_list(0x555555ee9660, 24) = 0 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] setpgid(0, 0) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5168] write(3, "1000", 4) = 4 [pid 5168] close(3) = 0 [pid 5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 66.502961][ T5164] syz-executor400 (5164): drop_caches: 1 [ 66.519881][ T5165] syz-executor400 (5165): drop_caches: 1 [ 66.527954][ T5166] syz-executor400 (5166): drop_caches: 1 [pid 5168] sendfile(4, 3, [88] [pid 5163] <... write resumed>) = 2097152 [pid 5163] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5164] 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 5166] 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 5165] 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 5163] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5163] close(5 [pid 5164] <... write resumed>) = 2097152 [pid 5164] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5163] <... close resumed>) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5163] creat("./file1", 000 [pid 5164] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] <... creat resumed>) = 5 [pid 5164] close(5 [pid 5163] exit_group(0 [pid 5167] <... sendfile resumed> => [95], 7) = 7 [pid 5166] <... write resumed>) = 2097152 [pid 5165] <... write resumed>) = 2097152 [pid 5165] munmap(0x7ff7eb000000, 138412032 [pid 5163] <... exit_group resumed>) = ? [pid 5165] <... munmap resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5163] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5166] munmap(0x7ff7eb000000, 138412032 [pid 5165] close(5 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached , child_tidptr=0x555555ee9650) = 5169 [pid 5169] set_robust_list(0x555555ee9660, 24) = 0 [pid 5165] <... close resumed>) = 0 [pid 5164] <... close resumed>) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] memfd_create("syzkaller", 0 [pid 5166] <... munmap resumed>) = 0 [pid 5165] creat("./file1", 000 [pid 5164] creat("./file1", 000 [pid 5169] <... prctl resumed>) = 0 [pid 5167] <... memfd_create resumed>) = 5 [pid 5166] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5164] <... creat resumed>) = 5 [pid 5169] setpgid(0, 0 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] <... creat resumed>) = 5 [pid 5169] <... setpgid resumed>) = 0 [pid 5167] <... mmap resumed>) = 0x7ff7eb000000 [ 66.653494][ T5167] syz-executor400 (5167): drop_caches: 1 [pid 5166] close(5 [pid 5164] exit_group(0 [pid 5165] exit_group(0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] <... sendfile resumed> => [95], 7) = 7 [pid 5167] 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 5166] <... close resumed>) = 0 [pid 5165] <... exit_group resumed>) = ? [pid 5169] <... openat resumed>) = 3 [pid 5168] memfd_create("syzkaller", 0 [pid 5166] creat("./file1", 000 [pid 5164] <... exit_group resumed>) = ? [pid 5169] write(3, "1000", 4) = 4 [pid 5166] <... creat resumed>) = 5 [pid 5169] close(3) = 0 [pid 5166] exit_group(0 [pid 5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5168] <... memfd_create resumed>) = 5 [pid 5166] <... exit_group resumed>) = ? [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5169] <... openat resumed>) = 3 [pid 5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5169] sendfile(4, 3, [88] [pid 5165] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached [pid 5166] +++ exited with 0 +++ [pid 5164] +++ exited with 0 +++ [pid 5170] set_robust_list(0x555555ee9660, 24 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5170] <... set_robust_list resumed>) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5170] setpgid(0, 0 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5170] <... setpgid resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5171 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5172 [pid 5170] write(3, "1000", 4) = 4 [pid 5170] close(3) = 0 [pid 5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5170] sendfile(4, 3, [88]./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x555555ee9660, 24./strace-static-x86_64: Process 5172 attached [pid 5172] set_robust_list(0x555555ee9660, 24) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5172] setpgid(0, 0 [pid 5171] <... set_robust_list resumed>) = 0 [pid 5172] <... setpgid resumed>) = 0 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] <... openat resumed>) = 3 [pid 5172] write(3, "1000", 4) = 4 [pid 5172] close(3) = 0 [pid 5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5172] sendfile(4, 3, [88] [pid 5171] <... prctl resumed>) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] 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 5171] <... openat resumed>) = 3 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5170 [ 66.708330][ T5168] syz-executor400 (5168): drop_caches: 1 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5171] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5171] sendfile(4, 3, [88] [pid 5167] <... write resumed>) = 2097152 [pid 5168] <... write resumed>) = 2097152 [pid 5167] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5167] close(5 [pid 5168] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5167] <... close resumed>) = 0 [pid 5168] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5168] close(5 [pid 5167] creat("./file1", 000) = 5 [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5173 ./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x555555ee9660, 24) = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5168] <... close resumed>) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5168] creat("./file1", 000) = 5 [pid 5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5168] exit_group(0 [pid 5173] <... openat resumed>) = 4 [pid 5168] <... exit_group resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5173] sendfile(4, 3, [88] [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5174 [pid 5174] <... set_robust_list resumed>) = 0 [pid 5169] <... sendfile resumed> => [95], 7) = 7 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] <... sendfile resumed> => [95], 7) = 7 [pid 5174] <... prctl resumed>) = 0 [pid 5172] <... sendfile resumed> => [95], 7) = 7 [pid 5171] <... sendfile resumed> => [95], 7) = 7 [pid 5169] memfd_create("syzkaller", 0 [pid 5171] memfd_create("syzkaller", 0) = 5 [pid 5174] setpgid(0, 0 [pid 5172] memfd_create("syzkaller", 0 [pid 5170] memfd_create("syzkaller", 0 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5169] <... memfd_create resumed>) = 5 [pid 5174] <... setpgid resumed>) = 0 [pid 5172] <... memfd_create resumed>) = 5 [pid 5170] <... memfd_create resumed>) = 5 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5171] <... mmap resumed>) = 0x7ff7eb000000 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5174] <... openat resumed>) = 3 [pid 5172] <... mmap resumed>) = 0x7ff7eb000000 [pid 5170] <... mmap resumed>) = 0x7ff7eb000000 [pid 5169] <... mmap resumed>) = 0x7ff7eb000000 [ 66.946300][ T5169] syz-executor400 (5169): drop_caches: 1 [ 66.948574][ T5172] syz-executor400 (5172): drop_caches: 1 [ 66.959980][ T5170] syz-executor400 (5170): drop_caches: 1 [ 66.961072][ T5171] syz-executor400 (5171): drop_caches: 1 [pid 5174] write(3, "1000", 4 [pid 5173] <... sendfile resumed> => [95], 7) = 7 [pid 5173] memfd_create("syzkaller", 0 [pid 5171] 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 5174] <... write resumed>) = 4 [pid 5174] close(3) = 0 [pid 5174] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5173] <... memfd_create resumed>) = 5 [pid 5174] <... openat resumed>) = 3 [pid 5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5174] sendfile(4, 3, [88] [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5170] 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 5172] 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 [ 67.007962][ T5173] syz-executor400 (5173): drop_caches: 1 [pid 5169] 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 5173] 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 5171] <... write resumed>) = 2097152 [pid 5170] <... write resumed>) = 2097152 [pid 5171] munmap(0x7ff7eb000000, 138412032 [pid 5170] munmap(0x7ff7eb000000, 138412032 [pid 5169] <... write resumed>) = 2097152 [pid 5169] munmap(0x7ff7eb000000, 138412032 [pid 5172] <... write resumed>) = 2097152 [pid 5171] <... munmap resumed>) = 0 [pid 5170] <... munmap resumed>) = 0 [pid 5171] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5171] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5173] <... write resumed>) = 2097152 [pid 5170] close(5 [pid 5169] <... munmap resumed>) = 0 [pid 5172] munmap(0x7ff7eb000000, 138412032 [pid 5171] close(5 [pid 5173] munmap(0x7ff7eb000000, 138412032 [pid 5172] <... munmap resumed>) = 0 [pid 5172] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5173] <... munmap resumed>) = 0 [pid 5170] <... close resumed>) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5172] close(5 [pid 5173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5171] <... close resumed>) = 0 [pid 5170] creat("./file1", 000 [pid 5173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5170] <... creat resumed>) = 5 [pid 5169] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] close(5 [pid 5173] close(5 [pid 5171] creat("./file1", 000 [pid 5170] exit_group(0 [pid 5171] <... creat resumed>) = 5 [pid 5170] <... exit_group resumed>) = ? [pid 5171] exit_group(0 [pid 5170] +++ exited with 0 +++ [pid 5169] <... close resumed>) = 0 [pid 5171] <... exit_group resumed>) = ? [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5172] <... close resumed>) = 0 [pid 5171] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5175 attached [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5175] set_robust_list(0x555555ee9660, 24 [pid 5172] creat("./file1", 000./strace-static-x86_64: Process 5176 attached [pid 5175] <... set_robust_list resumed>) = 0 [pid 5172] <... creat resumed>) = 5 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5175 [pid 5176] set_robust_list(0x555555ee9660, 24 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5169] creat("./file1", 000 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5176 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5172] exit_group(0 [pid 5169] <... creat resumed>) = 5 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5176] setpgid(0, 0) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5172] <... exit_group resumed>) = ? [pid 5176] <... openat resumed>) = 3 [pid 5169] exit_group(0 [pid 5176] write(3, "1000", 4) = 4 [pid 5175] <... prctl resumed>) = 0 [pid 5176] close(3 [pid 5175] setpgid(0, 0 [pid 5169] <... exit_group resumed>) = ? [pid 5176] <... close resumed>) = 0 [pid 5175] <... setpgid resumed>) = 0 [pid 5174] <... sendfile resumed> => [95], 7) = 7 [pid 5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5176] <... openat resumed>) = 3 [pid 5175] <... openat resumed>) = 3 [pid 5174] memfd_create("syzkaller", 0 [pid 5173] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5175] write(3, "1000", 4 [pid 5174] <... memfd_create resumed>) = 5 [pid 5173] creat("./file1", 000 [pid 5172] +++ exited with 0 +++ [pid 5169] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5176] <... openat resumed>) = 4 [pid 5176] sendfile(4, 3, [88] [pid 5175] <... write resumed>) = 4 [pid 5175] close(3) = 0 [pid 5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5175] <... openat resumed>) = 3 [pid 5174] <... mmap resumed>) = 0x7ff7eb000000 [pid 5173] <... creat resumed>) = 5 [pid 5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5173] exit_group(0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5175] <... openat resumed>) = 4 [pid 5175] sendfile(4, 3, [88] [pid 5173] <... exit_group resumed>) = ? [pid 5173] +++ exited with 0 +++ [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- ./strace-static-x86_64: Process 5177 attached [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5177 [pid 5177] set_robust_list(0x555555ee9660, 24 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5177] <... set_robust_list resumed>) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] <... prctl resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5177] setpgid(0, 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5178 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] <... setpgid resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5178 attached [pid 5178] set_robust_list(0x555555ee9660, 24) = 0 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5178] setpgid(0, 0./strace-static-x86_64: Process 5179 attached ) = 0 [pid 5177] <... openat resumed>) = 3 [pid 5179] set_robust_list(0x555555ee9660, 24 [pid 5177] write(3, "1000", 4 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5179 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... write resumed>) = 4 [pid 5177] close(3 [pid 5179] <... set_robust_list resumed>) = 0 [pid 5177] <... close resumed>) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] setpgid(0, 0) = 0 [pid 5178] write(3, "1000", 4 [pid 5177] <... openat resumed>) = 3 [pid 5178] <... write resumed>) = 4 [pid 5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] close(3) = 0 [pid 5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5177] <... openat resumed>) = 4 [pid 5179] <... openat resumed>) = 3 [pid 5178] sendfile(4, 3, [88] [pid 5179] write(3, "1000", 4 [ 67.158292][ T5174] syz-executor400 (5174): drop_caches: 1 [pid 5177] sendfile(4, 3, [88] [pid 5179] <... write resumed>) = 4 [pid 5174] 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 5179] close(3) = 0 [pid 5179] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5179] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5179] sendfile(4, 3, [88] [pid 5174] <... write resumed>) = 2097152 [pid 5174] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5174] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5174] close(5 [pid 5176] <... sendfile resumed> => [95], 7) = 7 [pid 5174] <... close resumed>) = 0 [pid 5176] memfd_create("syzkaller", 0) = 5 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5174] creat("./file1", 000) = 5 [pid 5174] exit_group(0) = ? [pid 5174] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5176] <... mmap resumed>) = 0x7ff7eb000000 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5180 ./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x555555ee9660, 24) = 0 [ 67.307950][ T5176] syz-executor400 (5176): drop_caches: 1 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5180] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5180] sendfile(4, 3, [88] [pid 5175] <... sendfile resumed> => [95], 7) = 7 [pid 5175] memfd_create("syzkaller", 0 [pid 5177] <... sendfile resumed> => [95], 7) = 7 [pid 5176] 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 5175] <... memfd_create resumed>) = 5 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] memfd_create("syzkaller", 0 [pid 5175] <... mmap resumed>) = 0x7ff7eb000000 [pid 5177] <... memfd_create resumed>) = 5 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5178] <... sendfile resumed> => [95], 7) = 7 [pid 5178] memfd_create("syzkaller", 0) = 5 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 67.362387][ T5175] syz-executor400 (5175): drop_caches: 1 [ 67.369534][ T5177] syz-executor400 (5177): drop_caches: 1 [ 67.383041][ T5178] syz-executor400 (5178): drop_caches: 1 [pid 5175] 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 5179] <... sendfile resumed> => [95], 7) = 7 [pid 5177] 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 5176] <... write resumed>) = 2097152 [pid 5176] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5179] memfd_create("syzkaller", 0 [pid 5178] 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 5177] <... write resumed>) = 2097152 [pid 5176] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5175] <... write resumed>) = 2097152 [pid 5179] <... memfd_create resumed>) = 5 [pid 5176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] close(5 [pid 5177] munmap(0x7ff7eb000000, 138412032 [pid 5175] munmap(0x7ff7eb000000, 138412032 [pid 5180] <... sendfile resumed> => [95], 7) = 7 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5180] memfd_create("syzkaller", 0 [pid 5175] <... munmap resumed>) = 0 [pid 5180] <... memfd_create resumed>) = 5 [pid 5178] <... write resumed>) = 2097152 [pid 5177] <... munmap resumed>) = 0 [pid 5176] <... close resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] munmap(0x7ff7eb000000, 138412032 [pid 5180] <... mmap resumed>) = 0x7ff7eb000000 [pid 5177] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5176] creat("./file1", 000 [pid 5175] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5179] 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 5178] <... munmap resumed>) = 0 [pid 5177] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... creat resumed>) = 5 [pid 5175] close(5 [pid 5178] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5177] close(5 [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 67.458395][ T5179] syz-executor400 (5179): drop_caches: 1 [ 67.494025][ T5180] syz-executor400 (5180): drop_caches: 1 [pid 5180] 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 5178] close(5 [pid 5176] exit_group(0 [pid 5177] <... close resumed>) = 0 [pid 5176] <... exit_group resumed>) = ? [pid 5180] <... write resumed>) = 2097152 [pid 5177] creat("./file1", 000 [pid 5176] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5177] <... creat resumed>) = 5 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5177] exit_group(0) = ? [pid 5180] munmap(0x7ff7eb000000, 138412032./strace-static-x86_64: Process 5181 attached [pid 5181] set_robust_list(0x555555ee9660, 24) = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5175] <... close resumed>) = 0 [pid 5181] <... prctl resumed>) = 0 [pid 5180] <... munmap resumed>) = 0 [pid 5179] <... write resumed>) = 2097152 [pid 5178] <... close resumed>) = 0 [pid 5177] +++ exited with 0 +++ [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5181 [pid 5181] setpgid(0, 0 [pid 5178] creat("./file1", 000 [pid 5175] creat("./file1", 000 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5181] <... setpgid resumed>) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] <... creat resumed>) = 5 [pid 5175] <... creat resumed>) = 5 [pid 5179] munmap(0x7ff7eb000000, 138412032 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5181] <... openat resumed>) = 3 [pid 5180] close(5 [pid 5178] exit_group(0 [pid 5175] exit_group(0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5181] write(3, "1000", 4 [pid 5175] <... exit_group resumed>) = ? [pid 5181] <... write resumed>) = 4 [pid 5179] <... munmap resumed>) = 0 [pid 5178] <... exit_group resumed>) = ? [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5181] close(3 [pid 5179] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5178] +++ exited with 0 +++ [pid 5175] +++ exited with 0 +++ [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5181] <... close resumed>) = 0 [pid 5179] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- ./strace-static-x86_64: Process 5182 attached [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5182 [pid 5182] set_robust_list(0x555555ee9660, 24 [pid 5181] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] close(5 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5182] <... prctl resumed>) = 0 [pid 5181] <... openat resumed>) = 4 [pid 5182] setpgid(0, 0 [pid 5181] sendfile(4, 3, [88] [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5182] <... setpgid resumed>) = 0 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5182] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] write(3, "1000", 4 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5183 ./strace-static-x86_64: Process 5184 attached [pid 5182] <... write resumed>) = 4 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5184 [pid 5182] close(3 [pid 5184] set_robust_list(0x555555ee9660, 24 [pid 5182] <... close resumed>) = 0 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5182] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5183 attached ) = 0 [pid 5182] <... openat resumed>) = 3 [pid 5179] <... close resumed>) = 0 [pid 5184] setpgid(0, 0 [pid 5182] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5184] <... setpgid resumed>) = 0 [pid 5183] set_robust_list(0x555555ee9660, 24 [pid 5182] <... openat resumed>) = 4 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... set_robust_list resumed>) = 0 [pid 5179] creat("./file1", 000 [pid 5184] <... openat resumed>) = 3 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5182] sendfile(4, 3, [88] [pid 5179] <... creat resumed>) = 5 [pid 5184] write(3, "1000", 4 [pid 5183] <... prctl resumed>) = 0 [pid 5183] setpgid(0, 0 [pid 5180] <... close resumed>) = 0 [pid 5179] exit_group(0 [pid 5184] <... write resumed>) = 4 [pid 5183] <... setpgid resumed>) = 0 [pid 5184] close(3 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] <... close resumed>) = 0 [pid 5184] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5183] <... openat resumed>) = 3 [pid 5180] creat("./file1", 000 [pid 5179] <... exit_group resumed>) = ? [pid 5184] <... openat resumed>) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3 [pid 5184] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5183] <... close resumed>) = 0 [pid 5180] <... creat resumed>) = 5 [pid 5179] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5183] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5183] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5180] exit_group(0 [pid 5184] <... openat resumed>) = 4 [pid 5183] <... openat resumed>) = 4 [pid 5180] <... exit_group resumed>) = ? [pid 5184] sendfile(4, 3, [88] [pid 5183] sendfile(4, 3, [88] [pid 5180] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5186 attached ./strace-static-x86_64: Process 5185 attached [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5186 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5185 [pid 5185] set_robust_list(0x555555ee9660, 24 [pid 5186] set_robust_list(0x555555ee9660, 24 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5186] <... set_robust_list resumed>) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] <... prctl resumed>) = 0 [pid 5185] <... prctl resumed>) = 0 [pid 5186] setpgid(0, 0 [pid 5185] setpgid(0, 0) = 0 [pid 5186] <... setpgid resumed>) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] write(3, "1000", 4 [pid 5185] write(3, "1000", 4 [pid 5182] <... sendfile resumed> => [95], 7) = 7 [pid 5186] <... write resumed>) = 4 [pid 5185] <... write resumed>) = 4 [pid 5186] close(3 [pid 5185] close(3 [pid 5186] <... close resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5186] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5185] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5186] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5185] <... openat resumed>) = 3 [pid 5186] <... openat resumed>) = 4 [pid 5185] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5186] sendfile(4, 3, [88] [pid 5185] <... openat resumed>) = 4 [pid 5185] sendfile(4, 3, [88] [pid 5182] memfd_create("syzkaller", 0) = 5 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 67.692232][ T5182] syz-executor400 (5182): drop_caches: 1 [pid 5181] <... sendfile resumed> => [95], 7) = 7 [pid 5181] memfd_create("syzkaller", 0) = 5 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 67.744632][ T5181] syz-executor400 (5181): drop_caches: 1 [pid 5182] 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 5181] 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 5182] <... write resumed>) = 2097152 [pid 5182] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5183] <... sendfile resumed> => [95], 7) = 7 [pid 5183] memfd_create("syzkaller", 0 [pid 5182] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5183] <... memfd_create resumed>) = 5 [pid 5182] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5181] <... write resumed>) = 2097152 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5182] close(5 [pid 5184] <... sendfile resumed> => [95], 7) = 7 [ 67.831882][ T5183] syz-executor400 (5183): drop_caches: 1 [ 67.861245][ T5184] syz-executor400 (5184): drop_caches: 1 [pid 5183] <... mmap resumed>) = 0x7ff7eb000000 [pid 5181] munmap(0x7ff7eb000000, 138412032 [pid 5184] memfd_create("syzkaller", 0 [pid 5181] <... munmap resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5181] close(5 [pid 5184] <... memfd_create resumed>) = 5 [pid 5181] <... close resumed>) = 0 [pid 5186] <... sendfile resumed> => [95], 7) = 7 [pid 5185] <... sendfile resumed> => [95], 7) = 7 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5181] creat("./file1", 000) = 5 [pid 5182] <... close resumed>) = 0 [pid 5181] exit_group(0) = ? [pid 5185] memfd_create("syzkaller", 0 [pid 5186] memfd_create("syzkaller", 0) = 5 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5185] <... memfd_create resumed>) = 5 [pid 5182] creat("./file1", 000 [pid 5181] +++ exited with 0 +++ [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5182] <... creat resumed>) = 5 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5185] <... mmap resumed>) = 0x7ff7eb000000 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached [pid 5182] exit_group(0 [pid 5187] set_robust_list(0x555555ee9660, 24) = 0 [pid 5182] <... exit_group resumed>) = ? [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5187 [pid 5187] close(3 [pid 5183] 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 5182] +++ exited with 0 +++ [pid 5187] <... close resumed>) = 0 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5187] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5187] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5187] <... openat resumed>) = 4 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5188 attached [pid 5188] set_robust_list(0x555555ee9660, 24 [ 67.892106][ T5186] syz-executor400 (5186): drop_caches: 1 [ 67.907557][ T5185] syz-executor400 (5185): drop_caches: 1 [pid 5187] sendfile(4, 3, [88] [pid 5188] <... set_robust_list resumed>) = 0 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5188 [pid 5188] <... prctl resumed>) = 0 [pid 5188] setpgid(0, 0) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5188] write(3, "1000", 4) = 4 [pid 5188] close(3) = 0 [pid 5188] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5188] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5184] 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 5188] <... openat resumed>) = 4 [pid 5188] sendfile(4, 3, [88] [pid 5183] <... write resumed>) = 2097152 [pid 5185] 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 5186] 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 5184] <... write resumed>) = 2097152 [pid 5183] munmap(0x7ff7eb000000, 138412032 [pid 5184] munmap(0x7ff7eb000000, 138412032 [pid 5183] <... munmap resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5183] close(5 [pid 5185] <... write resumed>) = 2097152 [pid 5184] <... munmap resumed>) = 0 [pid 5183] <... close resumed>) = 0 [pid 5186] <... write resumed>) = 2097152 [pid 5185] munmap(0x7ff7eb000000, 138412032 [pid 5184] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5186] munmap(0x7ff7eb000000, 138412032 [pid 5184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5184] close(5 [pid 5183] creat("./file1", 000) = 5 [pid 5183] exit_group(0) = ? [pid 5183] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached [pid 5186] <... munmap resumed>) = 0 [pid 5189] set_robust_list(0x555555ee9660, 24) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5189 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5186] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5185] <... munmap resumed>) = 0 [pid 5189] <... openat resumed>) = 3 [pid 5189] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5189] sendfile(4, 3, [88] [pid 5186] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5186] close(5 [pid 5185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] close(5) = 0 [pid 5185] creat("./file1", 000) = 5 [pid 5184] <... close resumed>) = 0 [pid 5185] exit_group(0 [pid 5186] <... close resumed>) = 0 [pid 5184] creat("./file1", 000 [pid 5187] <... sendfile resumed> => [95], 7) = 7 [pid 5186] creat("./file1", 000 [pid 5185] <... exit_group resumed>) = ? [pid 5184] <... creat resumed>) = 5 [pid 5185] +++ exited with 0 +++ [pid 5184] exit_group(0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5184] <... exit_group resumed>) = ? [pid 5059] <... restart_syscall resumed>) = 0 [pid 5186] <... creat resumed>) = 5 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached [pid 5186] exit_group(0 [pid 5184] +++ exited with 0 +++ [pid 5190] set_robust_list(0x555555ee9660, 24 [pid 5186] <... exit_group resumed>) = ? [pid 5190] <... set_robust_list resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5190] <... prctl resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5190 [pid 5190] setpgid(0, 0) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5190] write(3, "1000", 4 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5190] <... write resumed>) = 4 [pid 5190] close(3) = 0 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5190] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5186] +++ exited with 0 +++ [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5190] <... openat resumed>) = 3 [pid 5190] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- ./strace-static-x86_64: Process 5191 attached [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5191 [pid 5191] set_robust_list(0x555555ee9660, 24 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] <... openat resumed>) = 4 [pid 5191] <... prctl resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5190] sendfile(4, 3, [88] [pid 5191] setpgid(0, 0 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] <... setpgid resumed>) = 0 [pid 5187] memfd_create("syzkaller", 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] <... sendfile resumed> => [95], 7) = 7 [pid 5187] <... memfd_create resumed>) = 5 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5192 [pid 5191] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5192 attached [pid 5191] write(3, "1000", 4 [pid 5188] memfd_create("syzkaller", 0 [pid 5187] <... mmap resumed>) = 0x7ff7eb000000 [pid 5192] set_robust_list(0x555555ee9660, 24 [pid 5191] <... write resumed>) = 4 [pid 5191] close(3 [pid 5188] <... memfd_create resumed>) = 5 [pid 5191] <... close resumed>) = 0 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5191] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5192] <... set_robust_list resumed>) = 0 [pid 5188] <... mmap resumed>) = 0x7ff7eb000000 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] <... openat resumed>) = 3 [pid 5192] <... prctl resumed>) = 0 [pid 5192] setpgid(0, 0) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5192] write(3, "1000", 4 [pid 5191] <... openat resumed>) = 4 [pid 5192] <... write resumed>) = 4 [pid 5191] sendfile(4, 3, [88] [pid 5192] close(3) = 0 [pid 5192] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5192] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 68.093395][ T5187] syz-executor400 (5187): drop_caches: 1 [ 68.119768][ T5188] syz-executor400 (5188): drop_caches: 1 [pid 5192] sendfile(4, 3, [88] [pid 5188] 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 5187] 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 5188] <... write resumed>) = 2097152 [pid 5187] <... write resumed>) = 2097152 [pid 5188] munmap(0x7ff7eb000000, 138412032 [pid 5187] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5188] <... munmap resumed>) = 0 [pid 5190] <... sendfile resumed> => [95], 7) = 7 [pid 5189] <... sendfile resumed> => [95], 7) = 7 [pid 5188] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5187] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5190] memfd_create("syzkaller", 0 [pid 5187] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5190] <... memfd_create resumed>) = 5 [pid 5188] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5188] close(5 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5189] memfd_create("syzkaller", 0 [pid 5187] close(5 [pid 5189] <... memfd_create resumed>) = 5 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 68.262777][ T5189] syz-executor400 (5189): drop_caches: 1 [ 68.270475][ T5190] syz-executor400 (5190): drop_caches: 1 [pid 5188] <... close resumed>) = 0 [pid 5187] <... close resumed>) = 0 [pid 5189] 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 5190] 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 5188] creat("./file1", 000 [pid 5187] creat("./file1", 000) = 5 [pid 5188] <... creat resumed>) = 5 [pid 5188] exit_group(0 [pid 5187] exit_group(0 [pid 5188] <... exit_group resumed>) = ? [pid 5187] <... exit_group resumed>) = ? [pid 5188] +++ exited with 0 +++ [pid 5187] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5190] <... write resumed>) = 2097152 [pid 5189] <... write resumed>) = 2097152 [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5189] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5192] <... sendfile resumed> => [95], 7) = 7 [pid 5191] <... sendfile resumed> => [95], 7) = 7 [pid 5190] munmap(0x7ff7eb000000, 138412032 [pid 5189] close(5 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5062] <... restart_syscall resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5193 attached [pid 5192] memfd_create("syzkaller", 0 [pid 5191] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5194 attached [pid 5193] set_robust_list(0x555555ee9660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5193 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5194 [pid 5194] set_robust_list(0x555555ee9660, 24 [pid 5193] <... set_robust_list resumed>) = 0 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] <... prctl resumed>) = 0 [pid 5193] setpgid(0, 0 [pid 5194] setpgid(0, 0) = 0 [pid 5193] <... setpgid resumed>) = 0 [pid 5192] <... memfd_create resumed>) = 5 [pid 5191] <... memfd_create resumed>) = 5 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5190] <... munmap resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5194] <... openat resumed>) = 3 [pid 5193] <... openat resumed>) = 3 [pid 5192] <... mmap resumed>) = 0x7ff7eb000000 [pid 5191] <... mmap resumed>) = 0x7ff7eb000000 [pid 5190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5189] <... close resumed>) = 0 [pid 5194] write(3, "1000", 4 [pid 5193] write(3, "1000", 4 [pid 5194] <... write resumed>) = 4 [pid 5193] <... write resumed>) = 4 [pid 5194] close(3 [pid 5193] close(3 [pid 5194] <... close resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5194] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5193] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5190] close(5 [pid 5189] creat("./file1", 000 [pid 5194] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5193] <... openat resumed>) = 3 [pid 5194] <... openat resumed>) = 4 [pid 5193] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5194] sendfile(4, 3, [88] [pid 5193] <... openat resumed>) = 4 [pid 5193] sendfile(4, 3, [88] [pid 5189] <... creat resumed>) = 5 [pid 5189] exit_group(0) = ? [ 68.363122][ T5191] syz-executor400 (5191): drop_caches: 1 [ 68.378353][ T5192] syz-executor400 (5192): drop_caches: 1 [pid 5189] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5195 [pid 5190] <... close resumed>) = 0 ./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x555555ee9660, 24) = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5195] setpgid(0, 0) = 0 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5192] 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 5191] 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 5190] creat("./file1", 000 [pid 5195] write(3, "1000", 4) = 4 [pid 5195] close(3) = 0 [pid 5190] <... creat resumed>) = 5 [pid 5195] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5190] exit_group(0 [pid 5195] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5190] <... exit_group resumed>) = ? [pid 5195] <... openat resumed>) = 4 [pid 5190] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5196 attached [pid 5195] sendfile(4, 3, [88] [pid 5196] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5196 [pid 5196] <... set_robust_list resumed>) = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5192] <... write resumed>) = 2097152 [pid 5196] <... prctl resumed>) = 0 [pid 5191] <... write resumed>) = 2097152 [pid 5196] setpgid(0, 0 [pid 5192] munmap(0x7ff7eb000000, 138412032 [pid 5191] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5196] <... setpgid resumed>) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5196] write(3, "1000", 4 [pid 5192] <... munmap resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5196] <... write resumed>) = 4 [pid 5192] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5196] close(3) = 0 [pid 5192] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5196] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5192] close(5 [pid 5191] close(5 [pid 5196] <... openat resumed>) = 3 [pid 5196] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5196] sendfile(4, 3, [88] [pid 5192] <... close resumed>) = 0 [pid 5191] <... close resumed>) = 0 [pid 5192] creat("./file1", 000) = 5 [pid 5191] creat("./file1", 000 [pid 5192] exit_group(0) = ? [pid 5191] <... creat resumed>) = 5 [pid 5192] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5191] exit_group(0 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] <... exit_group resumed>) = ? [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5197 ./strace-static-x86_64: Process 5197 attached [pid 5191] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5194] <... sendfile resumed> => [95], 7) = 7 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5197] set_robust_list(0x555555ee9660, 24) = 0 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5194] memfd_create("syzkaller", 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5197] <... prctl resumed>) = 0 [pid 5194] <... memfd_create resumed>) = 5 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5198 attached [pid 5197] setpgid(0, 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5198 [pid 5197] <... setpgid resumed>) = 0 [pid 5198] set_robust_list(0x555555ee9660, 24) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5194] <... mmap resumed>) = 0x7ff7eb000000 [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5197] <... openat resumed>) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5193] <... sendfile resumed> => [95], 7) = 7 [pid 5193] memfd_create("syzkaller", 0) = 5 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5198] <... prctl resumed>) = 0 [pid 5197] close(3 [pid 5195] <... sendfile resumed> => [95], 7) = 7 [pid 5198] setpgid(0, 0 [pid 5197] <... close resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5198] <... setpgid resumed>) = 0 [pid 5197] <... openat resumed>) = 3 [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5197] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5197] sendfile(4, 3, [88] [pid 5195] memfd_create("syzkaller", 0 [pid 5198] <... openat resumed>) = 3 [pid 5195] <... memfd_create resumed>) = 5 [pid 5198] write(3, "1000", 4 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5198] <... write resumed>) = 4 [pid 5195] <... mmap resumed>) = 0x7ff7eb000000 [pid 5194] 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 5198] close(3) = 0 [ 68.595227][ T5194] syz-executor400 (5194): drop_caches: 1 [ 68.604537][ T5193] syz-executor400 (5193): drop_caches: 1 [ 68.619242][ T5195] syz-executor400 (5195): drop_caches: 1 [pid 5193] 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 5198] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5194] <... write resumed>) = 2097152 [pid 5198] <... openat resumed>) = 3 [pid 5198] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5194] munmap(0x7ff7eb000000, 138412032 [pid 5198] sendfile(4, 3, [88] [pid 5194] <... munmap resumed>) = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5194] close(5) = 0 [pid 5194] creat("./file1", 000) = 5 [pid 5194] exit_group(0) = ? [pid 5195] 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 5193] <... write resumed>) = 2097152 [pid 5194] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5199 [pid 5193] munmap(0x7ff7eb000000, 138412032./strace-static-x86_64: Process 5199 attached [pid 5199] set_robust_list(0x555555ee9660, 24) = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5193] <... munmap resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5199] sendfile(4, 3, [88] [pid 5193] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5193] close(5 [pid 5195] <... write resumed>) = 2097152 [pid 5195] munmap(0x7ff7eb000000, 138412032 [pid 5196] <... sendfile resumed> => [95], 7) = 7 [pid 5195] <... munmap resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5195] close(5 [pid 5196] memfd_create("syzkaller", 0 [pid 5193] creat("./file1", 000 [pid 5196] <... memfd_create resumed>) = 5 [pid 5193] <... creat resumed>) = 5 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] exit_group(0 [pid 5196] <... mmap resumed>) = 0x7ff7eb000000 [pid 5193] <... exit_group resumed>) = ? [pid 5195] <... close resumed>) = 0 [pid 5193] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x555555ee9660, 24) = 0 [ 68.749048][ T5196] syz-executor400 (5196): drop_caches: 1 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5200] setpgid(0, 0) = 0 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5200] write(3, "1000", 4 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5200 [pid 5200] <... write resumed>) = 4 [pid 5195] creat("./file1", 000 [pid 5200] close(3) = 0 [pid 5200] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5200] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5200] sendfile(4, 3, [88] [pid 5197] <... sendfile resumed> => [95], 7) = 7 [pid 5195] <... creat resumed>) = 5 [pid 5195] exit_group(0 [pid 5197] memfd_create("syzkaller", 0 [pid 5195] <... exit_group resumed>) = ? [pid 5197] <... memfd_create resumed>) = 5 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5196] 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 5197] 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 5195] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5201 attached , child_tidptr=0x555555ee9650) = 5201 [pid 5201] set_robust_list(0x555555ee9660, 24) = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3 [pid 5196] <... write resumed>) = 2097152 [pid 5201] <... close resumed>) = 0 [ 68.825871][ T5197] syz-executor400 (5197): drop_caches: 1 [pid 5201] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5201] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5196] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5201] sendfile(4, 3, [88] [pid 5196] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5196] close(5 [pid 5197] <... write resumed>) = 2097152 [pid 5197] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5198] <... sendfile resumed> => [95], 7) = 7 [pid 5196] <... close resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5196] creat("./file1", 000) = 5 [pid 5196] exit_group(0) = ? [pid 5198] memfd_create("syzkaller", 0) = 5 [pid 5197] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5196] +++ exited with 0 +++ [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [ 68.916096][ T5198] syz-executor400 (5198): drop_caches: 1 [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5198] <... mmap resumed>) = 0x7ff7eb000000 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5197] close(5 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5199] <... sendfile resumed> => [95], 7) = 7 [pid 5199] memfd_create("syzkaller", 0) = 5 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5197] <... close resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5202 ./strace-static-x86_64: Process 5202 attached [pid 5200] <... sendfile resumed> => [95], 7) = 7 [pid 5198] 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 5197] creat("./file1", 000 [pid 5202] set_robust_list(0x555555ee9660, 24) = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5202] setpgid(0, 0) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] 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 5202] write(3, "1000", 4) = 4 [pid 5202] close(3) = 0 [pid 5202] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5202] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5197] <... creat resumed>) = 5 [pid 5202] sendfile(4, 3, [88] [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5200] memfd_create("syzkaller", 0) = 5 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5199] <... write resumed>) = 2097152 [pid 5198] <... write resumed>) = 2097152 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 68.957118][ T5199] syz-executor400 (5199): drop_caches: 1 [ 68.988273][ T5200] syz-executor400 (5200): drop_caches: 1 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5203 attached , child_tidptr=0x555555ee9650) = 5203 [pid 5203] set_robust_list(0x555555ee9660, 24 [pid 5198] munmap(0x7ff7eb000000, 138412032 [pid 5203] <... set_robust_list resumed>) = 0 [pid 5199] munmap(0x7ff7eb000000, 138412032 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5198] <... munmap resumed>) = 0 [pid 5203] <... prctl resumed>) = 0 [pid 5199] <... munmap resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5203] setpgid(0, 0 [pid 5199] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5203] <... setpgid resumed>) = 0 [pid 5198] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5198] close(5 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5203] <... openat resumed>) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5199] close(5 [pid 5203] close(3) = 0 [pid 5200] 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 5203] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5203] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5203] sendfile(4, 3, [88] [pid 5201] <... sendfile resumed> => [95], 7) = 7 [pid 5200] <... write resumed>) = 2097152 [pid 5198] <... close resumed>) = 0 [pid 5200] munmap(0x7ff7eb000000, 138412032 [pid 5198] creat("./file1", 000 [pid 5201] memfd_create("syzkaller", 0 [pid 5198] <... creat resumed>) = 5 [pid 5200] <... munmap resumed>) = 0 [pid 5199] <... close resumed>) = 0 [pid 5199] creat("./file1", 000 [pid 5198] exit_group(0 [pid 5199] <... creat resumed>) = 5 [pid 5199] exit_group(0 [pid 5198] <... exit_group resumed>) = ? [pid 5199] <... exit_group resumed>) = ? [pid 5201] <... memfd_create resumed>) = 5 [pid 5200] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5199] +++ exited with 0 +++ [pid 5198] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5200] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5204 attached [ 69.065886][ T5201] syz-executor400 (5201): drop_caches: 1 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5204 [pid 5204] set_robust_list(0x555555ee9660, 24 [pid 5200] close(5 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached [pid 5204] <... set_robust_list resumed>) = 0 [pid 5202] <... sendfile resumed> => [95], 7) = 7 [pid 5205] set_robust_list(0x555555ee9660, 24) = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] <... mmap resumed>) = 0x7ff7eb000000 [pid 5205] setpgid(0, 0 [pid 5204] <... prctl resumed>) = 0 [pid 5205] <... setpgid resumed>) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5204] setpgid(0, 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5205 [pid 5204] <... setpgid resumed>) = 0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] <... openat resumed>) = 3 [pid 5204] <... openat resumed>) = 3 [pid 5200] <... close resumed>) = 0 [pid 5200] creat("./file1", 000 [pid 5205] write(3, "1000", 4 [pid 5202] memfd_create("syzkaller", 0 [pid 5200] <... creat resumed>) = 5 [pid 5205] <... write resumed>) = 4 [pid 5205] close(3 [pid 5202] <... memfd_create resumed>) = 5 [pid 5205] <... close resumed>) = 0 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5205] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5202] <... mmap resumed>) = 0x7ff7eb000000 [pid 5200] exit_group(0 [pid 5204] write(3, "1000", 4 [pid 5205] <... openat resumed>) = 3 [pid 5200] <... exit_group resumed>) = ? [pid 5205] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5204] <... write resumed>) = 4 [pid 5200] +++ exited with 0 +++ [pid 5205] <... openat resumed>) = 4 [pid 5204] close(3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5205] sendfile(4, 3, [88] [pid 5204] <... close resumed>) = 0 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5206 attached [pid 5204] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5206] set_robust_list(0x555555ee9660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5206 [pid 5206] <... set_robust_list resumed>) = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5206] setpgid(0, 0) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5206] write(3, "1000", 4 [pid 5204] <... openat resumed>) = 3 [pid 5206] <... write resumed>) = 4 [pid 5206] close(3 [pid 5204] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5206] <... close resumed>) = 0 [pid 5204] <... openat resumed>) = 4 [pid 5206] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5206] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5206] sendfile(4, 3, [88] [pid 5204] sendfile(4, 3, [88] [pid 5202] 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 [ 69.137752][ T5202] syz-executor400 (5202): drop_caches: 1 [pid 5201] 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 5201] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5201] close(5) = 0 [pid 5201] creat("./file1", 000) = 5 [pid 5201] exit_group(0) = ? [pid 5201] +++ exited with 0 +++ [pid 5203] <... sendfile resumed> => [95], 7) = 7 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5207 [pid 5202] <... write resumed>) = 2097152 ./strace-static-x86_64: Process 5207 attached [pid 5202] munmap(0x7ff7eb000000, 138412032 [pid 5207] set_robust_list(0x555555ee9660, 24 [pid 5203] memfd_create("syzkaller", 0 [pid 5207] <... set_robust_list resumed>) = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5207] setpgid(0, 0) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5202] <... munmap resumed>) = 0 [pid 5207] write(3, "1000", 4 [pid 5203] <... memfd_create resumed>) = 5 [pid 5207] <... write resumed>) = 4 [pid 5207] close(3) = 0 [pid 5207] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5207] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5207] sendfile(4, 3, [88] [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5202] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5203] <... mmap resumed>) = 0x7ff7eb000000 [pid 5202] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 69.255158][ T5203] syz-executor400 (5203): drop_caches: 1 [pid 5202] close(5) = 0 [pid 5202] creat("./file1", 000) = 5 [pid 5202] exit_group(0) = ? [pid 5204] <... sendfile resumed> => [95], 7) = 7 [pid 5203] 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 5202] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5208 attached [pid 5208] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5208 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] memfd_create("syzkaller", 0 [pid 5203] <... write resumed>) = 2097152 [pid 5208] <... prctl resumed>) = 0 [pid 5204] <... memfd_create resumed>) = 5 [pid 5203] munmap(0x7ff7eb000000, 138412032 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5205] <... sendfile resumed> => [95], 7) = 7 [pid 5208] setpgid(0, 0 [pid 5206] <... sendfile resumed> => [95], 7) = 7 [pid 5203] <... munmap resumed>) = 0 [pid 5208] <... setpgid resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5205] memfd_create("syzkaller", 0 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] <... memfd_create resumed>) = 5 [pid 5203] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5206] memfd_create("syzkaller", 0 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5208] <... openat resumed>) = 3 [pid 5206] <... memfd_create resumed>) = 5 [pid 5205] <... mmap resumed>) = 0x7ff7eb000000 [pid 5203] close(5 [pid 5208] write(3, "1000", 4 [pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5208] <... write resumed>) = 4 [pid 5206] <... mmap resumed>) = 0x7ff7eb000000 [pid 5208] close(3) = 0 [ 69.357891][ T5204] syz-executor400 (5204): drop_caches: 1 [ 69.376334][ T5205] syz-executor400 (5205): drop_caches: 1 [ 69.385154][ T5206] syz-executor400 (5206): drop_caches: 1 [pid 5208] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5204] 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 5208] <... openat resumed>) = 3 [pid 5208] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5208] sendfile(4, 3, [88] [pid 5206] 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 5203] <... close resumed>) = 0 [pid 5203] creat("./file1", 000 [pid 5205] 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 5207] <... sendfile resumed> => [95], 7) = 7 [pid 5206] <... write resumed>) = 2097152 [pid 5204] <... write resumed>) = 2097152 [pid 5203] <... creat resumed>) = 5 [pid 5204] munmap(0x7ff7eb000000, 138412032 [pid 5203] exit_group(0 [pid 5204] <... munmap resumed>) = 0 [pid 5203] <... exit_group resumed>) = ? [pid 5205] <... write resumed>) = 2097152 [pid 5203] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5205] munmap(0x7ff7eb000000, 138412032 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5206] munmap(0x7ff7eb000000, 138412032 [pid 5205] <... munmap resumed>) = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5206] <... munmap resumed>) = 0 [pid 5204] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5206] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5204] close(5 [pid 5207] memfd_create("syzkaller", 0) = 5 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5209 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5205] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5207] <... mmap resumed>) = 0x7ff7eb000000 [pid 5205] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5205] close(5./strace-static-x86_64: Process 5209 attached [pid 5206] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5204] <... close resumed>) = 0 [pid 5206] close(5 [pid 5209] set_robust_list(0x555555ee9660, 24) = 0 [pid 5204] creat("./file1", 000 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] <... creat resumed>) = 5 [pid 5209] <... prctl resumed>) = 0 [pid 5209] setpgid(0, 0 [pid 5204] exit_group(0 [pid 5209] <... setpgid resumed>) = 0 [pid 5204] <... exit_group resumed>) = ? [ 69.497172][ T5207] syz-executor400 (5207): drop_caches: 1 [pid 5204] +++ exited with 0 +++ [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5209] <... openat resumed>) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5209] close(3 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5209] <... close resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5209] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5210 [pid 5209] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5210 attached [pid 5209] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5205] <... close resumed>) = 0 [pid 5210] set_robust_list(0x555555ee9660, 24 [pid 5209] <... openat resumed>) = 4 [pid 5207] 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 5206] <... close resumed>) = 0 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5209] sendfile(4, 3, [88] [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5205] creat("./file1", 000) = 5 [pid 5205] exit_group(0) = ? [pid 5206] creat("./file1", 000 [pid 5205] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5207] <... write resumed>) = 2097152 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5211 ./strace-static-x86_64: Process 5211 attached [pid 5211] set_robust_list(0x555555ee9660, 24) = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0 [pid 5207] munmap(0x7ff7eb000000, 138412032 [pid 5211] <... setpgid resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5210] <... prctl resumed>) = 0 [pid 5207] <... munmap resumed>) = 0 [pid 5206] <... creat resumed>) = 5 [pid 5206] exit_group(0 [pid 5210] setpgid(0, 0) = 0 [pid 5208] <... sendfile resumed> => [95], 7) = 7 [pid 5206] <... exit_group resumed>) = ? [pid 5211] <... openat resumed>) = 3 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5206] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5210] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5210] write(3, "1000", 4 [pid 5208] memfd_create("syzkaller", 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5211] <... openat resumed>) = 3 [pid 5210] <... write resumed>) = 4 [pid 5208] <... memfd_create resumed>) = 5 [pid 5211] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5210] close(3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] <... openat resumed>) = 4 [pid 5210] <... close resumed>) = 0 ./strace-static-x86_64: Process 5212 attached [pid 5211] sendfile(4, 3, [88] [pid 5208] <... mmap resumed>) = 0x7ff7eb000000 [pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5212] set_robust_list(0x555555ee9660, 24 [pid 5210] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5207] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5207] close(5 [pid 5210] <... openat resumed>) = 3 [pid 5212] <... set_robust_list resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5212 [pid 5210] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5210] <... openat resumed>) = 4 [pid 5210] sendfile(4, 3, [88] [pid 5212] <... prctl resumed>) = 0 [pid 5212] setpgid(0, 0) = 0 [ 69.579363][ T5208] syz-executor400 (5208): drop_caches: 1 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5212] write(3, "1000", 4) = 4 [pid 5207] <... close resumed>) = 0 [pid 5207] creat("./file1", 000 [pid 5212] close(3 [pid 5208] 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 5212] <... close resumed>) = 0 [pid 5207] <... creat resumed>) = 5 [pid 5207] exit_group(0) = ? [pid 5212] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5207] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5213 attached [pid 5213] set_robust_list(0x555555ee9660, 24) = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5213 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5212] <... openat resumed>) = 3 [pid 5213] close(3) = 0 [pid 5213] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5213] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5213] sendfile(4, 3, [88] [pid 