./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2231322795 <...> Warning: Permanently added '10.128.1.181' (ED25519) to the list of known hosts. execve("./syz-executor2231322795", ["./syz-executor2231322795"], 0x7ffe356865d0 /* 10 vars */) = 0 brk(NULL) = 0x555566297000 brk(0x555566297d00) = 0x555566297d00 arch_prctl(ARCH_SET_FS, 0x555566297380) = 0 set_tid_address(0x555566297650) = 5086 set_robust_list(0x555566297660, 24) = 0 rseq(0x555566297ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2231322795", 4096) = 28 getrandom("\x5a\x15\x04\x71\xb7\xff\x79\xb0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555566297d00 brk(0x5555662b8d00) = 0x5555662b8d00 brk(0x5555662b9000) = 0x5555662b9000 mprotect(0x7f9e58abf000, 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 5087 attached [pid 5087] set_robust_list(0x555566297660, 24) = 0 [pid 5086] <... clone resumed>, child_tidptr=0x555566297650) = 5087 [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5088 attached [pid 5086] <... clone resumed>, child_tidptr=0x555566297650) = 5088 [pid 5088] set_robust_list(0x555566297660, 24 [pid 5087] <... openat resumed>) = 3 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] ioctl(3, LOOP_CLR_FD [pid 5088] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5089 attached [pid 5087] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5086] <... clone resumed>, child_tidptr=0x555566297650) = 5089 [pid 5088] ioctl(3, LOOP_CLR_FD [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] set_robust_list(0x555566297660, 24 [pid 5088] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5087] close(3 [pid 5088] close(3 [pid 5087] <... close resumed>) = 0 [pid 5088] <... close resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... set_robust_list resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x555566297660, 24) = 0 ./strace-static-x86_64: Process 5092 attached [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5092] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5091 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5092 ./strace-static-x86_64: Process 5091 attached [pid 5092] setpgid(0, 0 [pid 5090] ioctl(3, LOOP_CLR_FD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5092] <... setpgid resumed>) = 0 [pid 5090] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] close(3 [pid 5091] set_robust_list(0x555566297660, 24 [pid 5090] <... close resumed>) = 0 [pid 5086] <... clone resumed>, child_tidptr=0x555566297650) = 5090 [pid 5092] <... openat resumed>) = 3 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... openat resumed>) = 3 [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] ioctl(3, LOOP_CLR_FD [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5091] <... prctl resumed>) = 0 [pid 5092] memfd_create("syzkaller", 0 [pid 5091] setpgid(0, 0 [pid 5089] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5091] <... setpgid resumed>) = 0 [pid 5092] <... memfd_create resumed>) = 3 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] close(3 [pid 5092] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5093 attached [pid 5091] <... openat resumed>) = 3 [pid 5089] <... close resumed>) = 0 ./strace-static-x86_64: Process 5094 attached [pid 5086] <... clone resumed>, child_tidptr=0x555566297650) = 5093 [pid 5091] write(3, "1000", 4 [pid 5093] set_robust_list(0x555566297660, 24 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] <... set_robust_list resumed>) = 0 [pid 5094] set_robust_list(0x555566297660, 24 [pid 5091] <... write resumed>) = 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5094 ./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x555566297660, 24 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] <... set_robust_list resumed>) = 0 [pid 5091] close(3 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5093] <... openat resumed>) = 3 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5091] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5095 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] <... prctl resumed>) = 0 [pid 5091] memfd_create("syzkaller", 0 [pid 5094] setpgid(0, 0 [pid 5095] <... prctl resumed>) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] <... setpgid resumed>) = 0 [pid 5095] <... openat resumed>) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] memfd_create("syzkaller", 0) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5091] <... memfd_create resumed>) = 3 [pid 5093] ioctl(3, LOOP_CLR_FD [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] <... write resumed>) = 1048576 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5093] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] close(3 [pid 5094] <... openat resumed>) = 3 [pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5092] munmap(0x7f9e50600000, 138412032 [pid 5093] <... close resumed>) = 0 [pid 5094] write(3, "1000", 4) = 4 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] close(3 [pid 5092] <... munmap resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5097 [pid 5094] <... close resumed>) = 0 ./strace-static-x86_64: Process 5097 attached [pid 5097] set_robust_list(0x555566297660, 24 [pid 5094] memfd_create("syzkaller", 0 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5094] <... memfd_create resumed>) = 3 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5097] <... prctl resumed>) = 0 [pid 5094] <... mmap resumed>) = 0x7f9e50600000 [pid 5097] setpgid(0, 0) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1000", 4 [pid 5095] <... write resumed>) = 1048576 [pid 5097] <... write resumed>) = 4 [pid 5097] close(3) = 0 [pid 5097] memfd_create("syzkaller", 0) = 3 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5095] munmap(0x7f9e50600000, 138412032 [pid 5097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5095] <... munmap resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5092] <... ioctl resumed>) = 0 [pid 5095] <... openat resumed>) = 4 [pid 5092] close(3 [pid 5095] ioctl(4, LOOP_SET_FD, 3 [pid 5092] <... close resumed>) = 0 [pid 5095] <... ioctl resumed>) = 0 [pid 5092] close(4 [pid 5091] <... write resumed>) = 1048576 [pid 5092] <... close resumed>) = 0 [pid 5092] mkdir("./file0", 0777) = 0 [pid 5091] munmap(0x7f9e50600000, 138412032 [pid 5094] <... write resumed>) = 1048576 [pid 5094] munmap(0x7f9e50600000, 138412032 [pid 5092] mount("/dev/loop0", "./file0", "nilfs2", 0, "" [pid 5091] <... munmap resumed>) = 0 [pid 5094] <... munmap resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] close(3 [pid 5091] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5094] <... openat resumed>) = 4 [pid 5097] <... write resumed>) = 1048576 [pid 5095] <... close resumed>) = 0 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5091] <... openat resumed>) = 4 [ 61.746199][ T5092] loop0: detected capacity change from 0 to 2048 [ 61.779480][ T5095] loop2: detected capacity change from 0 to 2048 [pid 5095] close(4 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [pid 5095] <... close resumed>) = 0 [pid 5095] mkdir("./file0", 0777 [pid 5094] <... ioctl resumed>) = 0 [pid 5095] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5094] close(3 [pid 5095] mount("/dev/loop2", "./file0", "nilfs2", 0, "" [pid 5094] <... close resumed>) = 0 [pid 5097] munmap(0x7f9e50600000, 138412032 [pid 5094] close(4 [pid 5097] <... munmap resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] mkdir("./file0", 0777 [pid 5097] <... openat resumed>) = 4 [pid 5094] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5097] ioctl(4, LOOP_SET_FD, 3 [pid 5094] mount("/dev/loop3", "./file0", "nilfs2", 0, "" [pid 5091] <... ioctl resumed>) = 0 [pid 5091] close(3) = 0 [pid 5091] close(4) = 0 [pid 5091] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 61.816187][ T5094] loop3: detected capacity change from 0 to 2048 [ 61.819577][ T5091] loop1: detected capacity change from 0 to 2048 [ 61.841377][ T5097] loop4: detected capacity change from 0 to 2048 [pid 5091] mount("/dev/loop1", "./file0", "nilfs2", 0, "" [pid 5097] <... ioctl resumed>) = 0 [pid 5097] close(3) = 0 [pid 5097] close(4) = 0 [pid 5097] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5097] mount("/dev/loop4", "./file0", "nilfs2", 0, "" [pid 5092] <... mount resumed>) = 0 [pid 5095] <... mount resumed>) = 0 [pid 5094] <... mount resumed>) = 0 [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5092] <... openat resumed>) = 3 [pid 5092] chdir("./file0" [pid 5095] <... openat resumed>) = 3 [pid 5092] <... chdir resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] chdir("./file0" [pid 5092] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] <... chdir resumed>) = 0 [pid 5092] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5095] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] <... openat resumed>) = 3 [ 61.858849][ T5099] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 61.877346][ T5101] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 61.888566][ T5100] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5095] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5094] chdir("./file0") = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5094] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5097] <... mount resumed>) = 0 [pid 5097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5095] <... openat resumed>) = 4 [pid 5097] <... openat resumed>) = 3 [pid 5097] chdir("./file0") = 0 [pid 5094] clone(child_stack=NULL, flags=0 [pid 5092] <... openat resumed>) = 4 [pid 5097] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5095] clone(child_stack=NULL, flags=0 [pid 5097] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] <... mount resumed>) = 0 [pid 5097] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 61.920006][ T5102] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 61.934210][ T5103] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5092] clone(child_stack=NULL, flags=0 [pid 5091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5097] clone(child_stack=NULL, flags=0 [pid 5091] chdir("./file0") = 0 ./strace-static-x86_64: Process 5106 attached ./strace-static-x86_64: Process 5104 attached [pid 5095] <... clone resumed>) = 5106 [pid 5094] <... clone resumed>) = 5104 [pid 5095] ptrace(PTRACE_ATTACH, 5106 [pid 5092] <... clone resumed>) = 5107 [pid 5095] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5092] ptrace(PTRACE_ATTACH, 5107 [pid 5091] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5095] exit_group(0 [pid 5094] ptrace(PTRACE_ATTACH, 5104 [pid 5092] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5091] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5107 attached [pid 5097] <... clone resumed>) = 5108 [pid 5095] <... exit_group resumed>) = ? [pid 5094] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5092] exit_group(0./strace-static-x86_64: Process 5108 attached [pid 5097] ptrace(PTRACE_ATTACH, 5108 [pid 5095] +++ exited with 0 +++ [pid 5094] exit_group(0 [pid 5092] <... exit_group resumed>) = ? [pid 5094] <... exit_group resumed>) = ? [pid 5092] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5097] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5097] exit_group(0 [pid 5094] +++ exited with 0 +++ [pid 5091] <... openat resumed>) = 4 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5097] <... exit_group resumed>) = ? [pid 5091] clone(child_stack=NULL, flags=0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5110 attached ./strace-static-x86_64: Process 5109 attached [pid 5097] +++ exited with 0 +++ [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached [pid 5110] set_robust_list(0x555566297660, 24 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5091] <... clone resumed>) = 5109 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5110 [pid 5111] set_robust_list(0x555566297660, 24 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5091] ptrace(PTRACE_ATTACH, 5109 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5111 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... prctl resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5091] exit_group(0 [pid 5111] <... prctl resumed>) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5112 attached [pid 5111] setpgid(0, 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] <... exit_group resumed>) = ? [pid 5112] set_robust_list(0x555566297660, 24 [pid 5111] <... setpgid resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached [pid 5112] <... set_robust_list resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5112 [pid 5113] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5113 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] <... openat resumed>) = 3 [pid 5110] write(3, "1000", 4 [pid 5091] +++ exited with 0 +++ [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... prctl resumed>) = 0 [pid 5111] write(3, "1000", 4 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5113] <... prctl resumed>) = 0 [pid 5112] setpgid(0, 0 [pid 5111] <... write resumed>) = 4 [pid 5110] <... write resumed>) = 4 [pid 5113] setpgid(0, 0 [pid 5112] <... setpgid resumed>) = 0 [pid 5111] close(3 [pid 5110] close(3 [pid 5113] <... setpgid resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] <... close resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5112] <... openat resumed>) = 3 [pid 5111] memfd_create("syzkaller", 0 [pid 5110] memfd_create("syzkaller", 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5112] write(3, "1000", 4 [pid 5111] <... memfd_create resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] <... openat resumed>) = 3 [pid 5112] <... write resumed>) = 4 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5110] <... memfd_create resumed>) = 3 [pid 5112] close(3 [pid 5111] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] write(3, "1000", 4 [pid 5112] <... close resumed>) = 0 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5113] <... write resumed>) = 4 [pid 5110] <... mmap resumed>) = 0x7f9e50600000 [pid 5113] close(3 [pid 5112] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5114 attached [pid 5113] <... close resumed>) = 0 [pid 5112] <... memfd_create resumed>) = 3 [pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5114 [pid 5114] set_robust_list(0x555566297660, 24 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5113] memfd_create("syzkaller", 0 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5113] <... memfd_create resumed>) = 3 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0 [pid 5113] <... mmap resumed>) = 0x7f9e50600000 [pid 5114] <... setpgid resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5112] <... write resumed>) = 1048576 [pid 5110] <... write resumed>) = 1048576 [pid 5111] <... write resumed>) = 1048576 [pid 5110] munmap(0x7f9e50600000, 138412032 [pid 5111] munmap(0x7f9e50600000, 138412032 [pid 5110] <... munmap resumed>) = 0 [pid 5111] <... munmap resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5111] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5110] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] close(3 [pid 5110] close(3 [pid 5112] munmap(0x7f9e50600000, 138412032 [pid 5114] <... write resumed>) = 1048576 [pid 5113] <... write resumed>) = 1048576 [pid 5111] <... close resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 5114] munmap(0x7f9e50600000, 138412032 [pid 5113] munmap(0x7f9e50600000, 138412032 [pid 5112] <... munmap resumed>) = 0 [pid 5114] <... munmap resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5113] <... munmap resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5111] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5110] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5112] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5112] close(3 [pid 5113] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5110] <... openat resumed>) = 3 [pid 5113] close(3 [pid 5106] exit(0 [pid 5114] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] <... exit resumed>) = ? [pid 5111] <... openat resumed>) = 3 [pid 5106] +++ exited with 0 +++ [pid 5114] close(3 [pid 5104] exit(0) = ? [pid 5107] exit(0 [pid 5110] clone(child_stack=NULL, flags=0 [pid 5107] <... exit resumed>) = ? [pid 5104] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ [pid 5111] clone(child_stack=NULL, flags=0 [pid 5108] exit(0 [pid 5112] <... close resumed>) = 0 [pid 5108] <... exit resumed>) = ? [pid 5113] <... close resumed>) = 0 [pid 5112] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5116 attached ./strace-static-x86_64: Process 5115 attached [pid 5114] <... close resumed>) = 0 [pid 5113] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5112] <... openat resumed>) = 3 [pid 5108] +++ exited with 0 +++ [pid 5114] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5112] clone(child_stack=NULL, flags=0 [pid 5111] <... clone resumed>) = 5116 [pid 5110] <... clone resumed>) = 5115 [pid 5114] clone(child_stack=NULL, flags=0 [pid 5111] ptrace(PTRACE_ATTACH, 5116 [pid 5110] ptrace(PTRACE_ATTACH, 5115 [pid 5113] <... openat resumed>) = 3 [pid 5111] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5110] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5113] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5119 attached ./strace-static-x86_64: Process 5118 attached ./strace-static-x86_64: Process 5117 attached [pid 5114] <... clone resumed>) = 5117 [pid 5111] exit_group(0 [pid 5110] exit_group(0 [pid 5114] ptrace(PTRACE_ATTACH, 5117 [pid 5113] <... clone resumed>) = 5119 [pid 5111] <... exit_group resumed>) = ? [pid 5110] <... exit_group resumed>) = ? [pid 5112] <... clone resumed>) = 5118 [pid 5109] exit(0) = ? [pid 5114] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5113] ptrace(PTRACE_ATTACH, 5119 [pid 5112] ptrace(PTRACE_ATTACH, 5118 [pid 5111] +++ exited with 0 +++ [pid 5109] +++ exited with 0 +++ [pid 5114] exit_group(0 [pid 5113] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5112] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5113] exit_group(0 [pid 5112] exit_group(0 [pid 5110] +++ exited with 0 +++ [pid 5114] <... exit_group resumed>) = ? [pid 5113] <... exit_group resumed>) = ? [pid 5112] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5112] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5114] +++ exited with 0 +++ [pid 5113] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5120 attached [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5120 [pid 5120] set_robust_list(0x555566297660, 24 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5122 attached [pid 5120] <... set_robust_list resumed>) = 0 [pid 5122] set_robust_list(0x555566297660, 24) = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5122 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] set_robust_list(0x555566297660, 24 [pid 5120] <... prctl resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5123 attached [pid 5121] <... set_robust_list resumed>) = 0 [pid 5122] <... prctl resumed>) = 0 [pid 5120] setpgid(0, 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] set_robust_list(0x555566297660, 24 [pid 5122] setpgid(0, 0 [pid 5120] <... setpgid resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] <... set_robust_list resumed>) = 0 [pid 5122] <... setpgid resumed>) = 0 [pid 5121] <... prctl resumed>) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5123 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5121 [pid 5121] setpgid(0, 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5124 attached ) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] <... setpgid resumed>) = 0 [pid 5120] <... openat resumed>) = 3 [pid 5124] set_robust_list(0x555566297660, 24 [pid 5123] setpgid(0, 0 [pid 5122] <... openat resumed>) = 3 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] write(3, "1000", 4 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5123] <... setpgid resumed>) = 0 [pid 5122] write(3, "1000", 4 [pid 5120] <... write resumed>) = 4 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5124 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] close(3 [pid 5121] <... openat resumed>) = 3 [pid 5124] <... prctl resumed>) = 0 [pid 5122] <... write resumed>) = 4 [pid 5120] <... close resumed>) = 0 [pid 5124] setpgid(0, 0 [pid 5123] <... openat resumed>) = 3 [pid 5122] close(3 [pid 5121] write(3, "1000", 4 [pid 5120] memfd_create("syzkaller", 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5122] <... close resumed>) = 0 [pid 5120] <... memfd_create resumed>) = 3 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] write(3, "1000", 4 [pid 5122] memfd_create("syzkaller", 0 [pid 5121] <... write resumed>) = 4 [pid 5124] <... openat resumed>) = 3 [pid 5123] <... write resumed>) = 4 [pid 5121] close(3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] write(3, "1000", 4 [pid 5123] close(3 [pid 5122] <... memfd_create resumed>) = 3 [pid 5121] <... close resumed>) = 0 [pid 5124] <... write resumed>) = 4 [pid 5123] <... close resumed>) = 0 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] <... mmap resumed>) = 0x7f9e50600000 [pid 5124] close(3 [pid 5123] memfd_create("syzkaller", 0 [pid 5122] <... mmap resumed>) = 0x7f9e50600000 [pid 5124] <... close resumed>) = 0 [pid 5123] <... memfd_create resumed>) = 3 [pid 5121] memfd_create("syzkaller", 0 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] memfd_create("syzkaller", 0 [pid 5123] <... mmap resumed>) = 0x7f9e50600000 [pid 5124] <... memfd_create resumed>) = 3 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5121] <... memfd_create resumed>) = 3 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5123] <... write resumed>) = 1048576 [pid 5123] munmap(0x7f9e50600000, 138412032 [pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5124] <... write resumed>) = 1048576 [pid 5123] <... munmap resumed>) = 0 [pid 5122] <... write resumed>) = 1048576 [pid 5121] <... write resumed>) = 1048576 [pid 5120] <... write resumed>) = 1048576 [pid 5124] munmap(0x7f9e50600000, 138412032 [pid 5123] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5122] munmap(0x7f9e50600000, 138412032 [pid 5121] munmap(0x7f9e50600000, 138412032 [pid 5124] <... munmap resumed>) = 0 [pid 5123] close(3 [pid 5122] <... munmap resumed>) = 0 [pid 5121] <... munmap resumed>) = 0 [pid 5120] munmap(0x7f9e50600000, 138412032 [pid 5124] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5122] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5124] close(3 [pid 5122] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] close(3 [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5120] <... munmap resumed>) = 0 [pid 5121] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5121] close(3 [pid 5120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] <... close resumed>) = 0 [pid 5120] close(3 [pid 5116] exit(0 [pid 5115] exit(0 [pid 5123] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5116] <... exit resumed>) = ? [pid 5115] <... exit resumed>) = ? [pid 5123] <... openat resumed>) = 3 [pid 5120] <... close resumed>) = 0 [pid 5116] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ [pid 5123] clone(child_stack=NULL, flags=0 [pid 5121] <... close resumed>) = 0 [pid 5121] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5125 attached [pid 5120] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5123] <... clone resumed>) = 5125 [pid 5123] ptrace(PTRACE_ATTACH, 5125) = -1 EPERM (Operation not permitted) [pid 5120] <... openat resumed>) = 3 [pid 5123] exit_group(0 [pid 5120] clone(child_stack=NULL, flags=0 [pid 5123] <... exit_group resumed>) = ? [pid 5119] exit(0 [pid 5121] <... openat resumed>) = 3 [pid 5121] clone(child_stack=NULL, flags=0 [pid 5120] <... clone resumed>) = 5126 [pid 5119] <... exit resumed>) = ? [pid 5118] exit(0 [pid 5117] exit(0./strace-static-x86_64: Process 5126 attached [pid 5124] <... close resumed>) = 0 [pid 5120] ptrace(PTRACE_ATTACH, 5126 [pid 5119] +++ exited with 0 +++ [pid 5118] <... exit resumed>) = ? [pid 5117] <... exit resumed>) = ? [pid 5122] <... close resumed>) = 0 [pid 5124] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5118] +++ exited with 0 +++ [pid 5122] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5124] <... openat resumed>) = 3 [pid 5122] <... openat resumed>) = 3 [pid 5117] +++ exited with 0 +++ ./strace-static-x86_64: Process 5127 attached [pid 5120] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5123] +++ exited with 0 +++ [pid 5124] clone(child_stack=NULL, flags=0 [pid 5122] clone(child_stack=NULL, flags=0 [pid 5120] exit_group(0 [pid 5121] <... clone resumed>) = 5127 [pid 5120] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5129 attached [pid 5121] ptrace(PTRACE_ATTACH, 5127 [pid 5120] +++ exited with 0 +++ [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5128 attached [pid 5121] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5124] <... clone resumed>) = 5129 [pid 5121] exit_group(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] ptrace(PTRACE_ATTACH, 5129 [pid 5121] <... exit_group resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5124] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5122] <... clone resumed>) = 5128 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached ./strace-static-x86_64: Process 5130 attached [pid 5124] exit_group(0 [pid 5122] ptrace(PTRACE_ATTACH, 5128 [pid 5121] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5130 [pid 5131] set_robust_list(0x555566297660, 24 [pid 5130] set_robust_list(0x555566297660, 24 [pid 5124] <... exit_group resumed>) = ? [pid 5122] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5130] <... set_robust_list resumed>) = 0 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5131] <... set_robust_list resumed>) = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5124] +++ exited with 0 +++ [pid 5122] exit_group(0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5131 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5122] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5131] <... prctl resumed>) = 0 [pid 5130] <... prctl resumed>) = 0 [pid 5122] +++ exited with 0 +++ [pid 5130] setpgid(0, 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5131] setpgid(0, 0 [pid 5130] <... setpgid resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached [pid 5132] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5132 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5131] <... setpgid resumed>) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5132] <... prctl resumed>) = 0 [pid 5132] setpgid(0, 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5132] <... setpgid resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5133 attached [pid 5133] set_robust_list(0x555566297660, 24 [pid 5132] write(3, "1000", 4 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5132] <... write resumed>) = 4 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] close(3 [pid 5131] write(3, "1000", 4 [pid 5130] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5133 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5133] <... prctl resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5130] write(3, "1000", 4 [pid 5133] setpgid(0, 0) = 0 [pid 5132] memfd_create("syzkaller", 0 [pid 5130] <... write resumed>) = 4 ./strace-static-x86_64: Process 5134 attached [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] <... memfd_create resumed>) = 3 [pid 5131] <... write resumed>) = 4 [pid 5130] close(3 [pid 5134] set_robust_list(0x555566297660, 24 [pid 5131] close(3 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] <... close resumed>) = 0 [pid 5130] <... close resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5134 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] <... mmap resumed>) = 0x7f9e50600000 [pid 5131] memfd_create("syzkaller", 0 [pid 5130] memfd_create("syzkaller", 0 [pid 5134] <... prctl resumed>) = 0 [pid 5133] write(3, "1000", 4 [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5131] <... memfd_create resumed>) = 3 [pid 5130] <... memfd_create resumed>) = 3 [pid 5134] setpgid(0, 0 [pid 5133] <... write resumed>) = 4 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5133] close(3) = 0 [pid 5134] <... setpgid resumed>) = 0 [pid 5133] memfd_create("syzkaller", 0 [pid 5131] <... mmap resumed>) = 0x7f9e50600000 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5134] <... openat resumed>) = 3 [pid 5133] <... memfd_create resumed>) = 3 [pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5134] write(3, "1000", 4 [pid 5132] <... write resumed>) = 1048576 [pid 5131] <... write resumed>) = 1048576 [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5134] <... write resumed>) = 4 [pid 5131] munmap(0x7f9e50600000, 138412032 [pid 5130] <... write resumed>) = 1048576 [pid 5134] close(3) = 0 [pid 5134] memfd_create("syzkaller", 0 [pid 5132] munmap(0x7f9e50600000, 138412032 [pid 5131] <... munmap resumed>) = 0 [pid 5134] <... memfd_create resumed>) = 3 [pid 5132] <... munmap resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5133] <... write resumed>) = 1048576 [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] close(3 [pid 5132] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5132] close(3) = 0 [pid 5131] <... close resumed>) = 0 [pid 5130] munmap(0x7f9e50600000, 138412032) = 0 [pid 5133] munmap(0x7f9e50600000, 138412032 [pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5133] <... munmap resumed>) = 0 [pid 5131] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5130] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5130] close(3 [pid 5133] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5130] <... close resumed>) = 0 [pid 5133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5131] <... openat resumed>) = 3 [pid 5133] close(3 [pid 5131] clone(child_stack=NULL, flags=0 [pid 5132] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5135 attached [pid 5134] <... write resumed>) = 1048576 [pid 5133] <... close resumed>) = 0 [pid 5132] clone(child_stack=NULL, flags=0 [pid 5133] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5136 attached [pid 5134] munmap(0x7f9e50600000, 138412032 [pid 5133] <... openat resumed>) = 3 [pid 5131] <... clone resumed>) = 5135 [pid 5130] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5134] <... munmap resumed>) = 0 [pid 5133] clone(child_stack=NULL, flags=0 [pid 5132] <... clone resumed>) = 5136 [pid 5125] exit(0./strace-static-x86_64: Process 5137 attached [pid 5134] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5132] ptrace(PTRACE_ATTACH, 5136 [pid 5131] ptrace(PTRACE_ATTACH, 5135 [pid 5130] <... openat resumed>) = 3 [pid 5125] <... exit resumed>) = ? [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5132] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5131] exit_group(0 [pid 5126] exit(0 [pid 5134] close(3 [pid 5131] <... exit_group resumed>) = ? [pid 5130] clone(child_stack=NULL, flags=0 [pid 5126] <... exit resumed>) = ? [pid 5132] exit_group(0./strace-static-x86_64: Process 5138 attached [pid 5133] <... clone resumed>) = 5137 [pid 5131] +++ exited with 0 +++ [pid 5125] +++ exited with 0 +++ [pid 5134] <... close resumed>) = 0 [pid 5133] ptrace(PTRACE_ATTACH, 5137 [pid 5132] <... exit_group resumed>) = ? [pid 5126] +++ exited with 0 +++ [pid 5127] exit(0) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5133] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5130] <... clone resumed>) = 5138 [pid 5133] exit_group(0 [pid 5130] ptrace(PTRACE_ATTACH, 5138) = -1 EPERM (Operation not permitted) [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5129] exit(0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5129] <... exit resumed>) = ? [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5133] <... exit_group resumed>) = ? [pid 5133] +++ exited with 0 +++ [pid 5132] +++ exited with 0 +++ [pid 5128] exit(0 [pid 5127] +++ exited with 0 +++ [pid 5128] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5134] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5129] +++ exited with 0 +++ [pid 5128] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5134] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5134] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5141 attached ./strace-static-x86_64: Process 5142 attached ./strace-static-x86_64: Process 5139 attached [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5139 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5139] set_robust_list(0x555566297660, 24./strace-static-x86_64: Process 5140 attached [pid 5141] set_robust_list(0x555566297660, 24 [pid 5140] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5140 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5134] <... clone resumed>) = 5142 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] ptrace(PTRACE_ATTACH, 5142 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5141 ./strace-static-x86_64: Process 5143 attached [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] <... prctl resumed>) = 0 [pid 5139] <... prctl resumed>) = 0 [pid 5134] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5143] set_robust_list(0x555566297660, 24 [pid 5141] <... prctl resumed>) = 0 [pid 5140] setpgid(0, 0 [pid 5139] setpgid(0, 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5143 [pid 5143] <... set_robust_list resumed>) = 0 [pid 5141] setpgid(0, 0 [pid 5140] <... setpgid resumed>) = 0 [pid 5139] <... setpgid resumed>) = 0 [pid 5134] exit_group(0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... setpgid resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] <... exit_group resumed>) = ? [pid 5143] <... prctl resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] +++ exited with 0 +++ [pid 5143] setpgid(0, 0 [pid 5140] <... openat resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5140] write(3, "1000", 4 [pid 5143] <... setpgid resumed>) = 0 [pid 5141] <... openat resumed>) = 3 [pid 5139] <... openat resumed>) = 3 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5140] <... write resumed>) = 4 [pid 5139] write(3, "1000", 4 [pid 5140] close(3) = 0 [pid 5139] <... write resumed>) = 4 [pid 5143] <... openat resumed>) = 3 [pid 5141] write(3, "1000", 4 [pid 5140] memfd_create("syzkaller", 0 [pid 5139] close(3 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5143] write(3, "1000", 4 [pid 5141] <... write resumed>) = 4 [pid 5139] <... close resumed>) = 0 [pid 5143] <... write resumed>) = 4 [pid 5141] close(3 [pid 5140] <... memfd_create resumed>) = 3 [pid 5139] memfd_create("syzkaller", 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] close(3 [pid 5141] <... close resumed>) = 0 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5143] <... close resumed>) = 0 [pid 5141] memfd_create("syzkaller", 0 [pid 5140] <... mmap resumed>) = 0x7f9e50600000 [pid 5139] <... memfd_create resumed>) = 3 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5143] memfd_create("syzkaller", 0 [pid 5141] <... memfd_create resumed>) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5144 attached [pid 5141] <... mmap resumed>) = 0x7f9e50600000 [pid 5139] <... mmap resumed>) = 0x7f9e50600000 [pid 5144] set_robust_list(0x555566297660, 24 [pid 5143] <... memfd_create resumed>) = 3 [pid 5139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5144] <... set_robust_list resumed>) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5144 [pid 5144] <... prctl resumed>) = 0 [pid 5144] setpgid(0, 0) = 0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5144] <... openat resumed>) = 3 [pid 5141] <... write resumed>) = 1048576 [pid 5140] <... write resumed>) = 1048576 [pid 5144] write(3, "1000", 4 [pid 5141] munmap(0x7f9e50600000, 138412032 [pid 5144] <... write resumed>) = 4 [pid 5144] close(3 [pid 5140] munmap(0x7f9e50600000, 138412032 [pid 5144] <... close resumed>) = 0 [pid 5143] <... write resumed>) = 1048576 [pid 5141] <... munmap resumed>) = 0 [pid 5140] <... munmap resumed>) = 0 [pid 5139] <... write resumed>) = 1048576 [pid 5144] memfd_create("syzkaller", 0 [pid 5141] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5139] munmap(0x7f9e50600000, 138412032 [pid 5144] <... memfd_create resumed>) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5144] <... mmap resumed>) = 0x7f9e50600000 [pid 5141] close(3 [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5140] close(3 [pid 5143] munmap(0x7f9e50600000, 138412032) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5143] close(3 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5143] <... close resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5139] <... munmap resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5140] <... close resumed>) = 0 [pid 5140] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5139] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] <... openat resumed>) = 3 [pid 5139] close(3 [pid 5140] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5145 attached [pid 5141] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5143] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5141] <... openat resumed>) = 3 [pid 5141] clone(child_stack=NULL, flags=0 [pid 5135] exit(0 [pid 5143] <... openat resumed>) = 3 [pid 5140] <... clone resumed>) = 5145 [pid 5136] exit(0 [pid 5135] <... exit resumed>) = ? [pid 5143] clone(child_stack=NULL, flags=0 [pid 5140] ptrace(PTRACE_ATTACH, 5145 [pid 5136] <... exit resumed>) = ? [pid 5135] +++ exited with 0 +++ ./strace-static-x86_64: Process 5146 attached [pid 5144] <... write resumed>) = 1048576 [pid 5140] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5139] <... close resumed>) = 0 [pid 5136] +++ exited with 0 +++ [pid 5144] munmap(0x7f9e50600000, 138412032 [pid 5141] <... clone resumed>) = 5146 ./strace-static-x86_64: Process 5147 attached [pid 5137] exit(0 [pid 5144] <... munmap resumed>) = 0 [pid 5141] ptrace(PTRACE_ATTACH, 5146 [pid 5140] exit_group(0 [pid 5139] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5137] <... exit resumed>) = ? [pid 5144] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5143] <... clone resumed>) = 5147 [pid 5141] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5140] <... exit_group resumed>) = ? [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5141] exit_group(0 [pid 5140] +++ exited with 0 +++ [pid 5139] <... openat resumed>) = 3 [pid 5137] +++ exited with 0 +++ [pid 5144] close(3 [pid 5143] ptrace(PTRACE_ATTACH, 5147 [pid 5141] <... exit_group resumed>) = ? [pid 5139] clone(child_stack=NULL, flags=0 [pid 5138] exit(0 [pid 5143] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5143] exit_group(0 [pid 5138] <... exit resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5143] <... exit_group resumed>) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5143] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5148 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5148 attached ) = -1 EBUSY (Device or resource busy) [pid 5148] set_robust_list(0x555566297660, 24 [pid 5138] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] <... set_robust_list resumed>) = 0 [pid 5141] +++ exited with 0 +++ ./strace-static-x86_64: Process 5150 attached ./strace-static-x86_64: Process 5149 attached [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] <... clone resumed>) = 5149 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5150] set_robust_list(0x555566297660, 24 [pid 5139] ptrace(PTRACE_ATTACH, 5149) = -1 EPERM (Operation not permitted) [pid 5148] <... prctl resumed>) = 0 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5148] setpgid(0, 0 [pid 5139] exit_group(0 [pid 5150] <... prctl resumed>) = 0 [pid 5148] <... setpgid resumed>) = 0 [pid 5139] <... exit_group resumed>) = ? [pid 5144] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5150 [pid 5150] setpgid(0, 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] <... setpgid resumed>) = 0 [pid 5148] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5151 attached [pid 5144] <... openat resumed>) = 3 [pid 5151] set_robust_list(0x555566297660, 24 [pid 5144] clone(child_stack=NULL, flags=0 [pid 5151] <... set_robust_list resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5148] write(3, "1000", 4 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5150] write(3, "1000", 4 [pid 5148] <... write resumed>) = 4 ./strace-static-x86_64: Process 5152 attached [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] <... write resumed>) = 4 [pid 5148] close(3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5151 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5151] <... prctl resumed>) = 0 [pid 5150] close(3 [pid 5148] <... close resumed>) = 0 [pid 5144] <... clone resumed>) = 5152 [pid 5151] setpgid(0, 0 [pid 5150] <... close resumed>) = 0 [pid 5148] memfd_create("syzkaller", 0 [pid 5144] ptrace(PTRACE_ATTACH, 5152 [pid 5142] exit(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] <... setpgid resumed>) = 0 [pid 5150] memfd_create("syzkaller", 0 [pid 5148] <... memfd_create resumed>) = 3 [pid 5144] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5142] <... exit resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5150] <... memfd_create resumed>) = 3 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5148] <... mmap resumed>) = 0x7f9e50600000 [pid 5150] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5153 attached [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5144] exit_group(0 [pid 5142] +++ exited with 0 +++ [pid 5151] <... openat resumed>) = 3 [pid 5144] <... exit_group resumed>) = ? [pid 5144] +++ exited with 0 +++ [pid 5151] write(3, "1000", 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5153 [pid 5151] <... write resumed>) = 4 [pid 5151] close(3) = 0 [pid 5151] memfd_create("syzkaller", 0) = 3 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5153] set_robust_list(0x555566297660, 24 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5153] <... set_robust_list resumed>) = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... write resumed>) = 1048576 [pid 5150] <... write resumed>) = 1048576 [pid 5148] <... write resumed>) = 1048576 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5153] <... prctl resumed>) = 0 [pid 5151] munmap(0x7f9e50600000, 138412032 [pid 5153] setpgid(0, 0 [pid 5150] munmap(0x7f9e50600000, 138412032 [pid 5148] munmap(0x7f9e50600000, 138412032 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5153] <... setpgid resumed>) = 0 [pid 5151] <... munmap resumed>) = 0 [pid 5150] <... munmap resumed>) = 0 [pid 5148] <... munmap resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5153] <... openat resumed>) = 3 [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5148] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5153] write(3, "1000", 4 [pid 5151] close(3 [pid 5150] close(3 [pid 5148] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5153] <... write resumed>) = 4 [pid 5151] <... close resumed>) = 0 [pid 5150] <... close resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] close(3 [pid 5151] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5148] close(3./strace-static-x86_64: Process 5154 attached [pid 5153] <... close resumed>) = 0 [pid 5150] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5151] <... openat resumed>) = 3 [pid 5154] set_robust_list(0x555566297660, 24 [pid 5153] memfd_create("syzkaller", 0 [pid 5150] <... openat resumed>) = 3 [pid 5154] <... set_robust_list resumed>) = 0 [pid 5153] <... memfd_create resumed>) = 3 [pid 5151] clone(child_stack=NULL, flags=0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5154] <... prctl resumed>) = 0 [pid 5153] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5155 attached [pid 5154] setpgid(0, 0 [pid 5150] clone(child_stack=NULL, flags=0 [pid 5148] <... close resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5154 [pid 5154] <... setpgid resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5151] <... clone resumed>) = 5155 [pid 5151] ptrace(PTRACE_ATTACH, 5155 [pid 5148] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5156 attached [pid 5154] write(3, "1000", 4 [pid 5151] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5150] <... clone resumed>) = 5156 [pid 5154] <... write resumed>) = 4 [pid 5151] exit_group(0 [pid 5148] <... openat resumed>) = 3 [pid 5154] close(3 [pid 5151] <... exit_group resumed>) = ? [pid 5150] ptrace(PTRACE_ATTACH, 5156 [pid 5148] clone(child_stack=NULL, flags=0 [pid 5154] <... close resumed>) = 0 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5154] memfd_create("syzkaller", 0) = 3 [pid 5150] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5151] +++ exited with 0 +++ [pid 5150] exit_group(0./strace-static-x86_64: Process 5157 attached ) = ? [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5150] +++ exited with 0 +++ [pid 5148] <... clone resumed>) = 5157 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5148] ptrace(PTRACE_ATTACH, 5157 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5148] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5148] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5158 attached [pid 5148] +++ exited with 0 +++ [pid 5158] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5158 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5158] <... set_robust_list resumed>) = 0 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... restart_syscall resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5158] <... prctl resumed>) = 0 [pid 5158] setpgid(0, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] <... setpgid resumed>) = 0 [pid 5153] <... write resumed>) = 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] munmap(0x7f9e50600000, 138412032 [pid 5158] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5159 attached [pid 5158] write(3, "1000", 4 [pid 5153] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5160 attached [pid 5159] set_robust_list(0x555566297660, 24 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5159 [pid 5158] <... write resumed>) = 4 [pid 5160] set_robust_list(0x555566297660, 24) = 0 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5158] close(3 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5158] <... close resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5160 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5158] memfd_create("syzkaller", 0 [pid 5160] <... prctl resumed>) = 0 [pid 5159] <... prctl resumed>) = 0 [pid 5153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] exit(0 [pid 5158] <... memfd_create resumed>) = 3 [pid 5160] setpgid(0, 0 [pid 5159] setpgid(0, 0 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] close(3 [pid 5145] <... exit resumed>) = ? [pid 5160] <... setpgid resumed>) = 0 [pid 5159] <... setpgid resumed>) = 0 [pid 5158] <... mmap resumed>) = 0x7f9e50600000 [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] <... write resumed>) = 1048576 [pid 5153] <... close resumed>) = 0 [pid 5145] +++ exited with 0 +++ [pid 5160] <... openat resumed>) = 3 [pid 5159] <... openat resumed>) = 3 [pid 5146] exit(0 [pid 5154] munmap(0x7f9e50600000, 138412032 [pid 5146] <... exit resumed>) = ? [pid 5147] exit(0 [pid 5160] write(3, "1000", 4 [pid 5159] write(3, "1000", 4 [pid 5147] <... exit resumed>) = ? [pid 5160] <... write resumed>) = 4 [pid 5159] <... write resumed>) = 4 [pid 5160] close(3 [pid 5159] close(3) = 0 [pid 5160] <... close resumed>) = 0 [pid 5160] memfd_create("syzkaller", 0 [pid 5159] memfd_create("syzkaller", 0 [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5154] <... munmap resumed>) = 0 [pid 5153] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5146] +++ exited with 0 +++ [pid 5147] +++ exited with 0 +++ [pid 5159] <... memfd_create resumed>) = 3 [pid 5154] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5153] <... openat resumed>) = 3 [pid 5149] exit(0 [pid 5160] <... memfd_create resumed>) = 3 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5154] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] <... exit resumed>) = ? [pid 5153] clone(child_stack=NULL, flags=0 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5159] <... mmap resumed>) = 0x7f9e50600000 [pid 5154] close(3 [pid 5149] +++ exited with 0 +++ [pid 5152] exit(0) = ? [pid 5160] <... mmap resumed>) = 0x7f9e50600000 [pid 5152] +++ exited with 0 +++ [pid 5153] <... clone resumed>) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5154] <... close resumed>) = 0 [pid 5153] ptrace(PTRACE_ATTACH, 5161 [pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5158] <... write resumed>) = 1048576 [pid 5154] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5153] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5154] <... openat resumed>) = 3 [pid 5153] exit_group(0 [pid 5158] munmap(0x7f9e50600000, 138412032 [pid 5153] <... exit_group resumed>) = ? [pid 5158] <... munmap resumed>) = 0 [pid 5154] clone(child_stack=NULL, flags=0 [pid 5153] +++ exited with 0 +++ ./strace-static-x86_64: Process 5162 attached [pid 5159] <... write resumed>) = 1048576 [pid 5159] munmap(0x7f9e50600000, 138412032 [pid 5158] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5158] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] close(3 [pid 5159] <... munmap resumed>) = 0 [pid 5154] <... clone resumed>) = 5162 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5160] <... write resumed>) = 1048576 [pid 5159] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5158] <... close resumed>) = 0 [pid 5154] ptrace(PTRACE_ATTACH, 5162 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5160] munmap(0x7f9e50600000, 138412032 [pid 5159] close(3 [pid 5160] <... munmap resumed>) = 0 [pid 5159] <... close resumed>) = 0 [pid 5158] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5154] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5160] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5158] <... openat resumed>) = 3 [pid 5160] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5154] exit_group(0 [pid 5160] close(3 [pid 5154] <... exit_group resumed>) = ? [pid 5158] clone(child_stack=NULL, flags=0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5163 ./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x555566297660, 24) = 0 [pid 5159] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5154] +++ exited with 0 +++ [pid 5159] <... openat resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5164 attached ) = 0 [pid 5159] clone(child_stack=NULL, flags=0 [pid 5088] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5165 attached [pid 5163] setpgid(0, 0 [pid 5158] <... clone resumed>) = 5164 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5163] <... setpgid resumed>) = 0 [pid 5158] ptrace(PTRACE_ATTACH, 5164) = -1 EPERM (Operation not permitted) [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5158] exit_group(0 [pid 5163] <... openat resumed>) = 3 [pid 5158] <... exit_group resumed>) = ? [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5163] write(3, "1000", 4 [pid 5160] <... close resumed>) = 0 [pid 5159] <... clone resumed>) = 5165 [pid 5163] <... write resumed>) = 4 [pid 5163] close(3 [pid 5159] ptrace(PTRACE_ATTACH, 5165 [pid 5155] exit(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] <... close resumed>) = 0 [pid 5160] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5159] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5155] <... exit resumed>) = ? [pid 5163] memfd_create("syzkaller", 0 [pid 5160] <... openat resumed>) = 3 [pid 5159] exit_group(0 [pid 5156] exit(0) = ? [pid 5163] <... memfd_create resumed>) = 3 [pid 5159] <... exit_group resumed>) = ? [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] clone(child_stack=NULL, flags=0 [pid 5159] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached [pid 5163] <... mmap resumed>) = 0x7f9e50600000 [pid 5158] +++ exited with 0 +++ [pid 5156] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5167 attached [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5167] set_robust_list(0x555566297660, 24 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5167] <... set_robust_list resumed>) = 0 [pid 5157] exit(0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] <... exit resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5167 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5167] <... prctl resumed>) = 0 [pid 5167] setpgid(0, 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5167] <... setpgid resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5160] <... clone resumed>) = 5166 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5168 attached [pid 5167] <... openat resumed>) = 3 [pid 5160] ptrace(PTRACE_ATTACH, 5166 [pid 5157] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached [pid 5168] set_robust_list(0x555566297660, 24 [pid 5167] write(3, "1000", 4 [pid 5160] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5168 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5167] <... write resumed>) = 4 [pid 5160] exit_group(0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5169 [pid 5169] set_robust_list(0x555566297660, 24 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] close(3 [pid 5160] <... exit_group resumed>) = ? [pid 5169] <... set_robust_list resumed>) = 0 [pid 5168] <... prctl resumed>) = 0 [pid 5167] <... close resumed>) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] setpgid(0, 0) = 0 [pid 5167] memfd_create("syzkaller", 0 [pid 5169] <... prctl resumed>) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] <... memfd_create resumed>) = 3 [pid 5160] +++ exited with 0 +++ [pid 5169] setpgid(0, 0 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5169] <... setpgid resumed>) = 0 [pid 5168] <... openat resumed>) = 3 [pid 5167] <... mmap resumed>) = 0x7f9e50600000 [pid 5163] <... write resumed>) = 1048576 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] write(3, "1000", 4 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5163] munmap(0x7f9e50600000, 138412032 [pid 5168] <... write resumed>) = 4 [pid 5168] close(3) = 0 [pid 5169] <... openat resumed>) = 3 [pid 5163] <... munmap resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5169] write(3, "1000", 4) = 4 [pid 5168] memfd_create("syzkaller", 0) = 3 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5169] close(3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5170 [pid 5169] <... close resumed>) = 0 [pid 5169] memfd_create("syzkaller", 0 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5170 attached [pid 5163] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5170] set_robust_list(0x555566297660, 24 [pid 5163] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] <... memfd_create resumed>) = 3 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5170] <... set_robust_list resumed>) = 0 [pid 5169] <... mmap resumed>) = 0x7f9e50600000 [pid 5163] close(3 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5167] <... write resumed>) = 1048576 [pid 5170] setpgid(0, 0) = 0 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] <... close resumed>) = 0 [pid 5170] write(3, "1000", 4) = 4 [pid 5170] close(3 [pid 5169] <... write resumed>) = 1048576 [pid 5168] <... write resumed>) = 1048576 [pid 5167] munmap(0x7f9e50600000, 138412032 [pid 5163] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5170] <... close resumed>) = 0 [pid 5169] munmap(0x7f9e50600000, 138412032 [pid 5168] munmap(0x7f9e50600000, 138412032 [pid 5167] <... munmap resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [pid 5170] memfd_create("syzkaller", 0 [pid 5167] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5163] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5171 attached [pid 5170] <... memfd_create resumed>) = 3 [pid 5169] <... munmap resumed>) = 0 [pid 5168] <... munmap resumed>) = 0 [pid 5167] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5161] exit(0 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5167] close(3 [pid 5163] <... clone resumed>) = 5171 [pid 5170] <... mmap resumed>) = 0x7f9e50600000 [pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5168] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5163] ptrace(PTRACE_ATTACH, 5171 [pid 5161] <... exit resumed>) = ? [pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5169] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5168] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] <... close resumed>) = 0 [pid 5163] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5163] exit_group(0) = ? [pid 5169] close(3 [pid 5168] close(3 [pid 5163] +++ exited with 0 +++ [pid 5161] +++ exited with 0 +++ [pid 5167] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5170] <... write resumed>) = 1048576 [pid 5169] <... close resumed>) = 0 [pid 5168] <... close resumed>) = 0 [pid 5167] <... openat resumed>) = 3 [pid 5170] munmap(0x7f9e50600000, 138412032 [pid 5169] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5168] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5167] clone(child_stack=NULL, flags=0 [pid 5162] exit(0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5172 attached [pid 5170] <... munmap resumed>) = 0 [pid 5169] <... openat resumed>) = 3 [pid 5168] <... openat resumed>) = 3 [pid 5162] <... exit resumed>) = ? [pid 5168] clone(child_stack=NULL, flags=0 [pid 5170] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5162] +++ exited with 0 +++ ./strace-static-x86_64: Process 5173 attached [pid 5170] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] clone(child_stack=NULL, flags=0 [pid 5167] <... clone resumed>) = 5172 [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5170] close(3 [pid 5167] ptrace(PTRACE_ATTACH, 5172./strace-static-x86_64: Process 5174 attached [pid 5170] <... close resumed>) = 0 [pid 5168] <... clone resumed>) = 5173 [pid 5167] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5169] <... clone resumed>) = 5174 [pid 5170] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5168] ptrace(PTRACE_ATTACH, 5173 [pid 5167] exit_group(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5170] <... openat resumed>) = 3 [pid 5169] ptrace(PTRACE_ATTACH, 5174 [pid 5168] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5167] <... exit_group resumed>) = ? [pid 5169] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5168] exit_group(0 [pid 5167] +++ exited with 0 +++ [pid 5165] exit(0 [pid 5164] exit(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5170] clone(child_stack=NULL, flags=0 [pid 5169] exit_group(0 [pid 5168] <... exit_group resumed>) = ? [pid 5165] <... exit resumed>) = ? [pid 5164] <... exit resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached [pid 5169] <... exit_group resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5170] <... clone resumed>) = 5175 ./strace-static-x86_64: Process 5176 attached [pid 5169] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ [pid 5164] +++ exited with 0 +++ [pid 5088] <... restart_syscall resumed>) = 0 [pid 5176] set_robust_list(0x555566297660, 24 [pid 5170] ptrace(PTRACE_ATTACH, 5175 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5176 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5176] <... set_robust_list resumed>) = 0 [pid 5170] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5166] exit(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] exit_group(0 [pid 5166] <... exit resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5170] <... exit_group resumed>) = ? [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... prctl resumed>) = 0 [pid 5170] +++ exited with 0 +++ [pid 5166] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5177 attached [pid 5176] setpgid(0, 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5178 attached [pid 5177] set_robust_list(0x555566297660, 24 [pid 5176] <... setpgid resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5177 [pid 5178] set_robust_list(0x555566297660, 24 [pid 5177] <... set_robust_list resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5179 attached [pid 5178] <... set_robust_list resumed>) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5178 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5179] set_robust_list(0x555566297660, 24 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... prctl resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5179 [pid 5179] <... set_robust_list resumed>) = 0 [pid 5178] <... prctl resumed>) = 0 [pid 5177] setpgid(0, 0 [pid 5176] write(3, "1000", 4 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5180 attached [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] setpgid(0, 0 [pid 5177] <... setpgid resumed>) = 0 [pid 5176] <... write resumed>) = 4 [pid 5180] set_robust_list(0x555566297660, 24 [pid 5178] <... setpgid resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] <... set_robust_list resumed>) = 0 [pid 5179] <... prctl resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5176] close(3 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] setpgid(0, 0 [pid 5177] <... openat resumed>) = 3 [pid 5176] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5180 [pid 5180] <... prctl resumed>) = 0 [pid 5179] <... setpgid resumed>) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5177] write(3, "1000", 4 [pid 5176] memfd_create("syzkaller", 0 [pid 5180] setpgid(0, 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] write(3, "1000", 4 [pid 5177] <... write resumed>) = 4 [pid 5176] <... memfd_create resumed>) = 3 [pid 5180] <... setpgid resumed>) = 0 [pid 5179] <... openat resumed>) = 3 [pid 5178] <... write resumed>) = 4 [pid 5177] close(3 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] close(3 [pid 5177] <... close resumed>) = 0 [pid 5176] <... mmap resumed>) = 0x7f9e50600000 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] write(3, "1000", 4 [pid 5178] <... close resumed>) = 0 [pid 5177] memfd_create("syzkaller", 0 [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5179] <... write resumed>) = 4 [pid 5179] close(3) = 0 [pid 5179] memfd_create("syzkaller", 0) = 3 [pid 5180] <... openat resumed>) = 3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] memfd_create("syzkaller", 0 [pid 5177] <... memfd_create resumed>) = 3 [pid 5176] <... write resumed>) = 1048576 [pid 5179] <... mmap resumed>) = 0x7f9e50600000 [pid 5176] munmap(0x7f9e50600000, 138412032 [pid 5180] write(3, "1000", 4 [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5178] <... memfd_create resumed>) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5180] <... write resumed>) = 4 [pid 5176] <... munmap resumed>) = 0 [pid 5180] close(3 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] <... mmap resumed>) = 0x7f9e50600000 [pid 5180] <... close resumed>) = 0 [pid 5178] <... mmap resumed>) = 0x7f9e50600000 [pid 5180] memfd_create("syzkaller", 0 [pid 5176] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5180] <... memfd_create resumed>) = 3 [pid 5179] <... write resumed>) = 1048576 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5179] munmap(0x7f9e50600000, 138412032 [pid 5176] close(3 [pid 5179] <... munmap resumed>) = 0 [pid 5180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5176] <... close resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5179] close(3 [pid 5177] <... write resumed>) = 1048576 [pid 5179] <... close resumed>) = 0 [pid 5177] munmap(0x7f9e50600000, 138412032 [pid 5171] exit(0 [pid 5176] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] <... munmap resumed>) = 0 [pid 5176] <... openat resumed>) = 3 [pid 5171] <... exit resumed>) = ? [pid 5176] clone(child_stack=NULL, flags=0 [pid 5171] +++ exited with 0 +++ [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5179] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] close(3 [pid 5179] <... openat resumed>) = 3 [pid 5179] clone(child_stack=NULL, flags=0 [pid 5176] <... clone resumed>) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5176] ptrace(PTRACE_ATTACH, 5181) = -1 EPERM (Operation not permitted) [pid 5176] exit_group(0 [pid 5179] <... clone resumed>) = 5182 [pid 5178] <... write resumed>) = 1048576 [pid 5176] <... exit_group resumed>) = ? [pid 5179] ptrace(PTRACE_ATTACH, 5182./strace-static-x86_64: Process 5182 attached ) = -1 EPERM (Operation not permitted) [pid 5176] +++ exited with 0 +++ [pid 5179] exit_group(0) = ? [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5179] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5178] munmap(0x7f9e50600000, 138412032 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5180] <... write resumed>) = 1048576 [pid 5177] <... close resumed>) = 0 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5180] munmap(0x7f9e50600000, 138412032 [pid 5178] <... munmap resumed>) = 0 [pid 5177] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5174] exit(0 [pid 5173] exit(0 [pid 5172] exit(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5174] <... exit resumed>) = ? [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5172] <... exit resumed>) = ? [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] close(3 [pid 5180] <... munmap resumed>) = 0 [pid 5177] <... openat resumed>) = 3 [pid 5174] +++ exited with 0 +++ [pid 5173] <... exit resumed>) = ? [pid 5172] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] clone(child_stack=NULL, flags=0 [pid 5173] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5184 attached [pid 5180] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5185 attached ./strace-static-x86_64: Process 5183 attached ) = -1 EBUSY (Device or resource busy) [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5185 [pid 5185] set_robust_list(0x555566297660, 24) = 0 [pid 5183] set_robust_list(0x555566297660, 24 [pid 5180] close(3 [pid 5178] <... close resumed>) = 0 [pid 5177] <... clone resumed>) = 5184 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5183 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] ptrace(PTRACE_ATTACH, 5184 [pid 5185] <... prctl resumed>) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5177] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5185] setpgid(0, 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] exit_group(0 [pid 5175] exit(0 [pid 5185] <... setpgid resumed>) = 0 [pid 5183] <... prctl resumed>) = 0 [pid 5178] clone(child_stack=NULL, flags=0 [pid 5177] <... exit_group resumed>) = ? [pid 5175] <... exit resumed>) = ? ./strace-static-x86_64: Process 5186 attached [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] setpgid(0, 0 [pid 5180] <... close resumed>) = 0 [pid 5177] +++ exited with 0 +++ [pid 5175] +++ exited with 0 +++ [pid 5185] <... openat resumed>) = 3 [pid 5183] <... setpgid resumed>) = 0 [pid 5180] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5185] write(3, "1000", 4 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] <... write resumed>) = 4 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5185] close(3 [pid 5180] <... openat resumed>) = 3 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5185] <... close resumed>) = 0 [pid 5183] <... openat resumed>) = 3 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5185] memfd_create("syzkaller", 0 [pid 5178] <... clone resumed>) = 5186 [pid 5185] <... memfd_create resumed>) = 3 [pid 5183] write(3, "1000", 4 [pid 5180] clone(child_stack=NULL, flags=0 [pid 5178] ptrace(PTRACE_ATTACH, 5186 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5185] <... mmap resumed>) = 0x7f9e50600000 [pid 5178] exit_group(0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] <... write resumed>) = 4 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached ./strace-static-x86_64: Process 5188 attached [pid 5183] close(3 [pid 5178] <... exit_group resumed>) = ? [pid 5188] set_robust_list(0x555566297660, 24 [pid 5183] <... close resumed>) = 0 [pid 5180] <... clone resumed>) = 5187 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5183] memfd_create("syzkaller", 0 [pid 5178] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5188 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] <... memfd_create resumed>) = 3 [pid 5180] ptrace(PTRACE_ATTACH, 5187 [pid 5188] <... prctl resumed>) = 0 [pid 5185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5180] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5188] setpgid(0, 0 [pid 5183] <... mmap resumed>) = 0x7f9e50600000 [pid 5188] <... setpgid resumed>) = 0 [pid 5180] exit_group(0) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5180] +++ exited with 0 +++ [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5188] <... openat resumed>) = 3 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5188] write(3, "1000", 4./strace-static-x86_64: Process 5189 attached ) = 4 [pid 5188] close(3 [pid 5189] set_robust_list(0x555566297660, 24 [pid 5188] <... close resumed>) = 0 [pid 5185] <... write resumed>) = 1048576 [pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5189] <... set_robust_list resumed>) = 0 [pid 5188] memfd_create("syzkaller", 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5188] <... memfd_create resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5189 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5189] <... prctl resumed>) = 0 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached [pid 5189] setpgid(0, 0 [pid 5188] <... mmap resumed>) = 0x7f9e50600000 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5190 [pid 5185] munmap(0x7f9e50600000, 138412032 [pid 5190] set_robust_list(0x555566297660, 24 [pid 5189] <... setpgid resumed>) = 0 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5183] <... write resumed>) = 1048576 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] <... munmap resumed>) = 0 [pid 5183] munmap(0x7f9e50600000, 138412032 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] <... openat resumed>) = 3 [pid 5190] setpgid(0, 0) = 0 [pid 5189] write(3, "1000", 4 [pid 5183] <... munmap resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] <... write resumed>) = 4 [pid 5185] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5190] <... openat resumed>) = 3 [pid 5189] close(3 [pid 5185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5189] <... close resumed>) = 0 [pid 5190] write(3, "1000", 4 [pid 5189] memfd_create("syzkaller", 0 [pid 5185] close(3 [pid 5183] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5190] <... write resumed>) = 4 [pid 5190] close(3 [pid 5189] <... memfd_create resumed>) = 3 [pid 5183] close(3 [pid 5190] <... close resumed>) = 0 [pid 5188] <... write resumed>) = 1048576 [pid 5183] <... close resumed>) = 0 [pid 5190] memfd_create("syzkaller", 0 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] <... close resumed>) = 0 [pid 5188] munmap(0x7f9e50600000, 138412032 [pid 5189] <... mmap resumed>) = 0x7f9e50600000 [pid 5190] <... memfd_create resumed>) = 3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5188] <... munmap resumed>) = 0 [pid 5185] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5183] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5190] <... mmap resumed>) = 0x7f9e50600000 [pid 5185] <... openat resumed>) = 3 [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5185] clone(child_stack=NULL, flags=0 [pid 5183] <... openat resumed>) = 3 [pid 5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5188] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5191 attached [pid 5188] close(3./strace-static-x86_64: Process 5192 attached ) = 0 [pid 5185] <... clone resumed>) = 5191 [pid 5183] <... clone resumed>) = 5192 [pid 5190] <... write resumed>) = 1048576 [pid 5189] <... write resumed>) = 1048576 [pid 5188] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5185] ptrace(PTRACE_ATTACH, 5191 [pid 5183] ptrace(PTRACE_ATTACH, 5192 [pid 5181] exit(0 [pid 5190] munmap(0x7f9e50600000, 138412032 [pid 5189] munmap(0x7f9e50600000, 138412032 [pid 5188] <... openat resumed>) = 3 [pid 5185] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5183] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5182] exit(0 [pid 5181] <... exit resumed>) = ? [pid 5190] <... munmap resumed>) = 0 [pid 5189] <... munmap resumed>) = 0 [pid 5185] exit_group(0 [pid 5183] exit_group(0 [pid 5182] <... exit resumed>) = ? [pid 5181] +++ exited with 0 +++ [pid 5190] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5189] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5188] clone(child_stack=NULL, flags=0 [pid 5185] <... exit_group resumed>) = ? [pid 5190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5189] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] +++ exited with 0 +++ ./strace-static-x86_64: Process 5193 attached [pid 5190] close(3 [pid 5189] close(3 [pid 5183] <... exit_group resumed>) = ? [pid 5190] <... close resumed>) = 0 [pid 5189] <... close resumed>) = 0 [pid 5185] +++ exited with 0 +++ [pid 5188] <... clone resumed>) = 5193 [pid 5188] ptrace(PTRACE_ATTACH, 5193) = -1 EPERM (Operation not permitted) [pid 5188] exit_group(0) = ? [pid 5183] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5189] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5194] set_robust_list(0x555566297660, 24 [pid 5190] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5189] <... openat resumed>) = 3 [pid 5188] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5194 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5190] <... openat resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5189] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5195 attached [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] clone(child_stack=NULL, flags=0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] <... clone resumed>) = 5195 ./strace-static-x86_64: Process 5197 attached ./strace-static-x86_64: Process 5196 attached [pid 5194] <... prctl resumed>) = 0 [pid 5189] ptrace(PTRACE_ATTACH, 5195 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5196 [pid 5196] set_robust_list(0x555566297660, 24 [pid 5194] setpgid(0, 0 [pid 5190] <... clone resumed>) = 5197 [pid 5189] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5184] exit(0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5196] <... set_robust_list resumed>) = 0 [pid 5190] ptrace(PTRACE_ATTACH, 5197 [pid 5189] exit_group(0 [pid 5184] <... exit resumed>) = ? [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5194] <... setpgid resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5196] <... prctl resumed>) = 0 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5189] <... exit_group resumed>) = ? [pid 5184] +++ exited with 0 +++ [pid 5196] setpgid(0, 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5196] <... setpgid resumed>) = 0 [pid 5194] <... openat resumed>) = 3 [pid 5190] exit_group(0 [pid 5189] +++ exited with 0 +++ [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5194] write(3, "1000", 4 [pid 5190] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5198 attached [pid 5194] <... write resumed>) = 4 [pid 5190] +++ exited with 0 +++ [pid 5198] set_robust_list(0x555566297660, 24 [pid 5196] <... openat resumed>) = 3 [pid 5194] close(3 [pid 5186] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5198 [pid 5198] <... set_robust_list resumed>) = 0 [pid 5196] write(3, "1000", 4 [pid 5194] <... close resumed>) = 0 [pid 5186] <... exit resumed>) = ? [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] <... write resumed>) = 4 [pid 5194] memfd_create("syzkaller", 0 [pid 5196] close(3 [pid 5186] +++ exited with 0 +++ [pid 5198] <... prctl resumed>) = 0 [pid 5194] <... memfd_create resumed>) = 3 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5198] setpgid(0, 0 [pid 5196] <... close resumed>) = 0 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5198] <... setpgid resumed>) = 0 [pid 5196] memfd_create("syzkaller", 0 [pid 5194] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5196] <... memfd_create resumed>) = 3 [pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5187] exit(0 [pid 5198] <... openat resumed>) = 3 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5187] <... exit resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] write(3, "1000", 4 [pid 5196] <... mmap resumed>) = 0x7f9e50600000 [pid 5198] <... write resumed>) = 4 [pid 5198] close(3 [pid 5187] +++ exited with 0 +++ [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached ./strace-static-x86_64: Process 5200 attached [pid 5199] set_robust_list(0x555566297660, 24 [pid 5198] <... close resumed>) = 0 [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5194] <... write resumed>) = 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5199 [pid 5200] set_robust_list(0x555566297660, 24 [pid 5199] <... set_robust_list resumed>) = 0 [pid 5198] memfd_create("syzkaller", 0 [pid 5196] <... write resumed>) = 1048576 [pid 5194] munmap(0x7f9e50600000, 138412032 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5200 [pid 5200] <... set_robust_list resumed>) = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5198] <... memfd_create resumed>) = 3 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5199] <... prctl resumed>) = 0 [pid 5196] munmap(0x7f9e50600000, 138412032 [pid 5194] <... munmap resumed>) = 0 [pid 5200] <... prctl resumed>) = 0 [pid 5199] setpgid(0, 0 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5196] <... munmap resumed>) = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5200] setpgid(0, 0 [pid 5199] <... setpgid resumed>) = 0 [pid 5198] <... mmap resumed>) = 0x7f9e50600000 [pid 5200] <... setpgid resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5196] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5194] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5199] <... openat resumed>) = 3 [pid 5196] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5194] close(3 [pid 5196] close(3 [pid 5198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5194] <... close resumed>) = 0 [pid 5200] <... openat resumed>) = 3 [pid 5199] write(3, "1000", 4 [pid 5200] write(3, "1000", 4 [pid 5199] <... write resumed>) = 4 [pid 5200] <... write resumed>) = 4 [pid 5199] close(3 [pid 5196] <... close resumed>) = 0 [pid 5200] close(3 [pid 5199] <... close resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5199] memfd_create("syzkaller", 0 [pid 5200] memfd_create("syzkaller", 0 [pid 5199] <... memfd_create resumed>) = 3 [pid 5200] <... memfd_create resumed>) = 3 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5198] <... write resumed>) = 1048576 [pid 5196] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5194] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5196] <... openat resumed>) = 3 [pid 5196] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5201 attached [pid 5194] <... openat resumed>) = 3 [pid 5194] clone(child_stack=NULL, flags=0 [pid 5191] exit(0) = ? [pid 5196] <... clone resumed>) = 5201 [pid 5196] ptrace(PTRACE_ATTACH, 5201 [pid 5192] exit(0 [pid 5196] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5192] <... exit resumed>) = ? ./strace-static-x86_64: Process 5202 attached [pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5196] exit_group(0 [pid 5192] +++ exited with 0 +++ [pid 5191] +++ exited with 0 +++ [pid 5196] <... exit_group resumed>) = ? [pid 5194] <... clone resumed>) = 5202 [pid 5196] +++ exited with 0 +++ [pid 5194] ptrace(PTRACE_ATTACH, 5202) = -1 EPERM (Operation not permitted) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5194] exit_group(0) = ? [pid 5194] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5198] munmap(0x7f9e50600000, 138412032 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] <... munmap resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x555566297660, 24) = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5198] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5203] <... prctl resumed>) = 0 [pid 5198] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5203] setpgid(0, 0) = 0 [pid 5198] close(3 [pid 5199] <... write resumed>) = 1048576 [pid 5198] <... close resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5200] <... write resumed>) = 1048576 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] munmap(0x7f9e50600000, 138412032 [pid 5203] <... openat resumed>) = 3 [pid 5200] <... munmap resumed>) = 0 [pid 5193] exit(0) = ? [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] memfd_create("syzkaller", 0) = 3 [pid 5200] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5199] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5204 attached [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5204 [pid 5204] set_robust_list(0x555566297660, 24 [pid 5203] <... mmap resumed>) = 0x7f9e50600000 [pid 5204] <... set_robust_list resumed>) = 0 [pid 5200] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5199] <... munmap resumed>) = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] close(3 [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5204] <... prctl resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5198] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5204] setpgid(0, 0 [pid 5200] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5195] exit(0 [pid 5204] <... setpgid resumed>) = 0 [pid 5199] close(3 [pid 5198] <... openat resumed>) = 3 [pid 5197] exit(0 [pid 5195] <... exit resumed>) = ? [pid 5198] clone(child_stack=NULL, flags=0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5205 attached [pid 5197] <... exit resumed>) = ? [pid 5204] <... openat resumed>) = 3 [pid 5203] <... write resumed>) = 1048576 [pid 5200] <... openat resumed>) = 3 [pid 5199] <... close resumed>) = 0 [pid 5198] <... clone resumed>) = 5205 [pid 5195] +++ exited with 0 +++ [pid 5199] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5197] +++ exited with 0 +++ [pid 5204] write(3, "1000", 4 [pid 5198] ptrace(PTRACE_ATTACH, 5205 [pid 5204] <... write resumed>) = 4 [pid 5200] clone(child_stack=NULL, flags=0 [pid 5199] <... openat resumed>) = 3 [pid 5198] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5204] close(3 [pid 5199] clone(child_stack=NULL, flags=0 [pid 5204] <... close resumed>) = 0 [pid 5198] exit_group(0 [pid 5203] munmap(0x7f9e50600000, 138412032 [pid 5204] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5206 attached ./strace-static-x86_64: Process 5207 attached ) = 3 [pid 5203] <... munmap resumed>) = 0 [pid 5200] <... clone resumed>) = 5206 [pid 5198] <... exit_group resumed>) = ? [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] ptrace(PTRACE_ATTACH, 5206 [pid 5199] <... clone resumed>) = 5207 [pid 5203] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5200] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5204] <... mmap resumed>) = 0x7f9e50600000 [pid 5203] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5200] exit_group(0 [pid 5203] close(3 [pid 5200] <... exit_group resumed>) = ? [pid 5198] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5199] ptrace(PTRACE_ATTACH, 5207 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5199] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5203] <... close resumed>) = 0 [pid 5200] +++ exited with 0 +++ [pid 5087] <... restart_syscall resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5199] exit_group(0 [pid 5203] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5199] <... exit_group resumed>) = ? [pid 5204] <... write resumed>) = 1048576 [pid 5203] <... openat resumed>) = 3 [pid 5199] +++ exited with 0 +++ [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5209 attached ./strace-static-x86_64: Process 5208 attached [pid 5204] munmap(0x7f9e50600000, 138412032 [pid 5203] clone(child_stack=NULL, flags=0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5208 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5209 [pid 5209] set_robust_list(0x555566297660, 24) = 0 ./strace-static-x86_64: Process 5210 attached [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5208] set_robust_list(0x555566297660, 24 [pid 5203] <... clone resumed>) = 5210 [pid 5209] <... prctl resumed>) = 0 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5203] ptrace(PTRACE_ATTACH, 5210 [pid 5209] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5211 attached [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] <... munmap resumed>) = 0 [pid 5203] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5211] set_robust_list(0x555566297660, 24 [pid 5208] <... prctl resumed>) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5203] exit_group(0 [pid 5204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5211] <... set_robust_list resumed>) = 0 [pid 5208] setpgid(0, 0 [pid 5204] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5208] <... setpgid resumed>) = 0 [pid 5209] write(3, "1000", 4 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5209] <... write resumed>) = 4 [pid 5209] close(3 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5204] close(3 [pid 5203] <... exit_group resumed>) = ? [pid 5209] <... close resumed>) = 0 [pid 5209] memfd_create("syzkaller", 0) = 3 [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5204] <... close resumed>) = 0 [pid 5209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5203] +++ exited with 0 +++ [pid 5208] <... openat resumed>) = 3 [pid 5211] <... prctl resumed>) = 0 [pid 5208] write(3, "1000", 4 [pid 5204] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5211 [pid 5211] setpgid(0, 0 [pid 5208] <... write resumed>) = 4 [pid 5204] <... openat resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5211] <... setpgid resumed>) = 0 [pid 5208] close(3 [pid 5201] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] <... close resumed>) = 0 [pid 5201] <... exit resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5211] <... openat resumed>) = 3 [pid 5208] memfd_create("syzkaller", 0 [pid 5204] clone(child_stack=NULL, flags=0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5212 attached ./strace-static-x86_64: Process 5213 attached [pid 5211] write(3, "1000", 4 [pid 5208] <... memfd_create resumed>) = 3 [pid 5201] +++ exited with 0 +++ [pid 5209] <... write resumed>) = 1048576 [pid 5212] set_robust_list(0x555566297660, 24 [pid 5211] <... write resumed>) = 4 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5212] <... set_robust_list resumed>) = 0 [pid 5211] close(3 [pid 5209] munmap(0x7f9e50600000, 138412032 [pid 5208] <... mmap resumed>) = 0x7f9e50600000 [pid 5202] exit(0 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] <... close resumed>) = 0 [pid 5209] <... munmap resumed>) = 0 [pid 5204] <... clone resumed>) = 5213 [pid 5202] <... exit resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5212 [pid 5212] <... prctl resumed>) = 0 [pid 5211] memfd_create("syzkaller", 0 [pid 5204] ptrace(PTRACE_ATTACH, 5213 [pid 5202] +++ exited with 0 +++ [pid 5212] setpgid(0, 0 [pid 5211] <... memfd_create resumed>) = 3 [pid 5209] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5204] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5212] <... setpgid resumed>) = 0 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5209] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5204] exit_group(0 [pid 5211] <... mmap resumed>) = 0x7f9e50600000 [pid 5204] <... exit_group resumed>) = ? [pid 5212] <... openat resumed>) = 3 [pid 5209] close(3 [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5212] write(3, "1000", 4 [pid 5209] <... close resumed>) = 0 [pid 5212] <... write resumed>) = 4 [pid 5212] close(3) = 0 [pid 5204] +++ exited with 0 +++ [pid 5212] memfd_create("syzkaller", 0) = 3 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5209] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5208] <... write resumed>) = 1048576 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5208] munmap(0x7f9e50600000, 138412032 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5208] <... munmap resumed>) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5208] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5209] clone(child_stack=NULL, flags=0 [pid 5212] <... write resumed>) = 1048576 [pid 5211] <... write resumed>) = 1048576 [pid 5208] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached [pid 5212] munmap(0x7f9e50600000, 138412032 [pid 5211] munmap(0x7f9e50600000, 138412032 [pid 5208] close(3./strace-static-x86_64: Process 5215 attached [pid 5212] <... munmap resumed>) = 0 [pid 5211] <... munmap resumed>) = 0 [pid 5209] <... clone resumed>) = 5214 [pid 5209] ptrace(PTRACE_ATTACH, 5214) = -1 EPERM (Operation not permitted) [pid 5209] exit_group(0) = ? [pid 5215] set_robust_list(0x555566297660, 24 [pid 5212] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5211] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5209] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5215 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5211] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5211] close(3 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5212] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5208] <... close resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5215] <... prctl resumed>) = 0 [pid 5212] close(3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5215] setpgid(0, 0) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5216 [pid 5211] <... close resumed>) = 0 ./strace-static-x86_64: Process 5216 attached [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5212] <... close resumed>) = 0 [pid 5208] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5205] exit(0 [pid 5206] exit(0 [pid 5205] <... exit resumed>) = ? [pid 5206] <... exit resumed>) = ? [pid 5216] set_robust_list(0x555566297660, 24 [pid 5212] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5211] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5208] <... openat resumed>) = 3 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5215] <... openat resumed>) = 3 [pid 5212] <... openat resumed>) = 3 [pid 5211] <... openat resumed>) = 3 [pid 5206] +++ exited with 0 +++ [pid 5207] exit(0 [pid 5205] +++ exited with 0 +++ [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5215] write(3, "1000", 4 [pid 5208] clone(child_stack=NULL, flags=0 [pid 5207] <... exit resumed>) = ? [pid 5215] <... write resumed>) = 4 [pid 5212] clone(child_stack=NULL, flags=0 [pid 5211] clone(child_stack=NULL, flags=0 [pid 5215] close(3) = 0 [pid 5215] memfd_create("syzkaller", 0) = 3 [pid 5207] +++ exited with 0 +++ ./strace-static-x86_64: Process 5219 attached ./strace-static-x86_64: Process 5218 attached ./strace-static-x86_64: Process 5217 attached [pid 5216] <... prctl resumed>) = 0 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5212] <... clone resumed>) = 5219 [pid 5212] ptrace(PTRACE_ATTACH, 5219) = -1 EPERM (Operation not permitted) [pid 5212] exit_group(0) = ? [pid 5216] setpgid(0, 0 [pid 5215] <... mmap resumed>) = 0x7f9e50600000 [pid 5212] +++ exited with 0 +++ [pid 5211] <... clone resumed>) = 5217 [pid 5208] <... clone resumed>) = 5218 [pid 5216] <... setpgid resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] ptrace(PTRACE_ATTACH, 5217 [pid 5208] ptrace(PTRACE_ATTACH, 5218 [pid 5211] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5208] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5216] <... openat resumed>) = 3 [pid 5211] exit_group(0 [pid 5208] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5211] <... exit_group resumed>) = ? [pid 5208] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5216] write(3, "1000", 4 [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5220 attached [pid 5216] <... write resumed>) = 4 [pid 5211] +++ exited with 0 +++ [pid 5208] +++ exited with 0 +++ [pid 5220] set_robust_list(0x555566297660, 24 [pid 5216] close(3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5220] <... set_robust_list resumed>) = 0 [pid 5216] <... close resumed>) = 0 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5220] <... prctl resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5220] setpgid(0, 0 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5220] <... setpgid resumed>) = 0 [pid 5216] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5220 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5220] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5221 attached [pid 5220] write(3, "1000", 4 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5215] <... write resumed>) = 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5222 attached [pid 5221] set_robust_list(0x555566297660, 24 [pid 5220] <... write resumed>) = 4 [pid 5215] munmap(0x7f9e50600000, 138412032 [pid 5210] exit(0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5221 [pid 5222] set_robust_list(0x555566297660, 24 [pid 5221] <... set_robust_list resumed>) = 0 [pid 5220] close(3 [pid 5215] <... munmap resumed>) = 0 [pid 5210] <... exit resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5222 [pid 5222] <... set_robust_list resumed>) = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5220] <... close resumed>) = 0 [pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5221] <... prctl resumed>) = 0 [pid 5210] +++ exited with 0 +++ [pid 5220] memfd_create("syzkaller", 0 [pid 5222] <... prctl resumed>) = 0 [pid 5221] setpgid(0, 0 [pid 5215] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5220] <... memfd_create resumed>) = 3 [pid 5222] setpgid(0, 0 [pid 5221] <... setpgid resumed>) = 0 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5215] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5222] <... setpgid resumed>) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5220] <... mmap resumed>) = 0x7f9e50600000 [pid 5216] <... write resumed>) = 1048576 [pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5221] <... openat resumed>) = 3 [pid 5215] close(3 [pid 5216] munmap(0x7f9e50600000, 138412032 [pid 5222] <... openat resumed>) = 3 [pid 5221] write(3, "1000", 4 [pid 5216] <... munmap resumed>) = 0 [pid 5221] <... write resumed>) = 4 [pid 5221] close(3 [pid 5222] write(3, "1000", 4 [pid 5221] <... close resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5222] <... write resumed>) = 4 [pid 5221] memfd_create("syzkaller", 0 [pid 5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5222] close(3 [pid 5221] <... memfd_create resumed>) = 3 [pid 5216] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5213] exit(0 [pid 5222] <... close resumed>) = 0 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5213] <... exit resumed>) = ? [pid 5222] memfd_create("syzkaller", 0 [pid 5221] <... mmap resumed>) = 0x7f9e50600000 [pid 5216] close(3 [pid 5213] +++ exited with 0 +++ [pid 5222] <... memfd_create resumed>) = 3 [pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5216] <... close resumed>) = 0 [pid 5215] <... close resumed>) = 0 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5215] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5220] <... write resumed>) = 1048576 [pid 5216] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5215] <... openat resumed>) = 3 [pid 5220] munmap(0x7f9e50600000, 138412032 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5220] <... munmap resumed>) = 0 [pid 5216] <... openat resumed>) = 3 [pid 5215] clone(child_stack=NULL, flags=0 [pid 5216] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5224 attached [pid 5220] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5216] <... clone resumed>) = 5223 ./strace-static-x86_64: Process 5223 attached [pid 5221] <... write resumed>) = 1048576 [pid 5220] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5216] ptrace(PTRACE_ATTACH, 5223 [pid 5215] <... clone resumed>) = 5224 [pid 5220] close(3 [pid 5216] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5220] <... close resumed>) = 0 [pid 5216] exit_group(0 [pid 5215] ptrace(PTRACE_ATTACH, 5224 [pid 5221] munmap(0x7f9e50600000, 138412032) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5216] <... exit_group resumed>) = ? [pid 5215] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5222] <... write resumed>) = 1048576 [pid 5220] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5215] exit_group(0) = ? [pid 5222] munmap(0x7f9e50600000, 138412032 [pid 5221] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5220] <... openat resumed>) = 3 [pid 5216] +++ exited with 0 +++ [pid 5215] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5221] close(3 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5220] clone(child_stack=NULL, flags=0 [pid 5222] <... munmap resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5222] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5225 attached [pid 5220] <... clone resumed>) = 5225 [pid 5222] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5214] exit(0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5226 attached [pid 5222] close(3 [pid 5220] ptrace(PTRACE_ATTACH, 5225 [pid 5214] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5220] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5226 [pid 5226] set_robust_list(0x555566297660, 24 [pid 5222] <... close resumed>) = 0 [pid 5221] <... close resumed>) = 0 [pid 5220] exit_group(0 [pid 5214] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] <... set_robust_list resumed>) = 0 [pid 5222] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5221] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5220] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x555566297660, 24 [pid 5220] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5227 [pid 5227] <... set_robust_list resumed>) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5222] <... openat resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5221] <... openat resumed>) = 3 [pid 5227] <... prctl resumed>) = 0 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5227] setpgid(0, 0 [pid 5221] clone(child_stack=NULL, flags=0 [pid 5226] <... prctl resumed>) = 0 [pid 5222] clone(child_stack=NULL, flags=0 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5227] <... setpgid resumed>) = 0 [pid 5226] setpgid(0, 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5227] <... openat resumed>) = 3 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached [pid 5227] write(3, "1000", 4 [pid 5226] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5230 attached ./strace-static-x86_64: Process 5229 attached [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] set_robust_list(0x555566297660, 24 [pid 5227] <... write resumed>) = 4 [pid 5222] <... clone resumed>) = 5228 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5226] <... openat resumed>) = 3 [pid 5222] ptrace(PTRACE_ATTACH, 5228 [pid 5227] close(3 [pid 5222] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5227] <... close resumed>) = 0 [pid 5226] write(3, "1000", 4 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] memfd_create("syzkaller", 0 [pid 5226] <... write resumed>) = 4 [pid 5222] exit_group(0 [pid 5226] close(3 [pid 5221] <... clone resumed>) = 5229 [pid 5226] <... close resumed>) = 0 [pid 5222] <... exit_group resumed>) = ? [pid 5230] <... prctl resumed>) = 0 [pid 5221] ptrace(PTRACE_ATTACH, 5229 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5230 [pid 5230] setpgid(0, 0) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] <... memfd_create resumed>) = 3 [pid 5226] memfd_create("syzkaller", 0 [pid 5222] +++ exited with 0 +++ [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5221] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5230] write(3, "1000", 4 [pid 5227] <... mmap resumed>) = 0x7f9e50600000 [pid 5226] <... memfd_create resumed>) = 3 [pid 5221] exit_group(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5230] <... write resumed>) = 4 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5221] <... exit_group resumed>) = ? [pid 5230] close(3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5230] <... close resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5230] memfd_create("syzkaller", 0 [pid 5226] <... mmap resumed>) = 0x7f9e50600000 [pid 5230] <... memfd_create resumed>) = 3 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5221] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5231 [pid 5226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5231 attached [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5219] exit(0 [pid 5218] exit(0 [pid 5217] exit(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5231] set_robust_list(0x555566297660, 24 [pid 5218] <... exit resumed>) = ? [pid 5217] <... exit resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5219] <... exit resumed>) = ? [pid 5231] <... set_robust_list resumed>) = 0 [pid 5219] +++ exited with 0 +++ [pid 5217] +++ exited with 0 +++ ./strace-static-x86_64: Process 5232 attached [pid 5218] +++ exited with 0 +++ [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5232] set_robust_list(0x555566297660, 24) = 0 [pid 5231] setpgid(0, 0 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5232 [pid 5232] <... prctl resumed>) = 0 [pid 5231] <... setpgid resumed>) = 0 [pid 5232] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... write resumed>) = 1048576 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5227] <... write resumed>) = 1048576 [pid 5231] <... openat resumed>) = 3 [pid 5227] munmap(0x7f9e50600000, 138412032 [pid 5231] write(3, "1000", 4) = 4 [pid 5227] <... munmap resumed>) = 0 [pid 5231] close(3 [pid 5232] <... openat resumed>) = 3 [pid 5231] <... close resumed>) = 0 [pid 5232] write(3, "1000", 4 [pid 5231] memfd_create("syzkaller", 0 [pid 5232] <... write resumed>) = 4 [pid 5232] close(3) = 0 [pid 5231] <... memfd_create resumed>) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5230] munmap(0x7f9e50600000, 138412032 [pid 5227] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5226] <... write resumed>) = 1048576 [pid 5232] memfd_create("syzkaller", 0 [pid 5231] <... mmap resumed>) = 0x7f9e50600000 [pid 5230] <... munmap resumed>) = 0 [pid 5227] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5226] munmap(0x7f9e50600000, 138412032 [pid 5232] <... memfd_create resumed>) = 3 [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5230] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5227] close(3 [pid 5226] <... munmap resumed>) = 0 [pid 5230] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5230] close(3 [pid 5226] close(3 [pid 5231] <... write resumed>) = 1048576 [pid 5232] <... write resumed>) = 1048576 [pid 5231] munmap(0x7f9e50600000, 138412032 [pid 5230] <... close resumed>) = 0 [pid 5227] <... close resumed>) = 0 [pid 5226] <... close resumed>) = 0 [pid 5227] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5232] munmap(0x7f9e50600000, 138412032 [pid 5227] <... openat resumed>) = 3 [pid 5231] <... munmap resumed>) = 0 [pid 5230] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5227] clone(child_stack=NULL, flags=0 [pid 5226] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5233 attached [pid 5232] <... munmap resumed>) = 0 [pid 5230] <... openat resumed>) = 3 [pid 5226] <... openat resumed>) = 3 [pid 5224] exit(0 [pid 5231] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5230] clone(child_stack=NULL, flags=0 [pid 5227] <... clone resumed>) = 5233 [pid 5226] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5235 attached ./strace-static-x86_64: Process 5234 attached [pid 5232] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5227] ptrace(PTRACE_ATTACH, 5233 [pid 5224] <... exit resumed>) = ? [pid 5223] exit(0 [pid 5231] close(3 [pid 5227] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5227] exit_group(0) = ? [pid 5232] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5227] +++ exited with 0 +++ [pid 5224] +++ exited with 0 +++ [pid 5223] <... exit resumed>) = ? [pid 5230] <... clone resumed>) = 5234 [pid 5226] <... clone resumed>) = 5235 [pid 5230] ptrace(PTRACE_ATTACH, 5234 [pid 5226] ptrace(PTRACE_ATTACH, 5235 [pid 5230] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5226] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5225] exit(0 [pid 5230] exit_group(0 [pid 5226] exit_group(0 [pid 5225] <... exit resumed>) = ? [pid 5223] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5232] close(3 [pid 5226] <... exit_group resumed>) = ? [pid 5225] +++ exited with 0 +++ [pid 5230] <... exit_group resumed>) = ? [pid 5226] +++ exited with 0 +++ [pid 5230] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached ./strace-static-x86_64: Process 5236 attached [pid 5237] set_robust_list(0x555566297660, 24 [pid 5236] set_robust_list(0x555566297660, 24 [pid 5232] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5236 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5237 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5237] <... prctl resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] setpgid(0, 0./strace-static-x86_64: Process 5238 attached ) = 0 [pid 5236] <... set_robust_list resumed>) = 0 [pid 5232] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5238] set_robust_list(0x555566297660, 24 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] <... set_robust_list resumed>) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... prctl resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5238 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5237] <... openat resumed>) = 3 [pid 5236] setpgid(0, 0 [pid 5231] <... close resumed>) = 0 [pid 5236] <... setpgid resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=0 [pid 5237] write(3, "1000", 4 [pid 5238] <... prctl resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5239 attached [pid 5238] setpgid(0, 0 [pid 5237] <... write resumed>) = 4 [pid 5236] <... openat resumed>) = 3 [pid 5238] <... setpgid resumed>) = 0 [pid 5237] close(3 [pid 5231] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] <... close resumed>) = 0 [pid 5236] write(3, "1000", 4 [pid 5231] <... openat resumed>) = 3 [pid 5228] exit(0 [pid 5237] memfd_create("syzkaller", 0 [pid 5236] <... write resumed>) = 4 [pid 5232] <... clone resumed>) = 5239 [pid 5231] clone(child_stack=NULL, flags=0 [pid 5228] <... exit resumed>) = ? [pid 5238] <... openat resumed>) = 3 [pid 5237] <... memfd_create resumed>) = 3 [pid 5236] close(3 [pid 5232] ptrace(PTRACE_ATTACH, 5239 [pid 5228] +++ exited with 0 +++ [pid 5229] exit(0 [pid 5238] write(3, "1000", 4 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5236] <... close resumed>) = 0 [pid 5229] <... exit resumed>) = ? [pid 5238] <... write resumed>) = 4 [pid 5237] <... mmap resumed>) = 0x7f9e50600000 [pid 5236] memfd_create("syzkaller", 0) = 3 [pid 5232] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5240 attached [pid 5238] close(3 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] exit_group(0 [pid 5236] <... mmap resumed>) = 0x7f9e50600000 [pid 5232] <... exit_group resumed>) = ? [pid 5231] <... clone resumed>) = 5240 [pid 5238] <... close resumed>) = 0 [pid 5238] memfd_create("syzkaller", 0 [pid 5232] +++ exited with 0 +++ [pid 5229] +++ exited with 0 +++ [pid 5231] ptrace(PTRACE_ATTACH, 5240 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5238] <... memfd_create resumed>) = 3 [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5231] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5231] exit_group(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5231] <... exit_group resumed>) = ? [pid 5238] <... mmap resumed>) = 0x7f9e50600000 [pid 5231] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5241 attached [pid 5241] set_robust_list(0x555566297660, 24) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5241] setpgid(0, 0) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5242 attached ) = 3 [pid 5242] set_robust_list(0x555566297660, 24 [pid 5237] <... write resumed>) = 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5241 [pid 5236] <... write resumed>) = 1048576 [pid 5242] <... set_robust_list resumed>) = 0 [pid 5241] write(3, "1000", 4 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... write resumed>) = 4 [pid 5242] <... prctl resumed>) = 0 [pid 5241] close(3 [pid 5242] setpgid(0, 0 [pid 5241] <... close resumed>) = 0 [pid 5242] <... setpgid resumed>) = 0 [pid 5241] memfd_create("syzkaller", 0 [pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5242 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] <... memfd_create resumed>) = 3 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5242] <... openat resumed>) = 3 [pid 5237] munmap(0x7f9e50600000, 138412032 [pid 5241] <... mmap resumed>) = 0x7f9e50600000 [pid 5236] munmap(0x7f9e50600000, 138412032 [pid 5242] write(3, "1000", 4 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5237] <... munmap resumed>) = 0 [pid 5236] <... munmap resumed>) = 0 [pid 5242] <... write resumed>) = 4 [pid 5237] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5242] close(3 [pid 5237] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5237] close(3 [pid 5242] <... close resumed>) = 0 [pid 5242] memfd_create("syzkaller", 0) = 3 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5242] <... mmap resumed>) = 0x7f9e50600000 [pid 5236] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5236] close(3 [pid 5237] <... close resumed>) = 0 [pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5238] <... write resumed>) = 1048576 [pid 5237] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5238] munmap(0x7f9e50600000, 138412032 [pid 5237] <... openat resumed>) = 3 [pid 5237] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5243 attached [pid 5242] <... write resumed>) = 1048576 [pid 5238] <... munmap resumed>) = 0 [pid 5236] <... close resumed>) = 0 [pid 5241] <... write resumed>) = 1048576 [pid 5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5237] <... clone resumed>) = 5243 [pid 5237] ptrace(PTRACE_ATTACH, 5243 [pid 5236] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5237] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5238] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5237] exit_group(0 [pid 5236] <... openat resumed>) = 3 [pid 5236] clone(child_stack=NULL, flags=0 [pid 5238] close(3./strace-static-x86_64: Process 5244 attached [pid 5236] <... clone resumed>) = 5244 [pid 5236] ptrace(PTRACE_ATTACH, 5244 [pid 5241] munmap(0x7f9e50600000, 138412032 [pid 5236] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5241] <... munmap resumed>) = 0 [pid 5237] <... exit_group resumed>) = ? [pid 5236] exit_group(0) = ? [pid 5237] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5242] munmap(0x7f9e50600000, 138412032 [pid 5241] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5242] <... munmap resumed>) = 0 [pid 5241] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5238] <... close resumed>) = 0 [pid 5236] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5238] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5241] close(3 [pid 5090] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5245 attached [pid 5242] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5241] <... close resumed>) = 0 [pid 5238] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5245 [pid 5245] set_robust_list(0x555566297660, 24 [pid 5242] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5238] clone(child_stack=NULL, flags=0 [pid 5245] <... set_robust_list resumed>) = 0 [pid 5242] close(3./strace-static-x86_64: Process 5246 attached [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] <... close resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5245] <... prctl resumed>) = 0 [pid 5241] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5245] setpgid(0, 0 [pid 5238] <... clone resumed>) = 5246 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] exit(0 [pid 5241] <... openat resumed>) = 3 [pid 5241] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5248 attached [pid 5245] <... setpgid resumed>) = 0 [pid 5238] ptrace(PTRACE_ATTACH, 5246 [pid 5235] exit(0 [pid 5234] <... exit resumed>) = ? [pid 5233] exit(0./strace-static-x86_64: Process 5247 attached [pid 5235] <... exit resumed>) = ? [pid 5247] set_robust_list(0x555566297660, 24 [pid 5242] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5247] <... set_robust_list resumed>) = 0 [pid 5242] <... openat resumed>) = 3 [pid 5241] <... clone resumed>) = 5248 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5234] +++ exited with 0 +++ [pid 5233] <... exit resumed>) = ? [pid 5247] <... prctl resumed>) = 0 [pid 5242] clone(child_stack=NULL, flags=0 [pid 5241] ptrace(PTRACE_ATTACH, 5248 [pid 5247] setpgid(0, 0) = 0 [pid 5235] +++ exited with 0 +++ [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] exit_group(0 [pid 5238] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5241] <... exit_group resumed>) = ? [pid 5247] <... openat resumed>) = 3 [pid 5245] <... openat resumed>) = 3 [pid 5241] +++ exited with 0 +++ [pid 5238] exit_group(0 [pid 5233] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5247 ./strace-static-x86_64: Process 5249 attached [pid 5247] write(3, "1000", 4 [pid 5238] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5247] <... write resumed>) = 4 [pid 5245] write(3, "1000", 4 [pid 5242] <... clone resumed>) = 5249 [pid 5247] close(3 [pid 5242] ptrace(PTRACE_ATTACH, 5249 [pid 5247] <... close resumed>) = 0 [pid 5245] <... write resumed>) = 4 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5247] memfd_create("syzkaller", 0 [pid 5245] close(3 [pid 5242] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5247] <... memfd_create resumed>) = 3 [pid 5242] exit_group(0 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5242] <... exit_group resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5250 attached [pid 5245] <... close resumed>) = 0 [pid 5242] +++ exited with 0 +++ [pid 5238] +++ exited with 0 +++ [pid 5250] set_robust_list(0x555566297660, 24) = 0 [pid 5245] memfd_create("syzkaller", 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5250 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5245] <... memfd_create resumed>) = 3 [pid 5250] <... prctl resumed>) = 0 [pid 5250] setpgid(0, 0 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5250] <... setpgid resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5245] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5250] write(3, "1000", 4) = 4 [pid 5250] close(3) = 0 [pid 5250] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 5251 attached [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5247] <... write resumed>) = 1048576 [pid 5245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] set_robust_list(0x555566297660, 24 [pid 5250] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5252 attached [pid 5239] exit(0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5251 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] set_robust_list(0x555566297660, 24 [pid 5239] <... exit resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5252 [pid 5251] <... prctl resumed>) = 0 [pid 5240] exit(0 [pid 5251] setpgid(0, 0 [pid 5240] <... exit resumed>) = ? [pid 5251] <... setpgid resumed>) = 0 [pid 5240] +++ exited with 0 +++ [pid 5239] +++ exited with 0 +++ [pid 5252] <... set_robust_list resumed>) = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3 [pid 5252] <... prctl resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5252] setpgid(0, 0 [pid 5251] memfd_create("syzkaller", 0 [pid 5252] <... setpgid resumed>) = 0 [pid 5251] <... memfd_create resumed>) = 3 [pid 5250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5245] <... write resumed>) = 1048576 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] <... write resumed>) = 1048576 [pid 5245] munmap(0x7f9e50600000, 138412032 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5247] munmap(0x7f9e50600000, 138412032) = 0 [pid 5251] <... mmap resumed>) = 0x7f9e50600000 [pid 5252] <... openat resumed>) = 3 [pid 5251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5245] <... munmap resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5245] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5252] write(3, "1000", 4 [pid 5247] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5247] close(3 [pid 5252] <... write resumed>) = 4 [pid 5250] munmap(0x7f9e50600000, 138412032 [pid 5247] <... close resumed>) = 0 [pid 5245] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5252] close(3) = 0 [pid 5250] <... munmap resumed>) = 0 [pid 5245] close(3 [pid 5252] memfd_create("syzkaller", 0 [pid 5250] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5250] close(3 [pid 5252] <... memfd_create resumed>) = 3 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5251] <... write resumed>) = 1048576 [pid 5247] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5252] <... mmap resumed>) = 0x7f9e50600000 [pid 5247] <... openat resumed>) = 3 [pid 5251] munmap(0x7f9e50600000, 138412032 [pid 5247] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5253 attached [pid 5251] <... munmap resumed>) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5251] close(3) = 0 [pid 5245] <... close resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5247] <... clone resumed>) = 5253 [pid 5250] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5247] ptrace(PTRACE_ATTACH, 5253 [pid 5250] <... openat resumed>) = 3 [pid 5247] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5250] clone(child_stack=NULL, flags=0 [pid 5247] exit_group(0 [pid 5252] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5251] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5247] <... exit_group resumed>) = ? [pid 5245] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5254 attached [pid 5252] <... write resumed>) = 1048576 [pid 5251] <... openat resumed>) = 3 [pid 5245] <... openat resumed>) = 3 [pid 5247] +++ exited with 0 +++ [pid 5250] <... clone resumed>) = 5254 [pid 5245] clone(child_stack=NULL, flags=0 [pid 5244] exit(0 [pid 5243] exit(0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5252] munmap(0x7f9e50600000, 138412032 [pid 5251] clone(child_stack=NULL, flags=0 [pid 5250] ptrace(PTRACE_ATTACH, 5254 [pid 5244] <... exit resumed>) = ? [pid 5243] <... exit resumed>) = ? ./strace-static-x86_64: Process 5255 attached [pid 5250] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5244] +++ exited with 0 +++ [pid 5243] +++ exited with 0 +++ ./strace-static-x86_64: Process 5256 attached [pid 5245] <... clone resumed>) = 5255 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5252] <... munmap resumed>) = 0 [pid 5250] exit_group(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5252] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5251] <... clone resumed>) = 5256 [pid 5250] <... exit_group resumed>) = ? [pid 5252] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5245] ptrace(PTRACE_ATTACH, 5255 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] close(3 [pid 5251] ptrace(PTRACE_ATTACH, 5256 [pid 5250] +++ exited with 0 +++ [pid 5245] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5257 attached [pid 5251] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5257] set_robust_list(0x555566297660, 24 [pid 5251] exit_group(0 [pid 5245] exit_group(0 [pid 5257] <... set_robust_list resumed>) = 0 [pid 5245] <... exit_group resumed>) = ? [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] <... close resumed>) = 0 [pid 5251] <... exit_group resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5257 [pid 5257] <... prctl resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5257] setpgid(0, 0 [pid 5245] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5257] <... setpgid resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5252] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5252] <... openat resumed>) = 3 [pid 5251] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5259 attached [pid 5257] <... openat resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5258 attached [pid 5259] set_robust_list(0x555566297660, 24 [pid 5252] clone(child_stack=NULL, flags=0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5259 [pid 5087] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5260 attached [pid 5259] <... set_robust_list resumed>) = 0 [pid 5258] set_robust_list(0x555566297660, 24 [pid 5257] write(3, "1000", 4 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5258 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... write resumed>) = 4 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5259] <... prctl resumed>) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] close(3 [pid 5252] <... clone resumed>) = 5260 [pid 5248] exit(0 [pid 5246] exit(0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5248] <... exit resumed>) = ? [pid 5259] <... openat resumed>) = 3 [pid 5252] ptrace(PTRACE_ATTACH, 5260 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5252] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5246] <... exit resumed>) = ? [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5259] write(3, "1000", 4 [pid 5252] exit_group(0 [pid 5259] <... write resumed>) = 4 [pid 5252] <... exit_group resumed>) = ? [pid 5259] close(3 [pid 5249] exit(0 [pid 5259] <... close resumed>) = 0 [pid 5257] <... close resumed>) = 0 [pid 5252] +++ exited with 0 +++ ./strace-static-x86_64: Process 5261 attached [pid 5259] memfd_create("syzkaller", 0 [pid 5249] <... exit resumed>) = ? [pid 5248] +++ exited with 0 +++ [pid 5258] <... prctl resumed>) = 0 [pid 5261] set_robust_list(0x555566297660, 24 [pid 5259] <... memfd_create resumed>) = 3 [pid 5257] memfd_create("syzkaller", 0 [pid 5249] +++ exited with 0 +++ [pid 5246] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5261 [pid 5257] <... memfd_create resumed>) = 3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5258] setpgid(0, 0 [pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5258] <... setpgid resumed>) = 0 [pid 5261] <... set_robust_list resumed>) = 0 [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5259] <... mmap resumed>) = 0x7f9e50600000 [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... mmap resumed>) = 0x7f9e50600000 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5261] <... prctl resumed>) = 0 [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5262 attached [pid 5261] write(3, "1000", 4 [pid 5259] <... write resumed>) = 1048576 [pid 5258] <... openat resumed>) = 3 [pid 5257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5262 [pid 5261] <... write resumed>) = 4 [pid 5259] munmap(0x7f9e50600000, 138412032 [pid 5262] set_robust_list(0x555566297660, 24 [pid 5261] close(3 [pid 5259] <... munmap resumed>) = 0 [pid 5258] write(3, "1000", 4 [pid 5261] <... close resumed>) = 0 [pid 5261] memfd_create("syzkaller", 0 [pid 5258] <... write resumed>) = 4 [pid 5262] <... set_robust_list resumed>) = 0 [pid 5258] close(3 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5261] <... memfd_create resumed>) = 3 [pid 5258] <... close resumed>) = 0 [pid 5262] <... prctl resumed>) = 0 [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5259] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5262] setpgid(0, 0 [pid 5261] <... mmap resumed>) = 0x7f9e50600000 [pid 5258] memfd_create("syzkaller", 0 [pid 5262] <... setpgid resumed>) = 0 [pid 5259] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5258] <... memfd_create resumed>) = 3 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5259] close(3 [pid 5258] <... mmap resumed>) = 0x7f9e50600000 [pid 5262] <... openat resumed>) = 3 [pid 5259] <... close resumed>) = 0 [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5262] write(3, "1000", 4 [pid 5261] <... write resumed>) = 1048576 [pid 5259] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5257] <... write resumed>) = 1048576 [pid 5262] <... write resumed>) = 4 [pid 5262] close(3) = 0 [pid 5262] memfd_create("syzkaller", 0 [pid 5259] <... openat resumed>) = 3 [pid 5257] munmap(0x7f9e50600000, 138412032 [pid 5262] <... memfd_create resumed>) = 3 [pid 5262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5257] <... munmap resumed>) = 0 [pid 5259] clone(child_stack=NULL, flags=0 [pid 5257] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5262] <... mmap resumed>) = 0x7f9e50600000 [pid 5257] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5257] close(3 [pid 5261] munmap(0x7f9e50600000, 138412032) = 0 [pid 5259] <... clone resumed>) = 5263 [pid 5259] ptrace(PTRACE_ATTACH, 5263) = -1 EPERM (Operation not permitted) [pid 5259] exit_group(0) = ? [pid 5259] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5263 attached ) = -1 EBUSY (Device or resource busy) [pid 5258] <... write resumed>) = 1048576 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5261] close(3./strace-static-x86_64: Process 5264 attached [pid 5262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5258] munmap(0x7f9e50600000, 138412032 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5264 [pid 5264] set_robust_list(0x555566297660, 24) = 0 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4) = 4 [pid 5264] close(3) = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5253] exit(0 [pid 5264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5258] <... munmap resumed>) = 0 [pid 5257] <... close resumed>) = 0 [pid 5253] <... exit resumed>) = ? [pid 5261] <... close resumed>) = 0 [pid 5261] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5257] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5261] clone(child_stack=NULL, flags=0 [pid 5258] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5257] <... openat resumed>) = 3 [pid 5253] +++ exited with 0 +++ [pid 5261] <... clone resumed>) = 5265 [pid 5261] ptrace(PTRACE_ATTACH, 5265 [pid 5258] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5258] close(3 [pid 5261] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5261] exit_group(0./strace-static-x86_64: Process 5265 attached ) = ? [pid 5257] clone(child_stack=NULL, flags=0 [pid 5261] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5266 attached [pid 5262] <... write resumed>) = 1048576 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5254] exit(0) = ? [pid 5262] munmap(0x7f9e50600000, 138412032 [pid 5257] <... clone resumed>) = 5266 [pid 5254] +++ exited with 0 +++ ./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x555566297660, 24 [pid 5262] <... munmap resumed>) = 0 [pid 5257] ptrace(PTRACE_ATTACH, 5266 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5267 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5267] <... prctl resumed>) = 0 [pid 5267] setpgid(0, 0 [pid 5255] exit(0 [pid 5267] <... setpgid resumed>) = 0 [pid 5257] exit_group(0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5256] exit(0 [pid 5255] <... exit resumed>) = ? [pid 5267] <... openat resumed>) = 3 [pid 5262] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5258] <... close resumed>) = 0 [pid 5257] <... exit_group resumed>) = ? [pid 5256] <... exit resumed>) = ? [pid 5255] +++ exited with 0 +++ [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3 [pid 5264] <... write resumed>) = 1048576 [pid 5262] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5258] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5257] +++ exited with 0 +++ [pid 5256] +++ exited with 0 +++ [pid 5267] <... close resumed>) = 0 [pid 5264] munmap(0x7f9e50600000, 138412032 [pid 5262] close(3 [pid 5267] memfd_create("syzkaller", 0 [pid 5264] <... munmap resumed>) = 0 [pid 5258] <... openat resumed>) = 3 [pid 5267] <... memfd_create resumed>) = 3 [pid 5264] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5258] clone(child_stack=NULL, flags=0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5264] close(3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5267] <... mmap resumed>) = 0x7f9e50600000 [pid 5264] <... close resumed>) = 0 ./strace-static-x86_64: Process 5268 attached [pid 5262] <... close resumed>) = 0 [pid 5258] <... clone resumed>) = 5268 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5262] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5260] exit(0 [pid 5258] ptrace(PTRACE_ATTACH, 5268 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5264] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5262] <... openat resumed>) = 3 [pid 5260] <... exit resumed>) = ? [pid 5258] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5264] <... openat resumed>) = 3 [pid 5258] exit_group(0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5269 [pid 5269] set_robust_list(0x555566297660, 24 [pid 5264] clone(child_stack=NULL, flags=0 [pid 5260] +++ exited with 0 +++ [pid 5258] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5270 attached [pid 5269] <... set_robust_list resumed>) = 0 [pid 5262] clone(child_stack=NULL, flags=0 [pid 5258] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5264] <... clone resumed>) = 5270 [pid 5264] ptrace(PTRACE_ATTACH, 5270./strace-static-x86_64: Process 5271 attached ./strace-static-x86_64: Process 5272 attached [pid 5269] <... prctl resumed>) = 0 [pid 5267] <... write resumed>) = 1048576 [pid 5264] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5271 [pid 5271] set_robust_list(0x555566297660, 24 [pid 5269] setpgid(0, 0 [pid 5267] munmap(0x7f9e50600000, 138412032 [pid 5264] exit_group(0 [pid 5271] <... set_robust_list resumed>) = 0 [pid 5269] <... setpgid resumed>) = 0 [pid 5264] <... exit_group resumed>) = ? [pid 5262] <... clone resumed>) = 5272 [pid 5267] <... munmap resumed>) = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] +++ exited with 0 +++ [pid 5262] ptrace(PTRACE_ATTACH, 5272 [pid 5271] <... prctl resumed>) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5262] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5271] setpgid(0, 0 [pid 5262] exit_group(0 [pid 5271] <... setpgid resumed>) = 0 [pid 5269] <... openat resumed>) = 3 [pid 5267] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5262] <... exit_group resumed>) = ? [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5269] write(3, "1000", 4 [pid 5267] close(3 [pid 5262] +++ exited with 0 +++ [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5269] <... write resumed>) = 4 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} --- [pid 5088] <... restart_syscall resumed>) = 0 [pid 5269] close(3) = 0 [pid 5269] memfd_create("syzkaller", 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5271] <... openat resumed>) = 3 [pid 5271] write(3, "1000", 4 [pid 5269] <... memfd_create resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5269] <... mmap resumed>) = 0x7f9e50600000 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5271] <... write resumed>) = 4 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5271] close(3) = 0 [pid 5271] memfd_create("syzkaller", 0 [pid 5267] <... close resumed>) = 0 ./strace-static-x86_64: Process 5273 attached [pid 5271] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5274 attached [pid 5274] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5274 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5274] setpgid(0, 0 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5273 [pid 5273] set_robust_list(0x555566297660, 24 [pid 5274] <... setpgid resumed>) = 0 [pid 5273] <... set_robust_list resumed>) = 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5271] <... mmap resumed>) = 0x7f9e50600000 [pid 5267] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] <... openat resumed>) = 3 [pid 5274] write(3, "1000", 4) = 4 [pid 5274] close(3) = 0 [pid 5274] memfd_create("syzkaller", 0 [pid 5273] <... prctl resumed>) = 0 [pid 5273] setpgid(0, 0 [pid 5274] <... memfd_create resumed>) = 3 [pid 5267] <... openat resumed>) = 3 [pid 5274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5273] <... setpgid resumed>) = 0 [pid 5274] <... mmap resumed>) = 0x7f9e50600000 [pid 5267] clone(child_stack=NULL, flags=0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5275 attached ) = 3 [pid 5267] <... clone resumed>) = 5275 [pid 5273] write(3, "1000", 4 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5267] ptrace(PTRACE_ATTACH, 5275 [pid 5273] <... write resumed>) = 4 [pid 5274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5267] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5273] close(3 [pid 5267] exit_group(0 [pid 5273] <... close resumed>) = 0 [pid 5273] memfd_create("syzkaller", 0 [pid 5263] exit(0) = ? [pid 5273] <... memfd_create resumed>) = 3 [pid 5267] <... exit_group resumed>) = ? [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5263] +++ exited with 0 +++ [pid 5273] <... mmap resumed>) = 0x7f9e50600000 [pid 5267] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5271] <... write resumed>) = 1048576 [pid 5269] <... write resumed>) = 1048576 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5269] munmap(0x7f9e50600000, 138412032 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5276 attached [pid 5271] munmap(0x7f9e50600000, 138412032 [pid 5276] set_robust_list(0x555566297660, 24 [pid 5269] <... munmap resumed>) = 0 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5276 [pid 5276] <... prctl resumed>) = 0 [pid 5276] setpgid(0, 0 [pid 5269] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5276] <... setpgid resumed>) = 0 [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5269] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5276] <... openat resumed>) = 3 [pid 5269] close(3 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5276] write(3, "1000", 4) = 4 [pid 5271] <... munmap resumed>) = 0 [pid 5269] <... close resumed>) = 0 [pid 5276] close(3) = 0 [pid 5276] memfd_create("syzkaller", 0) = 3 [pid 5271] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5271] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5271] close(3 [pid 5276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5271] <... close resumed>) = 0 [pid 5265] exit(0) = ? [pid 5265] +++ exited with 0 +++ [pid 5269] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5274] <... write resumed>) = 1048576 [pid 5269] <... openat resumed>) = 3 [pid 5269] clone(child_stack=NULL, flags=0 [pid 5266] exit(0 [pid 5274] munmap(0x7f9e50600000, 138412032 [pid 5266] <... exit resumed>) = ? [pid 5269] <... clone resumed>) = 5277 ./strace-static-x86_64: Process 5277 attached [pid 5269] ptrace(PTRACE_ATTACH, 5277) = -1 EPERM (Operation not permitted) [pid 5266] +++ exited with 0 +++ [pid 5269] exit_group(0 [pid 5274] <... munmap resumed>) = 0 [pid 5269] <... exit_group resumed>) = ? [pid 5269] +++ exited with 0 +++ [pid 5274] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5271] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5274] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5271] <... openat resumed>) = 3 [pid 5274] close(3 [pid 5276] <... write resumed>) = 1048576 [pid 5273] <... write resumed>) = 1048576 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5273] munmap(0x7f9e50600000, 138412032 [pid 5271] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5278 attached [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5278 [pid 5276] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5279 attached [pid 5278] set_robust_list(0x555566297660, 24 [pid 5273] <... munmap resumed>) = 0 [pid 5274] <... close resumed>) = 0 [pid 5278] <... set_robust_list resumed>) = 0 [pid 5276] <... munmap resumed>) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5274] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5271] <... clone resumed>) = 5279 [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5271] ptrace(PTRACE_ATTACH, 5279 [pid 5278] <... prctl resumed>) = 0 [pid 5276] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5273] close(3 [pid 5274] <... openat resumed>) = 3 [pid 5271] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5268] exit(0 [pid 5278] setpgid(0, 0 [pid 5276] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5274] clone(child_stack=NULL, flags=0 [pid 5271] exit_group(0 [pid 5268] <... exit resumed>) = ? [pid 5278] <... setpgid resumed>) = 0 [pid 5271] <... exit_group resumed>) = ? [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5268] +++ exited with 0 +++ [pid 5276] close(3 [pid 5278] <... openat resumed>) = 3 [pid 5276] <... close resumed>) = 0 [pid 5273] <... close resumed>) = 0 [pid 5273] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5278] write(3, "1000", 4 [pid 5271] +++ exited with 0 +++ [pid 5278] <... write resumed>) = 4 [pid 5270] exit(0 [pid 5273] <... openat resumed>) = 3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5270] <... exit resumed>) = ? [pid 5093] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5280 attached [pid 5278] close(3 [pid 5273] clone(child_stack=NULL, flags=0 [pid 5274] <... clone resumed>) = 5280 [pid 5270] +++ exited with 0 +++ [pid 5093] <... restart_syscall resumed>) = 0 [pid 5278] <... close resumed>) = 0 [pid 5278] memfd_create("syzkaller", 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5274] ptrace(PTRACE_ATTACH, 5280 [pid 5278] <... memfd_create resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5274] exit_group(0 [pid 5278] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5282 attached ./strace-static-x86_64: Process 5281 attached [pid 5274] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5282 [pid 5282] set_robust_list(0x555566297660, 24 [pid 5276] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5276] clone(child_stack=NULL, flags=0 [pid 5282] <... set_robust_list resumed>) = 0 [pid 5278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5273] <... clone resumed>) = 5281 [pid 5274] +++ exited with 0 +++ ./strace-static-x86_64: Process 5283 attached [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5278] <... write resumed>) = 1048576 [pid 5273] ptrace(PTRACE_ATTACH, 5281 [pid 5272] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5272] <... exit resumed>) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5282] <... prctl resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5273] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5272] +++ exited with 0 +++ [pid 5282] setpgid(0, 0) = 0 [pid 5273] exit_group(0) = ? [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5278] munmap(0x7f9e50600000, 138412032 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5284 ./strace-static-x86_64: Process 5284 attached [pid 5282] write(3, "1000", 4 [pid 5284] set_robust_list(0x555566297660, 24 [pid 5276] <... clone resumed>) = 5283 [pid 5282] <... write resumed>) = 4 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5278] <... munmap resumed>) = 0 [pid 5282] close(3 [pid 5276] ptrace(PTRACE_ATTACH, 5283 [pid 5273] +++ exited with 0 +++ [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5282] <... close resumed>) = 0 [pid 5276] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5278] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5284] <... prctl resumed>) = 0 [pid 5282] memfd_create("syzkaller", 0 [pid 5276] exit_group(0 [pid 5284] setpgid(0, 0 [pid 5278] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5282] <... memfd_create resumed>) = 3 [pid 5284] <... setpgid resumed>) = 0 [pid 5276] <... exit_group resumed>) = ? [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5278] close(3 [pid 5276] +++ exited with 0 +++ [pid 5282] <... mmap resumed>) = 0x7f9e50600000 [pid 5284] <... openat resumed>) = 3 [pid 5284] write(3, "1000", 4 [pid 5282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5278] <... close resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5284] <... write resumed>) = 4 [pid 5278] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5275] exit(0 [pid 5284] close(3 [pid 5278] <... openat resumed>) = 3 [pid 5275] <... exit resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] <... close resumed>) = 0 [pid 5284] memfd_create("syzkaller", 0 [pid 5282] <... write resumed>) = 1048576 [pid 5278] clone(child_stack=NULL, flags=0 [pid 5275] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5286 attached ./strace-static-x86_64: Process 5285 attached [pid 5284] <... memfd_create resumed>) = 3 [pid 5282] munmap(0x7f9e50600000, 138412032 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5286] set_robust_list(0x555566297660, 24) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5282] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5287 attached [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5284] <... mmap resumed>) = 0x7f9e50600000 [pid 5282] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5286 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5287 [pid 5287] set_robust_list(0x555566297660, 24 [pid 5286] <... prctl resumed>) = 0 [pid 5278] <... clone resumed>) = 5285 [pid 5278] ptrace(PTRACE_ATTACH, 5285) = -1 EPERM (Operation not permitted) [pid 5287] <... set_robust_list resumed>) = 0 [pid 5286] setpgid(0, 0 [pid 5278] exit_group(0 [pid 5282] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5278] <... exit_group resumed>) = ? [pid 5286] <... setpgid resumed>) = 0 [pid 5282] close(3 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5278] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5287] <... prctl resumed>) = 0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5287] setpgid(0, 0) = 0 [pid 5286] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] write(3, "1000", 4 [pid 5287] <... openat resumed>) = 3 [pid 5286] <... write resumed>) = 4 [pid 5287] write(3, "1000", 4 [pid 5286] close(3 [pid 5287] <... write resumed>) = 4 [pid 5286] <... close resumed>) = 0 [pid 5287] close(3./strace-static-x86_64: Process 5288 attached ) = 0 [pid 5286] memfd_create("syzkaller", 0 [pid 5284] <... write resumed>) = 1048576 [pid 5282] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5288 [pid 5288] set_robust_list(0x555566297660, 24 [pid 5287] memfd_create("syzkaller", 0 [pid 5286] <... memfd_create resumed>) = 3 [pid 5282] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5287] <... memfd_create resumed>) = 3 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5286] <... mmap resumed>) = 0x7f9e50600000 [pid 5282] <... openat resumed>) = 3 [pid 5288] <... prctl resumed>) = 0 [pid 5288] setpgid(0, 0) = 0 [pid 5287] <... mmap resumed>) = 0x7f9e50600000 [pid 5282] clone(child_stack=NULL, flags=0 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5288] write(3, "1000", 4) = 4 [pid 5288] close(3) = 0 [pid 5288] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5289 attached [pid 5277] exit(0) = ? [pid 5288] <... memfd_create resumed>) = 3 [pid 5282] <... clone resumed>) = 5289 [pid 5277] +++ exited with 0 +++ [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5284] munmap(0x7f9e50600000, 138412032 [pid 5288] <... mmap resumed>) = 0x7f9e50600000 [pid 5284] <... munmap resumed>) = 0 [pid 5286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5282] ptrace(PTRACE_ATTACH, 5289 [pid 5284] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5284] close(3 [pid 5287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5284] <... close resumed>) = 0 [pid 5282] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5282] exit_group(0 [pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5282] <... exit_group resumed>) = ? [pid 5282] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5284] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5284] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] clone(child_stack=NULL, flags=0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5279] exit(0) = ? [pid 5286] <... write resumed>) = 1048576 [pid 5279] +++ exited with 0 +++ ./strace-static-x86_64: Process 5290 attached ./strace-static-x86_64: Process 5291 attached [pid 5286] munmap(0x7f9e50600000, 138412032 [pid 5291] set_robust_list(0x555566297660, 24 [pid 5284] <... clone resumed>) = 5290 [pid 5291] <... set_robust_list resumed>) = 0 [pid 5284] ptrace(PTRACE_ATTACH, 5290 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5284] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5291 [pid 5286] <... munmap resumed>) = 0 [pid 5284] exit_group(0 [pid 5291] <... prctl resumed>) = 0 [pid 5288] <... write resumed>) = 1048576 [pid 5287] <... write resumed>) = 1048576 [pid 5286] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5284] <... exit_group resumed>) = ? [pid 5291] setpgid(0, 0) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] munmap(0x7f9e50600000, 138412032 [pid 5286] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5280] exit(0 [pid 5286] close(3 [pid 5281] exit(0 [pid 5280] <... exit resumed>) = ? [pid 5291] <... openat resumed>) = 3 [pid 5287] <... munmap resumed>) = 0 [pid 5281] <... exit resumed>) = ? [pid 5291] write(3, "1000", 4 [pid 5281] +++ exited with 0 +++ [pid 5291] <... write resumed>) = 4 [pid 5288] munmap(0x7f9e50600000, 138412032 [pid 5291] close(3 [pid 5288] <... munmap resumed>) = 0 [pid 5291] <... close resumed>) = 0 [pid 5291] memfd_create("syzkaller", 0) = 3 [pid 5288] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5287] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5286] <... close resumed>) = 0 [pid 5280] +++ exited with 0 +++ [pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5288] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5287] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5286] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5291] <... mmap resumed>) = 0x7f9e50600000 [pid 5288] close(3 [pid 5287] close(3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5286] <... openat resumed>) = 3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] clone(child_stack=NULL, flags=0 [pid 5283] exit(0./strace-static-x86_64: Process 5293 attached [pid 5291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5288] <... close resumed>) = 0 [pid 5287] <... close resumed>) = 0 [pid 5283] <... exit resumed>) = ? ./strace-static-x86_64: Process 5292 attached [pid 5288] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5293] set_robust_list(0x555566297660, 24 [pid 5291] <... write resumed>) = 1048576 [pid 5288] <... openat resumed>) = 3 [pid 5287] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5286] <... clone resumed>) = 5292 [pid 5283] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5293 [pid 5293] <... set_robust_list resumed>) = 0 [pid 5291] munmap(0x7f9e50600000, 138412032 [pid 5288] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5294 attached [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5291] <... munmap resumed>) = 0 [pid 5287] <... openat resumed>) = 3 [pid 5286] ptrace(PTRACE_ATTACH, 5292 [pid 5293] <... prctl resumed>) = 0 [pid 5293] setpgid(0, 0 [pid 5291] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5293] <... setpgid resumed>) = 0 [pid 5291] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5288] <... clone resumed>) = 5294 [pid 5287] clone(child_stack=NULL, flags=0 [pid 5286] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5295 attached [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5291] close(3 [pid 5288] ptrace(PTRACE_ATTACH, 5294 [pid 5286] exit_group(0 [pid 5293] <... openat resumed>) = 3 [pid 5291] <... close resumed>) = 0 [pid 5288] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5286] <... exit_group resumed>) = ? [pid 5288] exit_group(0) = ? [pid 5287] <... clone resumed>) = 5295 [pid 5293] write(3, "1000", 4 [pid 5288] +++ exited with 0 +++ [pid 5287] ptrace(PTRACE_ATTACH, 5295 [pid 5286] +++ exited with 0 +++ [pid 5285] exit(0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5293] <... write resumed>) = 4 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5285] <... exit resumed>) = ? [pid 5293] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5287] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5293] memfd_create("syzkaller", 0 [pid 5287] exit_group(0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5296 attached [pid 5293] <... memfd_create resumed>) = 3 [pid 5287] <... exit_group resumed>) = ? [pid 5285] +++ exited with 0 +++ [pid 5296] set_robust_list(0x555566297660, 24 [pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5287] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5291] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5296] <... set_robust_list resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5296 [pid 5293] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5297 attached [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5291] <... openat resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5296] <... prctl resumed>) = 0 [pid 5297] set_robust_list(0x555566297660, 24 [pid 5296] setpgid(0, 0 [pid 5291] clone(child_stack=NULL, flags=0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5297 ./strace-static-x86_64: Process 5298 attached [pid 5297] <... set_robust_list resumed>) = 0 [pid 5296] <... setpgid resumed>) = 0 [pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5291] <... clone resumed>) = 5298 [pid 5297] <... prctl resumed>) = 0 [pid 5291] ptrace(PTRACE_ATTACH, 5298 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5291] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5297] setpgid(0, 0 [pid 5291] exit_group(0) = ? [pid 5297] <... setpgid resumed>) = 0 [pid 5296] <... openat resumed>) = 3 [pid 5291] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5289] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5289] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] write(3, "1000", 4 [pid 5289] +++ exited with 0 +++ [pid 5296] <... write resumed>) = 4 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5297] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5300 attached [pid 5297] write(3, "1000", 4 [pid 5296] close(3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5299 ./strace-static-x86_64: Process 5299 attached [pid 5297] <... write resumed>) = 4 [pid 5296] <... close resumed>) = 0 [pid 5300] set_robust_list(0x555566297660, 24 [pid 5299] set_robust_list(0x555566297660, 24 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5299] <... set_robust_list resumed>) = 0 [pid 5297] close(3 [pid 5296] memfd_create("syzkaller", 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5300 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5297] <... close resumed>) = 0 [pid 5296] <... memfd_create resumed>) = 3 [pid 5300] <... prctl resumed>) = 0 [pid 5299] <... prctl resumed>) = 0 [pid 5300] setpgid(0, 0 [pid 5299] setpgid(0, 0 [pid 5297] memfd_create("syzkaller", 0 [pid 5296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5300] <... setpgid resumed>) = 0 [pid 5299] <... setpgid resumed>) = 0 [pid 5296] <... mmap resumed>) = 0x7f9e50600000 [pid 5293] <... write resumed>) = 1048576 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5297] <... memfd_create resumed>) = 3 [pid 5299] <... openat resumed>) = 3 [pid 5299] write(3, "1000", 4 [pid 5293] munmap(0x7f9e50600000, 138412032 [pid 5300] <... openat resumed>) = 3 [pid 5299] <... write resumed>) = 4 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5293] <... munmap resumed>) = 0 [pid 5300] write(3, "1000", 4 [pid 5299] close(3 [pid 5297] <... mmap resumed>) = 0x7f9e50600000 [pid 5300] <... write resumed>) = 4 [pid 5299] <... close resumed>) = 0 [pid 5299] memfd_create("syzkaller", 0 [pid 5293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5299] <... memfd_create resumed>) = 3 [pid 5293] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5293] close(3 [pid 5300] close(3 [pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5296] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5293] <... close resumed>) = 0 [pid 5300] <... close resumed>) = 0 [pid 5293] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5300] memfd_create("syzkaller", 0 [pid 5293] clone(child_stack=NULL, flags=0 [pid 5300] <... memfd_create resumed>) = 3 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5301 attached ) = 0x7f9e50600000 [pid 5290] exit(0 [pid 5293] <... clone resumed>) = 5301 [pid 5293] ptrace(PTRACE_ATTACH, 5301) = -1 EPERM (Operation not permitted) [pid 5293] exit_group(0) = ? [pid 5296] <... write resumed>) = 1048576 [pid 5290] <... exit resumed>) = ? [pid 5293] +++ exited with 0 +++ [pid 5290] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5297] <... write resumed>) = 1048576 [pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5299] <... write resumed>) = 1048576 [pid 5297] munmap(0x7f9e50600000, 138412032 [pid 5296] munmap(0x7f9e50600000, 138412032 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5299] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5302 attached [pid 5300] <... write resumed>) = 1048576 [pid 5299] <... munmap resumed>) = 0 [pid 5297] <... munmap resumed>) = 0 [pid 5296] <... munmap resumed>) = 0 [pid 5302] set_robust_list(0x555566297660, 24 [pid 5300] munmap(0x7f9e50600000, 138412032 [pid 5299] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5297] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5296] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5292] exit(0 [pid 5302] <... set_robust_list resumed>) = 0 [pid 5292] <... exit resumed>) = ? [pid 5297] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5297] close(3 [pid 5296] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5292] +++ exited with 0 +++ [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] <... munmap resumed>) = 0 [pid 5299] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5296] close(3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5302 [pid 5302] <... prctl resumed>) = 0 [pid 5299] close(3 [pid 5302] setpgid(0, 0 [pid 5299] <... close resumed>) = 0 [pid 5297] <... close resumed>) = 0 [pid 5302] <... setpgid resumed>) = 0 [pid 5300] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5300] close(3 [pid 5302] <... openat resumed>) = 3 [pid 5299] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5297] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5296] <... close resumed>) = 0 [pid 5302] write(3, "1000", 4 [pid 5296] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5302] <... write resumed>) = 4 [pid 5294] exit(0 [pid 5302] close(3 [pid 5299] <... openat resumed>) = 3 [pid 5297] <... openat resumed>) = 3 [pid 5296] <... openat resumed>) = 3 [pid 5294] <... exit resumed>) = ? [pid 5302] <... close resumed>) = 0 [pid 5299] clone(child_stack=NULL, flags=0 [pid 5296] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5303 attached [pid 5302] memfd_create("syzkaller", 0 [pid 5300] <... close resumed>) = 0 [pid 5297] clone(child_stack=NULL, flags=0 [pid 5294] +++ exited with 0 +++ [pid 5300] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5295] exit(0 [pid 5300] <... openat resumed>) = 3 [pid 5295] <... exit resumed>) = ? [pid 5302] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5304 attached [pid 5296] <... clone resumed>) = 5304 [pid 5300] clone(child_stack=NULL, flags=0 [pid 5296] ptrace(PTRACE_ATTACH, 5304 [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] <... clone resumed>) = 5303 [pid 5296] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5295] +++ exited with 0 +++ ./strace-static-x86_64: Process 5306 attached ./strace-static-x86_64: Process 5305 attached [pid 5302] <... mmap resumed>) = 0x7f9e50600000 [pid 5300] <... clone resumed>) = 5306 [pid 5299] ptrace(PTRACE_ATTACH, 5303 [pid 5296] exit_group(0 [pid 5297] <... clone resumed>) = 5305 [pid 5300] ptrace(PTRACE_ATTACH, 5306 [pid 5299] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5297] ptrace(PTRACE_ATTACH, 5305 [pid 5296] <... exit_group resumed>) = ? [pid 5300] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5300] exit_group(0 [pid 5299] exit_group(0 [pid 5302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5300] <... exit_group resumed>) = ? [pid 5299] <... exit_group resumed>) = ? [pid 5297] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5296] +++ exited with 0 +++ [pid 5300] +++ exited with 0 +++ [pid 5299] +++ exited with 0 +++ [pid 5297] exit_group(0) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5297] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5307 [pid 5298] exit(0) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5307 attached [pid 5298] +++ exited with 0 +++ [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] <... restart_syscall resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5308 attached [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5308] set_robust_list(0x555566297660, 24 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5302] <... write resumed>) = 1048576 [pid 5302] munmap(0x7f9e50600000, 138412032 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5307] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5309 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5308 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] <... set_robust_list resumed>) = 0 [pid 5302] <... munmap resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5308] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5309 attached [pid 5308] setpgid(0, 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] set_robust_list(0x555566297660, 24 [pid 5308] <... setpgid resumed>) = 0 [pid 5307] <... prctl resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5309] <... set_robust_list resumed>) = 0 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5307] setpgid(0, 0 [pid 5302] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5307] <... setpgid resumed>) = 0 [pid 5302] close(3 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] <... prctl resumed>) = 0 [pid 5308] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5310 attached [pid 5309] setpgid(0, 0 [pid 5310] set_robust_list(0x555566297660, 24 [pid 5309] <... setpgid resumed>) = 0 [pid 5308] write(3, "1000", 4 [pid 5307] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5310 [pid 5310] <... set_robust_list resumed>) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... write resumed>) = 4 [pid 5307] write(3, "1000", 4 [pid 5302] <... close resumed>) = 0 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] <... openat resumed>) = 3 [pid 5308] close(3 [pid 5307] <... write resumed>) = 4 [pid 5302] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5308] <... close resumed>) = 0 [pid 5307] close(3 [pid 5309] write(3, "1000", 4 [pid 5307] <... close resumed>) = 0 [pid 5302] <... openat resumed>) = 3 [pid 5310] <... prctl resumed>) = 0 [pid 5309] <... write resumed>) = 4 [pid 5308] memfd_create("syzkaller", 0 [pid 5307] memfd_create("syzkaller", 0 [pid 5302] clone(child_stack=NULL, flags=0 [pid 5310] setpgid(0, 0 [pid 5309] close(3 [pid 5307] <... memfd_create resumed>) = 3 [pid 5310] <... setpgid resumed>) = 0 [pid 5309] <... close resumed>) = 0 [pid 5308] <... memfd_create resumed>) = 3 [pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5311 attached [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] memfd_create("syzkaller", 0 [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5307] <... mmap resumed>) = 0x7f9e50600000 [pid 5309] <... memfd_create resumed>) = 3 [pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5308] <... mmap resumed>) = 0x7f9e50600000 [pid 5310] <... openat resumed>) = 3 [pid 5309] <... mmap resumed>) = 0x7f9e50600000 [pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5302] <... clone resumed>) = 5311 [pid 5310] write(3, "1000", 4 [pid 5308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5302] ptrace(PTRACE_ATTACH, 5311 [pid 5310] <... write resumed>) = 4 [pid 5307] <... write resumed>) = 1048576 [pid 5302] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5310] close(3 [pid 5302] exit_group(0 [pid 5301] exit(0 [pid 5310] <... close resumed>) = 0 [pid 5302] <... exit_group resumed>) = ? [pid 5301] <... exit resumed>) = ? [pid 5310] memfd_create("syzkaller", 0 [pid 5302] +++ exited with 0 +++ [pid 5301] +++ exited with 0 +++ [pid 5310] <... memfd_create resumed>) = 3 [pid 5307] munmap(0x7f9e50600000, 138412032 [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5307] <... munmap resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5310] <... mmap resumed>) = 0x7f9e50600000 [pid 5308] <... write resumed>) = 1048576 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5307] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] <... restart_syscall resumed>) = 0 [pid 5310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5308] munmap(0x7f9e50600000, 138412032 [pid 5307] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5307] close(3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5308] <... munmap resumed>) = 0 [pid 5308] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5312 attached ) = -1 EBUSY (Device or resource busy) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5312 [pid 5312] set_robust_list(0x555566297660, 24 [pid 5308] close(3 [pid 5309] <... write resumed>) = 1048576 [pid 5307] <... close resumed>) = 0 [pid 5312] <... set_robust_list resumed>) = 0 [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5312] setpgid(0, 0) = 0 [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5312] write(3, "1000", 4) = 4 [pid 5312] close(3) = 0 [pid 5312] memfd_create("syzkaller", 0) = 3 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5310] <... write resumed>) = 1048576 [pid 5308] <... close resumed>) = 0 [pid 5307] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5309] munmap(0x7f9e50600000, 138412032 [pid 5308] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5307] <... openat resumed>) = 3 [pid 5307] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5313 attached [pid 5308] <... openat resumed>) = 3 [pid 5308] clone(child_stack=NULL, flags=0 [pid 5309] <... munmap resumed>) = 0 [pid 5307] <... clone resumed>) = 5313 [pid 5309] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5307] ptrace(PTRACE_ATTACH, 5313 [pid 5309] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5307] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5309] close(3 [pid 5307] exit_group(0./strace-static-x86_64: Process 5314 attached [pid 5312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5310] munmap(0x7f9e50600000, 138412032 [pid 5307] <... exit_group resumed>) = ? [pid 5310] <... munmap resumed>) = 0 [pid 5309] <... close resumed>) = 0 [pid 5308] <... clone resumed>) = 5314 [pid 5307] +++ exited with 0 +++ [pid 5309] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5308] ptrace(PTRACE_ATTACH, 5314 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5310] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5308] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5303] exit(0) = ? [pid 5309] <... openat resumed>) = 3 [pid 5309] clone(child_stack=NULL, flags=0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5310] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] exit_group(0 [pid 5303] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5308] <... exit_group resumed>) = ? [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5315 attached [pid 5304] exit(0./strace-static-x86_64: Process 5316 attached ) = ? [pid 5316] set_robust_list(0x555566297660, 24 [pid 5312] <... write resumed>) = 1048576 [pid 5310] close(3 [pid 5309] <... clone resumed>) = 5315 [pid 5308] +++ exited with 0 +++ [pid 5305] exit(0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5316 [pid 5305] <... exit resumed>) = ? [pid 5304] +++ exited with 0 +++ [pid 5309] ptrace(PTRACE_ATTACH, 5315 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5316] <... set_robust_list resumed>) = 0 [pid 5312] munmap(0x7f9e50600000, 138412032 [pid 5305] +++ exited with 0 +++ [pid 5088] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5309] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5312] <... munmap resumed>) = 0 [pid 5309] <... exit_group resumed>) = ? [pid 5316] <... prctl resumed>) = 0 [pid 5316] setpgid(0, 0./strace-static-x86_64: Process 5317 attached [pid 5317] set_robust_list(0x555566297660, 24) = 0 [pid 5316] <... setpgid resumed>) = 0 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5317 [pid 5317] <... prctl resumed>) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] setpgid(0, 0 [pid 5316] <... openat resumed>) = 3 [pid 5312] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5317] <... setpgid resumed>) = 0 [pid 5306] exit(0 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5306] <... exit resumed>) = ? [pid 5309] +++ exited with 0 +++ [pid 5317] <... openat resumed>) = 3 [pid 5316] write(3, "1000", 4 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5317] write(3, "1000", 4) = 4 [pid 5317] close(3) = 0 [pid 5306] +++ exited with 0 +++ [pid 5317] memfd_create("syzkaller", 0 [pid 5316] <... write resumed>) = 4 [pid 5312] close(3 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5317] <... memfd_create resumed>) = 3 [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5316] close(3 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5316] <... close resumed>) = 0 [pid 5312] <... close resumed>) = 0 [pid 5310] <... close resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5316] memfd_create("syzkaller", 0 [pid 5312] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5310] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5318 attached [pid 5316] <... memfd_create resumed>) = 3 [pid 5312] <... openat resumed>) = 3 [pid 5318] set_robust_list(0x555566297660, 24 [pid 5316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5312] clone(child_stack=NULL, flags=0 [pid 5310] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5319 attached [pid 5318] <... set_robust_list resumed>) = 0 [pid 5316] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5318 [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] <... write resumed>) = 1048576 [pid 5312] <... clone resumed>) = 5319 [pid 5310] clone(child_stack=NULL, flags=0 [pid 5318] <... prctl resumed>) = 0 [pid 5317] munmap(0x7f9e50600000, 138412032 [pid 5318] setpgid(0, 0 [pid 5312] ptrace(PTRACE_ATTACH, 5319 [pid 5318] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5320 attached [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5310] <... clone resumed>) = 5320 [pid 5318] <... openat resumed>) = 3 [pid 5317] <... munmap resumed>) = 0 [pid 5312] exit_group(0 [pid 5318] write(3, "1000", 4 [pid 5317] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5312] <... exit_group resumed>) = ? [pid 5310] ptrace(PTRACE_ATTACH, 5320 [pid 5318] <... write resumed>) = 4 [pid 5317] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5318] close(3) = 0 [pid 5317] close(3 [pid 5318] memfd_create("syzkaller", 0 [pid 5316] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5312] +++ exited with 0 +++ [pid 5310] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5318] <... memfd_create resumed>) = 3 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5317] <... close resumed>) = 0 [pid 5310] exit_group(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5318] <... mmap resumed>) = 0x7f9e50600000 [pid 5317] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5310] <... exit_group resumed>) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5310] +++ exited with 0 +++ [pid 5311] exit(0 [pid 5317] <... openat resumed>) = 3 [pid 5311] <... exit resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5311] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5317] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5321 attached [pid 5316] <... write resumed>) = 1048576 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5321 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5322 attached [pid 5321] set_robust_list(0x555566297660, 24 [pid 5318] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5316] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5323 attached [pid 5321] <... set_robust_list resumed>) = 0 [pid 5323] set_robust_list(0x555566297660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5323 [pid 5323] <... set_robust_list resumed>) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0 [pid 5316] <... munmap resumed>) = 0 [pid 5321] <... prctl resumed>) = 0 [pid 5323] <... setpgid resumed>) = 0 [pid 5317] <... clone resumed>) = 5322 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5321] setpgid(0, 0 [pid 5317] ptrace(PTRACE_ATTACH, 5322 [pid 5321] <... setpgid resumed>) = 0 [pid 5317] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5316] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5323] <... openat resumed>) = 3 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] exit_group(0 [pid 5316] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5321] <... openat resumed>) = 3 [pid 5317] <... exit_group resumed>) = ? [pid 5316] close(3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3) = 0 [pid 5323] memfd_create("syzkaller", 0 [pid 5321] write(3, "1000", 4 [pid 5317] +++ exited with 0 +++ [pid 5316] <... close resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5323] <... memfd_create resumed>) = 3 [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5323] <... mmap resumed>) = 0x7f9e50600000 [pid 5321] <... write resumed>) = 4 ./strace-static-x86_64: Process 5324 attached [pid 5324] set_robust_list(0x555566297660, 24) = 0 [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5321] close(3) = 0 [pid 5316] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5324 [pid 5324] <... prctl resumed>) = 0 [pid 5324] setpgid(0, 0 [pid 5321] memfd_create("syzkaller", 0 [pid 5324] <... setpgid resumed>) = 0 [pid 5316] <... openat resumed>) = 3 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5321] <... memfd_create resumed>) = 3 [pid 5324] <... openat resumed>) = 3 [pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5316] clone(child_stack=NULL, flags=0 [pid 5324] write(3, "1000", 4 [pid 5321] <... mmap resumed>) = 0x7f9e50600000 [pid 5318] <... write resumed>) = 1048576 [pid 5318] munmap(0x7f9e50600000, 138412032) = 0 [pid 5324] <... write resumed>) = 4 [pid 5324] close(3) = 0 [pid 5324] memfd_create("syzkaller", 0 [pid 5318] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5324] <... memfd_create resumed>) = 3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5318] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5324] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5325 attached [pid 5321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5316] <... clone resumed>) = 5325 [pid 5318] close(3) = 0 [pid 5316] ptrace(PTRACE_ATTACH, 5325) = -1 EPERM (Operation not permitted) [pid 5313] exit(0) = ? [pid 5316] exit_group(0) = ? [pid 5313] +++ exited with 0 +++ [pid 5324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5316] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5321] <... write resumed>) = 1048576 [pid 5318] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5321] munmap(0x7f9e50600000, 138412032 [pid 5314] exit(0) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5314] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5321] <... munmap resumed>) = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5326 [pid 5321] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5315] exit(0) = ? ./strace-static-x86_64: Process 5326 attached [pid 5321] close(3 [pid 5326] set_robust_list(0x555566297660, 24 [pid 5323] <... write resumed>) = 1048576 [pid 5318] <... openat resumed>) = 3 [pid 5315] +++ exited with 0 +++ [pid 5326] <... set_robust_list resumed>) = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5326] setpgid(0, 0 [pid 5318] clone(child_stack=NULL, flags=0 [pid 5326] <... setpgid resumed>) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5327 attached [pid 5326] write(3, "1000", 4 [pid 5324] <... write resumed>) = 1048576 [pid 5323] munmap(0x7f9e50600000, 138412032 [pid 5321] <... close resumed>) = 0 [pid 5326] <... write resumed>) = 4 [pid 5321] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5326] close(3 [pid 5324] munmap(0x7f9e50600000, 138412032 [pid 5323] <... munmap resumed>) = 0 [pid 5318] <... clone resumed>) = 5327 [pid 5326] <... close resumed>) = 0 [pid 5324] <... munmap resumed>) = 0 [pid 5323] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5318] ptrace(PTRACE_ATTACH, 5327 [pid 5326] memfd_create("syzkaller", 0) = 3 [pid 5323] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5321] <... openat resumed>) = 3 [pid 5318] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5324] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5323] close(3 [pid 5321] clone(child_stack=NULL, flags=0 [pid 5318] exit_group(0./strace-static-x86_64: Process 5328 attached [pid 5326] <... mmap resumed>) = 0x7f9e50600000 [pid 5324] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5318] <... exit_group resumed>) = ? [pid 5323] <... close resumed>) = 0 [pid 5324] close(3 [pid 5318] +++ exited with 0 +++ [pid 5323] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5321] <... clone resumed>) = 5328 [pid 5323] <... openat resumed>) = 3 [pid 5321] ptrace(PTRACE_ATTACH, 5328 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5321] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5319] exit(0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5323] clone(child_stack=NULL, flags=0 [pid 5321] exit_group(0 [pid 5319] <... exit resumed>) = ? [pid 5093] <... restart_syscall resumed>) = 0 [pid 5321] <... exit_group resumed>) = ? [pid 5320] exit(0) = ? [pid 5324] <... close resumed>) = 0 [pid 5321] +++ exited with 0 +++ [pid 5320] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5323] <... clone resumed>) = 5329 ./strace-static-x86_64: Process 5329 attached [pid 5326] <... write resumed>) = 1048576 [pid 5324] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5319] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5326] munmap(0x7f9e50600000, 138412032 [pid 5323] ptrace(PTRACE_ATTACH, 5329 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5326] <... munmap resumed>) = 0 [pid 5324] <... openat resumed>) = 3 [pid 5323] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5326] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5324] clone(child_stack=NULL, flags=0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5323] exit_group(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5330 attached [pid 5326] close(3./strace-static-x86_64: Process 5332 attached ./strace-static-x86_64: Process 5331 attached [pid 5330] set_robust_list(0x555566297660, 24 [pid 5323] <... exit_group resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5330 [pid 5331] set_robust_list(0x555566297660, 24 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5324] <... clone resumed>) = 5332 [pid 5323] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5324] ptrace(PTRACE_ATTACH, 5332 [pid 5331] <... set_robust_list resumed>) = 0 [pid 5330] <... prctl resumed>) = 0 [pid 5324] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5330] setpgid(0, 0 [pid 5324] exit_group(0 [pid 5322] exit(0 [pid 5331] <... prctl resumed>) = 0 [pid 5330] <... setpgid resumed>) = 0 [pid 5324] <... exit_group resumed>) = ? [pid 5322] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5330] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5331 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5330] write(3, "1000", 4 [pid 5322] +++ exited with 0 +++ [pid 5330] <... write resumed>) = 4 [pid 5324] +++ exited with 0 +++ ./strace-static-x86_64: Process 5333 attached [pid 5331] setpgid(0, 0 [pid 5330] close(3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5331] <... setpgid resumed>) = 0 [pid 5330] <... close resumed>) = 0 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5333] set_robust_list(0x555566297660, 24 [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5330] memfd_create("syzkaller", 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5333 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5333] <... set_robust_list resumed>) = 0 [pid 5330] <... memfd_create resumed>) = 3 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] <... openat resumed>) = 3 [pid 5330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] <... close resumed>) = 0 [pid 5333] <... prctl resumed>) = 0 [pid 5331] write(3, "1000", 4 [pid 5330] <... mmap resumed>) = 0x7f9e50600000 [pid 5326] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5333] setpgid(0, 0 [pid 5331] <... write resumed>) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5333] <... setpgid resumed>) = 0 [pid 5331] close(3 [pid 5330] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5326] <... openat resumed>) = 3 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] <... close resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5333] <... openat resumed>) = 3 [pid 5331] memfd_create("syzkaller", 0 [pid 5326] clone(child_stack=NULL, flags=0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5331] <... memfd_create resumed>) = 3 [pid 5333] write(3, "1000", 4./strace-static-x86_64: Process 5334 attached [pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5333] <... write resumed>) = 4 [pid 5331] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5334 [pid 5334] set_robust_list(0x555566297660, 24 [pid 5333] close(3 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5333] <... close resumed>) = 0 [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] memfd_create("syzkaller", 0 [pid 5325] exit(0./strace-static-x86_64: Process 5335 attached [pid 5333] <... memfd_create resumed>) = 3 [pid 5325] <... exit resumed>) = ? [pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] <... clone resumed>) = 5335 [pid 5333] <... mmap resumed>) = 0x7f9e50600000 [pid 5326] ptrace(PTRACE_ATTACH, 5335 [pid 5325] +++ exited with 0 +++ [pid 5326] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5326] exit_group(0) = ? [pid 5331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5326] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5334] <... prctl resumed>) = 0 [pid 5334] setpgid(0, 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5334] <... setpgid resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5336 attached ) = 3 [pid 5336] set_robust_list(0x555566297660, 24 [pid 5334] write(3, "1000", 4 [pid 5333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5336 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5334] <... write resumed>) = 4 [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] close(3 [pid 5336] <... prctl resumed>) = 0 [pid 5334] <... close resumed>) = 0 [pid 5336] setpgid(0, 0 [pid 5334] memfd_create("syzkaller", 0 [pid 5336] <... setpgid resumed>) = 0 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] <... memfd_create resumed>) = 3 [pid 5336] <... openat resumed>) = 3 [pid 5336] write(3, "1000", 4 [pid 5330] <... write resumed>) = 1048576 [pid 5336] <... write resumed>) = 4 [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5336] close(3) = 0 [pid 5336] memfd_create("syzkaller", 0 [pid 5334] <... mmap resumed>) = 0x7f9e50600000 [pid 5330] munmap(0x7f9e50600000, 138412032 [pid 5336] <... memfd_create resumed>) = 3 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5331] <... write resumed>) = 1048576 [pid 5330] <... munmap resumed>) = 0 [pid 5333] <... write resumed>) = 1048576 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5334] <... write resumed>) = 1048576 [pid 5331] munmap(0x7f9e50600000, 138412032 [pid 5330] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5334] munmap(0x7f9e50600000, 138412032 [pid 5333] munmap(0x7f9e50600000, 138412032 [pid 5331] <... munmap resumed>) = 0 [pid 5330] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5330] close(3 [pid 5334] <... munmap resumed>) = 0 [pid 5333] <... munmap resumed>) = 0 [pid 5330] <... close resumed>) = 0 [pid 5327] exit(0 [pid 5336] <... write resumed>) = 1048576 [pid 5333] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5331] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5334] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5336] munmap(0x7f9e50600000, 138412032 [pid 5334] close(3 [pid 5336] <... munmap resumed>) = 0 [pid 5333] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5331] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5336] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5333] close(3 [pid 5331] close(3 [pid 5330] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5327] <... exit resumed>) = ? [pid 5328] exit(0 [pid 5327] +++ exited with 0 +++ [pid 5328] <... exit resumed>) = ? [pid 5330] <... openat resumed>) = 3 [pid 5328] +++ exited with 0 +++ [pid 5336] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5336] close(3 [pid 5333] <... close resumed>) = 0 [pid 5330] clone(child_stack=NULL, flags=0 [pid 5334] <... close resumed>) = 0 [pid 5331] <... close resumed>) = 0 [pid 5334] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5337 attached [pid 5330] <... clone resumed>) = 5337 [pid 5330] ptrace(PTRACE_ATTACH, 5337 [pid 5336] <... close resumed>) = 0 [pid 5334] <... openat resumed>) = 3 [pid 5333] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5331] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5330] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5336] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5334] clone(child_stack=NULL, flags=0 [pid 5330] exit_group(0 [pid 5333] <... openat resumed>) = 3 [pid 5331] <... openat resumed>) = 3 [pid 5330] <... exit_group resumed>) = ? [pid 5336] <... openat resumed>) = 3 [pid 5331] clone(child_stack=NULL, flags=0 [pid 5336] clone(child_stack=NULL, flags=0 [pid 5333] clone(child_stack=NULL, flags=0 [pid 5330] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5338 attached [pid 5329] exit(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5336] <... clone resumed>) = 5338 ./strace-static-x86_64: Process 5341 attached ./strace-static-x86_64: Process 5340 attached ./strace-static-x86_64: Process 5339 attached [pid 5329] <... exit resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5336] ptrace(PTRACE_ATTACH, 5338 [pid 5334] <... clone resumed>) = 5340 [pid 5329] +++ exited with 0 +++ [pid 5333] <... clone resumed>) = 5341 [pid 5331] <... clone resumed>) = 5339 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5334] ptrace(PTRACE_ATTACH, 5340) = -1 EPERM (Operation not permitted) [pid 5336] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5334] exit_group(0 [pid 5331] ptrace(PTRACE_ATTACH, 5339) = -1 EPERM (Operation not permitted) [pid 5333] ptrace(PTRACE_ATTACH, 5341 [pid 5332] exit(0 [pid 5333] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5332] <... exit resumed>) = ? [pid 5331] exit_group(0./strace-static-x86_64: Process 5342 attached [pid 5336] exit_group(0 [pid 5334] <... exit_group resumed>) = ? [pid 5333] exit_group(0 [pid 5331] <... exit_group resumed>) = ? [pid 5342] set_robust_list(0x555566297660, 24 [pid 5336] <... exit_group resumed>) = ? [pid 5334] +++ exited with 0 +++ [pid 5333] <... exit_group resumed>) = ? [pid 5332] +++ exited with 0 +++ [pid 5331] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5342 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5336] +++ exited with 0 +++ [pid 5333] +++ exited with 0 +++ [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5342] <... prctl resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5342] setpgid(0, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5342] <... setpgid resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5343 attached [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5344 attached [pid 5343] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5343 [pid 5343] <... set_robust_list resumed>) = 0 [pid 5344] set_robust_list(0x555566297660, 24 [pid 5342] write(3, "1000", 4 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5344 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] <... write resumed>) = 4 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5343] <... prctl resumed>) = 0 [pid 5342] close(3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] setpgid(0, 0 [pid 5342] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5343] <... setpgid resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5343] <... openat resumed>) = 3 [pid 5344] <... prctl resumed>) = 0 [pid 5343] write(3, "1000", 4 [pid 5342] memfd_create("syzkaller", 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5345 attached [pid 5344] setpgid(0, 0 [pid 5343] <... write resumed>) = 4 [pid 5342] <... memfd_create resumed>) = 3 [pid 5344] <... setpgid resumed>) = 0 [pid 5343] close(3 [pid 5345] set_robust_list(0x555566297660, 24 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] <... close resumed>) = 0 [pid 5342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5345 ./strace-static-x86_64: Process 5346 attached [pid 5345] <... set_robust_list resumed>) = 0 [pid 5343] memfd_create("syzkaller", 0 [pid 5342] <... mmap resumed>) = 0x7f9e50600000 [pid 5344] <... openat resumed>) = 3 [pid 5346] set_robust_list(0x555566297660, 24 [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] <... memfd_create resumed>) = 3 [pid 5346] <... set_robust_list resumed>) = 0 [pid 5345] <... prctl resumed>) = 0 [pid 5344] write(3, "1000", 4 [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5346 [pid 5344] <... write resumed>) = 4 [pid 5343] <... mmap resumed>) = 0x7f9e50600000 [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5345] setpgid(0, 0 [pid 5344] close(3 [pid 5342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5346] <... prctl resumed>) = 0 [pid 5345] <... setpgid resumed>) = 0 [pid 5335] exit(0) = ? [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5344] <... close resumed>) = 0 [pid 5344] memfd_create("syzkaller", 0) = 3 [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5335] +++ exited with 0 +++ [pid 5346] setpgid(0, 0) = 0 [pid 5344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5345] <... openat resumed>) = 3 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5345] write(3, "1000", 4) = 4 [pid 5345] close(3) = 0 [pid 5346] <... openat resumed>) = 3 [pid 5345] memfd_create("syzkaller", 0 [pid 5343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5346] write(3, "1000", 4 [pid 5345] <... memfd_create resumed>) = 3 [pid 5346] <... write resumed>) = 4 [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5346] close(3) = 0 [pid 5346] memfd_create("syzkaller", 0 [pid 5345] <... mmap resumed>) = 0x7f9e50600000 [pid 5342] <... write resumed>) = 1048576 [pid 5346] <... memfd_create resumed>) = 3 [pid 5344] <... write resumed>) = 1048576 [pid 5346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5342] munmap(0x7f9e50600000, 138412032 [pid 5346] <... mmap resumed>) = 0x7f9e50600000 [pid 5342] <... munmap resumed>) = 0 [pid 5343] <... write resumed>) = 1048576 [pid 5343] munmap(0x7f9e50600000, 138412032) = 0 [pid 5346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5344] munmap(0x7f9e50600000, 138412032 [pid 5343] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5342] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5345] <... write resumed>) = 1048576 [pid 5344] <... munmap resumed>) = 0 [pid 5343] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5342] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5342] close(3 [pid 5343] close(3 [pid 5346] <... write resumed>) = 1048576 [pid 5344] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5343] <... close resumed>) = 0 [pid 5342] <... close resumed>) = 0 [pid 5342] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5346] munmap(0x7f9e50600000, 138412032 [pid 5345] munmap(0x7f9e50600000, 138412032 [pid 5344] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5343] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5342] <... openat