5212] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5212] sendfile(4, 3, [88] [pid 5208] <... write resumed>) = 2097152 [pid 5208] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5208] close(5) = 0 [pid 5209] <... sendfile resumed> => [95], 7) = 7 [pid 5208] creat("./file1", 000) = 5 [pid 5208] exit_group(0) = ? [pid 5208] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5209] memfd_create("syzkaller", 0 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5209] <... memfd_create resumed>) = 5 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5214 ./strace-static-x86_64: Process 5214 attached [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5214] set_robust_list(0x555555ee9660, 24) = 0 [pid 5209] <... mmap resumed>) = 0x7ff7eb000000 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] <... sendfile resumed> => [95], 7) = 7 [pid 5211] memfd_create("syzkaller", 0) = 5 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5214] <... prctl resumed>) = 0 [pid 5214] setpgid(0, 0) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5210] <... sendfile resumed> => [95], 7) = 7 [pid 5214] write(3, "1000", 4) = 4 [pid 5210] memfd_create("syzkaller", 0 [pid 5209] 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 5214] close(3 [pid 5210] <... memfd_create resumed>) = 5 [pid 5214] <... close resumed>) = 0 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5214] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5210] <... mmap resumed>) = 0x7ff7eb000000 [pid 5214] <... openat resumed>) = 3 [ 69.787013][ T5209] syz-executor400 (5209): drop_caches: 1 [ 69.802950][ T5211] syz-executor400 (5211): drop_caches: 1 [ 69.822085][ T5210] syz-executor400 (5210): drop_caches: 1 [pid 5214] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5214] sendfile(4, 3, [88] [pid 5211] 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 5213] <... sendfile resumed> => [95], 7) = 7 [pid 5210] 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 5213] memfd_create("syzkaller", 0) = 5 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5209] <... write resumed>) = 2097152 [pid 5212] <... sendfile resumed> => [95], 7) = 7 [pid 5212] memfd_create("syzkaller", 0) = 5 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5210] <... write resumed>) = 2097152 [pid 5209] munmap(0x7ff7eb000000, 138412032 [pid 5211] <... write resumed>) = 2097152 [ 69.885104][ T5213] syz-executor400 (5213): drop_caches: 1 [ 69.892379][ T5212] syz-executor400 (5212): drop_caches: 1 [pid 5211] munmap(0x7ff7eb000000, 138412032 [pid 5213] 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 5211] <... munmap resumed>) = 0 [pid 5210] munmap(0x7ff7eb000000, 138412032 [pid 5209] <... munmap resumed>) = 0 [pid 5209] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5210] <... munmap resumed>) = 0 [pid 5209] close(5 [pid 5210] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5211] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5211] close(5 [pid 5210] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5210] close(5 [pid 5212] 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 5211] <... close resumed>) = 0 [pid 5209] <... close resumed>) = 0 [pid 5211] creat("./file1", 000 [pid 5209] creat("./file1", 000 [pid 5211] <... creat resumed>) = 5 [pid 5209] <... creat resumed>) = 5 [pid 5209] exit_group(0 [pid 5210] <... close resumed>) = 0 [pid 5210] creat("./file1", 000 [pid 5213] <... write resumed>) = 2097152 [pid 5210] <... creat resumed>) = 5 [pid 5211] exit_group(0 [pid 5210] exit_group(0 [pid 5211] <... exit_group resumed>) = ? [pid 5210] <... exit_group resumed>) = ? [pid 5209] <... exit_group resumed>) = ? [pid 5213] munmap(0x7ff7eb000000, 138412032 [pid 5212] <... write resumed>) = 2097152 [pid 5210] +++ exited with 0 +++ [pid 5209] +++ exited with 0 +++ [pid 5211] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5062] <... restart_syscall resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] <... restart_syscall resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5216 attached ./strace-static-x86_64: Process 5215 attached [pid 5214] <... sendfile resumed> => [95], 7) = 7 [pid 5213] <... munmap resumed>) = 0 [pid 5212] munmap(0x7ff7eb000000, 138412032 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5215 [pid 5216] set_robust_list(0x555555ee9660, 24 [pid 5215] set_robust_list(0x555555ee9660, 24 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5216 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] close(5 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5216] setpgid(0, 0 [pid 5214] memfd_create("syzkaller", 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5216] <... setpgid resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5216] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5217 attached [pid 5216] close(3 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5217 [pid 5217] set_robust_list(0x555555ee9660, 24 [pid 5216] <... close resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5214] <... memfd_create resumed>) = 5 [pid 5216] <... openat resumed>) = 3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5212] <... munmap resumed>) = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5217] <... set_robust_list resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5216] <... openat resumed>) = 4 [pid 5216] sendfile(4, 3, [88] [pid 5217] <... prctl resumed>) = 0 [pid 5217] setpgid(0, 0 [pid 5215] <... prctl resumed>) = 0 [pid 5214] <... mmap resumed>) = 0x7ff7eb000000 [pid 5212] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5217] <... setpgid resumed>) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5212] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5217] <... openat resumed>) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5212] close(5 [pid 5215] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5217] sendfile(4, 3, [88] [pid 5215] <... openat resumed>) = 3 [pid 5215] write(3, "1000", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5215] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5215] sendfile(4, 3, [88] [pid 5213] <... close resumed>) = 0 [pid 5213] creat("./file1", 000) = 5 [pid 5213] exit_group(0) = ? [ 70.011285][ T5214] syz-executor400 (5214): drop_caches: 1 [pid 5212] <... close resumed>) = 0 [pid 5213] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5214] 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 5212] creat("./file1", 000 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] <... creat resumed>) = 5 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5212] exit_group(0) = ? [pid 5212] +++ exited with 0 +++ ./strace-static-x86_64: Process 5218 attached [pid 5218] set_robust_list(0x555555ee9660, 24) = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5218 [pid 5218] <... openat resumed>) = 3 [pid 5218] write(3, "1000", 4) = 4 [pid 5218] close(3) = 0 [pid 5218] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5218] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5218] sendfile(4, 3, [88] [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 5214] <... write resumed>) = 2097152 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached [pid 5219] set_robust_list(0x555555ee9660, 24) = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5214] munmap(0x7ff7eb000000, 138412032 [pid 5219] setpgid(0, 0 [pid 5214] <... munmap resumed>) = 0 [pid 5219] <... setpgid resumed>) = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5219 [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [pid 5219] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5219] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5214] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5219] <... openat resumed>) = 4 [pid 5214] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5219] sendfile(4, 3, [88] [pid 5214] close(5) = 0 [pid 5214] creat("./file1", 000) = 5 [pid 5214] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5220 attached [pid 5220] set_robust_list(0x555555ee9660, 24) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5220 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5220] setpgid(0, 0) = 0 [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1000", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5220] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5220] sendfile(4, 3, [88] [pid 5215] <... sendfile resumed> => [95], 7) = 7 [pid 5215] memfd_create("syzkaller", 0) = 5 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] <... sendfile resumed> => [95], 7) = 7 [pid 5215] <... mmap resumed>) = 0x7ff7eb000000 [pid 5217] <... sendfile resumed> => [95], 7) = 7 [pid 5216] memfd_create("syzkaller", 0 [pid 5217] memfd_create("syzkaller", 0 [pid 5216] <... memfd_create resumed>) = 5 [pid 5217] <... memfd_create resumed>) = 5 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] <... mmap resumed>) = 0x7ff7eb000000 [pid 5217] <... mmap resumed>) = 0x7ff7eb000000 [ 70.222220][ T5217] syz-executor400 (5217): drop_caches: 1 [ 70.230513][ T5216] syz-executor400 (5216): drop_caches: 1 [ 70.231794][ T5215] syz-executor400 (5215): drop_caches: 1 [pid 5215] 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 5217] 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 5216] 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 5215] <... write resumed>) = 2097152 [pid 5218] <... sendfile resumed> => [95], 7) = 7 [pid 5215] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5218] memfd_create("syzkaller", 0 [pid 5215] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 70.301807][ T5218] syz-executor400 (5218): drop_caches: 1 [ 70.341415][ T5219] syz-executor400 (5219): drop_caches: 1 [pid 5215] close(5 [pid 5220] <... sendfile resumed> => [95], 7) = 7 [pid 5216] <... write resumed>) = 2097152 [pid 5219] <... sendfile resumed> => [95], 7) = 7 [pid 5218] <... memfd_create resumed>) = 5 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5219] memfd_create("syzkaller", 0 [pid 5217] <... write resumed>) = 2097152 [pid 5216] munmap(0x7ff7eb000000, 138412032 [pid 5215] <... close resumed>) = 0 [pid 5219] <... memfd_create resumed>) = 5 [pid 5217] munmap(0x7ff7eb000000, 138412032 [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5216] <... munmap resumed>) = 0 [pid 5215] creat("./file1", 000 [pid 5217] <... munmap resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5215] <... creat resumed>) = 5 [pid 5217] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5215] exit_group(0 [pid 5220] memfd_create("syzkaller", 0 [pid 5217] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5216] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5215] <... exit_group resumed>) = ? [pid 5217] close(5 [pid 5216] close(5 [pid 5220] <... memfd_create resumed>) = 5 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5215] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5218] 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 5217] <... close resumed>) = 0 [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5221 ./strace-static-x86_64: Process 5221 attached [ 70.364695][ T5220] syz-executor400 (5220): drop_caches: 1 [pid 5221] set_robust_list(0x555555ee9660, 24) = 0 [pid 5220] 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 5217] creat("./file1", 000 [pid 5216] <... close resumed>) = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] 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 5217] <... creat resumed>) = 5 [pid 5216] creat("./file1", 000 [pid 5221] setpgid(0, 0 [pid 5217] exit_group(0 [pid 5221] <... setpgid resumed>) = 0 [pid 5217] <... exit_group resumed>) = ? [pid 5216] <... creat resumed>) = 5 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3 [pid 5217] +++ exited with 0 +++ [pid 5216] exit_group(0 [pid 5221] <... close resumed>) = 0 [pid 5216] <... exit_group resumed>) = ? [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5222 attached [pid 5221] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5222] set_robust_list(0x555555ee9660, 24 [pid 5221] <... openat resumed>) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5222 [pid 5222] <... set_robust_list resumed>) = 0 [pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5221] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5222] <... prctl resumed>) = 0 [pid 5216] +++ exited with 0 +++ [pid 5222] setpgid(0, 0 [pid 5221] <... openat resumed>) = 4 [pid 5222] <... setpgid resumed>) = 0 [pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5221] sendfile(4, 3, [88] [pid 5222] <... openat resumed>) = 3 [pid 5222] write(3, "1000", 4) = 4 [pid 5222] close(3 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5222] <... close resumed>) = 0 [pid 5222] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5222] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5222] sendfile(4, 3, [88] [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5218] <... write resumed>) = 2097152 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5223 ./strace-static-x86_64: Process 5223 attached [pid 5218] munmap(0x7ff7eb000000, 138412032 [pid 5223] set_robust_list(0x555555ee9660, 24) = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5220] <... write resumed>) = 2097152 [pid 5219] <... write resumed>) = 2097152 [pid 5218] <... munmap resumed>) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5220] munmap(0x7ff7eb000000, 138412032 [pid 5218] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5218] close(5 [pid 5220] <... munmap resumed>) = 0 [pid 5220] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5220] close(5 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] munmap(0x7ff7eb000000, 138412032 [pid 5218] <... close resumed>) = 0 [pid 5223] <... openat resumed>) = 3 [pid 5219] <... munmap resumed>) = 0 [pid 5223] write(3, "1000", 4 [pid 5219] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5218] creat("./file1", 000 [pid 5223] <... write resumed>) = 4 [pid 5219] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5223] close(3 [pid 5219] close(5 [pid 5218] <... creat resumed>) = 5 [pid 5223] <... close resumed>) = 0 [pid 5223] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5218] exit_group(0 [pid 5223] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5218] <... exit_group resumed>) = ? [pid 5223] <... openat resumed>) = 4 [pid 5219] <... close resumed>) = 0 [pid 5220] <... close resumed>) = 0 [pid 5220] creat("./file1", 000 [pid 5223] sendfile(4, 3, [88] [pid 5220] <... creat resumed>) = 5 [pid 5220] exit_group(0) = ? [pid 5220] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5218] +++ exited with 0 +++ [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5224 attached [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5224] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5224 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5224] <... set_robust_list resumed>) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] <... restart_syscall resumed>) = 0 [pid 5224] <... prctl resumed>) = 0 [pid 5224] setpgid(0, 0 [pid 5219] creat("./file1", 000 [pid 5224] <... setpgid resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] write(3, "1000", 4 [pid 5219] <... creat resumed>) = 5 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5224] <... write resumed>) = 4 [pid 5219] exit_group(0 [pid 5224] close(3./strace-static-x86_64: Process 5225 attached ) = 0 [pid 5219] <... exit_group resumed>) = ? [pid 5225] set_robust_list(0x555555ee9660, 24 [pid 5224] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5225 [pid 5225] <... set_robust_list resumed>) = 0 [pid 5219] +++ exited with 0 +++ [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5224] <... openat resumed>) = 3 [pid 5224] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5224] sendfile(4, 3, [88] [pid 5067] <... restart_syscall resumed>) = 0 [pid 5225] <... prctl resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5226 attached [pid 5225] setpgid(0, 0 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5226 [pid 5226] set_robust_list(0x555555ee9660, 24) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] <... setpgid resumed>) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] <... prctl resumed>) = 0 [pid 5225] <... openat resumed>) = 3 [pid 5226] setpgid(0, 0 [pid 5225] write(3, "1000", 4 [pid 5226] <... setpgid resumed>) = 0 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5225] <... write resumed>) = 4 [pid 5226] <... openat resumed>) = 3 [pid 5225] close(3 [pid 5226] write(3, "1000", 4 [pid 5225] <... close resumed>) = 0 [pid 5221] <... sendfile resumed> => [95], 7) = 7 [pid 5226] <... write resumed>) = 4 [pid 5225] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5225] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5226] close(3 [pid 5221] memfd_create("syzkaller", 0 [pid 5226] <... close resumed>) = 0 [pid 5225] sendfile(4, 3, [88] [pid 5226] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5222] <... sendfile resumed> => [95], 7) = 7 [pid 5226] <... openat resumed>) = 3 [pid 5222] memfd_create("syzkaller", 0 [pid 5221] <... memfd_create resumed>) = 5 [pid 5226] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5222] <... memfd_create resumed>) = 5 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5221] <... mmap resumed>) = 0x7ff7eb000000 [pid 5226] <... openat resumed>) = 4 [ 70.599457][ T5221] syz-executor400 (5221): drop_caches: 1 [ 70.603022][ T5222] syz-executor400 (5222): drop_caches: 1 [pid 5226] sendfile(4, 3, [88] [pid 5222] 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 5221] 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 5222] <... write resumed>) = 2097152 [pid 5223] <... sendfile resumed> => [95], 7) = 7 [pid 5223] memfd_create("syzkaller", 0 [pid 5222] munmap(0x7ff7eb000000, 138412032 [pid 5221] <... write resumed>) = 2097152 [pid 5223] <... memfd_create resumed>) = 5 [pid 5222] <... munmap resumed>) = 0 [pid 5221] munmap(0x7ff7eb000000, 138412032 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5222] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5223] <... mmap resumed>) = 0x7ff7eb000000 [pid 5222] close(5 [pid 5221] <... munmap resumed>) = 0 [pid 5224] <... sendfile resumed> => [95], 7) = 7 [pid 5224] memfd_create("syzkaller", 0 [pid 5221] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5222] <... close resumed>) = 0 [pid 5221] close(5 [pid 5224] <... memfd_create resumed>) = 5 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5222] creat("./file1", 000) = 5 [pid 5222] exit_group(0) = ? [pid 5222] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [ 70.681259][ T5223] syz-executor400 (5223): drop_caches: 1 [ 70.716076][ T5224] syz-executor400 (5224): drop_caches: 1 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5224] 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 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5227 [pid 5227] set_robust_list(0x555555ee9660, 24 [pid 5223] 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 5227] <... set_robust_list resumed>) = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] <... close resumed>) = 0 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5227] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5227] sendfile(4, 3, [88] [pid 5221] creat("./file1", 000 [pid 5225] <... sendfile resumed> => [95], 7) = 7 [pid 5223] <... write resumed>) = 2097152 [pid 5221] <... creat resumed>) = 5 [pid 5221] exit_group(0 [pid 5223] munmap(0x7ff7eb000000, 138412032 [pid 5221] <... exit_group resumed>) = ? [pid 5225] memfd_create("syzkaller", 0 [pid 5221] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 70.774201][ T5225] syz-executor400 (5225): drop_caches: 1 [pid 5225] <... memfd_create resumed>) = 5 [pid 5224] <... write resumed>) = 2097152 [pid 5223] <... munmap resumed>) = 0 [pid 5226] <... sendfile resumed> => [95], 7) = 7 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5224] munmap(0x7ff7eb000000, 138412032 [pid 5223] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5225] <... mmap resumed>) = 0x7ff7eb000000 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5223] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached [pid 5223] close(5 [pid 5228] set_robust_list(0x555555ee9660, 24) = 0 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5228] setpgid(0, 0) = 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5228 [pid 5228] <... openat resumed>) = 3 [pid 5228] write(3, "1000", 4) = 4 [pid 5228] close(3 [pid 5226] memfd_create("syzkaller", 0 [pid 5228] <... close resumed>) = 0 [pid 5228] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5228] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5228] sendfile(4, 3, [88] [pid 5224] <... munmap resumed>) = 0 [pid 5226] <... memfd_create resumed>) = 5 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5224] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5225] 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 5224] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5223] <... close resumed>) = 0 [ 70.822772][ T5226] syz-executor400 (5226): drop_caches: 1 [pid 5224] close(5 [pid 5223] creat("./file1", 000) = 5 [pid 5223] exit_group(0) = ? [pid 5223] +++ exited with 0 +++ [pid 5224] <... close resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5224] creat("./file1", 000 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5226] 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 5224] <... creat resumed>) = 5 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] exit_group(0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached [pid 5224] <... exit_group resumed>) = ? [pid 5229] set_robust_list(0x555555ee9660, 24 [pid 5224] +++ exited with 0 +++ [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5229 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5229] <... set_robust_list resumed>) = 0 [pid 5225] <... write resumed>) = 2097152 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] munmap(0x7ff7eb000000, 138412032 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5229] <... prctl resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5230 attached , child_tidptr=0x555555ee9650) = 5230 [pid 5230] set_robust_list(0x555555ee9660, 24) = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] setpgid(0, 0 [pid 5225] <... munmap resumed>) = 0 [pid 5229] setpgid(0, 0 [pid 5230] <... setpgid resumed>) = 0 [pid 5229] <... setpgid resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5230] <... openat resumed>) = 3 [pid 5229] <... openat resumed>) = 3 [pid 5230] write(3, "1000", 4 [pid 5229] write(3, "1000", 4 [pid 5225] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5230] <... write resumed>) = 4 [pid 5229] <... write resumed>) = 4 [pid 5225] close(5 [pid 5230] close(3 [pid 5229] close(3 [pid 5230] <... close resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5229] <... close resumed>) = 0 [pid 5230] <... openat resumed>) = 3 [pid 5230] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5229] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5230] sendfile(4, 3, [88] [pid 5229] <... openat resumed>) = 3 [pid 5229] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5229] sendfile(4, 3, [88] [pid 5227] <... sendfile resumed> => [95], 7) = 7 [pid 5226] <... write resumed>) = 2097152 [pid 5226] munmap(0x7ff7eb000000, 138412032 [pid 5227] memfd_create("syzkaller", 0 [pid 5226] <... munmap resumed>) = 0 [pid 5225] <... close resumed>) = 0 [pid 5227] <... memfd_create resumed>) = 5 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5225] creat("./file1", 000 [pid 5226] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5227] <... mmap resumed>) = 0x7ff7eb000000 [pid 5226] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5226] close(5 [pid 5225] <... creat resumed>) = 5 [ 70.947823][ T5227] syz-executor400 (5227): drop_caches: 1 [pid 5225] exit_group(0) = ? [pid 5227] 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 5226] <... close resumed>) = 0 [pid 5225] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached [pid 5231] set_robust_list(0x555555ee9660, 24 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5231 [pid 5231] <... set_robust_list resumed>) = 0 [pid 5226] creat("./file1", 000 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] <... creat resumed>) = 5 [pid 5231] <... prctl resumed>) = 0 [pid 5226] exit_group(0 [pid 5231] setpgid(0, 0 [pid 5226] <... exit_group resumed>) = ? [pid 5231] <... setpgid resumed>) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] +++ exited with 0 +++ [pid 5231] <... openat resumed>) = 3 [pid 5231] write(3, "1000", 4 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5231] <... write resumed>) = 4 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5231] close(3 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5231] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5232 ./strace-static-x86_64: Process 5232 attached [pid 5231] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5232] set_robust_list(0x555555ee9660, 24 [pid 5231] <... openat resumed>) = 4 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5231] sendfile(4, 3, [88] [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5232] setpgid(0, 0) = 0 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5232] write(3, "1000", 4) = 4 [pid 5232] close(3) = 0 [pid 5232] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5232] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5232] sendfile(4, 3, [88] [pid 5227] <... write resumed>) = 2097152 [pid 5227] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5227] close(5 [pid 5229] <... sendfile resumed> => [95], 7) = 7 [pid 5228] <... sendfile resumed> => [95], 7) = 7 [pid 5228] memfd_create("syzkaller", 0) = 5 [pid 5227] <... close resumed>) = 0 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5227] creat("./file1", 000) = 5 [pid 5228] <... mmap resumed>) = 0x7ff7eb000000 [pid 5229] memfd_create("syzkaller", 0) = 5 [pid 5227] exit_group(0 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5227] <... exit_group resumed>) = ? [ 71.052750][ T5228] syz-executor400 (5228): drop_caches: 1 [ 71.087283][ T5229] syz-executor400 (5229): drop_caches: 1 [pid 5229] <... mmap resumed>) = 0x7ff7eb000000 [pid 5227] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x555555ee9660, 24 [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5233 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] 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 5233] <... prctl resumed>) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] 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 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5230] <... sendfile resumed> => [95], 7) = 7 [pid 5233] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5230] memfd_create("syzkaller", 0 [pid 5233] <... openat resumed>) = 3 [pid 5233] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5230] <... memfd_create resumed>) = 5 [pid 5233] <... openat resumed>) = 4 [pid 5233] sendfile(4, 3, [88] [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5229] <... write resumed>) = 2097152 [ 71.143356][ T5230] syz-executor400 (5230): drop_caches: 1 [pid 5228] <... write resumed>) = 2097152 [pid 5228] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5228] close(5) = 0 [pid 5228] creat("./file1", 000) = 5 [pid 5228] exit_group(0) = ? [pid 5228] +++ exited with 0 +++ [pid 5229] munmap(0x7ff7eb000000, 138412032 [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5234 ./strace-static-x86_64: Process 5234 attached [pid 5230] 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 5229] <... munmap resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5234] set_robust_list(0x555555ee9660, 24) = 0 [pid 5231] <... sendfile resumed> => [95], 7) = 7 [pid 5231] memfd_create("syzkaller", 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] <... memfd_create resumed>) = 5 [pid 5234] setpgid(0, 0) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5234] <... openat resumed>) = 3 [pid 5229] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5234] write(3, "1000", 4 [pid 5229] close(5 [pid 5234] <... write resumed>) = 4 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5231] <... mmap resumed>) = 0x7ff7eb000000 [pid 5230] <... write resumed>) = 2097152 [pid 5234] <... openat resumed>) = 3 [pid 5229] <... close resumed>) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5232] <... sendfile resumed> => [95], 7) = 7 [pid 5232] memfd_create("syzkaller", 0) = 5 [ 71.203201][ T5231] syz-executor400 (5231): drop_caches: 1 [ 71.241722][ T5232] syz-executor400 (5232): drop_caches: 1 [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5234] sendfile(4, 3, [88] [pid 5230] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5230] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5230] close(5 [pid 5229] creat("./file1", 000) = 5 [pid 5232] 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 5229] exit_group(0) = ? [pid 5230] <... close resumed>) = 0 [pid 5231] 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 5229] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5236 attached [pid 5236] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5236 [pid 5236] <... set_robust_list resumed>) = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setpgid(0, 0) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1000", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5236] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5236] sendfile(4, 3, [88] [pid 5231] <... write resumed>) = 2097152 [pid 5230] creat("./file1", 000) = 5 [pid 5230] exit_group(0) = ? [pid 5230] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached [pid 5237] set_robust_list(0x555555ee9660, 24) = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5237 [pid 5237] <... setpgid resumed>) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5237] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5237] sendfile(4, 3, [88] [pid 5231] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5232] <... write resumed>) = 2097152 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5232] munmap(0x7ff7eb000000, 138412032 [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5231] close(5 [pid 5232] <... munmap resumed>) = 0 [pid 5231] <... close resumed>) = 0 [pid 5232] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5232] close(5 [pid 5231] creat("./file1", 000 [pid 5233] <... sendfile resumed> => [95], 7) = 7 [pid 5231] <... creat resumed>) = 5 [pid 5231] exit_group(0) = ? [pid 5233] memfd_create("syzkaller", 0 [pid 5232] <... close resumed>) = 0 [pid 5231] +++ exited with 0 +++ [pid 5233] <... memfd_create resumed>) = 5 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] creat("./file1", 000 [pid 5233] <... mmap resumed>) = 0x7ff7eb000000 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 71.431766][ T5233] syz-executor400 (5233): drop_caches: 1 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5238 attached [pid 5236] <... sendfile resumed> => [95], 7) = 7 [pid 5232] <... creat resumed>) = 5 [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5238 [pid 5232] exit_group(0) = ? [pid 5238] set_robust_list(0x555555ee9660, 24 [pid 5236] memfd_create("syzkaller", 0 [pid 5232] +++ exited with 0 +++ [pid 5238] <... set_robust_list resumed>) = 0 [pid 5236] <... memfd_create resumed>) = 5 [pid 5234] <... sendfile resumed> => [95], 7) = 7 [pid 5233] 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 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] setpgid(0, 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5238] <... setpgid resumed>) = 0 [pid 5236] <... mmap resumed>) = 0x7ff7eb000000 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5238] 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./strace-static-x86_64: Process 5239 attached [pid 5238] <... openat resumed>) = 3 [pid 5239] set_robust_list(0x555555ee9660, 24 [pid 5238] write(3, "1000", 4 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5239 [pid 5239] <... set_robust_list resumed>) = 0 [pid 5238] <... write resumed>) = 4 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] close(3) = 0 [pid 5239] <... prctl resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5239] setpgid(0, 0 [pid 5238] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5239] <... setpgid resumed>) = 0 [pid 5238] <... openat resumed>) = 4 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] sendfile(4, 3, [88] [pid 5239] <... openat resumed>) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5239] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 71.487583][ T5236] syz-executor400 (5236): drop_caches: 1 [ 71.489812][ T5234] syz-executor400 (5234): drop_caches: 1 [pid 5239] sendfile(4, 3, [88] [pid 5237] <... sendfile resumed> => [95], 7) = 7 [pid 5234] memfd_create("syzkaller", 0) = 5 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5237] memfd_create("syzkaller", 0 [pid 5236] 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 5233] <... write resumed>) = 2097152 [pid 5233] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5237] <... memfd_create resumed>) = 5 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5234] 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 5233] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 71.527932][ T5237] syz-executor400 (5237): drop_caches: 1 [pid 5233] close(5 [pid 5236] <... write resumed>) = 2097152 [pid 5237] 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 5236] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5233] <... close resumed>) = 0 [pid 5237] <... write resumed>) = 2097152 [pid 5236] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5234] <... write resumed>) = 2097152 [pid 5233] creat("./file1", 000 [pid 5234] munmap(0x7ff7eb000000, 138412032 [pid 5233] <... creat resumed>) = 5 [pid 5233] exit_group(0) = ? [pid 5237] munmap(0x7ff7eb000000, 138412032 [pid 5236] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5234] <... munmap resumed>) = 0 [pid 5237] <... munmap resumed>) = 0 [pid 5236] close(5 [pid 5234] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5233] +++ exited with 0 +++ [pid 5237] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5234] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5237] close(5 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5238] <... sendfile resumed> => [95], 7) = 7 [pid 5239] <... sendfile resumed> => [95], 7) = 7 [pid 5237] <... close resumed>) = 0 [pid 5236] <... close resumed>) = 0 [pid 5234] close(5 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5239] memfd_create("syzkaller", 0 [pid 5237] creat("./file1", 000 [pid 5236] creat("./file1", 000) = 5 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5236] exit_group(0 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5240 attached [pid 5238] memfd_create("syzkaller", 0 [pid 5237] <... creat resumed>) = 5 [pid 5236] <... exit_group resumed>) = ? [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5240 [pid 5240] set_robust_list(0x555555ee9660, 24 [pid 5239] <... memfd_create resumed>) = 5 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5240] <... set_robust_list resumed>) = 0 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5238] <... memfd_create resumed>) = 5 [pid 5240] setpgid(0, 0 [pid 5237] exit_group(0 [pid 5240] <... setpgid resumed>) = 0 [pid 5237] <... exit_group resumed>) = ? [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] +++ exited with 0 +++ [pid 5234] <... close resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5240] <... openat resumed>) = 3 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5236] +++ exited with 0 +++ [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- ./strace-static-x86_64: Process 5241 attached [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5241 [pid 5240] write(3, "1000", 4 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5240] <... write resumed>) = 4 [pid 5241] set_robust_list(0x555555ee9660, 24 [pid 5240] close(3 [pid 5241] <... set_robust_list resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... close resumed>) = 0 [pid 5241] <... prctl resumed>) = 0 [pid 5238] 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 5234] creat("./file1", 000 [pid 5241] setpgid(0, 0 [pid 5240] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5241] <... setpgid resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 71.657059][ T5238] syz-executor400 (5238): drop_caches: 1 [ 71.662692][ T5239] syz-executor400 (5239): drop_caches: 1 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] 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 5242 attached [pid 5241] <... openat resumed>) = 3 [pid 5240] <... openat resumed>) = 3 [pid 5238] <... write resumed>) = 2097152 [pid 5234] <... creat resumed>) = 5 [pid 5242] set_robust_list(0x555555ee9660, 24 [pid 5241] write(3, "1000", 4 [pid 5240] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5238] munmap(0x7ff7eb000000, 138412032 [pid 5242] <... set_robust_list resumed>) = 0 [pid 5241] <... write resumed>) = 4 [pid 5240] <... openat resumed>) = 4 [pid 5234] exit_group(0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] close(3 [pid 5240] sendfile(4, 3, [88] [pid 5234] <... exit_group resumed>) = ? [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5242 [pid 5241] <... close resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5242] <... prctl resumed>) = 0 [pid 5242] setpgid(0, 0 [pid 5241] <... openat resumed>) = 3 [pid 5242] <... setpgid resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] <... openat resumed>) = 4 [pid 5242] <... openat resumed>) = 3 [pid 5238] <... munmap resumed>) = 0 [pid 5234] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5241] sendfile(4, 3, [88] [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5242] write(3, "1000", 4) = 4 [pid 5239] <... write resumed>) = 2097152 [pid 5238] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5243 ./strace-static-x86_64: Process 5243 attached [pid 5238] close(5 [pid 5243] set_robust_list(0x555555ee9660, 24 [pid 5242] close(3 [pid 5243] <... set_robust_list resumed>) = 0 [pid 5242] <... close resumed>) = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5243] <... prctl resumed>) = 0 [pid 5242] <... openat resumed>) = 3 [pid 5239] munmap(0x7ff7eb000000, 138412032 [pid 5242] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5243] setpgid(0, 0 [pid 5242] <... openat resumed>) = 4 [pid 5243] <... setpgid resumed>) = 0 [pid 5242] sendfile(4, 3, [88] [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] <... munmap resumed>) = 0 [pid 5238] <... close resumed>) = 0 [pid 5243] <... openat resumed>) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3 [pid 5239] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5238] creat("./file1", 000 [pid 5243] <... close resumed>) = 0 [pid 5239] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5243] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5239] close(5 [pid 5238] <... creat resumed>) = 5 [pid 5243] <... openat resumed>) = 3 [pid 5238] exit_group(0 [pid 5243] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5243] sendfile(4, 3, [88] [pid 5238] <... exit_group resumed>) = ? [pid 5238] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5239] <... close resumed>) = 0 [pid 5239] creat("./file1", 000) = 5 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5244 attached , child_tidptr=0x555555ee9650) = 5244 [pid 5244] set_robust_list(0x555555ee9660, 24) = 0 [pid 5239] exit_group(0 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] <... exit_group resumed>) = ? [pid 5244] <... prctl resumed>) = 0 [pid 5244] setpgid(0, 0) = 0 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5240] <... sendfile resumed> => [95], 7) = 7 [pid 5239] +++ exited with 0 +++ [pid 5244] <... openat resumed>) = 3 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5244] write(3, "1000", 4) = 4 [pid 5244] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5244] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] <... openat resumed>) = 3 [pid 5240] memfd_create("syzkaller", 0 [pid 5244] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5245 ./strace-static-x86_64: Process 5245 attached [pid 5244] <... openat resumed>) = 4 [pid 5240] <... memfd_create resumed>) = 5 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5245] set_robust_list(0x555555ee9660, 24 [pid 5240] <... mmap resumed>) = 0x7ff7eb000000 [pid 5245] <... set_robust_list resumed>) = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5244] sendfile(4, 3, [88] [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5245] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 71.807863][ T5240] syz-executor400 (5240): drop_caches: 1 [pid 5245] sendfile(4, 3, [88] [pid 5240] 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 5240] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5240] close(5 [pid 5242] <... sendfile resumed> => [95], 7) = 7 [pid 5243] <... sendfile resumed> => [95], 7) = 7 [pid 5240] <... close resumed>) = 0 [pid 5242] memfd_create("syzkaller", 0 [pid 5243] memfd_create("syzkaller", 0 [pid 5242] <... memfd_create resumed>) = 5 [pid 5240] creat("./file1", 000 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5240] <... creat resumed>) = 5 [pid 5243] <... memfd_create resumed>) = 5 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 71.964427][ T5243] syz-executor400 (5243): drop_caches: 1 [ 71.979183][ T5242] syz-executor400 (5242): drop_caches: 1 [ 71.990629][ T5241] syz-executor400 (5241): drop_caches: 1 [pid 5240] exit_group(0) = ? [pid 5241] <... sendfile resumed> => [95], 7) = 7 [pid 5241] memfd_create("syzkaller", 0) = 5 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5245] <... sendfile resumed> => [95], 7) = 7 [pid 5244] <... sendfile resumed> => [95], 7) = 7 [pid 5240] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5245] memfd_create("syzkaller", 0 [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5245] <... memfd_create resumed>) = 5 [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5245] <... mmap resumed>) = 0x7ff7eb000000 [pid 5244] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5246 attached [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5246 [pid 5242] 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 5244] <... memfd_create resumed>) = 5 [pid 5246] set_robust_list(0x555555ee9660, 24 [pid 5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5246] <... set_robust_list resumed>) = 0 [pid 5244] <... mmap resumed>) = 0x7ff7eb000000 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] 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 5246] <... openat resumed>) = 3 [pid 5246] write(3, "1000", 4) = 4 [pid 5246] close(3) = 0 [ 72.011068][ T5245] syz-executor400 (5245): drop_caches: 1 [ 72.023439][ T5244] syz-executor400 (5244): drop_caches: 1 [pid 5246] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5241] 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 5246] <... openat resumed>) = 3 [pid 5244] 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 5246] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5246] sendfile(4, 3, [88] [pid 5245] 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 5242] <... write resumed>) = 2097152 [pid 5243] <... write resumed>) = 2097152 [pid 5241] <... write resumed>) = 2097152 [pid 5242] munmap(0x7ff7eb000000, 138412032 [pid 5241] munmap(0x7ff7eb000000, 138412032 [pid 5242] <... munmap resumed>) = 0 [pid 5241] <... munmap resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5241] close(5 [pid 5245] <... write resumed>) = 2097152 [pid 5245] munmap(0x7ff7eb000000, 138412032 [pid 5244] <... write resumed>) = 2097152 [pid 5243] munmap(0x7ff7eb000000, 138412032 [pid 5242] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5242] close(5 [pid 5245] <... munmap resumed>) = 0 [pid 5243] <... munmap resumed>) = 0 [pid 5242] <... close resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5243] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5244] munmap(0x7ff7eb000000, 138412032 [pid 5245] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5244] <... munmap resumed>) = 0 [pid 5243] close(5 [pid 5241] <... close resumed>) = 0 [pid 5245] close(5 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5244] close(5 [pid 5241] creat("./file1", 000) = 5 [pid 5241] exit_group(0) = ? [pid 5241] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5242] creat("./file1", 000 [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5242] <... creat resumed>) = 5 [pid 5059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5242] exit_group(0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5242] <... exit_group resumed>) = ? [pid 5242] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5247 [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5247 attached ./strace-static-x86_64: Process 5248 attached [pid 5248] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5248 [pid 5248] <... set_robust_list resumed>) = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] set_robust_list(0x555555ee9660, 24 [pid 5248] <... prctl resumed>) = 0 [pid 5247] <... set_robust_list resumed>) = 0 [pid 5248] setpgid(0, 0) = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5247] <... prctl resumed>) = 0 [pid 5248] <... openat resumed>) = 3 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5247] write(3, "1000", 4 [pid 5248] write(3, "1000", 4 [pid 5247] <... write resumed>) = 4 [pid 5248] <... write resumed>) = 4 [pid 5247] close(3) = 0 [pid 5247] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5248] close(3) = 0 [pid 5248] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5247] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5245] <... close resumed>) = 0 [pid 5243] <... close resumed>) = 0 [pid 5248] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5243] creat("./file1", 000 [pid 5248] sendfile(4, 3, [88] [pid 5243] <... creat resumed>) = 5 [pid 5247] <... openat resumed>) = 4 [pid 5245] creat("./file1", 000 [pid 5243] exit_group(0 [pid 5247] sendfile(4, 3, [88] [pid 5245] <... creat resumed>) = 5 [pid 5243] <... exit_group resumed>) = ? [pid 5245] exit_group(0) = ? [pid 5243] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5244] <... close resumed>) = 0 [pid 5062] <... restart_syscall resumed>) = 0 [pid 5245] +++ exited with 0 +++ [pid 5244] creat("./file1", 000 [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5249 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5250 attached [pid 5244] <... creat resumed>) = 5 [pid 5250] set_robust_list(0x555555ee9660, 24 [pid 5244] exit_group(0 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5244] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5249 attached [pid 5246] <... sendfile resumed> => [95], 7) = 7 [pid 5249] set_robust_list(0x555555ee9660, 24 [pid 5246] memfd_create("syzkaller", 0 [pid 5249] <... set_robust_list resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5246] <... memfd_create resumed>) = 5 [pid 5249] <... prctl resumed>) = 0 [pid 5250] <... prctl resumed>) = 0 [pid 5249] setpgid(0, 0 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5249] <... setpgid resumed>) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5246] <... mmap resumed>) = 0x7ff7eb000000 [pid 5250] setpgid(0, 0 [pid 5249] <... openat resumed>) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5250 [pid 5250] <... setpgid resumed>) = 0 [pid 5249] write(3, "1000", 4 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5249] <... write resumed>) = 4 [pid 5249] close(3) = 0 [pid 5250] <... openat resumed>) = 3 [pid 5249] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5244] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5249] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5250] write(3, "1000", 4 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5250] <... write resumed>) = 4 [pid 5249] <... openat resumed>) = 4 [pid 5250] close(3 [pid 5249] sendfile(4, 3, [88] [pid 5058] <... restart_syscall resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5250] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5250] sendfile(4, 3, [88] [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ee9650) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5251] set_robust_list(0x555555ee9660, 24) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5246] 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 5251] <... openat resumed>) = 3 [pid 5251] write(3, "1000", 4) = 4 [ 72.216582][ T5246] syz-executor400 (5246): drop_caches: 1 [pid 5251] close(3) = 0 [pid 5251] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5251] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5251] sendfile(4, 3, [88] [pid 5246] <... write resumed>) = 2097152 [pid 5246] munmap(0x7ff7eb000000, 138412032) = 0 [pid 5249] <... sendfile resumed> => [95], 7) = 7 [pid 5247] <... sendfile resumed> => [95], 7) = 7 [pid 5246] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5248] <... sendfile resumed> => [95], 7) = 7 [pid 5246] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5248] memfd_create("syzkaller", 0 [pid 5247] memfd_create("syzkaller", 0 [pid 5246] close(5 [pid 5249] memfd_create("syzkaller", 0) = 5 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5247] <... memfd_create resumed>) = 5 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5250] <... sendfile resumed> => [95], 7) = 7 [pid 5249] <... mmap resumed>) = 0x7ff7eb000000 [pid 5248] <... memfd_create resumed>) = 5 [pid 5246] <... close resumed>) = 0 [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5246] creat("./file1", 000) = 5 [pid 5250] memfd_create("syzkaller", 0) = 5 [pid 5246] exit_group(0 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 72.359800][ T5248] syz-executor400 (5248): drop_caches: 1 [ 72.365878][ T5247] syz-executor400 (5247): drop_caches: 1 [ 72.377287][ T5249] syz-executor400 (5249): drop_caches: 1 [ 72.396817][ T5250] syz-executor400 (5250): drop_caches: 1 [pid 5246] <... exit_group resumed>) = ? [pid 5246] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5247] 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 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5252 attached [pid 5250] 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 5248] 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 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5252 [pid 5252] set_robust_list(0x555555ee9660, 24) = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5252] setpgid(0, 0) = 0 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5252] write(3, "1000", 4) = 4 [pid 5252] close(3) = 0 [pid 5249] 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 5252] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5251] <... sendfile resumed> => [95], 7) = 7 [pid 5251] memfd_create("syzkaller", 0 [pid 5252] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5251] <... memfd_create resumed>) = 5 [pid 5252] <... openat resumed>) = 4 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 72.442404][ T5251] syz-executor400 (5251): drop_caches: 1 [pid 5252] sendfile(4, 3, [88] [pid 5249] <... write resumed>) = 2097152 [pid 5248] <... write resumed>) = 2097152 [pid 5247] <... write resumed>) = 2097152 [pid 5247] munmap(0x7ff7eb000000, 138412032 [pid 5248] munmap(0x7ff7eb000000, 138412032 [pid 5249] munmap(0x7ff7eb000000, 138412032 [pid 5250] <... write resumed>) = 2097152 [pid 5251] 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 5250] munmap(0x7ff7eb000000, 138412032 [pid 5249] <... munmap resumed>) = 0 [pid 5247] <... munmap resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5248] <... munmap resumed>) = 0 [pid 5247] close(5 [pid 5248] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5249] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5248] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5248] close(5 [pid 5249] close(5 [pid 5248] <... close resumed>) = 0 [pid 5247] <... close resumed>) = 0 [pid 5250] <... munmap resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5251] <... write resumed>) = 2097152 [pid 5250] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5249] <... close resumed>) = 0 [pid 5248] creat("./file1", 000 [pid 5247] creat("./file1", 000 [pid 5250] close(5 [pid 5251] munmap(0x7ff7eb000000, 138412032 [pid 5248] <... creat resumed>) = 5 [pid 5247] <... creat resumed>) = 5 [pid 5247] exit_group(0) = ? [pid 5248] exit_group(0 [pid 5247] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5253 attached [pid 5251] <... munmap resumed>) = 0 [pid 5253] set_robust_list(0x555555ee9660, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555ee9650) = 5253 [pid 5253] <... set_robust_list resumed>) = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5248] <... exit_group resumed>) = ? [pid 5253] <... prctl resumed>) = 0 [pid 5251] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5248] +++ exited with 0 +++ [pid 5253] setpgid(0, 0 [pid 5251] close(5 [pid 5253] <... setpgid resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5253] <... openat resumed>) = 3 [pid 5249] creat("./file1", 000 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5253] write(3, "1000", 4 [pid 5250] <... close resumed>) = 0 [pid 5249] <... creat resumed>) = 5 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5253] <... write resumed>) = 4 [pid 5253] close(3) = 0 [pid 5253] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5253] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5253] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] <... openat resumed>) = 4 [pid 5253] sendfile(4, 3, [88] [pid 5250] creat("./file1", 000./strace-static-x86_64: Process 5254 attached [pid 5251] <... close resumed>) = 0 [pid 5249] exit_group(0 [pid 5254] set_robust_list(0x555555ee9660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555ee9650) = 5254 [pid 5254] <... set_robust_list resumed>) = 0 [pid 5251] creat("./file1", 000 [pid 5250] <... creat resumed>) = 5 [pid 5249] <... exit_group resumed>) = ? [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... creat resumed>) = 5 [pid 5254] <... prctl resumed>) = 0 [pid 5250] exit_group(0 [pid 5254] setpgid(0, 0 [pid 5250] <... exit_group resumed>) = ? [pid 5251] exit_group(0 [pid 5250] +++ exited with 0 +++ [pid 5249] +++ exited with 0 +++ [pid 5251] <... exit_group resumed>) = ? [pid 5254] <... setpgid resumed>) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5254] write(3, "1000", 4) = 4 [pid 5254] close(3) = 0 [pid 5254] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5254] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5251] +++ exited with 0 +++ [pid 5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5062] restart_syscall(<... resuming interrupted clone ...> [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5062] <... restart_syscall resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] <... restart_syscall resumed>) = 0 [pid 5058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5255 attached [pid 5058] <... clone resumed>, child_tidptr=0x555555ee9650) = 5255 [pid 5254] sendfile(4, 3, [88] [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5255] set_robust_list(0x555555ee9660, 24 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5255] <... set_robust_list resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5256 attached [pid 5256] set_robust_list(0x555555ee9660, 24 [pid 5062] <... clone resumed>, child_tidptr=0x555555ee9650) = 5256 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5256] <... prctl resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555555ee9650) = 5257 [pid 5256] setpgid(0, 0) = 0 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5256] <... openat resumed>) = 3 [pid 5255] write(3, "1000", 4./strace-static-x86_64: Process 5257 attached ) = 4 [pid 5257] set_robust_list(0x555555ee9660, 24 [pid 5255] close(3 [pid 5257] <... set_robust_list resumed>) = 0 [pid 5256] write(3, "1000", 4 [pid 5255] <... close resumed>) = 0 [pid 5252] <... sendfile resumed> => [95], 7) = 7 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] <... write resumed>) = 4 [pid 5255] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5257] <... prctl resumed>) = 0 [pid 5255] <... openat resumed>) = 3 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5257] write(3, "1000", 4) = 4 [pid 5256] close(3 [pid 5257] close(3 [pid 5256] <... close resumed>) = 0 [pid 5257] <... close resumed>) = 0 [pid 5256] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5257] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5256] <... openat resumed>) = 3 [pid 5255] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5252] memfd_create("syzkaller", 0 [pid 5257] <... openat resumed>) = 3 [pid 5256] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5255] <... openat resumed>) = 4 [pid 5252] <... memfd_create resumed>) = 5 [pid 5256] <... openat resumed>) = 4 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5257] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5256] sendfile(4, 3, [88] [pid 5255] sendfile(4, 3, [88] [pid 5252] <... mmap resumed>) = 0x7ff7eb000000 [pid 5257] <... openat resumed>) = 4 [ 72.619930][ T5252] syz-executor400 (5252): drop_caches: 1 [pid 5257] sendfile(4, 3, [88] [pid 5252] 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 5253] <... sendfile resumed> => [95], 7) = 7 [pid 5252] <... write resumed>) = 2097152 [pid 5253] memfd_create("syzkaller", 0 [pid 5252] munmap(0x7ff7eb000000, 138412032 [pid 5253] <... memfd_create resumed>) = 5 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [ 72.706303][ T5253] syz-executor400 (5253): drop_caches: 1 [pid 5252] <... munmap resumed>) = 0 [pid 5253] 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 5252] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5252] close(5) = 0 [pid 5254] <... sendfile resumed> => [95], 7) = 7 [pid 5254] memfd_create("syzkaller", 0) = 5 [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7eb000000 [pid 5255] <... sendfile resumed> => [95], 7) = 7 [pid 5253] <... write resumed>) = 2097152 [pid 5252] creat("./file1", 000 [pid 5253] munmap(0x7ff7eb000000, 138412032 [pid 5252] <... creat resumed>) = 5 [pid 5252] exit_group(0) = ? [pid 5252] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5253] <... munmap resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5253] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] close(5./strace-static-x86_64: Process 5258 attached [pid 5065] <... clone resumed>, child_tidptr=0x555555ee9650) = 5258 [pid 5253] <... close resumed>) = 0