resumed>) = 3 [pid 5342] clone(child_stack=NULL, flags=0 [pid 5344] close(3 [pid 5343] <... openat resumed>) = 3 [pid 5346] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5347 attached [pid 5346] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5345] <... munmap resumed>) = 0 [pid 5343] clone(child_stack=NULL, flags=0 [pid 5337] exit(0 [pid 5342] <... clone resumed>) = 5347 [pid 5337] <... exit resumed>) = ? [pid 5346] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5342] ptrace(PTRACE_ATTACH, 5347 [pid 5337] +++ exited with 0 +++ ./strace-static-x86_64: Process 5348 attached [pid 5346] close(3 [pid 5345] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5343] <... clone resumed>) = 5348 [pid 5342] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5345] close(3 [pid 5344] <... close resumed>) = 0 [pid 5343] ptrace(PTRACE_ATTACH, 5348 [pid 5342] exit_group(0) = ? [pid 5342] +++ exited with 0 +++ [pid 5338] exit(0 [pid 5344] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5343] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5338] <... exit resumed>) = ? [pid 5344] <... openat resumed>) = 3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5343] exit_group(0 [pid 5344] clone(child_stack=NULL, flags=0 [pid 5343] <... exit_group resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5349 attached [pid 5346] <... close resumed>) = 0 [pid 5345] <... close resumed>) = 0 [pid 5343] +++ exited with 0 +++ [pid 5338] +++ exited with 0 +++ [pid 5346] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5345] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5344] <... clone resumed>) = 5349 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5346] <... openat resumed>) = 3 [pid 5345] <... openat resumed>) = 3 [pid 5341] exit(0 [pid 5340] exit(0 [pid 5339] exit(0 [pid 5344] ptrace(PTRACE_ATTACH, 5349 [pid 5340] <... exit resumed>) = ? [pid 5339] <... exit resumed>) = ? [pid 5345] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5350 attached [pid 5346] clone(child_stack=NULL, flags=0 [pid 5344] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5341] <... exit resumed>) = ? [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5351 attached [pid 5340] +++ exited with 0 +++ [pid 5339] +++ exited with 0 +++ [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5350] set_robust_list(0x555566297660, 24 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5352 attached [pid 5344] exit_group(0 [pid 5341] +++ exited with 0 +++ [pid 5352] set_robust_list(0x555566297660, 24 [pid 5344] <... exit_group resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5350 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5352 [pid 5352] <... set_robust_list resumed>) = 0 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5350] <... set_robust_list resumed>) = 0 [pid 5352] <... prctl resumed>) = 0 [pid 5352] setpgid(0, 0) = 0 [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5345] <... clone resumed>) = 5351 ./strace-static-x86_64: Process 5353 attached [pid 5352] write(3, "1000", 4 [pid 5350] <... prctl resumed>) = 0 [pid 5346] <... clone resumed>) = 5353 [pid 5345] ptrace(PTRACE_ATTACH, 5351 [pid 5352] <... write resumed>) = 4 [pid 5350] setpgid(0, 0 [pid 5346] ptrace(PTRACE_ATTACH, 5353 [pid 5345] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5344] +++ exited with 0 +++ [pid 5352] close(3 [pid 5350] <... setpgid resumed>) = 0 [pid 5346] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5345] exit_group(0 [pid 5352] <... close resumed>) = 0 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5346] exit_group(0 [pid 5345] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5346] <... exit_group resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5352] memfd_create("syzkaller", 0 [pid 5350] <... openat resumed>) = 3 [pid 5346] +++ exited with 0 +++ [pid 5345] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5352] <... memfd_create resumed>) = 3 [pid 5350] write(3, "1000", 4 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5346, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5350] <... write resumed>) = 4 ./strace-static-x86_64: Process 5354 attached [pid 5352] <... mmap resumed>) = 0x7f9e50600000 [pid 5350] close(3 [pid 5354] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5354 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5354] <... set_robust_list resumed>) = 0 [pid 5350] <... close resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5355 attached [pid 5350] memfd_create("syzkaller", 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5354] <... prctl resumed>) = 0 [pid 5354] setpgid(0, 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5355 [pid 5354] <... setpgid resumed>) = 0 [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] set_robust_list(0x555566297660, 24 [pid 5350] <... memfd_create resumed>) = 3 [pid 5350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5354] <... openat resumed>) = 3 [pid 5350] <... mmap resumed>) = 0x7f9e50600000 [pid 5354] write(3, "1000", 4) = 4 [pid 5354] close(3./strace-static-x86_64: Process 5356 attached [pid 5355] <... set_robust_list resumed>) = 0 [pid 5352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5356] set_robust_list(0x555566297660, 24 [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5354] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5356 [pid 5354] memfd_create("syzkaller", 0 [pid 5356] <... set_robust_list resumed>) = 0 [pid 5355] <... prctl resumed>) = 0 [pid 5354] <... memfd_create resumed>) = 3 [pid 5352] <... write resumed>) = 1048576 [pid 5350] <... write resumed>) = 1048576 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5355] setpgid(0, 0 [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] munmap(0x7f9e50600000, 138412032 [pid 5350] munmap(0x7f9e50600000, 138412032 [pid 5356] <... prctl resumed>) = 0 [pid 5355] <... setpgid resumed>) = 0 [pid 5354] <... mmap resumed>) = 0x7f9e50600000 [pid 5352] <... munmap resumed>) = 0 [pid 5356] setpgid(0, 0 [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5350] <... munmap resumed>) = 0 [pid 5356] <... setpgid resumed>) = 0 [pid 5355] <... openat resumed>) = 3 [pid 5350] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] write(3, "1000", 4 [pid 5350] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5356] <... openat resumed>) = 3 [pid 5355] <... write resumed>) = 4 [pid 5352] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5350] close(3 [pid 5355] close(3 [pid 5352] close(3 [pid 5356] write(3, "1000", 4 [pid 5355] <... close resumed>) = 0 [pid 5352] <... close resumed>) = 0 [pid 5350] <... close resumed>) = 0 [pid 5356] <... write resumed>) = 4 [pid 5355] memfd_create("syzkaller", 0 [pid 5356] close(3) = 0 [pid 5355] <... memfd_create resumed>) = 3 [pid 5356] memfd_create("syzkaller", 0 [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5352] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5356] <... memfd_create resumed>) = 3 [pid 5355] <... mmap resumed>) = 0x7f9e50600000 [pid 5354] <... write resumed>) = 1048576 [pid 5350] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] <... openat resumed>) = 3 [pid 5356] <... mmap resumed>) = 0x7f9e50600000 [pid 5352] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5357 attached [pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5354] munmap(0x7f9e50600000, 138412032 [pid 5350] <... openat resumed>) = 3 [pid 5350] clone(child_stack=NULL, flags=0 [pid 5354] <... munmap resumed>) = 0 [pid 5352] <... clone resumed>) = 5357 [pid 5352] ptrace(PTRACE_ATTACH, 5357) = -1 EPERM (Operation not permitted) [pid 5352] exit_group(0) = ? [pid 5350] <... clone resumed>) = 5358 ./strace-static-x86_64: Process 5358 attached [pid 5354] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5352] +++ exited with 0 +++ [pid 5350] ptrace(PTRACE_ATTACH, 5358 [pid 5354] close(3 [pid 5350] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5350] exit_group(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5350] <... exit_group resumed>) = ? [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5350] +++ exited with 0 +++ ./strace-static-x86_64: Process 5359 attached [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5359] set_robust_list(0x555566297660, 24 [pid 5355] <... write resumed>) = 1048576 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5359 [pid 5359] <... prctl resumed>) = 0 [pid 5355] munmap(0x7f9e50600000, 138412032 [pid 5354] <... close resumed>) = 0 [pid 5359] setpgid(0, 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5359] <... setpgid resumed>) = 0 [pid 5355] <... munmap resumed>) = 0 [pid 5354] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5354] <... openat resumed>) = 3 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5359] write(3, "1000", 4) = 4 [pid 5359] close(3) = 0 [pid 5359] memfd_create("syzkaller", 0 [pid 5355] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5359] <... memfd_create resumed>) = 3 [pid 5359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5355] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5354] clone(child_stack=NULL, flags=0 [pid 5359] <... mmap resumed>) = 0x7f9e50600000 [pid 5355] close(3./strace-static-x86_64: Process 5360 attached [pid 5360] set_robust_list(0x555566297660, 24) = 0 [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5360] setpgid(0, 0) = 0 [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5360 ./strace-static-x86_64: Process 5361 attached [pid 5360] <... openat resumed>) = 3 [pid 5359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5356] <... write resumed>) = 1048576 [pid 5354] <... clone resumed>) = 5361 [pid 5348] exit(0 [pid 5347] exit(0 [pid 5360] write(3, "1000", 4) = 4 [pid 5348] <... exit resumed>) = ? [pid 5347] <... exit resumed>) = ? [pid 5360] close(3) = 0 [pid 5360] memfd_create("syzkaller", 0) = 3 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5347] +++ exited with 0 +++ [pid 5356] munmap(0x7f9e50600000, 138412032 [pid 5355] <... close resumed>) = 0 [pid 5354] ptrace(PTRACE_ATTACH, 5361 [pid 5348] +++ exited with 0 +++ [pid 5354] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5354] exit_group(0) = ? [pid 5356] <... munmap resumed>) = 0 [pid 5355] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5354] +++ exited with 0 +++ [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5359] <... write resumed>) = 1048576 [pid 5356] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5355] <... openat resumed>) = 3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5354, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5359] munmap(0x7f9e50600000, 138412032 [pid 5356] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5355] clone(child_stack=NULL, flags=0 [pid 5349] exit(0./strace-static-x86_64: Process 5362 attached [pid 5359] <... munmap resumed>) = 0 [pid 5356] close(3 [pid 5351] exit(0 [pid 5349] <... exit resumed>) = ? [pid 5360] <... write resumed>) = 1048576 [pid 5359] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5356] <... close resumed>) = 0 [pid 5355] <... clone resumed>) = 5362 [pid 5351] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5360] munmap(0x7f9e50600000, 138412032 [pid 5359] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5356] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5355] ptrace(PTRACE_ATTACH, 5362 [pid 5353] exit(0 [pid 5351] +++ exited with 0 +++ [pid 5349] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5355] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5353] <... exit resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5363 attached [pid 5360] <... munmap resumed>) = 0 [pid 5359] close(3 [pid 5356] <... openat resumed>) = 3 [pid 5355] exit_group(0 [pid 5360] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5355] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5363 [pid 5363] set_robust_list(0x555566297660, 24 [pid 5360] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5356] clone(child_stack=NULL, flags=0 [pid 5355] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ [pid 5363] <... set_robust_list resumed>) = 0 [pid 5360] close(3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5363] <... prctl resumed>) = 0 [pid 5363] setpgid(0, 0) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5359] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5356] <... clone resumed>) = 5364 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5364 attached [pid 5363] <... openat resumed>) = 3 [pid 5356] ptrace(PTRACE_ATTACH, 5364 [pid 5360] <... close resumed>) = 0 ./strace-static-x86_64: Process 5365 attached [pid 5359] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5365] set_robust_list(0x555566297660, 24 [pid 5363] write(3, "1000", 4 [pid 5360] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5356] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5365 [pid 5365] <... set_robust_list resumed>) = 0 [pid 5363] <... write resumed>) = 4 [pid 5359] <... openat resumed>) = 3 [pid 5356] exit_group(0 [pid 5363] close(3 [pid 5360] <... openat resumed>) = 3 [pid 5359] clone(child_stack=NULL, flags=0 [pid 5356] <... exit_group resumed>) = ? [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5363] <... close resumed>) = 0 [pid 5360] clone(child_stack=NULL, flags=0 [pid 5365] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5366 attached [pid 5363] memfd_create("syzkaller", 0 [pid 5365] setpgid(0, 0 [pid 5359] <... clone resumed>) = 5366 [pid 5365] <... setpgid resumed>) = 0 [pid 5359] ptrace(PTRACE_ATTACH, 5366) = -1 EPERM (Operation not permitted) [pid 5359] exit_group(0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5359] <... exit_group resumed>) = ? [pid 5363] <... memfd_create resumed>) = 3 [pid 5356] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5367 attached [pid 5365] <... openat resumed>) = 3 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5359] +++ exited with 0 +++ [pid 5365] write(3, "1000", 4 [pid 5363] <... mmap resumed>) = 0x7f9e50600000 [pid 5360] <... clone resumed>) = 5367 [pid 5365] <... write resumed>) = 4 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5360] ptrace(PTRACE_ATTACH, 5367 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5365] close(3 [pid 5360] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5365] <... close resumed>) = 0 [pid 5360] exit_group(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5365] memfd_create("syzkaller", 0 [pid 5360] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5368 attached [pid 5365] <... memfd_create resumed>) = 3 [pid 5368] set_robust_list(0x555566297660, 24 [pid 5365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5369 attached [pid 5368] <... set_robust_list resumed>) = 0 [pid 5365] <... mmap resumed>) = 0x7f9e50600000 [pid 5360] +++ exited with 0 +++ [pid 5369] set_robust_list(0x555566297660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5369 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5360, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5368 [pid 5369] <... set_robust_list resumed>) = 0 [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5363] <... write resumed>) = 1048576 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5368] <... prctl resumed>) = 0 [pid 5369] <... prctl resumed>) = 0 [pid 5369] setpgid(0, 0 [pid 5368] setpgid(0, 0 [pid 5369] <... setpgid resumed>) = 0 [pid 5368] <... setpgid resumed>) = 0 [pid 5363] munmap(0x7f9e50600000, 138412032 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5363] <... munmap resumed>) = 0 [pid 5369] <... openat resumed>) = 3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5370 ./strace-static-x86_64: Process 5370 attached [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] set_robust_list(0x555566297660, 24 [pid 5369] write(3, "1000", 4 [pid 5370] <... set_robust_list resumed>) = 0 [pid 5369] <... write resumed>) = 4 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5369] close(3 [pid 5368] <... openat resumed>) = 3 [pid 5370] <... prctl resumed>) = 0 [pid 5369] <... close resumed>) = 0 [pid 5368] write(3, "1000", 4 [pid 5363] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5370] setpgid(0, 0 [pid 5369] memfd_create("syzkaller", 0 [pid 5365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5363] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5368] <... write resumed>) = 4 [pid 5370] <... setpgid resumed>) = 0 [pid 5369] <... memfd_create resumed>) = 3 [pid 5368] close(3 [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5368] <... close resumed>) = 0 [pid 5363] close(3 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5369] <... mmap resumed>) = 0x7f9e50600000 [pid 5368] memfd_create("syzkaller", 0 [pid 5363] <... close resumed>) = 0 [pid 5370] <... openat resumed>) = 3 [pid 5365] <... write resumed>) = 1048576 [pid 5370] write(3, "1000", 4 [pid 5365] munmap(0x7f9e50600000, 138412032 [pid 5358] exit(0 [pid 5357] exit(0 [pid 5370] <... write resumed>) = 4 [pid 5368] <... memfd_create resumed>) = 3 [pid 5358] <... exit resumed>) = ? [pid 5357] <... exit resumed>) = ? [pid 5370] close(3 [pid 5368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5365] <... munmap resumed>) = 0 [pid 5358] +++ exited with 0 +++ [pid 5357] +++ exited with 0 +++ [pid 5370] <... close resumed>) = 0 [pid 5368] <... mmap resumed>) = 0x7f9e50600000 [pid 5370] memfd_create("syzkaller", 0) = 3 [pid 5365] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5365] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5370] <... mmap resumed>) = 0x7f9e50600000 [pid 5365] close(3 [pid 5363] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5363] <... openat resumed>) = 3 [pid 5370] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5369] <... write resumed>) = 1048576 [pid 5365] <... close resumed>) = 0 [pid 5363] clone(child_stack=NULL, flags=0 [pid 5369] munmap(0x7f9e50600000, 138412032 [pid 5365] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5361] exit(0) = ? ./strace-static-x86_64: Process 5371 attached [pid 5369] <... munmap resumed>) = 0 [pid 5369] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5361] +++ exited with 0 +++ [pid 5369] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5369] close(3 [pid 5363] <... clone resumed>) = 5371 [pid 5365] <... openat resumed>) = 3 [pid 5365] clone(child_stack=NULL, flags=0 [pid 5363] ptrace(PTRACE_ATTACH, 5371) = -1 EPERM (Operation not permitted) [pid 5363] exit_group(0) = ? ./strace-static-x86_64: Process 5372 attached [pid 5368] <... write resumed>) = 1048576 [pid 5363] +++ exited with 0 +++ [pid 5368] munmap(0x7f9e50600000, 138412032 [pid 5365] <... clone resumed>) = 5372 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5365] ptrace(PTRACE_ATTACH, 5372 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5368] <... munmap resumed>) = 0 [pid 5365] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5369] <... close resumed>) = 0 [pid 5368] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5365] exit_group(0./strace-static-x86_64: Process 5373 attached [pid 5369] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5368] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5365] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5373 [pid 5373] set_robust_list(0x555566297660, 24 [pid 5370] <... write resumed>) = 1048576 [pid 5369] <... openat resumed>) = 3 [pid 5368] close(3 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5370] munmap(0x7f9e50600000, 138412032 [pid 5369] clone(child_stack=NULL, flags=0 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5370] <... munmap resumed>) = 0 [pid 5373] <... prctl resumed>) = 0 [pid 5373] setpgid(0, 0./strace-static-x86_64: Process 5374 attached ) = 0 [pid 5370] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5369] <... clone resumed>) = 5374 [pid 5368] <... close resumed>) = 0 [pid 5365] +++ exited with 0 +++ [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5368] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5362] exit(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5370] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5369] ptrace(PTRACE_ATTACH, 5374 [pid 5370] close(3 [pid 5369] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5362] <... exit resumed>) = ? [pid 5373] <... openat resumed>) = 3 [pid 5369] exit_group(0 [pid 5368] <... openat resumed>) = 3 [pid 5362] +++ exited with 0 +++ [pid 5369] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5373] write(3, "1000", 4) = 4 [pid 5368] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5375 attached [pid 5373] close(3 [pid 5369] +++ exited with 0 +++ [pid 5370] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5373] <... close resumed>) = 0 [pid 5364] exit(0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5364] <... exit resumed>) = ? [pid 5373] memfd_create("syzkaller", 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5373] <... memfd_create resumed>) = 3 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5376 attached ) = 0x7f9e50600000 [pid 5376] set_robust_list(0x555566297660, 24 [pid 5370] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5368] <... clone resumed>) = 5375 [pid 5364] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5376 [pid 5376] <... set_robust_list resumed>) = 0 [pid 5370] <... openat resumed>) = 3 [pid 5366] exit(0 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5368] ptrace(PTRACE_ATTACH, 5375 [pid 5366] <... exit resumed>) = ? [pid 5376] <... prctl resumed>) = 0 [pid 5370] clone(child_stack=NULL, flags=0 [pid 5368] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5366] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5376] setpgid(0, 0 [pid 5368] exit_group(0 [pid 5367] exit(0./strace-static-x86_64: Process 5377 attached [pid 5376] <... setpgid resumed>) = 0 [pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5368] <... exit_group resumed>) = ? [pid 5367] <... exit resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5370] <... clone resumed>) = 5377 [pid 5370] ptrace(PTRACE_ATTACH, 5377 [pid 5368] +++ exited with 0 +++ [pid 5367] +++ exited with 0 +++ [pid 5370] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5370] exit_group(0) = ? [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... restart_syscall resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5376] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5378 attached [pid 5376] write(3, "1000", 4 [pid 5373] <... write resumed>) = 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] <... write resumed>) = 4 [pid 5373] munmap(0x7f9e50600000, 138412032 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5378 [pid 5376] close(3./strace-static-x86_64: Process 5379 attached [pid 5378] set_robust_list(0x555566297660, 24 [pid 5376] <... close resumed>) = 0 [pid 5373] <... munmap resumed>) = 0 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5376] memfd_create("syzkaller", 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5378] setpgid(0, 0) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5379 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] set_robust_list(0x555566297660, 24 [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] <... memfd_create resumed>) = 3 [pid 5373] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5379] <... set_robust_list resumed>) = 0 [pid 5378] <... openat resumed>) = 3 [pid 5376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5373] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5378] write(3, "1000", 4) = 4 [pid 5378] close(3) = 0 [pid 5376] <... mmap resumed>) = 0x7f9e50600000 [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] memfd_create("syzkaller", 0) = 3 [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5380 attached [pid 5379] <... prctl resumed>) = 0 [pid 5378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5373] close(3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5380 [pid 5380] set_robust_list(0x555566297660, 24 [pid 5379] setpgid(0, 0 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5379] <... setpgid resumed>) = 0 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] write(3, "1000", 4 [pid 5380] <... prctl resumed>) = 0 [pid 5379] <... write resumed>) = 4 [pid 5380] setpgid(0, 0 [pid 5379] close(3 [pid 5380] <... setpgid resumed>) = 0 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5379] <... close resumed>) = 0 [pid 5376] <... write resumed>) = 1048576 [pid 5373] <... close resumed>) = 0 [pid 5380] <... openat resumed>) = 3 [pid 5379] memfd_create("syzkaller", 0 [pid 5378] <... write resumed>) = 1048576 [pid 5376] munmap(0x7f9e50600000, 138412032 [pid 5373] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5380] write(3, "1000", 4 [pid 5379] <... memfd_create resumed>) = 3 [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5378] munmap(0x7f9e50600000, 138412032 [pid 5379] <... mmap resumed>) = 0x7f9e50600000 [pid 5380] <... write resumed>) = 4 [pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5378] <... munmap resumed>) = 0 [pid 5376] <... munmap resumed>) = 0 [pid 5373] <... openat resumed>) = 3 [pid 5380] close(3 [pid 5378] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5376] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5380] <... close resumed>) = 0 [pid 5378] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5376] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5373] clone(child_stack=NULL, flags=0 [pid 5380] memfd_create("syzkaller", 0) = 3 [pid 5378] close(3 [pid 5376] close(3 [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5371] exit(0./strace-static-x86_64: Process 5381 attached [pid 5380] <... mmap resumed>) = 0x7f9e50600000 [pid 5371] <... exit resumed>) = ? [pid 5373] <... clone resumed>) = 5381 [pid 5371] +++ exited with 0 +++ [pid 5373] ptrace(PTRACE_ATTACH, 5381) = -1 EPERM (Operation not permitted) [pid 5379] <... write resumed>) = 1048576 [pid 5373] exit_group(0 [pid 5380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5379] munmap(0x7f9e50600000, 138412032 [pid 5376] <... close resumed>) = 0 [pid 5373] <... exit_group resumed>) = ? [pid 5372] exit(0) = ? [pid 5372] +++ exited with 0 +++ [pid 5376] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5380] <... write resumed>) = 1048576 [pid 5379] <... munmap resumed>) = 0 [pid 5378] <... close resumed>) = 0 [pid 5373] +++ exited with 0 +++ [pid 5380] munmap(0x7f9e50600000, 138412032 [pid 5379] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5378] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5376] <... openat resumed>) = 3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5380] <... munmap resumed>) = 0 [pid 5378] <... openat resumed>) = 3 [pid 5376] clone(child_stack=NULL, flags=0 [pid 5380] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5379] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5380] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] close(3 [pid 5378] clone(child_stack=NULL, flags=0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5382 attached ) = -1 EBUSY (Device or resource busy) [pid 5380] close(3 [pid 5376] <... clone resumed>) = 5382 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] ptrace(PTRACE_ATTACH, 5382./strace-static-x86_64: Process 5383 attached ) = -1 EPERM (Operation not permitted) [pid 5383] set_robust_list(0x555566297660, 24 [pid 5376] exit_group(0 [pid 5383] <... set_robust_list resumed>) = 0 [pid 5376] <... exit_group resumed>) = ? [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5383 [pid 5383] <... prctl resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5383] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5384 attached [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5383] write(3, "1000", 4 [pid 5378] <... clone resumed>) = 5384 [pid 5380] <... close resumed>) = 0 [pid 5379] <... close resumed>) = 0 [pid 5378] ptrace(PTRACE_ATTACH, 5384 [pid 5379] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5383] <... write resumed>) = 4 [pid 5374] exit(0 [pid 5383] close(3 [pid 5374] <... exit resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5383] <... close resumed>) = 0 [pid 5380] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5379] <... openat resumed>) = 3 [pid 5378] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5374] +++ exited with 0 +++ [pid 5383] memfd_create("syzkaller", 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5383] <... memfd_create resumed>) = 3 [pid 5379] clone(child_stack=NULL, flags=0 [pid 5378] exit_group(0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5380] <... openat resumed>) = 3 [pid 5383] <... mmap resumed>) = 0x7f9e50600000 [pid 5380] clone(child_stack=NULL, flags=0 [pid 5378] <... exit_group resumed>) = ? [pid 5375] exit(0) = ? ./strace-static-x86_64: Process 5385 attached [pid 5375] +++ exited with 0 +++ [pid 5379] <... clone resumed>) = 5385 ./strace-static-x86_64: Process 5387 attached [pid 5387] set_robust_list(0x555566297660, 24 [pid 5378] +++ exited with 0 +++ [pid 5379] ptrace(PTRACE_ATTACH, 5385 [pid 5387] <... set_robust_list resumed>) = 0 [pid 5379] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5386 attached [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] exit_group(0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5387 [pid 5387] <... prctl resumed>) = 0 [pid 5380] <... clone resumed>) = 5386 [pid 5379] <... exit_group resumed>) = ? [pid 5387] setpgid(0, 0 [pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5380] ptrace(PTRACE_ATTACH, 5386 [pid 5379] +++ exited with 0 +++ [pid 5377] exit(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5387] <... setpgid resumed>) = 0 [pid 5380] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] exit_group(0 [pid 5377] <... exit resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5377] +++ exited with 0 +++ ./strace-static-x86_64: Process 5388 attached [pid 5380] <... exit_group resumed>) = ? [pid 5388] set_robust_list(0x555566297660, 24) = 0 [pid 5380] +++ exited with 0 +++ [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5388] setpgid(0, 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5388] <... setpgid resumed>) = 0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5387] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5388 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5388] <... openat resumed>) = 3 [pid 5387] write(3, "1000", 4./strace-static-x86_64: Process 5389 attached [pid 5389] set_robust_list(0x555566297660, 24 [pid 5388] write(3, "1000", 4 [pid 5389] <... set_robust_list resumed>) = 0 [pid 5387] <... write resumed>) = 4 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5388] <... write resumed>) = 4 [pid 5388] close(3) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] memfd_create("syzkaller", 0 [pid 5387] close(3 [pid 5388] <... memfd_create resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5389 [pid 5387] <... close resumed>) = 0 [pid 5389] <... prctl resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5389] setpgid(0, 0 [pid 5388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5389] <... setpgid resumed>) = 0 [pid 5388] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5390 attached [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5387] memfd_create("syzkaller", 0 [pid 5383] <... write resumed>) = 1048576 [pid 5390] set_robust_list(0x555566297660, 24 [pid 5389] <... openat resumed>) = 3 [pid 5387] <... memfd_create resumed>) = 3 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5389] write(3, "1000", 4 [pid 5388] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] munmap(0x7f9e50600000, 138412032 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5390 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5389] <... write resumed>) = 4 [pid 5387] <... mmap resumed>) = 0x7f9e50600000 [pid 5390] <... prctl resumed>) = 0 [pid 5389] close(3 [pid 5390] setpgid(0, 0 [pid 5389] <... close resumed>) = 0 [pid 5390] <... setpgid resumed>) = 0 [pid 5389] memfd_create("syzkaller", 0 [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5389] <... memfd_create resumed>) = 3 [pid 5383] <... munmap resumed>) = 0 [pid 5390] <... openat resumed>) = 3 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5383] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5389] <... mmap resumed>) = 0x7f9e50600000 [pid 5383] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5390] write(3, "1000", 4 [pid 5383] close(3 [pid 5390] <... write resumed>) = 4 [pid 5383] <... close resumed>) = 0 [pid 5383] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5390] close(3 [pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5388] <... write resumed>) = 1048576 [pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5390] <... close resumed>) = 0 [pid 5388] munmap(0x7f9e50600000, 138412032 [pid 5383] <... openat resumed>) = 3 [pid 5390] memfd_create("syzkaller", 0 [pid 5389] <... write resumed>) = 1048576 [pid 5388] <... munmap resumed>) = 0 [pid 5383] clone(child_stack=NULL, flags=0 [pid 5390] <... memfd_create resumed>) = 3 [pid 5390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5391 attached [pid 5388] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5387] <... write resumed>) = 1048576 [pid 5388] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5388] close(3 [pid 5381] exit(0) = ? [pid 5383] <... clone resumed>) = 5391 [pid 5389] munmap(0x7f9e50600000, 138412032 [pid 5390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5388] <... close resumed>) = 0 [pid 5387] munmap(0x7f9e50600000, 138412032 [pid 5383] ptrace(PTRACE_ATTACH, 5391 [pid 5381] +++ exited with 0 +++ [pid 5383] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5389] <... munmap resumed>) = 0 [pid 5388] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5387] <... munmap resumed>) = 0 [pid 5383] exit_group(0 [pid 5388] <... openat resumed>) = 3 [pid 5387] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5383] <... exit_group resumed>) = ? [pid 5388] clone(child_stack=NULL, flags=0 [pid 5389] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5387] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5389] close(3 [pid 5387] close(3 [pid 5383] +++ exited with 0 +++ [pid 5388] <... clone resumed>) = 5392 [pid 5388] ptrace(PTRACE_ATTACH, 5392) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5392 attached [pid 5382] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5388] exit_group(0 [pid 5382] <... exit resumed>) = ? [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5388] <... exit_group resumed>) = ? [pid 5382] +++ exited with 0 +++ [pid 5384] exit(0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5384] <... exit resumed>) = ? [pid 5388] +++ exited with 0 +++ [pid 5384] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5387] <... close resumed>) = 0 [pid 5387] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5390] <... write resumed>) = 1048576 [pid 5389] <... close resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5390] munmap(0x7f9e50600000, 138412032 [pid 5387] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5390] <... munmap resumed>) = 0 [pid 5389] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5387] clone(child_stack=NULL, flags=0 [pid 5385] exit(0./strace-static-x86_64: Process 5393 attached [pid 5390] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5385] <... exit resumed>) = ? [pid 5386] exit(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5394 attached [pid 5393] set_robust_list(0x555566297660, 24 [pid 5390] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5389] <... openat resumed>) = 3 [pid 5386] <... exit resumed>) = ? [pid 5385] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5393 [pid 5393] <... set_robust_list resumed>) = 0 [pid 5390] close(3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5389] clone(child_stack=NULL, flags=0 [pid 5386] +++ exited with 0 +++ [pid 5387] <... clone resumed>) = 5394 ./strace-static-x86_64: Process 5395 attached [pid 5393] <... prctl resumed>) = 0 [pid 5387] ptrace(PTRACE_ATTACH, 5394 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5393] setpgid(0, 0) = 0 [pid 5390] <... close resumed>) = 0 ./strace-static-x86_64: Process 5396 attached [pid 5389] <... clone resumed>) = 5395 [pid 5387] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5396] set_robust_list(0x555566297660, 24 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5389] ptrace(PTRACE_ATTACH, 5395 [pid 5387] exit_group(0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5396 [pid 5396] <... set_robust_list resumed>) = 0 [pid 5393] <... openat resumed>) = 3 [pid 5389] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5387] <... exit_group resumed>) = ? [pid 5396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5393] write(3, "1000", 4 [pid 5390] <... openat resumed>) = 3 [pid 5389] exit_group(0 [pid 5396] <... prctl resumed>) = 0 [pid 5390] clone(child_stack=NULL, flags=0 [pid 5389] <... exit_group resumed>) = ? [pid 5396] setpgid(0, 0 [pid 5393] <... write resumed>) = 4 [pid 5389] +++ exited with 0 +++ [pid 5387] +++ exited with 0 +++ [pid 5396] <... setpgid resumed>) = 0 [pid 5393] close(3./strace-static-x86_64: Process 5397 attached [pid 5396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5393] <... close resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5393] memfd_create("syzkaller", 0 [pid 5390] <... clone resumed>) = 5397 [pid 5390] ptrace(PTRACE_ATTACH, 5397 [pid 5393] <... memfd_create resumed>) = 3 [pid 5390] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5390] exit_group(0 [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5390] <... exit_group resumed>) = ? [pid 5396] <... openat resumed>) = 3 [pid 5390] +++ exited with 0 +++ [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5396] write(3, "1000", 4) = 4 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5396] close(3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5396] <... close resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5396] memfd_create("syzkaller", 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5398 attached [pid 5396] <... memfd_create resumed>) = 3 [pid 5398] set_robust_list(0x555566297660, 24 [pid 5396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5398] <... set_robust_list resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5396] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5399 attached [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5398 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5399] set_robust_list(0x555566297660, 24) = 0 [pid 5398] <... prctl resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5399 [pid 5398] setpgid(0, 0./strace-static-x86_64: Process 5400 attached [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5398] <... setpgid resumed>) = 0 [pid 5396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5400] set_robust_list(0x555566297660, 24) = 0 [pid 5400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5400] setpgid(0, 0) = 0 [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5400] write(3, "1000", 4) = 4 [pid 5400] close(3) = 0 [pid 5400] memfd_create("syzkaller", 0) = 3 [pid 5399] <... prctl resumed>) = 0 [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5400 [pid 5400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5393] <... write resumed>) = 1048576 [pid 5399] setpgid(0, 0 [pid 5398] <... openat resumed>) = 3 [pid 5399] <... setpgid resumed>) = 0 [pid 5398] write(3, "1000", 4 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5398] <... write resumed>) = 4 [pid 5398] close(3) = 0 [pid 5400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5399] <... openat resumed>) = 3 [pid 5398] memfd_create("syzkaller", 0 [pid 5393] munmap(0x7f9e50600000, 138412032 [pid 5399] write(3, "1000", 4) = 4 [pid 5399] close(3) = 0 [pid 5398] <... memfd_create resumed>) = 3 [pid 5396] <... write resumed>) = 1048576 [pid 5393] <... munmap resumed>) = 0 [pid 5399] memfd_create("syzkaller", 0 [pid 5398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5396] munmap(0x7f9e50600000, 138412032 [pid 5393] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5400] <... write resumed>) = 1048576 [pid 5399] <... memfd_create resumed>) = 3 [pid 5398] <... mmap resumed>) = 0x7f9e50600000 [pid 5396] <... munmap resumed>) = 0 [pid 5393] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5400] munmap(0x7f9e50600000, 138412032) = 0 [pid 5400] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5396] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5393] close(3 [pid 5400] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5399] <... mmap resumed>) = 0x7f9e50600000 [pid 5396] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5391] exit(0 [pid 5400] close(3 [pid 5396] close(3 [pid 5391] <... exit resumed>) = ? [pid 5400] <... close resumed>) = 0 [pid 5399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5393] <... close resumed>) = 0 [pid 5391] +++ exited with 0 +++ [pid 5400] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5396] <... close resumed>) = 0 [pid 5393] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5398] <... write resumed>) = 1048576 [pid 5396] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5398] munmap(0x7f9e50600000, 138412032 [pid 5400] <... openat resumed>) = 3 [pid 5399] <... write resumed>) = 1048576 [pid 5396] <... openat resumed>) = 3 [pid 5393] <... openat resumed>) = 3 [pid 5400] clone(child_stack=NULL, flags=0 [pid 5399] munmap(0x7f9e50600000, 138412032 [pid 5398] <... munmap resumed>) = 0 [pid 5396] clone(child_stack=NULL, flags=0 [pid 5393] clone(child_stack=NULL, flags=0 [pid 5392] exit(0 [pid 5399] <... munmap resumed>) = 0 [pid 5392] <... exit resumed>) = ? [pid 5399] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5392] +++ exited with 0 +++ [pid 5399] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5401 attached [pid 5399] close(3 [pid 5398] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5403 attached [pid 5393] <... clone resumed>) = 5402 [pid 5400] <... clone resumed>) = 5403 ./strace-static-x86_64: Process 5402 attached [pid 5400] ptrace(PTRACE_ATTACH, 5403 [pid 5396] <... clone resumed>) = 5401 [pid 5393] ptrace(PTRACE_ATTACH, 5402) = -1 EPERM (Operation not permitted) [pid 5398] close(3 [pid 5400] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5398] <... close resumed>) = 0 [pid 5396] ptrace(PTRACE_ATTACH, 5401 [pid 5393] exit_group(0 [pid 5400] exit_group(0) = ? [pid 5399] <... close resumed>) = 0 [pid 5398] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5396] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5393] <... exit_group resumed>) = ? [pid 5400] +++ exited with 0 +++ [pid 5399] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5398] <... openat resumed>) = 3 [pid 5396] exit_group(0 [pid 5399] <... openat resumed>) = 3 [pid 5395] exit(0 [pid 5393] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5400, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5399] clone(child_stack=NULL, flags=0 [pid 5398] clone(child_stack=NULL, flags=0 [pid 5396] <... exit_group resumed>) = ? [pid 5395] <... exit resumed>) = ? [pid 5394] exit(0 [pid 5396] +++ exited with 0 +++ [pid 5395] +++ exited with 0 +++ [pid 5394] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5394] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5405 attached [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5396, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5404 attached [pid 5399] <... clone resumed>) = 5405 [pid 5398] <... clone resumed>) = 5404 [pid 5397] exit(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5399] ptrace(PTRACE_ATTACH, 5405 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5398] ptrace(PTRACE_ATTACH, 5404 [pid 5397] <... exit resumed>) = ? ./strace-static-x86_64: Process 5407 attached ./strace-static-x86_64: Process 5406 attached [pid 5399] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5398] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5397] +++ exited with 0 +++ [pid 5090] <... restart_syscall resumed>) = 0 [pid 5407] set_robust_list(0x555566297660, 24 [pid 5406] set_robust_list(0x555566297660, 24 [pid 5407] <... set_robust_list resumed>) = 0 [pid 5406] <... set_robust_list resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5407 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5406 [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] exit_group(0 [pid 5398] exit_group(0 [pid 5407] <... prctl resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5407] setpgid(0, 0) = 0 [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] <... exit_group resumed>) = ? [pid 5398] <... exit_group resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] <... prctl resumed>) = 0 [pid 5407] <... openat resumed>) = 3 [pid 5398] +++ exited with 0 +++ [pid 5406] setpgid(0, 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5406] <... setpgid resumed>) = 0 [pid 5399] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5406] <... openat resumed>) = 3 [pid 5406] write(3, "1000", 4) = 4 [pid 5406] close(3./strace-static-x86_64: Process 5408 attached [pid 5407] write(3, "1000", 4 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5408] set_robust_list(0x555566297660, 24 [pid 5407] <... write resumed>) = 4 [pid 5406] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5408 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] close(3 [pid 5406] memfd_create("syzkaller", 0 [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5407] <... close resumed>) = 0 [pid 5408] <... prctl resumed>) = 0 [pid 5407] memfd_create("syzkaller", 0 [pid 5406] <... memfd_create resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5408] setpgid(0, 0 [pid 5407] <... memfd_create resumed>) = 3 [pid 5406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5408] <... setpgid resumed>) = 0 [pid 5406] <... mmap resumed>) = 0x7f9e50600000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5409 attached [pid 5408] <... openat resumed>) = 3 [pid 5407] <... mmap resumed>) = 0x7f9e50600000 [pid 5406] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5408] write(3, "1000", 4 [pid 5409] set_robust_list(0x555566297660, 24) = 0 [pid 5408] <... write resumed>) = 4 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5409 [pid 5408] close(3) = 0 [pid 5408] memfd_create("syzkaller", 0) = 3 [pid 5408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5410 attached [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5409] <... prctl resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5410 [pid 5406] <... write resumed>) = 1048576 [pid 5410] set_robust_list(0x555566297660, 24) = 0 [pid 5409] setpgid(0, 0 [pid 5406] munmap(0x7f9e50600000, 138412032 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5409] <... setpgid resumed>) = 0 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5410] <... prctl resumed>) = 0 [pid 5409] write(3, "1000", 4 [pid 5406] <... munmap resumed>) = 0 [pid 5409] <... write resumed>) = 4 [pid 5406] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5410] setpgid(0, 0 [pid 5409] close(3) = 0 [pid 5410] <... setpgid resumed>) = 0 [pid 5406] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5409] memfd_create("syzkaller", 0 [pid 5406] close(3 [pid 5410] <... openat resumed>) = 3 [pid 5409] <... memfd_create resumed>) = 3 [pid 5407] <... write resumed>) = 1048576 [pid 5410] write(3, "1000", 4 [pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5407] munmap(0x7f9e50600000, 138412032 [pid 5410] <... write resumed>) = 4 [pid 5409] <... mmap resumed>) = 0x7f9e50600000 [pid 5407] <... munmap resumed>) = 0 [pid 5410] close(3) = 0 [pid 5407] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5406] <... close resumed>) = 0 [pid 5410] memfd_create("syzkaller", 0 [pid 5407] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5410] <... memfd_create resumed>) = 3 [pid 5407] close(3 [pid 5406] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5408] <... write resumed>) = 1048576 [pid 5408] munmap(0x7f9e50600000, 138412032 [pid 5406] <... openat resumed>) = 3 [pid 5410] <... mmap resumed>) = 0x7f9e50600000 [pid 5406] clone(child_stack=NULL, flags=0 [pid 5408] <... munmap resumed>) = 0 [pid 5408] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5411 attached [pid 5410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5407] <... close resumed>) = 0 [pid 5407] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5406] <... clone resumed>) = 5411 [pid 5402] exit(0 [pid 5401] exit(0 [pid 5408] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5407] <... openat resumed>) = 3 [pid 5406] ptrace(PTRACE_ATTACH, 5411 [pid 5402] <... exit resumed>) = ? [pid 5401] <... exit resumed>) = ? [pid 5406] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5406] exit_group(0 [pid 5402] +++ exited with 0 +++ [pid 5408] close(3 [pid 5407] clone(child_stack=NULL, flags=0 [pid 5406] <... exit_group resumed>) = ? [pid 5401] +++ exited with 0 +++ [pid 5403] exit(0) = ? [pid 5406] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5412 attached [pid 5407] <... clone resumed>) = 5412 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5407] ptrace(PTRACE_ATTACH, 5412) = -1 EPERM (Operation not permitted) [pid 5407] exit_group(0 [pid 5403] +++ exited with 0 +++ [pid 5407] <... exit_group resumed>) = ? [pid 5407] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5413 attached [pid 5413] set_robust_list(0x555566297660, 24) = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5414 attached [pid 5410] <... write resumed>) = 1048576 [pid 5409] <... write resumed>) = 1048576 [pid 5408] <... close resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5413 [pid 5414] set_robust_list(0x555566297660, 24 [pid 5413] <... prctl resumed>) = 0 [pid 5410] munmap(0x7f9e50600000, 138412032 [pid 5408] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] setpgid(0, 0 [pid 5410] <... munmap resumed>) = 0 [pid 5409] munmap(0x7f9e50600000, 138412032 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5414 [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5413] <... setpgid resumed>) = 0 [pid 5410] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5409] <... munmap resumed>) = 0 [pid 5408] <... openat resumed>) = 3 [pid 5414] <... prctl resumed>) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5408] clone(child_stack=NULL, flags=0 [pid 5414] setpgid(0, 0 [pid 5405] exit(0 [pid 5409] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5405] <... exit resumed>) = ? ./strace-static-x86_64: Process 5415 attached [pid 5414] <... setpgid resumed>) = 0 [pid 5413] <... openat resumed>) = 3 [pid 5410] close(3 [pid 5409] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] write(3, "1000", 4 [pid 5409] close(3 [pid 5408] <... clone resumed>) = 5415 [pid 5404] exit(0 [pid 5405] +++ exited with 0 +++ [pid 5414] <... openat resumed>) = 3 [pid 5413] <... write resumed>) = 4 [pid 5404] <... exit resumed>) = ? [pid 5414] write(3, "1000", 4 [pid 5408] ptrace(PTRACE_ATTACH, 5415 [pid 5414] <... write resumed>) = 4 [pid 5414] close(3) = 0 [pid 5414] memfd_create("syzkaller", 0) = 3 [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5413] close(3 [pid 5410] <... close resumed>) = 0 [pid 5409] <... close resumed>) = 0 [pid 5408] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5404] +++ exited with 0 +++ [pid 5414] <... mmap resumed>) = 0x7f9e50600000 [pid 5413] <... close resumed>) = 0 [pid 5410] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5409] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5408] exit_group(0 [pid 5413] memfd_create("syzkaller", 0 [pid 5410] <... openat resumed>) = 3 [pid 5408] <... exit_group resumed>) = ? [pid 5410] clone(child_stack=NULL, flags=0 [pid 5413] <... memfd_create resumed>) = 3 [pid 5409] <... openat resumed>) = 3 [pid 5413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5409] clone(child_stack=NULL, flags=0 [pid 5408] +++ exited with 0 +++ ./strace-static-x86_64: Process 5416 attached [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5410] <... clone resumed>) = 5416 [pid 5410] ptrace(PTRACE_ATTACH, 5416) = -1 EPERM (Operation not permitted) [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5417 attached [pid 5410] exit_group(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5410] <... exit_group resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5409] <... clone resumed>) = 5417 [pid 5409] ptrace(PTRACE_ATTACH, 5417./strace-static-x86_64: Process 5418 attached [pid 5410] +++ exited with 0 +++ [pid 5409] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5418] set_robust_list(0x555566297660, 24 [pid 5409] exit_group(0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5418 [pid 5414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5418] <... set_robust_list resumed>) = 0 [pid 5409] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... restart_syscall resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5418] <... prctl resumed>) = 0 [pid 5418] setpgid(0, 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5418] <... setpgid resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5409] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5418] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5419 attached [pid 5418] write(3, "1000", 4 [pid 5414] <... write resumed>) = 1048576 [pid 5413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5419 [pid 5418] <... write resumed>) = 4 [pid 5414] munmap(0x7f9e50600000, 138412032 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5419] set_robust_list(0x555566297660, 24 [pid 5418] close(3./strace-static-x86_64: Process 5420 attached [pid 5419] <... set_robust_list resumed>) = 0 [pid 5418] <... close resumed>) = 0 [pid 5414] <... munmap resumed>) = 0 [pid 5418] memfd_create("syzkaller", 0 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] set_robust_list(0x555566297660, 24 [pid 5419] <... prctl resumed>) = 0 [pid 5414] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5420] <... set_robust_list resumed>) = 0 [pid 5419] setpgid(0, 0) = 0 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5414] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] <... memfd_create resumed>) = 3 [pid 5414] close(3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5420 [pid 5420] <... prctl resumed>) = 0 [pid 5418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5420] setpgid(0, 0 [pid 5418] <... mmap resumed>) = 0x7f9e50600000 [pid 5419] <... openat resumed>) = 3 [pid 5420] <... setpgid resumed>) = 0 [pid 5419] write(3, "1000", 4) = 4 [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] close(3 [pid 5418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5414] <... close resumed>) = 0 [pid 5413] <... write resumed>) = 1048576 [pid 5419] <... close resumed>) = 0 [pid 5413] munmap(0x7f9e50600000, 138412032) = 0 [pid 5413] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5420] <... openat resumed>) = 3 [pid 5419] memfd_create("syzkaller", 0 [pid 5418] <... write resumed>) = 1048576 [pid 5414] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5420] write(3, "1000", 4 [pid 5419] <... memfd_create resumed>) = 3 [pid 5418] munmap(0x7f9e50600000, 138412032 [pid 5413] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5420] <... write resumed>) = 4 [pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5418] <... munmap resumed>) = 0 [pid 5414] <... openat resumed>) = 3 [pid 5420] close(3 [pid 5419] <... mmap resumed>) = 0x7f9e50600000 [pid 5418] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5413] close(3 [pid 5420] <... close resumed>) = 0 [pid 5418] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5414] clone(child_stack=NULL, flags=0 [pid 5413] <... close resumed>) = 0 [pid 5420] memfd_create("syzkaller", 0 [pid 5418] close(3 [pid 5411] exit(0) = ? [pid 5420] <... memfd_create resumed>) = 3 [pid 5420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5411] +++ exited with 0 +++ ./strace-static-x86_64: Process 5421 attached [pid 5414] <... clone resumed>) = 5421 [pid 5414] ptrace(PTRACE_ATTACH, 5421 [pid 5413] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5420] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5418] <... close resumed>) = 0 [pid 5414] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5413] <... openat resumed>) = 3 [pid 5414] exit_group(0 [pid 5412] exit(0 [pid 5418] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5414] <... exit_group resumed>) = ? [pid 5412] <... exit resumed>) = ? [pid 5418] <... openat resumed>) = 3 [pid 5414] +++ exited with 0 +++ [pid 5413] clone(child_stack=NULL, flags=0 [pid 5412] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5414, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5418] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5422 attached [pid 5420] <... write resumed>) = 1048576 ./strace-static-x86_64: Process 5423 attached [pid 5420] munmap(0x7f9e50600000, 138412032 [pid 5413] <... clone resumed>) = 5422 [pid 5420] <... munmap resumed>) = 0 [pid 5418] <... clone resumed>) = 5423 [pid 5413] ptrace(PTRACE_ATTACH, 5422 [pid 5419] <... write resumed>) = 1048576 [pid 5418] ptrace(PTRACE_ATTACH, 5423 [pid 5413] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5419] munmap(0x7f9e50600000, 138412032 [pid 5418] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5413] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5418] exit_group(0 [pid 5413] <... exit_group resumed>) = ? [pid 5420] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5419] <... munmap resumed>) = 0 [pid 5418] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5420] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5413] +++ exited with 0 +++ [pid 5420] close(3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5418] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5419] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5419] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5415] exit(0./strace-static-x86_64: Process 5424 attached ) = ? [pid 5419] close(3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5424 [pid 5424] set_robust_list(0x555566297660, 24 [pid 5420] <... close resumed>) = 0 [pid 5415] +++ exited with 0 +++ [pid 5424] <... set_robust_list resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5424] <... prctl resumed>) = 0 [pid 5424] setpgid(0, 0./strace-static-x86_64: Process 5425 attached ) = 0 [pid 5420] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5425 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] set_robust_list(0x555566297660, 24 [pid 5420] clone(child_stack=NULL, flags=0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5425] <... set_robust_list resumed>) = 0 [pid 5424] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5427 attached ./strace-static-x86_64: Process 5426 attached [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5424] write(3, "1000", 4 [pid 5419] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5426 [pid 5426] set_robust_list(0x555566297660, 24 [pid 5425] <... prctl resumed>) = 0 [pid 5424] <... write resumed>) = 4 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5424] close(3 [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] setpgid(0, 0 [pid 5424] <... close resumed>) = 0 [pid 5420] <... clone resumed>) = 5427 [pid 5419] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5426] <... prctl resumed>) = 0 [pid 5425] <... setpgid resumed>) = 0 [pid 5424] memfd_create("syzkaller", 0 [pid 5420] ptrace(PTRACE_ATTACH, 5427 [pid 5426] setpgid(0, 0 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5424] <... memfd_create resumed>) = 3 [pid 5420] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5419] <... openat resumed>) = 3 [pid 5426] <... setpgid resumed>) = 0 [pid 5425] <... openat resumed>) = 3 [pid 5424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5419] clone(child_stack=NULL, flags=0 [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5420] exit_group(0./strace-static-x86_64: Process 5428 attached [pid 5425] write(3, "1000", 4 [pid 5424] <... mmap resumed>) = 0x7f9e50600000 [pid 5419] <... clone resumed>) = 5428 [pid 5426] <... openat resumed>) = 3 [pid 5425] <... write resumed>) = 4 [pid 5420] <... exit_group resumed>) = ? [pid 5419] ptrace(PTRACE_ATTACH, 5428 [pid 5417] exit(0 [pid 5416] exit(0 [pid 5419] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5417] <... exit resumed>) = ? [pid 5416] <... exit resumed>) = ? [pid 5419] exit_group(0) = ? [pid 5425] close(3 [pid 5426] write(3, "1000", 4 [pid 5425] <... close resumed>) = 0 [pid 5426] <... write resumed>) = 4 [pid 5425] memfd_create("syzkaller", 0 [pid 5426] close(3 [pid 5425] <... memfd_create resumed>) = 3 [pid 5420] +++ exited with 0 +++ [pid 5416] +++ exited with 0 +++ [pid 5426] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5426] memfd_create("syzkaller", 0 [pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5419] +++ exited with 0 +++ [pid 5426] <... memfd_create resumed>) = 3 [pid 5425] <... mmap resumed>) = 0x7f9e50600000 [pid 5417] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5424] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5429 attached , child_tidptr=0x555566297650) = 5429 [pid 5429] set_robust_list(0x555566297660, 24) = 0 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5429] setpgid(0, 0) = 0 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5429] <... openat resumed>) = 3 [pid 5429] write(3, "1000", 4) = 4 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5429] close(3) = 0 ./strace-static-x86_64: Process 5430 attached [pid 5429] memfd_create("syzkaller", 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5430 [pid 5429] <... memfd_create resumed>) = 3 [pid 5430] set_robust_list(0x555566297660, 24 [pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5430] <... set_robust_list resumed>) = 0 [pid 5429] <... mmap resumed>) = 0x7f9e50600000 [pid 5424] <... write resumed>) = 1048576 [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5430] setpgid(0, 0) = 0 [pid 5424] munmap(0x7f9e50600000, 138412032 [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5425] <... write resumed>) = 1048576 [pid 5424] <... munmap resumed>) = 0 [pid 5426] <... write resumed>) = 1048576 [pid 5430] <... openat resumed>) = 3 [pid 5426] munmap(0x7f9e50600000, 138412032 [pid 5430] write(3, "1000", 4 [pid 5425] munmap(0x7f9e50600000, 138412032 [pid 5424] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5430] <... write resumed>) = 4 [pid 5426] <... munmap resumed>) = 0 [pid 5425] <... munmap resumed>) = 0 [pid 5424] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5430] close(3) = 0 [pid 5424] close(3 [pid 5430] memfd_create("syzkaller", 0 [pid 5429] <... write resumed>) = 1048576 [pid 5426] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5425] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5429] munmap(0x7f9e50600000, 138412032 [pid 5426] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5425] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5430] <... memfd_create resumed>) = 3 [pid 5429] <... munmap resumed>) = 0 [pid 5430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5426] close(3 [pid 5425] close(3 [pid 5430] <... mmap resumed>) = 0x7f9e50600000 [pid 5429] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5425] <... close resumed>) = 0 [pid 5429] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5424] <... close resumed>) = 0 [pid 5421] exit(0) = ? [pid 5430] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5429] close(3 [pid 5426] <... close resumed>) = 0 [pid 5425] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5424] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5429] <... close resumed>) = 0 [pid 5426] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5425] <... openat resumed>) = 3 [pid 5424] <... openat resumed>) = 3 [pid 5421] +++ exited with 0 +++ [pid 5430] <... write resumed>) = 1048576 [pid 5429] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5426] <... openat resumed>) = 3 [pid 5425] clone(child_stack=NULL, flags=0 [pid 5424] clone(child_stack=NULL, flags=0 [pid 5422] exit(0 [pid 5423] exit(0) = ? [pid 5423] +++ exited with 0 +++ [pid 5430] munmap(0x7f9e50600000, 138412032 [pid 5429] <... openat resumed>) = 3 [pid 5426] clone(child_stack=NULL, flags=0 [pid 5422] <... exit resumed>) = ? [ 67.011889][ T5100] NILFS (loop2): vblocknr = 23 has abnormal lifetime: start cno (= 4294967298) > current cno (= 3) [ 67.024345][ T5100] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=4) [ 67.037097][ T5102] NILFS (loop4): vblocknr = 23 has abnormal lifetime: start cno (= 4294967298) > current cno (= 3) [ 67.045323][ T5100] Remounting filesystem read-only ./strace-static-x86_64: Process 5433 attached ./strace-static-x86_64: Process 5432 attached ./strace-static-x86_64: Process 5431 attached [pid 5430] <... munmap resumed>) = 0 [pid 5429] clone(child_stack=NULL, flags=0 [pid 5425] <... clone resumed>) = 5432 [pid 5424] <... clone resumed>) = 5431 [pid 5430] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5427] exit(0 [pid 5422] +++ exited with 0 +++ [pid 5427] <... exit resumed>) = ? [pid 5424] ptrace(PTRACE_ATTACH, 5431 [pid 5430] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5427] +++ exited with 0 +++ [pid 5430] close(3 [pid 5426] <... clone resumed>) = 5433 [pid 5425] ptrace(PTRACE_ATTACH, 5432 [pid 5424] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5434 attached [pid 5429] <... clone resumed>) = 5434 [pid 5426] ptrace(PTRACE_ATTACH, 5433 [pid 5425] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5424] exit_group(0 [pid 5430] <... close resumed>) = 0 [pid 5430] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5429] ptrace(PTRACE_ATTACH, 5434 [pid 5426] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5425] exit_group(0 [pid 5424] <... exit_group resumed>) = ? [pid 5430] <... openat resumed>) = 3 [pid 5429] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5428] exit(0 [pid 5426] exit_group(0 [pid 5425] <... exit_group resumed>) = ? [pid 5424] +++ exited with 0 +++ [pid 5430] clone(child_stack=NULL, flags=0 [pid 5429] exit_group(0 [pid 5428] <... exit resumed>) = ? [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5429] <... exit_group resumed>) = ? [pid 5426] <... exit_group resumed>) = ? [pid 5425] +++ exited with 0 +++ [pid 5428] +++ exited with 0 +++ [pid 5426] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5426, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5429] +++ exited with 0 +++ [pid 5093] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5435 attached [pid 5430] <... clone resumed>) = 5435 [pid 5430] ptrace(PTRACE_ATTACH, 5435 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5430] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5430] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5436 attached [pid 5430] <... exit_group resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5436] set_robust_list(0x555566297660, 24 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5436] <... set_robust_list resumed>) = 0 [pid 5430] +++ exited with 0 +++ [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5436 [pid 5436] <... prctl resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5430, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5436] setpgid(0, 0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5436] <... setpgid resumed>) = 0 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5437 [ 67.051975][ T5102] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=4) [ 67.071402][ T5102] Remounting filesystem read-only [ 67.094819][ T5103] NILFS (loop1): vblocknr = 23 has abnormal lifetime: start cno (= 4294967298) > current cno (= 3) [pid 5436] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5436] write(3, "1000", 4 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5438 attached [pid 5436] <... write resumed>) = 4 [pid 5436] close(3 [pid 5438] set_robust_list(0x555566297660, 24 [pid 5436] <... close resumed>) = 0 ./strace-static-x86_64: Process 5439 attached ./strace-static-x86_64: Process 5437 attached [pid 5438] <... set_robust_list resumed>) = 0 [pid 5436] memfd_create("syzkaller", 0 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5439] set_robust_list(0x555566297660, 24 [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5437] set_robust_list(0x555566297660, 24 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5439 [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] <... prctl resumed>) = 0 [pid 5436] <... memfd_create resumed>) = 3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5438 [pid 5438] setpgid(0, 0 [pid 5436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5438] <... setpgid resumed>) = 0 [pid 5436] <... mmap resumed>) = 0x7f9e50600000 [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5437] <... set_robust_list resumed>) = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5439] <... prctl resumed>) = 0 [pid 5439] setpgid(0, 0 [pid 5437] setpgid(0, 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5439] <... setpgid resumed>) = 0 [pid 5437] <... setpgid resumed>) = 0 [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5438] <... openat resumed>) = 3 [pid 5439] write(3, "1000", 4 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5439] <... write resumed>) = 4 [pid 5437] <... openat resumed>) = 3 [pid 5439] close(3 [pid 5437] write(3, "1000", 4 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5439] <... close resumed>) = 0 [pid 5438] write(3, "1000", 4 [pid 5437] <... write resumed>) = 4 [pid 5438] <... write resumed>) = 4 [pid 5439] memfd_create("syzkaller", 0 [pid 5438] close(3 [pid 5437] close(3./strace-static-x86_64: Process 5440 attached [pid 5439] <... memfd_create resumed>) = 3 [pid 5438] <... close resumed>) = 0 [pid 5437] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5440 [pid 5440] set_robust_list(0x555566297660, 24 [pid 5439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5438] memfd_create("syzkaller", 0 [pid 5437] memfd_create("syzkaller", 0 [pid 5436] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5440] <... set_robust_list resumed>) = 0 [pid 5438] <... memfd_create resumed>) = 3 [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5439] <... mmap resumed>) = 0x7f9e50600000 [pid 5438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5437] <... memfd_create resumed>) = 3 [pid 5436] <... write resumed>) = 1048576 [pid 5440] setpgid(0, 0) = 0 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5440] write(3, "1000", 4) = 4 [pid 5440] close(3) = 0 [pid 5440] memfd_create("syzkaller", 0) = 3 [pid 5440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5438] <... write resumed>) = 1048576 [pid 5437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5436] munmap(0x7f9e50600000, 138412032 [pid 5440] <... mmap resumed>) = 0x7f9e50600000 [pid 5437] <... mmap resumed>) = 0x7f9e50600000 [pid 5436] <... munmap resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5436] close(3 [ 67.106871][ T5103] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=4) [ 67.120387][ T5103] Remounting filesystem read-only [pid 5440] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5438] munmap(0x7f9e50600000, 138412032) = 0 [pid 5438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5438] close(3) = 0 [pid 5437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5436] <... close resumed>) = 0 [pid 5436] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5436] clone(child_stack=NULL, flags=0 [pid 5439] <... write resumed>) = 1048576 ./strace-static-x86_64: Process 5441 attached [pid 5436] <... clone resumed>) = 5441 [pid 5440] <... write resumed>) = 1048576 [pid 5439] munmap(0x7f9e50600000, 138412032 [pid 5438] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5437] <... write resumed>) = 1048576 [pid 5436] ptrace(PTRACE_ATTACH, 5441 [pid 5440] munmap(0x7f9e50600000, 138412032 [pid 5439] <... munmap resumed>) = 0 [pid 5438] <... openat resumed>) = 3 [pid 5437] munmap(0x7f9e50600000, 138412032 [pid 5436] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5440] <... munmap resumed>) = 0 [pid 5439] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5438] clone(child_stack=NULL, flags=0 [pid 5437] <... munmap resumed>) = 0 [pid 5436] exit_group(0 [pid 5439] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5436] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5442 attached [pid 5440] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5439] close(3 [pid 5437] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5436] +++ exited with 0 +++ [pid 5433] exit(0 [pid 5440] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5438] <... clone resumed>) = 5442 [pid 5437] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5433] <... exit resumed>) = ? [pid 5432] exit(0 [pid 5431] exit(0 [pid 5440] close(3 [pid 5439] <... close resumed>) = 0 [pid 5438] ptrace(PTRACE_ATTACH, 5442 [pid 5437] close(3 [pid 5433] +++ exited with 0 +++ [pid 5432] <... exit resumed>) = ? [pid 5431] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5436, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5432] +++ exited with 0 +++ [pid 5431] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5438] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5438] exit_group(0) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5434] exit(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5434] <... exit resumed>) = ? [pid 5438] +++ exited with 0 +++ [pid 5437] <... close resumed>) = 0 ./strace-static-x86_64: Process 5443 attached [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5438, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5443] set_robust_list(0x555566297660, 24 [pid 5434] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5443 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5443] <... set_robust_list resumed>) = 0 [pid 5437] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5444 attached [pid 5443] <... prctl resumed>) = 0 [pid 5439] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5437] <... openat resumed>) = 3 [pid 5444] set_robust_list(0x555566297660, 24 [pid 5443] setpgid(0, 0 [pid 5440] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5444 [pid 5444] <... set_robust_list resumed>) = 0 [pid 5443] <... setpgid resumed>) = 0 [pid 5439] <... openat resumed>) = 3 [pid 5437] clone(child_stack=NULL, flags=0 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5444] setpgid(0, 0 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5444] <... setpgid resumed>) = 0 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] <... openat resumed>) = 3 [pid 5440] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5439] clone(child_stack=NULL, flags=0 [pid 5444] <... openat resumed>) = 3 [pid 5443] write(3, "1000", 4 [pid 5444] write(3, "1000", 4 [pid 5440] <... openat resumed>) = 3 [pid 5444] <... write resumed>) = 4 [pid 5444] close(3) = 0 [pid 5444] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5446 attached ./strace-static-x86_64: Process 5445 attached [pid 5443] <... write resumed>) = 4 [pid 5440] clone(child_stack=NULL, flags=0 [pid 5439] <... clone resumed>) = 5445 [pid 5444] <... memfd_create resumed>) = 3 [pid 5443] close(3 [pid 5435] exit(0 [pid 5444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5443] <... close resumed>) = 0 [pid 5435] <... exit resumed>) = ? ./strace-static-x86_64: Process 5447 attached [pid 5444] <... mmap resumed>) = 0x7f9e50600000 [pid 5443] memfd_create("syzkaller", 0 [pid 5439] ptrace(PTRACE_ATTACH, 5445 [pid 5437] <... clone resumed>) = 5446 [pid 5435] +++ exited with 0 +++ [pid 5443] <... memfd_create resumed>) = 3 [pid 5440] <... clone resumed>) = 5447 [pid 5439] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5437] ptrace(PTRACE_ATTACH, 5446 [pid 5440] ptrace(PTRACE_ATTACH, 5447 [pid 5439] exit_group(0 [pid 5437] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5440] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5439] <... exit_group resumed>) = ? [pid 5437] exit_group(0 [pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5440] exit_group(0 [pid 5439] +++ exited with 0 +++ [pid 5437] <... exit_group resumed>) = ? [pid 5440] <... exit_group resumed>) = ? [pid 5437] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5440] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5448 attached [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5448] set_robust_list(0x555566297660, 24 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5448 [pid 5448] <... set_robust_list resumed>) = 0 [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5448] <... prctl resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5448] setpgid(0, 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5449 attached [pid 5448] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5450 attached [pid 5449] set_robust_list(0x555566297660, 24 [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5449 [pid 5450] set_robust_list(0x555566297660, 24 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5448] <... openat resumed>) = 3 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5448] write(3, "1000", 4 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5450 [pid 5449] setpgid(0, 0 [pid 5448] <... write resumed>) = 4 [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] <... setpgid resumed>) = 0 [pid 5448] close(3 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5448] <... close resumed>) = 0 [pid 5448] memfd_create("syzkaller", 0 [pid 5443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5450] <... prctl resumed>) = 0 [pid 5449] <... openat resumed>) = 3 [pid 5448] <... memfd_create resumed>) = 3 [pid 5450] setpgid(0, 0) = 0 [pid 5449] write(3, "1000", 4 [pid 5448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] <... write resumed>) = 4 [pid 5448] <... mmap resumed>) = 0x7f9e50600000 [pid 5449] close(3) = 0 [pid 5449] memfd_create("syzkaller", 0) = 3 [pid 5449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5450] <... openat resumed>) = 3 [pid 5448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5444] <... write resumed>) = 1048576 [pid 5450] write(3, "1000", 4 [pid 5443] <... write resumed>) = 1048576 [pid 5450] <... write resumed>) = 4 [pid 5450] close(3 [pid 5444] munmap(0x7f9e50600000, 138412032 [pid 5443] munmap(0x7f9e50600000, 138412032 [pid 5450] <... close resumed>) = 0 [pid 5443] <... munmap resumed>) = 0 [pid 5450] memfd_create("syzkaller", 0 [pid 5443] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5444] <... munmap resumed>) = 0 [pid 5450] <... memfd_create resumed>) = 3 [pid 5443] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5443] close(3) = 0 [pid 5450] <... mmap resumed>) = 0x7f9e50600000 [pid 5450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5444] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5443] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5448] <... write resumed>) = 1048576 [pid 5444] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5450] <... write resumed>) = 1048576 [pid 5448] munmap(0x7f9e50600000, 138412032 [pid 5444] close(3 [pid 5443] <... openat resumed>) = 3 [pid 5448] <... munmap resumed>) = 0 [pid 5443] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5451 attached [pid 5449] <... write resumed>) = 1048576 [pid 5448] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5449] munmap(0x7f9e50600000, 138412032 [pid 5450] munmap(0x7f9e50600000, 138412032 [pid 5443] <... clone resumed>) = 5451 [pid 5450] <... munmap resumed>) = 0 [pid 5449] <... munmap resumed>) = 0 [pid 5448] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5443] ptrace(PTRACE_ATTACH, 5451 [pid 5449] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5448] close(3 [pid 5443] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5450] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5449] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5443] exit_group(0 [pid 5450] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5443] <... exit_group resumed>) = ? [pid 5450] close(3 [pid 5449] close(3 [pid 5444] <... close resumed>) = 0 [pid 5443] +++ exited with 0 +++ [pid 5441] exit(0 [pid 5448] <... close resumed>) = 0 [pid 5450] <... close resumed>) = 0 [pid 5441] <... exit resumed>) = ? [pid 5448] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5450] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5449] <... close resumed>) = 0 [pid 5448] <... openat resumed>) = 3 [pid 5444] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5450] <... openat resumed>) = 3 [pid 5449] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5448] clone(child_stack=NULL, flags=0 [pid 5444] <... openat resumed>) = 3 [pid 5441] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5450] clone(child_stack=NULL, flags=0 [pid 5444] clone(child_stack=NULL, flags=0 [pid 5442] exit(0 [pid 5449] <... openat resumed>) = 3 [pid 5449] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5455 attached ./strace-static-x86_64: Process 5454 attached ./strace-static-x86_64: Process 5453 attached ./strace-static-x86_64: Process 5452 attached [pid 5442] <... exit resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5450] <... clone resumed>) = 5454 [pid 5449] <... clone resumed>) = 5455 [pid 5448] <... clone resumed>) = 5453 [pid 5444] <... clone resumed>) = 5452 [pid 5442] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5456 attached [pid 5450] ptrace(PTRACE_ATTACH, 5454 [pid 5449] ptrace(PTRACE_ATTACH, 5455 [pid 5448] ptrace(PTRACE_ATTACH, 5453 [pid 5444] ptrace(PTRACE_ATTACH, 5452 [pid 5456] set_robust_list(0x555566297660, 24 [pid 5450] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5449] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5448] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5444] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5456] <... set_robust_list resumed>) = 0 [pid 5450] exit_group(0 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5450] <... exit_group resumed>) = ? [pid 5449] exit_group(0 [pid 5448] exit_group(0 [pid 5444] exit_group(0 [pid 5456] <... prctl resumed>) = 0 [pid 5449] <... exit_group resumed>) = ? [pid 5448] <... exit_group resumed>) = ? [pid 5456] setpgid(0, 0) = 0 [pid 5450] +++ exited with 0 +++ [pid 5448] +++ exited with 0 +++ [pid 5444] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5456 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] +++ exited with 0 +++ [pid 5444] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5450, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5448, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5456] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5456] write(3, "1000", 4 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5456] <... write resumed>) = 4 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... restart_syscall resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] close(3./strace-static-x86_64: Process 5457 attached ) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5457] set_robust_list(0x555566297660, 24 [pid 5456] memfd_create("syzkaller", 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5457] <... set_robust_list resumed>) = 0 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5457] <... prctl resumed>) = 0 [pid 5456] <... memfd_create resumed>) = 3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5457] setpgid(0, 0 [pid 5456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5457 [pid 5457] <... setpgid resumed>) = 0 [pid 5456] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5458 ./strace-static-x86_64: Process 5460 attached ./strace-static-x86_64: Process 5459 attached ./strace-static-x86_64: Process 5458 attached [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5459 [pid 5460] set_robust_list(0x555566297660, 24 [pid 5459] set_robust_list(0x555566297660, 24 [pid 5458] set_robust_list(0x555566297660, 24 [pid 5457] <... openat resumed>) = 3 [pid 5447] exit(0 [pid 5446] exit(0 [pid 5445] exit(0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5460 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5458] <... set_robust_list resumed>) = 0 [pid 5457] write(3, "1000", 4 [pid 5447] <... exit resumed>) = ? [pid 5446] <... exit resumed>) = ? [pid 5445] <... exit resumed>) = ? [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5457] <... write resumed>) = 4 [pid 5447] +++ exited with 0 +++ [pid 5460] <... prctl resumed>) = 0 [pid 5460] setpgid(0, 0) = 0 [pid 5445] +++ exited with 0 +++ [pid 5457] close(3) = 0 [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] <... prctl resumed>) = 0 [pid 5458] <... prctl resumed>) = 0 [pid 5457] memfd_create("syzkaller", 0 [pid 5459] setpgid(0, 0 [pid 5458] setpgid(0, 0 [pid 5459] <... setpgid resumed>) = 0 [pid 5457] <... memfd_create resumed>) = 3 [pid 5460] <... openat resumed>) = 3 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] <... setpgid resumed>) = 0 [pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5446] +++ exited with 0 +++ [pid 5460] write(3, "1000", 4 [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5457] <... mmap resumed>) = 0x7f9e50600000 [pid 5460] <... write resumed>) = 4 [pid 5459] <... openat resumed>) = 3 [pid 5460] close(3) = 0 [pid 5458] <... openat resumed>) = 3 [pid 5459] write(3, "1000", 4) = 4 [pid 5458] write(3, "1000", 4 [pid 5459] close(3 [pid 5458] <... write resumed>) = 4 [pid 5459] <... close resumed>) = 0 [pid 5458] close(3 [pid 5460] memfd_create("syzkaller", 0 [pid 5459] memfd_create("syzkaller", 0 [pid 5458] <... close resumed>) = 0 [pid 5460] <... memfd_create resumed>) = 3 [pid 5460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5459] <... memfd_create resumed>) = 3 [pid 5458] memfd_create("syzkaller", 0 [pid 5459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5458] <... memfd_create resumed>) = 3 [pid 5457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5456] <... write resumed>) = 1048576 [pid 5459] <... mmap resumed>) = 0x7f9e50600000 [pid 5458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5456] munmap(0x7f9e50600000, 138412032 [pid 5458] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5456] <... munmap resumed>) = 0 [pid 5459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5457] <... write resumed>) = 1048576 [pid 5456] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5460] <... write resumed>) = 1048576 [pid 5457] munmap(0x7f9e50600000, 138412032 [pid 5456] close(3 [pid 5460] munmap(0x7f9e50600000, 138412032 [pid 5457] <... munmap resumed>) = 0 [pid 5456] <... close resumed>) = 0 [pid 5460] <... munmap resumed>) = 0 [pid 5457] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5457] close(3 [pid 5458] <... write resumed>) = 1048576 [pid 5460] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5459] <... write resumed>) = 1048576 [pid 5457] <... close resumed>) = 0 [pid 5456] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5459] munmap(0x7f9e50600000, 138412032 [pid 5458] munmap(0x7f9e50600000, 138412032 [pid 5451] exit(0 [pid 5460] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5459] <... munmap resumed>) = 0 [pid 5458] <... munmap resumed>) = 0 [pid 5457] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5456] <... openat resumed>) = 3 [pid 5451] <... exit resumed>) = ? [pid 5459] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5457] <... openat resumed>) = 3 [pid 5460] close(3 [pid 5459] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5458] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5457] clone(child_stack=NULL, flags=0 [pid 5456] clone(child_stack=NULL, flags=0 [pid 5460] <... close resumed>) = 0 [pid 5459] close(3 [pid 5458] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5451] +++ exited with 0 +++ ./strace-static-x86_64: Process 5461 attached [pid 5458] close(3./strace-static-x86_64: Process 5462 attached [pid 5459] <... close resumed>) = 0 [pid 5458] <... close resumed>) = 0 [pid 5457] <... clone resumed>) = 5462 [pid 5456] <... clone resumed>) = 5461 [pid 5456] ptrace(PTRACE_ATTACH, 5461) = -1 EPERM (Operation not permitted) [pid 5456] exit_group(0) = ? [pid 5459] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5457] ptrace(PTRACE_ATTACH, 5462 [pid 5456] +++ exited with 0 +++ [pid 5460] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5457] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5460] <... openat resumed>) = 3 [pid 5457] exit_group(0) = ? [pid 5460] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5463 attached ) = 5463 [pid 5460] ptrace(PTRACE_ATTACH, 5463 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5460] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5459] <... openat resumed>) = 3 [pid 5460] exit_group(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5459] clone(child_stack=NULL, flags=0 [pid 5460] <... exit_group resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5460] +++ exited with 0 +++ [pid 5458] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5460, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5458] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5465 attached [pid 5452] exit(0 [pid 5465] set_robust_list(0x555566297660, 24 [pid 5458] clone(child_stack=NULL, flags=0 [pid 5452] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5464 attached [pid 5465] <... set_robust_list resumed>) = 0 [pid 5459] <... clone resumed>) = 5464 [pid 5457] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5465 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5466 attached [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] ptrace(PTRACE_ATTACH, 5464 [pid 5455] exit(0 [pid 5454] exit(0 [pid 5452] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5465] <... prctl resumed>) = 0 [pid 5459] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5455] <... exit resumed>) = ? [pid 5454] <... exit resumed>) = ? [pid 5453] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5467 attached [pid 5465] setpgid(0, 0 [pid 5458] <... clone resumed>) = 5466 [pid 5453] <... exit resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5467 [pid 5467] set_robust_list(0x555566297660, 24 [pid 5465] <... setpgid resumed>) = 0 [pid 5458] ptrace(PTRACE_ATTACH, 5466 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] <... set_robust_list resumed>) = 0 [pid 5458] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... openat resumed>) = 3 [pid 5458] exit_group(0 [pid 5453] +++ exited with 0 +++ [pid 5459] exit_group(0 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5467] <... prctl resumed>) = 0 [pid 5465] write(3, "1000", 4 [pid 5458] <... exit_group resumed>) = ? [pid 5089] <... restart_syscall resumed>) = 0 [pid 5467] setpgid(0, 0 [pid 5465] <... write resumed>) = 4 [pid 5459] <... exit_group resumed>) = ? [pid 5458] +++ exited with 0 +++ [pid 5454] +++ exited with 0 +++ [pid 5467] <... setpgid resumed>) = 0 [pid 5465] close(3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5465] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] memfd_create("syzkaller", 0 [pid 5467] <... openat resumed>) = 3 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5465] <... memfd_create resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5467] write(3, "1000", 4 [pid 5465] <... mmap resumed>) = 0x7f9e50600000 [pid 5455] +++ exited with 0 +++ [pid 5467] <... write resumed>) = 4 [pid 5465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5459] +++ exited with 0 +++ [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5468 ./strace-static-x86_64: Process 5468 attached [pid 5467] close(3 [pid 5468] set_robust_list(0x555566297660, 24 [pid 5467] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5467] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] <... memfd_create resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5469 attached [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5469 [pid 5469] set_robust_list(0x555566297660, 24 [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5469] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5470 attached [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5467] <... mmap resumed>) = 0x7f9e50600000 [pid 5470] set_robust_list(0x555566297660, 24 [pid 5469] <... prctl resumed>) = 0 [pid 5467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5468] <... prctl resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5470 [pid 5468] setpgid(0, 0) = 0 [pid 5470] <... set_robust_list resumed>) = 0 [pid 5469] setpgid(0, 0 [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] <... setpgid resumed>) = 0 [pid 5468] <... openat resumed>) = 3 [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] write(3, "1000", 4 [pid 5470] <... prctl resumed>) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5468] <... write resumed>) = 4 [pid 5470] setpgid(0, 0) = 0 [pid 5469] <... openat resumed>) = 3 [pid 5468] close(3 [pid 5467] <... write resumed>) = 1048576 [pid 5465] <... write resumed>) = 1048576 [pid 5468] <... close resumed>) = 0 [pid 5469] write(3, "1000", 4 [pid 5468] memfd_create("syzkaller", 0 [pid 5467] munmap(0x7f9e50600000, 138412032 [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] <... write resumed>) = 4 [pid 5467] <... munmap resumed>) = 0 [pid 5468] <... memfd_create resumed>) = 3 [pid 5469] close(3 [pid 5468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5470] <... openat resumed>) = 3 [pid 5467] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5469] <... close resumed>) = 0 [pid 5470] write(3, "1000", 4 [pid 5469] memfd_create("syzkaller", 0 [pid 5468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5467] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5470] <... write resumed>) = 4 [pid 5467] close(3 [pid 5470] close(3 [pid 5469] <... memfd_create resumed>) = 3 [pid 5467] <... close resumed>) = 0 [pid 5470] <... close resumed>) = 0 [pid 5469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5470] memfd_create("syzkaller", 0 [pid 5468] <... write resumed>) = 1048576 [pid 5467] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5465] munmap(0x7f9e50600000, 138412032 [pid 5468] munmap(0x7f9e50600000, 138412032 [pid 5467] <... openat resumed>) = 3 [pid 5465] <... munmap resumed>) = 0 [pid 5470] <... memfd_create resumed>) = 3 [pid 5468] <... munmap resumed>) = 0 [pid 5465] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5467] clone(child_stack=NULL, flags=0 [pid 5465] close(3./strace-static-x86_64: Process 5471 attached [pid 5470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5465] <... close resumed>) = 0 [pid 5470] <... mmap resumed>) = 0x7f9e50600000 [pid 5468] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5467] <... clone resumed>) = 5471 [pid 5468] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5467] ptrace(PTRACE_ATTACH, 5471 [pid 5468] close(3 [pid 5467] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5468] <... close resumed>) = 0 [pid 5467] exit_group(0) = ? [pid 5467] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5465] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5472 attached [pid 5470] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5472] set_robust_list(0x555566297660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5472 [pid 5472] <... set_robust_list resumed>) = 0 [pid 5465] <... openat resumed>) = 3 [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5465] clone(child_stack=NULL, flags=0 [pid 5472] <... prctl resumed>) = 0 [pid 5472] setpgid(0, 0 [pid 5468] <... openat resumed>) = 3 [pid 5472] <... setpgid resumed>) = 0 [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5468] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5473 attached [pid 5472] write(3, "1000", 4) = 4 [pid 5472] close(3 [pid 5465] <... clone resumed>) = 5473 [pid 5472] <... close resumed>) = 0 [pid 5465] ptrace(PTRACE_ATTACH, 5473 [pid 5472] memfd_create("syzkaller", 0 [pid 5465] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5472] <... memfd_create resumed>) = 3 [pid 5468] <... clone resumed>) = 5474 [pid 5465] exit_group(0./strace-static-x86_64: Process 5474 attached [pid 5472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5468] ptrace(PTRACE_ATTACH, 5474 [pid 5465] <... exit_group resumed>) = ? [pid 5472] <... mmap resumed>) = 0x7f9e50600000 [pid 5469] <... write resumed>) = 1048576 [pid 5468] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5465] +++ exited with 0 +++ [pid 5469] munmap(0x7f9e50600000, 138412032 [pid 5468] exit_group(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5468] <... exit_group resumed>) = ? [pid 5469] <... munmap resumed>) = 0 [pid 5468] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5468, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5475 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5475 attached [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5475] set_robust_list(0x555566297660, 24) = 0 [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5469] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5475] <... prctl resumed>) = 0 [pid 5472] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5470] <... write resumed>) = 1048576 [pid 5469] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5475] setpgid(0, 0 [pid 5469] close(3./strace-static-x86_64: Process 5476 attached [pid 5476] set_robust_list(0x555566297660, 24 [pid 5475] <... setpgid resumed>) = 0 [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... openat resumed>) = 3 [pid 5461] exit(0 [pid 5476] <... prctl resumed>) = 0 [pid 5475] write(3, "1000", 4 [pid 5461] <... exit resumed>) = ? [pid 5476] setpgid(0, 0 [pid 5470] munmap(0x7f9e50600000, 138412032 [pid 5469] <... close resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5476 [pid 5476] <... setpgid resumed>) = 0 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] <... munmap resumed>) = 0 [pid 5462] exit(0 [pid 5469] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5470] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5462] <... exit resumed>) = ? [pid 5470] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5462] +++ exited with 0 +++ [pid 5461] +++ exited with 0 +++ [pid 5470] close(3 [pid 5476] <... openat resumed>) = 3 [pid 5475] <... write resumed>) = 4 [pid 5476] write(3, "1000", 4 [pid 5475] close(3 [pid 5476] <... write resumed>) = 4 [pid 5475] <... close resumed>) = 0 [pid 5476] close(3 [pid 5475] memfd_create("syzkaller", 0 [pid 5476] <... close resumed>) = 0 [pid 5469] <... openat resumed>) = 3 [pid 5476] memfd_create("syzkaller", 0 [pid 5475] <... memfd_create resumed>) = 3 [pid 5476] <... memfd_create resumed>) = 3 [pid 5475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5475] <... mmap resumed>) = 0x7f9e50600000 [pid 5469] clone(child_stack=NULL, flags=0 [pid 5463] exit(0 [pid 5476] <... mmap resumed>) = 0x7f9e50600000 [pid 5475] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5470] <... close resumed>) = 0 [pid 5463] <... exit resumed>) = ? ./strace-static-x86_64: Process 5477 attached [pid 5470] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5469] <... clone resumed>) = 5477 [pid 5463] +++ exited with 0 +++ [pid 5470] <... openat resumed>) = 3 [pid 5472] <... write resumed>) = 1048576 [pid 5472] munmap(0x7f9e50600000, 138412032 [pid 5470] clone(child_stack=NULL, flags=0 [pid 5469] ptrace(PTRACE_ATTACH, 5477 [pid 5466] exit(0 [pid 5464] exit(0 [pid 5476] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5472] <... munmap resumed>) = 0 [pid 5464] <... exit resumed>) = ? [pid 5466] <... exit resumed>) = ? ./strace-static-x86_64: Process 5478 attached [pid 5464] +++ exited with 0 +++ [pid 5476] <... write resumed>) = 1048576 [pid 5472] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5470] <... clone resumed>) = 5478 [pid 5469] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5466] +++ exited with 0 +++ [pid 5469] exit_group(0) = ? [pid 5470] ptrace(PTRACE_ATTACH, 5478) = -1 EPERM (Operation not permitted) [pid 5470] exit_group(0) = ? [pid 5472] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5472] close(3 [pid 5470] +++ exited with 0 +++ [pid 5469] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5476] munmap(0x7f9e50600000, 138412032 [pid 5475] <... write resumed>) = 1048576 [pid 5472] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5470, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5476] <... munmap resumed>) = 0 [pid 5475] munmap(0x7f9e50600000, 138412032 [pid 5472] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5476] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5472] clone(child_stack=NULL, flags=0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5476] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5475] <... munmap resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5479 attached ./strace-static-x86_64: Process 5480 attached [pid 5476] close(3 [pid 5475] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] set_robust_list(0x555566297660, 24 [pid 5476] <... close resumed>) = 0 [pid 5475] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5480 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5475] close(3 [pid 5472] <... clone resumed>) = 5479 ./strace-static-x86_64: Process 5481 attached [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] set_robust_list(0x555566297660, 24 [pid 5480] <... prctl resumed>) = 0 [pid 5472] ptrace(PTRACE_ATTACH, 5479 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5481 [pid 5481] <... set_robust_list resumed>) = 0 [pid 5480] setpgid(0, 0 [pid 5472] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5480] <... setpgid resumed>) = 0 [pid 5476] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5475] <... close resumed>) = 0 [pid 5472] exit_group(0 [pid 5481] <... prctl resumed>) = 0 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5472] <... exit_group resumed>) = ? [pid 5481] setpgid(0, 0 [pid 5476] <... openat resumed>) = 3 [pid 5475] <... openat resumed>) = 3 [pid 5481] <... setpgid resumed>) = 0 [pid 5480] <... openat resumed>) = 3 [pid 5476] clone(child_stack=NULL, flags=0 [pid 5475] clone(child_stack=NULL, flags=0 [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5483 attached ./strace-static-x86_64: Process 5482 attached ) = 3 [pid 5480] write(3, "1000", 4 [pid 5472] +++ exited with 0 +++ [pid 5480] <... write resumed>) = 4 [pid 5481] write(3, "1000", 4 [pid 5480] close(3 [pid 5481] <... write resumed>) = 4 [pid 5481] close(3 [pid 5480] <... close resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5472, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=0} --- [pid 5481] <... close resumed>) = 0 [pid 5476] <... clone resumed>) = 5482 [pid 5475] <... clone resumed>) = 5483 [pid 5481] memfd_create("syzkaller", 0 [pid 5480] memfd_create("syzkaller", 0 [pid 5476] ptrace(PTRACE_ATTACH, 5482 [pid 5475] ptrace(PTRACE_ATTACH, 5483 [pid 5481] <... memfd_create resumed>) = 3 [pid 5480] <... memfd_create resumed>) = 3 [pid 5476] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5476] exit_group(0 [pid 5475] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5481] <... mmap resumed>) = 0x7f9e50600000 [pid 5480] <... mmap resumed>) = 0x7f9e50600000 [pid 5476] <... exit_group resumed>) = ? [pid 5475] exit_group(0 [pid 5476] +++ exited with 0 +++ [pid 5475] <... exit_group resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5475] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5484 attached [pid 5481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5484 [pid 5484] set_robust_list(0x555566297660, 24 [pid 5471] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5484] <... set_robust_list resumed>) = 0 [pid 5471] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... restart_syscall resumed>) = 0 [pid 5484] <... prctl resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5484] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5485 attached [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5481] <... write resumed>) = 1048576 [pid 5480] <... write resumed>) = 1048576 [pid 5471] +++ exited with 0 +++ [pid 5485] set_robust_list(0x555566297660, 24 [pid 5484] <... openat resumed>) = 3 [pid 5481] munmap(0x7f9e50600000, 138412032 [pid 5480] munmap(0x7f9e50600000, 138412032 [pid 5474] exit(0 [pid 5473] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5485] <... set_robust_list resumed>) = 0 [pid 5484] write(3, "1000", 4 [pid 5481] <... munmap resumed>) = 0 [pid 5480] <... munmap resumed>) = 0 [pid 5474] <... exit resumed>) = ? [pid 5473] <... exit resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5485 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5484] <... write resumed>) = 4 [pid 5481] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5485] <... prctl resumed>) = 0 [pid 5485] setpgid(0, 0 [pid 5484] close(3 [pid 5481] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5474] +++ exited with 0 +++ [pid 5473] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5485] <... setpgid resumed>) = 0 [pid 5484] <... close resumed>) = 0 [pid 5481] close(3 [pid 5480] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] memfd_create("syzkaller", 0 [pid 5480] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5484] <... memfd_create resumed>) = 3 [pid 5480] close(3 [pid 5485] <... openat resumed>) = 3 [pid 5484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5486 attached [pid 5485] write(3, "1000", 4 [pid 5484] <... mmap resumed>) = 0x7f9e50600000 [pid 5481] <... close resumed>) = 0 [pid 5480] <... close resumed>) = 0 [pid 5486] set_robust_list(0x555566297660, 24 [pid 5485] <... write resumed>) = 4 [pid 5481] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5486] <... set_robust_list resumed>) = 0 [pid 5485] close(3 [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] <... close resumed>) = 0 [pid 5481] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5486 [pid 5486] <... prctl resumed>) = 0 [pid 5485] memfd_create("syzkaller", 0 [pid 5486] setpgid(0, 0) = 0 [pid 5485] <... memfd_create resumed>) = 3 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5481] clone(child_stack=NULL, flags=0 [pid 5480] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5486] <... openat resumed>) = 3 [pid 5484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5485] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5487 attached [pid 5480] <... openat resumed>) = 3 [pid 5486] write(3, "1000", 4) = 4 [pid 5486] close(3 [pid 5480] clone(child_stack=NULL, flags=0 [pid 5486] <... close resumed>) = 0 [pid 5486] memfd_create("syzkaller", 0 [pid 5481] <... clone resumed>) = 5487 ./strace-static-x86_64: Process 5488 attached [pid 5486] <... memfd_create resumed>) = 3 [pid 5484] <... write resumed>) = 1048576 [pid 5481] ptrace(PTRACE_ATTACH, 5487 [pid 5486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5480] <... clone resumed>) = 5488 [pid 5481] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5480] ptrace(PTRACE_ATTACH, 5488 [pid 5485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5481] exit_group(0 [pid 5480] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5486] <... mmap resumed>) = 0x7f9e50600000 [pid 5481] <... exit_group resumed>) = ? [pid 5486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5480] exit_group(0 [pid 5484] munmap(0x7f9e50600000, 138412032 [pid 5481] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5484] <... munmap resumed>) = 0 [pid 5480] <... exit_group resumed>) = ? [pid 5477] exit(0 [pid 5484] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5484] close(3 [pid 5480] +++ exited with 0 +++ [pid 5477] <... exit resumed>) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5478] exit(0) = ? [pid 5478] +++ exited with 0 +++ [pid 5477] +++ exited with 0 +++ [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5485] <... write resumed>) = 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5480, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5489 attached [pid 5489] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5489 ./strace-static-x86_64: Process 5490 attached [pid 5489] <... set_robust_list resumed>) = 0 [pid 5490] set_robust_list(0x555566297660, 24 [pid 5485] munmap(0x7f9e50600000, 138412032 [pid 5490] <... set_robust_list resumed>) = 0 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] <... munmap resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5490 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5484] <... close resumed>) = 0 [pid 5490] <... prctl resumed>) = 0 [pid 5489] <... prctl resumed>) = 0 [pid 5485] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5490] setpgid(0, 0 [pid 5489] setpgid(0, 0 [pid 5485] close(3 [pid 5484] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5490] <... setpgid resumed>) = 0 [pid 5489] <... setpgid resumed>) = 0 [pid 5486] <... write resumed>) = 1048576 [pid 5485] <... close resumed>) = 0 [pid 5484] <... openat resumed>) = 3 [pid 5484] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5491 attached [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5486] munmap(0x7f9e50600000, 138412032 [pid 5485] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5490] <... openat resumed>) = 3 [pid 5489] <... openat resumed>) = 3 [pid 5484] <... clone resumed>) = 5491 [pid 5479] exit(0 [pid 5490] write(3, "1000", 4 [pid 5489] write(3, "1000", 4 [pid 5486] <... munmap resumed>) = 0 [pid 5485] <... openat resumed>) = 3 [pid 5484] ptrace(PTRACE_ATTACH, 5491 [pid 5479] <... exit resumed>) = ? [pid 5490] <... write resumed>) = 4 [pid 5489] <... write resumed>) = 4 [pid 5486] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5485] clone(child_stack=NULL, flags=0 [pid 5484] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5492 attached [pid 5490] close(3 [pid 5489] close(3 [pid 5486] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5484] exit_group(0 [pid 5479] +++ exited with 0 +++ [pid 5490] <... close resumed>) = 0 [pid 5489] <... close resumed>) = 0 [pid 5489] memfd_create("syzkaller", 0 [pid 5486] close(3 [pid 5484] <... exit_group resumed>) = ? [pid 5490] memfd_create("syzkaller", 0) = 3 [pid 5489] <... memfd_create resumed>) = 3 [pid 5484] +++ exited with 0 +++ [pid 5490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5486] <... close resumed>) = 0 [pid 5489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5485] <... clone resumed>) = 5492 [pid 5486] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5485] ptrace(PTRACE_ATTACH, 5492 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5484, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5490] <... mmap resumed>) = 0x7f9e50600000 [pid 5489] <... mmap resumed>) = 0x7f9e50600000 [pid 5486] <... openat resumed>) = 3 [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5485] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5486] clone(child_stack=NULL, flags=0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5494 [pid 5490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5485] exit_group(0./strace-static-x86_64: Process 5494 attached ) = ? [pid 5483] exit(0 [pid 5494] set_robust_list(0x555566297660, 24) = 0 [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5486] <... clone resumed>) = 5493 [pid 5494] <... prctl resumed>) = 0 [pid 5486] ptrace(PTRACE_ATTACH, 5493 [pid 5485] +++ exited with 0 +++ ./strace-static-x86_64: Process 5493 attached [pid 5494] setpgid(0, 0 [pid 5486] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5483] <... exit resumed>) = ? [pid 5494] <... setpgid resumed>) = 0 [pid 5486] exit_group(0 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5486] <... exit_group resumed>) = ? [pid 5486] +++ exited with 0 +++ [pid 5482] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5494] <... openat resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5486, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5483] +++ exited with 0 +++ [pid 5494] write(3, "1000", 4 [pid 5482] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5494] <... write resumed>) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5494] close(3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5494] <... close resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5494] memfd_create("syzkaller", 0 [pid 5482] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5495 attached [pid 5494] <... memfd_create resumed>) = 3 [pid 5494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5495] set_robust_list(0x555566297660, 24 [pid 5494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5490] <... write resumed>) = 1048576 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5495] <... set_robust_list resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5495 ./strace-static-x86_64: Process 5496 attached [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] munmap(0x7f9e50600000, 138412032 [pid 5496] set_robust_list(0x555566297660, 24 [pid 5495] <... prctl resumed>) = 0 [pid 5495] setpgid(0, 0 [pid 5496] <... set_robust_list resumed>) = 0 [pid 5495] <... setpgid resumed>) = 0 [pid 5490] <... munmap resumed>) = 0 [pid 5489] <... write resumed>) = 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5496 [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] <... openat resumed>) = 3 [pid 5490] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5496] <... prctl resumed>) = 0 [pid 5495] write(3, "1000", 4 [pid 5489] munmap(0x7f9e50600000, 138412032 [pid 5496] setpgid(0, 0 [pid 5495] <... write resumed>) = 4 [pid 5490] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5489] <... munmap resumed>) = 0 [pid 5496] <... setpgid resumed>) = 0 [pid 5495] close(3 [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] <... close resumed>) = 0 [pid 5490] close(3 [pid 5489] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5494] <... write resumed>) = 1048576 [pid 5494] munmap(0x7f9e50600000, 138412032 [pid 5496] <... openat resumed>) = 3 [pid 5495] memfd_create("syzkaller", 0 [pid 5489] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5489] close(3 [pid 5494] <... munmap resumed>) = 0 [pid 5495] <... memfd_create resumed>) = 3 [pid 5496] write(3, "1000", 4 [pid 5495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5494] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5496] <... write resumed>) = 4 [pid 5495] <... mmap resumed>) = 0x7f9e50600000 [pid 5494] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5494] close(3 [pid 5496] close(3) = 0 [pid 5494] <... close resumed>) = 0 [pid 5494] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5496] memfd_create("syzkaller", 0 [pid 5495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5490] <... close resumed>) = 0 [pid 5489] <... close resumed>) = 0 [pid 5496] <... memfd_create resumed>) = 3 [pid 5494] <... openat resumed>) = 3 [pid 5490] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5489] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5487] exit(0 [pid 5490] <... openat resumed>) = 3 [pid 5489] <... openat resumed>) = 3 [pid 5487] <... exit resumed>) = ? [pid 5496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5490] clone(child_stack=NULL, flags=0 [pid 5496] <... mmap resumed>) = 0x7f9e50600000 [pid 5494] clone(child_stack=NULL, flags=0 [pid 5489] clone(child_stack=NULL, flags=0 [pid 5487] +++ exited with 0 +++ ./strace-static-x86_64: Process 5497 attached [pid 5490] <... clone resumed>) = 5498 [pid 5490] ptrace(PTRACE_ATTACH, 5498) = -1 EPERM (Operation not permitted) [pid 5490] exit_group(0 [pid 5489] <... clone resumed>) = 5497 [pid 5490] <... exit_group resumed>) = ? [pid 5489] ptrace(PTRACE_ATTACH, 5497./strace-static-x86_64: Process 5498 attached ) = -1 EPERM (Operation not permitted) [pid 5489] exit_group(0./strace-static-x86_64: Process 5499 attached ) = ? [pid 5494] <... clone resumed>) = 5499 [pid 5490] +++ exited with 0 +++ [pid 5489] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5490, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5494] ptrace(PTRACE_ATTACH, 5499 [pid 5496] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5495] <... write resumed>) = 1048576 [pid 5494] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5488] exit(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5495] munmap(0x7f9e50600000, 138412032 [pid 5494] exit_group(0 [pid 5488] <... exit resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5488] +++ exited with 0 +++ ./strace-static-x86_64: Process 5500 attached [pid 5494] <... exit_group resumed>) = ? [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5500] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5500 [pid 5500] <... set_robust_list resumed>) = 0 [pid 5500] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5501 attached ) = 0 [pid 5500] setpgid(0, 0) = 0 [pid 5501] set_robust_list(0x555566297660, 24 [pid 5496] <... write resumed>) = 1048576 [pid 5495] <... munmap resumed>) = 0 [pid 5494] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5501 [pid 5501] <... set_robust_list resumed>) = 0 [pid 5500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] munmap(0x7f9e50600000, 138412032 [pid 5495] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5494, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5501] <... prctl resumed>) = 0 [pid 5500] <... openat resumed>) = 3 [pid 5496] <... munmap resumed>) = 0 [pid 5495] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5501] setpgid(0, 0 [pid 5500] write(3, "1000", 4 [pid 5496] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5495] close(3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5501] <... setpgid resumed>) = 0 [pid 5500] <... write resumed>) = 4 [pid 5496] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5495] <... close resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5500] close(3 [pid 5496] close(3./strace-static-x86_64: Process 5502 attached [pid 5501] <... openat resumed>) = 3 [pid 5500] <... close resumed>) = 0 [pid 5502] set_robust_list(0x555566297660, 24 [pid 5500] memfd_create("syzkaller", 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5502 [pid 5501] write(3, "1000", 4 [pid 5500] <... memfd_create resumed>) = 3 [pid 5491] exit(0 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5501] <... write resumed>) = 4 [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5501] close(3 [pid 5500] <... mmap resumed>) = 0x7f9e50600000 [pid 5491] <... exit resumed>) = ? [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] <... close resumed>) = 0 [pid 5500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5496] <... close resumed>) = 0 [pid 5495] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5502] <... prctl resumed>) = 0 [pid 5501] memfd_create("syzkaller", 0 [pid 5492] exit(0 [pid 5502] setpgid(0, 0 [pid 5496] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5492] <... exit resumed>) = ? [pid 5501] <... memfd_create resumed>) = 3 [pid 5501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5495] <... openat resumed>) = 3 [pid 5502] <... setpgid resumed>) = 0 [pid 5501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5496] <... openat resumed>) = 3 [pid 5492] +++ exited with 0 +++ [pid 5491] +++ exited with 0 +++ [pid 5495] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5503 attached [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] clone(child_stack=NULL, flags=0 [pid 5495] <... clone resumed>) = 5503 [pid 5502] <... openat resumed>) = 3 [pid 5495] ptrace(PTRACE_ATTACH, 5503) = -1 EPERM (Operation not permitted) [pid 5495] exit_group(0) = ? [pid 5502] write(3, "1000", 4./strace-static-x86_64: Process 5504 attached ) = 4 [pid 5500] <... write resumed>) = 1048576 [pid 5495] +++ exited with 0 +++ [pid 5502] close(3) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5502] memfd_create("syzkaller", 0 [pid 5496] <... clone resumed>) = 5504 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5502] <... memfd_create resumed>) = 3 [pid 5501] <... write resumed>) = 1048576 [pid 5500] munmap(0x7f9e50600000, 138412032 [pid 5496] ptrace(PTRACE_ATTACH, 5504 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5501] munmap(0x7f9e50600000, 138412032 [pid 5500] <... munmap resumed>) = 0 [pid 5496] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5493] exit(0 [pid 5501] <... munmap resumed>) = 0 [pid 5493] <... exit resumed>) = ? [pid 5502] <... mmap resumed>) = 0x7f9e50600000 [pid 5496] exit_group(0 [pid 5493] +++ exited with 0 +++ ./strace-static-x86_64: Process 5505 attached [pid 5500] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5505] set_robust_list(0x555566297660, 24 [pid 5500] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5505] <... set_robust_list resumed>) = 0 [pid 5501] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5500] close(3 [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5496] <... exit_group resumed>) = ? [pid 5505] <... prctl resumed>) = 0 [pid 5505] setpgid(0, 0) = 0 [pid 5502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5501] close(3 [pid 5500] <... close resumed>) = 0 [pid 5496] +++ exited with 0 +++ [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5505 [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] <... close resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5505] <... openat resumed>) = 3 [pid 5500] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5505] write(3, "1000", 4 [pid 5500] <... openat resumed>) = 3 [pid 5505] <... write resumed>) = 4 [pid 5500] clone(child_stack=NULL, flags=0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5506 attached [pid 5505] close(3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5505] <... close resumed>) = 0 [pid 5500] <... clone resumed>) = 5506 [pid 5505] memfd_create("syzkaller", 0) = 3 [pid 5500] ptrace(PTRACE_ATTACH, 5506 [pid 5505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5500] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5505] <... mmap resumed>) = 0x7f9e50600000 [pid 5500] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5502] <... write resumed>) = 1048576 [pid 5501] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5500] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5507 [pid 5502] munmap(0x7f9e50600000, 138412032 [pid 5500] +++ exited with 0 +++ [pid 5502] <... munmap resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5500, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5502] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5501] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5507 attached [pid 5507] set_robust_list(0x555566297660, 24 [pid 5502] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5507] <... set_robust_list resumed>) = 0 [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5505] <... write resumed>) = 1048576 [pid 5502] close(3 [pid 5501] clone(child_stack=NULL, flags=0 [pid 5507] setpgid(0, 0) = 0 [pid 5505] munmap(0x7f9e50600000, 138412032 [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5505] <... munmap resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5508 attached [pid 5507] <... openat resumed>) = 3 [pid 5497] exit(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5507] write(3, "1000", 4 [pid 5505] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5501] <... clone resumed>) = 5508 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5507] <... write resumed>) = 4 [pid 5505] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5501] ptrace(PTRACE_ATTACH, 5508 [pid 5507] close(3 [pid 5505] close(3 [pid 5501] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5509 attached [pid 5507] <... close resumed>) = 0 [pid 5502] <... close resumed>) = 0 [pid 5497] <... exit resumed>) = ? [pid 5509] set_robust_list(0x555566297660, 24) = 0 [pid 5498] exit(0 [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5509] setpgid(0, 0 [pid 5498] <... exit resumed>) = ? [pid 5509] <... setpgid resumed>) = 0 [pid 5498] +++ exited with 0 +++ [pid 5499] exit(0 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] memfd_create("syzkaller", 0 [pid 5501] exit_group(0 [pid 5499] <... exit resumed>) = ? [pid 5497] +++ exited with 0 +++ [pid 5501] <... exit_group resumed>) = ? [pid 5507] <... memfd_create resumed>) = 3 [pid 5501] +++ exited with 0 +++ [pid 5499] +++ exited with 0 +++ [pid 5507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5507] <... mmap resumed>) = 0x7f9e50600000 [pid 5509] <... openat resumed>) = 3 [pid 5502] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5509 [pid 5509] write(3, "1000", 4) = 4 [pid 5509] close(3) = 0 [pid 5509] memfd_create("syzkaller", 0 [pid 5507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5505] <... close resumed>) = 0 [pid 5502] <... openat resumed>) = 3 [pid 5509] <... memfd_create resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5509] <... mmap resumed>) = 0x7f9e50600000 [pid 5502] clone(child_stack=NULL, flags=0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5505] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5511 attached ./strace-static-x86_64: Process 5510 attached [pid 5509] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5507] <... write resumed>) = 1048576 [pid 5505] <... openat resumed>) = 3 [pid 5510] set_robust_list(0x555566297660, 24 [pid 5507] munmap(0x7f9e50600000, 138412032 [pid 5510] <... set_robust_list resumed>) = 0 [pid 5507] <... munmap resumed>) = 0 [pid 5505] clone(child_stack=NULL, flags=0 [pid 5502] <... clone resumed>) = 5511 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5510 [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5510] setpgid(0, 0 [pid 5507] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5502] ptrace(PTRACE_ATTACH, 5511 [pid 5510] <... setpgid resumed>) = 0 [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5502] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5502] exit_group(0 [pid 5505] <... clone resumed>) = 5512 [pid 5502] <... exit_group resumed>) = ? [pid 5505] ptrace(PTRACE_ATTACH, 5512./strace-static-x86_64: Process 5512 attached [pid 5510] <... openat resumed>) = 3 [pid 5507] close(3 [pid 5505] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5510] write(3, "1000", 4) = 4 [pid 5510] close(3) = 0 [pid 5502] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5510] memfd_create("syzkaller", 0 [pid 5509] <... write resumed>) = 1048576 [pid 5507] <... close resumed>) = 0 [pid 5505] exit_group(0 [pid 5510] <... memfd_create resumed>) = 3 [pid 5509] munmap(0x7f9e50600000, 138412032 [pid 5505] <... exit_group resumed>) = ? [pid 5510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5509] <... munmap resumed>) = 0 [pid 5507] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5510] <... mmap resumed>) = 0x7f9e50600000 [pid 5505] +++ exited with 0 +++ [pid 5510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5509] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5507] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5505, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5503] exit(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5509] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5507] clone(child_stack=NULL, flags=0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5514 attached ./strace-static-x86_64: Process 5513 attached [pid 5509] close(3 [pid 5503] <... exit resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5513] set_robust_list(0x555566297660, 24 [pid 5509] <... close resumed>) = 0 [pid 5507] <... clone resumed>) = 5514 [pid 5503] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5513 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5507] ptrace(PTRACE_ATTACH, 5514) = -1 EPERM (Operation not permitted) [pid 5507] exit_group(0) = ? ./strace-static-x86_64: Process 5515 attached [pid 5513] <... set_robust_list resumed>) = 0 [pid 5509] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5507] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5507, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] <... openat resumed>) = 3 [pid 5504] exit(0 [pid 5515] set_robust_list(0x555566297660, 24 [pid 5513] <... prctl resumed>) = 0 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5509] clone(child_stack=NULL, flags=0 [pid 5504] <... exit resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5515 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5510] <... write resumed>) = 1048576 ./strace-static-x86_64: Process 5516 attached [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5513] setpgid(0, 0 [pid 5510] munmap(0x7f9e50600000, 138412032 [pid 5504] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5515] <... prctl resumed>) = 0 [pid 5513] <... setpgid resumed>) = 0 [pid 5510] <... munmap resumed>) = 0 [pid 5509] <... clone resumed>) = 5516 [pid 5515] setpgid(0, 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5515] <... setpgid resumed>) = 0 [pid 5509] ptrace(PTRACE_ATTACH, 5516 [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] <... openat resumed>) = 3 [pid 5510] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5509] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5517 attached [pid 5513] write(3, "1000", 4 [pid 5517] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5517 [pid 5517] <... set_robust_list resumed>) = 0 [pid 5513] <... write resumed>) = 4 [pid 5513] close(3 [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5515] <... openat resumed>) = 3 [pid 5513] <... close resumed>) = 0 [pid 5510] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5509] exit_group(0 [pid 5517] <... prctl resumed>) = 0 [pid 5515] write(3, "1000", 4 [pid 5510] close(3 [pid 5509] <... exit_group resumed>) = ? [pid 5517] setpgid(0, 0 [pid 5515] <... write resumed>) = 4 [pid 5513] memfd_create("syzkaller", 0 [pid 5517] <... setpgid resumed>) = 0 [pid 5513] <... memfd_create resumed>) = 3 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5517] write(3, "1000", 4) = 4 [pid 5517] close(3 [pid 5515] close(3 [pid 5510] <... close resumed>) = 0 [pid 5517] <... close resumed>) = 0 [pid 5515] <... close resumed>) = 0 [pid 5509] +++ exited with 0 +++ [pid 5517] memfd_create("syzkaller", 0 [pid 5515] memfd_create("syzkaller", 0 [pid 5510] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5506] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5509, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5515] <... memfd_create resumed>) = 3 [pid 5506] <... exit resumed>) = ? [pid 5517] <... memfd_create resumed>) = 3 [pid 5515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5510] <... openat resumed>) = 3 [pid 5506] +++ exited with 0 +++ [pid 5517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5515] <... mmap resumed>) = 0x7f9e50600000 [pid 5510] clone(child_stack=NULL, flags=0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5517] <... mmap resumed>) = 0x7f9e50600000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5519 attached ./strace-static-x86_64: Process 5518 attached [pid 5519] set_robust_list(0x555566297660, 24) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5519 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5519] setpgid(0, 0) = 0 [pid 5510] <... clone resumed>) = 5518 [pid 5510] ptrace(PTRACE_ATTACH, 5518 [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5510] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5519] <... openat resumed>) = 3 [pid 5510] exit_group(0 [pid 5519] write(3, "1000", 4 [pid 5510] <... exit_group resumed>) = ? [pid 5519] <... write resumed>) = 4 [pid 5519] close(3) = 0 [pid 5519] memfd_create("syzkaller", 0) = 3 [pid 5517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5510] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5510, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5508] exit(0 [pid 5517] <... write resumed>) = 1048576 [pid 5513] <... write resumed>) = 1048576 [pid 5508] <... exit resumed>) = ? [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5515] <... write resumed>) = 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5520 [pid 5508] +++ exited with 0 +++ ./strace-static-x86_64: Process 5520 attached [pid 5515] munmap(0x7f9e50600000, 138412032 [pid 5520] set_robust_list(0x555566297660, 24 [pid 5517] munmap(0x7f9e50600000, 138412032 [pid 5515] <... munmap resumed>) = 0 [pid 5513] munmap(0x7f9e50600000, 138412032 [pid 5520] <... set_robust_list resumed>) = 0 [pid 5517] <... munmap resumed>) = 0 [pid 5515] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5520] setpgid(0, 0 [pid 5515] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5513] <... munmap resumed>) = 0 [pid 5520] <... setpgid resumed>) = 0 [pid 5517] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5515] close(3 [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5520] <... openat resumed>) = 3 [pid 5519] <... write resumed>) = 1048576 [pid 5519] munmap(0x7f9e50600000, 138412032 [pid 5517] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5517] close(3 [pid 5520] write(3, "1000", 4 [pid 5519] <... munmap resumed>) = 0 [pid 5517] <... close resumed>) = 0 [pid 5520] <... write resumed>) = 4 [pid 5519] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5513] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5519] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5513] close(3 [pid 5519] close(3 [pid 5513] <... close resumed>) = 0 [pid 5520] close(3 [pid 5511] exit(0 [pid 5520] <... close resumed>) = 0 [pid 5511] <... exit resumed>) = ? [pid 5520] memfd_create("syzkaller", 0 [pid 5511] +++ exited with 0 +++ [pid 5520] <... memfd_create resumed>) = 3 [pid 5519] <... close resumed>) = 0 [pid 5519] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5512] exit(0 [pid 5520] <... mmap resumed>) = 0x7f9e50600000 [pid 5519] <... openat resumed>) = 3 [pid 5517] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5515] <... close resumed>) = 0 [pid 5513] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5512] <... exit resumed>) = ? [pid 5519] clone(child_stack=NULL, flags=0 [pid 5517] <... openat resumed>) = 3 [pid 5513] <... openat resumed>) = 3 [pid 5515] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5521 attached [pid 5520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5517] clone(child_stack=NULL, flags=0 [pid 5513] clone(child_stack=NULL, flags=0 [pid 5512] +++ exited with 0 +++ [pid 5519] <... clone resumed>) = 5521 [pid 5515] <... openat resumed>) = 3 [pid 5519] ptrace(PTRACE_ATTACH, 5521) = -1 EPERM (Operation not permitted) [pid 5519] exit_group(0) = ? ./strace-static-x86_64: Process 5523 attached ./strace-static-x86_64: Process 5522 attached [pid 5520] <... write resumed>) = 1048576 [pid 5515] clone(child_stack=NULL, flags=0 [pid 5520] munmap(0x7f9e50600000, 138412032 [pid 5517] <... clone resumed>) = 5523 [pid 5517] ptrace(PTRACE_ATTACH, 5523) = -1 EPERM (Operation not permitted) [pid 5520] <... munmap resumed>) = 0 [pid 5517] exit_group(0) = ? [pid 5517] +++ exited with 0 +++ [pid 5513] <... clone resumed>) = 5522 [pid 5513] ptrace(PTRACE_ATTACH, 5522 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5520] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5514] exit(0 [pid 5513] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5520] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5514] <... exit resumed>) = ? [pid 5513] exit_group(0) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5514] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5520] close(3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5524 attached [pid 5520] <... close resumed>) = 0 [pid 5519] +++ exited with 0 +++ [pid 5513] +++ exited with 0 +++ [pid 5515] <... clone resumed>) = 5524 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5515] ptrace(PTRACE_ATTACH, 5524./strace-static-x86_64: Process 5525 attached [pid 5520] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5515] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5525 [pid 5525] set_robust_list(0x555566297660, 24 [pid 5520] <... openat resumed>) = 3 [pid 5525] <... set_robust_list resumed>) = 0 [pid 5515] exit_group(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5515] <... exit_group resumed>) = ? [pid 5525] <... prctl resumed>) = 0 [pid 5520] clone(child_stack=NULL, flags=0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5526 attached [pid 5525] setpgid(0, 0 [pid 5515] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5525] <... setpgid resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5515, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5527 attached [pid 5527] set_robust_list(0x555566297660, 24 [pid 5525] write(3, "1000", 4 [pid 5520] <... clone resumed>) = 5526 [pid 5516] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5528 attached [pid 5527] <... set_robust_list resumed>) = 0 [pid 5525] <... write resumed>) = 4 [pid 5520] ptrace(PTRACE_ATTACH, 5526 [pid 5516] <... exit resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5527 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5525] close(3 [pid 5520] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5529 attached [pid 5528] set_robust_list(0x555566297660, 24 [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5525] <... close resumed>) = 0 [pid 5516] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5528 [pid 5529] set_robust_list(0x555566297660, 24 [pid 5528] <... set_robust_list resumed>) = 0 [pid 5527] <... prctl resumed>) = 0 [pid 5525] memfd_create("syzkaller", 0 [pid 5520] exit_group(0 [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5529] <... set_robust_list resumed>) = 0 [pid 5527] setpgid(0, 0 [pid 5520] <... exit_group resumed>) = ? [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] <... prctl resumed>) = 0 [pid 5527] <... setpgid resumed>) = 0 [pid 5520] +++ exited with 0 +++ [pid 5529] <... prctl resumed>) = 0 [pid 5529] setpgid(0, 0 [pid 5528] setpgid(0, 0 [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5525] <... memfd_create resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5520, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5529] <... setpgid resumed>) = 0 [pid 5528] <... setpgid resumed>) = 0 [pid 5527] <... openat resumed>) = 3 [pid 5525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5529 [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5527] write(3, "1000", 4 [pid 5525] <... mmap resumed>) = 0x7f9e50600000 [pid 5529] <... openat resumed>) = 3 [pid 5528] <... openat resumed>) = 3 [pid 5527] <... write resumed>) = 4 [pid 5529] write(3, "1000", 4 [pid 5528] write(3, "1000", 4 [pid 5527] close(3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5529] <... write resumed>) = 4 [pid 5528] <... write resumed>) = 4 [pid 5527] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5529] close(3 [pid 5528] close(3) = 0 [pid 5529] <... close resumed>) = 0 [pid 5529] memfd_create("syzkaller", 0 [pid 5528] memfd_create("syzkaller", 0 [pid 5527] memfd_create("syzkaller", 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5529] <... memfd_create resumed>) = 3 [pid 5527] <... memfd_create resumed>) = 3 [pid 5528] <... memfd_create resumed>) = 3 [pid 5529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5530 [pid 5529] <... mmap resumed>) = 0x7f9e50600000 [pid 5528] <... mmap resumed>) = 0x7f9e50600000 [pid 5527] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5530 attached [pid 5530] set_robust_list(0x555566297660, 24) = 0 [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5530] setpgid(0, 0) = 0 [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5530] write(3, "1000", 4) = 4 [pid 5518] exit(0 [pid 5530] close(3 [pid 5518] <... exit resumed>) = ? [pid 5530] <... close resumed>) = 0 [pid 5518] +++ exited with 0 +++ [pid 5530] memfd_create("syzkaller", 0) = 3 [pid 5530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5525] <... write resumed>) = 1048576 [pid 5525] munmap(0x7f9e50600000, 138412032) = 0 [pid 5525] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5525] close(3 [pid 5529] <... write resumed>) = 1048576 [pid 5528] <... write resumed>) = 1048576 [pid 5525] <... close resumed>) = 0 [pid 5529] munmap(0x7f9e50600000, 138412032 [pid 5528] munmap(0x7f9e50600000, 138412032 [pid 5529] <... munmap resumed>) = 0 [pid 5528] <... munmap resumed>) = 0 [pid 5529] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5528] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5527] <... write resumed>) = 1048576 [pid 5529] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5528] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5527] munmap(0x7f9e50600000, 138412032 [pid 5530] <... write resumed>) = 1048576 [pid 5529] close(3 [pid 5528] close(3 [pid 5527] <... munmap resumed>) = 0 [pid 5525] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5530] munmap(0x7f9e50600000, 138412032 [pid 5525] <... openat resumed>) = 3 [pid 5530] <... munmap resumed>) = 0 [pid 5527] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5525] clone(child_stack=NULL, flags=0 [pid 5527] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5527] close(3./strace-static-x86_64: Process 5531 attached [pid 5530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5530] close(3 [pid 5525] <... clone resumed>) = 5531 [pid 5525] ptrace(PTRACE_ATTACH, 5531) = -1 EPERM (Operation not permitted) [pid 5529] <... close resumed>) = 0 [pid 5525] exit_group(0 [pid 5521] exit(0 [pid 5529] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5528] <... close resumed>) = 0 [pid 5525] <... exit_group resumed>) = ? [pid 5521] <... exit resumed>) = ? [pid 5530] <... close resumed>) = 0 [pid 5529] <... openat resumed>) = 3 [pid 5528] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5527] <... close resumed>) = 0 [pid 5525] +++ exited with 0 +++ [pid 5529] clone(child_stack=NULL, flags=0 [pid 5528] <... openat resumed>) = 3 [pid 5527] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5525, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5532 attached [pid 5530] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5528] clone(child_stack=NULL, flags=0 [pid 5527] <... openat resumed>) = 3 [pid 5521] +++ exited with 0 +++ [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5523] exit(0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5523] <... exit resumed>) = ? ./strace-static-x86_64: Process 5533 attached [pid 5530] <... openat resumed>) = 3 [pid 5529] <... clone resumed>) = 5532 [pid 5527] clone(child_stack=NULL, flags=0 [pid 5524] exit(0 [pid 5523] +++ exited with 0 +++ [pid 5522] exit(0 [pid 5530] clone(child_stack=NULL, flags=0 [pid 5529] ptrace(PTRACE_ATTACH, 5532 [pid 5524] <... exit resumed>) = ? [pid 5522] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5535 attached ./strace-static-x86_64: Process 5534 attached [pid 5529] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5528] <... clone resumed>) = 5533 [pid 5524] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5529] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5536 attached [pid 5529] <... exit_group resumed>) = ? [pid 5528] ptrace(PTRACE_ATTACH, 5533 [pid 5527] <... clone resumed>) = 5534 [pid 5536] set_robust_list(0x555566297660, 24 [pid 5530] <... clone resumed>) = 5535 [pid 5522] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5536 [pid 5536] <... set_robust_list resumed>) = 0 [pid 5530] ptrace(PTRACE_ATTACH, 5535 [pid 5529] +++ exited with 0 +++ [pid 5528] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5527] ptrace(PTRACE_ATTACH, 5534 [pid 5526] exit(0 [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5530] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5528] exit_group(0 [pid 5527] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5526] <... exit resumed>) = ? [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5536] <... prctl resumed>) = 0 [pid 5530] exit_group(0 [pid 5528] <... exit_group resumed>) = ? [pid 5527] exit_group(0 [pid 5526] +++ exited with 0 +++ [pid 5536] setpgid(0, 0 [pid 5530] <... exit_group resumed>) = ? [pid 5536] <... setpgid resumed>) = 0 [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5530] +++ exited with 0 +++ [pid 5528] +++ exited with 0 +++ [pid 5527] <... exit_group resumed>) = ? [pid 5536] <... openat resumed>) = 3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5536] write(3, "1000", 4 [pid 5527] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5530, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5537 attached [pid 5536] <... write resumed>) = 4 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5527, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5537] set_robust_list(0x555566297660, 24 [pid 5536] close(3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5537 [pid 5537] <... set_robust_list resumed>) = 0 [pid 5536] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5536] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5537] <... prctl resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5537] setpgid(0, 0 [pid 5536] <... memfd_create resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5537] <... setpgid resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5538 attached [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5536] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5538 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5538] set_robust_list(0x555566297660, 24) = 0 [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5538] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5539 attached [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5537] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5540 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5539 [pid 5539] set_robust_list(0x555566297660, 24 [pid 5538] <... openat resumed>) = 3 [pid 5537] write(3, "1000", 4./strace-static-x86_64: Process 5540 attached [pid 5539] <... set_robust_list resumed>) = 0 [pid 5538] write(3, "1000", 4 [pid 5537] <... write resumed>) = 4 [pid 5536] <... write resumed>) = 1048576 [pid 5540] set_robust_list(0x555566297660, 24 [pid 5538] <... write resumed>) = 4 [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5537] close(3 [pid 5539] <... prctl resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5540] <... set_robust_list resumed>) = 0 [pid 5539] setpgid(0, 0 [pid 5538] close(3 [pid 5537] memfd_create("syzkaller", 0 [pid 5539] <... setpgid resumed>) = 0 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5538] <... close resumed>) = 0 [pid 5537] <... memfd_create resumed>) = 3 [pid 5539] <... openat resumed>) = 3 [pid 5538] memfd_create("syzkaller", 0 [pid 5537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5539] write(3, "1000", 4) = 4 [pid 5538] <... memfd_create resumed>) = 3 [pid 5537] <... mmap resumed>) = 0x7f9e50600000 [pid 5540] <... prctl resumed>) = 0 [pid 5539] close(3 [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5540] setpgid(0, 0 [pid 5538] <... mmap resumed>) = 0x7f9e50600000 [pid 5540] <... setpgid resumed>) = 0 [pid 5539] <... close resumed>) = 0 [pid 5538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5539] memfd_create("syzkaller", 0 [pid 5540] <... openat resumed>) = 3 [pid 5539] <... memfd_create resumed>) = 3 [pid 5536] munmap(0x7f9e50600000, 138412032 [pid 5539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5540] write(3, "1000", 4 [pid 5539] <... mmap resumed>) = 0x7f9e50600000 [pid 5536] <... munmap resumed>) = 0 [pid 5540] <... write resumed>) = 4 [pid 5540] close(3 [pid 5536] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5540] <... close resumed>) = 0 [pid 5536] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5540] memfd_create("syzkaller", 0 [pid 5536] close(3 [pid 5540] <... memfd_create resumed>) = 3 [pid 5540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5537] <... write resumed>) = 1048576 [pid 5537] munmap(0x7f9e50600000, 138412032 [pid 5539] <... write resumed>) = 1048576 [pid 5538] <... write resumed>) = 1048576 [pid 5539] munmap(0x7f9e50600000, 138412032 [pid 5537] <... munmap resumed>) = 0 [pid 5536] <... close resumed>) = 0 [pid 5537] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5536] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5539] <... munmap resumed>) = 0 [pid 5537] close(3 [pid 5539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5536] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5541 attached [pid 5539] close(3 [pid 5540] <... write resumed>) = 1048576 [pid 5539] <... close resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5536] <... clone resumed>) = 5541 [pid 5539] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5537] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5539] <... openat resumed>) = 3 [pid 5536] ptrace(PTRACE_ATTACH, 5541 [pid 5539] clone(child_stack=NULL, flags=0 [pid 5537] <... openat resumed>) = 3 [pid 5536] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5537] clone(child_stack=NULL, flags=0 [pid 5536] exit_group(0) = ? [pid 5536] +++ exited with 0 +++ ./strace-static-x86_64: Process 5542 attached [pid 5537] <... clone resumed>) = 5542 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5536, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5539] <... clone resumed>) = 5543 [pid 5537] ptrace(PTRACE_ATTACH, 5542 [pid 5539] ptrace(PTRACE_ATTACH, 5543 [pid 5537] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5539] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5539] exit_group(0 [pid 5537] exit_group(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5543 attached [pid 5539] <... exit_group resumed>) = ? [pid 5538] munmap(0x7f9e50600000, 138412032 [pid 5537] <... exit_group resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5539] +++ exited with 0 +++ [pid 5538] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5544 attached [pid 5538] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5537] +++ exited with 0 +++ [pid 5544] set_robust_list(0x555566297660, 24 [pid 5538] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5544 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5537, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5539, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5544] <... set_robust_list resumed>) = 0 [pid 5538] close(3 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5531] exit(0 [pid 5544] setpgid(0, 0 [pid 5531] <... exit resumed>) = ? [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5544] <... setpgid resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5545 attached [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5531] +++ exited with 0 +++ [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5545] set_robust_list(0x555566297660, 24) = 0 [pid 5544] <... openat resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] write(3, "1000", 4 [pid 5538] <... close resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... write resumed>) = 4 [pid 5538] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5545 [pid 5545] setpgid(0, 0 [pid 5540] munmap(0x7f9e50600000, 138412032 [pid 5544] close(3 [pid 5538] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5546 attached [pid 5545] <... setpgid resumed>) = 0 [pid 5540] <... munmap resumed>) = 0 [pid 5546] set_robust_list(0x555566297660, 24 [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5544] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5546 [pid 5546] <... set_robust_list resumed>) = 0 [pid 5544] memfd_create("syzkaller", 0 [pid 5540] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5538] clone(child_stack=NULL, flags=0 [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] <... openat resumed>) = 3 [pid 5544] <... memfd_create resumed>) = 3 [pid 5540] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5547 attached [pid 5546] <... prctl resumed>) = 0 [pid 5545] write(3, "1000", 4 [pid 5544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5540] close(3 [pid 5546] setpgid(0, 0 [pid 5545] <... write resumed>) = 4 [pid 5544] <... mmap resumed>) = 0x7f9e50600000 [pid 5540] <... close resumed>) = 0 [pid 5546] <... setpgid resumed>) = 0 [pid 5545] close(3 [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5538] <... clone resumed>) = 5547 [pid 5538] ptrace(PTRACE_ATTACH, 5547) = -1 EPERM (Operation not permitted) [pid 5538] exit_group(0) = ? [pid 5538] +++ exited with 0 +++ [pid 5540] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5546] <... openat resumed>) = 3 [pid 5545] <... close resumed>) = 0 [pid 5544] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5546] write(3, "1000", 4 [pid 5535] exit(0 [pid 5534] exit(0 [pid 5532] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5538, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5546] <... write resumed>) = 4 [pid 5540] <... openat resumed>) = 3 [pid 5535] <... exit resumed>) = ? [pid 5534] <... exit resumed>) = ? [pid 5532] <... exit resumed>) = ? [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5546] close(3 [pid 5535] +++ exited with 0 +++ [pid 5534] +++ exited with 0 +++ [pid 5532] +++ exited with 0 +++ [pid 5089] <... restart_syscall resumed>) = 0 [pid 5546] <... close resumed>) = 0 [pid 5546] memfd_create("syzkaller", 0 [pid 5545] memfd_create("syzkaller", 0 [pid 5540] clone(child_stack=NULL, flags=0 [pid 5533] exit(0 [pid 5546] <... memfd_create resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5533] <... exit resumed>) = ? ./strace-static-x86_64: Process 5548 attached [pid 5545] <... memfd_create resumed>) = 3 [pid 5544] <... write resumed>) = 1048576 [pid 5540] <... clone resumed>) = 5548 [pid 5533] +++ exited with 0 +++ [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5549 attached [pid 5545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5544] munmap(0x7f9e50600000, 138412032 [pid 5540] ptrace(PTRACE_ATTACH, 5548 [pid 5544] <... munmap resumed>) = 0 [pid 5540] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5549 [pid 5549] set_robust_list(0x555566297660, 24 [pid 5540] exit_group(0 [pid 5544] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5540] <... exit_group resumed>) = ? [pid 5549] <... set_robust_list resumed>) = 0 [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5549] setpgid(0, 0 [pid 5544] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5544] close(3 [pid 5549] <... setpgid resumed>) = 0 [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5549] write(3, "1000", 4) = 4 [pid 5549] close(3) = 0 [pid 5549] memfd_create("syzkaller", 0) = 3 [pid 5549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5545] <... write resumed>) = 1048576 [pid 5544] <... close resumed>) = 0 [pid 5540] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5540, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5546] <... write resumed>) = 1048576 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5546] munmap(0x7f9e50600000, 138412032 [pid 5545] munmap(0x7f9e50600000, 138412032 [pid 5544] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5545] <... munmap resumed>) = 0 [pid 5544] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5546] <... munmap resumed>) = 0 [pid 5546] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5546] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5546] close(3./strace-static-x86_64: Process 5550 attached [pid 5549] <... write resumed>) = 1048576 [pid 5545] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5544] clone(child_stack=NULL, flags=0 [pid 5549] munmap(0x7f9e50600000, 138412032) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5550 [pid 5545] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5550] set_robust_list(0x555566297660, 24 [pid 5549] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5551 attached [pid 5550] <... set_robust_list resumed>) = 0 [pid 5546] <... close resumed>) = 0 [pid 5545] close(3 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5549] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5546] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5544] <... clone resumed>) = 5551 [pid 5541] exit(0 [pid 5549] close(3 [pid 5544] ptrace(PTRACE_ATTACH, 5551 [pid 5541] <... exit resumed>) = ? [pid 5550] <... prctl resumed>) = 0 [pid 5549] <... close resumed>) = 0 [pid 5546] <... openat resumed>) = 3 [pid 5545] <... close resumed>) = 0 [pid 5544] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5550] setpgid(0, 0 [pid 5549] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5544] exit_group(0 [pid 5542] exit(0 [pid 5550] <... setpgid resumed>) = 0 [pid 5546] clone(child_stack=NULL, flags=0 [pid 5545] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5542] <... exit resumed>) = ? [pid 5541] +++ exited with 0 +++ ./strace-static-x86_64: Process 5552 attached [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5549] <... openat resumed>) = 3 [pid 5545] <... openat resumed>) = 3 [pid 5544] <... exit_group resumed>) = ? [pid 5542] +++ exited with 0 +++ [pid 5550] <... openat resumed>) = 3 [pid 5549] clone(child_stack=NULL, flags=0 [pid 5546] <... clone resumed>) = 5552 [pid 5545] clone(child_stack=NULL, flags=0 [pid 5543] exit(0) = ? ./strace-static-x86_64: Process 5554 attached [pid 5550] write(3, "1000", 4 [pid 5549] <... clone resumed>) = 5554 [pid 5546] ptrace(PTRACE_ATTACH, 5552 [pid 5544] +++ exited with 0 +++ [pid 5543] +++ exited with 0 +++ [pid 5550] <... write resumed>) = 4 [pid 5546] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5553 attached [pid 5550] close(3 [pid 5549] ptrace(PTRACE_ATTACH, 5554 [pid 5546] exit_group(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5550] <... close resumed>) = 0 [pid 5549] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5546] <... exit_group resumed>) = ? [pid 5545] <... clone resumed>) = 5553 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5550] memfd_create("syzkaller", 0 [pid 5549] exit_group(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5545] ptrace(PTRACE_ATTACH, 5553 [pid 5550] <... memfd_create resumed>) = 3 [pid 5549] <... exit_group resumed>) = ? [pid 5545] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5555 attached [pid 5550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5549] +++ exited with 0 +++ [pid 5546] +++ exited with 0 +++ [pid 5545] exit_group(0 [pid 5555] set_robust_list(0x555566297660, 24 [pid 5550] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5555 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5549, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5545] <... exit_group resumed>) = ? [pid 5555] <... set_robust_list resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5546, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5555] <... prctl resumed>) = 0 [pid 5555] setpgid(0, 0) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5555] <... openat resumed>) = 3 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5555] write(3, "1000", 4 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5555] <... write resumed>) = 4 ./strace-static-x86_64: Process 5556 attached [pid 5555] close(3 [pid 5556] set_robust_list(0x555566297660, 24 [pid 5555] <... close resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5556 [pid 5556] <... set_robust_list resumed>) = 0 [pid 5555] memfd_create("syzkaller", 0 [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] +++ exited with 0 +++ [pid 5555] <... memfd_create resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5557 attached [pid 5556] <... prctl resumed>) = 0 [pid 5555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5547] exit(0 [pid 5557] set_robust_list(0x555566297660, 24 [pid 5556] setpgid(0, 0 [pid 5555] <... mmap resumed>) = 0x7f9e50600000 [pid 5547] <... exit resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5557 [pid 5557] <... set_robust_list resumed>) = 0 [pid 5556] <... setpgid resumed>) = 0 [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5557] <... prctl resumed>) = 0 [pid 5547] +++ exited with 0 +++ [pid 5557] setpgid(0, 0 [pid 5556] <... openat resumed>) = 3 [pid 5556] write(3, "1000", 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5557] <... setpgid resumed>) = 0 [pid 5556] <... write resumed>) = 4 [pid 5556] close(3 [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] <... close resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5556] memfd_create("syzkaller", 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5558 attached [pid 5558] set_robust_list(0x555566297660, 24 [pid 5557] <... openat resumed>) = 3 [pid 5555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5558 [pid 5557] write(3, "1000", 4 [pid 5558] <... set_robust_list resumed>) = 0 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... write resumed>) = 4 [pid 5556] <... memfd_create resumed>) = 3 [pid 5558] <... prctl resumed>) = 0 [pid 5558] setpgid(0, 0) = 0 [pid 5557] close(3 [pid 5556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] <... close resumed>) = 0 [pid 5556] <... mmap resumed>) = 0x7f9e50600000 [pid 5558] <... openat resumed>) = 3 [pid 5558] write(3, "1000", 4 [pid 5557] memfd_create("syzkaller", 0 [pid 5550] <... write resumed>) = 1048576 [pid 5558] <... write resumed>) = 4 [pid 5556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5558] close(3 [pid 5557] <... memfd_create resumed>) = 3 [pid 5555] <... write resumed>) = 1048576 [pid 5550] munmap(0x7f9e50600000, 138412032 [pid 5558] <... close resumed>) = 0 [pid 5558] memfd_create("syzkaller", 0 [pid 5557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5550] <... munmap resumed>) = 0 [pid 5557] <... mmap resumed>) = 0x7f9e50600000 [pid 5555] munmap(0x7f9e50600000, 138412032 [pid 5548] exit(0 [pid 5558] <... memfd_create resumed>) = 3 [pid 5555] <... munmap resumed>) = 0 [pid 5548] <... exit resumed>) = ? [pid 5558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5550] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5558] <... mmap resumed>) = 0x7f9e50600000 [pid 5550] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5548] +++ exited with 0 +++ [pid 5558] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5555] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5550] close(3 [pid 5556] <... write resumed>) = 1048576 [pid 5556] munmap(0x7f9e50600000, 138412032 [pid 5555] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5555] close(3 [pid 5556] <... munmap resumed>) = 0 [pid 5550] <... close resumed>) = 0 [pid 5557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5556] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5550] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5558] <... write resumed>) = 1048576 [pid 5557] <... write resumed>) = 1048576 [pid 5556] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5555] <... close resumed>) = 0 [pid 5550] <... openat resumed>) = 3 [pid 5558] munmap(0x7f9e50600000, 138412032 [pid 5557] munmap(0x7f9e50600000, 138412032 [pid 5556] close(3 [pid 5555] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5550] clone(child_stack=NULL, flags=0 [pid 5558] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5559 attached [pid 5558] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5557] <... munmap resumed>) = 0 [pid 5556] <... close resumed>) = 0 [pid 5555] <... openat resumed>) = 3 [pid 5550] <... clone resumed>) = 5559 [pid 5558] close(3 [pid 5557] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5550] ptrace(PTRACE_ATTACH, 5559 [pid 5557] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5556] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5555] clone(child_stack=NULL, flags=0 [pid 5550] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5556] <... openat resumed>) = 3 [pid 5557] close(3 [pid 5550] exit_group(0) = ? [pid 5556] clone(child_stack=NULL, flags=0 [pid 5555] <... clone resumed>) = 5560 [pid 5555] ptrace(PTRACE_ATTACH, 5560./strace-static-x86_64: Process 5560 attached ) = -1 EPERM (Operation not permitted) [pid 5555] exit_group(0 [pid 5550] +++ exited with 0 +++ [pid 5555] <... exit_group resumed>) = ? [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5550, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5561 attached [pid 5558] <... close resumed>) = 0 [pid 5558] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5557] <... close resumed>) = 0 [pid 5556] <... clone resumed>) = 5561 [pid 5555] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5558] <... openat resumed>) = 3 [pid 5557] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5556] ptrace(PTRACE_ATTACH, 5561 [pid 5558] clone(child_stack=NULL, flags=0 [pid 5557] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5557] clone(child_stack=NULL, flags=0 [pid 5556] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5555, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5562 attached ./strace-static-x86_64: Process 5563 attached [pid 5556] exit_group(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5551] exit(0./strace-static-x86_64: Process 5564 attached [pid 5563] set_robust_list(0x555566297660, 24 [pid 5556] <... exit_group resumed>) = ? [pid 5563] <... set_robust_list resumed>) = 0 [pid 5558] <... clone resumed>) = 5562 [pid 5557] <... clone resumed>) = 5564 [pid 5551] <... exit resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5563 ./strace-static-x86_64: Process 5565 attached [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] +++ exited with 0 +++ [pid 5565] set_robust_list(0x555566297660, 24 [pid 5563] <... prctl resumed>) = 0 [pid 5558] ptrace(PTRACE_ATTACH, 5562 [pid 5557] ptrace(PTRACE_ATTACH, 5564 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5565 [pid 5565] <... set_robust_list resumed>) = 0 [pid 5563] setpgid(0, 0 [pid 5558] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] <... setpgid resumed>) = 0 [pid 5557] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5556, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5565] <... prctl resumed>) = 0 [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5558] exit_group(0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5565] setpgid(0, 0 [pid 5557] exit_group(0 [pid 5565] <... setpgid resumed>) = 0 [pid 5558] <... exit_group resumed>) = ? [pid 5557] <... exit_group resumed>) = ? [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5565] <... openat resumed>) = 3 [pid 5565] write(3, "1000", 4) = 4 [pid 5565] close(3) = 0 ./strace-static-x86_64: Process 5566 attached [pid 5563] <... openat resumed>) = 3 [pid 5558] +++ exited with 0 +++ [pid 5557] +++ exited with 0 +++ [pid 5551] +++ exited with 0 +++ [pid 5553] exit(0 [pid 5554] exit(0 [pid 5552] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5558, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5566] set_robust_list(0x555566297660, 24 [pid 5563] write(3, "1000", 4 [pid 5553] <... exit resumed>) = ? [pid 5554] <... exit resumed>) = ? [pid 5552] <... exit resumed>) = ? [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5566 [pid 5566] <... set_robust_list resumed>) = 0 [pid 5565] memfd_create("syzkaller", 0 [pid 5563] <... write resumed>) = 4 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] close(3 [pid 5565] <... memfd_create resumed>) = 3 [pid 5554] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5566] <... prctl resumed>) = 0 [pid 5565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5563] <... close resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5566] setpgid(0, 0 [pid 5565] <... mmap resumed>) = 0x7f9e50600000 [pid 5563] memfd_create("syzkaller", 0 [pid 5553] +++ exited with 0 +++ [pid 5552] +++ exited with 0 +++ [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5567 attached [pid 5566] <... setpgid resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5567] set_robust_list(0x555566297660, 24 [pid 5563] <... memfd_create resumed>) = 3 [pid 5567] <... set_robust_list resumed>) = 0 [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5567 [pid 5567] setpgid(0, 0 [pid 5566] <... openat resumed>) = 3 [pid 5563] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5568 attached [pid 5567] <... setpgid resumed>) = 0 [pid 5566] write(3, "1000", 4 [pid 5568] set_robust_list(0x555566297660, 24 [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5566] <... write resumed>) = 4 [pid 5568] <... set_robust_list resumed>) = 0 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5566] close(3) = 0 [pid 5567] <... openat resumed>) = 3 [pid 5566] memfd_create("syzkaller", 0 [pid 5568] <... prctl resumed>) = 0 [pid 5568] setpgid(0, 0 [pid 5567] write(3, "1000", 4 [pid 5566] <... memfd_create resumed>) = 3 [pid 5568] <... setpgid resumed>) = 0 [pid 5567] <... write resumed>) = 4 [pid 5566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5567] close(3 [pid 5566] <... mmap resumed>) = 0x7f9e50600000 [pid 5568] <... openat resumed>) = 3 [pid 5567] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5568 [pid 5568] write(3, "1000", 4) = 4 [pid 5567] memfd_create("syzkaller", 0 [pid 5568] close(3 [pid 5567] <... memfd_create resumed>) = 3 [pid 5568] <... close resumed>) = 0 [pid 5567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5568] memfd_create("syzkaller", 0 [pid 5567] <... mmap resumed>) = 0x7f9e50600000 [pid 5568] <... memfd_create resumed>) = 3 [pid 5565] <... write resumed>) = 1048576 [pid 5565] munmap(0x7f9e50600000, 138412032 [pid 5566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5565] <... munmap resumed>) = 0 [pid 5565] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5565] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5568] <... mmap resumed>) = 0x7f9e50600000 [pid 5565] close(3 [pid 5563] <... write resumed>) = 1048576 [pid 5563] munmap(0x7f9e50600000, 138412032) = 0 [pid 5567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5563] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5563] close(3 [pid 5568] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5565] <... close resumed>) = 0 [pid 5563] <... close resumed>) = 0 [pid 5565] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5565] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5569 attached [pid 5567] <... write resumed>) = 1048576 [pid 5563] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5559] exit(0 [pid 5567] munmap(0x7f9e50600000, 138412032 [pid 5563] clone(child_stack=NULL, flags=0 [pid 5566] <... write resumed>) = 1048576 [pid 5565] <... clone resumed>) = 5569 [pid 5559] <... exit resumed>) = ? [pid 5567] <... munmap resumed>) = 0 [pid 5566] munmap(0x7f9e50600000, 138412032 [pid 5565] ptrace(PTRACE_ATTACH, 5569 [pid 5559] +++ exited with 0 +++ [pid 5565] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5567] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5566] <... munmap resumed>) = 0 [pid 5565] exit_group(0) = ? [pid 5566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5565] +++ exited with 0 +++ [pid 5567] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5566] close(3./strace-static-x86_64: Process 5570 attached [pid 5563] <... clone resumed>) = 5570 [pid 5563] ptrace(PTRACE_ATTACH, 5570 [pid 5568] <... write resumed>) = 1048576 [pid 5567] close(3 [pid 5566] <... close resumed>) = 0 [pid 5563] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5568] munmap(0x7f9e50600000, 138412032 [pid 5566] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5568] <... munmap resumed>) = 0 [pid 5563] exit_group(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5560] exit(0 [pid 5568] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5567] <... close resumed>) = 0 [pid 5566] <... openat resumed>) = 3 [pid 5563] <... exit_group resumed>) = ? [pid 5560] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5568] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5566] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5571 attached [pid 5567] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5563] +++ exited with 0 +++ [pid 5561] exit(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5568] close(3 [pid 5567] <... openat resumed>) = 3 [pid 5564] exit(0 [pid 5561] <... exit resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5563, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5567] clone(child_stack=NULL, flags=0 [pid 5566] <... clone resumed>) = 5571 [pid 5564] <... exit resumed>) = ? [pid 5562] exit(0 [pid 5561] +++ exited with 0 +++ [pid 5560] +++ exited with 0 +++ [pid 5566] ptrace(PTRACE_ATTACH, 5571 [pid 5564] +++ exited with 0 +++ [pid 5566] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5572 attached [pid 5566] exit_group(0 [pid 5562] <... exit resumed>) = ? [pid 5572] set_robust_list(0x555566297660, 24 [pid 5566] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5572 ./strace-static-x86_64: Process 5573 attached [pid 5572] <... set_robust_list resumed>) = 0 [pid 5567] <... clone resumed>) = 5573 [pid 5566] +++ exited with 0 +++ [pid 5562] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5567] ptrace(PTRACE_ATTACH, 5573 [pid 5572] <... prctl resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5566, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5567] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5567] exit_group(0 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5567] <... exit_group resumed>) = ? [pid 5572] setpgid(0, 0 [pid 5567] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] <... setpgid resumed>) = 0 [pid 5568] <... close resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5567, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5575 attached ./strace-static-x86_64: Process 5574 attached [pid 5575] set_robust_list(0x555566297660, 24 [pid 5574] set_robust_list(0x555566297660, 24 [pid 5572] <... openat resumed>) = 3 [pid 5568] <... openat resumed>) = 3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5575 [pid 5575] <... set_robust_list resumed>) = 0 [pid 5574] <... set_robust_list resumed>) = 0 [pid 5572] write(3, "1000", 4 [pid 5568] clone(child_stack=NULL, flags=0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5574 [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5575] <... prctl resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5575] setpgid(0, 0 [pid 5574] <... prctl resumed>) = 0 [pid 5572] <... write resumed>) = 4 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5576 attached [pid 5575] <... setpgid resumed>) = 0 [pid 5574] setpgid(0, 0 [pid 5572] close(3 [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] <... setpgid resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] <... close resumed>) = 0 [pid 5568] <... clone resumed>) = 5576 [pid 5572] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5577 attached [pid 5575] <... openat resumed>) = 3 [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] <... memfd_create resumed>) = 3 [pid 5568] ptrace(PTRACE_ATTACH, 5576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5577 [pid 5577] set_robust_list(0x555566297660, 24 [pid 5575] write(3, "1000", 4 [pid 5574] <... openat resumed>) = 3 [pid 5572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5568] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5577] <... set_robust_list resumed>) = 0 [pid 5575] <... write resumed>) = 4 [pid 5574] write(3, "1000", 4 [pid 5572] <... mmap resumed>) = 0x7f9e50600000 [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5575] close(3 [pid 5574] <... write resumed>) = 4 [pid 5568] exit_group(0 [pid 5577] <... prctl resumed>) = 0 [pid 5575] <... close resumed>) = 0 [pid 5574] close(3 [pid 5577] setpgid(0, 0 [pid 5575] memfd_create("syzkaller", 0 [pid 5574] <... close resumed>) = 0 [pid 5577] <... setpgid resumed>) = 0 [pid 5575] <... memfd_create resumed>) = 3 [pid 5574] memfd_create("syzkaller", 0 [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5568] <... exit_group resumed>) = ? [pid 5574] <... memfd_create resumed>) = 3 [pid 5577] <... openat resumed>) = 3 [pid 5577] write(3, "1000", 4) = 4 [pid 5577] close(3) = 0 [pid 5574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5568] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5568, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5577] memfd_create("syzkaller", 0 [pid 5574] <... mmap resumed>) = 0x7f9e50600000 [pid 5577] <... memfd_create resumed>) = 3 [pid 5577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5574] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5577] <... mmap resumed>) = 0x7f9e50600000 [pid 5577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5572] <... write resumed>) = 1048576 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5575] <... write resumed>) = 1048576 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] munmap(0x7f9e50600000, 138412032) = 0 ./strace-static-x86_64: Process 5578 attached [pid 5575] munmap(0x7f9e50600000, 138412032 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5578 [pid 5578] set_robust_list(0x555566297660, 24 [pid 5575] <... munmap resumed>) = 0 [pid 5572] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5578] <... set_robust_list resumed>) = 0 [pid 5572] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] close(3 [pid 5578] <... prctl resumed>) = 0 [pid 5578] setpgid(0, 0) = 0 [pid 5575] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5577] <... write resumed>) = 1048576 [pid 5575] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5574] <... write resumed>) = 1048576 [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5577] munmap(0x7f9e50600000, 138412032 [pid 5575] close(3 [pid 5572] <... close resumed>) = 0 [pid 5578] <... openat resumed>) = 3 [pid 5577] <... munmap resumed>) = 0 [pid 5574] munmap(0x7f9e50600000, 138412032 [pid 5572] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5574] <... munmap resumed>) = 0 [pid 5572] <... openat resumed>) = 3 [pid 5578] write(3, "1000", 4 [pid 5577] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5572] clone(child_stack=NULL, flags=0 [pid 5578] <... write resumed>) = 4 [pid 5577] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5574] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5578] close(3 [pid 5577] close(3 [pid 5574] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5578] <... close resumed>) = 0 ./strace-static-x86_64: Process 5579 attached [pid 5578] memfd_create("syzkaller", 0 [pid 5575] <... close resumed>) = 0 [pid 5574] close(3 [pid 5578] <... memfd_create resumed>) = 3 [pid 5578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5575] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5578] <... mmap resumed>) = 0x7f9e50600000 [pid 5577] <... close resumed>) = 0 [pid 5575] <... openat resumed>) = 3 [pid 5577] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5575] clone(child_stack=NULL, flags=0 [pid 5577] clone(child_stack=NULL, flags=0 [pid 5572] <... clone resumed>) = 5579 [pid 5572] ptrace(PTRACE_ATTACH, 5579 [pid 5569] exit(0./strace-static-x86_64: Process 5581 attached ./strace-static-x86_64: Process 5580 attached [pid 5574] <... close resumed>) = 0 [pid 5572] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5569] <... exit resumed>) = ? [pid 5577] <... clone resumed>) = 5581 [pid 5577] ptrace(PTRACE_ATTACH, 5581) = -1 EPERM (Operation not permitted) [pid 5575] <... clone resumed>) = 5580 [pid 5572] exit_group(0 [pid 5569] +++ exited with 0 +++ [pid 5577] exit_group(0 [pid 5575] ptrace(PTRACE_ATTACH, 5580 [pid 5572] <... exit_group resumed>) = ? [pid 5575] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5572] +++ exited with 0 +++ [pid 5575] exit_group(0 [pid 5577] <... exit_group resumed>) = ? [pid 5575] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5572, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5570] exit(0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5574] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5570] <... exit resumed>) = ? [pid 5093] <... restart_syscall resumed>) = 0 [pid 5574] <... openat resumed>) = 3 [pid 5574] clone(child_stack=NULL, flags=0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5578] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5575] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5577] +++ exited with 0 +++ [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5577, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] <... restart_syscall resumed>) = 0 [pid 5570] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5583 attached ./strace-static-x86_64: Process 5582 attached ) = 0 [pid 5583] set_robust_list(0x555566297660, 24 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5583] <... set_robust_list resumed>) = 0 [pid 5574] <... clone resumed>) = 5582 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] ptrace(PTRACE_ATTACH, 5582 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5584 attached [pid 5583] <... prctl resumed>) = 0 [pid 5574] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5583 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5584] set_robust_list(0x555566297660, 24 [pid 5583] setpgid(0, 0 [pid 5584] <... set_robust_list resumed>) = 0 [pid 5583] <... setpgid resumed>) = 0 [pid 5574] exit_group(0./strace-static-x86_64: Process 5585 attached [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] <... exit_group resumed>) = ? [pid 5584] <... prctl resumed>) = 0 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5584 [pid 5585] set_robust_list(0x555566297660, 24 [pid 5584] setpgid(0, 0 [pid 5585] <... set_robust_list resumed>) = 0 [pid 5584] <... setpgid resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5574, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] <... openat resumed>) = 3 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5585 [pid 5585] <... prctl resumed>) = 0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5585] setpgid(0, 0) = 0 [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5585] <... openat resumed>) = 3 [pid 5583] write(3, "1000", 4 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5583] <... write resumed>) = 4 [pid 5585] write(3, "1000", 4) = 4 [pid 5584] <... openat resumed>) = 3 [pid 5583] close(3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5585] close(3 [pid 5583] <... close resumed>) = 0 [pid 5585] <... close resumed>) = 0 [pid 5585] memfd_create("syzkaller", 0 [pid 5583] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5586 attached ) = 3 [pid 5585] <... memfd_create resumed>) = 3 [pid 5583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5583] <... mmap resumed>) = 0x7f9e50600000 [pid 5586] set_robust_list(0x555566297660, 24 [pid 5585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5584] write(3, "1000", 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5586 [pid 5571] exit(0) = ? [pid 5586] <... set_robust_list resumed>) = 0 [pid 5584] <... write resumed>) = 4 [pid 5578] <... write resumed>) = 1048576 [pid 5571] +++ exited with 0 +++ [pid 5584] close(3 [pid 5573] exit(0 [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] <... exit resumed>) = ? [pid 5584] <... close resumed>) = 0 [pid 5584] memfd_create("syzkaller", 0 [pid 5573] +++ exited with 0 +++ [pid 5584] <... memfd_create resumed>) = 3 [pid 5586] <... prctl resumed>) = 0 [pid 5578] munmap(0x7f9e50600000, 138412032 [pid 5586] setpgid(0, 0 [pid 5578] <... munmap resumed>) = 0 [pid 5586] <... setpgid resumed>) = 0 [pid 5584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5578] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5584] <... mmap resumed>) = 0x7f9e50600000 [pid 5578] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5578] close(3) = 0 [pid 5586] <... openat resumed>) = 3 [pid 5584] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5578] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5576] exit(0 [pid 5586] write(3, "1000", 4) = 4 [pid 5576] <... exit resumed>) = ? [pid 5576] +++ exited with 0 +++ [pid 5586] close(3) = 0 [pid 5586] memfd_create("syzkaller", 0 [pid 5578] <... openat resumed>) = 3 [pid 5586] <... memfd_create resumed>) = 3 [pid 5578] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5587 attached [pid 5586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5583] <... write resumed>) = 1048576 [pid 5583] munmap(0x7f9e50600000, 138412032 [pid 5586] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5585] <... write resumed>) = 1048576 [pid 5584] <... write resumed>) = 1048576 [pid 5578] <... clone resumed>) = 5587 [pid 5585] munmap(0x7f9e50600000, 138412032 [pid 5584] munmap(0x7f9e50600000, 138412032 [pid 5583] <... munmap resumed>) = 0 [pid 5578] ptrace(PTRACE_ATTACH, 5587 [pid 5585] <... munmap resumed>) = 0 [pid 5584] <... munmap resumed>) = 0 [pid 5578] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5578] exit_group(0 [pid 5585] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5586] <... write resumed>) = 1048576 [pid 5585] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5584] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5583] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5578] <... exit_group resumed>) = ? [pid 5586] munmap(0x7f9e50600000, 138412032 [pid 5585] close(3 [pid 5584] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5583] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5586] <... munmap resumed>) = 0 [pid 5584] close(3 [pid 5583] close(3 [pid 5578] +++ exited with 0 +++ [pid 5586] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5585] <... close resumed>) = 0 [pid 5584] <... close resumed>) = 0 [pid 5583] <... close resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5578, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5586] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5584] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5586] close(3 [pid 5585] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5583] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5584] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5584] clone(child_stack=NULL, flags=0 [pid 5583] <... openat resumed>) = 3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5585] <... openat resumed>) = 3 [pid 5583] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5590 attached ./strace-static-x86_64: Process 5589 attached ./strace-static-x86_64: Process 5588 attached [pid 5586] <... close resumed>) = 0 [pid 5585] clone(child_stack=NULL, flags=0 [pid 5588] set_robust_list(0x555566297660, 24 [pid 5586] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5584] <... clone resumed>) = 5589 [pid 5583] <... clone resumed>) = 5590 [pid 5579] exit(0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5588 [pid 5588] <... set_robust_list resumed>) = 0 [pid 5586] <... openat resumed>) = 3 [pid 5584] ptrace(PTRACE_ATTACH, 5589 [pid 5579] <... exit resumed>) = ? [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] ptrace(PTRACE_ATTACH, 5590./strace-static-x86_64: Process 5591 attached [pid 5586] clone(child_stack=NULL, flags=0 [pid 5588] <... prctl resumed>) = 0 [pid 5584] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5583] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5588] setpgid(0, 0) = 0 [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5584] exit_group(0 [pid 5579] +++ exited with 0 +++ [pid 5580] exit(0 [pid 5585] <... clone resumed>) = 5591 [pid 5580] <... exit resumed>) = ? [pid 5583] exit_group(0 [pid 5585] ptrace(PTRACE_ATTACH, 5591) = -1 EPERM (Operation not permitted) [pid 5585] exit_group(0) = ? [pid 5584] <... exit_group resumed>) = ? [pid 5583] <... exit_group resumed>) = ? [pid 5581] exit(0) = ? [pid 5588] <... openat resumed>) = 3 [pid 5588] write(3, "1000", 4 [pid 5580] +++ exited with 0 +++ ./strace-static-x86_64: Process 5592 attached [pid 5588] <... write resumed>) = 4 [pid 5585] +++ exited with 0 +++ [pid 5584] +++ exited with 0 +++ [pid 5588] close(3 [pid 5581] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5586] <... clone resumed>) = 5592 [pid 5583] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5588] <... close resumed>) = 0 [pid 5586] ptrace(PTRACE_ATTACH, 5592 [pid 5582] exit(0 [pid 5588] memfd_create("syzkaller", 0 [pid 5586] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5586] exit_group(0 [pid 5582] <... exit resumed>) = ? [pid 5588] <... memfd_create resumed>) = 3 [pid 5586] <... exit_group resumed>) = ? [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5586] +++ exited with 0 +++ [pid 5582] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5588] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5586, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5593 attached ) = -1 EBUSY (Device or resource busy) [pid 5593] set_robust_list(0x555566297660, 24 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5593 [pid 5593] <... set_robust_list resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5594 attached [pid 5593] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5595 attached [pid 5594] set_robust_list(0x555566297660, 24 [pid 5593] setpgid(0, 0 [pid 5594] <... set_robust_list resumed>) = 0 [pid 5593] <... setpgid resumed>) = 0 [pid 5595] set_robust_list(0x555566297660, 24 [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5594 [pid 5594] <... prctl resumed>) = 0 [pid 5595] <... set_robust_list resumed>) = 0 [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] setpgid(0, 0 [pid 5593] <... openat resumed>) = 3 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5595] <... prctl resumed>) = 0 [pid 5594] <... setpgid resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5595 [pid 5595] setpgid(0, 0 [pid 5593] write(3, "1000", 4 [pid 5595] <... setpgid resumed>) = 0 [pid 5593] <... write resumed>) = 4 [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] close(3) = 0 ./strace-static-x86_64: Process 5596 attached [pid 5595] <... openat resumed>) = 3 [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] memfd_create("syzkaller", 0 [pid 5588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5596] set_robust_list(0x555566297660, 24 [pid 5595] write(3, "1000", 4 [pid 5594] <... openat resumed>) = 3 [pid 5593] <... memfd_create resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5596 [pid 5595] <... write resumed>) = 4 [pid 5596] <... set_robust_list resumed>) = 0 [pid 5595] close(3 [pid 5593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] <... close resumed>) = 0 [pid 5594] write(3, "1000", 4 [pid 5593] <... mmap resumed>) = 0x7f9e50600000 [pid 5596] <... prctl resumed>) = 0 [pid 5595] memfd_create("syzkaller", 0 [pid 5596] setpgid(0, 0 [pid 5595] <... memfd_create resumed>) = 3 [pid 5594] <... write resumed>) = 4 [pid 5588] <... write resumed>) = 1048576 [pid 5596] <... setpgid resumed>) = 0 [pid 5595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5594] close(3 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5595] <... mmap resumed>) = 0x7f9e50600000 [pid 5594] <... close resumed>) = 0 [pid 5596] <... openat resumed>) = 3 [pid 5593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5588] munmap(0x7f9e50600000, 138412032 [pid 5596] write(3, "1000", 4 [pid 5594] memfd_create("syzkaller", 0 [pid 5588] <... munmap resumed>) = 0 [pid 5596] <... write resumed>) = 4 [pid 5594] <... memfd_create resumed>) = 3 [pid 5596] close(3 [pid 5595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5588] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5596] <... close resumed>) = 0 [pid 5594] <... mmap resumed>) = 0x7f9e50600000 [pid 5588] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5596] memfd_create("syzkaller", 0) = 3 [pid 5588] close(3 [pid 5596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5593] <... write resumed>) = 1048576 [pid 5593] munmap(0x7f9e50600000, 138412032 [pid 5596] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5595] <... write resumed>) = 1048576 [pid 5594] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5588] <... close resumed>) = 0 [pid 5595] munmap(0x7f9e50600000, 138412032 [pid 5593] <... munmap resumed>) = 0 [pid 5587] exit(0) = ? [pid 5588] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5595] <... munmap resumed>) = 0 [pid 5588] <... openat resumed>) = 3 [pid 5588] clone(child_stack=NULL, flags=0 [pid 5587] +++ exited with 0 +++ [pid 5595] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5596] <... write resumed>) = 1048576 [pid 5596] munmap(0x7f9e50600000, 138412032 [pid 5595] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5593] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5597 attached [pid 5596] <... munmap resumed>) = 0 [pid 5595] close(3 [pid 5594] <... write resumed>) = 1048576 [pid 5593] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5596] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5596] close(3 [pid 5595] <... close resumed>) = 0 [pid 5593] close(3 [pid 5588] <... clone resumed>) = 5597 [pid 5588] ptrace(PTRACE_ATTACH, 5597) = -1 EPERM (Operation not permitted) [pid 5588] exit_group(0) = ? [pid 5588] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5588, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5596] <... close resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5596] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5598 attached [pid 5596] <... openat resumed>) = 3 [pid 5595] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5594] munmap(0x7f9e50600000, 138412032 [pid 5598] set_robust_list(0x555566297660, 24 [pid 5596] clone(child_stack=NULL, flags=0 [pid 5593] <... close resumed>) = 0 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] <... munmap resumed>) = 0 [pid 5593] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5598] <... prctl resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5598 [pid 5598] setpgid(0, 0 [pid 5593] <... openat resumed>) = 3 [pid 5598] <... setpgid resumed>) = 0 [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5594] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5595] <... openat resumed>) = 3 [pid 5593] clone(child_stack=NULL, flags=0 [pid 5589] exit(0./strace-static-x86_64: Process 5599 attached [pid 5598] <... openat resumed>) = 3 [pid 5594] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5589] <... exit resumed>) = ? [pid 5590] exit(0./strace-static-x86_64: Process 5600 attached [pid 5598] write(3, "1000", 4 [pid 5595] clone(child_stack=NULL, flags=0 [pid 5594] close(3 [pid 5590] <... exit resumed>) = ? [pid 5589] +++ exited with 0 +++ [pid 5598] <... write resumed>) = 4 [pid 5598] close(3./strace-static-x86_64: Process 5601 attached ) = 0 [pid 5596] <... clone resumed>) = 5599 [pid 5593] <... clone resumed>) = 5600 [pid 5591] exit(0 [pid 5590] +++ exited with 0 +++ [pid 5598] memfd_create("syzkaller", 0 [pid 5593] ptrace(PTRACE_ATTACH, 5600 [pid 5596] ptrace(PTRACE_ATTACH, 5599 [pid 5591] <... exit resumed>) = ? [pid 5593] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5593] exit_group(0 [pid 5598] <... memfd_create resumed>) = 3 [pid 5596] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5595] <... clone resumed>) = 5601 [pid 5593] <... exit_group resumed>) = ? [pid 5596] exit_group(0 [pid 5598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5596] <... exit_group resumed>) = ? [pid 5595] ptrace(PTRACE_ATTACH, 5601 [pid 5594] <... close resumed>) = 0 [pid 5592] exit(0 [pid 5598] <... mmap resumed>) = 0x7f9e50600000 [pid 5591] +++ exited with 0 +++ [pid 5592] <... exit resumed>) = ? [pid 5594] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5595] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5594] <... openat resumed>) = 3 [pid 5593] +++ exited with 0 +++ [pid 5596] +++ exited with 0 +++ [pid 5592] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5595] exit_group(0 [pid 5594] clone(child_stack=NULL, flags=0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5596, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5602 attached [pid 5595] <... exit_group resumed>) = ? [pid 5088] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5603 attached [pid 5595] +++ exited with 0 +++ [pid 5594] <... clone resumed>) = 5602 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5603 [pid 5603] set_robust_list(0x555566297660, 24 [pid 5598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5594] ptrace(PTRACE_ATTACH, 5602 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5594] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5595, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] exit_group(0 [pid 5603] <... prctl resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5603] setpgid(0, 0 [pid 5594] <... exit_group resumed>) = ? [pid 5603] <... setpgid resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5604 attached [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] set_robust_list(0x555566297660, 24 [pid 5603] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5604 [pid 5604] <... set_robust_list resumed>) = 0 [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5603] write(3, "1000", 4 [pid 5594] +++ exited with 0 +++ [pid 5604] <... prctl resumed>) = 0 [pid 5603] <... write resumed>) = 4 [pid 5604] setpgid(0, 0 [pid 5603] close(3 [pid 5604] <... setpgid resumed>) = 0 [pid 5603] <... close resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5594, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- ./strace-static-x86_64: Process 5605 attached [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] memfd_create("syzkaller", 0 [pid 5605] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5605 [pid 5605] <... set_robust_list resumed>) = 0 [pid 5603] <... memfd_create resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] <... openat resumed>) = 3 [pid 5603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5605] <... prctl resumed>) = 0 [pid 5604] write(3, "1000", 4 [pid 5603] <... mmap resumed>) = 0x7f9e50600000 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5605] setpgid(0, 0 [pid 5604] <... write resumed>) = 4 [pid 5604] close(3 [pid 5605] <... setpgid resumed>) = 0 [pid 5604] <... close resumed>) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5604] memfd_create("syzkaller", 0 [pid 5603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5598] <... write resumed>) = 1048576 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] write(3, "1000", 4 [pid 5604] <... memfd_create resumed>) = 3 [pid 5598] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5606 attached ) = 0 [pid 5606] set_robust_list(0x555566297660, 24 [pid 5605] <... write resumed>) = 4 [pid 5604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5606] <... set_robust_list resumed>) = 0 [pid 5605] close(3 [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] <... mmap resumed>) = 0x7f9e50600000 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5606 [pid 5605] <... close resumed>) = 0 [pid 5606] <... prctl resumed>) = 0 [pid 5598] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5598] close(3 [pid 5603] <... write resumed>) = 1048576 [pid 5606] setpgid(0, 0 [pid 5605] memfd_create("syzkaller", 0 [pid 5606] <... setpgid resumed>) = 0 [pid 5605] <... memfd_create resumed>) = 3 [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5604] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5603] munmap(0x7f9e50600000, 138412032 [pid 5606] <... openat resumed>) = 3 [pid 5605] <... mmap resumed>) = 0x7f9e50600000 [pid 5606] write(3, "1000", 4 [pid 5598] <... close resumed>) = 0 [pid 5606] <... write resumed>) = 4 [pid 5606] close(3 [pid 5598] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5606] <... close resumed>) = 0 [pid 5603] <... munmap resumed>) = 0 [pid 5598] <... openat resumed>) = 3 [pid 5606] memfd_create("syzkaller", 0) = 3 [pid 5598] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5607 attached [pid 5606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5604] <... write resumed>) = 1048576 [pid 5603] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5606] <... mmap resumed>) = 0x7f9e50600000 [pid 5603] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5604] munmap(0x7f9e50600000, 138412032) = 0 [pid 5598] <... clone resumed>) = 5607 [pid 5598] ptrace(PTRACE_ATTACH, 5607) = -1 EPERM (Operation not permitted) [pid 5604] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5598] exit_group(0 [pid 5603] close(3 [pid 5604] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5598] <... exit_group resumed>) = ? [pid 5604] close(3 [pid 5606] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5604] <... close resumed>) = 0 [pid 5598] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5598, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5608 ./strace-static-x86_64: Process 5608 attached [pid 5608] set_robust_list(0x555566297660, 24 [pid 5603] <... close resumed>) = 0 [pid 5597] exit(0 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5597] <... exit resumed>) = ? [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5604] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5608] setpgid(0, 0 [pid 5604] <... openat resumed>) = 3 [pid 5608] <... setpgid resumed>) = 0 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] <... write resumed>) = 1048576 [pid 5604] clone(child_stack=NULL, flags=0 [pid 5597] +++ exited with 0 +++ [pid 5608] <... openat resumed>) = 3 [pid 5608] write(3, "1000", 4) = 4 [pid 5608] close(3) = 0 ./strace-static-x86_64: Process 5609 attached [pid 5608] memfd_create("syzkaller", 0) = 3 [pid 5604] <... clone resumed>) = 5609 [pid 5608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5604] ptrace(PTRACE_ATTACH, 5609 [pid 5608] <... mmap resumed>) = 0x7f9e50600000 [pid 5604] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5604] exit_group(0 [pid 5606] <... write resumed>) = 1048576 [pid 5605] munmap(0x7f9e50600000, 138412032 [pid 5604] <... exit_group resumed>) = ? [pid 5603] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5606] munmap(0x7f9e50600000, 138412032 [pid 5605] <... munmap resumed>) = 0 [pid 5604] +++ exited with 0 +++ [pid 5603] clone(child_stack=NULL, flags=0 [pid 5608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5605] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5604, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5610 attached [pid 5606] <... munmap resumed>) = 0 [pid 5605] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5599] exit(0 [pid 5605] close(3 [pid 5599] <... exit resumed>) = ? [pid 5605] <... close resumed>) = 0 [pid 5608] <... write resumed>) = 1048576 [pid 5608] munmap(0x7f9e50600000, 138412032 [pid 5606] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5603] <... clone resumed>) = 5610 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5606] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5603] ptrace(PTRACE_ATTACH, 5610 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5608] <... munmap resumed>) = 0 [pid 5603] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5599] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5608] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5606] close(3 [pid 5603] exit_group(0) = ? [pid 5603] +++ exited with 0 +++ [pid 5605] <... openat resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5603, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5608] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5608] close(3 [pid 5605] clone(child_stack=NULL, flags=0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5611 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5600] exit(0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5612 [pid 5600] <... exit resumed>) = ? ./strace-static-x86_64: Process 5612 attached ./strace-static-x86_64: Process 5611 attached [pid 5612] set_robust_list(0x555566297660, 24 [pid 5611] set_robust_list(0x555566297660, 24 [pid 5612] <... set_robust_list resumed>) = 0 [pid 5611] <... set_robust_list resumed>) = 0 [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5612] <... prctl resumed>) = 0 [pid 5612] setpgid(0, 0 [pid 5611] <... prctl resumed>) = 0 [pid 5612] <... setpgid resumed>) = 0 [pid 5611] setpgid(0, 0 [pid 5601] exit(0 [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5611] <... setpgid resumed>) = 0 [pid 5601] <... exit resumed>) = ? [pid 5612] <... openat resumed>) = 3 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] +++ exited with 0 +++ ./strace-static-x86_64: Process 5613 attached [pid 5611] <... openat resumed>) = 3 [pid 5612] write(3, "1000", 4 [pid 5605] <... clone resumed>) = 5613 [pid 5612] <... write resumed>) = 4 [pid 5611] write(3, "1000", 4 [pid 5612] close(3 [pid 5611] <... write resumed>) = 4 [pid 5612] <... close resumed>) = 0 [pid 5612] memfd_create("syzkaller", 0 [pid 5611] close(3 [pid 5605] ptrace(PTRACE_ATTACH, 5613 [pid 5601] +++ exited with 0 +++ [pid 5612] <... memfd_create resumed>) = 3 [pid 5611] <... close resumed>) = 0 [pid 5605] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5602] exit(0 [pid 5611] memfd_create("syzkaller", 0 [pid 5605] exit_group(0 [pid 5602] <... exit resumed>) = ? [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5611] <... memfd_create resumed>) = 3 [pid 5608] <... close resumed>) = 0 [pid 5605] <... exit_group resumed>) = ? [pid 5602] +++ exited with 0 +++ [pid 5612] <... mmap resumed>) = 0x7f9e50600000 [pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5606] <... close resumed>) = 0 [pid 5611] <... mmap resumed>) = 0x7f9e50600000 [pid 5605] +++ exited with 0 +++ [pid 5606] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5606] <... openat resumed>) = 3 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5606] clone(child_stack=NULL, flags=0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5614 attached [pid 5612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5608] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5606] <... clone resumed>) = 5614 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5612] <... write resumed>) = 1048576 [pid 5611] <... write resumed>) = 1048576 [pid 5608] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5615 attached [pid 5606] ptrace(PTRACE_ATTACH, 5614 [pid 5611] munmap(0x7f9e50600000, 138412032 [pid 5606] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5606] exit_group(0 [pid 5611] <... munmap resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5615 [pid 5615] set_robust_list(0x555566297660, 24 [pid 5606] <... exit_group resumed>) = ? [pid 5612] munmap(0x7f9e50600000, 138412032 [pid 5611] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5608] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5616 attached [pid 5615] <... set_robust_list resumed>) = 0 [pid 5612] <... munmap resumed>) = 0 [pid 5611] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5606] +++ exited with 0 +++ [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5612] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5611] close(3 [pid 5608] <... clone resumed>) = 5616 [pid 5615] setpgid(0, 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5612] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5608] ptrace(PTRACE_ATTACH, 5616 [pid 5615] <... setpgid resumed>) = 0 [pid 5612] close(3 [pid 5608] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5612] <... close resumed>) = 0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5612] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5608] exit_group(0) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5611] <... close resumed>) = 0 [pid 5611] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5608] +++ exited with 0 +++ [pid 5615] <... openat resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5615] write(3, "1000", 4 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5608, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5615] <... write resumed>) = 4 [pid 5612] <... openat resumed>) = 3 [pid 5615] close(3./strace-static-x86_64: Process 5617 attached ) = 0 [pid 5612] clone(child_stack=NULL, flags=0 [pid 5611] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5617 [pid 5617] set_robust_list(0x555566297660, 24) = 0 [pid 5615] memfd_create("syzkaller", 0 [pid 5611] clone(child_stack=NULL, flags=0 [pid 5607] exit(0./strace-static-x86_64: Process 5618 attached [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... memfd_create resumed>) = 3 [pid 5607] <... exit resumed>) = ? [pid 5617] <... prctl resumed>) = 0 [pid 5612] <... clone resumed>) = 5618 [pid 5617] setpgid(0, 0 [pid 5612] ptrace(PTRACE_ATTACH, 5618 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5617] <... setpgid resumed>) = 0 [pid 5615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5612] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5615] <... mmap resumed>) = 0x7f9e50600000 [pid 5612] exit_group(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5617] <... openat resumed>) = 3 [pid 5612] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5620 attached ./strace-static-x86_64: Process 5619 attached [pid 5617] write(3, "1000", 4 [pid 5612] +++ exited with 0 +++ [pid 5607] +++ exited with 0 +++ [pid 5619] set_robust_list(0x555566297660, 24 [pid 5617] <... write resumed>) = 4 [pid 5611] <... clone resumed>) = 5620 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5619 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5617] close(3 [pid 5611] ptrace(PTRACE_ATTACH, 5620 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5617] <... close resumed>) = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5617] memfd_create("syzkaller", 0 [pid 5611] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5619] <... prctl resumed>) = 0 [pid 5617] <... memfd_create resumed>) = 3 [pid 5611] exit_group(0 [pid 5619] setpgid(0, 0 [pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5611] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5619] <... setpgid resumed>) = 0 [pid 5617] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5611] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5619] <... openat resumed>) = 3 [pid 5617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5609] exit(0 [pid 5619] write(3, "1000", 4 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5609] <... exit resumed>) = ? [pid 5619] <... write resumed>) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5619] close(3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5619] <... close resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5619] memfd_create("syzkaller", 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5621 ./strace-static-x86_64: Process 5622 attached [pid 5619] <... memfd_create resumed>) = 3 [pid 5619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5622] set_robust_list(0x555566297660, 24 [pid 5619] <... mmap resumed>) = 0x7f9e50600000 [pid 5622] <... set_robust_list resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5622 [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5622] setpgid(0, 0 [pid 5609] +++ exited with 0 +++ [pid 5622] <... setpgid resumed>) = 0 [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5621 attached ) = 3 [pid 5622] write(3, "1000", 4) = 4 [pid 5621] set_robust_list(0x555566297660, 24 [pid 5622] close(3 [pid 5619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5622] <... close resumed>) = 0 [pid 5621] <... set_robust_list resumed>) = 0 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5610] exit(0) = ? [pid 5621] <... prctl resumed>) = 0 [pid 5622] memfd_create("syzkaller", 0) = 3 [pid 5622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5610] +++ exited with 0 +++ [pid 5621] setpgid(0, 0) = 0 [pid 5617] <... write resumed>) = 1048576 [pid 5615] <... write resumed>) = 1048576 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5617] munmap(0x7f9e50600000, 138412032) = 0 [pid 5617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5617] close(3 [pid 5621] <... openat resumed>) = 3 [pid 5621] write(3, "1000", 4 [pid 5622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5621] <... write resumed>) = 4 [pid 5615] munmap(0x7f9e50600000, 138412032 [pid 5621] close(3) = 0 [pid 5621] memfd_create("syzkaller", 0 [pid 5615] <... munmap resumed>) = 0 [pid 5621] <... memfd_create resumed>) = 3 [pid 5615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5615] close(3 [pid 5613] exit(0) = ? [pid 5622] <... write resumed>) = 1048576 [pid 5621] <... mmap resumed>) = 0x7f9e50600000 [pid 5617] <... close resumed>) = 0 [pid 5615] <... close resumed>) = 0 [pid 5613] +++ exited with 0 +++ [pid 5622] munmap(0x7f9e50600000, 138412032 [pid 5621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5619] <... write resumed>) = 1048576 [pid 5617] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5615] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5622] <... munmap resumed>) = 0 [pid 5617] <... openat resumed>) = 3 [pid 5615] <... openat resumed>) = 3 [pid 5619] munmap(0x7f9e50600000, 138412032 [pid 5617] clone(child_stack=NULL, flags=0 [pid 5615] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5624 attached ./strace-static-x86_64: Process 5623 attached [pid 5622] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5619] <... munmap resumed>) = 0 [pid 5617] <... clone resumed>) = 5623 [pid 5622] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5619] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5617] ptrace(PTRACE_ATTACH, 5623 [pid 5615] <... clone resumed>) = 5624 [pid 5622] close(3 [pid 5619] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5617] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5615] ptrace(PTRACE_ATTACH, 5624 [pid 5619] close(3 [pid 5617] exit_group(0) = ? [pid 5615] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5615] exit_group(0) = ? [pid 5615] +++ exited with 0 +++ [pid 5614] exit(0 [pid 5617] +++ exited with 0 +++ [pid 5614] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5614] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5625 attached [pid 5625] set_robust_list(0x555566297660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5625 [pid 5625] <... set_robust_list resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] setpgid(0, 0) = 0 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5619] <... close resumed>) = 0 [pid 5621] <... write resumed>) = 1048576 [pid 5625] write(3, "1000", 4 [pid 5622] <... close resumed>) = 0 [pid 5619] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5626 attached [pid 5625] <... write resumed>) = 4 [pid 5622] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5621] munmap(0x7f9e50600000, 138412032 [pid 5619] <... openat resumed>) = 3 [pid 5626] set_robust_list(0x555566297660, 24 [pid 5625] close(3 [pid 5622] <... openat resumed>) = 3 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5616] exit(0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5626 [pid 5625] <... close resumed>) = 0 [pid 5619] clone(child_stack=NULL, flags=0 [pid 5622] clone(child_stack=NULL, flags=0 [pid 5621] <... munmap resumed>) = 0 [pid 5616] <... exit resumed>) = ? [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5625] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5628 attached ./strace-static-x86_64: Process 5627 attached [pid 5626] <... prctl resumed>) = 0 [pid 5625] <... memfd_create resumed>) = 3 [pid 5622] <... clone resumed>) = 5628 [pid 5621] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5619] <... clone resumed>) = 5627 [pid 5626] setpgid(0, 0 [pid 5625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5622] ptrace(PTRACE_ATTACH, 5628 [pid 5621] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5619] ptrace(PTRACE_ATTACH, 5627 [pid 5616] +++ exited with 0 +++ [pid 5626] <... setpgid resumed>) = 0 [pid 5625] <... mmap resumed>) = 0x7f9e50600000 [pid 5622] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5621] close(3 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5619] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5622] exit_group(0 [pid 5619] exit_group(0 [pid 5626] <... openat resumed>) = 3 [pid 5622] <... exit_group resumed>) = ? [pid 5619] <... exit_group resumed>) = ? [pid 5619] +++ exited with 0 +++ [pid 5626] write(3, "1000", 4 [pid 5622] +++ exited with 0 +++ [pid 5621] <... close resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5626] <... write resumed>) = 4 [pid 5626] close(3 [pid 5625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5621] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5622, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5626] <... close resumed>) = 0 [pid 5621] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5626] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5626] <... memfd_create resumed>) = 3 [pid 5621] clone(child_stack=NULL, flags=0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5618] exit(0./strace-static-x86_64: Process 5629 attached [pid 5626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5620] exit(0 [pid 5618] <... exit resumed>) = ? ./strace-static-x86_64: Process 5630 attached [pid 5629] set_robust_list(0x555566297660, 24 [pid 5626] <... mmap resumed>) = 0x7f9e50600000 [pid 5625] <... write resumed>) = 1048576 [pid 5620] <... exit resumed>) = ? [pid 5618] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5629 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5629] <... set_robust_list resumed>) = 0 [pid 5625] munmap(0x7f9e50600000, 138412032 [pid 5621] <... clone resumed>) = 5630 [pid 5620] +++ exited with 0 +++ [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5625] <... munmap resumed>) = 0 [pid 5621] ptrace(PTRACE_ATTACH, 5630 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5629] <... prctl resumed>) = 0 [pid 5629] setpgid(0, 0) = 0 [pid 5621] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5625] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5629] <... openat resumed>) = 3 [pid 5625] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5629] write(3, "1000", 4./strace-static-x86_64: Process 5631 attached [pid 5626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5625] close(3 [pid 5621] exit_group(0 [pid 5631] set_robust_list(0x555566297660, 24 [pid 5629] <... write resumed>) = 4 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5631 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5621] <... exit_group resumed>) = ? [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5629] close(3 [pid 5631] write(3, "1000", 4 [pid 5629] <... close resumed>) = 0 [pid 5626] <... write resumed>) = 1048576 [pid 5625] <... close resumed>) = 0 [pid 5621] +++ exited with 0 +++ [pid 5631] <... write resumed>) = 4 [pid 5626] munmap(0x7f9e50600000, 138412032 [pid 5631] close(3 [pid 5629] memfd_create("syzkaller", 0 [pid 5625] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5631] <... close resumed>) = 0 [pid 5626] <... munmap resumed>) = 0 [pid 5625] <... openat resumed>) = 3 [pid 5631] memfd_create("syzkaller", 0 [pid 5629] <... memfd_create resumed>) = 3 [pid 5626] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5625] clone(child_stack=NULL, flags=0 [pid 5631] <... memfd_create resumed>) = 3 [pid 5629] <... mmap resumed>) = 0x7f9e50600000 [pid 5626] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5626] close(3 [pid 5631] <... mmap resumed>) = 0x7f9e50600000 [pid 5625] <... clone resumed>) = 5632 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5625] ptrace(PTRACE_ATTACH, 5632 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5625] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] exit_group(0) = ? ./strace-static-x86_64: Process 5633 attached ./strace-static-x86_64: Process 5632 attached [pid 5625] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5633] set_robust_list(0x555566297660, 24) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5633 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5633] <... prctl resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5633] setpgid(0, 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5634 attached [pid 5633] <... setpgid resumed>) = 0 [pid 5631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5626] <... close resumed>) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5634 [pid 5634] set_robust_list(0x555566297660, 24 [pid 5633] <... openat resumed>) = 3 [pid 5631] <... write resumed>) = 1048576 [pid 5626] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] write(3, "1000", 4) = 4 [pid 5626] <... openat resumed>) = 3 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] close(3 [pid 5626] clone(child_stack=NULL, flags=0 [pid 5634] <... prctl resumed>) = 0 [pid 5633] <... close resumed>) = 0 [pid 5631] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5635 attached [pid 5634] setpgid(0, 0 [pid 5633] memfd_create("syzkaller", 0 [pid 5629] <... write resumed>) = 1048576 [pid 5634] <... setpgid resumed>) = 0 [pid 5633] <... memfd_create resumed>) = 3 [pid 5629] munmap(0x7f9e50600000, 138412032 [pid 5623] exit(0 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5631] <... munmap resumed>) = 0 [pid 5629] <... munmap resumed>) = 0 [pid 5626] <... clone resumed>) = 5635 [pid 5624] exit(0 [pid 5623] <... exit resumed>) = ? [pid 5634] <... openat resumed>) = 3 [pid 5633] <... mmap resumed>) = 0x7f9e50600000 [pid 5631] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5629] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5626] ptrace(PTRACE_ATTACH, 5635 [pid 5624] <... exit resumed>) = ? [pid 5629] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5629] close(3 [pid 5634] write(3, "1000", 4 [pid 5633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5631] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5626] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5624] +++ exited with 0 +++ [pid 5623] +++ exited with 0 +++ [pid 5634] <... write resumed>) = 4 [pid 5626] exit_group(0 [pid 5631] close(3) = 0 [pid 5634] close(3 [pid 5626] <... exit_group resumed>) = ? [pid 5634] <... close resumed>) = 0 [pid 5628] exit(0 [pid 5627] exit(0) = ? [pid 5626] +++ exited with 0 +++ [pid 5628] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5634] memfd_create("syzkaller", 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5634] <... memfd_create resumed>) = 3 [pid 5633] <... write resumed>) = 1048576 [pid 5631] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5629] <... close resumed>) = 0 [pid 5628] +++ exited with 0 +++ [pid 5634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5633] munmap(0x7f9e50600000, 138412032 [pid 5631] <... openat resumed>) = 3 [pid 5629] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5627] +++ exited with 0 +++ ./strace-static-x86_64: Process 5636 attached [pid 5634] <... mmap resumed>) = 0x7f9e50600000 [pid 5636] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5636 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... munmap resumed>) = 0 [pid 5636] <... prctl resumed>) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] <... openat resumed>) = 3 [pid 5631] clone(child_stack=NULL, flags=0 [pid 5629] clone(child_stack=NULL, flags=0 [pid 5633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5636] <... openat resumed>) = 3 [pid 5636] write(3, "1000", 4./strace-static-x86_64: Process 5637 attached ) = 4 [pid 5633] close(3 [pid 5629] <... clone resumed>) = 5637 ./strace-static-x86_64: Process 5638 attached [pid 5636] close(3) = 0 [pid 5631] <... clone resumed>) = 5638 [pid 5629] ptrace(PTRACE_ATTACH, 5637 [pid 5631] ptrace(PTRACE_ATTACH, 5638 [pid 5629] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5636] memfd_create("syzkaller", 0 [pid 5631] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5629] exit_group(0 [pid 5631] exit_group(0 [pid 5629] <... exit_group resumed>) = ? [pid 5636] <... memfd_create resumed>) = 3 [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5633] <... close resumed>) = 0 [pid 5631] <... exit_group resumed>) = ? [pid 5629] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5631] +++ exited with 0 +++ [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5630] exit(0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5630] <... exit resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5630] +++ exited with 0 +++ [pid 5088] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5639 attached [pid 5639] set_robust_list(0x555566297660, 24 [pid 5633] <... openat resumed>) = 3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5639 [pid 5634] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5633] clone(child_stack=NULL, flags=0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5639] <... set_robust_list resumed>) = 0 [pid 5636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5640 attached [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5639] <... prctl resumed>) = 0 [pid 5639] setpgid(0, 0) = 0 [pid 5633] <... clone resumed>) = 5640 ./strace-static-x86_64: Process 5641 attached [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] ptrace(PTRACE_ATTACH, 5640 [pid 5641] set_robust_list(0x555566297660, 24) = 0 [pid 5633] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5639] <... openat resumed>) = 3 [pid 5633] exit_group(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5641 [pid 5641] <... prctl resumed>) = 0 [pid 5633] <... exit_group resumed>) = ? [pid 5639] write(3, "1000", 4) = 4 [pid 5641] setpgid(0, 0 [pid 5639] close(3 [pid 5633] +++ exited with 0 +++ [pid 5639] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5639] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5639] <... memfd_create resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5641] <... setpgid resumed>) = 0 [pid 5634] <... write resumed>) = 1048576 [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5641] <... openat resumed>) = 3 [pid 5636] <... write resumed>) = 1048576 [pid 5634] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5642 attached [pid 5641] write(3, "1000", 4 [pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5636] munmap(0x7f9e50600000, 138412032 [pid 5634] <... munmap resumed>) = 0 [pid 5642] set_robust_list(0x555566297660, 24 [pid 5641] <... write resumed>) = 4 [pid 5636] <... munmap resumed>) = 0 [pid 5641] close(3 [pid 5634] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5642 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] memfd_create("syzkaller", 0 [pid 5634] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5642] <... prctl resumed>) = 0 [pid 5641] <... memfd_create resumed>) = 3 [pid 5636] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5634] close(3 [pid 5642] setpgid(0, 0 [pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5639] <... write resumed>) = 1048576 [pid 5642] <... setpgid resumed>) = 0 [pid 5639] munmap(0x7f9e50600000, 138412032 [pid 5636] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5641] <... mmap resumed>) = 0x7f9e50600000 [pid 5636] close(3 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] <... munmap resumed>) = 0 [pid 5634] <... close resumed>) = 0 [pid 5632] exit(0 [pid 5642] <... openat resumed>) = 3 [pid 5636] <... close resumed>) = 0 [pid 5634] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5632] <... exit resumed>) = ? [pid 5639] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5642] write(3, "1000", 4 [pid 5641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5634] <... openat resumed>) = 3 [pid 5642] <... write resumed>) = 4 [pid 5639] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5642] close(3 [pid 5639] close(3 [pid 5642] <... close resumed>) = 0 [pid 5634] clone(child_stack=NULL, flags=0 [pid 5642] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5643 attached ) = 3 [pid 5642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5634] <... clone resumed>) = 5643 [pid 5634] ptrace(PTRACE_ATTACH, 5643 [pid 5632] +++ exited with 0 +++ [pid 5636] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5634] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5636] <... openat resumed>) = 3 [pid 5634] exit_group(0) = ? [pid 5641] <... write resumed>) = 1048576 [pid 5641] munmap(0x7f9e50600000, 138412032 [pid 5642] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5639] <... close resumed>) = 0 [pid 5636] clone(child_stack=NULL, flags=0 [pid 5634] +++ exited with 0 +++ ./strace-static-x86_64: Process 5644 attached [pid 5641] <... munmap resumed>) = 0 [pid 5639] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5635] exit(0 [pid 5641] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5639] <... openat resumed>) = 3 [pid 5636] <... clone resumed>) = 5644 [pid 5635] <... exit resumed>) = ? [pid 5636] ptrace(PTRACE_ATTACH, 5644 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5641] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5639] clone(child_stack=NULL, flags=0 [pid 5636] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5635] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5645 attached [pid 5641] close(3 [pid 5636] exit_group(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5636] <... exit_group resumed>) = ? [pid 5641] <... close resumed>) = 0 [pid 5639] <... clone resumed>) = 5645 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5646 ./strace-static-x86_64: Process 5646 attached [pid 5642] <... write resumed>) = 1048576 [pid 5641] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5639] ptrace(PTRACE_ATTACH, 5645 [pid 5636] +++ exited with 0 +++ [pid 5646] set_robust_list(0x555566297660, 24 [pid 5642] munmap(0x7f9e50600000, 138412032 [pid 5641] <... openat resumed>) = 3 [pid 5639] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5646] <... set_robust_list resumed>) = 0 [pid 5641] clone(child_stack=NULL, flags=0 [pid 5639] exit_group(0 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] <... munmap resumed>) = 0 [pid 5639] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5647 attached [pid 5646] <... prctl resumed>) = 0 [pid 5642] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5639] +++ exited with 0 +++ [pid 5646] setpgid(0, 0 [pid 5642] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5641] <... clone resumed>) = 5647 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5646] <... setpgid resumed>) = 0 [pid 5642] close(3 [pid 5641] ptrace(PTRACE_ATTACH, 5647 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5641] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] <... close resumed>) = 0 [pid 5641] exit_group(0) = ? ./strace-static-x86_64: Process 5648 attached [pid 5646] <... openat resumed>) = 3 [pid 5642] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5648] set_robust_list(0x555566297660, 24 [pid 5646] write(3, "1000", 4 [pid 5642] <... openat resumed>) = 3 [pid 5641] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5648 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5648] <... set_robust_list resumed>) = 0 [pid 5646] <... write resumed>) = 4 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5646] close(3 [pid 5642] clone(child_stack=NULL, flags=0 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] <... close resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5637] exit(0) = ? [pid 5646] memfd_create("syzkaller", 0 [pid 5638] exit(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5649 attached ./strace-static-x86_64: Process 5650 attached [pid 5648] <... prctl resumed>) = 0 [pid 5646] <... memfd_create resumed>) = 3 [pid 5638] <... exit resumed>) = ? [pid 5637] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5650] set_robust_list(0x555566297660, 24 [pid 5648] setpgid(0, 0 [pid 5646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5642] <... clone resumed>) = 5649 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5648] <... setpgid resumed>) = 0 [pid 5646] <... mmap resumed>) = 0x7f9e50600000 [pid 5642] ptrace(PTRACE_ATTACH, 5649 [pid 5638] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5650 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5651 attached [pid 5650] <... prctl resumed>) = 0 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] exit_group(0 [pid 5650] setpgid(0, 0 [pid 5651] set_robust_list(0x555566297660, 24 [pid 5650] <... setpgid resumed>) = 0 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5648] <... openat resumed>) = 3 [pid 5642] <... exit_group resumed>) = ? [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] +++ exited with 0 +++ [pid 5651] <... prctl resumed>) = 0 [pid 5648] write(3, "1000", 4 [pid 5651] setpgid(0, 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5651] <... setpgid resumed>) = 0 [pid 5648] <... write resumed>) = 4 [pid 5648] close(3 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] <... openat resumed>) = 3 [pid 5648] <... close resumed>) = 0 [pid 5646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5651 [pid 5651] <... openat resumed>) = 3 [pid 5650] write(3, "1000", 4 [pid 5648] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5651] write(3, "1000", 4 [pid 5650] <... write resumed>) = 4 [pid 5648] <... memfd_create resumed>) = 3 [pid 5651] <... write resumed>) = 4 [pid 5650] close(3 [pid 5648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5651] close(3 [pid 5650] <... close resumed>) = 0 [pid 5648] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5651] <... close resumed>) = 0 [pid 5651] memfd_create("syzkaller", 0 [pid 5650] memfd_create("syzkaller", 0) = 3 [pid 5650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5640] exit(0) = ? [pid 5650] <... mmap resumed>) = 0x7f9e50600000 [pid 5640] +++ exited with 0 +++ [pid 5651] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5652 attached [pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5648] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5646] <... write resumed>) = 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5652 [pid 5651] <... mmap resumed>) = 0x7f9e50600000 [pid 5650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5652] set_robust_list(0x555566297660, 24 [pid 5651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5648] <... write resumed>) = 1048576 [pid 5646] munmap(0x7f9e50600000, 138412032 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5650] <... write resumed>) = 1048576 [pid 5648] munmap(0x7f9e50600000, 138412032 [pid 5646] <... munmap resumed>) = 0 [pid 5648] <... munmap resumed>) = 0 [pid 5648] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5646] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5648] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5648] close(3 [pid 5646] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] close(3 [pid 5651] <... write resumed>) = 1048576 [pid 5650] munmap(0x7f9e50600000, 138412032 [pid 5652] <... prctl resumed>) = 0 [pid 5652] setpgid(0, 0 [pid 5651] munmap(0x7f9e50600000, 138412032 [pid 5652] <... setpgid resumed>) = 0 [pid 5650] <... munmap resumed>) = 0 [pid 5651] <... munmap resumed>) = 0 [pid 5651] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5650] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5650] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5651] close(3 [pid 5650] close(3 [pid 5652] <... openat resumed>) = 3 [pid 5648] <... close resumed>) = 0 [pid 5646] <... close resumed>) = 0 [pid 5643] exit(0 [pid 5648] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5652] write(3, "1000", 4 [pid 5648] <... openat resumed>) = 3 [pid 5643] <... exit resumed>) = ? [pid 5652] <... write resumed>) = 4 [pid 5652] close(3) = 0 [pid 5648] clone(child_stack=NULL, flags=0 [pid 5652] memfd_create("syzkaller", 0 [pid 5643] +++ exited with 0 +++ [pid 5652] <... memfd_create resumed>) = 3 [pid 5651] <... close resumed>) = 0 [pid 5650] <... close resumed>) = 0 [pid 5646] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5653 attached [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5651] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5652] <... mmap resumed>) = 0x7f9e50600000 [pid 5650] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5651] <... openat resumed>) = 3 [pid 5650] <... openat resumed>) = 3 [pid 5648] <... clone resumed>) = 5653 [pid 5646] <... openat resumed>) = 3 [pid 5651] clone(child_stack=NULL, flags=0 [pid 5648] ptrace(PTRACE_ATTACH, 5653 [pid 5646] clone(child_stack=NULL, flags=0 [pid 5650] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5655 attached ./strace-static-x86_64: Process 5656 attached ./strace-static-x86_64: Process 5654 attached [pid 5652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5648] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5651] <... clone resumed>) = 5654 [pid 5650] <... clone resumed>) = 5656 [pid 5648] exit_group(0 [pid 5646] <... clone resumed>) = 5655 [pid 5651] ptrace(PTRACE_ATTACH, 5654 [pid 5650] ptrace(PTRACE_ATTACH, 5656 [pid 5648] <... exit_group resumed>) = ? [pid 5646] ptrace(PTRACE_ATTACH, 5655 [pid 5652] <... write resumed>) = 1048576 [pid 5651] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5650] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5646] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5651] exit_group(0 [pid 5648] +++ exited with 0 +++ [pid 5652] munmap(0x7f9e50600000, 138412032 [pid 5651] <... exit_group resumed>) = ? [pid 5650] exit_group(0 [pid 5646] exit_group(0 [pid 5644] exit(0 [pid 5650] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5648, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5646] <... exit_group resumed>) = ? [pid 5644] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5652] <... munmap resumed>) = 0 [pid 5651] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5646] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5652] close(3 [pid 5650] +++ exited with 0 +++ [pid 5644] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5645] exit(0 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5650, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5657 attached [pid 5652] <... close resumed>) = 0 [pid 5645] <... exit resumed>) = ? [pid 5090] <... restart_syscall resumed>) = 0 [pid 5652] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5657] set_robust_list(0x555566297660, 24 [pid 5645] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5657 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5652] <... openat resumed>) = 3 [pid 5647] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5647] <... exit resumed>) = ? [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5657] <... prctl resumed>) = 0 [pid 5652] clone(child_stack=NULL, flags=0 [pid 5647] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] setpgid(0, 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5659 attached ./strace-static-x86_64: Process 5658 attached [pid 5657] <... setpgid resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5658] set_robust_list(0x555566297660, 24 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5658 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5660 attached [pid 5658] setpgid(0, 0 [pid 5657] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5661 attached [pid 5658] <... setpgid resumed>) = 0 [pid 5652] <... clone resumed>) = 5659 [pid 5661] set_robust_list(0x555566297660, 24 [pid 5657] write(3, "1000", 4 [pid 5652] ptrace(PTRACE_ATTACH, 5659 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5661 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5657] <... write resumed>) = 4 [pid 5652] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] close(3 [pid 5652] exit_group(0 [pid 5657] <... close resumed>) = 0 [pid 5652] <... exit_group resumed>) = ? [pid 5661] <... prctl resumed>) = 0 [pid 5657] memfd_create("syzkaller", 0 [pid 5660] set_robust_list(0x555566297660, 24 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5660 [pid 5661] setpgid(0, 0 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5661] <... setpgid resumed>) = 0 [pid 5658] <... openat resumed>) = 3 [pid 5657] <... memfd_create resumed>) = 3 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] write(3, "1000", 4 [pid 5657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5661] <... openat resumed>) = 3 [pid 5660] <... prctl resumed>) = 0 [pid 5658] <... write resumed>) = 4 [pid 5657] <... mmap resumed>) = 0x7f9e50600000 [pid 5652] +++ exited with 0 +++ [pid 5649] exit(0 [pid 5661] write(3, "1000", 4 [pid 5660] setpgid(0, 0 [pid 5658] close(3 [pid 5660] <... setpgid resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5658] <... close resumed>) = 0 [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5658] memfd_create("syzkaller", 0) = 3 [pid 5661] <... write resumed>) = 4 [pid 5649] <... exit resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5649] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5661] close(3 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] <... mmap resumed>) = 0x7f9e50600000 [pid 5661] <... close resumed>) = 0 [pid 5660] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5662 attached [pid 5661] memfd_create("syzkaller", 0 [pid 5662] set_robust_list(0x555566297660, 24 [pid 5661] <... memfd_create resumed>) = 3 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5660] write(3, "1000", 4 [pid 5658] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5660] <... write resumed>) = 4 [pid 5660] close(3 [pid 5662] <... prctl resumed>) = 0 [pid 5660] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5662 [pid 5662] setpgid(0, 0 [pid 5660] memfd_create("syzkaller", 0 [pid 5657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5662] <... setpgid resumed>) = 0 [pid 5660] <... memfd_create resumed>) = 3 [pid 5660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] <... mmap resumed>) = 0x7f9e50600000 [pid 5662] <... openat resumed>) = 3 [pid 5662] write(3, "1000", 4) = 4 [pid 5662] close(3) = 0 [pid 5662] memfd_create("syzkaller", 0) = 3 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5658] <... write resumed>) = 1048576 [pid 5657] <... write resumed>) = 1048576 [pid 5660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5661] <... write resumed>) = 1048576 [pid 5658] munmap(0x7f9e50600000, 138412032 [pid 5657] munmap(0x7f9e50600000, 138412032 [pid 5662] <... write resumed>) = 1048576 [pid 5660] <... write resumed>) = 1048576 [pid 5661] munmap(0x7f9e50600000, 138412032 [pid 5657] <... munmap resumed>) = 0 [pid 5661] <... munmap resumed>) = 0 [pid 5660] munmap(0x7f9e50600000, 138412032 [pid 5657] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5658] <... munmap resumed>) = 0 [pid 5657] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5658] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5657] close(3 [pid 5661] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5660] <... munmap resumed>) = 0 [pid 5658] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5657] <... close resumed>) = 0 [pid 5661] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5661] close(3) = 0 [pid 5660] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5658] close(3 [pid 5662] munmap(0x7f9e50600000, 138412032 [pid 5660] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5662] <... munmap resumed>) = 0 [pid 5660] close(3 [pid 5662] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5657] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5662] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5661] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5657] <... openat resumed>) = 3 [pid 5662] close(3 [pid 5661] <... openat resumed>) = 3 [pid 5660] <... close resumed>) = 0 [pid 5658] <... close resumed>) = 0 [pid 5657] clone(child_stack=NULL, flags=0 [pid 5660] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5653] exit(0 [pid 5658] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5661] clone(child_stack=NULL, flags=0 [pid 5660] <... openat resumed>) = 3 [pid 5653] <... exit resumed>) = ? [pid 5656] exit(0) = ? ./strace-static-x86_64: Process 5664 attached ./strace-static-x86_64: Process 5663 attached [pid 5662] <... close resumed>) = 0 [pid 5660] clone(child_stack=NULL, flags=0 [pid 5658] <... openat resumed>) = 3 [pid 5658] clone(child_stack=NULL, flags=0 [pid 5657] <... clone resumed>) = 5663 [pid 5655] exit(0 [pid 5654] exit(0 [pid 5657] ptrace(PTRACE_ATTACH, 5663 [pid 5656] +++ exited with 0 +++ [pid 5655] <... exit resumed>) = ? [pid 5654] <... exit resumed>) = ? [pid 5653] +++ exited with 0 +++ [pid 5655] +++ exited with 0 +++ [pid 5654] +++ exited with 0 +++ [pid 5662] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5661] <... clone resumed>) = 5664 [pid 5661] ptrace(PTRACE_ATTACH, 5664 [pid 5657] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5657] exit_group(0 [pid 5662] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5666 attached ./strace-static-x86_64: Process 5665 attached [pid 5662] clone(child_stack=NULL, flags=0 [pid 5661] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5657] <... exit_group resumed>) = ? [pid 5657] +++ exited with 0 +++ [pid 5661] exit_group(0 [pid 5660] <... clone resumed>) = 5665 [pid 5658] <... clone resumed>) = 5666 [pid 5661] <... exit_group resumed>) = ? [pid 5660] ptrace(PTRACE_ATTACH, 5665 [pid 5658] ptrace(PTRACE_ATTACH, 5666 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5661] +++ exited with 0 +++ [pid 5660] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5658] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5667 attached [pid 5660] exit_group(0 [pid 5658] exit_group(0 [pid 5090] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5668 attached [pid 5660] <... exit_group resumed>) = ? [pid 5658] <... exit_group resumed>) = ? [pid 5090] <... restart_syscall resumed>) = 0 [pid 5660] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5668 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5658] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5668] set_robust_list(0x555566297660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5660, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] <... restart_syscall resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5669 attached [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5669] set_robust_list(0x555566297660, 24 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5662] <... clone resumed>) = 5667 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5669 [pid 5669] <... set_robust_list resumed>) = 0 [pid 5662] ptrace(PTRACE_ATTACH, 5667 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5668] <... prctl resumed>) = 0 [pid 5662] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5670 attached [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5668] setpgid(0, 0 [pid 5662] exit_group(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5670] set_robust_list(0x555566297660, 24 [pid 5668] <... setpgid resumed>) = 0 [pid 5662] <... exit_group resumed>) = ? [pid 5659] exit(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5669] <... prctl resumed>) = 0 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5662] +++ exited with 0 +++ [pid 5659] <... exit resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5670 ./strace-static-x86_64: Process 5671 attached [pid 5670] <... set_robust_list resumed>) = 0 [pid 5669] setpgid(0, 0 [pid 5659] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5662, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5671] set_robust_list(0x555566297660, 24) = 0 [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5669] <... setpgid resumed>) = 0 [pid 5668] <... openat resumed>) = 3 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] <... prctl resumed>) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] write(3, "1000", 4 [pid 5671] <... prctl resumed>) = 0 [pid 5670] setpgid(0, 0 [pid 5669] <... openat resumed>) = 3 [pid 5668] <... write resumed>) = 4 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5671 [pid 5671] setpgid(0, 0 [pid 5670] <... setpgid resumed>) = 0 [pid 5668] close(3 [pid 5671] <... setpgid resumed>) = 0 [pid 5669] write(3, "1000", 4 [pid 5668] <... close resumed>) = 0 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5669] <... write resumed>) = 4 [pid 5668] memfd_create("syzkaller", 0 [pid 5670] <... openat resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5671] <... openat resumed>) = 3 [pid 5670] write(3, "1000", 4 [pid 5669] close(3 [pid 5668] <... memfd_create resumed>) = 3 [pid 5671] write(3, "1000", 4 [pid 5669] <... close resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5671] <... write resumed>) = 4 [pid 5669] memfd_create("syzkaller", 0 [pid 5671] close(3 [pid 5670] <... write resumed>) = 4 [pid 5669] <... memfd_create resumed>) = 3 [pid 5668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5671] <... close resumed>) = 0 [pid 5669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5670] close(3 [pid 5668] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5672 attached [pid 5671] memfd_create("syzkaller", 0 [pid 5669] <... mmap resumed>) = 0x7f9e50600000 [pid 5671] <... memfd_create resumed>) = 3 [pid 5671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5672] set_robust_list(0x555566297660, 24 [pid 5670] <... close resumed>) = 0 [pid 5671] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5672 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5670] memfd_create("syzkaller", 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] <... memfd_create resumed>) = 3 [pid 5672] <... prctl resumed>) = 0 [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5668] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5672] setpgid(0, 0 [pid 5670] <... mmap resumed>) = 0x7f9e50600000 [pid 5672] <... setpgid resumed>) = 0 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5672] write(3, "1000", 4) = 4 [pid 5672] close(3) = 0 [pid 5672] memfd_create("syzkaller", 0) = 3 [pid 5672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5672] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5669] <... write resumed>) = 1048576 [pid 5671] <... write resumed>) = 1048576 [pid 5672] <... write resumed>) = 1048576 [pid 5671] munmap(0x7f9e50600000, 138412032 [pid 5670] <... write resumed>) = 1048576 [pid 5669] munmap(0x7f9e50600000, 138412032 [pid 5668] <... write resumed>) = 1048576 [pid 5672] munmap(0x7f9e50600000, 138412032) = 0 [pid 5671] <... munmap resumed>) = 0 [pid 5669] <... munmap resumed>) = 0 [pid 5671] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5669] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5672] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5671] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5669] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5668] munmap(0x7f9e50600000, 138412032 [pid 5672] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5671] close(3 [pid 5670] munmap(0x7f9e50600000, 138412032 [pid 5669] close(3 [pid 5668] <... munmap resumed>) = 0 [pid 5672] close(3 [pid 5668] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5668] close(3) = 0 [pid 5672] <... close resumed>) = 0 [pid 5671] <... close resumed>) = 0 [pid 5670] <... munmap resumed>) = 0 [pid 5669] <... close resumed>) = 0 [pid 5672] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5671] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5670] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5668] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5669] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5663] exit(0 [pid 5672] <... openat resumed>) = 3 [pid 5671] <... openat resumed>) = 3 [pid 5670] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5668] <... openat resumed>) = 3 [pid 5663] <... exit resumed>) = ? [pid 5670] close(3 [pid 5669] <... openat resumed>) = 3 [pid 5671] clone(child_stack=NULL, flags=0 [pid 5669] clone(child_stack=NULL, flags=0 [pid 5663] +++ exited with 0 +++ [pid 5672] clone(child_stack=NULL, flags=0 [pid 5668] clone(child_stack=NULL, flags=0 [pid 5664] exit(0) = ? [pid 5664] +++ exited with 0 +++ ./strace-static-x86_64: Process 5673 attached ./strace-static-x86_64: Process 5675 attached ./strace-static-x86_64: Process 5676 attached ./strace-static-x86_64: Process 5674 attached [pid 5671] <... clone resumed>) = 5673 [pid 5672] <... clone resumed>) = 5676 [pid 5671] ptrace(PTRACE_ATTACH, 5673 [pid 5669] <... clone resumed>) = 5674 [pid 5668] <... clone resumed>) = 5675 [pid 5666] exit(0 [pid 5665] exit(0 [pid 5672] ptrace(PTRACE_ATTACH, 5676 [pid 5671] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5669] ptrace(PTRACE_ATTACH, 5674 [pid 5668] ptrace(PTRACE_ATTACH, 5675 [pid 5666] <... exit resumed>) = ? [pid 5665] <... exit resumed>) = ? [pid 5672] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5671] exit_group(0 [pid 5669] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5668] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5672] exit_group(0 [pid 5671] <... exit_group resumed>) = ? [pid 5669] exit_group(0 [pid 5668] exit_group(0 [pid 5672] <... exit_group resumed>) = ? [pid 5669] <... exit_group resumed>) = ? [pid 5668] <... exit_group resumed>) = ? [pid 5671] +++ exited with 0 +++ [pid 5669] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5672] +++ exited with 0 +++ [pid 5668] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5668, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=0} --- [pid 5087] <... restart_syscall resumed>) = 0 [pid 5666] +++ exited with 0 +++ [pid 5665] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5667] exit(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5670] <... close resumed>) = 0 [pid 5667] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5670] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5677 attached [pid 5670] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5670] clone(child_stack=NULL, flags=0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5677] set_robust_list(0x555566297660, 24 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5677 [pid 5677] <... set_robust_list resumed>) = 0 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5678 attached ./strace-static-x86_64: Process 5680 attached ./strace-static-x86_64: Process 5679 attached ) = 0 [pid 5667] +++ exited with 0 +++ [pid 5678] set_robust_list(0x555566297660, 24 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5679] set_robust_list(0x555566297660, 24 [pid 5678] <... set_robust_list resumed>) = 0 [pid 5677] setpgid(0, 0 [pid 5670] <... clone resumed>) = 5680 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5678 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5679 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] <... set_robust_list resumed>) = 0 [pid 5677] <... setpgid resumed>) = 0 [pid 5670] ptrace(PTRACE_ATTACH, 5680 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5678] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5681 attached [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5678] setpgid(0, 0 [pid 5677] <... openat resumed>) = 3 [pid 5670] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5681] set_robust_list(0x555566297660, 24 [pid 5679] <... prctl resumed>) = 0 [pid 5678] <... setpgid resumed>) = 0 [pid 5677] write(3, "1000", 4 [pid 5670] exit_group(0 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5679] setpgid(0, 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5677] <... write resumed>) = 4 [pid 5670] <... exit_group resumed>) = ? [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5681 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] <... setpgid resumed>) = 0 [pid 5678] <... openat resumed>) = 3 [pid 5677] close(3 [pid 5670] +++ exited with 0 +++ [pid 5681] <... prctl resumed>) = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5678] write(3, "1000", 4 [pid 5677] <... close resumed>) = 0 [pid 5681] setpgid(0, 0 [pid 5678] <... write resumed>) = 4 [pid 5679] <... openat resumed>) = 3 [pid 5677] memfd_create("syzkaller", 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5670, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5681] <... setpgid resumed>) = 0 [pid 5679] write(3, "1000", 4 [pid 5678] close(3 [pid 5677] <... memfd_create resumed>) = 3 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5679] <... write resumed>) = 4 [pid 5678] <... close resumed>) = 0 [pid 5677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5679] close(3 [pid 5678] memfd_create("syzkaller", 0 [pid 5677] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5682 attached [pid 5681] <... openat resumed>) = 3 [pid 5679] <... close resumed>) = 0 [pid 5678] <... memfd_create resumed>) = 3 [pid 5677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5682] set_robust_list(0x555566297660, 24 [pid 5681] write(3, "1000", 4 [pid 5679] memfd_create("syzkaller", 0 [pid 5678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5682 [pid 5682] <... set_robust_list resumed>) = 0 [pid 5681] <... write resumed>) = 4 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5681] close(3 [pid 5679] <... memfd_create resumed>) = 3 [pid 5678] <... mmap resumed>) = 0x7f9e50600000 [pid 5677] <... write resumed>) = 1048576 [pid 5682] <... prctl resumed>) = 0 [pid 5681] <... close resumed>) = 0 [pid 5679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5677] munmap(0x7f9e50600000, 138412032 [pid 5682] setpgid(0, 0 [pid 5681] memfd_create("syzkaller", 0 [pid 5679] <... mmap resumed>) = 0x7f9e50600000 [pid 5677] <... munmap resumed>) = 0 [pid 5682] <... setpgid resumed>) = 0 [pid 5681] <... memfd_create resumed>) = 3 [pid 5681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5678] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5677] close(3 [pid 5682] <... openat resumed>) = 3 [pid 5677] <... close resumed>) = 0 [pid 5682] write(3, "1000", 4 [pid 5681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5682] <... write resumed>) = 4 [pid 5678] <... write resumed>) = 1048576 [pid 5682] close(3 [pid 5681] <... write resumed>) = 1048576 [pid 5679] <... write resumed>) = 1048576 [pid 5678] munmap(0x7f9e50600000, 138412032 [pid 5677] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5682] <... close resumed>) = 0 [pid 5681] munmap(0x7f9e50600000, 138412032 [pid 5679] munmap(0x7f9e50600000, 138412032 [pid 5678] <... munmap resumed>) = 0 [pid 5677] <... openat resumed>) = 3 [pid 5682] memfd_create("syzkaller", 0 [pid 5681] <... munmap resumed>) = 0 [pid 5679] <... munmap resumed>) = 0 [pid 5678] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5682] <... memfd_create resumed>) = 3 [pid 5681] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5678] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5677] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5683 attached [pid 5682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5681] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5679] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5678] close(3 [pid 5682] <... mmap resumed>) = 0x7f9e50600000 [pid 5681] close(3 [pid 5679] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5679] close(3 [pid 5677] <... clone resumed>) = 5683 [pid 5677] ptrace(PTRACE_ATTACH, 5683) = -1 EPERM (Operation not permitted) [pid 5677] exit_group(0) = ? [pid 5677] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5681] <... close resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5684 attached , child_tidptr=0x555566297650) = 5684 [pid 5684] set_robust_list(0x555566297660, 24) = 0 [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5681] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5678] <... close resumed>) = 0 [pid 5684] setpgid(0, 0 [pid 5682] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5684] <... setpgid resumed>) = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] <... openat resumed>) = 3 [pid 5679] <... close resumed>) = 0 [pid 5678] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5681] clone(child_stack=NULL, flags=0 [pid 5679] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5684] write(3, "1000", 4 [pid 5679] <... openat resumed>) = 3 [pid 5678] <... openat resumed>) = 3 [pid 5684] <... write resumed>) = 4 [pid 5678] clone(child_stack=NULL, flags=0 [pid 5684] close(3) = 0 [pid 5679] clone(child_stack=NULL, flags=0 [pid 5684] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 5685 attached [pid 5684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5681] <... clone resumed>) = 5685 ./strace-static-x86_64: Process 5687 attached [pid 5684] <... mmap resumed>) = 0x7f9e50600000 [pid 5681] ptrace(PTRACE_ATTACH, 5685./strace-static-x86_64: Process 5686 attached [pid 5682] <... write resumed>) = 1048576 [pid 5681] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5678] <... clone resumed>) = 5687 [pid 5682] munmap(0x7f9e50600000, 138412032 [pid 5675] exit(0) = ? [pid 5676] exit(0 [pid 5684] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5682] <... munmap resumed>) = 0 [pid 5681] exit_group(0 [pid 5679] <... clone resumed>) = 5686 [pid 5678] ptrace(PTRACE_ATTACH, 5687 [pid 5676] <... exit resumed>) = ? [pid 5675] +++ exited with 0 +++ [pid 5674] exit(0 [pid 5684] <... write resumed>) = 1048576 [pid 5682] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5681] <... exit_group resumed>) = ? [pid 5679] ptrace(PTRACE_ATTACH, 5686 [pid 5678] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5673] exit(0 [pid 5674] <... exit resumed>) = ? [pid 5682] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5679] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5673] <... exit resumed>) = ? [pid 5678] exit_group(0 [pid 5679] exit_group(0 [pid 5673] +++ exited with 0 +++ [pid 5674] +++ exited with 0 +++ [pid 5678] <... exit_group resumed>) = ? [pid 5682] close(3 [pid 5681] +++ exited with 0 +++ [pid 5679] <... exit_group resumed>) = ? [pid 5678] +++ exited with 0 +++ [pid 5679] +++ exited with 0 +++ [pid 5676] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5678, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5684] munmap(0x7f9e50600000, 138412032 [pid 5682] <... close resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5684] <... munmap resumed>) = 0 [pid 5682] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5680] exit(0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5680] <... exit resumed>) = ? [pid 5089] <... restart_syscall resumed>) = 0 [pid 5684] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5093] <... restart_syscall resumed>) = 0 [pid 5684] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5682] <... openat resumed>) = 3 [pid 5684] close(3 [pid 5682] clone(child_stack=NULL, flags=0 [pid 5680] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5688 attached [pid 5684] <... close resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5684] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5682] <... clone resumed>) = 5688 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5689 attached [pid 5684] <... openat resumed>) = 3 [pid 5682] ptrace(PTRACE_ATTACH, 5688 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5689] set_robust_list(0x555566297660, 24 [pid 5684] clone(child_stack=NULL, flags=0 [pid 5682] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5689] <... set_robust_list resumed>) = 0 [pid 5682] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5689 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5690 attached [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] <... exit_group resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5690] set_robust_list(0x555566297660, 24./strace-static-x86_64: Process 5691 attached [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5690 ./strace-static-x86_64: Process 5692 attached [pid 5690] <... set_robust_list resumed>) = 0 [pid 5689] <... prctl resumed>) = 0 [pid 5684] <... clone resumed>) = 5691 [pid 5682] +++ exited with 0 +++ [pid 5692] set_robust_list(0x555566297660, 24 [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] setpgid(0, 0 [pid 5684] ptrace(PTRACE_ATTACH, 5691 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5692 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5682, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5692] <... set_robust_list resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5684] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5689] <... setpgid resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5684] exit_group(0 [pid 5690] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5693 attached [pid 5690] setpgid(0, 0 [pid 5684] <... exit_group resumed>) = ? [pid 5693] set_robust_list(0x555566297660, 24 [pid 5692] <... prctl resumed>) = 0 [pid 5690] <... setpgid resumed>) = 0 [pid 5689] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5693 [pid 5693] <... set_robust_list resumed>) = 0 [pid 5692] setpgid(0, 0 [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5689] write(3, "1000", 4 [pid 5684] +++ exited with 0 +++ [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5692] <... setpgid resumed>) = 0 [pid 5690] <... openat resumed>) = 3 [pid 5689] <... write resumed>) = 4 [pid 5693] <... prctl resumed>) = 0 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5690] write(3, "1000", 4 [pid 5689] close(3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5693] setpgid(0, 0 [pid 5692] <... openat resumed>) = 3 [pid 5690] <... write resumed>) = 4 [pid 5689] <... close resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5693] <... setpgid resumed>) = 0 [pid 5690] close(3 [pid 5689] memfd_create("syzkaller", 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5692] write(3, "1000", 4 [pid 5690] <... close resumed>) = 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5692] <... write resumed>) = 4 [pid 5690] memfd_create("syzkaller", 0 [pid 5689] <... memfd_create resumed>) = 3 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5694 attached [pid 5693] <... openat resumed>) = 3 [pid 5692] close(3 [pid 5693] write(3, "1000", 4 [pid 5692] <... close resumed>) = 0 [pid 5690] <... memfd_create resumed>) = 3 [pid 5689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5694] set_robust_list(0x555566297660, 24 [pid 5693] <... write resumed>) = 4 [pid 5694] <... set_robust_list resumed>) = 0 [pid 5693] close(3) = 0 [pid 5694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5692] memfd_create("syzkaller", 0 [pid 5689] <... mmap resumed>) = 0x7f9e50600000 [pid 5693] memfd_create("syzkaller", 0 [pid 5694] <... prctl resumed>) = 0 [pid 5693] <... memfd_create resumed>) = 3 [pid 5692] <... memfd_create resumed>) = 3 [pid 5690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5689] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5690] <... mmap resumed>) = 0x7f9e50600000 [pid 5692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5694 [pid 5692] <... mmap resumed>) = 0x7f9e50600000 [pid 5694] setpgid(0, 0 [pid 5693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5694] <... setpgid resumed>) = 0 [pid 5693] <... mmap resumed>) = 0x7f9e50600000 [pid 5690] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5692] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5694] <... openat resumed>) = 3 [pid 5693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5692] <... write resumed>) = 1048576 [pid 5694] write(3, "1000", 4) = 4 [pid 5683] exit(0 [pid 5694] close(3 [pid 5693] <... write resumed>) = 1048576 [pid 5692] munmap(0x7f9e50600000, 138412032 [pid 5690] <... write resumed>) = 1048576 [pid 5689] <... write resumed>) = 1048576 [pid 5683] <... exit resumed>) = ? [pid 5694] <... close resumed>) = 0 [pid 5689] munmap(0x7f9e50600000, 138412032 [pid 5694] memfd_create("syzkaller", 0 [pid 5693] munmap(0x7f9e50600000, 138412032 [pid 5692] <... munmap resumed>) = 0 [pid 5690] munmap(0x7f9e50600000, 138412032 [pid 5683] +++ exited with 0 +++ [pid 5694] <... memfd_create resumed>) = 3 [pid 5693] <... munmap resumed>) = 0 [pid 5692] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5690] <... munmap resumed>) = 0 [pid 5689] <... munmap resumed>) = 0 [pid 5685] exit(0 [pid 5694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5690] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5694] <... mmap resumed>) = 0x7f9e50600000 [pid 5692] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5690] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5685] <... exit resumed>) = ? [pid 5692] close(3 [pid 5693] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5693] close(3 [pid 5689] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5694] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5693] <... close resumed>) = 0 [pid 5690] close(3 [pid 5689] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5685] +++ exited with 0 +++ [pid 5692] <... close resumed>) = 0 [pid 5687] exit(0) = ? [pid 5689] close(3 [pid 5686] exit(0) = ? [pid 5687] +++ exited with 0 +++ [pid 5690] <... close resumed>) = 0 [pid 5686] +++ exited with 0 +++ [pid 5690] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5693] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5694] <... write resumed>) = 1048576 [pid 5693] <... openat resumed>) = 3 [pid 5692] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5690] <... openat resumed>) = 3 [pid 5689] <... close resumed>) = 0 [pid 5694] munmap(0x7f9e50600000, 138412032 [pid 5693] clone(child_stack=NULL, flags=0 [pid 5692] <... openat resumed>) = 3 [pid 5690] clone(child_stack=NULL, flags=0 [pid 5689] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5695 attached [pid 5694] <... munmap resumed>) = 0 [pid 5692] clone(child_stack=NULL, flags=0 [pid 5689] <... openat resumed>) = 3 [pid 5694] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5689] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5697 attached [pid 5694] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5694] close(3 [pid 5693] <... clone resumed>) = 5695 [pid 5690] <... clone resumed>) = 5696 ./strace-static-x86_64: Process 5696 attached [pid 5693] ptrace(PTRACE_ATTACH, 5695) = -1 EPERM (Operation not permitted) [pid 5692] <... clone resumed>) = 5697 [pid 5693] exit_group(0 [pid 5692] ptrace(PTRACE_ATTACH, 5697 [pid 5690] ptrace(PTRACE_ATTACH, 5696./strace-static-x86_64: Process 5698 attached [pid 5693] <... exit_group resumed>) = ? [pid 5692] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5690] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5694] <... close resumed>) = 0 [pid 5693] +++ exited with 0 +++ [pid 5692] exit_group(0 [pid 5690] exit_group(0 [pid 5689] <... clone resumed>) = 5698 [pid 5694] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5692] <... exit_group resumed>) = ? [pid 5691] exit(0 [pid 5690] <... exit_group resumed>) = ? [pid 5689] ptrace(PTRACE_ATTACH, 5698 [pid 5688] exit(0 [pid 5694] <... openat resumed>) = 3 [pid 5692] +++ exited with 0 +++ [pid 5691] <... exit resumed>) = ? [pid 5690] +++ exited with 0 +++ [pid 5689] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5694] clone(child_stack=NULL, flags=0 [pid 5691] +++ exited with 0 +++ [pid 5689] exit_group(0 [pid 5688] <... exit resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5689] <... exit_group resumed>) = ? [pid 5689] +++ exited with 0 +++ [pid 5688] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... restart_syscall resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5700 attached ./strace-static-x86_64: Process 5699 attached [pid 5694] <... clone resumed>) = 5699 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5700] set_robust_list(0x555566297660, 24 [pid 5694] ptrace(PTRACE_ATTACH, 5699 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5701 attached [pid 5700] <... set_robust_list resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5700 [pid 5701] set_robust_list(0x555566297660, 24 [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5694] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5701 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5701] <... set_robust_list resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5700] <... prctl resumed>) = 0 [pid 5694] exit_group(0 [pid 5700] setpgid(0, 0) = 0 [pid 5694] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5702 attached [pid 5701] <... prctl resumed>) = 0 [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5702] set_robust_list(0x555566297660, 24 [pid 5701] setpgid(0, 0 [pid 5694] +++ exited with 0 +++ ./strace-static-x86_64: Process 5703 attached [pid 5702] <... set_robust_list resumed>) = 0 [pid 5701] <... setpgid resumed>) = 0 [pid 5700] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5702 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5694, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5700] write(3, "1000", 4 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5703] set_robust_list(0x555566297660, 24 [pid 5700] <... write resumed>) = 4 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] close(3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5703 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5703] <... set_robust_list resumed>) = 0 [pid 5702] <... prctl resumed>) = 0 [pid 5701] <... openat resumed>) = 3 [pid 5700] <... close resumed>) = 0 [pid 5702] setpgid(0, 0 [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5702] <... setpgid resumed>) = 0 [pid 5701] write(3, "1000", 4 [pid 5700] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5704 attached [pid 5704] set_robust_list(0x555566297660, 24 [pid 5701] <... write resumed>) = 4 [pid 5704] <... set_robust_list resumed>) = 0 [pid 5700] <... memfd_create resumed>) = 3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5704 [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5703] <... prctl resumed>) = 0 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5701] close(3 [pid 5700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5704] <... prctl resumed>) = 0 [pid 5701] <... close resumed>) = 0 [pid 5700] <... mmap resumed>) = 0x7f9e50600000 [pid 5703] setpgid(0, 0 [pid 5704] setpgid(0, 0 [pid 5703] <... setpgid resumed>) = 0 [pid 5702] <... openat resumed>) = 3 [pid 5701] memfd_create("syzkaller", 0 [pid 5700] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5704] <... setpgid resumed>) = 0 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5702] write(3, "1000", 4 [pid 5701] <... memfd_create resumed>) = 3 [pid 5702] <... write resumed>) = 4 [pid 5704] <... openat resumed>) = 3 [pid 5703] <... openat resumed>) = 3 [pid 5702] close(3 [pid 5701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5704] write(3, "1000", 4) = 4 [pid 5701] <... mmap resumed>) = 0x7f9e50600000 [pid 5704] close(3) = 0 [pid 5702] <... close resumed>) = 0 [pid 5704] memfd_create("syzkaller", 0) = 3 [pid 5704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5704] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5703] write(3, "1000", 4 [pid 5702] memfd_create("syzkaller", 0 [pid 5701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5703] <... write resumed>) = 4 [pid 5702] <... memfd_create resumed>) = 3 [pid 5703] close(3) = 0 [pid 5703] memfd_create("syzkaller", 0) = 3 [pid 5702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5702] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5700] <... write resumed>) = 1048576 [pid 5703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5701] <... write resumed>) = 1048576 [pid 5700] munmap(0x7f9e50600000, 138412032) = 0 [pid 5700] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5700] close(3 [pid 5703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5701] munmap(0x7f9e50600000, 138412032) = 0 [pid 5701] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5704] <... write resumed>) = 1048576 [pid 5704] munmap(0x7f9e50600000, 138412032 [pid 5701] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5704] <... munmap resumed>) = 0 [pid 5701] close(3 [pid 5700] <... close resumed>) = 0 [pid 5704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5703] <... write resumed>) = 1048576 [pid 5702] <... write resumed>) = 1048576 [pid 5701] <... close resumed>) = 0 [pid 5700] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5704] close(3 [pid 5703] munmap(0x7f9e50600000, 138412032 [pid 5702] munmap(0x7f9e50600000, 138412032 [pid 5701] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5700] <... openat resumed>) = 3 [pid 5704] <... close resumed>) = 0 [pid 5703] <... munmap resumed>) = 0 [pid 5702] <... munmap resumed>) = 0 [pid 5701] <... openat resumed>) = 3 [pid 5703] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5700] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5705 attached [pid 5703] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5704] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5703] close(3 [pid 5702] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5701] clone(child_stack=NULL, flags=0 [pid 5700] <... clone resumed>) = 5705 [pid 5704] <... openat resumed>) = 3 [pid 5702] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5702] close(3./strace-static-x86_64: Process 5706 attached [pid 5700] ptrace(PTRACE_ATTACH, 5705) = -1 EPERM (Operation not permitted) [pid 5701] <... clone resumed>) = 5706 [pid 5700] exit_group(0 [pid 5701] ptrace(PTRACE_ATTACH, 5706) = -1 EPERM (Operation not permitted) [pid 5700] <... exit_group resumed>) = ? [pid 5701] exit_group(0) = ? [pid 5696] exit(0) = ? [pid 5704] clone(child_stack=NULL, flags=0 [pid 5700] +++ exited with 0 +++ [pid 5697] exit(0 [pid 5695] exit(0 [pid 5697] <... exit resumed>) = ? [pid 5696] +++ exited with 0 +++ [pid 5695] <... exit resumed>) = ? ./strace-static-x86_64: Process 5707 attached [pid 5703] <... close resumed>) = 0 [pid 5702] <... close resumed>) = 0 [pid 5701] +++ exited with 0 +++ [pid 5697] +++ exited with 0 +++ [pid 5695] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5704] <... clone resumed>) = 5707 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5703] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5702] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5704] ptrace(PTRACE_ATTACH, 5707 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5708 attached [pid 5704] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5703] <... openat resumed>) = 3 [pid 5702] <... openat resumed>) = 3 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5704] exit_group(0 [pid 5698] exit(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5708 [pid 5708] set_robust_list(0x555566297660, 24 [pid 5704] <... exit_group resumed>) = ? [pid 5702] clone(child_stack=NULL, flags=0 [pid 5698] <... exit resumed>) = ? [pid 5703] clone(child_stack=NULL, flags=0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5709 attached [pid 5698] +++ exited with 0 +++ [pid 5709] set_robust_list(0x555566297660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5709 ./strace-static-x86_64: Process 5710 attached [pid 5709] <... set_robust_list resumed>) = 0 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5704] +++ exited with 0 +++ [pid 5709] setpgid(0, 0 [pid 5708] <... set_robust_list resumed>) = 0 [pid 5709] <... setpgid resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5711 attached ./strace-static-x86_64: Process 5712 attached [pid 5708] setpgid(0, 0 [pid 5703] <... clone resumed>) = 5710 [pid 5708] <... setpgid resumed>) = 0 [pid 5703] ptrace(PTRACE_ATTACH, 5710 [pid 5709] <... openat resumed>) = 3 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5703] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5702] <... clone resumed>) = 5711 [pid 5709] write(3, "1000", 4) = 4 [pid 5708] <... openat resumed>) = 3 [pid 5709] close(3) = 0 [pid 5703] exit_group(0 [pid 5712] set_robust_list(0x555566297660, 24 [pid 5709] memfd_create("syzkaller", 0 [pid 5708] write(3, "1000", 4 [pid 5703] <... exit_group resumed>) = ? [pid 5702] ptrace(PTRACE_ATTACH, 5711 [pid 5712] <... set_robust_list resumed>) = 0 [pid 5709] <... memfd_create resumed>) = 3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5712 [pid 5709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5708] <... write resumed>) = 4 [pid 5702] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5709] <... mmap resumed>) = 0x7f9e50600000 [pid 5708] close(3 [pid 5702] exit_group(0 [pid 5712] <... prctl resumed>) = 0 [pid 5709] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5708] <... close resumed>) = 0 [pid 5703] +++ exited with 0 +++ [pid 5702] <... exit_group resumed>) = ? [pid 5712] setpgid(0, 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5712] <... setpgid resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5699] exit(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5699] <... exit resumed>) = ? [pid 5712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5702] +++ exited with 0 +++ [pid 5708] memfd_create("syzkaller", 0 [pid 5699] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5708] <... memfd_create resumed>) = 3 [pid 5708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5712] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5713 attached [pid 5708] <... mmap resumed>) = 0x7f9e50600000 [pid 5712] write(3, "1000", 4 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5713 [pid 5712] <... write resumed>) = 4 [pid 5713] set_robust_list(0x555566297660, 24 [pid 5712] close(3 [pid 5713] <... set_robust_list resumed>) = 0 [pid 5712] <... close resumed>) = 0 [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5712] memfd_create("syzkaller", 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5713] <... prctl resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5713] setpgid(0, 0 [pid 5712] <... memfd_create resumed>) = 3 [pid 5713] <... setpgid resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5714 attached [pid 5713] <... openat resumed>) = 3 [pid 5712] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5709] <... write resumed>) = 1048576 [pid 5708] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5714] set_robust_list(0x555566297660, 24 [pid 5709] munmap(0x7f9e50600000, 138412032 [pid 5714] <... set_robust_list resumed>) = 0 [pid 5709] <... munmap resumed>) = 0 [pid 5714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5714] setpgid(0, 0 [pid 5713] write(3, "1000", 4 [pid 5714] <... setpgid resumed>) = 0 [pid 5714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5713] <... write resumed>) = 4 [pid 5714] <... openat resumed>) = 3 [pid 5713] close(3 [pid 5709] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5714] write(3, "1000", 4 [pid 5713] <... close resumed>) = 0 [pid 5709] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5714 [pid 5714] <... write resumed>) = 4 [pid 5714] close(3 [pid 5713] memfd_create("syzkaller", 0 [pid 5709] close(3 [pid 5714] <... close resumed>) = 0 [pid 5714] memfd_create("syzkaller", 0 [pid 5713] <... memfd_create resumed>) = 3 [pid 5714] <... memfd_create resumed>) = 3 [pid 5714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5714] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5709] <... close resumed>) = 0 [pid 5709] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5709] clone(child_stack=NULL, flags=0 [pid 5713] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5709] <... clone resumed>) = 5715 [pid 5709] ptrace(PTRACE_ATTACH, 5715./strace-static-x86_64: Process 5715 attached [pid 5714] <... write resumed>) = 1048576 [pid 5712] <... write resumed>) = 1048576 [pid 5709] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5708] <... write resumed>) = 1048576 [pid 5714] munmap(0x7f9e50600000, 138412032 [pid 5712] munmap(0x7f9e50600000, 138412032 [pid 5709] exit_group(0 [pid 5708] munmap(0x7f9e50600000, 138412032 [pid 5714] <... munmap resumed>) = 0 [pid 5709] <... exit_group resumed>) = ? [pid 5708] <... munmap resumed>) = 0 [pid 5712] <... munmap resumed>) = 0 [pid 5708] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5714] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5709] +++ exited with 0 +++ [pid 5708] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5714] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5712] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5708] close(3 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5714] close(3 [pid 5712] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5712] close(3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5716 attached [pid 5714] <... close resumed>) = 0 [pid 5713] <... write resumed>) = 1048576 [pid 5712] <... close resumed>) = 0 [pid 5716] set_robust_list(0x555566297660, 24) = 0 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5716] setpgid(0, 0) = 0 [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5716 [pid 5713] munmap(0x7f9e50600000, 138412032 [pid 5716] <... openat resumed>) = 3 [pid 5716] write(3, "1000", 4) = 4 [pid 5716] close(3) = 0 [pid 5713] <... munmap resumed>) = 0 [pid 5716] memfd_create("syzkaller", 0) = 3 [pid 5716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5716] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5714] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5713] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5712] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5708] <... close resumed>) = 0 [pid 5713] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5714] <... openat resumed>) = 3 [pid 5713] close(3 [pid 5712] <... openat resumed>) = 3 [pid 5708] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5714] clone(child_stack=NULL, flags=0 [pid 5706] exit(0) = ? [pid 5713] <... close resumed>) = 0 [pid 5712] clone(child_stack=NULL, flags=0 [pid 5708] <... openat resumed>) = 3 [pid 5706] +++ exited with 0 +++ [pid 5705] exit(0./strace-static-x86_64: Process 5717 attached [pid 5708] clone(child_stack=NULL, flags=0 [pid 5705] <... exit resumed>) = ? [pid 5714] <... clone resumed>) = 5717 [pid 5714] ptrace(PTRACE_ATTACH, 5717) = -1 EPERM (Operation not permitted) [pid 5714] exit_group(0 [pid 5705] +++ exited with 0 +++ [pid 5714] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5718 attached [pid 5708] <... clone resumed>) = 5718 ./strace-static-x86_64: Process 5719 attached [pid 5716] <... write resumed>) = 1048576 [pid 5714] +++ exited with 0 +++ [pid 5713] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5712] <... clone resumed>) = 5719 [pid 5708] ptrace(PTRACE_ATTACH, 5718 [pid 5716] munmap(0x7f9e50600000, 138412032 [pid 5712] ptrace(PTRACE_ATTACH, 5719 [pid 5708] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5707] exit(0 [pid 5716] <... munmap resumed>) = 0 [pid 5713] <... openat resumed>) = 3 [pid 5712] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5707] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5714, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5712] exit_group(0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5713] clone(child_stack=NULL, flags=0 [pid 5712] <... exit_group resumed>) = ? [pid 5093] <... restart_syscall resumed>) = 0 [pid 5710] exit(0 [pid 5708] exit_group(0 [pid 5707] +++ exited with 0 +++ [pid 5716] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5710] <... exit resumed>) = ? [pid 5716] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5712] +++ exited with 0 +++ [pid 5710] +++ exited with 0 +++ [pid 5708] <... exit_group resumed>) = ? [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5712, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5716] close(3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5720 attached [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5721 attached [pid 5713] <... clone resumed>) = 5720 [pid 5708] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5721] set_robust_list(0x555566297660, 24 [pid 5713] ptrace(PTRACE_ATTACH, 5720 [pid 5711] exit(0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5713] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5711] <... exit resumed>) = ? [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5721] <... set_robust_list resumed>) = 0 [pid 5713] exit_group(0 [pid 5711] +++ exited with 0 +++ [pid 5088] <... restart_syscall resumed>) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5713] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5722 ./strace-static-x86_64: Process 5722 attached [pid 5722] set_robust_list(0x555566297660, 24 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5721 [pid 5722] <... set_robust_list resumed>) = 0 [pid 5722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5713] +++ exited with 0 +++ [pid 5721] <... prctl resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5722] <... prctl resumed>) = 0 [pid 5722] setpgid(0, 0 [pid 5721] setpgid(0, 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5722] <... setpgid resumed>) = 0 [pid 5721] <... setpgid resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5716] <... close resumed>) = 0 [pid 5716] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5723 attached [pid 5722] write(3, "1000", 4 [pid 5716] <... openat resumed>) = 3 [pid 5722] <... write resumed>) = 4 [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5723] set_robust_list(0x555566297660, 24) = 0 [pid 5722] close(3 [pid 5716] clone(child_stack=NULL, flags=0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5724 attached [pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5722] <... close resumed>) = 0 [pid 5721] <... openat resumed>) = 3 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5723 [pid 5722] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5725 attached [pid 5723] <... prctl resumed>) = 0 [pid 5722] <... memfd_create resumed>) = 3 [pid 5721] write(3, "1000", 4 [pid 5716] <... clone resumed>) = 5724 [pid 5725] set_robust_list(0x555566297660, 24 [pid 5723] setpgid(0, 0 [pid 5722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5721] <... write resumed>) = 4 [pid 5716] ptrace(PTRACE_ATTACH, 5724 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5725 [pid 5725] <... set_robust_list resumed>) = 0 [pid 5723] <... setpgid resumed>) = 0 [pid 5722] <... mmap resumed>) = 0x7f9e50600000 [pid 5721] close(3 [pid 5716] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5721] <... close resumed>) = 0 [pid 5716] exit_group(0 [pid 5721] memfd_create("syzkaller", 0 [pid 5716] <... exit_group resumed>) = ? [pid 5725] <... prctl resumed>) = 0 [pid 5723] <... openat resumed>) = 3 [pid 5721] <... memfd_create resumed>) = 3 [pid 5716] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5716, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5725] setpgid(0, 0) = 0 [pid 5723] write(3, "1000", 4 [pid 5721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5723] <... write resumed>) = 4 [pid 5721] <... mmap resumed>) = 0x7f9e50600000 [pid 5723] close(3) = 0 [pid 5722] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5721] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5723] memfd_create("syzkaller", 0 [pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5723] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5726 attached [pid 5725] <... openat resumed>) = 3 [pid 5723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5726] set_robust_list(0x555566297660, 24 [pid 5725] write(3, "1000", 4 [pid 5723] <... mmap resumed>) = 0x7f9e50600000 [pid 5722] <... write resumed>) = 1048576 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5726 [pid 5726] <... set_robust_list resumed>) = 0 [pid 5725] <... write resumed>) = 4 [pid 5725] close(3 [pid 5726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5722] munmap(0x7f9e50600000, 138412032 [pid 5726] <... prctl resumed>) = 0 [pid 5725] <... close resumed>) = 0 [pid 5726] setpgid(0, 0 [pid 5725] memfd_create("syzkaller", 0 [pid 5726] <... setpgid resumed>) = 0 [pid 5725] <... memfd_create resumed>) = 3 [pid 5722] <... munmap resumed>) = 0 [pid 5726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5721] <... write resumed>) = 1048576 [pid 5726] <... openat resumed>) = 3 [pid 5725] <... mmap resumed>) = 0x7f9e50600000 [pid 5722] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5726] write(3, "1000", 4 [pid 5722] close(3 [pid 5726] <... write resumed>) = 4 [pid 5726] close(3 [pid 5722] <... close resumed>) = 0 [pid 5721] munmap(0x7f9e50600000, 138412032 [pid 5726] <... close resumed>) = 0 [pid 5726] memfd_create("syzkaller", 0) = 3 [pid 5725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5722] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5721] <... munmap resumed>) = 0 [pid 5726] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5722] <... openat resumed>) = 3 [pid 5726] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5721] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5715] exit(0 [pid 5722] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5727 attached [pid 5723] <... write resumed>) = 1048576 [pid 5715] <... exit resumed>) = ? [pid 5723] munmap(0x7f9e50600000, 138412032 [pid 5725] <... write resumed>) = 1048576 [pid 5723] <... munmap resumed>) = 0 [pid 5715] +++ exited with 0 +++ [pid 5723] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5721] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5721] close(3 [pid 5723] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5722] <... clone resumed>) = 5727 [pid 5723] close(3 [pid 5721] <... close resumed>) = 0 [pid 5722] ptrace(PTRACE_ATTACH, 5727 [pid 5723] <... close resumed>) = 0 [pid 5723] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5722] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5722] exit_group(0) = ? [pid 5723] <... openat resumed>) = 3 [pid 5722] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5722, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5723] clone(child_stack=NULL, flags=0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5725] munmap(0x7f9e50600000, 138412032) = 0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5717] exit(0) = ? ./strace-static-x86_64: Process 5728 attached [pid 5717] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5723] <... clone resumed>) = 5728 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5725] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5723] ptrace(PTRACE_ATTACH, 5728 [pid 5725] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5725] close(3./strace-static-x86_64: Process 5729 attached ) = 0 [pid 5723] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5723] exit_group(0) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5729 [pid 5729] set_robust_list(0x555566297660, 24 [pid 5721] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5723] +++ exited with 0 +++ [pid 5729] <... set_robust_list resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5718] exit(0 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5729] <... prctl resumed>) = 0 [pid 5718] <... exit resumed>) = ? [pid 5729] setpgid(0, 0 [pid 5725] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5721] <... openat resumed>) = 3 [pid 5729] <... setpgid resumed>) = 0 [pid 5726] <... write resumed>) = 1048576 [pid 5725] <... openat resumed>) = 3 [pid 5718] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5721] clone(child_stack=NULL, flags=0 [pid 5719] exit(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5730 attached [pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5719] <... exit resumed>) = ? [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5731 attached [pid 5729] <... openat resumed>) = 3 [pid 5719] +++ exited with 0 +++ [pid 5725] clone(child_stack=NULL, flags=0 [pid 5721] <... clone resumed>) = 5730 ./strace-static-x86_64: Process 5732 attached [pid 5731] set_robust_list(0x555566297660, 24 [pid 5729] write(3, "1000", 4 [pid 5726] munmap(0x7f9e50600000, 138412032 [pid 5721] ptrace(PTRACE_ATTACH, 5730 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5731 [pid 5731] <... set_robust_list resumed>) = 0 [pid 5729] <... write resumed>) = 4 [pid 5726] <... munmap resumed>) = 0 [pid 5720] exit(0 [pid 5729] close(3) = 0 [pid 5721] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5725] <... clone resumed>) = 5732 [pid 5721] exit_group(0 [pid 5720] <... exit resumed>) = ? [pid 5726] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5725] ptrace(PTRACE_ATTACH, 5732 [pid 5721] <... exit_group resumed>) = ? [pid 5729] memfd_create("syzkaller", 0 [pid 5726] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5725] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5721] +++ exited with 0 +++ [pid 5720] +++ exited with 0 +++ [pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5726] close(3 [pid 5725] exit_group(0 [pid 5731] <... prctl resumed>) = 0 [pid 5729] <... memfd_create resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5731] setpgid(0, 0 [pid 5729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5725] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5731] <... setpgid resumed>) = 0 [pid 5729] <... mmap resumed>) = 0x7f9e50600000 [pid 5726] <... close resumed>) = 0 [pid 5725] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5733 attached [pid 5731] <... openat resumed>) = 3 [pid 5731] write(3, "1000", 4) = 4 [pid 5731] close(3 [pid 5733] set_robust_list(0x555566297660, 24 [pid 5731] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5733 [pid 5733] <... set_robust_list resumed>) = 0 [pid 5731] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5731] <... memfd_create resumed>) = 3 [pid 5726] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5733] <... prctl resumed>) = 0 [pid 5731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5726] <... openat resumed>) = 3 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5734 attached [pid 5733] setpgid(0, 0 [pid 5731] <... mmap resumed>) = 0x7f9e50600000 [pid 5729] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5733] <... setpgid resumed>) = 0 [pid 5726] clone(child_stack=NULL, flags=0 [pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5734 [pid 5733] write(3, "1000", 4./strace-static-x86_64: Process 5735 attached ) = 4 [pid 5733] close(3 [pid 5726] <... clone resumed>) = 5735 [pid 5733] <... close resumed>) = 0 [pid 5726] ptrace(PTRACE_ATTACH, 5735 [pid 5733] memfd_create("syzkaller", 0 [pid 5726] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5734] set_robust_list(0x555566297660, 24 [pid 5733] <... memfd_create resumed>) = 3 [pid 5729] <... write resumed>) = 1048576 [pid 5734] <... set_robust_list resumed>) = 0 [pid 5726] exit_group(0 [pid 5733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5726] <... exit_group resumed>) = ? [pid 5733] <... mmap resumed>) = 0x7f9e50600000 [pid 5726] +++ exited with 0 +++ [pid 5734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5729] munmap(0x7f9e50600000, 138412032 [pid 5724] exit(0 [pid 5734] <... prctl resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5726, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5736 attached [pid 5736] set_robust_list(0x555566297660, 24) = 0 [pid 5736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5736] setpgid(0, 0 [pid 5734] setpgid(0, 0 [pid 5731] <... write resumed>) = 1048576 [pid 5724] <... exit resumed>) = ? [pid 5736] <... setpgid resumed>) = 0 [pid 5734] <... setpgid resumed>) = 0 [pid 5729] <... munmap resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5736 [pid 5736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5731] munmap(0x7f9e50600000, 138412032 [pid 5729] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5724] +++ exited with 0 +++ [pid 5736] <... openat resumed>) = 3 [pid 5734] <... openat resumed>) = 3 [pid 5733] <... write resumed>) = 1048576 [pid 5731] <... munmap resumed>) = 0 [pid 5729] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5729] close(3 [pid 5736] write(3, "1000", 4 [pid 5734] write(3, "1000", 4 [pid 5733] munmap(0x7f9e50600000, 138412032 [pid 5731] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5736] <... write resumed>) = 4 [pid 5734] <... write resumed>) = 4 [pid 5733] <... munmap resumed>) = 0 [pid 5731] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5736] close(3) = 0 [pid 5734] close(3 [pid 5729] <... close resumed>) = 0 [pid 5736] memfd_create("syzkaller", 0 [pid 5734] <... close resumed>) = 0 [pid 5733] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5731] close(3 [pid 5729] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5736] <... memfd_create resumed>) = 3 [pid 5734] memfd_create("syzkaller", 0 [pid 5736] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5733] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5736] <... mmap resumed>) = 0x7f9e50600000 [pid 5734] <... memfd_create resumed>) = 3 [pid 5733] close(3 [pid 5729] <... openat resumed>) = 3 [pid 5729] clone(child_stack=NULL, flags=0 [pid 5734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5737 attached [pid 5736] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5734] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5733] <... close resumed>) = 0 [pid 5731] <... close resumed>) = 0 [pid 5729] <... clone resumed>) = 5737 [pid 5729] ptrace(PTRACE_ATTACH, 5737 [pid 5727] exit(0 [pid 5733] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5729] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5727] <... exit resumed>) = ? [pid 5734] <... write resumed>) = 1048576 [pid 5729] exit_group(0 [pid 5727] +++ exited with 0 +++ [pid 5733] <... openat resumed>) = 3 [pid 5731] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5729] <... exit_group resumed>) = ? [pid 5736] <... write resumed>) = 1048576 [pid 5734] munmap(0x7f9e50600000, 138412032 [pid 5733] clone(child_stack=NULL, flags=0 [pid 5731] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5738 attached [pid 5736] munmap(0x7f9e50600000, 138412032 [pid 5734] <... munmap resumed>) = 0 [pid 5731] clone(child_stack=NULL, flags=0 [pid 5729] +++ exited with 0 +++ ./strace-static-x86_64: Process 5739 attached [pid 5736] <... munmap resumed>) = 0 [pid 5733] <... clone resumed>) = 5738 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5736] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5734] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5733] ptrace(PTRACE_ATTACH, 5738 [pid 5731] <... clone resumed>) = 5739 [pid 5736] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5734] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5733] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5731] ptrace(PTRACE_ATTACH, 5739 [pid 5728] exit(0 [pid 5736] close(3 [pid 5734] close(3 [pid 5733] exit_group(0 [pid 5731] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5728] <... exit resumed>) = ? [pid 5736] <... close resumed>) = 0 [pid 5733] <... exit_group resumed>) = ? [pid 5731] exit_group(0 [pid 5733] +++ exited with 0 +++ [pid 5731] <... exit_group resumed>) = ? [pid 5728] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5731] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5736] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5736] <... openat resumed>) = 3 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5741 attached [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5741 [pid 5730] exit(0) = ? ./strace-static-x86_64: Process 5742 attached ./strace-static-x86_64: Process 5740 attached [pid 5741] set_robust_list(0x555566297660, 24 [pid 5736] clone(child_stack=NULL, flags=0 [pid 5734] <... close resumed>) = 0 [pid 5730] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5740 [pid 5742] set_robust_list(0x555566297660, 24 [pid 5741] <... set_robust_list resumed>) = 0 [pid 5740] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5742 [pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5742] <... set_robust_list resumed>) = 0 [pid 5734] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5741] <... prctl resumed>) = 0 [pid 5741] setpgid(0, 0 [pid 5734] <... openat resumed>) = 3 [pid 5741] <... setpgid resumed>) = 0 [pid 5740] <... set_robust_list resumed>) = 0 [pid 5742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5734] clone(child_stack=NULL, flags=0 [pid 5732] exit(0) = ? ./strace-static-x86_64: Process 5743 attached [pid 5742] <... prctl resumed>) = 0 [pid 5741] <... openat resumed>) = 3 [pid 5740] <... prctl resumed>) = 0 [pid 5732] +++ exited with 0 +++ [pid 5740] setpgid(0, 0 [pid 5742] setpgid(0, 0 [pid 5736] <... clone resumed>) = 5743 [pid 5740] <... setpgid resumed>) = 0 [pid 5736] ptrace(PTRACE_ATTACH, 5743 [pid 5742] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5744 attached [pid 5741] write(3, "1000", 4 [pid 5736] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5736] exit_group(0 [pid 5734] <... clone resumed>) = 5744 [pid 5742] <... openat resumed>) = 3 [pid 5734] ptrace(PTRACE_ATTACH, 5744 [pid 5741] <... write resumed>) = 4 [pid 5741] close(3 [pid 5740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5734] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5742] write(3, "1000", 4 [pid 5741] <... close resumed>) = 0 [pid 5736] <... exit_group resumed>) = ? [pid 5742] <... write resumed>) = 4 [pid 5734] exit_group(0 [pid 5742] close(3 [pid 5734] <... exit_group resumed>) = ? [pid 5742] <... close resumed>) = 0 [pid 5742] memfd_create("syzkaller", 0 [pid 5741] memfd_create("syzkaller", 0 [pid 5740] <... openat resumed>) = 3 [pid 5736] +++ exited with 0 +++ [pid 5734] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5736, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5741] <... memfd_create resumed>) = 3 [pid 5740] write(3, "1000", 4 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5734, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5740] <... write resumed>) = 4 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5090] <... restart_syscall resumed>) = 0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5740] close(3 [pid 5742] <... memfd_create resumed>) = 3 [pid 5741] <... mmap resumed>) = 0x7f9e50600000 [pid 5740] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5740] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5742] <... mmap resumed>) = 0x7f9e50600000 [pid 5735] exit(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5735] <... exit resumed>) = ? [pid 5740] <... memfd_create resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5745 attached ./strace-static-x86_64: Process 5746 attached [pid 5745] set_robust_list(0x555566297660, 24 [pid 5742] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5735] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5745 [pid 5746] set_robust_list(0x555566297660, 24 [pid 5745] <... set_robust_list resumed>) = 0 [pid 5740] <... mmap resumed>) = 0x7f9e50600000 [pid 5746] <... set_robust_list resumed>) = 0 [pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5745] <... prctl resumed>) = 0 [pid 5745] setpgid(0, 0 [pid 5746] <... prctl resumed>) = 0 [pid 5745] <... setpgid resumed>) = 0 [pid 5746] setpgid(0, 0) = 0 [pid 5746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5746] <... openat resumed>) = 3 [pid 5745] write(3, "1000", 4) = 4 [pid 5746] write(3, "1000", 4 [pid 5745] close(3 [pid 5741] <... write resumed>) = 1048576 [pid 5740] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5746 [pid 5746] <... write resumed>) = 4 [pid 5745] <... close resumed>) = 0 [pid 5742] <... write resumed>) = 1048576 [pid 5741] munmap(0x7f9e50600000, 138412032 [pid 5746] close(3 [pid 5745] memfd_create("syzkaller", 0 [pid 5742] munmap(0x7f9e50600000, 138412032 [pid 5746] <... close resumed>) = 0 [pid 5745] <... memfd_create resumed>) = 3 [pid 5742] <... munmap resumed>) = 0 [pid 5746] memfd_create("syzkaller", 0 [pid 5745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5741] <... munmap resumed>) = 0 [pid 5746] <... memfd_create resumed>) = 3 [pid 5745] <... mmap resumed>) = 0x7f9e50600000 [pid 5742] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5741] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5742] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5741] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5742] close(3 [pid 5741] close(3 [pid 5742] <... close resumed>) = 0 [pid 5746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5745] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5746] <... mmap resumed>) = 0x7f9e50600000 [pid 5742] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5746] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5745] <... write resumed>) = 1048576 [pid 5742] <... openat resumed>) = 3 [pid 5741] <... close resumed>) = 0 [pid 5740] <... write resumed>) = 1048576 [pid 5745] munmap(0x7f9e50600000, 138412032 [pid 5741] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5745] <... munmap resumed>) = 0 [pid 5742] clone(child_stack=NULL, flags=0 [pid 5741] <... openat resumed>) = 3 [pid 5740] munmap(0x7f9e50600000, 138412032 [pid 5737] exit(0) = ? [pid 5737] +++ exited with 0 +++ [pid 5741] clone(child_stack=NULL, flags=0 [pid 5740] <... munmap resumed>) = 0 [pid 5745] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5748 attached ) = -1 EBUSY (Device or resource busy) [pid 5740] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5745] close(3 [pid 5742] <... clone resumed>) = 5748 [pid 5740] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5746] <... write resumed>) = 1048576 [pid 5741] <... clone resumed>) = 5747 [pid 5742] ptrace(PTRACE_ATTACH, 5748 [pid 5741] ptrace(PTRACE_ATTACH, 5747 [pid 5742] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5741] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5740] close(3 [pid 5742] exit_group(0 [pid 5741] exit_group(0./strace-static-x86_64: Process 5747 attached [pid 5742] <... exit_group resumed>) = ? [pid 5746] munmap(0x7f9e50600000, 138412032 [pid 5742] +++ exited with 0 +++ [pid 5738] exit(0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5741] <... exit_group resumed>) = ? [pid 5739] exit(0 [pid 5738] <... exit resumed>) = ? [pid 5746] <... munmap resumed>) = 0 [pid 5745] <... close resumed>) = 0 [pid 5741] +++ exited with 0 +++ [pid 5739] <... exit resumed>) = ? [pid 5740] <... close resumed>) = 0 [pid 5746] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5745] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5739] +++ exited with 0 +++ [pid 5738] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5746] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5745] <... openat resumed>) = 3 [pid 5740] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5746] close(3 [pid 5745] clone(child_stack=NULL, flags=0 [pid 5740] <... openat resumed>) = 3 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5749 attached [pid 5749] set_robust_list(0x555566297660, 24) = 0 [pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5749] setpgid(0, 0) = 0 [pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5750 attached [pid 5740] clone(child_stack=NULL, flags=0 [pid 5749] write(3, "1000", 4 [pid 5745] <... clone resumed>) = 5750 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5749 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5749] <... write resumed>) = 4 [pid 5745] ptrace(PTRACE_ATTACH, 5750 [pid 5746] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5751 attached [pid 5749] close(3 [pid 5746] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5745] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5740] <... clone resumed>) = 5751 [pid 5749] <... close resumed>) = 0 [pid 5745] exit_group(0 [pid 5744] exit(0 [pid 5743] exit(0 [pid 5740] ptrace(PTRACE_ATTACH, 5751 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5749] memfd_create("syzkaller", 0 [pid 5746] <... openat resumed>) = 3 [pid 5745] <... exit_group resumed>) = ? [pid 5744] <... exit resumed>) = ? [pid 5743] <... exit resumed>) = ? [pid 5740] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5749] <... memfd_create resumed>) = 3 [pid 5749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5752 attached [pid 5752] set_robust_list(0x555566297660, 24 [pid 5749] <... mmap resumed>) = 0x7f9e50600000 [pid 5740] exit_group(0 [pid 5752] <... set_robust_list resumed>) = 0 [pid 5752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5749] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5746] clone(child_stack=NULL, flags=0 [pid 5745] +++ exited with 0 +++ [pid 5744] +++ exited with 0 +++ [pid 5743] +++ exited with 0 +++ [pid 5740] <... exit_group resumed>) = ? [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5752 [pid 5752] <... prctl resumed>) = 0 [pid 5752] setpgid(0, 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5752] <... setpgid resumed>) = 0 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5740] +++ exited with 0 +++ [pid 5090] <... restart_syscall resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5740, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5753 attached ./strace-static-x86_64: Process 5754 attached [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5755 attached [pid 5754] set_robust_list(0x555566297660, 24 [pid 5752] <... openat resumed>) = 3 [pid 5746] <... clone resumed>) = 5753 [pid 5752] write(3, "1000", 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5754 [pid 5755] set_robust_list(0x555566297660, 24 [pid 5754] <... set_robust_list resumed>) = 0 [pid 5746] ptrace(PTRACE_ATTACH, 5753 [pid 5752] <... write resumed>) = 4 [pid 5755] <... set_robust_list resumed>) = 0 [pid 5754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5752] close(3 [pid 5746] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5752] <... close resumed>) = 0 [pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5752] memfd_create("syzkaller", 0 [pid 5755] <... prctl resumed>) = 0 [pid 5754] <... prctl resumed>) = 0 [pid 5746] exit_group(0) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5755 [pid 5755] setpgid(0, 0 [pid 5754] setpgid(0, 0 [pid 5752] <... memfd_create resumed>) = 3 [pid 5755] <... setpgid resumed>) = 0 [pid 5754] <... setpgid resumed>) = 0 [pid 5752] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5749] <... write resumed>) = 1048576 [pid 5746] +++ exited with 0 +++ [pid 5752] <... mmap resumed>) = 0x7f9e50600000 [pid 5749] munmap(0x7f9e50600000, 138412032 [pid 5754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5752] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5749] <... munmap resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5746, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5749] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5755] <... openat resumed>) = 3 [pid 5754] <... openat resumed>) = 3 [pid 5752] <... write resumed>) = 1048576 [pid 5749] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5752] munmap(0x7f9e50600000, 138412032 [pid 5749] close(3 [pid 5755] write(3, "1000", 4 [pid 5754] write(3, "1000", 4 [pid 5752] <... munmap resumed>) = 0 [pid 5755] <... write resumed>) = 4 [pid 5754] <... write resumed>) = 4 [pid 5749] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5752] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5755] close(3 [pid 5752] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5754] close(3 [pid 5752] close(3 [pid 5755] <... close resumed>) = 0 [pid 5754] <... close resumed>) = 0 [pid 5752] <... close resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5754] memfd_create("syzkaller", 0 [pid 5749] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5749] clone(child_stack=NULL, flags=0 [pid 5755] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5756 attached ) = 3 [pid 5754] <... memfd_create resumed>) = 3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5756 [pid 5756] set_robust_list(0x555566297660, 24 [pid 5755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5754] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5756] <... set_robust_list resumed>) = 0 [pid 5755] <... mmap resumed>) = 0x7f9e50600000 [pid 5754] <... mmap resumed>) = 0x7f9e50600000 [pid 5752] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 ./strace-static-x86_64: Process 5757 attached [pid 5752] clone(child_stack=NULL, flags=0 [pid 5749] <... clone resumed>) = 5757 [pid 5749] ptrace(PTRACE_ATTACH, 5757) = -1 EPERM (Operation not permitted) [pid 5749] exit_group(0) = ? [pid 5749] +++ exited with 0 +++ [pid 5756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5756] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5758 attached [pid 5756] setpgid(0, 0 [pid 5755] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5754] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5756] <... setpgid resumed>) = 0 [pid 5752] <... clone resumed>) = 5758 [pid 5752] ptrace(PTRACE_ATTACH, 5758 [pid 5756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5752] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5752] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5756] <... openat resumed>) = 3 [pid 5752] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5756] write(3, "1000", 4 [pid 5752] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5756] <... write resumed>) = 4 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5759 attached [pid 5756] close(3) = 0 [pid 5759] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5759 [pid 5759] <... set_robust_list resumed>) = 0 [pid 5756] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5756] <... memfd_create resumed>) = 3 [pid 5755] <... write resumed>) = 1048576 [pid 5754] <... write resumed>) = 1048576 [pid 5748] exit(0 [pid 5759] <... prctl resumed>) = 0 [pid 5756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5755] munmap(0x7f9e50600000, 138412032 [pid 5747] exit(0 [pid 5748] <... exit resumed>) = ? [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5759] setpgid(0, 0 [pid 5754] munmap(0x7f9e50600000, 138412032 [pid 5756] <... mmap resumed>) = 0x7f9e50600000 [pid 5755] <... munmap resumed>) = 0 [pid 5754] <... munmap resumed>) = 0 [pid 5747] <... exit resumed>) = ? [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5754] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5760 attached [pid 5759] <... setpgid resumed>) = 0 [pid 5756] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5755] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5747] +++ exited with 0 +++ [pid 5748] +++ exited with 0 +++ [pid 5760] set_robust_list(0x555566297660, 24 [pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5755] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5754] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5760] <... set_robust_list resumed>) = 0 [pid 5755] close(3 [pid 5760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5759] <... openat resumed>) = 3 [pid 5754] close(3 [pid 5760] <... prctl resumed>) = 0 [pid 5760] setpgid(0, 0 [pid 5759] write(3, "1000", 4 [pid 5760] <... setpgid resumed>) = 0 [pid 5759] <... write resumed>) = 4 [pid 5756] <... write resumed>) = 1048576 [pid 5754] <... close resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5760 [pid 5760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5759] close(3 [pid 5756] munmap(0x7f9e50600000, 138412032 [pid 5760] <... openat resumed>) = 3 [pid 5759] <... close resumed>) = 0 [pid 5759] memfd_create("syzkaller", 0 [pid 5760] write(3, "1000", 4 [pid 5759] <... memfd_create resumed>) = 3 [pid 5756] <... munmap resumed>) = 0 [pid 5760] <... write resumed>) = 4 [pid 5756] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5750] exit(0 [pid 5760] close(3 [pid 5759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5756] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5754] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5750] <... exit resumed>) = ? [pid 5760] <... close resumed>) = 0 [pid 5759] <... mmap resumed>) = 0x7f9e50600000 [pid 5756] close(3 [pid 5754] <... openat resumed>) = 3 [pid 5750] +++ exited with 0 +++ [pid 5760] memfd_create("syzkaller", 0 [pid 5759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5755] <... close resumed>) = 0 [pid 5760] <... memfd_create resumed>) = 3 [pid 5754] clone(child_stack=NULL, flags=0 [pid 5760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5761 attached [pid 5760] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5756] <... close resumed>) = 0 [pid 5754] <... clone resumed>) = 5761 [pid 5751] exit(0 [pid 5756] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5754] ptrace(PTRACE_ATTACH, 5761 [pid 5755] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5754] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5755] clone(child_stack=NULL, flags=0 [pid 5756] <... openat resumed>) = 3 [pid 5754] exit_group(0 [pid 5751] <... exit resumed>) = ? ./strace-static-x86_64: Process 5762 attached [pid 5756] clone(child_stack=NULL, flags=0 [pid 5754] <... exit_group resumed>) = ? [pid 5751] +++ exited with 0 +++ ./strace-static-x86_64: Process 5763 attached [pid 5754] +++ exited with 0 +++ [pid 5755] <... clone resumed>) = 5762 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5754, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5753] exit(0) = ? [pid 5755] ptrace(PTRACE_ATTACH, 5762 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5753] +++ exited with 0 +++ [pid 5755] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5755] exit_group(0 [pid 5756] <... clone resumed>) = 5763 [pid 5755] <... exit_group resumed>) = ? [pid 5756] ptrace(PTRACE_ATTACH, 5763 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5764 ./strace-static-x86_64: Process 5764 attached [pid 5764] set_robust_list(0x555566297660, 24 [pid 5756] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5764] <... set_robust_list resumed>) = 0 [pid 5760] <... write resumed>) = 1048576 [pid 5756] exit_group(0 [pid 5755] +++ exited with 0 +++ [pid 5760] munmap(0x7f9e50600000, 138412032 [pid 5756] <... exit_group resumed>) = ? [pid 5764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5760] <... munmap resumed>) = 0 [pid 5756] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5764] <... prctl resumed>) = 0 [pid 5760] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5756, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5764] setpgid(0, 0) = 0 [pid 5760] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5760] close(3./strace-static-x86_64: Process 5765 attached [pid 5765] set_robust_list(0x555566297660, 24 [pid 5764] <... openat resumed>) = 3 [pid 5760] <... close resumed>) = 0 [pid 5759] <... write resumed>) = 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5765] <... set_robust_list resumed>) = 0 [pid 5764] write(3, "1000", 4 [pid 5760] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5764] <... write resumed>) = 4 [pid 5759] munmap(0x7f9e50600000, 138412032 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5765 [pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5764] close(3 [pid 5765] <... prctl resumed>) = 0 [pid 5764] <... close resumed>) = 0 [pid 5760] <... openat resumed>) = 3 [pid 5759] <... munmap resumed>) = 0 [pid 5759] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5764] memfd_create("syzkaller", 0 [pid 5765] setpgid(0, 0) = 0 [pid 5764] <... memfd_create resumed>) = 3 [pid 5760] clone(child_stack=NULL, flags=0 [pid 5759] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5759] close(3./strace-static-x86_64: Process 5766 attached [pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5759] <... close resumed>) = 0 [pid 5765] <... openat resumed>) = 3 [pid 5764] <... mmap resumed>) = 0x7f9e50600000 [pid 5760] <... clone resumed>) = 5766 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5759] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5760] ptrace(PTRACE_ATTACH, 5766 [pid 5759] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5767 attached [pid 5765] write(3, "1000", 4 [pid 5760] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5765] <... write resumed>) = 4 [pid 5760] exit_group(0 [pid 5757] exit(0 [pid 5765] close(3 [pid 5760] <... exit_group resumed>) = ? [pid 5757] <... exit resumed>) = ? [ 72.048396][ T35] NILFS (loop2): discard dirty page: offset=0, ino=6 [ 72.056493][ T2462] NILFS (loop4): discard dirty page: offset=0, ino=6 [ 72.068811][ T35] NILFS (loop2): discard dirty block: blocknr=35, size=1024 [ 72.086428][ T2462] NILFS (loop4): discard dirty block: blocknr=35, size=1024 [pid 5767] set_robust_list(0x555566297660, 24 [pid 5765] <... close resumed>) = 0 [pid 5760] +++ exited with 0 +++ [pid 5757] +++ exited with 0 +++ [pid 5767] <... set_robust_list resumed>) = 0 [pid 5765] memfd_create("syzkaller", 0 [pid 5764] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5767 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5758] exit(0) = ? [pid 5767] <... prctl resumed>) = 0 [pid 5758] +++ exited with 0 +++ ./strace-static-x86_64: Process 5768 attached [pid 5767] setpgid(0, 0) = 0 [pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5759] <... clone resumed>) = 5768 [pid 5765] <... memfd_create resumed>) = 3 [pid 5767] write(3, "1000", 4 [pid 5759] ptrace(PTRACE_ATTACH, 5768) = -1 EPERM (Operation not permitted) [pid 5767] <... write resumed>) = 4 [pid 5767] close(3) = 0 [pid 5767] memfd_create("syzkaller", 0) = 3 [pid 5767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5759] exit_group(0 [pid 5765] <... mmap resumed>) = 0x7f9e50600000 [pid 5759] <... exit_group resumed>) = ? [pid 5767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5759] +++ exited with 0 +++ [ 72.103915][ T35] NILFS (loop2): discard dirty block: blocknr=36, size=1024 [ 72.108352][ T2462] NILFS (loop4): discard dirty block: blocknr=36, size=1024 [ 72.127779][ T11] NILFS (loop1): discard dirty page: offset=0, ino=6 [ 72.128433][ T2462] NILFS (loop4): discard dirty block: blocknr=37, size=1024 [ 72.137798][ T35] NILFS (loop2): discard dirty block: blocknr=37, size=1024 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5764] <... write resumed>) = 1048576 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5767] <... write resumed>) = 1048576 [pid 5765] <... write resumed>) = 1048576 [pid 5764] munmap(0x7f9e50600000, 138412032 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5769 ./strace-static-x86_64: Process 5770 attached [pid 5765] munmap(0x7f9e50600000, 138412032 [pid 5764] <... munmap resumed>) = 0 [pid 5761] exit(0./strace-static-x86_64: Process 5769 attached [pid 5769] set_robust_list(0x555566297660, 24) = 0 [pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5769] setpgid(0, 0) = 0 [pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5769] write(3, "1000", 4) = 4 [pid 5769] close(3) = 0 [ 72.155110][ T11] NILFS (loop1): discard dirty block: blocknr=35, size=1024 [ 72.162965][ T2462] NILFS (loop4): discard dirty block: blocknr=38, size=1024 [ 72.175964][ T11] NILFS (loop1): discard dirty block: blocknr=36, size=1024 [ 72.181506][ T2462] NILFS (loop4): discard dirty page: offset=0, ino=2 [ 72.187386][ T35] NILFS (loop2): discard dirty block: blocknr=38, size=1024 [ 72.193691][ T2462] NILFS (loop4): discard dirty block: blocknr=18, size=1024 [pid 5770] set_robust_list(0x555566297660, 24 [pid 5765] <... munmap resumed>) = 0 [pid 5764] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5762] exit(0 [pid 5761] <... exit resumed>) = ? [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5770 [pid 5769] memfd_create("syzkaller", 0 [pid 5767] munmap(0x7f9e50600000, 138412032) = 0 [pid 5769] <... memfd_create resumed>) = 3 [pid 5769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5763] exit(0 [pid 5769] <... mmap resumed>) = 0x7f9e50600000 [pid 5763] <... exit resumed>) = ? [pid 5763] +++ exited with 0 +++ [pid 5770] <... set_robust_list resumed>) = 0 [pid 5769] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5767] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5765] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5764] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5762] <... exit resumed>) = ? [pid 5761] +++ exited with 0 +++ [pid 5767] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5767] close(3) = 0 [pid 5765] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5764] close(3 [pid 5762] +++ exited with 0 +++ [pid 5770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5770] setpgid(0, 0 [pid 5765] close(3 [pid 5770] <... setpgid resumed>) = 0 [pid 5765] <... close resumed>) = 0 [pid 5764] <... close resumed>) = 0 [pid 5765] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5766] exit(0 [ 72.202853][ T35] NILFS (loop2): discard dirty page: offset=0, ino=2 [ 72.206636][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.221447][ T11] NILFS (loop1): discard dirty block: blocknr=37, size=1024 [ 72.224108][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.244482][ T35] NILFS (loop2): discard dirty block: blocknr=18, size=1024 [pid 5764] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5767] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5766] <... exit resumed>) = ? [pid 5765] <... openat resumed>) = 3 [pid 5764] <... openat resumed>) = 3 [pid 5767] <... openat resumed>) = 3 [pid 5767] clone(child_stack=NULL, flags=0) = 5771 [pid 5768] exit(0 [pid 5767] ptrace(PTRACE_ATTACH, 5771 [pid 5768] <... exit resumed>) = ? [pid 5767] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5768] +++ exited with 0 +++ [pid 5767] exit_group(0 [pid 5765] clone(child_stack=NULL, flags=0 [pid 5764] clone(child_stack=NULL, flags=0 [pid 5767] <... exit_group resumed>) = ? [pid 5767] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5772 attached ./strace-static-x86_64: Process 5771 attached [pid 5764] <... clone resumed>) = 5772 [pid 5770] <... openat resumed>) = 3 [pid 5764] ptrace(PTRACE_ATTACH, 5772 [pid 5769] <... write resumed>) = 1048576 [pid 5764] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5773 attached ) = -1 EBUSY (Device or resource busy) [ 72.255599][ T11] NILFS (loop1): discard dirty block: blocknr=38, size=1024 [ 72.257155][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.281045][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.282152][ T2462] NILFS (loop4): discard dirty page: offset=0, ino=5 [ 72.291090][ T11] NILFS (loop1): discard dirty page: offset=0, ino=2 [pid 5770] write(3, "1000", 4 [pid 5766] +++ exited with 0 +++ [pid 5765] <... clone resumed>) = 5773 [pid 5764] exit_group(0 [pid 5769] munmap(0x7f9e50600000, 138412032 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5769] <... munmap resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5774 [pid 5769] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5769] close(3 [pid 5770] <... write resumed>) = 4 [pid 5769] <... close resumed>) = 0 [pid 5765] ptrace(PTRACE_ATTACH, 5773 [pid 5764] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5774 attached [pid 5774] set_robust_list(0x555566297660, 24) = 0 [pid 5774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5774] setpgid(0, 0) = 0 [pid 5774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5774] write(3, "1000", 4) = 4 [pid 5774] close(3 [pid 5769] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5774] <... close resumed>) = 0 [pid 5769] <... openat resumed>) = 3 [pid 5774] memfd_create("syzkaller", 0) = 3 [pid 5770] close(3 [pid 5765] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5764] +++ exited with 0 +++ [pid 5774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5769] clone(child_stack=NULL, flags=0 [pid 5774] <... mmap resumed>) = 0x7f9e50600000 [pid 5769] <... clone resumed>) = 5775 [pid 5769] ptrace(PTRACE_ATTACH, 5775) = -1 EPERM (Operation not permitted) [pid 5769] exit_group(0) = ? [ 72.298130][ T2462] NILFS (loop4): discard dirty block: blocknr=41, size=1024 [ 72.312840][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.320704][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.324914][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.341948][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 ./strace-static-x86_64: Process 5775 attached [pid 5774] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5770] <... close resumed>) = 0 [pid 5769] +++ exited with 0 +++ [pid 5765] exit_group(0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5770] memfd_create("syzkaller", 0 [pid 5765] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5776 ./strace-static-x86_64: Process 5776 attached [pid 5770] <... memfd_create resumed>) = 3 [pid 5765] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5774] <... write resumed>) = 1048576 [pid 5776] set_robust_list(0x555566297660, 24 [pid 5774] munmap(0x7f9e50600000, 138412032 [pid 5770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5774] <... munmap resumed>) = 0 [pid 5774] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 72.346619][ T11] NILFS (loop1): discard dirty block: blocknr=18, size=1024 [ 72.352440][ T2462] NILFS (loop4): discard dirty page: offset=0, ino=3 [ 72.366849][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.368767][ T2462] NILFS (loop4): discard dirty block: blocknr=42, size=1024 [ 72.383557][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.393449][ T35] NILFS (loop2): discard dirty page: offset=0, ino=5 [pid 5776] <... set_robust_list resumed>) = 0 [pid 5774] close(3 [pid 5770] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5770] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5777 [pid 5772] exit(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5772] <... exit resumed>) = ? [pid 5776] <... prctl resumed>) = 0 [pid 5772] +++ exited with 0 +++ [pid 5771] exit(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5771] <... exit resumed>) = ? [pid 5771] +++ exited with 0 +++ [pid 5770] <... write resumed>) = 1048576 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5776] setpgid(0, 0) = 0 [pid 5776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5777 attached ./strace-static-x86_64: Process 5778 attached [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5778 [pid 5776] <... openat resumed>) = 3 [pid 5778] set_robust_list(0x555566297660, 24) = 0 [pid 5777] set_robust_list(0x555566297660, 24 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5777] <... set_robust_list resumed>) = 0 [pid 5776] write(3, "1000", 4 [pid 5778] <... prctl resumed>) = 0 [pid 5770] munmap(0x7f9e50600000, 138412032 [pid 5774] <... close resumed>) = 0 [pid 5774] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [ 72.401607][ T2462] NILFS (loop4): discard dirty block: blocknr=43, size=1024 [ 72.405193][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.410189][ T2462] NILFS (loop4): discard dirty block: blocknr=44, size=1024 [ 72.419494][ T35] NILFS (loop2): discard dirty block: blocknr=41, size=1024 [pid 5774] clone(child_stack=NULL, flags=0 [pid 5773] exit(0) = ? [pid 5773] +++ exited with 0 +++ ./strace-static-x86_64: Process 5779 attached [pid 5778] setpgid(0, 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5776] <... write resumed>) = 4 [pid 5770] <... munmap resumed>) = 0 [pid 5774] <... clone resumed>) = 5779 [pid 5774] ptrace(PTRACE_ATTACH, 5779) = -1 EPERM (Operation not permitted) [pid 5774] exit_group(0) = ? [pid 5778] <... setpgid resumed>) = 0 [pid 5777] <... prctl resumed>) = 0 [pid 5776] close(3 [pid 5774] +++ exited with 0 +++ [pid 5770] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5774, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5780 attached , child_tidptr=0x555566297650) = 5780 [pid 5780] set_robust_list(0x555566297660, 24) = 0 [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5780] setpgid(0, 0) = 0 [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5780] write(3, "1000", 4 [pid 5776] <... close resumed>) = 0 [pid 5770] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5780] <... write resumed>) = 4 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5770] close(3 [pid 5780] close(3 [pid 5776] memfd_create("syzkaller", 0 [pid 5780] <... close resumed>) = 0 [pid 5780] memfd_create("syzkaller", 0 [pid 5778] <... openat resumed>) = 3 [pid 5777] setpgid(0, 0 [pid 5776] <... memfd_create resumed>) = 3 [pid 5770] <... close resumed>) = 0 [pid 5780] <... memfd_create resumed>) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [ 72.450246][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.462054][ T2462] NILFS (loop4): discard dirty page: offset=0, ino=4 [ 72.470375][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.472122][ T2462] NILFS (loop4): discard dirty block: blocknr=40, size=1024 [ 72.489382][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.494739][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.508014][ T11] NILFS (loop1): discard dirty page: offset=0, ino=5 [ 72.508043][ T11] NILFS (loop1): discard dirty block: blocknr=41, size=1024 [ 72.508060][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.508076][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.508092][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.508130][ T11] NILFS (loop1): discard dirty page: offset=0, ino=3 [pid 5780] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5778] write(3, "1000", 4 [pid 5777] <... setpgid resumed>) = 0 [pid 5776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5770] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5775] exit(0 [pid 5770] <... openat resumed>) = 3 [pid 5775] <... exit resumed>) = ? [pid 5776] <... mmap resumed>) = 0x7f9e50600000 [pid 5780] <... write resumed>) = 1048576 [pid 5778] <... write resumed>) = 4 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5776] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5775] +++ exited with 0 +++ [pid 5770] clone(child_stack=NULL, flags=0 [pid 5778] close(3./strace-static-x86_64: Process 5781 attached ) = 0 [pid 5777] <... openat resumed>) = 3 [pid 5777] write(3, "1000", 4 [pid 5770] <... clone resumed>) = 5781 [pid 5777] <... write resumed>) = 4 [pid 5777] close(3 [pid 5770] ptrace(PTRACE_ATTACH, 5781 [pid 5778] memfd_create("syzkaller", 0 [pid 5770] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5777] <... close resumed>) = 0 [pid 5777] memfd_create("syzkaller", 0 [pid 5770] exit_group(0) = ? [pid 5780] munmap(0x7f9e50600000, 138412032 [pid 5778] <... memfd_create resumed>) = 3 [pid 5777] <... memfd_create resumed>) = 3 [pid 5776] <... write resumed>) = 1048576 [pid 5770] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5770, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5782 [ 72.568803][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.580760][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.587753][ T11] NILFS (loop1): discard dirty block: blocknr=42, size=1024 [ 72.590090][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.598205][ T11] NILFS (loop1): discard dirty block: blocknr=43, size=1024 [pid 5780] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5782 attached [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5776] munmap(0x7f9e50600000, 138412032 [pid 5780] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5779] exit(0 [pid 5780] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5779] <... exit resumed>) = ? [pid 5780] close(3 [pid 5779] +++ exited with 0 +++ [pid 5780] <... close resumed>) = 0 [pid 5780] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5780] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5783 attached ) = 5783 [pid 5780] ptrace(PTRACE_ATTACH, 5783) = -1 EPERM (Operation not permitted) [pid 5780] exit_group(0 [pid 5782] set_robust_list(0x555566297660, 24 [pid 5780] <... exit_group resumed>) = ? [pid 5777] <... mmap resumed>) = 0x7f9e50600000 [pid 5776] <... munmap resumed>) = 0 [pid 5780] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 72.613852][ T35] NILFS (loop2): discard dirty page: offset=0, ino=3 [ 72.613878][ T35] NILFS (loop2): discard dirty block: blocknr=42, size=1024 [ 72.613896][ T35] NILFS (loop2): discard dirty block: blocknr=43, size=1024 [ 72.613910][ T35] NILFS (loop2): discard dirty block: blocknr=44, size=1024 [ 72.613926][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.613962][ T35] NILFS (loop2): discard dirty page: offset=0, ino=4 [ 72.613978][ T35] NILFS (loop2): discard dirty block: blocknr=40, size=1024 [pid 5778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5778] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5784 attached [pid 5784] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5784 [pid 5784] <... set_robust_list resumed>) = 0 [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5784] setpgid(0, 0) = 0 [pid 5782] <... set_robust_list resumed>) = 0 [pid 5777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5776] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5776] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5784] <... openat resumed>) = 3 [pid 5776] close(3 [pid 5784] write(3, "1000", 4 [pid 5778] <... write resumed>) = 1048576 [pid 5777] <... write resumed>) = 1048576 [pid 5784] <... write resumed>) = 4 [ 72.613994][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.622684][ T11] NILFS (loop1): discard dirty block: blocknr=44, size=1024 [ 72.647721][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.656305][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.679925][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [pid 5784] close(3) = 0 [pid 5782] <... prctl resumed>) = 0 [pid 5777] munmap(0x7f9e50600000, 138412032 [pid 5776] <... close resumed>) = 0 [pid 5784] memfd_create("syzkaller", 0) = 3 [pid 5778] munmap(0x7f9e50600000, 138412032) = 0 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5778] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5784] <... mmap resumed>) = 0x7f9e50600000 [pid 5778] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5778] close(3 [pid 5782] setpgid(0, 0 [pid 5781] exit(0 [pid 5778] <... close resumed>) = 0 [pid 5777] <... munmap resumed>) = 0 [pid 5776] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5778] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5782] <... setpgid resumed>) = 0 [pid 5781] <... exit resumed>) = ? [pid 5778] clone(child_stack=NULL, flags=0 [pid 5777] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5776] <... openat resumed>) = 3 [pid 5778] <... clone resumed>) = 5785 [pid 5778] ptrace(PTRACE_ATTACH, 5785) = -1 EPERM (Operation not permitted) [pid 5778] exit_group(0) = ? [ 72.728183][ T2462] NILFS (loop4): discard dirty page: offset=4096, ino=6 [ 72.729619][ T11] NILFS (loop1): discard dirty page: offset=0, ino=4 [ 72.735347][ T2462] NILFS (loop4): discard dirty block: blocknr=39, size=1024 [ 72.750128][ T11] NILFS (loop1): discard dirty block: blocknr=40, size=1024 [ 72.759755][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 ./strace-static-x86_64: Process 5785 attached [pid 5784] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] +++ exited with 0 +++ [pid 5778] +++ exited with 0 +++ [pid 5777] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5776] clone(child_stack=NULL, flags=0 [pid 5782] <... openat resumed>) = 3 [pid 5777] close(3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5778, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5783] exit(0) = ? [pid 5783] +++ exited with 0 +++ ./strace-static-x86_64: Process 5786 attached [pid 5776] <... clone resumed>) = 5786 [pid 5782] write(3, "1000", 4 [pid 5777] <... close resumed>) = 0 [pid 5776] ptrace(PTRACE_ATTACH, 5786 [pid 5782] <... write resumed>) = 4 [pid 5777] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5776] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5776] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5777] <... openat resumed>) = 3 [ 72.770226][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.782785][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.784374][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.796003][ T11] NILFS (loop1): discard dirty page: offset=4096, ino=6 [ 72.809893][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.819872][ T11] NILFS (loop1): discard dirty block: blocknr=39, size=1024 ./strace-static-x86_64: Process 5787 attached [pid 5784] <... write resumed>) = 1048576 [pid 5782] close(3 [pid 5777] clone(child_stack=NULL, flags=0 [pid 5776] <... exit_group resumed>) = ? [pid 5784] munmap(0x7f9e50600000, 138412032) = 0 [pid 5784] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5784] close(3./strace-static-x86_64: Process 5788 attached [pid 5787] set_robust_list(0x555566297660, 24 [pid 5784] <... close resumed>) = 0 [pid 5782] <... close resumed>) = 0 [pid 5776] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5787 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5776, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5789 attached [pid 5789] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5789 [pid 5789] <... set_robust_list resumed>) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5787] <... set_robust_list resumed>) = 0 [pid 5782] memfd_create("syzkaller", 0 [pid 5777] <... clone resumed>) = 5788 [pid 5789] <... prctl resumed>) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4) = 4 [pid 5789] close(3 [pid 5784] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5789] <... close resumed>) = 0 [pid 5784] <... openat resumed>) = 3 [pid 5789] memfd_create("syzkaller", 0 [pid 5784] clone(child_stack=NULL, flags=0 [pid 5789] <... memfd_create resumed>) = 3 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5782] <... memfd_create resumed>) = 3 [ 72.831323][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.845498][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.852994][ T35] NILFS (loop2): discard dirty page: offset=4096, ino=6 [ 72.855944][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.871700][ T11] NILFS (loop1): discard dirty page: offset=196608, ino=3 [pid 5777] ptrace(PTRACE_ATTACH, 5788 [pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5790 attached ) = 0x7f9e50600000 [pid 5787] <... prctl resumed>) = 0 [pid 5784] <... clone resumed>) = 5790 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5777] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5789] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5784] ptrace(PTRACE_ATTACH, 5790) = -1 EPERM (Operation not permitted) [pid 5784] exit_group(0 [pid 5777] exit_group(0 [pid 5787] setpgid(0, 0 [pid 5782] <... mmap resumed>) = 0x7f9e50600000 [pid 5777] <... exit_group resumed>) = ? [pid 5784] <... exit_group resumed>) = ? [pid 5784] +++ exited with 0 +++ [pid 5777] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5784, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5787] <... setpgid resumed>) = 0 [pid 5782] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5791 [pid 5787] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 72.874492][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.879816][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.902950][ T35] NILFS (loop2): discard dirty block: blocknr=39, size=1024 [ 72.907649][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 ./strace-static-x86_64: Process 5791 attached [pid 5787] write(3, "1000", 4 [pid 5782] <... write resumed>) = 1048576 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5792 ./strace-static-x86_64: Process 5792 attached [pid 5791] set_robust_list(0x555566297660, 24 [pid 5789] <... write resumed>) = 1048576 [pid 5787] <... write resumed>) = 4 [pid 5782] munmap(0x7f9e50600000, 138412032 [pid 5792] set_robust_list(0x555566297660, 24 [pid 5791] <... set_robust_list resumed>) = 0 [pid 5789] munmap(0x7f9e50600000, 138412032 [pid 5787] close(3 [pid 5782] <... munmap resumed>) = 0 [pid 5792] <... set_robust_list resumed>) = 0 [pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5787] <... close resumed>) = 0 [pid 5786] exit(0 [pid 5785] exit(0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5791] <... prctl resumed>) = 0 [pid 5787] memfd_create("syzkaller", 0 [pid 5786] <... exit resumed>) = ? [pid 5785] <... exit resumed>) = ? [pid 5782] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5791] setpgid(0, 0 [pid 5789] <... munmap resumed>) = 0 [pid 5787] <... memfd_create resumed>) = 3 [pid 5786] +++ exited with 0 +++ [pid 5785] +++ exited with 0 +++ [pid 5782] close(3 [pid 5792] <... prctl resumed>) = 0 [pid 5791] <... setpgid resumed>) = 0 [pid 5789] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5792] setpgid(0, 0 [pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5789] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5787] <... mmap resumed>) = 0x7f9e50600000 [pid 5791] <... openat resumed>) = 3 [pid 5789] close(3 [pid 5792] <... setpgid resumed>) = 0 [pid 5791] write(3, "1000", 4 [pid 5789] <... close resumed>) = 0 [pid 5782] <... close resumed>) = 0 [pid 5791] <... write resumed>) = 4 [ 72.925772][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.932143][ T11] NILFS (loop1): discard dirty block: blocknr=49, size=1024 [ 72.936891][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.953388][ T11] NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024 [ 72.956952][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5791] close(3 [pid 5787] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5782] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5792] <... openat resumed>) = 3 [pid 5791] <... close resumed>) = 0 [pid 5792] write(3, "1000", 4 [pid 5791] memfd_create("syzkaller", 0 [pid 5792] <... write resumed>) = 4 [pid 5791] <... memfd_create resumed>) = 3 [pid 5792] close(3 [pid 5791] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5792] <... close resumed>) = 0 [pid 5789] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5791] <... mmap resumed>) = 0x7f9e50600000 [pid 5792] memfd_create("syzkaller", 0) = 3 [pid 5789] <... openat resumed>) = 3 [pid 5782] <... openat resumed>) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5791] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5789] clone(child_stack=NULL, flags=0 [pid 5792] <... mmap resumed>) = 0x7f9e50600000 [pid 5789] <... clone resumed>) = 5793 [pid 5789] ptrace(PTRACE_ATTACH, 5793) = -1 EPERM (Operation not permitted) [pid 5782] clone(child_stack=NULL, flags=0 [pid 5789] exit_group(0) = ? ./strace-static-x86_64: Process 5794 attached ./strace-static-x86_64: Process 5793 attached [pid 5789] +++ exited with 0 +++ [pid 5788] exit(0 [pid 5782] <... clone resumed>) = 5794 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5791] <... write resumed>) = 1048576 [pid 5788] <... exit resumed>) = ? [ 72.988037][ T2462] NILFS (loop4): discard dirty page: offset=196608, ino=3 [ 73.001970][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 73.024001][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [pid 5782] ptrace(PTRACE_ATTACH, 5794 [pid 5792] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5791] munmap(0x7f9e50600000, 138412032 [pid 5788] +++ exited with 0 +++ [pid 5787] <... write resumed>) = 1048576 [pid 5782] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5787] munmap(0x7f9e50600000, 138412032 [pid 5782] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5787] <... munmap resumed>) = 0 [pid 5782] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5787] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5795 attached , child_tidptr=0x555566297650) = 5795 [pid 5795] set_robust_list(0x555566297660, 24) = 0 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5791] <... munmap resumed>) = 0 [pid 5787] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5782] +++ exited with 0 +++ [pid 5795] <... prctl resumed>) = 0 [pid 5791] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5795] setpgid(0, 0 [pid 5791] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5787] close(3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5782, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5795] <... setpgid resumed>) = 0 [pid 5792] <... write resumed>) = 1048576 [pid 5791] close(3 [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5795] <... openat resumed>) = 3 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5795] write(3, "1000", 4 [pid 5792] munmap(0x7f9e50600000, 138412032 [pid 5795] <... write resumed>) = 4 [pid 5795] close(3) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5795] memfd_create("syzkaller", 0) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5796 attached [pid 5795] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5792] <... munmap resumed>) = 0 [pid 5791] <... close resumed>) = 0 [pid 5796] set_robust_list(0x555566297660, 24 [pid 5790] exit(0 [pid 5796] <... set_robust_list resumed>) = 0 [pid 5790] <... exit resumed>) = ? [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5796 [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5796] setpgid(0, 0) = 0 [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5790] +++ exited with 0 +++ [pid 5796] <... openat resumed>) = 3 [pid 5796] write(3, "1000", 4) = 4 [pid 5792] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5796] close(3) = 0 [pid 5796] memfd_create("syzkaller", 0 [pid 5792] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5796] <... memfd_create resumed>) = 3 [pid 5792] close(3 [pid 5791] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5787] <... close resumed>) = 0 [ 73.035719][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 73.056304][ T35] NILFS (loop2): discard dirty page: offset=196608, ino=3 [pid 5796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5792] <... close resumed>) = 0 [pid 5791] <... openat resumed>) = 3 [pid 5787] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5796] <... mmap resumed>) = 0x7f9e50600000 [pid 5795] <... write resumed>) = 1048576 [pid 5795] munmap(0x7f9e50600000, 138412032 [pid 5791] clone(child_stack=NULL, flags=0 [pid 5787] <... openat resumed>) = 3 [pid 5795] <... munmap resumed>) = 0 [pid 5795] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5795] close(3 [pid 5787] clone(child_stack=NULL, flags=0 [pid 5792] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5791] <... clone resumed>) = 5797 ./strace-static-x86_64: Process 5798 attached ./strace-static-x86_64: Process 5797 attached [pid 5796] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5792] <... openat resumed>) = 3 [ 73.089353][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 73.095016][ T2462] NILFS (loop4): discard dirty block: blocknr=49, size=1024 [ 73.106854][ T2462] NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024 [ 73.119709][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [ 73.129246][ T35] NILFS (loop2): discard dirty block: blocknr=49, size=1024 [pid 5795] <... close resumed>) = 0 [pid 5796] <... write resumed>) = 1048576 [pid 5792] clone(child_stack=NULL, flags=0 [pid 5791] ptrace(PTRACE_ATTACH, 5797 [pid 5787] <... clone resumed>) = 5798 [pid 5796] munmap(0x7f9e50600000, 138412032 [pid 5795] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5791] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5796] <... munmap resumed>) = 0 [pid 5795] <... openat resumed>) = 3 [pid 5791] exit_group(0 [pid 5787] ptrace(PTRACE_ATTACH, 5798 [pid 5795] clone(child_stack=NULL, flags=0 [pid 5791] <... exit_group resumed>) = ? [pid 5787] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5799 attached [pid 5796] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5787] exit_group(0 [pid 5796] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5792] <... clone resumed>) = 5799 [pid 5787] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5800 attached [pid 5796] close(3 [pid 5792] ptrace(PTRACE_ATTACH, 5799 [pid 5791] +++ exited with 0 +++ [pid 5787] +++ exited with 0 +++ [pid 5795] <... clone resumed>) = 5800 [pid 5792] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5792] exit_group(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5795] ptrace(PTRACE_ATTACH, 5800 [pid 5792] <... exit_group resumed>) = ? [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5089] <... restart_syscall resumed>) = 0 [pid 5795] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5795] exit_group(0) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5792] +++ exited with 0 +++ [pid 5093] <... restart_syscall resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5792, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5795] +++ exited with 0 +++ [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5801 attached [pid 5796] <... close resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5801 [pid 5801] set_robust_list(0x555566297660, 24 [pid 5796] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5801] <... set_robust_list resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5802 attached [pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5796] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5802] set_robust_list(0x555566297660, 24 [pid 5796] clone(child_stack=NULL, flags=0 [pid 5793] exit(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5801] <... prctl resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5801] setpgid(0, 0 [pid 5793] <... exit resumed>) = ? [pid 5801] <... setpgid resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5802 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5803 attached [pid 5793] +++ exited with 0 +++ [pid 5801] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5804 attached [pid 5803] set_robust_list(0x555566297660, 24 [pid 5804] set_robust_list(0x555566297660, 24 [pid 5803] <... set_robust_list resumed>) = 0 [pid 5804] <... set_robust_list resumed>) = 0 [pid 5803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5801] write(3, "1000", 4./strace-static-x86_64: Process 5805 attached [pid 5804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5802] <... set_robust_list resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5803 [pid 5804] <... prctl resumed>) = 0 [pid 5803] <... prctl resumed>) = 0 [pid 5801] <... write resumed>) = 4 [pid 5804] setpgid(0, 0 [pid 5803] setpgid(0, 0 [pid 5801] close(3 [pid 5804] <... setpgid resumed>) = 0 [pid 5803] <... setpgid resumed>) = 0 [pid 5802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5801] <... close resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5804 [pid 5804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5802] <... prctl resumed>) = 0 [pid 5801] memfd_create("syzkaller", 0 [pid 5796] <... clone resumed>) = 5805 [pid 5804] <... openat resumed>) = 3 [pid 5803] <... openat resumed>) = 3 [pid 5802] setpgid(0, 0 [pid 5801] <... memfd_create resumed>) = 3 [pid 5802] <... setpgid resumed>) = 0 [pid 5796] ptrace(PTRACE_ATTACH, 5805 [pid 5794] exit(0 [pid 5801] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5794] <... exit resumed>) = ? [pid 5804] write(3, "1000", 4 [pid 5803] write(3, "1000", 4 [pid 5802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5801] <... mmap resumed>) = 0x7f9e50600000 [pid 5804] <... write resumed>) = 4 [pid 5803] <... write resumed>) = 4 [pid 5802] <... openat resumed>) = 3 [pid 5801] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5796] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5794] +++ exited with 0 +++ [ 73.136655][ T35] NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024 [pid 5804] close(3 [pid 5803] close(3 [pid 5802] write(3, "1000", 4 [pid 5801] <... write resumed>) = 1048576 [pid 5796] exit_group(0 [pid 5804] <... close resumed>) = 0 [pid 5803] <... close resumed>) = 0 [pid 5802] <... write resumed>) = 4 [pid 5796] <... exit_group resumed>) = ? [pid 5802] close(3) = 0 [pid 5802] memfd_create("syzkaller", 0 [pid 5803] memfd_create("syzkaller", 0 [pid 5804] memfd_create("syzkaller", 0) = 3 [pid 5803] <... memfd_create resumed>) = 3 [pid 5804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5803] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5804] <... mmap resumed>) = 0x7f9e50600000 [pid 5796] +++ exited with 0 +++ [pid 5802] <... memfd_create resumed>) = 3 [pid 5803] <... mmap resumed>) = 0x7f9e50600000 [pid 5802] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5796, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5803] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5802] <... mmap resumed>) = 0x7f9e50600000 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5804] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5803] <... write resumed>) = 1048576 [pid 5802] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5801] munmap(0x7f9e50600000, 138412032 [pid 5803] munmap(0x7f9e50600000, 138412032 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5803] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5806 attached [pid 5803] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5806] set_robust_list(0x555566297660, 24) = 0 [pid 5803] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5803] close(3 [pid 5801] <... munmap resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5806 [pid 5806] <... prctl resumed>) = 0 [pid 5806] setpgid(0, 0 [pid 5801] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5806] <... setpgid resumed>) = 0 [pid 5801] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5801] close(3 [pid 5806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5803] <... close resumed>) = 0 [pid 5801] <... close resumed>) = 0 [pid 5806] <... openat resumed>) = 3 [pid 5806] write(3, "1000", 4 [pid 5804] <... write resumed>) = 1048576 [pid 5806] <... write resumed>) = 4 [pid 5803] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5804] munmap(0x7f9e50600000, 138412032 [pid 5806] close(3 [pid 5803] <... openat resumed>) = 3 [pid 5806] <... close resumed>) = 0 [pid 5803] clone(child_stack=NULL, flags=0 [pid 5801] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5806] memfd_create("syzkaller", 0) = 3 [pid 5801] <... openat resumed>) = 3 [pid 5806] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5807 attached ) = 0x7f9e50600000 [pid 5804] <... munmap resumed>) = 0 [pid 5801] clone(child_stack=NULL, flags=0 [pid 5804] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5808 attached [pid 5806] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5804] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5803] <... clone resumed>) = 5807 [pid 5802] <... write resumed>) = 1048576 [pid 5803] ptrace(PTRACE_ATTACH, 5807 [pid 5804] close(3) = 0 [pid 5803] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5803] exit_group(0) = ? [pid 5803] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5803, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5801] <... clone resumed>) = 5808 [pid 5801] ptrace(PTRACE_ATTACH, 5808) = -1 EPERM (Operation not permitted) [pid 5801] exit_group(0) = ? [pid 5797] exit(0 [pid 5801] +++ exited with 0 +++ [pid 5797] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5797] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5804] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5809 attached ./strace-static-x86_64: Process 5810 attached [pid 5810] set_robust_list(0x555566297660, 24 [pid 5809] set_robust_list(0x555566297660, 24 [pid 5806] <... write resumed>) = 1048576 [pid 5804] <... openat resumed>) = 3 [pid 5802] munmap(0x7f9e50600000, 138412032 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5809 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5810 [pid 5810] <... set_robust_list resumed>) = 0 [pid 5809] <... set_robust_list resumed>) = 0 [pid 5806] munmap(0x7f9e50600000, 138412032 [pid 5802] <... munmap resumed>) = 0 [pid 5810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5806] <... munmap resumed>) = 0 [pid 5804] clone(child_stack=NULL, flags=0 [pid 5799] exit(0 [pid 5798] exit(0./strace-static-x86_64: Process 5811 attached [pid 5810] <... prctl resumed>) = 0 [pid 5809] <... prctl resumed>) = 0 [pid 5802] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5799] <... exit resumed>) = ? [pid 5798] <... exit resumed>) = ? [pid 5810] setpgid(0, 0 [pid 5809] setpgid(0, 0 [pid 5806] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5799] +++ exited with 0 +++ [pid 5798] +++ exited with 0 +++ [pid 5810] <... setpgid resumed>) = 0 [pid 5809] <... setpgid resumed>) = 0 [pid 5806] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5804] <... clone resumed>) = 5811 [pid 5802] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5806] close(3 [pid 5802] close(3 [pid 5800] exit(0 [pid 5810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5806] <... close resumed>) = 0 [pid 5804] ptrace(PTRACE_ATTACH, 5811 [pid 5806] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5800] <... exit resumed>) = ? [pid 5810] <... openat resumed>) = 3 [pid 5809] <... openat resumed>) = 3 [pid 5804] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5802] <... close resumed>) = 0 [pid 5810] write(3, "1000", 4 [pid 5809] write(3, "1000", 4 [pid 5806] <... openat resumed>) = 3 [pid 5804] exit_group(0 [pid 5802] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5810] <... write resumed>) = 4 [pid 5809] <... write resumed>) = 4 [pid 5806] clone(child_stack=NULL, flags=0 [pid 5804] <... exit_group resumed>) = ? [pid 5802] <... openat resumed>) = 3 [pid 5800] +++ exited with 0 +++ [pid 5810] close(3 [pid 5809] close(3) = 0 [pid 5810] <... close resumed>) = 0 [pid 5810] memfd_create("syzkaller", 0 [pid 5809] memfd_create("syzkaller", 0 [pid 5802] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5813 attached ./strace-static-x86_64: Process 5812 attached [pid 5810] <... memfd_create resumed>) = 3 [pid 5809] <... memfd_create resumed>) = 3 [pid 5804] +++ exited with 0 +++ [pid 5806] <... clone resumed>) = 5812 [pid 5810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5806] ptrace(PTRACE_ATTACH, 5812 [pid 5802] <... clone resumed>) = 5813 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5804, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5810] <... mmap resumed>) = 0x7f9e50600000 [pid 5809] <... mmap resumed>) = 0x7f9e50600000 [pid 5806] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5805] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5806] exit_group(0 [pid 5802] ptrace(PTRACE_ATTACH, 5813 [pid 5806] <... exit_group resumed>) = ? [pid 5806] +++ exited with 0 +++ [pid 5802] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5802] exit_group(0) = ? [pid 5810] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5809] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5805] <... exit resumed>) = ? [pid 5802] +++ exited with 0 +++ [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5806, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5814 attached ) = -1 EBUSY (Device or resource busy) [pid 5814] set_robust_list(0x555566297660, 24 [pid 5810] <... write resumed>) = 1048576 [pid 5809] <... write resumed>) = 1048576 [pid 5805] +++ exited with 0 +++ [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5814 [pid 5814] <... set_robust_list resumed>) = 0 [pid 5810] munmap(0x7f9e50600000, 138412032 [pid 5809] munmap(0x7f9e50600000, 138412032 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5810] <... munmap resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5814] <... prctl resumed>) = 0 [pid 5814] setpgid(0, 0) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5815 attached [pid 5814] <... openat resumed>) = 3 [pid 5810] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5814] write(3, "1000", 4) = 4 [pid 5810] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5814] close(3./strace-static-x86_64: Process 5816 attached [pid 5815] set_robust_list(0x555566297660, 24 [pid 5814] <... close resumed>) = 0 [pid 5810] close(3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5815 [pid 5815] <... set_robust_list resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5816 [pid 5816] set_robust_list(0x555566297660, 24 [pid 5815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5814] memfd_create("syzkaller", 0 [pid 5810] <... close resumed>) = 0 [pid 5809] <... munmap resumed>) = 0 [pid 5816] <... set_robust_list resumed>) = 0 [pid 5815] <... prctl resumed>) = 0 [pid 5809] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5815] setpgid(0, 0) = 0 [pid 5814] <... memfd_create resumed>) = 3 [pid 5809] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5816] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5814] <... mmap resumed>) = 0x7f9e50600000 [pid 5809] close(3 [pid 5816] <... prctl resumed>) = 0 [pid 5814] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5809] <... close resumed>) = 0 [pid 5816] setpgid(0, 0) = 0 [pid 5815] <... openat resumed>) = 3 [pid 5816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5810] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5816] <... openat resumed>) = 3 [pid 5815] write(3, "1000", 4 [pid 5810] <... openat resumed>) = 3 [pid 5809] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5815] <... write resumed>) = 4 [pid 5815] close(3) = 0 [pid 5816] write(3, "1000", 4 [pid 5810] clone(child_stack=NULL, flags=0 [pid 5816] <... write resumed>) = 4 [pid 5815] memfd_create("syzkaller", 0 [pid 5816] close(3 [pid 5815] <... memfd_create resumed>) = 3 [pid 5815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5816] <... close resumed>) = 0 [pid 5810] <... clone resumed>) = 5817 [pid 5815] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5817 attached [pid 5816] memfd_create("syzkaller", 0 [pid 5810] ptrace(PTRACE_ATTACH, 5817 [pid 5816] <... memfd_create resumed>) = 3 [pid 5810] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5809] <... openat resumed>) = 3 [pid 5816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5810] exit_group(0 [pid 5809] clone(child_stack=NULL, flags=0 [pid 5816] <... mmap resumed>) = 0x7f9e50600000 [pid 5810] <... exit_group resumed>) = ? [pid 5815] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5810] +++ exited with 0 +++ [pid 5809] <... clone resumed>) = 5818 [pid 5808] exit(0) = ? [pid 5807] exit(0) = ? ./strace-static-x86_64: Process 5818 attached [pid 5808] +++ exited with 0 +++ [pid 5807] +++ exited with 0 +++ [pid 5809] ptrace(PTRACE_ATTACH, 5818 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5810, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5809] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5809] exit_group(0) = ? [pid 5816] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5809] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5819 ./strace-static-x86_64: Process 5819 attached [pid 5816] <... write resumed>) = 1048576 [pid 5815] <... write resumed>) = 1048576 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5819] set_robust_list(0x555566297660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5819] <... set_robust_list resumed>) = 0 [pid 5815] munmap(0x7f9e50600000, 138412032 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5814] <... write resumed>) = 1048576 [pid 5814] munmap(0x7f9e50600000, 138412032 [pid 5819] <... prctl resumed>) = 0 [pid 5815] <... munmap resumed>) = 0 [pid 5819] setpgid(0, 0) = 0 [pid 5814] <... munmap resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5820 attached [pid 5815] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5820] set_robust_list(0x555566297660, 24) = 0 [pid 5815] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5814] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5815] close(3 [pid 5814] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5814] close(3 [pid 5820] <... prctl resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5814] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5820 [pid 5816] munmap(0x7f9e50600000, 138412032 [pid 5820] setpgid(0, 0 [pid 5819] write(3, "1000", 4 [pid 5816] <... munmap resumed>) = 0 [pid 5815] <... close resumed>) = 0 [pid 5820] <... setpgid resumed>) = 0 [pid 5819] <... write resumed>) = 4 [pid 5811] exit(0 [pid 5819] close(3 [pid 5811] <... exit resumed>) = ? [pid 5819] <... close resumed>) = 0 [pid 5816] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5816] close(3 [pid 5811] +++ exited with 0 +++ [pid 5819] memfd_create("syzkaller", 0 [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5819] <... memfd_create resumed>) = 3 [pid 5814] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5820] <... openat resumed>) = 3 [pid 5819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5816] <... close resumed>) = 0 [pid 5815] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5814] <... openat resumed>) = 3 [pid 5816] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5814] clone(child_stack=NULL, flags=0 [pid 5820] write(3, "1000", 4 [pid 5819] <... mmap resumed>) = 0x7f9e50600000 [pid 5816] <... openat resumed>) = 3 [pid 5815] <... openat resumed>) = 3 [pid 5820] <... write resumed>) = 4 ./strace-static-x86_64: Process 5821 attached [pid 5820] close(3 [pid 5816] clone(child_stack=NULL, flags=0 [pid 5815] clone(child_stack=NULL, flags=0 [pid 5820] <... close resumed>) = 0 ./strace-static-x86_64: Process 5822 attached [pid 5820] memfd_create("syzkaller", 0 [pid 5814] <... clone resumed>) = 5821 [pid 5820] <... memfd_create resumed>) = 3 [pid 5820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5823 attached [pid 5819] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5816] <... clone resumed>) = 5822 [pid 5814] ptrace(PTRACE_ATTACH, 5821 [pid 5820] <... mmap resumed>) = 0x7f9e50600000 [pid 5816] ptrace(PTRACE_ATTACH, 5822 [pid 5815] <... clone resumed>) = 5823 [pid 5814] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5816] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5815] ptrace(PTRACE_ATTACH, 5823 [pid 5814] exit_group(0 [pid 5813] exit(0 [pid 5812] exit(0 [pid 5816] exit_group(0 [pid 5815] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5814] <... exit_group resumed>) = ? [pid 5816] <... exit_group resumed>) = ? [pid 5815] exit_group(0 [pid 5814] +++ exited with 0 +++ [pid 5816] +++ exited with 0 +++ [pid 5815] <... exit_group resumed>) = ? [pid 5813] <... exit resumed>) = ? [pid 5812] <... exit resumed>) = ? [pid 5815] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5816, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5815, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5812] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5824 attached [pid 5813] +++ exited with 0 +++ [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5824] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5824 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5825 attached [pid 5824] <... set_robust_list resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5825 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] set_robust_list(0x555566297660, 24 [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5825] <... set_robust_list resumed>) = 0 [pid 5824] <... prctl resumed>) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5824] setpgid(0, 0./strace-static-x86_64: Process 5826 attached [pid 5825] <... prctl resumed>) = 0 [pid 5824] <... setpgid resumed>) = 0 [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5826] set_robust_list(0x555566297660, 24 [pid 5825] setpgid(0, 0 [pid 5824] <... openat resumed>) = 3 [pid 5820] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5826 [pid 5826] <... set_robust_list resumed>) = 0 [pid 5825] <... setpgid resumed>) = 0 [pid 5824] write(3, "1000", 4) = 4 [pid 5824] close(3 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5824] <... close resumed>) = 0 [pid 5826] <... prctl resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5824] memfd_create("syzkaller", 0 [pid 5819] <... write resumed>) = 1048576 [pid 5826] setpgid(0, 0 [pid 5825] write(3, "1000", 4 [pid 5824] <... memfd_create resumed>) = 3 [pid 5819] munmap(0x7f9e50600000, 138412032 [pid 5826] <... setpgid resumed>) = 0 [pid 5825] <... write resumed>) = 4 [pid 5824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5819] <... munmap resumed>) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5825] close(3 [pid 5824] <... mmap resumed>) = 0x7f9e50600000 [pid 5826] <... openat resumed>) = 3 [pid 5825] <... close resumed>) = 0 [pid 5825] memfd_create("syzkaller", 0 [pid 5826] write(3, "1000", 4 [pid 5820] <... write resumed>) = 1048576 [pid 5819] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5825] <... memfd_create resumed>) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5826] <... write resumed>) = 4 [pid 5820] munmap(0x7f9e50600000, 138412032 [pid 5819] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5826] close(3 [pid 5824] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5820] <... munmap resumed>) = 0 [pid 5819] close(3 [pid 5826] <... close resumed>) = 0 [pid 5826] memfd_create("syzkaller", 0 [pid 5825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5826] <... memfd_create resumed>) = 3 [pid 5824] <... write resumed>) = 1048576 [pid 5820] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5820] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5826] <... mmap resumed>) = 0x7f9e50600000 [pid 5825] <... write resumed>) = 1048576 [pid 5824] munmap(0x7f9e50600000, 138412032 [pid 5820] close(3 [pid 5819] <... close resumed>) = 0 [pid 5817] exit(0) = ? [pid 5817] +++ exited with 0 +++ [pid 5826] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5819] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5825] munmap(0x7f9e50600000, 138412032 [pid 5824] <... munmap resumed>) = 0 [pid 5820] <... close resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5826] <... write resumed>) = 1048576 [pid 5826] munmap(0x7f9e50600000, 138412032) = 0 [pid 5825] <... munmap resumed>) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5820] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5819] clone(child_stack=NULL, flags=0 [pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5826] close(3 [pid 5820] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5827 attached [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5824] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5824] close(3 [pid 5819] <... clone resumed>) = 5827 [pid 5818] exit(0 [pid 5826] <... close resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=0 [pid 5819] ptrace(PTRACE_ATTACH, 5827 [pid 5818] <... exit resumed>) = ? ./strace-static-x86_64: Process 5828 attached [pid 5826] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5825] close(3 [pid 5819] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5818] +++ exited with 0 +++ [pid 5826] <... openat resumed>) = 3 [pid 5826] clone(child_stack=NULL, flags=0 [pid 5825] <... close resumed>) = 0 [pid 5824] <... close resumed>) = 0 [pid 5820] <... clone resumed>) = 5828 [pid 5819] exit_group(0 [pid 5820] ptrace(PTRACE_ATTACH, 5828./strace-static-x86_64: Process 5829 attached [pid 5825] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5824] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5820] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5819] <... exit_group resumed>) = ? [pid 5824] <... openat resumed>) = 3 [pid 5824] clone(child_stack=NULL, flags=0 [pid 5826] <... clone resumed>) = 5829 [pid 5820] exit_group(0 [pid 5819] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5830 attached [pid 5826] ptrace(PTRACE_ATTACH, 5829 [pid 5825] <... openat resumed>) = 3 [pid 5824] <... clone resumed>) = 5830 [pid 5826] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5820] <... exit_group resumed>) = ? [pid 5089] <... restart_syscall resumed>) = 0 [pid 5824] ptrace(PTRACE_ATTACH, 5830 [pid 5826] exit_group(0 [pid 5824] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5824] exit_group(0) = ? [pid 5824] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5824, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5826] <... exit_group resumed>) = ? [pid 5825] clone(child_stack=NULL, flags=0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5820] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5831 attached [pid 5826] +++ exited with 0 +++ [pid 5825] <... clone resumed>) = 5831 [pid 5825] ptrace(PTRACE_ATTACH, 5831 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5826, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... restart_syscall resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5825] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] exit_group(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5825] <... exit_group resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5821] exit(0) = ? [pid 5825] +++ exited with 0 +++ [pid 5821] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5832 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5832] <... set_robust_list resumed>) = 0 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5835 attached ./strace-static-x86_64: Process 5833 attached ./strace-static-x86_64: Process 5834 attached ) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5834 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5835] set_robust_list(0x555566297660, 24 [pid 5833] set_robust_list(0x555566297660, 24 [pid 5834] set_robust_list(0x555566297660, 24 [pid 5832] setpgid(0, 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5833 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... set_robust_list resumed>) = 0 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5832] <... setpgid resumed>) = 0 [pid 5823] exit(0 [pid 5822] exit(0./strace-static-x86_64: Process 5836 attached [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5823] <... exit resumed>) = ? [pid 5822] <... exit resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5835 [pid 5836] set_robust_list(0x555566297660, 24 [pid 5835] <... prctl resumed>) = 0 [pid 5833] <... prctl resumed>) = 0 [pid 5834] <... prctl resumed>) = 0 [pid 5832] <... openat resumed>) = 3 [pid 5823] +++ exited with 0 +++ [pid 5834] setpgid(0, 0) = 0 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5835] setpgid(0, 0 [pid 5833] setpgid(0, 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] write(3, "1000", 4 [pid 5822] +++ exited with 0 +++ [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] <... setpgid resumed>) = 0 [pid 5833] <... setpgid resumed>) = 0 [pid 5832] <... write resumed>) = 4 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5836 [pid 5836] <... prctl resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] <... openat resumed>) = 3 [pid 5832] close(3 [pid 5836] setpgid(0, 0 [pid 5833] <... openat resumed>) = 3 [pid 5834] write(3, "1000", 4 [pid 5832] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5836] <... setpgid resumed>) = 0 [pid 5833] write(3, "1000", 4 [pid 5834] <... write resumed>) = 4 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5832] memfd_create("syzkaller", 0 [pid 5833] <... write resumed>) = 4 [pid 5835] write(3, "1000", 4 [pid 5834] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... write resumed>) = 4 [pid 5833] close(3 [pid 5834] memfd_create("syzkaller", 0 [pid 5832] <... memfd_create resumed>) = 3 [pid 5835] close(3 [pid 5833] <... close resumed>) = 0 [pid 5836] write(3, "1000", 4 [pid 5835] <... close resumed>) = 0 [pid 5834] <... memfd_create resumed>) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5835] memfd_create("syzkaller", 0 [pid 5833] memfd_create("syzkaller", 0 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] <... write resumed>) = 4 [pid 5833] <... memfd_create resumed>) = 3 [pid 5834] <... mmap resumed>) = 0x7f9e50600000 [pid 5835] <... memfd_create resumed>) = 3 [pid 5832] <... mmap resumed>) = 0x7f9e50600000 [pid 5836] close(3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] <... close resumed>) = 0 [pid 5835] <... mmap resumed>) = 0x7f9e50600000 [pid 5833] <... mmap resumed>) = 0x7f9e50600000 [pid 5834] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5834] <... write resumed>) = 1048576 [pid 5834] munmap(0x7f9e50600000, 138412032 [pid 5836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5835] <... write resumed>) = 1048576 [pid 5832] <... write resumed>) = 1048576 [pid 5833] <... write resumed>) = 1048576 [pid 5832] munmap(0x7f9e50600000, 138412032 [pid 5833] munmap(0x7f9e50600000, 138412032) = 0 [pid 5832] <... munmap resumed>) = 0 [pid 5835] munmap(0x7f9e50600000, 138412032 [pid 5834] <... munmap resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] <... write resumed>) = 1048576 [pid 5835] <... munmap resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5832] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5836] munmap(0x7f9e50600000, 138412032 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5833] close(3 [pid 5834] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] close(3 [pid 5827] exit(0) = ? [pid 5835] close(3 [pid 5836] <... munmap resumed>) = 0 [pid 5832] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5828] exit(0 [pid 5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5832] close(3 [pid 5828] <... exit resumed>) = ? [pid 5836] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5832] <... close resumed>) = 0 [pid 5828] +++ exited with 0 +++ [pid 5827] +++ exited with 0 +++ [pid 5836] close(3 [pid 5829] exit(0) = ? [pid 5835] <... close resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5829] +++ exited with 0 +++ [pid 5833] <... close resumed>) = 0 [pid 5830] exit(0 [pid 5833] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5830] <... exit resumed>) = ? [pid 5833] <... openat resumed>) = 3 [pid 5830] +++ exited with 0 +++ [pid 5833] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5837 attached [pid 5834] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5835] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5834] <... openat resumed>) = 3 [pid 5834] clone(child_stack=NULL, flags=0 [pid 5833] <... clone resumed>) = 5837 [pid 5832] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5833] ptrace(PTRACE_ATTACH, 5837) = -1 EPERM (Operation not permitted) [pid 5833] exit_group(0) = ? ./strace-static-x86_64: Process 5838 attached [pid 5836] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5833] +++ exited with 0 +++ [pid 5832] <... openat resumed>) = 3 [pid 5835] clone(child_stack=NULL, flags=0 [pid 5834] <... clone resumed>) = 5838 [pid 5836] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5834] ptrace(PTRACE_ATTACH, 5838 [pid 5832] clone(child_stack=NULL, flags=0 [pid 5831] exit(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5840 attached [pid 5836] <... openat resumed>) = 3 [pid 5834] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5831] <... exit resumed>) = ? ./strace-static-x86_64: Process 5839 attached [pid 5836] clone(child_stack=NULL, flags=0 [pid 5835] <... clone resumed>) = 5839 [pid 5834] exit_group(0 [pid 5831] +++ exited with 0 +++ [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5835] ptrace(PTRACE_ATTACH, 5839 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5834] <... exit_group resumed>) = ? [pid 5835] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5835] exit_group(0 [pid 5832] <... clone resumed>) = 5840 [pid 5835] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5832] ptrace(PTRACE_ATTACH, 5840) = -1 EPERM (Operation not permitted) [pid 5832] exit_group(0./strace-static-x86_64: Process 5841 attached ) = ? [pid 5836] <... clone resumed>) = 5841 [pid 5835] +++ exited with 0 +++ [pid 5834] +++ exited with 0 +++ [pid 5832] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5836] ptrace(PTRACE_ATTACH, 5841) = -1 EPERM (Operation not permitted) [pid 5836] exit_group(0) = ? [pid 5836] +++ exited with 0 +++ ./strace-static-x86_64: Process 5842 attached [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5842 [pid 5842] set_robust_list(0x555566297660, 24) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5842] <... prctl resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] setpgid(0, 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5842] <... setpgid resumed>) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5843 attached ) = 3 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5843 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] set_robust_list(0x555566297660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... set_robust_list resumed>) = 0 [pid 5842] write(3, "1000", 4 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... write resumed>) = 4 [pid 5842] close(3 [pid 5843] <... prctl resumed>) = 0 [pid 5842] <... close resumed>) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5842] memfd_create("syzkaller", 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... memfd_create resumed>) = 3 [pid 5843] <... openat resumed>) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5845 attached ./strace-static-x86_64: Process 5844 attached [pid 5843] write(3, "1000", 4 [pid 5842] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5845] set_robust_list(0x555566297660, 24 [pid 5844] set_robust_list(0x555566297660, 24 [pid 5843] <... write resumed>) = 4 [pid 5843] close(3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5845 [pid 5843] <... close resumed>) = 0 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5843] memfd_create("syzkaller", 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5844 [pid 5843] <... memfd_create resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] <... prctl resumed>) = 0 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] <... mmap resumed>) = 0x7f9e50600000 [pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5846 attached [pid 5845] setpgid(0, 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5846] set_robust_list(0x555566297660, 24 [pid 5845] <... setpgid resumed>) = 0 [pid 5844] <... prctl resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5846 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] setpgid(0, 0 [pid 5842] <... write resumed>) = 1048576 [pid 5846] <... prctl resumed>) = 0 [pid 5844] <... setpgid resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] setpgid(0, 0 [pid 5845] <... openat resumed>) = 3 [pid 5846] <... setpgid resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] write(3, "1000", 4 [pid 5844] <... openat resumed>) = 3 [pid 5846] <... openat resumed>) = 3 [pid 5845] <... write resumed>) = 4 [pid 5846] write(3, "1000", 4 [pid 5845] close(3 [pid 5846] <... write resumed>) = 4 [pid 5845] <... close resumed>) = 0 [pid 5844] write(3, "1000", 4 [pid 5846] close(3 [pid 5845] memfd_create("syzkaller", 0 [pid 5844] <... write resumed>) = 4 [pid 5846] <... close resumed>) = 0 [pid 5844] close(3 [pid 5843] <... write resumed>) = 1048576 [pid 5846] memfd_create("syzkaller", 0 [pid 5845] <... memfd_create resumed>) = 3 [pid 5844] <... close resumed>) = 0 [pid 5846] <... memfd_create resumed>) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5845] <... mmap resumed>) = 0x7f9e50600000 [pid 5844] memfd_create("syzkaller", 0 [pid 5842] munmap(0x7f9e50600000, 138412032) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5842] close(3 [pid 5843] munmap(0x7f9e50600000, 138412032 [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5844] <... memfd_create resumed>) = 3 [pid 5843] <... munmap resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5842] <... close resumed>) = 0 [pid 5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5843] close(3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5842] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5842] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5847 attached ) = 5847 [pid 5842] ptrace(PTRACE_ATTACH, 5847 [pid 5843] <... close resumed>) = 0 [pid 5842] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ [pid 5843] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5843] clone(child_stack=NULL, flags=0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached ./strace-static-x86_64: Process 5848 attached [pid 5846] <... write resumed>) = 1048576 [pid 5845] <... write resumed>) = 1048576 [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5843] <... clone resumed>) = 5848 [pid 5849] set_robust_list(0x555566297660, 24 [pid 5846] munmap(0x7f9e50600000, 138412032 [pid 5845] munmap(0x7f9e50600000, 138412032 [pid 5843] ptrace(PTRACE_ATTACH, 5848 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5849 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5846] <... munmap resumed>) = 0 [pid 5845] <... munmap resumed>) = 0 [pid 5843] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0 [pid 5843] exit_group(0 [pid 5849] <... setpgid resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5843] <... exit_group resumed>) = ? [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5845] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5843] +++ exited with 0 +++ [pid 5849] <... openat resumed>) = 3 [pid 5846] close(3 [pid 5845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5844] <... write resumed>) = 1048576 [pid 5844] munmap(0x7f9e50600000, 138412032 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5846] <... close resumed>) = 0 [pid 5845] close(3 [pid 5844] <... munmap resumed>) = 0 [pid 5849] write(3, "1000", 4 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5849] <... write resumed>) = 4 [pid 5844] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5844] close(3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5849] close(3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... close resumed>) = 0 [pid 5849] memfd_create("syzkaller", 0) = 3 [pid 5837] exit(0 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] <... exit resumed>) = ? ./strace-static-x86_64: Process 5850 attached [pid 5837] +++ exited with 0 +++ [pid 5850] set_robust_list(0x555566297660, 24 [pid 5849] <... mmap resumed>) = 0x7f9e50600000 [pid 5844] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5850 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5844] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5846] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0 [pid 5846] <... openat resumed>) = 3 [pid 5845] <... close resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 5850] <... setpgid resumed>) = 0 [pid 5846] clone(child_stack=NULL, flags=0 [pid 5844] clone(child_stack=NULL, flags=0 [pid 5838] exit(0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5838] <... exit resumed>) = ? ./strace-static-x86_64: Process 5852 attached ./strace-static-x86_64: Process 5851 attached [pid 5850] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=0 [pid 5840] exit(0 [pid 5838] +++ exited with 0 +++ [pid 5850] write(3, "1000", 4 [pid 5846] <... clone resumed>) = 5851 [pid 5844] <... clone resumed>) = 5852 [pid 5841] exit(0 [pid 5840] <... exit resumed>) = ? [pid 5839] exit(0./strace-static-x86_64: Process 5853 attached [pid 5850] <... write resumed>) = 4 [pid 5846] ptrace(PTRACE_ATTACH, 5851 [pid 5844] ptrace(PTRACE_ATTACH, 5852 [pid 5841] <... exit resumed>) = ? [pid 5840] +++ exited with 0 +++ [pid 5839] <... exit resumed>) = ? [pid 5850] close(3 [pid 5846] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5839] +++ exited with 0 +++ [pid 5850] <... close resumed>) = 0 [pid 5846] exit_group(0 [pid 5844] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5850] memfd_create("syzkaller", 0 [pid 5846] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>) = 5853 [pid 5844] exit_group(0 [pid 5841] +++ exited with 0 +++ [pid 5850] <... memfd_create resumed>) = 3 [pid 5846] +++ exited with 0 +++ [pid 5845] ptrace(PTRACE_ATTACH, 5853 [pid 5844] <... exit_group resumed>) = ? [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5849] <... write resumed>) = 1048576 [pid 5845] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5850] <... mmap resumed>) = 0x7f9e50600000 [pid 5845] exit_group(0 [pid 5844] +++ exited with 0 +++ [pid 5845] <... exit_group resumed>) = ? [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5849] munmap(0x7f9e50600000, 138412032 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5845] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5849] <... munmap resumed>) = 0 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] <... restart_syscall resumed>) = 0 [pid 5849] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] close(3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5854 attached [pid 5850] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5854] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5854 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5854] <... set_robust_list resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5855 [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached [pid 5849] <... close resumed>) = 0 ./strace-static-x86_64: Process 5856 attached [pid 5855] set_robust_list(0x555566297660, 24 [pid 5854] <... prctl resumed>) = 0 [pid 5850] <... write resumed>) = 1048576 [pid 5856] set_robust_list(0x555566297660, 24 [pid 5855] <... set_robust_list resumed>) = 0 [pid 5854] setpgid(0, 0 [pid 5850] munmap(0x7f9e50600000, 138412032 [pid 5849] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5856] <... set_robust_list resumed>) = 0 [pid 5854] <... setpgid resumed>) = 0 [pid 5850] <... munmap resumed>) = 0 [pid 5849] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5856 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5856] <... prctl resumed>) = 0 [pid 5855] <... prctl resumed>) = 0 [pid 5854] <... openat resumed>) = 3 [pid 5850] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5857 attached [pid 5856] setpgid(0, 0 [pid 5855] setpgid(0, 0 [pid 5854] write(3, "1000", 4 [pid 5850] close(3 [pid 5856] <... setpgid resumed>) = 0 [pid 5855] <... setpgid resumed>) = 0 [pid 5854] <... write resumed>) = 4 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5856] <... openat resumed>) = 3 [pid 5854] close(3 [pid 5855] <... openat resumed>) = 3 [pid 5854] <... close resumed>) = 0 [pid 5849] <... clone resumed>) = 5857 [pid 5856] write(3, "1000", 4 [pid 5855] write(3, "1000", 4 [pid 5854] memfd_create("syzkaller", 0 [pid 5849] ptrace(PTRACE_ATTACH, 5857 [pid 5856] <... write resumed>) = 4 [pid 5855] <... write resumed>) = 4 [pid 5849] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5856] close(3 [pid 5855] close(3 [pid 5854] <... memfd_create resumed>) = 3 [pid 5849] exit_group(0 [pid 5856] <... close resumed>) = 0 [pid 5855] <... close resumed>) = 0 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5849] <... exit_group resumed>) = ? [pid 5856] memfd_create("syzkaller", 0 [pid 5855] memfd_create("syzkaller", 0 [pid 5854] <... mmap resumed>) = 0x7f9e50600000 [pid 5850] <... close resumed>) = 0 [pid 5849] +++ exited with 0 +++ [pid 5856] <... memfd_create resumed>) = 3 [pid 5855] <... memfd_create resumed>) = 3 [pid 5854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5850] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5850] <... openat resumed>) = 3 [pid 5855] <... mmap resumed>) = 0x7f9e50600000 [pid 5850] clone(child_stack=NULL, flags=0 [pid 5856] <... mmap resumed>) = 0x7f9e50600000 [pid 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5850] <... clone resumed>) = 5858 ./strace-static-x86_64: Process 5858 attached [pid 5850] ptrace(PTRACE_ATTACH, 5858) = -1 EPERM (Operation not permitted) [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5850] exit_group(0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5850] <... exit_group resumed>) = ? [pid 5847] exit(0) = ? [pid 5850] +++ exited with 0 +++ [pid 5847] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5859 ./strace-static-x86_64: Process 5859 attached [pid 5856] <... write resumed>) = 1048576 [pid 5855] <... write resumed>) = 1048576 [pid 5854] <... write resumed>) = 1048576 [pid 5859] set_robust_list(0x555566297660, 24 [pid 5855] munmap(0x7f9e50600000, 138412032 [pid 5859] <... set_robust_list resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5854] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5860 attached [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5860 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5860] set_robust_list(0x555566297660, 24 [pid 5859] <... prctl resumed>) = 0 [pid 5854] <... munmap resumed>) = 0 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5859] setpgid(0, 0 [pid 5855] <... munmap resumed>) = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5859] <... setpgid resumed>) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5860] <... prctl resumed>) = 0 [pid 5860] setpgid(0, 0 [pid 5855] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5854] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5860] <... setpgid resumed>) = 0 [pid 5855] close(3 [pid 5854] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5848] exit(0 [pid 5854] close(3 [pid 5848] <... exit resumed>) = ? [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5859] <... openat resumed>) = 3 [pid 5856] munmap(0x7f9e50600000, 138412032 [pid 5855] <... close resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5848] +++ exited with 0 +++ [pid 5860] <... openat resumed>) = 3 [pid 5859] write(3, "1000", 4 [pid 5860] write(3, "1000", 4 [pid 5859] <... write resumed>) = 4 [pid 5855] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5860] <... write resumed>) = 4 [pid 5859] close(3 [pid 5860] close(3 [pid 5859] <... close resumed>) = 0 [pid 5856] <... munmap resumed>) = 0 [pid 5855] <... openat resumed>) = 3 [pid 5860] <... close resumed>) = 0 [pid 5855] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5861 attached [pid 5860] memfd_create("syzkaller", 0 [pid 5859] memfd_create("syzkaller", 0 [pid 5856] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5854] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5860] <... memfd_create resumed>) = 3 [pid 5859] <... memfd_create resumed>) = 3 [pid 5856] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5855] <... clone resumed>) = 5861 [pid 5854] <... openat resumed>) = 3 [pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5856] close(3 [pid 5855] ptrace(PTRACE_ATTACH, 5861 [pid 5860] <... mmap resumed>) = 0x7f9e50600000 [pid 5859] <... mmap resumed>) = 0x7f9e50600000 [pid 5856] <... close resumed>) = 0 [pid 5855] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5854] clone(child_stack=NULL, flags=0 [pid 5856] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5862 attached [pid 5860] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5855] exit_group(0 [pid 5856] <... openat resumed>) = 3 [pid 5855] <... exit_group resumed>) = ? [pid 5851] exit(0 [pid 5854] <... clone resumed>) = 5862 [pid 5854] ptrace(PTRACE_ATTACH, 5862 [pid 5853] exit(0 [pid 5856] clone(child_stack=NULL, flags=0 [pid 5854] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5853] <... exit resumed>) = ? [pid 5852] exit(0 [pid 5851] <... exit resumed>) = ? ./strace-static-x86_64: Process 5863 attached [pid 5855] +++ exited with 0 +++ [pid 5854] exit_group(0 [pid 5853] +++ exited with 0 +++ [pid 5852] <... exit resumed>) = ? [pid 5860] <... write resumed>) = 1048576 [pid 5859] <... write resumed>) = 1048576 [pid 5854] <... exit_group resumed>) = ? [pid 5852] +++ exited with 0 +++ [pid 5851] +++ exited with 0 +++ [pid 5860] munmap(0x7f9e50600000, 138412032) = 0 [pid 5856] <... clone resumed>) = 5863 [pid 5854] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5860] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5856] ptrace(PTRACE_ATTACH, 5863 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5860] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5856] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5860] close(3 [pid 5856] exit_group(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5856] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5864 attached [pid 5856] +++ exited with 0 +++ [pid 5864] set_robust_list(0x555566297660, 24 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5864] <... set_robust_list resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5864 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5864] <... prctl resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5864] setpgid(0, 0 [pid 5860] <... close resumed>) = 0 ./strace-static-x86_64: Process 5865 attached ./strace-static-x86_64: Process 5866 attached [pid 5864] <... setpgid resumed>) = 0 [pid 5860] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5859] munmap(0x7f9e50600000, 138412032 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5865 [pid 5866] set_robust_list(0x555566297660, 24 [pid 5865] set_robust_list(0x555566297660, 24 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5860] <... openat resumed>) = 3 [pid 5859] <... munmap resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5866 [pid 5866] <... set_robust_list resumed>) = 0 [pid 5865] <... set_robust_list resumed>) = 0 [pid 5864] <... openat resumed>) = 3 [pid 5860] clone(child_stack=NULL, flags=0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5866] <... prctl resumed>) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5865] <... prctl resumed>) = 0 [pid 5864] write(3, "1000", 4 [pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5865] setpgid(0, 0 [pid 5864] <... write resumed>) = 4 [pid 5860] <... clone resumed>) = 5867 ./strace-static-x86_64: Process 5867 attached [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5865] <... setpgid resumed>) = 0 [pid 5859] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5866] <... openat resumed>) = 3 [pid 5864] close(3 [pid 5860] ptrace(PTRACE_ATTACH, 5867 [pid 5859] close(3 [pid 5866] write(3, "1000", 4 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5864] <... close resumed>) = 0 [pid 5860] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5866] <... write resumed>) = 4 [pid 5866] close(3) = 0 [pid 5865] <... openat resumed>) = 3 [pid 5864] memfd_create("syzkaller", 0 [pid 5860] exit_group(0 [pid 5865] write(3, "1000", 4 [pid 5864] <... memfd_create resumed>) = 3 [pid 5860] <... exit_group resumed>) = ? [pid 5866] memfd_create("syzkaller", 0 [pid 5865] <... write resumed>) = 4 [pid 5866] <... memfd_create resumed>) = 3 [pid 5865] close(3 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5859] <... close resumed>) = 0 [pid 5857] exit(0 [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5865] <... close resumed>) = 0 [pid 5864] <... mmap resumed>) = 0x7f9e50600000 [pid 5859] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5857] <... exit resumed>) = ? [pid 5866] <... mmap resumed>) = 0x7f9e50600000 [pid 5865] memfd_create("syzkaller", 0 [pid 5859] <... openat resumed>) = 3 [pid 5857] +++ exited with 0 +++ [pid 5860] +++ exited with 0 +++ [pid 5865] <... memfd_create resumed>) = 3 [pid 5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5859] clone(child_stack=NULL, flags=0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5866] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5089] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5868 attached ) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5869 attached [pid 5859] <... clone resumed>) = 5868 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5869 [pid 5859] ptrace(PTRACE_ATTACH, 5868) = -1 EPERM (Operation not permitted) [pid 5859] exit_group(0) = ? [pid 5869] set_robust_list(0x555566297660, 24) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5859] +++ exited with 0 +++ [pid 5869] <... openat resumed>) = 3 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5869] write(3, "1000", 4) = 4 [pid 5858] exit(0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5869] close(3 [pid 5858] <... exit resumed>) = ? [pid 5869] <... close resumed>) = 0 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5858] +++ exited with 0 +++ [pid 5869] memfd_create("syzkaller", 0 [pid 5866] <... write resumed>) = 1048576 [pid 5864] <... write resumed>) = 1048576 [pid 5869] <... memfd_create resumed>) = 3 [pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5865] <... write resumed>) = 1048576 [pid 5864] munmap(0x7f9e50600000, 138412032 [pid 5869] <... mmap resumed>) = 0x7f9e50600000 [pid 5866] munmap(0x7f9e50600000, 138412032 [pid 5865] munmap(0x7f9e50600000, 138412032 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5866] <... munmap resumed>) = 0 [pid 5865] <... munmap resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5865] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5866] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5870 attached ) = -1 EBUSY (Device or resource busy) [pid 5865] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5864] <... munmap resumed>) = 0 [pid 5870] set_robust_list(0x555566297660, 24 [pid 5865] close(3 [pid 5864] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5870 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5866] close(3 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5866] <... close resumed>) = 0 [pid 5865] <... close resumed>) = 0 [pid 5864] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5870] <... prctl resumed>) = 0 [pid 5870] setpgid(0, 0 [pid 5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5865] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5864] close(3 [pid 5870] <... setpgid resumed>) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5870] write(3, "1000", 4) = 4 [pid 5870] close(3) = 0 [pid 5870] memfd_create("syzkaller", 0) = 3 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5866] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5865] <... openat resumed>) = 3 [pid 5866] <... openat resumed>) = 3 [pid 5865] clone(child_stack=NULL, flags=0 [pid 5864] <... close resumed>) = 0 [pid 5864] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5861] exit(0 [pid 5864] <... openat resumed>) = 3 [pid 5861] <... exit resumed>) = ? [pid 5866] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5871 attached [pid 5869] <... write resumed>) = 1048576 [pid 5864] clone(child_stack=NULL, flags=0 [pid 5861] +++ exited with 0 +++ ./strace-static-x86_64: Process 5872 attached [pid 5866] <... clone resumed>) = 5872 [pid 5866] ptrace(PTRACE_ATTACH, 5872 [pid 5865] <... clone resumed>) = 5871 [pid 5869] munmap(0x7f9e50600000, 138412032 [pid 5866] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5865] ptrace(PTRACE_ATTACH, 5871 [pid 5864] <... clone resumed>) = 5873 [pid 5866] exit_group(0 [pid 5865] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5865] exit_group(0 [pid 5864] ptrace(PTRACE_ATTACH, 5873./strace-static-x86_64: Process 5873 attached [pid 5869] <... munmap resumed>) = 0 [pid 5866] <... exit_group resumed>) = ? [pid 5865] <... exit_group resumed>) = ? [pid 5864] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5866] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5865] +++ exited with 0 +++ [pid 5864] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5874 attached [pid 5869] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5864] <... exit_group resumed>) = ? [pid 5869] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5874] set_robust_list(0x555566297660, 24 [pid 5869] close(3 [pid 5864] +++ exited with 0 +++ [pid 5862] exit(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5874] <... set_robust_list resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5874 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5862] <... exit resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5870] <... write resumed>) = 1048576 [pid 5869] <... close resumed>) = 0 [pid 5862] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5875 attached [pid 5874] <... prctl resumed>) = 0 [pid 5869] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5863] exit(0 [pid 5875] set_robust_list(0x555566297660, 24 [pid 5874] setpgid(0, 0./strace-static-x86_64: Process 5876 attached [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] <... setpgid resumed>) = 0 [pid 5869] <... openat resumed>) = 3 [pid 5863] <... exit resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5875 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5876 [pid 5863] +++ exited with 0 +++ [pid 5876] set_robust_list(0x555566297660, 24 [pid 5875] <... prctl resumed>) = 0 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5875] setpgid(0, 0 [pid 5874] <... openat resumed>) = 3 [pid 5869] clone(child_stack=NULL, flags=0 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... setpgid resumed>) = 0 [pid 5870] munmap(0x7f9e50600000, 138412032 [pid 5876] <... prctl resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] write(3, "1000", 4 [pid 5876] setpgid(0, 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] <... write resumed>) = 4 [pid 5869] <... clone resumed>) = 5877 ./strace-static-x86_64: Process 5877 attached [pid 5876] <... setpgid resumed>) = 0 [pid 5875] write(3, "1000", 4 [pid 5874] close(3 [pid 5870] <... munmap resumed>) = 0 [pid 5869] ptrace(PTRACE_ATTACH, 5877 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... write resumed>) = 4 [pid 5874] <... close resumed>) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5869] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5875] close(3 [pid 5874] memfd_create("syzkaller", 0 [pid 5870] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5869] exit_group(0 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5874] <... memfd_create resumed>) = 3 [pid 5870] close(3 [pid 5869] <... exit_group resumed>) = ? [pid 5876] write(3, "1000", 4 [pid 5875] memfd_create("syzkaller", 0 [pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5870] <... close resumed>) = 0 [pid 5869] +++ exited with 0 +++ [pid 5876] <... write resumed>) = 4 [pid 5874] <... mmap resumed>) = 0x7f9e50600000 [pid 5876] close(3 [pid 5875] <... memfd_create resumed>) = 3 [pid 5876] <... close resumed>) = 0 [pid 5874] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5870] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] memfd_create("syzkaller", 0 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5870] <... openat resumed>) = 3 [pid 5867] exit(0 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5876] <... memfd_create resumed>) = 3 [pid 5870] clone(child_stack=NULL, flags=0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5867] <... exit resumed>) = ? [pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5875] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5878 attached ./strace-static-x86_64: Process 5879 attached [pid 5876] <... mmap resumed>) = 0x7f9e50600000 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5874] <... write resumed>) = 1048576 [pid 5870] <... clone resumed>) = 5878 [pid 5867] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5879 [pid 5879] set_robust_list(0x555566297660, 24 [pid 5874] munmap(0x7f9e50600000, 138412032 [pid 5870] ptrace(PTRACE_ATTACH, 5878 [pid 5879] <... set_robust_list resumed>) = 0 [pid 5874] <... munmap resumed>) = 0 [pid 5870] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5868] exit(0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] <... exit resumed>) = ? [pid 5879] <... prctl resumed>) = 0 [pid 5870] exit_group(0 [pid 5879] setpgid(0, 0 [pid 5874] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5870] <... exit_group resumed>) = ? [pid 5879] <... setpgid resumed>) = 0 [pid 5874] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5870] +++ exited with 0 +++ [pid 5868] +++ exited with 0 +++ [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] close(3 [pid 5879] <... openat resumed>) = 3 [pid 5875] <... write resumed>) = 1048576 [pid 5874] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=0} --- [pid 5876] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5875] munmap(0x7f9e50600000, 138412032 [pid 5879] write(3, "1000", 4) = 4 [pid 5879] close(3) = 0 [pid 5879] memfd_create("syzkaller", 0) = 3 [pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5876] <... write resumed>) = 1048576 [pid 5879] <... write resumed>) = 1048576 [pid 5876] munmap(0x7f9e50600000, 138412032 [pid 5875] <... munmap resumed>) = 0 [pid 5874] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5876] <... munmap resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5879] munmap(0x7f9e50600000, 138412032 [pid 5876] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5875] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5874] <... openat resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5879] <... munmap resumed>) = 0 [pid 5876] close(3 [pid 5874] clone(child_stack=NULL, flags=0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached [pid 5879] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5879] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5875] close(3 [pid 5879] close(3 [pid 5874] <... clone resumed>) = 5880 [pid 5874] ptrace(PTRACE_ATTACH, 5880./strace-static-x86_64: Process 5881 attached [pid 5879] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5874] exit_group(0) = ? [pid 5881] set_robust_list(0x555566297660, 24 [pid 5876] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5879] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5881 [pid 5875] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5881] <... set_robust_list resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] clone(child_stack=NULL, flags=0 [pid 5875] <... openat resumed>) = 3 [pid 5881] <... prctl resumed>) = 0 [pid 5881] setpgid(0, 0 [pid 5874] +++ exited with 0 +++ [pid 5879] <... openat resumed>) = 3 [pid 5881] <... setpgid resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5881] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5879] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5883 attached ./strace-static-x86_64: Process 5882 attached [pid 5881] write(3, "1000", 4 [pid 5871] exit(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5885 attached ./strace-static-x86_64: Process 5884 attached [pid 5881] <... write resumed>) = 4 [pid 5876] <... clone resumed>) = 5882 [pid 5875] <... clone resumed>) = 5883 [pid 5873] exit(0 [pid 5872] exit(0 [pid 5871] <... exit resumed>) = ? [pid 5884] set_robust_list(0x555566297660, 24 [pid 5881] close(3 [pid 5876] ptrace(PTRACE_ATTACH, 5882 [pid 5875] ptrace(PTRACE_ATTACH, 5883 [pid 5873] <... exit resumed>) = ? [pid 5872] <... exit resumed>) = ? [pid 5875] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5872] +++ exited with 0 +++ [pid 5871] +++ exited with 0 +++ [pid 5881] <... close resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5884 [pid 5876] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5875] exit_group(0 [pid 5884] <... set_robust_list resumed>) = 0 [pid 5881] memfd_create("syzkaller", 0 [pid 5879] <... clone resumed>) = 5885 [pid 5876] exit_group(0 [pid 5875] <... exit_group resumed>) = ? [pid 5873] +++ exited with 0 +++ [pid 5884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5881] <... memfd_create resumed>) = 3 [pid 5879] ptrace(PTRACE_ATTACH, 5885 [pid 5876] <... exit_group resumed>) = ? [pid 5884] <... prctl resumed>) = 0 [pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5879] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5875] +++ exited with 0 +++ [pid 5884] setpgid(0, 0 [pid 5881] <... mmap resumed>) = 0x7f9e50600000 [pid 5879] exit_group(0 [pid 5876] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5884] <... setpgid resumed>) = 0 [pid 5879] <... exit_group resumed>) = ? [pid 5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5879] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5884] <... openat resumed>) = 3 [pid 5877] exit(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5877] <... exit resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5884] write(3, "1000", 4./strace-static-x86_64: Process 5886 attached [pid 5877] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5887 attached [pid 5886] set_robust_list(0x555566297660, 24 [pid 5884] <... write resumed>) = 4 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5886 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5884] close(3) = 0 [pid 5887] set_robust_list(0x555566297660, 24 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5887] <... set_robust_list resumed>) = 0 [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5884] memfd_create("syzkaller", 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5886] <... prctl resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5887 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5886] setpgid(0, 0) = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5888 attached [pid 5888] set_robust_list(0x555566297660, 24 [pid 5886] <... openat resumed>) = 3 [pid 5888] <... set_robust_list resumed>) = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5886] write(3, "1000", 4 [pid 5888] <... prctl resumed>) = 0 [pid 5886] <... write resumed>) = 4 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5888 [pid 5888] setpgid(0, 0 [pid 5886] close(3 [pid 5881] <... write resumed>) = 1048576 [pid 5888] <... setpgid resumed>) = 0 [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5886] <... close resumed>) = 0 [pid 5884] <... memfd_create resumed>) = 3 [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5886] memfd_create("syzkaller", 0 [pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5888] <... openat resumed>) = 3 [pid 5887] <... prctl resumed>) = 0 [pid 5886] <... memfd_create resumed>) = 3 [pid 5884] <... mmap resumed>) = 0x7f9e50600000 [pid 5881] munmap(0x7f9e50600000, 138412032 [pid 5888] write(3, "1000", 4 [pid 5887] setpgid(0, 0 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5881] <... munmap resumed>) = 0 [pid 5888] <... write resumed>) = 4 [pid 5887] <... setpgid resumed>) = 0 [pid 5886] <... mmap resumed>) = 0x7f9e50600000 [pid 5881] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5888] close(3 [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5881] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5888] <... close resumed>) = 0 [pid 5888] memfd_create("syzkaller", 0 [pid 5884] <... write resumed>) = 1048576 [pid 5888] <... memfd_create resumed>) = 3 [pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5887] <... openat resumed>) = 3 [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5884] munmap(0x7f9e50600000, 138412032 [pid 5881] close(3 [pid 5888] <... mmap resumed>) = 0x7f9e50600000 [pid 5884] <... munmap resumed>) = 0 [pid 5878] exit(0) = ? [pid 5878] +++ exited with 0 +++ [pid 5884] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5884] close(3 [pid 5887] write(3, "1000", 4) = 4 [pid 5884] <... close resumed>) = 0 [pid 5881] <... close resumed>) = 0 [pid 5888] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5887] close(3) = 0 [pid 5887] memfd_create("syzkaller", 0 [pid 5884] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5888] <... write resumed>) = 1048576 [pid 5887] <... memfd_create resumed>) = 3 [pid 5886] <... write resumed>) = 1048576 [pid 5881] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5888] munmap(0x7f9e50600000, 138412032 [pid 5887] <... mmap resumed>) = 0x7f9e50600000 [pid 5886] munmap(0x7f9e50600000, 138412032 [pid 5884] <... openat resumed>) = 3 [pid 5881] <... openat resumed>) = 3 [pid 5888] <... munmap resumed>) = 0 [pid 5886] <... munmap resumed>) = 0 [pid 5884] clone(child_stack=NULL, flags=0 [pid 5881] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5890 attached ./strace-static-x86_64: Process 5889 attached [pid 5888] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5886] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5888] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5886] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5884] <... clone resumed>) = 5890 [pid 5881] <... clone resumed>) = 5889 [pid 5880] exit(0 [pid 5886] close(3 [pid 5884] ptrace(PTRACE_ATTACH, 5890 [pid 5880] <... exit resumed>) = ? [pid 5888] close(3 [pid 5887] <... write resumed>) = 1048576 [pid 5886] <... close resumed>) = 0 [pid 5884] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5881] ptrace(PTRACE_ATTACH, 5889 [pid 5880] +++ exited with 0 +++ [pid 5887] munmap(0x7f9e50600000, 138412032 [pid 5886] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5887] <... munmap resumed>) = 0 [pid 5886] <... openat resumed>) = 3 [pid 5884] exit_group(0 [pid 5881] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5881] exit_group(0 [pid 5884] <... exit_group resumed>) = ? [pid 5881] <... exit_group resumed>) = ? [pid 5886] clone(child_stack=NULL, flags=0 [pid 5887] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5881] +++ exited with 0 +++ [pid 5884] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5887] close(3 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5891 attached [pid 5888] <... close resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5886] <... clone resumed>) = 5891 [pid 5883] exit(0 [pid 5882] exit(0 [pid 5883] <... exit resumed>) = ? [pid 5886] ptrace(PTRACE_ATTACH, 5891 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5885] exit(0) = ? [pid 5888] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5887] <... close resumed>) = 0 [pid 5886] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5885] +++ exited with 0 +++ [pid 5883] +++ exited with 0 +++ [pid 5882] <... exit resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5887] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5888] <... openat resumed>) = 3 [pid 5888] clone(child_stack=NULL, flags=0 [pid 5886] exit_group(0./strace-static-x86_64: Process 5892 attached ./strace-static-x86_64: Process 5894 attached [pid 5887] <... openat resumed>) = 3 [pid 5886] <... exit_group resumed>) = ? [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5892 [pid 5892] set_robust_list(0x555566297660, 24./strace-static-x86_64: Process 5893 attached ) = 0 [pid 5882] +++ exited with 0 +++ [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5888] <... clone resumed>) = 5893 [pid 5894] set_robust_list(0x555566297660, 24) = 0 [pid 5892] <... prctl resumed>) = 0 [pid 5887] clone(child_stack=NULL, flags=0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5894 [pid 5888] ptrace(PTRACE_ATTACH, 5893) = -1 EPERM (Operation not permitted) [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5888] exit_group(0 [pid 5892] setpgid(0, 0 [pid 5888] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5895 attached [pid 5894] <... prctl resumed>) = 0 [pid 5892] <... setpgid resumed>) = 0 [pid 5886] +++ exited with 0 +++ [pid 5894] setpgid(0, 0 [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5888] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5888, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5887] <... clone resumed>) = 5895 [pid 5894] <... setpgid resumed>) = 0 [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5892] <... openat resumed>) = 3 [pid 5887] ptrace(PTRACE_ATTACH, 5895 [pid 5892] write(3, "1000", 4 [pid 5894] <... openat resumed>) = 3 [pid 5887] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5892] <... write resumed>) = 4 [pid 5892] close(3) = 0 [pid 5894] write(3, "1000", 4 [pid 5892] memfd_create("syzkaller", 0 [pid 5887] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5894] <... write resumed>) = 4 [pid 5892] <... memfd_create resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5894] close(3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5894] <... close resumed>) = 0 [pid 5887] <... exit_group resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5894] memfd_create("syzkaller", 0) = 3 [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5894] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5896 attached ./strace-static-x86_64: Process 5897 attached [pid 5894] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5892] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5887] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5896 [pid 5897] set_robust_list(0x555566297660, 24) = 0 [pid 5896] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5897 [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5896] <... set_robust_list resumed>) = 0 [pid 5897] <... prctl resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5897] setpgid(0, 0 [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5897] <... setpgid resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5896] <... prctl resumed>) = 0 [pid 5896] setpgid(0, 0) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5896] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5898 attached [pid 5897] <... openat resumed>) = 3 [pid 5898] set_robust_list(0x555566297660, 24 [pid 5897] write(3, "1000", 4 [pid 5896] write(3, "1000", 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5898 [pid 5897] <... write resumed>) = 4 [pid 5896] <... write resumed>) = 4 [pid 5897] close(3) = 0 [pid 5896] close(3 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5897] memfd_create("syzkaller", 0 [pid 5896] <... close resumed>) = 0 [pid 5896] memfd_create("syzkaller", 0 [pid 5894] <... write resumed>) = 1048576 [pid 5894] munmap(0x7f9e50600000, 138412032 [pid 5898] <... prctl resumed>) = 0 [pid 5896] <... memfd_create resumed>) = 3 [pid 5898] setpgid(0, 0 [pid 5897] <... memfd_create resumed>) = 3 [pid 5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5894] <... munmap resumed>) = 0 [pid 5896] <... mmap resumed>) = 0x7f9e50600000 [pid 5898] <... setpgid resumed>) = 0 [pid 5897] <... mmap resumed>) = 0x7f9e50600000 [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5894] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5898] write(3, "1000", 4) = 4 [pid 5898] close(3) = 0 [pid 5898] memfd_create("syzkaller", 0 [pid 5892] <... write resumed>) = 1048576 [pid 5894] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5894] close(3 [pid 5898] <... memfd_create resumed>) = 3 [pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5898] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5894] <... close resumed>) = 0 [pid 5897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5892] munmap(0x7f9e50600000, 138412032 [pid 5896] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5894] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5892] <... munmap resumed>) = 0 [pid 5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5898] <... write resumed>) = 1048576 [pid 5894] <... openat resumed>) = 3 [pid 5898] munmap(0x7f9e50600000, 138412032 [pid 5897] <... write resumed>) = 1048576 [pid 5896] <... write resumed>) = 1048576 [pid 5894] clone(child_stack=NULL, flags=0 [pid 5892] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5898] <... munmap resumed>) = 0 [pid 5897] munmap(0x7f9e50600000, 138412032 [pid 5896] munmap(0x7f9e50600000, 138412032 [pid 5892] close(3 [pid 5898] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5897] <... munmap resumed>) = 0 [pid 5898] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5898] close(3 [pid 5897] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5899 attached [pid 5896] <... munmap resumed>) = 0 [pid 5892] <... close resumed>) = 0 [pid 5889] exit(0 [pid 5892] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5889] <... exit resumed>) = ? [pid 5898] <... close resumed>) = 0 [pid 5897] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5896] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5894] <... clone resumed>) = 5899 [pid 5890] exit(0 [pid 5898] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5897] close(3 [pid 5896] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5894] ptrace(PTRACE_ATTACH, 5899 [pid 5892] <... openat resumed>) = 3 [pid 5890] <... exit resumed>) = ? [pid 5889] +++ exited with 0 +++ [pid 5894] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5892] clone(child_stack=NULL, flags=0 [pid 5894] exit_group(0) = ? ./strace-static-x86_64: Process 5900 attached [pid 5897] <... close resumed>) = 0 [pid 5894] +++ exited with 0 +++ [pid 5896] close(3 [pid 5892] <... clone resumed>) = 5900 [pid 5890] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5892] ptrace(PTRACE_ATTACH, 5900) = -1 EPERM (Operation not permitted) [pid 5898] <... openat resumed>) = 3 [pid 5897] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5896] <... close resumed>) = 0 [pid 5896] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5896] clone(child_stack=NULL, flags=0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5898] clone(child_stack=NULL, flags=0 [pid 5897] <... openat resumed>) = 3 [pid 5892] exit_group(0 [pid 5897] clone(child_stack=NULL, flags=0 [pid 5892] <... exit_group resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5901 attached ./strace-static-x86_64: Process 5902 attached [pid 5892] +++ exited with 0 +++ [pid 5891] exit(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5903 attached [pid 5898] <... clone resumed>) = 5903 [pid 5897] <... clone resumed>) = 5901 [pid 5896] <... clone resumed>) = 5902 [pid 5893] exit(0 [pid 5891] <... exit resumed>) = ? [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5904 attached [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5904] set_robust_list(0x555566297660, 24 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5904 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5904] <... set_robust_list resumed>) = 0 [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5895] exit(0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5895] <... exit resumed>) = ? [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5904] <... prctl resumed>) = 0 [pid 5896] ptrace(PTRACE_ATTACH, 5902 [pid 5895] +++ exited with 0 +++ [pid 5893] <... exit resumed>) = ? [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5905 attached [pid 5904] setpgid(0, 0 [pid 5898] ptrace(PTRACE_ATTACH, 5903 [pid 5897] ptrace(PTRACE_ATTACH, 5901 [pid 5891] +++ exited with 0 +++ [pid 5905] set_robust_list(0x555566297660, 24 [pid 5904] <... setpgid resumed>) = 0 [pid 5897] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5905 [pid 5905] <... set_robust_list resumed>) = 0 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5898] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5897] exit_group(0 [pid 5893] +++ exited with 0 +++ [pid 5896] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] exit_group(0 [pid 5896] exit_group(0) = ? [pid 5897] <... exit_group resumed>) = ? [pid 5898] <... exit_group resumed>) = ? [pid 5905] <... prctl resumed>) = 0 [pid 5904] <... openat resumed>) = 3 [pid 5905] setpgid(0, 0 [pid 5904] write(3, "1000", 4 [pid 5905] <... setpgid resumed>) = 0 [pid 5904] <... write resumed>) = 4 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5904] close(3 [pid 5905] <... openat resumed>) = 3 [pid 5904] <... close resumed>) = 0 [pid 5898] +++ exited with 0 +++ [pid 5897] +++ exited with 0 +++ [pid 5896] +++ exited with 0 +++ [pid 5905] write(3, "1000", 4 [pid 5904] memfd_create("syzkaller", 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5905] <... write resumed>) = 4 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5905] close(3 [pid 5904] <... memfd_create resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5905] <... close resumed>) = 0 [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5905] memfd_create("syzkaller", 0 [pid 5904] <... mmap resumed>) = 0x7f9e50600000 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5905] <... memfd_create resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5906 attached [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5905] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 5907 attached [pid 5906] set_robust_list(0x555566297660, 24 [pid 5904] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5906 [pid 5907] set_robust_list(0x555566297660, 24 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5907] <... set_robust_list resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5907 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5905] <... write resumed>) = 1048576 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5908 [pid 5904] <... write resumed>) = 1048576 [pid 5907] <... prctl resumed>) = 0 [pid 5906] <... prctl resumed>) = 0 [pid 5904] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5908 attached [pid 5907] setpgid(0, 0 [pid 5906] setpgid(0, 0 [pid 5905] munmap(0x7f9e50600000, 138412032 [pid 5908] set_robust_list(0x555566297660, 24 [pid 5907] <... setpgid resumed>) = 0 [pid 5906] <... setpgid resumed>) = 0 [pid 5904] <... munmap resumed>) = 0 [pid 5908] <... set_robust_list resumed>) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5907] <... openat resumed>) = 3 [pid 5908] <... prctl resumed>) = 0 [pid 5907] write(3, "1000", 4 [pid 5906] <... openat resumed>) = 3 [pid 5905] <... munmap resumed>) = 0 [pid 5904] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5908] setpgid(0, 0 [pid 5907] <... write resumed>) = 4 [pid 5906] write(3, "1000", 4 [pid 5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5908] <... setpgid resumed>) = 0 [pid 5907] close(3 [pid 5906] <... write resumed>) = 4 [pid 5905] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5904] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5907] <... close resumed>) = 0 [pid 5906] close(3 [pid 5905] close(3 [pid 5904] close(3 [pid 5908] <... openat resumed>) = 3 [pid 5908] write(3, "1000", 4) = 4 [pid 5907] memfd_create("syzkaller", 0 [pid 5906] <... close resumed>) = 0 [pid 5905] <... close resumed>) = 0 [pid 5904] <... close resumed>) = 0 [pid 5908] close(3 [pid 5907] <... memfd_create resumed>) = 3 [pid 5906] memfd_create("syzkaller", 0 [pid 5905] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5904] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5908] <... close resumed>) = 0 [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5905] <... openat resumed>) = 3 [pid 5908] memfd_create("syzkaller", 0 [pid 5905] clone(child_stack=NULL, flags=0 [pid 5908] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5909 attached [pid 5907] <... mmap resumed>) = 0x7f9e50600000 [pid 5906] <... memfd_create resumed>) = 3 [pid 5904] <... openat resumed>) = 3 [pid 5905] <... clone resumed>) = 5909 [pid 5904] clone(child_stack=NULL, flags=0 [pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5908] <... mmap resumed>) = 0x7f9e50600000 [pid 5906] <... mmap resumed>) = 0x7f9e50600000 [pid 5905] ptrace(PTRACE_ATTACH, 5909) = -1 EPERM (Operation not permitted) [pid 5905] exit_group(0) = ? ./strace-static-x86_64: Process 5910 attached [pid 5904] <... clone resumed>) = 5910 [pid 5905] +++ exited with 0 +++ [pid 5904] ptrace(PTRACE_ATTACH, 5910) = -1 EPERM (Operation not permitted) [pid 5904] exit_group(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5904] <... exit_group resumed>) = ? [pid 5904] +++ exited with 0 +++ [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5899] exit(0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5899] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} --- [pid 5899] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5911 attached [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5911 [pid 5911] set_robust_list(0x555566297660, 24) = 0 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5911] setpgid(0, 0 [pid 5908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5911] <... setpgid resumed>) = 0 [pid 5907] <... write resumed>) = 1048576 [pid 5900] exit(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5900] <... exit resumed>) = ? ./strace-static-x86_64: Process 5912 attached [pid 5911] <... openat resumed>) = 3 [pid 5907] munmap(0x7f9e50600000, 138412032 [pid 5900] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5912 [pid 5912] set_robust_list(0x555566297660, 24 [pid 5911] write(3, "1000", 4) = 4 [pid 5911] close(3) = 0 [pid 5911] memfd_create("syzkaller", 0) = 3 [pid 5911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5912] <... set_robust_list resumed>) = 0 [pid 5907] <... munmap resumed>) = 0 [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5908] <... write resumed>) = 1048576 [pid 5907] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5903] exit(0 [pid 5901] exit(0 [pid 5903] <... exit resumed>) = ? [pid 5901] <... exit resumed>) = ? [pid 5912] <... prctl resumed>) = 0 [pid 5908] munmap(0x7f9e50600000, 138412032 [pid 5907] close(3 [pid 5903] +++ exited with 0 +++ [pid 5902] exit(0 [pid 5901] +++ exited with 0 +++ [pid 5912] setpgid(0, 0 [pid 5902] <... exit resumed>) = ? [pid 5912] <... setpgid resumed>) = 0 [pid 5908] <... munmap resumed>) = 0 [pid 5906] <... write resumed>) = 1048576 [pid 5902] +++ exited with 0 +++ [pid 5906] munmap(0x7f9e50600000, 138412032 [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5908] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5907] <... close resumed>) = 0 [pid 5907] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5906] <... munmap resumed>) = 0 [pid 5912] <... openat resumed>) = 3 [pid 5912] write(3, "1000", 4 [pid 5908] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5907] <... openat resumed>) = 3 [pid 5912] <... write resumed>) = 4 [pid 5908] close(3 [pid 5907] clone(child_stack=NULL, flags=0 [pid 5906] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5912] close(3) = 0 [pid 5912] memfd_create("syzkaller", 0 [pid 5906] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5912] <... memfd_create resumed>) = 3 [pid 5906] close(3 [pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5913 attached ) = 0x7f9e50600000 [pid 5907] <... clone resumed>) = 5913 [pid 5907] ptrace(PTRACE_ATTACH, 5913) = -1 EPERM (Operation not permitted) [pid 5907] exit_group(0) = ? [pid 5911] <... write resumed>) = 1048576 [pid 5907] +++ exited with 0 +++ [pid 5906] <... close resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5908] <... close resumed>) = 0 [pid 5906] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5911] munmap(0x7f9e50600000, 138412032 [pid 5908] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5911] <... munmap resumed>) = 0 [pid 5908] <... openat resumed>) = 3 [pid 5906] <... openat resumed>) = 3 [pid 5908] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5914 attached [pid 5906] clone(child_stack=NULL, flags=0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5911] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5911] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5908] <... clone resumed>) = 5914 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5911] close(3./strace-static-x86_64: Process 5916 attached [pid 5912] <... write resumed>) = 1048576 [pid 5906] <... clone resumed>) = 5916 ./strace-static-x86_64: Process 5915 attached [pid 5908] ptrace(PTRACE_ATTACH, 5914 [pid 5915] set_robust_list(0x555566297660, 24 [pid 5908] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5915] <... set_robust_list resumed>) = 0 [pid 5908] exit_group(0 [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5912] munmap(0x7f9e50600000, 138412032 [pid 5908] <... exit_group resumed>) = ? [pid 5906] ptrace(PTRACE_ATTACH, 5916 [pid 5915] <... prctl resumed>) = 0 [pid 5912] <... munmap resumed>) = 0 [pid 5908] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5915 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5915] setpgid(0, 0) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5906] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5915] <... openat resumed>) = 3 [pid 5906] exit_group(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5912] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5915] write(3, "1000", 4 [pid 5912] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5911] <... close resumed>) = 0 [pid 5906] <... exit_group resumed>) = ? [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5912] close(3 [pid 5915] <... write resumed>) = 4 [pid 5911] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5906] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5915] close(3) = 0 [pid 5915] memfd_create("syzkaller", 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5917 attached [pid 5915] <... memfd_create resumed>) = 3 [pid 5911] <... openat resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5917] set_robust_list(0x555566297660, 24 [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5917 [pid 5917] <... set_robust_list resumed>) = 0 [pid 5915] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5911] clone(child_stack=NULL, flags=0 [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5919 attached ./strace-static-x86_64: Process 5918 attached ) = 0 [pid 5912] <... close resumed>) = 0 [pid 5911] <... clone resumed>) = 5919 [pid 5909] exit(0 [pid 5911] ptrace(PTRACE_ATTACH, 5919 [pid 5909] <... exit resumed>) = ? [pid 5918] set_robust_list(0x555566297660, 24 [pid 5911] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5917] setpgid(0, 0 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5917] <... setpgid resumed>) = 0 [pid 5912] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5911] exit_group(0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5909] +++ exited with 0 +++ [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5918 [pid 5911] <... exit_group resumed>) = ? [pid 5910] exit(0) = ? [pid 5918] <... prctl resumed>) = 0 [pid 5912] <... openat resumed>) = 3 [pid 5911] +++ exited with 0 +++ [pid 5910] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5917] <... openat resumed>) = 3 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5918] setpgid(0, 0 [pid 5917] write(3, "1000", 4 [pid 5912] clone(child_stack=NULL, flags=0 [pid 5087] <... restart_syscall resumed>) = 0 [pid 5918] <... setpgid resumed>) = 0 [pid 5917] <... write resumed>) = 4 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5917] close(3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5917] <... close resumed>) = 0 [pid 5918] <... openat resumed>) = 3 [pid 5917] memfd_create("syzkaller", 0 [pid 5918] write(3, "1000", 4 [pid 5917] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5920 attached [pid 5918] <... write resumed>) = 4 [pid 5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5918] close(3 [pid 5912] <... clone resumed>) = 5920 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5918] <... close resumed>) = 0 [pid 5918] memfd_create("syzkaller", 0 [pid 5917] <... mmap resumed>) = 0x7f9e50600000 [pid 5912] ptrace(PTRACE_ATTACH, 5920) = -1 EPERM (Operation not permitted) [pid 5912] exit_group(0) = ? [pid 5912] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5921 attached [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5921 [pid 5921] set_robust_list(0x555566297660, 24 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5921] <... set_robust_list resumed>) = 0 [pid 5918] <... memfd_create resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5918] <... mmap resumed>) = 0x7f9e50600000 [pid 5917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 5922 attached [pid 5915] <... write resumed>) = 1048576 [pid 5921] <... prctl resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5922 [pid 5922] set_robust_list(0x555566297660, 24 [pid 5921] setpgid(0, 0 [pid 5918] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5915] munmap(0x7f9e50600000, 138412032 [pid 5922] <... set_robust_list resumed>) = 0 [pid 5921] <... setpgid resumed>) = 0 [pid 5917] <... write resumed>) = 1048576 [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5922] <... prctl resumed>) = 0 [pid 5921] <... openat resumed>) = 3 [pid 5922] setpgid(0, 0 [pid 5921] write(3, "1000", 4 [pid 5922] <... setpgid resumed>) = 0 [pid 5921] <... write resumed>) = 4 [pid 5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5921] close(3 [pid 5917] munmap(0x7f9e50600000, 138412032 [pid 5922] <... openat resumed>) = 3 [pid 5921] <... close resumed>) = 0 [pid 5917] <... munmap resumed>) = 0 [pid 5915] <... munmap resumed>) = 0 [pid 5922] write(3, "1000", 4 [pid 5921] memfd_create("syzkaller", 0 [pid 5922] <... write resumed>) = 4 [pid 5915] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5922] close(3 [pid 5921] <... memfd_create resumed>) = 3 [pid 5922] <... close resumed>) = 0 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5915] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5922] memfd_create("syzkaller", 0 [pid 5921] <... mmap resumed>) = 0x7f9e50600000 [pid 5917] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5915] close(3 [pid 5918] <... write resumed>) = 1048576 [pid 5917] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5917] close(3 [pid 5922] <... memfd_create resumed>) = 3 [pid 5921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5918] munmap(0x7f9e50600000, 138412032 [pid 5915] <... close resumed>) = 0 [pid 5918] <... munmap resumed>) = 0 [pid 5915] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5918] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5915] <... openat resumed>) = 3 [pid 5918] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5918] close(3 [pid 5915] clone(child_stack=NULL, flags=0 [pid 5922] <... mmap resumed>) = 0x7f9e50600000 [pid 5918] <... close resumed>) = 0 [pid 5917] <... close resumed>) = 0 ./strace-static-x86_64: Process 5923 attached [pid 5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5921] <... write resumed>) = 1048576 [pid 5918] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5917] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5915] <... clone resumed>) = 5923 [pid 5913] exit(0 [pid 5921] munmap(0x7f9e50600000, 138412032 [pid 5915] ptrace(PTRACE_ATTACH, 5923 [pid 5913] <... exit resumed>) = ? [pid 5921] <... munmap resumed>) = 0 [pid 5918] <... openat resumed>) = 3 [pid 5915] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5913] +++ exited with 0 +++ [pid 5917] <... openat resumed>) = 3 [pid 5917] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5924 attached [pid 5922] <... write resumed>) = 1048576 [pid 5921] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5918] clone(child_stack=NULL, flags=0 [pid 5915] exit_group(0 [pid 5922] munmap(0x7f9e50600000, 138412032 [pid 5921] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5917] <... clone resumed>) = 5924 [pid 5915] <... exit_group resumed>) = ? [pid 5914] exit(0./strace-static-x86_64: Process 5925 attached [pid 5921] close(3 [pid 5916] exit(0 [pid 5922] <... munmap resumed>) = 0 [pid 5921] <... close resumed>) = 0 [pid 5918] <... clone resumed>) = 5925 [pid 5917] ptrace(PTRACE_ATTACH, 5924 [pid 5916] <... exit resumed>) = ? [pid 5915] +++ exited with 0 +++ [pid 5914] <... exit resumed>) = ? [pid 5921] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5918] ptrace(PTRACE_ATTACH, 5925 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5921] <... openat resumed>) = 3 [pid 5918] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5914] +++ exited with 0 +++ [pid 5921] clone(child_stack=NULL, flags=0 [pid 5922] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5918] exit_group(0 [pid 5917] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5916] +++ exited with 0 +++ [pid 5917] exit_group(0./strace-static-x86_64: Process 5926 attached [pid 5918] <... exit_group resumed>) = ? [pid 5917] <... exit_group resumed>) = ? [pid 5917] +++ exited with 0 +++ [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5921] <... clone resumed>) = 5926 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5922] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5921] ptrace(PTRACE_ATTACH, 5926 [pid 5918] +++ exited with 0 +++ [pid 5090] <... restart_syscall resumed>) = 0 [pid 5921] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5922] close(3 [pid 5921] exit_group(0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5921] <... exit_group resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5088] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5927 attached [pid 5921] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... restart_syscall resumed>) = 0 [pid 5927] set_robust_list(0x555566297660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5927 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5927] <... set_robust_list resumed>) = 0 [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5928 attached [pid 5919] exit(0) = ? [pid 5928] set_robust_list(0x555566297660, 24 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5927] <... prctl resumed>) = 0 [pid 5927] setpgid(0, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5927] <... setpgid resumed>) = 0 [pid 5919] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5929 attached [pid 5928] <... set_robust_list resumed>) = 0 [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5922] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5928 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5929] set_robust_list(0x555566297660, 24 [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5922] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5929 [pid 5929] <... set_robust_list resumed>) = 0 [pid 5928] <... prctl resumed>) = 0 [pid 5928] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5930 attached [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5927] <... openat resumed>) = 3 [pid 5922] <... openat resumed>) = 3 [pid 5930] set_robust_list(0x555566297660, 24 [pid 5929] <... prctl resumed>) = 0 [pid 5928] <... openat resumed>) = 3 [pid 5927] write(3, "1000", 4 [pid 5922] clone(child_stack=NULL, flags=0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5930 [pid 5930] <... set_robust_list resumed>) = 0 [pid 5929] setpgid(0, 0 [pid 5927] <... write resumed>) = 4 [pid 5930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5927] close(3 [pid 5929] <... setpgid resumed>) = 0 [pid 5928] write(3, "1000", 4 [pid 5930] <... prctl resumed>) = 0 [pid 5928] <... write resumed>) = 4 [pid 5927] <... close resumed>) = 0 ./strace-static-x86_64: Process 5931 attached [pid 5930] setpgid(0, 0 [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5928] close(3 [pid 5927] memfd_create("syzkaller", 0 [pid 5930] <... setpgid resumed>) = 0 [pid 5928] <... close resumed>) = 0 [pid 5927] <... memfd_create resumed>) = 3 [pid 5922] <... clone resumed>) = 5931 [pid 5929] <... openat resumed>) = 3 [pid 5930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5929] write(3, "1000", 4 [pid 5928] memfd_create("syzkaller", 0 [pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5922] ptrace(PTRACE_ATTACH, 5931 [pid 5930] <... openat resumed>) = 3 [pid 5929] <... write resumed>) = 4 [pid 5928] <... memfd_create resumed>) = 3 [pid 5927] <... mmap resumed>) = 0x7f9e50600000 [pid 5922] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5930] write(3, "1000", 4 [pid 5929] close(3 [pid 5928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5922] exit_group(0 [pid 5920] exit(0 [pid 5930] <... write resumed>) = 4 [pid 5929] <... close resumed>) = 0 [pid 5928] <... mmap resumed>) = 0x7f9e50600000 [pid 5922] <... exit_group resumed>) = ? [pid 5920] <... exit resumed>) = ? [pid 5930] close(3 [pid 5929] memfd_create("syzkaller", 0 [pid 5920] +++ exited with 0 +++ [pid 5930] <... close resumed>) = 0 [pid 5930] memfd_create("syzkaller", 0 [pid 5929] <... memfd_create resumed>) = 3 [pid 5928] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5930] <... memfd_create resumed>) = 3 [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5922] +++ exited with 0 +++ [pid 5929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5927] <... write resumed>) = 1048576 [pid 5930] <... mmap resumed>) = 0x7f9e50600000 [pid 5928] <... write resumed>) = 1048576 [pid 5929] <... write resumed>) = 1048576 [pid 5930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5928] munmap(0x7f9e50600000, 138412032 [pid 5927] munmap(0x7f9e50600000, 138412032 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5929] munmap(0x7f9e50600000, 138412032 [pid 5928] <... munmap resumed>) = 0 [pid 5927] <... munmap resumed>) = 0 [pid 5929] <... munmap resumed>) = 0 [pid 5928] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5930] <... write resumed>) = 1048576 [pid 5929] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5927] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5930] munmap(0x7f9e50600000, 138412032 [pid 5929] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5928] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5929] close(3 [pid 5928] close(3 [pid 5927] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5927] close(3 [pid 5930] <... munmap resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5930] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5932 [pid 5929] <... close resumed>) = 0 ./strace-static-x86_64: Process 5932 attached [pid 5930] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5932] set_robust_list(0x555566297660, 24 [pid 5930] close(3 [pid 5927] <... close resumed>) = 0 [pid 5932] <... set_robust_list resumed>) = 0 [pid 5930] <... close resumed>) = 0 [pid 5929] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5928] <... close resumed>) = 0 [pid 5927] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5930] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5932] <... prctl resumed>) = 0 [pid 5930] <... openat resumed>) = 3 [pid 5932] setpgid(0, 0 [pid 5928] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5923] exit(0 [pid 5932] <... setpgid resumed>) = 0 [pid 5930] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5933 attached [pid 5932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5929] <... openat resumed>) = 3 [pid 5928] <... openat resumed>) = 3 [pid 5927] <... openat resumed>) = 3 [pid 5923] <... exit resumed>) = ? [pid 5929] clone(child_stack=NULL, flags=0 [pid 5927] clone(child_stack=NULL, flags=0 [pid 5932] <... openat resumed>) = 3 [pid 5932] write(3, "1000", 4) = 4 [pid 5930] <... clone resumed>) = 5933 [pid 5932] close(3 [pid 5930] ptrace(PTRACE_ATTACH, 5933 [pid 5932] <... close resumed>) = 0 [pid 5932] memfd_create("syzkaller", 0 [pid 5930] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5932] <... memfd_create resumed>) = 3 [pid 5930] exit_group(0 [pid 5932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5930] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5934 attached [pid 5932] <... mmap resumed>) = 0x7f9e50600000 [pid 5930] +++ exited with 0 +++ [pid 5928] clone(child_stack=NULL, flags=0 [pid 5923] +++ exited with 0 +++ ./strace-static-x86_64: Process 5936 attached ./strace-static-x86_64: Process 5935 attached [pid 5924] exit(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5930, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5924] <... exit resumed>) = ? [pid 5927] <... clone resumed>) = 5935 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5929] <... clone resumed>) = 5934 [pid 5928] <... clone resumed>) = 5936 [pid 5927] ptrace(PTRACE_ATTACH, 5935 [pid 5924] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5929] ptrace(PTRACE_ATTACH, 5934 [pid 5928] ptrace(PTRACE_ATTACH, 5936 [pid 5927] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5932] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5929] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5928] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5927] exit_group(0./strace-static-x86_64: Process 5937 attached [pid 5929] exit_group(0 [pid 5928] exit_group(0 [pid 5927] <... exit_group resumed>) = ? [pid 5925] exit(0 [pid 5937] set_robust_list(0x555566297660, 24 [pid 5929] <... exit_group resumed>) = ? [pid 5928] <... exit_group resumed>) = ? [pid 5927] +++ exited with 0 +++ [pid 5925] <... exit resumed>) = ? [pid 5937] <... set_robust_list resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5937 [pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5925] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5927, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5937] <... prctl resumed>) = 0 [pid 5929] +++ exited with 0 +++ [pid 5926] exit(0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5937] setpgid(0, 0 [pid 5932] <... write resumed>) = 1048576 [pid 5926] <... exit resumed>) = ? [pid 5932] munmap(0x7f9e50600000, 138412032 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5926] +++ exited with 0 +++ [pid 5937] <... setpgid resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5932] <... munmap resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5928] +++ exited with 0 +++ [pid 5932] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5932] close(3./strace-static-x86_64: Process 5938 attached [pid 5937] <... openat resumed>) = 3 [pid 5932] <... close resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5938 [pid 5938] set_robust_list(0x555566297660, 24 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5928, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5938] <... set_robust_list resumed>) = 0 [pid 5937] write(3, "1000", 4 [pid 5932] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5932] <... openat resumed>) = 3 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5937] <... write resumed>) = 4 [pid 5932] clone(child_stack=NULL, flags=0 [pid 5938] <... prctl resumed>) = 0 [pid 5937] close(3 [pid 5931] exit(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5937] <... close resumed>) = 0 [pid 5931] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5938] setpgid(0, 0 [pid 5937] memfd_create("syzkaller", 0 [pid 5931] +++ exited with 0 +++ ./strace-static-x86_64: Process 5939 attached [pid 5938] <... setpgid resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5932] <... clone resumed>) = 5939 [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5937] <... memfd_create resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5938] <... openat resumed>) = 3 [pid 5937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5932] ptrace(PTRACE_ATTACH, 5939 [pid 5937] <... mmap resumed>) = 0x7f9e50600000 [pid 5932] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 5940 attached [pid 5938] write(3, "1000", 4 [pid 5932] exit_group(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5940 ./strace-static-x86_64: Process 5941 attached [pid 5940] set_robust_list(0x555566297660, 24 [pid 5938] <... write resumed>) = 4 [pid 5940] <... set_robust_list resumed>) = 0 [pid 5938] close(3 [pid 5932] <... exit_group resumed>) = ? [pid 5941] set_robust_list(0x555566297660, 24 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5938] <... close resumed>) = 0 [pid 5932] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5941 [pid 5941] <... set_robust_list resumed>) = 0 [pid 5940] <... prctl resumed>) = 0 [pid 5938] memfd_create("syzkaller", 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5940] setpgid(0, 0 [pid 5941] <... prctl resumed>) = 0 [pid 5938] <... memfd_create resumed>) = 3 [pid 5941] setpgid(0, 0) = 0 [pid 5938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5940] <... setpgid resumed>) = 0 [pid 5941] <... openat resumed>) = 3 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5942 attached [pid 5941] write(3, "1000", 4 [pid 5940] <... openat resumed>) = 3 [pid 5937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5942 [pid 5942] set_robust_list(0x555566297660, 24 [pid 5941] <... write resumed>) = 4 [pid 5940] write(3, "1000", 4 [pid 5938] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5937] <... write resumed>) = 1048576 [pid 5942] <... set_robust_list resumed>) = 0 [pid 5941] close(3 [pid 5940] <... write resumed>) = 4 [pid 5937] munmap(0x7f9e50600000, 138412032 [pid 5941] <... close resumed>) = 0 [pid 5940] close(3 [pid 5937] <... munmap resumed>) = 0 [pid 5941] memfd_create("syzkaller", 0 [pid 5940] <... close resumed>) = 0 [pid 5942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5941] <... memfd_create resumed>) = 3 [pid 5941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5940] memfd_create("syzkaller", 0 [pid 5937] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5942] setpgid(0, 0 [pid 5941] <... mmap resumed>) = 0x7f9e50600000 [pid 5942] <... setpgid resumed>) = 0 [pid 5940] <... memfd_create resumed>) = 3 [pid 5937] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5940] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5937] close(3 [pid 5942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5940] <... mmap resumed>) = 0x7f9e50600000 [pid 5938] <... write resumed>) = 1048576 [pid 5942] write(3, "1000", 4) = 4 [pid 5942] close(3) = 0 [pid 5941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5938] munmap(0x7f9e50600000, 138412032 [pid 5942] memfd_create("syzkaller", 0 [pid 5938] <... munmap resumed>) = 0 [pid 5942] <... memfd_create resumed>) = 3 [pid 5940] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5938] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5937] <... close resumed>) = 0 [pid 5942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5938] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5938] close(3 [pid 5937] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5938] <... close resumed>) = 0 [pid 5934] exit(0) = ? [pid 5937] <... openat resumed>) = 3 [pid 5934] +++ exited with 0 +++ [pid 5933] exit(0 [pid 5935] exit(0) = ? [pid 5940] <... write resumed>) = 1048576 [pid 5941] <... write resumed>) = 1048576 [pid 5937] clone(child_stack=NULL, flags=0 [pid 5935] +++ exited with 0 +++ [pid 5933] <... exit resumed>) = ? [pid 5936] exit(0) = ? [pid 5940] munmap(0x7f9e50600000, 138412032 [pid 5936] +++ exited with 0 +++ [pid 5933] +++ exited with 0 +++ [pid 5940] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5943 attached [pid 5937] <... clone resumed>) = 5943 [pid 5941] munmap(0x7f9e50600000, 138412032 [pid 5938] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5940] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5942] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5940] close(3 [pid 5941] <... munmap resumed>) = 0 [pid 5938] <... openat resumed>) = 3 [pid 5937] ptrace(PTRACE_ATTACH, 5943) = -1 EPERM (Operation not permitted) [pid 5937] exit_group(0 [pid 5938] clone(child_stack=NULL, flags=0 [pid 5941] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5937] <... exit_group resumed>) = ? [pid 5940] <... close resumed>) = 0 [pid 5940] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5944 attached [pid 5942] <... write resumed>) = 1048576 [pid 5941] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5937] +++ exited with 0 +++ [pid 5942] munmap(0x7f9e50600000, 138412032 [pid 5941] close(3 [pid 5940] <... openat resumed>) = 3 [pid 5938] <... clone resumed>) = 5944 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5937, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5938] ptrace(PTRACE_ATTACH, 5944 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5938] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5945 attached [pid 5942] <... munmap resumed>) = 0 [pid 5940] clone(child_stack=NULL, flags=0 [pid 5938] exit_group(0 [pid 5945] set_robust_list(0x555566297660, 24 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5945 [pid 5945] <... set_robust_list resumed>) = 0 [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5938] <... exit_group resumed>) = ? [pid 5945] <... prctl resumed>) = 0 [pid 5945] setpgid(0, 0) = 0 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5942] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5946 attached [pid 5945] <... openat resumed>) = 3 [pid 5945] write(3, "1000", 4) = 4 [pid 5942] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5945] close(3) = 0 [pid 5945] memfd_create("syzkaller", 0) = 3 [pid 5942] close(3 [pid 5945] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5945] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5942] <... close resumed>) = 0 [pid 5938] +++ exited with 0 +++ [pid 5940] <... clone resumed>) = 5946 [pid 5941] <... close resumed>) = 0 [pid 5940] ptrace(PTRACE_ATTACH, 5946 [pid 5942] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5941] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5940] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5941] <... openat resumed>) = 3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5938, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5941] clone(child_stack=NULL, flags=0 [pid 5940] exit_group(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5940] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5947 attached [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5948 attached [pid 5940] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5940, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5948] set_robust_list(0x555566297660, 24 [pid 5942] <... openat resumed>) = 3 [pid 5941] <... clone resumed>) = 5947 [pid 5948] <... set_robust_list resumed>) = 0 [pid 5942] clone(child_stack=NULL, flags=0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5948 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5948] <... prctl resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5948] setpgid(0, 0 [pid 5941] ptrace(PTRACE_ATTACH, 5947 [pid 5948] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5950 attached ./strace-static-x86_64: Process 5949 attached [pid 5948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5942] <... clone resumed>) = 5950 [pid 5941] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5949] set_robust_list(0x555566297660, 24 [pid 5942] ptrace(PTRACE_ATTACH, 5950 [pid 5941] exit_group(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5949 [pid 5948] <... openat resumed>) = 3 [pid 5949] <... set_robust_list resumed>) = 0 [pid 5948] write(3, "1000", 4 [pid 5942] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5941] <... exit_group resumed>) = ? [pid 5949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5948] <... write resumed>) = 4 [pid 5942] exit_group(0 [pid 5949] <... prctl resumed>) = 0 [pid 5948] close(3 [pid 5949] setpgid(0, 0 [pid 5948] <... close resumed>) = 0 [pid 5949] <... setpgid resumed>) = 0 [pid 5948] memfd_create("syzkaller", 0 [pid 5942] <... exit_group resumed>) = ? [pid 5941] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5941, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5948] <... memfd_create resumed>) = 3 [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5949] <... openat resumed>) = 3 [pid 5948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5949] write(3, "1000", 4 [pid 5945] <... write resumed>) = 1048576 [pid 5942] +++ exited with 0 +++ [pid 5939] exit(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5949] <... write resumed>) = 4 [pid 5939] <... exit resumed>) = ? [pid 5945] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 5951 attached [pid 5949] close(3 [pid 5948] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5945] <... munmap resumed>) = 0 [pid 5939] +++ exited with 0 +++ [pid 5951] set_robust_list(0x555566297660, 24 [pid 5949] <... close resumed>) = 0 [pid 5949] memfd_create("syzkaller", 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5942, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5951] <... set_robust_list resumed>) = 0 [pid 5949] <... memfd_create resumed>) = 3 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5945] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5951] <... prctl resumed>) = 0 [pid 5949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5945] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5951 [pid 5951] setpgid(0, 0 [pid 5949] <... mmap resumed>) = 0x7f9e50600000 [pid 5945] close(3./strace-static-x86_64: Process 5952 attached [pid 5951] <... setpgid resumed>) = 0 [pid 5949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5948] <... write resumed>) = 1048576 [pid 5952] set_robust_list(0x555566297660, 24) = 0 [pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5948] munmap(0x7f9e50600000, 138412032 [pid 5945] <... close resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5952 [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5951] <... openat resumed>) = 3 [pid 5951] write(3, "1000", 4 [pid 5952] <... prctl resumed>) = 0 [pid 5951] <... write resumed>) = 4 [pid 5951] close(3) = 0 [pid 5952] setpgid(0, 0 [pid 5951] memfd_create("syzkaller", 0 [pid 5948] <... munmap resumed>) = 0 [pid 5945] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5952] <... setpgid resumed>) = 0 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5951] <... memfd_create resumed>) = 3 [pid 5952] <... openat resumed>) = 3 [pid 5951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5952] write(3, "1000", 4 [pid 5948] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5945] <... openat resumed>) = 3 [pid 5952] <... write resumed>) = 4 [pid 5951] <... mmap resumed>) = 0x7f9e50600000 [pid 5952] close(3 [pid 5948] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5952] <... close resumed>) = 0 [pid 5945] clone(child_stack=NULL, flags=0 [pid 5952] memfd_create("syzkaller", 0 [pid 5948] close(3./strace-static-x86_64: Process 5953 attached [pid 5952] <... memfd_create resumed>) = 3 [pid 5951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5949] <... write resumed>) = 1048576 [pid 5948] <... close resumed>) = 0 [pid 5952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5949] munmap(0x7f9e50600000, 138412032 [pid 5948] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5945] <... clone resumed>) = 5953 [pid 5952] <... mmap resumed>) = 0x7f9e50600000 [pid 5949] <... munmap resumed>) = 0 [pid 5948] <... openat resumed>) = 3 [pid 5945] ptrace(PTRACE_ATTACH, 5953 [pid 5951] <... write resumed>) = 1048576 [pid 5951] munmap(0x7f9e50600000, 138412032 [pid 5949] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5948] clone(child_stack=NULL, flags=0 [pid 5945] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5952] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5949] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5945] exit_group(0./strace-static-x86_64: Process 5954 attached [pid 5951] <... munmap resumed>) = 0 [pid 5949] close(3 [pid 5945] <... exit_group resumed>) = ? [pid 5951] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5951] close(3 [pid 5945] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5945, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566297650) = 5955 ./strace-static-x86_64: Process 5955 attached [pid 5952] <... write resumed>) = 1048576 [pid 5951] <... close resumed>) = 0 [pid 5949] <... close resumed>) = 0 [pid 5948] <... clone resumed>) = 5954 [pid 5955] set_robust_list(0x555566297660, 24 [pid 5952] munmap(0x7f9e50600000, 138412032 [pid 5951] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5949] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5948] ptrace(PTRACE_ATTACH, 5954 [pid 5943] exit(0 [pid 5955] <... set_robust_list resumed>) = 0 [pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5952] <... munmap resumed>) = 0 [pid 5948] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5943] <... exit resumed>) = ? [pid 5952] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5949] <... openat resumed>) = 3 [pid 5948] exit_group(0 [pid 5955] <... prctl resumed>) = 0 [pid 5955] setpgid(0, 0 [pid 5951] <... openat resumed>) = 3 [pid 5949] clone(child_stack=NULL, flags=0 [pid 5955] <... setpgid resumed>) = 0 [pid 5952] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5951] clone(child_stack=NULL, flags=0 [pid 5948] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5956 attached [pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5948] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5948, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5957 attached [pid 5955] <... openat resumed>) = 3 [pid 5952] close(3 [pid 5949] <... clone resumed>) = 5956 [pid 5943] +++ exited with 0 +++ [pid 5949] ptrace(PTRACE_ATTACH, 5956 [pid 5951] <... clone resumed>) = 5957 [pid 5949] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5951] ptrace(PTRACE_ATTACH, 5957 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5955] write(3, "1000", 4) = 4 [pid 5955] close(3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5951] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5949] exit_group(0 [pid 5955] <... close resumed>) = 0 [pid 5951] exit_group(0 [pid 5944] exit(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5955] memfd_create("syzkaller", 0 [pid 5951] <... exit_group resumed>) = ? [pid 5949] <... exit_group resumed>) = ? [pid 5944] <... exit resumed>) = ? ./strace-static-x86_64: Process 5958 attached [pid 5955] <... memfd_create resumed>) = 3 [pid 5952] <... close resumed>) = 0 [pid 5951] +++ exited with 0 +++ [pid 5949] +++ exited with 0 +++ [pid 5944] +++ exited with 0 +++ [pid 5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5951, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5958] set_robust_list(0x555566297660, 24) = 0 [pid 5958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5955] <... mmap resumed>) = 0x7f9e50600000 [pid 5952] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5958 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5949, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5958] setpgid(0, 0 [pid 5952] <... openat resumed>) = 3 [pid 5946] exit(0 [pid 5958] <... setpgid resumed>) = 0 [pid 5958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5946] <... exit resumed>) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5952] clone(child_stack=NULL, flags=0 [pid 5946] +++ exited with 0 +++ [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5958] <... openat resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5947] exit(0) = ? [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5959 attached [pid 5958] write(3, "1000", 4 [pid 5947] +++ exited with 0 +++ [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5958] <... write resumed>) = 4 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] close(3) = 0 [pid 5952] <... clone resumed>) = 5959 ./strace-static-x86_64: Process 5960 attached [pid 5958] memfd_create("syzkaller", 0 [pid 5952] ptrace(PTRACE_ATTACH, 5959./strace-static-x86_64: Process 5961 attached [pid 5958] <... memfd_create resumed>) = 3 [pid 5952] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5960 [pid 5960] set_robust_list(0x555566297660, 24 [pid 5961] set_robust_list(0x555566297660, 24 [pid 5960] <... set_robust_list resumed>) = 0 [pid 5958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5952] exit_group(0 [pid 5950] exit(0) = ? [pid 5961] <... set_robust_list resumed>) = 0 [pid 5958] <... mmap resumed>) = 0x7f9e50600000 [pid 5952] <... exit_group resumed>) = ? [pid 5950] +++ exited with 0 +++ [pid 5961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5961 [pid 5961] <... prctl resumed>) = 0 [pid 5960] <... prctl resumed>) = 0 [pid 5958] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5952] +++ exited with 0 +++ [pid 5961] setpgid(0, 0) = 0 [pid 5961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5960] setpgid(0, 0) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5961] <... openat resumed>) = 3 [pid 5961] write(3, "1000", 4 [pid 5960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5961] <... write resumed>) = 4 [pid 5960] <... openat resumed>) = 3 [pid 5961] close(3) = 0 [pid 5960] write(3, "1000", 4 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5961] memfd_create("syzkaller", 0) = 3 [pid 5960] <... write resumed>) = 4 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5960] close(3 [pid 5961] <... mmap resumed>) = 0x7f9e50600000 [pid 5960] <... close resumed>) = 0 [pid 5960] memfd_create("syzkaller", 0) = 3 [pid 5960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5962 ./strace-static-x86_64: Process 5962 attached [pid 5962] set_robust_list(0x555566297660, 24 [pid 5961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5955] <... write resumed>) = 1048576 [pid 5962] <... set_robust_list resumed>) = 0 [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5962] setpgid(0, 0) = 0 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5962] write(3, "1000", 4) = 4 [pid 5962] close(3) = 0 [pid 5962] memfd_create("syzkaller", 0) = 3 [pid 5955] munmap(0x7f9e50600000, 138412032 [pid 5962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5960] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5958] <... write resumed>) = 1048576 [pid 5955] <... munmap resumed>) = 0 [pid 5962] <... mmap resumed>) = 0x7f9e50600000 [pid 5958] munmap(0x7f9e50600000, 138412032 [pid 5962] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5961] <... write resumed>) = 1048576 [pid 5958] <... munmap resumed>) = 0 [pid 5955] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5961] munmap(0x7f9e50600000, 138412032) = 0 [pid 5955] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5955] close(3 [pid 5961] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5958] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5958] close(3 [pid 5953] exit(0) = ? [pid 5953] +++ exited with 0 +++ [pid 5961] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5955] <... close resumed>) = 0 [pid 5961] close(3 [pid 5960] <... write resumed>) = 1048576 [pid 5958] <... close resumed>) = 0 [pid 5960] munmap(0x7f9e50600000, 138412032) = 0 [pid 5962] <... write resumed>) = 1048576 [pid 5961] <... close resumed>) = 0 [pid 5960] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5958] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5955] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5962] munmap(0x7f9e50600000, 138412032 [pid 5961] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5960] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5958] <... openat resumed>) = 3 [pid 5955] <... openat resumed>) = 3 [pid 5962] <... munmap resumed>) = 0 [pid 5961] <... openat resumed>) = 3 [pid 5960] close(3 [pid 5958] clone(child_stack=NULL, flags=0 [pid 5954] exit(0 [pid 5955] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5963 attached [pid 5962] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5961] clone(child_stack=NULL, flags=0 [pid 5954] <... exit resumed>) = ? ./strace-static-x86_64: Process 5964 attached [pid 5962] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5960] <... close resumed>) = 0 [pid 5954] +++ exited with 0 +++ [pid 5962] close(3 [pid 5958] <... clone resumed>) = 5963 [pid 5958] ptrace(PTRACE_ATTACH, 5963) = -1 EPERM (Operation not permitted) [pid 5960] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5958] exit_group(0 [pid 5955] <... clone resumed>) = 5964 [pid 5958] <... exit_group resumed>) = ? [pid 5955] ptrace(PTRACE_ATTACH, 5964 [pid 5960] <... openat resumed>) = 3 [pid 5960] clone(child_stack=NULL, flags=0 [pid 5955] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5955] exit_group(0 [pid 5958] +++ exited with 0 +++ [pid 5955] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5958, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- ./strace-static-x86_64: Process 5965 attached ./strace-static-x86_64: Process 5966 attached [pid 5961] <... clone resumed>) = 5966 [pid 5960] <... clone resumed>) = 5965 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5962] <... close resumed>) = 0 [pid 5961] ptrace(PTRACE_ATTACH, 5966 [pid 5960] ptrace(PTRACE_ATTACH, 5965 [pid 5956] exit(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5962] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5961] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5960] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5957] exit(0 [pid 5956] <... exit resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5962] <... openat resumed>) = 3 [pid 5961] exit_group(0 [pid 5960] exit_group(0 [pid 5957] <... exit resumed>) = ? [pid 5955] +++ exited with 0 +++ [pid 5962] clone(child_stack=NULL, flags=0 [pid 5961] <... exit_group resumed>) = ? [pid 5960] <... exit_group resumed>) = ? [pid 5956] +++ exited with 0 +++ ./strace-static-x86_64: Process 5967 attached [pid 5960] +++ exited with 0 +++ [pid 5957] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5967] set_robust_list(0x555566297660, 24 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5960, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5967 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5967] <... set_robust_list resumed>) = 0 [pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... restart_syscall resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5967] <... prctl resumed>) = 0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5967] setpgid(0, 0./strace-static-x86_64: Process 5968 attached ) = 0 [pid 5961] +++ exited with 0 +++ [pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5969 attached [pid 5962] <... clone resumed>) = 5968 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5961, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5969] set_robust_list(0x555566297660, 24 [pid 5967] <... openat resumed>) = 3 [pid 5962] ptrace(PTRACE_ATTACH, 5968 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5969 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5969] <... set_robust_list resumed>) = 0 [pid 5962] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5967] write(3, "1000", 4 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5971 attached ./strace-static-x86_64: Process 5970 attached [pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5967] <... write resumed>) = 4 [pid 5962] exit_group(0 [pid 5971] set_robust_list(0x555566297660, 24 [pid 5970] set_robust_list(0x555566297660, 24 [pid 5969] <... prctl resumed>) = 0 [pid 5967] close(3 [pid 5962] <... exit_group resumed>) = ? [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5971 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5970 [pid 5971] <... set_robust_list resumed>) = 0 [pid 5970] <... set_robust_list resumed>) = 0 [pid 5967] <... close resumed>) = 0 [pid 5971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5967] memfd_create("syzkaller", 0 [pid 5971] <... prctl resumed>) = 0 [pid 5970] <... prctl resumed>) = 0 [pid 5969] setpgid(0, 0 [pid 5962] +++ exited with 0 +++ [pid 5971] setpgid(0, 0 [pid 5970] setpgid(0, 0 [pid 5969] <... setpgid resumed>) = 0 [pid 5967] <... memfd_create resumed>) = 3 [pid 5971] <... setpgid resumed>) = 0 [pid 5970] <... setpgid resumed>) = 0 [pid 5967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5967] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5971] <... openat resumed>) = 3 [pid 5970] <... openat resumed>) = 3 [pid 5969] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5969] write(3, "1000", 4 [pid 5971] write(3, "1000", 4 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5972 attached [pid 5971] <... write resumed>) = 4 [pid 5970] write(3, "1000", 4 [pid 5969] <... write resumed>) = 4 [pid 5972] set_robust_list(0x555566297660, 24 [pid 5971] close(3 [pid 5970] <... write resumed>) = 4 [pid 5969] close(3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5972 [pid 5971] <... close resumed>) = 0 [pid 5970] close(3 [pid 5969] <... close resumed>) = 0 [pid 5972] <... set_robust_list resumed>) = 0 [pid 5971] memfd_create("syzkaller", 0 [pid 5970] <... close resumed>) = 0 [pid 5969] memfd_create("syzkaller", 0 [pid 5972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5971] <... memfd_create resumed>) = 3 [pid 5970] memfd_create("syzkaller", 0 [pid 5969] <... memfd_create resumed>) = 3 [pid 5972] <... prctl resumed>) = 0 [pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5970] <... memfd_create resumed>) = 3 [pid 5969] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5967] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5972] setpgid(0, 0 [pid 5971] <... mmap resumed>) = 0x7f9e50600000 [pid 5970] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5969] <... mmap resumed>) = 0x7f9e50600000 [pid 5970] <... mmap resumed>) = 0x7f9e50600000 [pid 5959] exit(0) = ? [pid 5959] +++ exited with 0 +++ [pid 5969] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5972] <... setpgid resumed>) = 0 [pid 5971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5969] <... write resumed>) = 1048576 [pid 5967] <... write resumed>) = 1048576 [pid 5972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5967] munmap(0x7f9e50600000, 138412032 [pid 5972] <... openat resumed>) = 3 [pid 5969] munmap(0x7f9e50600000, 138412032 [pid 5967] <... munmap resumed>) = 0 [pid 5972] write(3, "1000", 4) = 4 [pid 5972] close(3) = 0 [pid 5967] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5972] memfd_create("syzkaller", 0) = 3 [pid 5967] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5967] close(3 [pid 5972] <... mmap resumed>) = 0x7f9e50600000 [pid 5969] <... munmap resumed>) = 0 [pid 5969] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5969] close(3 [pid 5972] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5970] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5967] <... close resumed>) = 0 [pid 5969] <... close resumed>) = 0 [pid 5967] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5967] clone(child_stack=NULL, flags=0 [pid 5969] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5969] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5973 attached [pid 5971] <... write resumed>) = 1048576 [pid 5970] <... write resumed>) = 1048576 [pid 5972] <... write resumed>) = 1048576 [pid 5971] munmap(0x7f9e50600000, 138412032 [pid 5967] <... clone resumed>) = 5973 ./strace-static-x86_64: Process 5974 attached [pid 5967] ptrace(PTRACE_ATTACH, 5973 [pid 5969] <... clone resumed>) = 5974 [pid 5967] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5969] ptrace(PTRACE_ATTACH, 5974 [pid 5967] exit_group(0) = ? [pid 5972] munmap(0x7f9e50600000, 138412032 [pid 5971] <... munmap resumed>) = 0 [pid 5970] munmap(0x7f9e50600000, 138412032 [pid 5969] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5971] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5969] exit_group(0 [pid 5967] +++ exited with 0 +++ [pid 5971] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5969] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5967, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5971] close(3 [pid 5089] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5972] <... munmap resumed>) = 0 [pid 5971] <... close resumed>) = 0 [pid 5970] <... munmap resumed>) = 0 [pid 5969] +++ exited with 0 +++ [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5972] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5971] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5970] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5969, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5972] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5971] <... openat resumed>) = 3 [pid 5970] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5975 attached [pid 5971] clone(child_stack=NULL, flags=0 [pid 5975] set_robust_list(0x555566297660, 24 [pid 5972] close(3 [pid 5970] close(3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5975 ./strace-static-x86_64: Process 5976 attached [pid 5975] <... set_robust_list resumed>) = 0 [pid 5963] exit(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5971] <... clone resumed>) = 5976 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5977 attached [pid 5975] <... prctl resumed>) = 0 [pid 5971] ptrace(PTRACE_ATTACH, 5976 [pid 5977] set_robust_list(0x555566297660, 24 [pid 5975] setpgid(0, 0 [pid 5971] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5964] exit(0 [pid 5963] <... exit resumed>) = ? [pid 5977] <... set_robust_list resumed>) = 0 [pid 5975] <... setpgid resumed>) = 0 [pid 5972] <... close resumed>) = 0 [pid 5971] exit_group(0 [pid 5970] <... close resumed>) = 0 [pid 5964] <... exit resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5977 [pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5963] +++ exited with 0 +++ [pid 5975] <... openat resumed>) = 3 [pid 5975] write(3, "1000", 4 [pid 5971] <... exit_group resumed>) = ? [pid 5977] <... prctl resumed>) = 0 [pid 5975] <... write resumed>) = 4 [pid 5972] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5970] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5965] exit(0 [pid 5971] +++ exited with 0 +++ [pid 5966] exit(0 [pid 5964] +++ exited with 0 +++ [pid 5977] setpgid(0, 0 [pid 5975] close(3 [pid 5972] <... openat resumed>) = 3 [pid 5965] <... exit resumed>) = ? [pid 5966] <... exit resumed>) = ? [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5971, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5977] <... setpgid resumed>) = 0 [pid 5975] <... close resumed>) = 0 [pid 5970] <... openat resumed>) = 3 [pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5970] clone(child_stack=NULL, flags=0 [pid 5966] +++ exited with 0 +++ [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5977] <... openat resumed>) = 3 [pid 5975] memfd_create("syzkaller", 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5977] write(3, "1000", 4) = 4 [pid 5977] close(3) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5978 [pid 5968] exit(0) = ? [pid 5977] memfd_create("syzkaller", 0) = 3 [pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5965] +++ exited with 0 +++ [pid 5977] <... mmap resumed>) = 0x7f9e50600000 [pid 5968] +++ exited with 0 +++ ./strace-static-x86_64: Process 5979 attached ./strace-static-x86_64: Process 5978 attached [pid 5975] <... memfd_create resumed>) = 3 [pid 5972] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5980 attached [pid 5978] set_robust_list(0x555566297660, 24 [pid 5975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5978] <... set_robust_list resumed>) = 0 [pid 5975] <... mmap resumed>) = 0x7f9e50600000 [pid 5970] <... clone resumed>) = 5979 [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5972] <... clone resumed>) = 5980 [pid 5970] ptrace(PTRACE_ATTACH, 5979 [pid 5978] setpgid(0, 0 [pid 5970] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5978] <... setpgid resumed>) = 0 [pid 5970] exit_group(0 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5972] ptrace(PTRACE_ATTACH, 5980 [pid 5970] <... exit_group resumed>) = ? [pid 5978] <... openat resumed>) = 3 [pid 5972] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5970] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5970, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5972] exit_group(0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 5972] <... exit_group resumed>) = ? [pid 5087] <... restart_syscall resumed>) = 0 [pid 5978] write(3, "1000", 4) = 4 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5978] close(3 [pid 5972] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5981 attached [pid 5978] <... close resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5972, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5981] set_robust_list(0x555566297660, 24 [pid 5978] memfd_create("syzkaller", 0 [pid 5981] <... set_robust_list resumed>) = 0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5981 [pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5978] <... memfd_create resumed>) = 3 [pid 5975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5981] <... prctl resumed>) = 0 [pid 5978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5981] setpgid(0, 0 [pid 5978] <... mmap resumed>) = 0x7f9e50600000 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5982 attached [pid 5981] <... setpgid resumed>) = 0 [pid 5977] <... write resumed>) = 1048576 [pid 5975] <... write resumed>) = 1048576 [pid 5982] set_robust_list(0x555566297660, 24 [pid 5977] munmap(0x7f9e50600000, 138412032 [pid 5975] munmap(0x7f9e50600000, 138412032 [pid 5982] <... set_robust_list resumed>) = 0 [pid 5982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5978] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5982 [pid 5982] <... prctl resumed>) = 0 [pid 5977] <... munmap resumed>) = 0 [pid 5975] <... munmap resumed>) = 0 [pid 5981] <... openat resumed>) = 3 [pid 5982] setpgid(0, 0 [pid 5977] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5975] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5982] <... setpgid resumed>) = 0 [pid 5981] write(3, "1000", 4 [pid 5977] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5981] <... write resumed>) = 4 [pid 5977] close(3 [pid 5975] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5982] <... openat resumed>) = 3 [pid 5981] close(3 [pid 5977] <... close resumed>) = 0 [pid 5975] close(3 [pid 5981] <... close resumed>) = 0 [pid 5982] write(3, "1000", 4) = 4 [pid 5981] memfd_create("syzkaller", 0 [pid 5982] close(3) = 0 [pid 5982] memfd_create("syzkaller", 0 [pid 5981] <... memfd_create resumed>) = 3 [pid 5981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5982] <... memfd_create resumed>) = 3 [pid 5981] <... mmap resumed>) = 0x7f9e50600000 [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5982] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5978] <... write resumed>) = 1048576 [pid 5981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5978] munmap(0x7f9e50600000, 138412032 [pid 5975] <... close resumed>) = 0 [pid 5977] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5978] <... munmap resumed>) = 0 [pid 5977] clone(child_stack=NULL, flags=0 [pid 5978] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5983 attached [pid 5975] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5975] clone(child_stack=NULL, flags=0 [pid 5982] <... write resumed>) = 1048576 [pid 5981] <... write resumed>) = 1048576 [pid 5978] close(3 [pid 5977] <... clone resumed>) = 5983 [pid 5982] munmap(0x7f9e50600000, 138412032 [pid 5977] ptrace(PTRACE_ATTACH, 5983./strace-static-x86_64: Process 5984 attached [pid 5982] <... munmap resumed>) = 0 [pid 5981] munmap(0x7f9e50600000, 138412032 [pid 5977] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5975] <... clone resumed>) = 5984 [pid 5982] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5977] exit_group(0 [pid 5973] exit(0 [pid 5981] <... munmap resumed>) = 0 [pid 5977] <... exit_group resumed>) = ? [pid 5975] ptrace(PTRACE_ATTACH, 5984 [pid 5973] <... exit resumed>) = ? [pid 5982] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5975] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5973] +++ exited with 0 +++ [pid 5982] close(3 [pid 5977] +++ exited with 0 +++ [pid 5975] exit_group(0 [pid 5981] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5978] <... close resumed>) = 0 [pid 5975] <... exit_group resumed>) = ? [pid 5981] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5978] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5975] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5981] close(3 [pid 5974] exit(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5982] <... close resumed>) = 0 [pid 5974] <... exit resumed>) = ? [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5982] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] <... restart_syscall resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5982] <... openat resumed>) = 3 [pid 5981] <... close resumed>) = 0 [pid 5974] +++ exited with 0 +++ [pid 5978] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5985 attached [pid 5982] clone(child_stack=NULL, flags=0 [pid 5981] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5985 ./strace-static-x86_64: Process 5986 attached [pid 5985] set_robust_list(0x555566297660, 24 [pid 5981] <... openat resumed>) = 3 [pid 5978] clone(child_stack=NULL, flags=0 [pid 5985] <... set_robust_list resumed>) = 0 [pid 5981] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 5987 attached [pid 5985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5982] <... clone resumed>) = 5986 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5985] <... prctl resumed>) = 0 [pid 5985] setpgid(0, 0 [pid 5982] ptrace(PTRACE_ATTACH, 5986 [pid 5978] <... clone resumed>) = 5987 [pid 5976] exit(0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5988 attached [pid 5985] <... setpgid resumed>) = 0 [pid 5982] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5978] ptrace(PTRACE_ATTACH, 5987 [pid 5976] <... exit resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5981] <... clone resumed>) = 5988 [pid 5981] ptrace(PTRACE_ATTACH, 5988) = -1 EPERM (Operation not permitted) [pid 5976] +++ exited with 0 +++ [pid 5982] exit_group(0 [pid 5981] exit_group(0) = ? ./strace-static-x86_64: Process 5989 attached [pid 5985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] <... exit_group resumed>) = ? [pid 5978] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5989] set_robust_list(0x555566297660, 24 [pid 5985] <... openat resumed>) = 3 [pid 5982] +++ exited with 0 +++ [pid 5981] +++ exited with 0 +++ [pid 5978] exit_group(0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5989 [pid 5985] write(3, "1000", 4 [pid 5978] <... exit_group resumed>) = ? [pid 5989] <... set_robust_list resumed>) = 0 [pid 5985] <... write resumed>) = 4 [pid 5985] close(3 [pid 5978] +++ exited with 0 +++ [pid 5985] <... close resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5982, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5978, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5981, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5985] memfd_create("syzkaller", 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5989] <... prctl resumed>) = 0 [pid 5985] <... memfd_create resumed>) = 3 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 ./strace-static-x86_64: Process 5991 attached [pid 5989] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5990 attached [pid 5990] set_robust_list(0x555566297660, 24 [pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5990] <... set_robust_list resumed>) = 0 [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5989] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 5991 [pid 5990] <... prctl resumed>) = 0 [pid 5980] exit(0 [pid 5979] exit(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5990] setpgid(0, 0 [pid 5980] <... exit resumed>) = ? [pid 5991] set_robust_list(0x555566297660, 24 [pid 5990] <... setpgid resumed>) = 0 [pid 5989] write(3, "1000", 4 [pid 5980] +++ exited with 0 +++ [pid 5979] <... exit resumed>) = ? [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 5990 [pid 5991] <... set_robust_list resumed>) = 0 [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5989] <... write resumed>) = 4 [pid 5990] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5992 attached [pid 5991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5989] close(3 [pid 5985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5979] +++ exited with 0 +++ [pid 5991] <... prctl resumed>) = 0 [pid 5989] <... close resumed>) = 0 [pid 5992] set_robust_list(0x555566297660, 24 [pid 5991] setpgid(0, 0 [pid 5990] write(3, "1000", 4 [pid 5989] memfd_create("syzkaller", 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 5992 [pid 5990] <... write resumed>) = 4 [pid 5992] <... set_robust_list resumed>) = 0 [pid 5991] <... setpgid resumed>) = 0 [pid 5990] close(3 [pid 5989] <... memfd_create resumed>) = 3 [pid 5992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5990] <... close resumed>) = 0 [pid 5989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5992] <... prctl resumed>) = 0 [pid 5991] <... openat resumed>) = 3 [pid 5990] memfd_create("syzkaller", 0 [pid 5989] <... mmap resumed>) = 0x7f9e50600000 [pid 5992] setpgid(0, 0 [pid 5991] write(3, "1000", 4 [pid 5990] <... memfd_create resumed>) = 3 [pid 5985] <... write resumed>) = 1048576 [pid 5992] <... setpgid resumed>) = 0 [pid 5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5985] munmap(0x7f9e50600000, 138412032 [pid 5992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5991] <... write resumed>) = 4 [pid 5989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5991] close(3 [pid 5990] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5985] <... munmap resumed>) = 0 [pid 5992] <... openat resumed>) = 3 [pid 5991] <... close resumed>) = 0 [pid 5990] <... write resumed>) = 1048576 [pid 5985] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5989] <... write resumed>) = 1048576 [pid 5985] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5991] memfd_create("syzkaller", 0 [pid 5985] close(3 [pid 5992] write(3, "1000", 4 [pid 5991] <... memfd_create resumed>) = 3 [pid 5990] munmap(0x7f9e50600000, 138412032 [pid 5989] munmap(0x7f9e50600000, 138412032 [pid 5992] <... write resumed>) = 4 [pid 5991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5990] <... munmap resumed>) = 0 [pid 5989] <... munmap resumed>) = 0 [pid 5992] close(3 [pid 5991] <... mmap resumed>) = 0x7f9e50600000 [pid 5985] <... close resumed>) = 0 [pid 5992] <... close resumed>) = 0 [pid 5990] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5989] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5985] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5992] memfd_create("syzkaller", 0) = 3 [pid 5990] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5989] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5985] <... openat resumed>) = 3 [pid 5992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5990] close(3 [pid 5989] close(3 [pid 5985] clone(child_stack=NULL, flags=0 [pid 5992] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5990] <... close resumed>) = 0 [pid 5985] <... clone resumed>) = 5993 [pid 5985] ptrace(PTRACE_ATTACH, 5993) = -1 EPERM (Operation not permitted) [pid 5985] exit_group(0./strace-static-x86_64: Process 5993 attached ) = ? [pid 5985] +++ exited with 0 +++ [pid 5983] exit(0) = ? [pid 5989] <... close resumed>) = 0 [pid 5989] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5992] <... write resumed>) = 1048576 [pid 5991] <... write resumed>) = 1048576 [pid 5990] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5989] clone(child_stack=NULL, flags=0 [pid 5983] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5985, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5992] munmap(0x7f9e50600000, 138412032 [pid 5991] munmap(0x7f9e50600000, 138412032 [pid 5090] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5994 attached [pid 5992] <... munmap resumed>) = 0 [pid 5991] <... munmap resumed>) = 0 [pid 5990] <... openat resumed>) = 3 [pid 5984] exit(0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5989] <... clone resumed>) = 5994 [pid 5992] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5991] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5990] clone(child_stack=NULL, flags=0 [pid 5989] ptrace(PTRACE_ATTACH, 5994 [pid 5984] <... exit resumed>) = ? [pid 5991] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5989] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5984] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5992] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5991] close(3 [pid 5989] exit_group(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5995 attached [pid 5992] close(3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5996 attached [pid 5996] set_robust_list(0x555566297660, 24) = 0 [pid 5996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 5996 [pid 5996] <... prctl resumed>) = 0 [pid 5996] setpgid(0, 0) = 0 [pid 5996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5992] <... close resumed>) = 0 [pid 5991] <... close resumed>) = 0 [pid 5990] <... clone resumed>) = 5995 [pid 5989] <... exit_group resumed>) = ? [pid 5996] <... openat resumed>) = 3 [pid 5992] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5991] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5990] ptrace(PTRACE_ATTACH, 5995 [pid 5989] +++ exited with 0 +++ [pid 5991] <... openat resumed>) = 3 [pid 5990] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5996] write(3, "1000", 4 [pid 5992] <... openat resumed>) = 3 [pid 5991] clone(child_stack=NULL, flags=0 [pid 5990] exit_group(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5996] <... write resumed>) = 4 [pid 5992] clone(child_stack=NULL, flags=0 [pid 5990] <... exit_group resumed>) = ? [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5996] close(3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5996] <... close resumed>) = 0 [pid 5986] exit(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5997 attached ./strace-static-x86_64: Process 5998 attached [pid 5996] memfd_create("syzkaller", 0 [pid 5991] <... clone resumed>) = 5998 [pid 5990] +++ exited with 0 +++ [pid 5986] <... exit resumed>) = ? ./strace-static-x86_64: Process 5999 attached [pid 5992] <... clone resumed>) = 5997 [pid 5991] ptrace(PTRACE_ATTACH, 5998 [pid 5999] set_robust_list(0x555566297660, 24 [pid 5996] <... memfd_create resumed>) = 3 [pid 5991] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5987] exit(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5999] <... set_robust_list resumed>) = 0 [pid 5996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5988] exit(0 [pid 5987] <... exit resumed>) = ? [pid 5992] ptrace(PTRACE_ATTACH, 5997 [pid 5991] exit_group(0 [pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5992] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5991] <... exit_group resumed>) = ? [pid 5988] <... exit resumed>) = ? [pid 5986] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 5999 [pid 5996] <... mmap resumed>) = 0x7f9e50600000 [pid 5999] <... prctl resumed>) = 0 [pid 5992] exit_group(0 [pid 5991] +++ exited with 0 +++ [pid 5988] +++ exited with 0 +++ [pid 5987] +++ exited with 0 +++ [pid 5992] <... exit_group resumed>) = ? [pid 5992] +++ exited with 0 +++ [pid 5999] setpgid(0, 0) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5991, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6001 attached ./strace-static-x86_64: Process 6000 attached [pid 5999] <... openat resumed>) = 3 [pid 6001] set_robust_list(0x555566297660, 24 [pid 6000] set_robust_list(0x555566297660, 24 [pid 5999] write(3, "1000", 4 [pid 5996] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6000 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6001 [pid 6001] <... set_robust_list resumed>) = 0 [pid 6000] <... set_robust_list resumed>) = 0 [pid 5999] <... write resumed>) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5999] close(3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5999] <... close resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6001] <... prctl resumed>) = 0 [pid 6000] <... prctl resumed>) = 0 [pid 5999] memfd_create("syzkaller", 0 [pid 6001] setpgid(0, 0 [pid 6000] setpgid(0, 0 [pid 6001] <... setpgid resumed>) = 0 [pid 6000] <... setpgid resumed>) = 0 [pid 5999] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 6002 attached [pid 6002] set_robust_list(0x555566297660, 24) = 0 [pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6002] <... prctl resumed>) = 0 [pid 6002] setpgid(0, 0) = 0 [pid 5999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5999] <... mmap resumed>) = 0x7f9e50600000 [pid 6000] <... openat resumed>) = 3 [pid 5996] <... write resumed>) = 1048576 [pid 6002] <... openat resumed>) = 3 [pid 6001] <... openat resumed>) = 3 [pid 6000] write(3, "1000", 4 [pid 5996] munmap(0x7f9e50600000, 138412032 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6002 [pid 6002] write(3, "1000", 4 [pid 6001] write(3, "1000", 4 [pid 6000] <... write resumed>) = 4 [pid 5996] <... munmap resumed>) = 0 [pid 6002] <... write resumed>) = 4 [pid 6000] close(3 [pid 6002] close(3 [pid 6001] <... write resumed>) = 4 [pid 6000] <... close resumed>) = 0 [pid 6002] <... close resumed>) = 0 [pid 6001] close(3 [pid 6002] memfd_create("syzkaller", 0 [pid 6001] <... close resumed>) = 0 [pid 6000] memfd_create("syzkaller", 0 [pid 5999] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6002] <... memfd_create resumed>) = 3 [pid 6001] memfd_create("syzkaller", 0 [pid 6000] <... memfd_create resumed>) = 3 [pid 6000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5996] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6001] <... memfd_create resumed>) = 3 [pid 5996] close(3 [pid 6002] <... mmap resumed>) = 0x7f9e50600000 [pid 6000] <... mmap resumed>) = 0x7f9e50600000 [pid 6002] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5996] <... close resumed>) = 0 [pid 6000] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5999] <... write resumed>) = 1048576 [pid 5996] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5996] clone(child_stack=NULL, flags=0 [pid 5999] munmap(0x7f9e50600000, 138412032 [pid 5996] <... clone resumed>) = 6003 ./strace-static-x86_64: Process 6003 attached [pid 5996] ptrace(PTRACE_ATTACH, 6003 [pid 5999] <... munmap resumed>) = 0 [pid 5996] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5999] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5996] exit_group(0) = ? [pid 5999] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6000] <... write resumed>) = 1048576 [pid 5999] close(3 [pid 5996] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5996, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6002] <... write resumed>) = 1048576 [pid 6001] <... write resumed>) = 1048576 [pid 6000] munmap(0x7f9e50600000, 138412032 [pid 5999] <... close resumed>) = 0 [pid 6002] munmap(0x7f9e50600000, 138412032 [pid 6001] munmap(0x7f9e50600000, 138412032 [pid 5999] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6002] <... munmap resumed>) = 0 [pid 5999] <... openat resumed>) = 3 [pid 5993] exit(0) = ? [pid 6002] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6001] <... munmap resumed>) = 0 [pid 6000] <... munmap resumed>) = 0 [pid 5999] clone(child_stack=NULL, flags=0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6002] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6001] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6000] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5993] +++ exited with 0 +++ [pid 6001] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6000] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6002] close(3 [pid 6001] close(3 [pid 6000] close(3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6004 attached [pid 5999] <... clone resumed>) = 6004 [pid 5999] ptrace(PTRACE_ATTACH, 6004./strace-static-x86_64: Process 6005 attached [pid 6002] <... close resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6000] <... close resumed>) = 0 [pid 6005] set_robust_list(0x555566297660, 24 [pid 6002] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6001] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6000] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5999] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5994] exit(0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6005 [pid 6005] <... set_robust_list resumed>) = 0 [pid 6002] <... openat resumed>) = 3 [pid 6000] <... openat resumed>) = 3 [pid 5999] exit_group(0 [pid 5994] <... exit resumed>) = ? [pid 6005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6001] <... openat resumed>) = 3 [pid 5995] exit(0 [pid 6005] <... prctl resumed>) = 0 [pid 6002] clone(child_stack=NULL, flags=0 [pid 6000] clone(child_stack=NULL, flags=0 [pid 5999] <... exit_group resumed>) = ? [pid 5995] <... exit resumed>) = ? ./strace-static-x86_64: Process 6006 attached [pid 6005] setpgid(0, 0 [pid 6001] clone(child_stack=NULL, flags=0 [pid 5999] +++ exited with 0 +++ [pid 5995] +++ exited with 0 +++ [pid 5994] +++ exited with 0 +++ [pid 6005] <... setpgid resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5999, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6002] <... clone resumed>) = 6006 ./strace-static-x86_64: Process 6007 attached [pid 6005] <... openat resumed>) = 3 [pid 6002] ptrace(PTRACE_ATTACH, 6006./strace-static-x86_64: Process 6008 attached [pid 6005] write(3, "1000", 4 [pid 6002] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6000] <... clone resumed>) = 6007 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6005] <... write resumed>) = 4 [pid 6002] exit_group(0 [pid 6001] <... clone resumed>) = 6008 [pid 6000] ptrace(PTRACE_ATTACH, 6007 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6005] close(3 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6005] <... close resumed>) = 0 [pid 6002] <... exit_group resumed>) = ? [pid 6001] ptrace(PTRACE_ATTACH, 6008 [pid 6000] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 6009 attached [pid 6005] memfd_create("syzkaller", 0 [pid 6009] set_robust_list(0x555566297660, 24) = 0 [pid 6005] <... memfd_create resumed>) = 3 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6009 [pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6001] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6000] exit_group(0 [pid 6009] <... prctl resumed>) = 0 [pid 6005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6009] setpgid(0, 0 [pid 6001] exit_group(0 [pid 6000] <... exit_group resumed>) = ? [pid 5998] exit(0 [pid 6009] <... setpgid resumed>) = 0 [pid 6005] <... mmap resumed>) = 0x7f9e50600000 [pid 6001] <... exit_group resumed>) = ? [pid 5998] <... exit resumed>) = ? [pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6000] +++ exited with 0 +++ [pid 6001] +++ exited with 0 +++ [pid 5997] exit(0 [pid 5998] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6000, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6009] <... openat resumed>) = 3 [pid 6002] +++ exited with 0 +++ [pid 5997] <... exit resumed>) = ? [pid 6009] write(3, "1000", 4 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6002, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6009] <... write resumed>) = 4 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 6009] close(3 [pid 5997] +++ exited with 0 +++ [pid 5087] <... restart_syscall resumed>) = 0 [pid 6009] <... close resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6009] memfd_create("syzkaller", 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6009] <... memfd_create resumed>) = 3 [pid 6005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6010 attached [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6010] set_robust_list(0x555566297660, 24 [pid 6009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 6012 attached ./strace-static-x86_64: Process 6011 attached [pid 6010] <... set_robust_list resumed>) = 0 [pid 6009] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6010 [pid 6012] set_robust_list(0x555566297660, 24 [pid 6011] set_robust_list(0x555566297660, 24 [pid 6010] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6011 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6012 [pid 6011] <... set_robust_list resumed>) = 0 [pid 6012] <... set_robust_list resumed>) = 0 [pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6010] <... prctl resumed>) = 0 [pid 6012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6011] <... prctl resumed>) = 0 [pid 6010] setpgid(0, 0 [pid 6012] <... prctl resumed>) = 0 [pid 6011] setpgid(0, 0 [pid 6010] <... setpgid resumed>) = 0 [pid 6012] setpgid(0, 0 [pid 6011] <... setpgid resumed>) = 0 [pid 6010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] <... setpgid resumed>) = 0 [pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6011] <... openat resumed>) = 3 [pid 6010] <... openat resumed>) = 3 [pid 6012] <... openat resumed>) = 3 [pid 6010] write(3, "1000", 4 [pid 6011] write(3, "1000", 4) = 4 [pid 6012] write(3, "1000", 4 [pid 6011] close(3 [pid 6010] <... write resumed>) = 4 [pid 6012] <... write resumed>) = 4 [pid 6010] close(3 [pid 6012] close(3) = 0 [pid 6011] <... close resumed>) = 0 [pid 6010] <... close resumed>) = 0 [pid 6012] memfd_create("syzkaller", 0 [pid 6011] memfd_create("syzkaller", 0 [pid 6010] memfd_create("syzkaller", 0 [pid 6011] <... memfd_create resumed>) = 3 [pid 6012] <... memfd_create resumed>) = 3 [pid 6011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6010] <... memfd_create resumed>) = 3 [pid 6005] <... write resumed>) = 1048576 [pid 6011] <... mmap resumed>) = 0x7f9e50600000 [pid 6012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6005] munmap(0x7f9e50600000, 138412032 [pid 6012] <... mmap resumed>) = 0x7f9e50600000 [pid 6010] <... mmap resumed>) = 0x7f9e50600000 [pid 6005] <... munmap resumed>) = 0 [pid 6011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6010] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6005] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6009] <... write resumed>) = 1048576 [pid 6005] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6009] munmap(0x7f9e50600000, 138412032 [pid 6005] close(3 [pid 6012] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6009] <... munmap resumed>) = 0 [pid 6009] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6005] <... close resumed>) = 0 [pid 6009] close(3 [pid 6005] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6011] <... write resumed>) = 1048576 [pid 6009] <... close resumed>) = 0 [pid 6005] <... openat resumed>) = 3 [pid 6003] exit(0) = ? [pid 6011] munmap(0x7f9e50600000, 138412032 [pid 6005] clone(child_stack=NULL, flags=0 [pid 6011] <... munmap resumed>) = 0 [pid 6003] +++ exited with 0 +++ [pid 6012] <... write resumed>) = 1048576 [pid 6005] <... clone resumed>) = 6013 [pid 6011] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6009] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6011] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6010] <... write resumed>) = 1048576 [pid 6005] ptrace(PTRACE_ATTACH, 6013./strace-static-x86_64: Process 6013 attached [pid 6012] munmap(0x7f9e50600000, 138412032 [pid 6009] <... openat resumed>) = 3 [pid 6011] close(3 [pid 6010] munmap(0x7f9e50600000, 138412032 [pid 6009] clone(child_stack=NULL, flags=0 [pid 6005] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6010] <... munmap resumed>) = 0 [pid 6012] <... munmap resumed>) = 0 [pid 6010] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6005] exit_group(0./strace-static-x86_64: Process 6014 attached [pid 6012] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6010] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6005] <... exit_group resumed>) = ? [pid 6012] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6010] close(3 [pid 6009] <... clone resumed>) = 6014 [pid 6012] close(3 [pid 6011] <... close resumed>) = 0 [pid 6005] +++ exited with 0 +++ [pid 6011] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6010] <... close resumed>) = 0 [pid 6009] ptrace(PTRACE_ATTACH, 6014 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6005, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6009] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6009] exit_group(0 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6010] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6009] <... exit_group resumed>) = ? [pid 6004] exit(0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6012] <... close resumed>) = 0 [pid 6010] <... openat resumed>) = 3 [pid 6004] <... exit resumed>) = ? ./strace-static-x86_64: Process 6015 attached [pid 6012] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6010] clone(child_stack=NULL, flags=0 [pid 6009] +++ exited with 0 +++ [pid 6004] +++ exited with 0 +++ ./strace-static-x86_64: Process 6016 attached [pid 6015] set_robust_list(0x555566297660, 24 [pid 6012] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6015 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6009, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6012] clone(child_stack=NULL, flags=0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6018 attached ./strace-static-x86_64: Process 6017 attached [pid 6018] set_robust_list(0x555566297660, 24 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6018 [pid 6018] <... set_robust_list resumed>) = 0 [pid 6011] <... openat resumed>) = 3 [pid 6015] <... set_robust_list resumed>) = 0 [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6010] <... clone resumed>) = 6016 [pid 6018] <... prctl resumed>) = 0 [pid 6015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6012] <... clone resumed>) = 6017 [pid 6011] clone(child_stack=NULL, flags=0 [pid 6018] setpgid(0, 0) = 0 [pid 6012] ptrace(PTRACE_ATTACH, 6017) = -1 EPERM (Operation not permitted) [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] exit_group(0 [pid 6010] ptrace(PTRACE_ATTACH, 6016 [pid 6012] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6019 attached [pid 6018] <... openat resumed>) = 3 [pid 6015] <... prctl resumed>) = 0 [pid 6012] +++ exited with 0 +++ [pid 6010] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6018] write(3, "1000", 4 [pid 6015] setpgid(0, 0 [pid 6011] <... clone resumed>) = 6019 [pid 6010] exit_group(0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6012, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6018] <... write resumed>) = 4 [pid 6015] <... setpgid resumed>) = 0 [pid 6010] <... exit_group resumed>) = ? [pid 6018] close(3 [pid 6015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6011] ptrace(PTRACE_ATTACH, 6019 [pid 6018] <... close resumed>) = 0 [pid 6015] <... openat resumed>) = 3 [pid 6011] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6018] memfd_create("syzkaller", 0 [pid 6011] exit_group(0 [pid 6015] write(3, "1000", 4 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6015] <... write resumed>) = 4 [pid 6011] <... exit_group resumed>) = ? [pid 6010] +++ exited with 0 +++ [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6018] <... memfd_create resumed>) = 3 [pid 6015] close(3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6020 attached [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6015] <... close resumed>) = 0 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 6011] +++ exited with 0 +++ [pid 6020] set_robust_list(0x555566297660, 24 [pid 6018] <... mmap resumed>) = 0x7f9e50600000 [pid 6015] memfd_create("syzkaller", 0 [pid 6006] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6011, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] <... restart_syscall resumed>) = 0 [pid 6006] <... exit resumed>) = ? [pid 6020] <... set_robust_list resumed>) = 0 [pid 6015] <... memfd_create resumed>) = 3 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6020 [pid 6015] <... mmap resumed>) = 0x7f9e50600000 [pid 6007] exit(0 [pid 6006] +++ exited with 0 +++ [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6008] exit(0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6008] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6007] <... exit resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6020] <... prctl resumed>) = 0 [pid 6008] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6020] setpgid(0, 0./strace-static-x86_64: Process 6021 attached [pid 6007] +++ exited with 0 +++ [pid 6020] <... setpgid resumed>) = 0 [pid 6021] set_robust_list(0x555566297660, 24) = 0 [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6022 attached [pid 6021] <... prctl resumed>) = 0 [pid 6022] set_robust_list(0x555566297660, 24 [pid 6021] setpgid(0, 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6021 [pid 6022] <... set_robust_list resumed>) = 0 [pid 6021] <... setpgid resumed>) = 0 [pid 6020] <... openat resumed>) = 3 [pid 6018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6022 [pid 6022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6020] write(3, "1000", 4) = 4 [pid 6020] close(3) = 0 [pid 6022] <... prctl resumed>) = 0 [pid 6020] memfd_create("syzkaller", 0 [pid 6022] setpgid(0, 0 [pid 6020] <... memfd_create resumed>) = 3 [pid 6022] <... setpgid resumed>) = 0 [pid 6021] <... openat resumed>) = 3 [pid 6020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6021] write(3, "1000", 4 [pid 6022] write(3, "1000", 4) = 4 [pid 6021] <... write resumed>) = 4 [pid 6022] close(3 [pid 6021] close(3 [pid 6022] <... close resumed>) = 0 [pid 6021] <... close resumed>) = 0 [pid 6022] memfd_create("syzkaller", 0) = 3 [pid 6022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6021] memfd_create("syzkaller", 0 [pid 6022] <... mmap resumed>) = 0x7f9e50600000 [pid 6020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6021] <... memfd_create resumed>) = 3 [pid 6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6018] <... write resumed>) = 1048576 [pid 6022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6020] <... write resumed>) = 1048576 [pid 6018] munmap(0x7f9e50600000, 138412032) = 0 [pid 6020] munmap(0x7f9e50600000, 138412032 [pid 6018] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6015] <... write resumed>) = 1048576 [pid 6015] munmap(0x7f9e50600000, 138412032 [pid 6022] <... write resumed>) = 1048576 [pid 6021] <... write resumed>) = 1048576 [pid 6020] <... munmap resumed>) = 0 [pid 6018] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6021] munmap(0x7f9e50600000, 138412032 [pid 6018] close(3 [pid 6022] munmap(0x7f9e50600000, 138412032 [pid 6020] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6015] <... munmap resumed>) = 0 [pid 6021] <... munmap resumed>) = 0 [pid 6022] <... munmap resumed>) = 0 [pid 6021] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6020] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6021] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6020] close(3 [pid 6015] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6022] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6021] close(3 [pid 6018] <... close resumed>) = 0 [pid 6022] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6015] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6018] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6015] close(3 [pid 6022] close(3 [pid 6018] <... openat resumed>) = 3 [pid 6022] <... close resumed>) = 0 [pid 6018] clone(child_stack=NULL, flags=0 [pid 6020] <... close resumed>) = 0 ./strace-static-x86_64: Process 6023 attached [pid 6022] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6020] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6018] <... clone resumed>) = 6023 [pid 6015] <... close resumed>) = 0 [pid 6021] <... close resumed>) = 0 [pid 6021] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6018] ptrace(PTRACE_ATTACH, 6023 [pid 6015] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6018] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6018] exit_group(0 [pid 6022] <... openat resumed>) = 3 [pid 6015] <... openat resumed>) = 3 [pid 6022] clone(child_stack=NULL, flags=0 [pid 6020] <... openat resumed>) = 3 [pid 6018] <... exit_group resumed>) = ? [pid 6015] clone(child_stack=NULL, flags=0 [pid 6021] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6025 attached ./strace-static-x86_64: Process 6024 attached [pid 6020] clone(child_stack=NULL, flags=0 [pid 6018] +++ exited with 0 +++ [pid 6021] clone(child_stack=NULL, flags=0 [pid 6015] <... clone resumed>) = 6025 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6022] <... clone resumed>) = 6024 [pid 6015] ptrace(PTRACE_ATTACH, 6025 [pid 6014] exit(0 [pid 6015] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6014] <... exit resumed>) = ? [pid 6015] exit_group(0) = ? [pid 6014] +++ exited with 0 +++ [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6013] exit(0 [pid 6022] ptrace(PTRACE_ATTACH, 6024 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6015] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6015, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 6026 attached [pid 6013] <... exit resumed>) = ? [pid 6022] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6022] exit_group(0 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6026] set_robust_list(0x555566297660, 24 [pid 6022] <... exit_group resumed>) = ? [pid 6026] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6027 attached [pid 6020] <... clone resumed>) = 6027 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6026] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6020] ptrace(PTRACE_ATTACH, 6027 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6028 attached [pid 6026] <... prctl resumed>) = 0 [pid 6020] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6026 [pid 6020] exit_group(0./strace-static-x86_64: Process 6029 attached [pid 6029] set_robust_list(0x555566297660, 24 [pid 6020] <... exit_group resumed>) = ? [pid 6029] <... set_robust_list resumed>) = 0 [pid 6026] setpgid(0, 0 [pid 6022] +++ exited with 0 +++ [pid 6021] <... clone resumed>) = 6028 [pid 6013] +++ exited with 0 +++ [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6029 [pid 6029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6026] <... setpgid resumed>) = 0 [pid 6021] ptrace(PTRACE_ATTACH, 6028 [pid 6020] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6029] <... prctl resumed>) = 0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6029] setpgid(0, 0 [pid 6021] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] <... restart_syscall resumed>) = 0 [pid 6029] <... setpgid resumed>) = 0 [pid 6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6021] exit_group(0 [pid 6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6026] <... openat resumed>) = 3 [pid 6021] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6029] <... openat resumed>) = 3 [pid 6026] write(3, "1000", 4 [pid 6017] exit(0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6029] write(3, "1000", 4 [pid 6026] <... write resumed>) = 4 [pid 6021] +++ exited with 0 +++ [pid 6017] <... exit resumed>) = ? [pid 6016] exit(0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6029] <... write resumed>) = 4 [pid 6026] close(3 [pid 6016] <... exit resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6021, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6029] close(3 [pid 6026] <... close resumed>) = 0 [pid 6017] +++ exited with 0 +++ [pid 6016] +++ exited with 0 +++ [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6030 attached [pid 6029] <... close resumed>) = 0 [pid 6026] memfd_create("syzkaller", 0 [pid 6030] set_robust_list(0x555566297660, 24 [pid 6029] memfd_create("syzkaller", 0 [pid 6026] <... memfd_create resumed>) = 3 [pid 6019] exit(0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6030 [pid 6030] <... set_robust_list resumed>) = 0 [pid 6019] <... exit resumed>) = ? [pid 6029] <... memfd_create resumed>) = 3 [pid 6026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6026] <... mmap resumed>) = 0x7f9e50600000 ./strace-static-x86_64: Process 6031 attached [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6029] <... mmap resumed>) = 0x7f9e50600000 [pid 6019] +++ exited with 0 +++ [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6031] set_robust_list(0x555566297660, 24 [pid 6030] <... prctl resumed>) = 0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6031] <... set_robust_list resumed>) = 0 [pid 6030] setpgid(0, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6031 [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6026] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6031] <... prctl resumed>) = 0 [pid 6030] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6032 attached [pid 6032] set_robust_list(0x555566297660, 24) = 0 [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6032] setpgid(0, 0 [pid 6031] setpgid(0, 0 [pid 6032] <... setpgid resumed>) = 0 [pid 6031] <... setpgid resumed>) = 0 [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6030] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6032 [pid 6031] <... openat resumed>) = 3 [pid 6030] write(3, "1000", 4 [pid 6031] write(3, "1000", 4 [pid 6030] <... write resumed>) = 4 [pid 6031] <... write resumed>) = 4 [pid 6030] close(3 [pid 6031] close(3 [pid 6030] <... close resumed>) = 0 [pid 6031] <... close resumed>) = 0 [pid 6030] memfd_create("syzkaller", 0 [pid 6031] memfd_create("syzkaller", 0 [pid 6030] <... memfd_create resumed>) = 3 [pid 6031] <... memfd_create resumed>) = 3 [pid 6030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6030] <... mmap resumed>) = 0x7f9e50600000 [pid 6031] <... mmap resumed>) = 0x7f9e50600000 [pid 6032] <... openat resumed>) = 3 [pid 6029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6026] <... write resumed>) = 1048576 [pid 6032] write(3, "1000", 4) = 4 [pid 6032] close(3) = 0 [pid 6032] memfd_create("syzkaller", 0) = 3 [pid 6032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6030] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6026] munmap(0x7f9e50600000, 138412032 [pid 6031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6026] <... munmap resumed>) = 0 [pid 6029] <... write resumed>) = 1048576 [pid 6026] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6026] close(3 [pid 6030] <... write resumed>) = 1048576 [pid 6031] <... write resumed>) = 1048576 [pid 6030] munmap(0x7f9e50600000, 138412032 [pid 6029] munmap(0x7f9e50600000, 138412032 [pid 6026] <... close resumed>) = 0 [pid 6029] <... munmap resumed>) = 0 [pid 6032] <... write resumed>) = 1048576 [pid 6031] munmap(0x7f9e50600000, 138412032 [pid 6030] <... munmap resumed>) = 0 [pid 6026] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6029] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6032] munmap(0x7f9e50600000, 138412032 [pid 6026] <... openat resumed>) = 3 [pid 6032] <... munmap resumed>) = 0 [pid 6031] <... munmap resumed>) = 0 [pid 6030] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6029] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6026] clone(child_stack=NULL, flags=0 [pid 6032] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6031] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6030] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6029] close(3 [pid 6032] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6031] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6030] close(3./strace-static-x86_64: Process 6033 attached [pid 6032] close(3 [pid 6031] close(3 [pid 6030] <... close resumed>) = 0 [pid 6029] <... close resumed>) = 0 [pid 6026] <... clone resumed>) = 6033 [pid 6031] <... close resumed>) = 0 [pid 6030] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6029] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6026] ptrace(PTRACE_ATTACH, 6033 [pid 6032] <... close resumed>) = 0 [pid 6026] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6032] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6031] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6030] <... openat resumed>) = 3 [pid 6029] <... openat resumed>) = 3 [pid 6026] exit_group(0 [pid 6032] <... openat resumed>) = 3 [pid 6029] clone(child_stack=NULL, flags=0 [pid 6026] <... exit_group resumed>) = ? [pid 6031] <... openat resumed>) = 3 [pid 6030] clone(child_stack=NULL, flags=0 [pid 6023] exit(0) = ? ./strace-static-x86_64: Process 6034 attached [pid 6032] clone(child_stack=NULL, flags=0 [pid 6031] clone(child_stack=NULL, flags=0 [pid 6026] +++ exited with 0 +++ [pid 6023] +++ exited with 0 +++ ./strace-static-x86_64: Process 6035 attached [pid 6030] <... clone resumed>) = 6035 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6026, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6030] ptrace(PTRACE_ATTACH, 6035) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 6037 attached ./strace-static-x86_64: Process 6036 attached [pid 6030] exit_group(0 [pid 6029] <... clone resumed>) = 6034 [pid 6031] <... clone resumed>) = 6037 [pid 6032] <... clone resumed>) = 6036 [pid 6031] ptrace(PTRACE_ATTACH, 6037 [pid 6030] <... exit_group resumed>) = ? [pid 6029] ptrace(PTRACE_ATTACH, 6034 [pid 6024] exit(0 [pid 6032] ptrace(PTRACE_ATTACH, 6036 [pid 6031] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6024] <... exit resumed>) = ? [pid 6029] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6032] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6031] exit_group(0) = ? [pid 6025] exit(0) = ? [pid 6024] +++ exited with 0 +++ [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6032] exit_group(0 [pid 6030] +++ exited with 0 +++ [pid 6029] exit_group(0 [pid 6032] <... exit_group resumed>) = ? [pid 6029] <... exit_group resumed>) = ? [pid 6027] exit(0 [pid 6031] +++ exited with 0 +++ [pid 6025] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6030, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6032] +++ exited with 0 +++ [pid 6028] exit(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6038 attached [pid 6029] +++ exited with 0 +++ [pid 6028] <... exit resumed>) = ? [pid 6027] <... exit resumed>) = ? [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6031, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6038] set_robust_list(0x555566297660, 24 [pid 6028] +++ exited with 0 +++ [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6029, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6038] <... set_robust_list resumed>) = 0 [pid 6027] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6032, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 6039 attached [pid 6038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6038 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6039] set_robust_list(0x555566297660, 24 [pid 6038] <... prctl resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6039 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6039] <... set_robust_list resumed>) = 0 [pid 6038] setpgid(0, 0) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6040 attached [pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6038] <... openat resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6040 ./strace-static-x86_64: Process 6041 attached [pid 6040] set_robust_list(0x555566297660, 24 [pid 6039] <... prctl resumed>) = 0 [pid 6038] write(3, "1000", 4 [pid 6041] set_robust_list(0x555566297660, 24 [pid 6040] <... set_robust_list resumed>) = 0 [pid 6039] setpgid(0, 0 [pid 6041] <... set_robust_list resumed>) = 0 [pid 6040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6039] <... setpgid resumed>) = 0 [pid 6038] <... write resumed>) = 4 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6040] <... prctl resumed>) = 0 [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6038] close(3 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6041 [pid 6041] <... prctl resumed>) = 0 [pid 6040] setpgid(0, 0 [pid 6038] <... close resumed>) = 0 [pid 6041] setpgid(0, 0) = 0 [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6040] <... setpgid resumed>) = 0 [pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6038] memfd_create("syzkaller", 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6041] <... openat resumed>) = 3 [pid 6041] write(3, "1000", 4./strace-static-x86_64: Process 6042 attached [pid 6040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] <... openat resumed>) = 3 [pid 6038] <... memfd_create resumed>) = 3 [pid 6042] set_robust_list(0x555566297660, 24 [pid 6041] <... write resumed>) = 4 [pid 6039] write(3, "1000", 4 [pid 6038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6042 [pid 6039] <... write resumed>) = 4 [pid 6038] <... mmap resumed>) = 0x7f9e50600000 [pid 6042] <... set_robust_list resumed>) = 0 [pid 6041] close(3 [pid 6040] <... openat resumed>) = 3 [pid 6039] close(3 [pid 6042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6041] <... close resumed>) = 0 [pid 6040] write(3, "1000", 4 [pid 6039] <... close resumed>) = 0 [pid 6039] memfd_create("syzkaller", 0 [pid 6041] memfd_create("syzkaller", 0 [pid 6042] <... prctl resumed>) = 0 [pid 6040] <... write resumed>) = 4 [pid 6039] <... memfd_create resumed>) = 3 [pid 6042] setpgid(0, 0 [pid 6040] close(3 [pid 6042] <... setpgid resumed>) = 0 [pid 6041] <... memfd_create resumed>) = 3 [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6040] <... close resumed>) = 0 [pid 6039] <... mmap resumed>) = 0x7f9e50600000 [pid 6042] <... openat resumed>) = 3 [pid 6041] <... mmap resumed>) = 0x7f9e50600000 [pid 6040] memfd_create("syzkaller", 0 [pid 6039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6042] write(3, "1000", 4) = 4 [pid 6040] <... memfd_create resumed>) = 3 [pid 6040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6042] close(3) = 0 [pid 6040] <... mmap resumed>) = 0x7f9e50600000 [pid 6042] memfd_create("syzkaller", 0) = 3 [pid 6039] <... write resumed>) = 1048576 [pid 6042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6040] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6038] <... write resumed>) = 1048576 [pid 6042] <... mmap resumed>) = 0x7f9e50600000 [pid 6039] munmap(0x7f9e50600000, 138412032 [pid 6038] munmap(0x7f9e50600000, 138412032) = 0 [pid 6039] <... munmap resumed>) = 0 [pid 6038] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6042] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6041] <... write resumed>) = 1048576 [pid 6039] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6041] munmap(0x7f9e50600000, 138412032 [pid 6038] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6041] <... munmap resumed>) = 0 [pid 6040] <... write resumed>) = 1048576 [pid 6038] close(3 [pid 6039] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6041] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6038] <... close resumed>) = 0 [pid 6041] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6039] close(3 [pid 6041] close(3) = 0 [pid 6039] <... close resumed>) = 0 [pid 6040] munmap(0x7f9e50600000, 138412032) = 0 [pid 6039] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6040] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6039] <... openat resumed>) = 3 [pid 6033] exit(0 [pid 6040] close(3 [pid 6039] clone(child_stack=NULL, flags=0 [pid 6033] <... exit resumed>) = ? [pid 6040] <... close resumed>) = 0 [pid 6038] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 6041] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6038] clone(child_stack=NULL, flags=0 [pid 6041] <... openat resumed>) = 3 [pid 6033] +++ exited with 0 +++ [pid 6041] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 6044 attached ./strace-static-x86_64: Process 6043 attached [pid 6042] <... write resumed>) = 1048576 [pid 6039] <... clone resumed>) = 6044 [pid 6035] exit(0) = ? [pid 6039] ptrace(PTRACE_ATTACH, 6044 [pid 6038] <... clone resumed>) = 6043 [pid 6038] ptrace(PTRACE_ATTACH, 6043) = -1 EPERM (Operation not permitted) [pid 6038] exit_group(0 [pid 6035] +++ exited with 0 +++ [pid 6042] munmap(0x7f9e50600000, 138412032 [pid 6039] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6038] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6045 attached [pid 6042] <... munmap resumed>) = 0 [pid 6039] exit_group(0 [pid 6038] +++ exited with 0 +++ [pid 6041] <... clone resumed>) = 6045 [pid 6040] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6042] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6041] ptrace(PTRACE_ATTACH, 6045 [pid 6040] <... openat resumed>) = 3 [pid 6039] <... exit_group resumed>) = ? [pid 6041] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6040] clone(child_stack=NULL, flags=0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6041] exit_group(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6039] +++ exited with 0 +++ [pid 6042] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6041] <... exit_group resumed>) = ? [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 6046 attached [pid 6042] close(3 [pid 6041] +++ exited with 0 +++ [pid 6037] exit(0 [pid 6036] exit(0 [pid 6034] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6039, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6040] <... clone resumed>) = 6046 [pid 6037] <... exit resumed>) = ? [pid 6036] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 6047 attached [pid 6040] ptrace(PTRACE_ATTACH, 6046 [pid 6037] +++ exited with 0 +++ [pid 6036] +++ exited with 0 +++ [pid 6034] <... exit resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6047] set_robust_list(0x555566297660, 24 [pid 6040] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 6040] exit_group(0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6047 [pid 5087] <... restart_syscall resumed>) = 0 [pid 6034] +++ exited with 0 +++ [pid 6047] <... set_robust_list resumed>) = 0 [pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6040] <... exit_group resumed>) = ? [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 6048 attached [pid 6047] <... prctl resumed>) = 0 [pid 6040] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6048 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6048] set_robust_list(0x555566297660, 24 [pid 6047] setpgid(0, 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6048] <... set_robust_list resumed>) = 0 [pid 6047] <... setpgid resumed>) = 0 [pid 6042] <... close resumed>) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6040, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 6049 attached [pid 6048] <... prctl resumed>) = 0 [pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6042] <... openat resumed>) = 3 [pid 5088] <... restart_syscall resumed>) = 0 [pid 6049] set_robust_list(0x555566297660, 24 [pid 6048] setpgid(0, 0 [pid 6049] <... set_robust_list resumed>) = 0 [pid 6048] <... setpgid resumed>) = 0 [pid 6047] <... openat resumed>) = 3 [pid 6042] clone(child_stack=NULL, flags=0 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6049 [pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6047] write(3, "1000", 4 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6049] <... prctl resumed>) = 0 [pid 6049] setpgid(0, 0 [pid 6048] <... openat resumed>) = 3 [pid 6047] <... write resumed>) = 4 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6049] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6050 attached [pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6048] write(3, "1000", 4 [pid 6047] close(3 [pid 6042] <... clone resumed>) = 6050 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6049] <... openat resumed>) = 3 [pid 6048] <... write resumed>) = 4 [pid 6047] <... close resumed>) = 0 [pid 6042] ptrace(PTRACE_ATTACH, 6050./strace-static-x86_64: Process 6051 attached [pid 6049] write(3, "1000", 4 [pid 6048] close(3 [pid 6047] memfd_create("syzkaller", 0 [pid 6042] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6051] set_robust_list(0x555566297660, 24 [pid 6049] <... write resumed>) = 4 [pid 6048] <... close resumed>) = 0 [pid 6047] <... memfd_create resumed>) = 3 [pid 6042] exit_group(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6051 [pid 6051] <... set_robust_list resumed>) = 0 [pid 6049] close(3 [pid 6048] memfd_create("syzkaller", 0 [pid 6047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6049] <... close resumed>) = 0 [pid 6048] <... memfd_create resumed>) = 3 [pid 6047] <... mmap resumed>) = 0x7f9e50600000 [pid 6042] <... exit_group resumed>) = ? [pid 6051] <... prctl resumed>) = 0 [pid 6049] memfd_create("syzkaller", 0 [pid 6048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6042] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6042, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6048] <... mmap resumed>) = 0x7f9e50600000 [pid 6051] setpgid(0, 0) = 0 [pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6049] <... memfd_create resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6051] <... openat resumed>) = 3 [pid 6047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 6052 attached [pid 6051] write(3, "1000", 4 [pid 6049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6048] <... write resumed>) = 1048576 [pid 6052] set_robust_list(0x555566297660, 24 [pid 6051] <... write resumed>) = 4 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6052 [pid 6052] <... set_robust_list resumed>) = 0 [pid 6051] close(3 [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6051] <... close resumed>) = 0 [pid 6048] munmap(0x7f9e50600000, 138412032 [pid 6052] <... prctl resumed>) = 0 [pid 6051] memfd_create("syzkaller", 0 [pid 6048] <... munmap resumed>) = 0 [pid 6052] setpgid(0, 0 [pid 6051] <... memfd_create resumed>) = 3 [pid 6052] <... setpgid resumed>) = 0 [pid 6051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6048] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6051] <... mmap resumed>) = 0x7f9e50600000 [pid 6049] <... write resumed>) = 1048576 [pid 6048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6052] <... openat resumed>) = 3 [pid 6048] close(3 [pid 6047] <... write resumed>) = 1048576 [pid 6049] munmap(0x7f9e50600000, 138412032 [pid 6052] write(3, "1000", 4 [pid 6051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6049] <... munmap resumed>) = 0 [pid 6047] munmap(0x7f9e50600000, 138412032 [pid 6052] <... write resumed>) = 4 [pid 6052] close(3) = 0 [pid 6052] memfd_create("syzkaller", 0 [pid 6049] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6052] <... memfd_create resumed>) = 3 [pid 6048] <... close resumed>) = 0 [pid 6047] <... munmap resumed>) = 0 [pid 6052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6048] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6047] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6052] <... mmap resumed>) = 0x7f9e50600000 [pid 6049] close(3 [pid 6048] <... openat resumed>) = 3 [pid 6047] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6047] close(3) = 0 [pid 6051] <... write resumed>) = 1048576 [pid 6048] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 6053 attached [pid 6051] munmap(0x7f9e50600000, 138412032 [pid 6052] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6051] <... munmap resumed>) = 0 [pid 6049] <... close resumed>) = 0 [pid 6048] <... clone resumed>) = 6053 [pid 6047] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6051] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6048] ptrace(PTRACE_ATTACH, 6053 [pid 6051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6048] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6051] close(3 [pid 6047] <... openat resumed>) = 3 [pid 6052] <... write resumed>) = 1048576 [pid 6051] <... close resumed>) = 0 [pid 6049] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6048] exit_group(0 [pid 6047] clone(child_stack=NULL, flags=0 [pid 6049] <... openat resumed>) = 3 [pid 6048] <... exit_group resumed>) = ? [pid 6051] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 6054 attached [pid 6052] munmap(0x7f9e50600000, 138412032 [pid 6049] clone(child_stack=NULL, flags=0 [pid 6048] +++ exited with 0 +++ [pid 6044] exit(0 [pid 6043] exit(0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6048, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6044] <... exit resumed>) = ? [pid 6043] <... exit resumed>) = ? ./strace-static-x86_64: Process 6055 attached [pid 6052] <... munmap resumed>) = 0 [pid 6051] <... openat resumed>) = 3 [pid 6047] <... clone resumed>) = 6054 [pid 6045] exit(0 [pid 6044] +++ exited with 0 +++ [pid 6043] +++ exited with 0 +++ [pid 6045] <... exit resumed>) = ? [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6051] clone(child_stack=NULL, flags=0 [pid 6047] ptrace(PTRACE_ATTACH, 6054) = -1 EPERM (Operation not permitted) [pid 6045] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6052] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6049] <... clone resumed>) = 6055 ./strace-static-x86_64: Process 6056 attached [pid 6047] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6049] ptrace(PTRACE_ATTACH, 6055 [pid 6047] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6057 attached [pid 6052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6051] <... clone resumed>) = 6056 [pid 6049] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6047] +++ exited with 0 +++ [pid 6046] exit(0 [pid 6051] ptrace(PTRACE_ATTACH, 6056 [pid 6046] <... exit resumed>) = ? [pid 6057] set_robust_list(0x555566297660, 24 [pid 6052] close(3 [pid 6051] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6049] exit_group(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6047, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6057] <... set_robust_list resumed>) = 0 [pid 6049] <... exit_group resumed>) = ? [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6057 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 6051] exit_group(0 [pid 6046] +++ exited with 0 +++ [pid 5089] <... restart_syscall resumed>) = 0 [pid 6049] +++ exited with 0 +++ [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6051] <... exit_group resumed>) = ? [pid 6057] <... prctl resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6057] setpgid(0, 0 [pid 6051] +++ exited with 0 +++ [pid 6057] <... setpgid resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6051, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6052] <... close resumed>) = 0 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6049, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6057] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6057] write(3, "1000", 4) = 4 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] close(3) = 0 [pid 6057] memfd_create("syzkaller", 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6057] <... memfd_create resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6058 attached [pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6058 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6058] set_robust_list(0x555566297660, 24 [pid 6057] <... mmap resumed>) = 0x7f9e50600000 [pid 6058] <... set_robust_list resumed>) = 0 [pid 6052] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6060 [pid 6052] clone(child_stack=NULL, flags=0 [pid 6050] exit(0./strace-static-x86_64: Process 6059 attached ./strace-static-x86_64: Process 6060 attached [pid 6058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6050] <... exit resumed>) = ? [pid 6059] set_robust_list(0x555566297660, 24 [pid 6050] +++ exited with 0 +++ [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6059 [pid 6060] set_robust_list(0x555566297660, 24 [pid 6058] <... prctl resumed>) = 0 [pid 6059] <... set_robust_list resumed>) = 0 [pid 6060] <... set_robust_list resumed>) = 0 [pid 6058] setpgid(0, 0 [pid 6060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6058] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6061 attached [pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6052] <... clone resumed>) = 6061 [pid 6060] <... prctl resumed>) = 0 [pid 6058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6059] <... prctl resumed>) = 0 [pid 6060] setpgid(0, 0 [pid 6058] <... openat resumed>) = 3 [pid 6052] ptrace(PTRACE_ATTACH, 6061 [pid 6059] setpgid(0, 0 [pid 6060] <... setpgid resumed>) = 0 [pid 6058] write(3, "1000", 4 [pid 6052] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6058] <... write resumed>) = 4 [pid 6052] exit_group(0) = ? [pid 6052] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6052, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6062 attached [pid 6059] <... setpgid resumed>) = 0 [pid 6057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6058] close(3 [pid 6062] set_robust_list(0x555566297660, 24 [pid 6060] <... openat resumed>) = 3 [pid 6058] <... close resumed>) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6062 [pid 6062] <... set_robust_list resumed>) = 0 [pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6060] write(3, "1000", 4 [pid 6058] memfd_create("syzkaller", 0 [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6060] <... write resumed>) = 4 [pid 6058] <... memfd_create resumed>) = 3 [pid 6062] <... prctl resumed>) = 0 [pid 6060] close(3 [pid 6058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6062] setpgid(0, 0 [pid 6059] <... openat resumed>) = 3 [pid 6060] <... close resumed>) = 0 [pid 6058] <... mmap resumed>) = 0x7f9e50600000 [pid 6062] <... setpgid resumed>) = 0 [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6060] memfd_create("syzkaller", 0 [pid 6062] <... openat resumed>) = 3 [pid 6062] write(3, "1000", 4) = 4 [pid 6062] close(3 [pid 6059] write(3, "1000", 4 [pid 6060] <... memfd_create resumed>) = 3 [pid 6058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6057] <... write resumed>) = 1048576 [pid 6059] <... write resumed>) = 4 [pid 6060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6062] <... close resumed>) = 0 [pid 6059] close(3 [pid 6060] <... mmap resumed>) = 0x7f9e50600000 [pid 6057] munmap(0x7f9e50600000, 138412032) = 0 [pid 6062] memfd_create("syzkaller", 0) = 3 [pid 6062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6057] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6057] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] close(3 [pid 6059] <... close resumed>) = 0 [pid 6059] memfd_create("syzkaller", 0) = 3 [pid 6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6060] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6057] <... close resumed>) = 0 [pid 6062] <... write resumed>) = 1048576 [pid 6059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6060] <... write resumed>) = 1048576 [pid 6058] <... write resumed>) = 1048576 [pid 6057] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6062] munmap(0x7f9e50600000, 138412032 [pid 6060] munmap(0x7f9e50600000, 138412032 [pid 6058] munmap(0x7f9e50600000, 138412032 [pid 6057] <... openat resumed>) = 3 [pid 6053] exit(0 [pid 6058] <... munmap resumed>) = 0 [pid 6060] <... munmap resumed>) = 0 [pid 6057] clone(child_stack=NULL, flags=0 [pid 6053] <... exit resumed>) = ? [pid 6062] <... munmap resumed>) = 0 [pid 6053] +++ exited with 0 +++ [pid 6062] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6058] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6057] <... clone resumed>) = 6063 ./strace-static-x86_64: Process 6063 attached [pid 6062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6060] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] ptrace(PTRACE_ATTACH, 6063 [pid 6062] close(3 [pid 6060] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6058] close(3 [pid 6057] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6060] close(3 [pid 6059] <... write resumed>) = 1048576 [pid 6054] exit(0 [pid 6059] munmap(0x7f9e50600000, 138412032 [pid 6058] <... close resumed>) = 0 [pid 6057] exit_group(0 [pid 6055] exit(0 [pid 6054] <... exit resumed>) = ? [pid 6059] <... munmap resumed>) = 0 [pid 6060] <... close resumed>) = 0 [pid 6056] exit(0 [pid 6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6056] <... exit resumed>) = ? [pid 6059] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6056] +++ exited with 0 +++ [pid 6054] +++ exited with 0 +++ [pid 6057] <... exit_group resumed>) = ? [pid 6055] <... exit resumed>) = ? [pid 6059] close(3 [pid 6057] +++ exited with 0 +++ [pid 6055] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6062] <... close resumed>) = 0 [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6060] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6062] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6060] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6062] <... openat resumed>) = 3 [pid 6059] <... close resumed>) = 0 [pid 6062] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 6065 attached ./strace-static-x86_64: Process 6064 attached [pid 6060] clone(child_stack=NULL, flags=0 [pid 6058] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6064] set_robust_list(0x555566297660, 24 [pid 6058] <... openat resumed>) = 3 [pid 6064] <... set_robust_list resumed>) = 0 [pid 6059] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6058] clone(child_stack=NULL, flags=0 [pid 6064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6062] <... clone resumed>) = 6065 [pid 6064] <... prctl resumed>) = 0 [pid 6062] ptrace(PTRACE_ATTACH, 6065 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6064 [pid 6064] setpgid(0, 0 [pid 6062] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 6066 attached [pid 6064] <... setpgid resumed>) = 0 [pid 6062] exit_group(0 [pid 6059] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6067 attached [pid 6064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6062] <... exit_group resumed>) = ? [pid 6060] <... clone resumed>) = 6066 [pid 6064] <... openat resumed>) = 3 [pid 6062] +++ exited with 0 +++ [pid 6060] ptrace(PTRACE_ATTACH, 6066 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6064] write(3, "1000", 4 [pid 6060] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 6064] <... write resumed>) = 4 [pid 6060] exit_group(0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 6064] close(3) = 0 [pid 6060] <... exit_group resumed>) = ? [pid 6064] memfd_create("syzkaller", 0 [pid 6060] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6060, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6064] <... memfd_create resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6061] exit(0 [pid 6059] clone(child_stack=NULL, flags=0 [pid 6058] <... clone resumed>) = 6067 [pid 6064] <... mmap resumed>) = 0x7f9e50600000 [pid 6061] <... exit resumed>) = ? [pid 6058] ptrace(PTRACE_ATTACH, 6067 [pid 6061] +++ exited with 0 +++ [pid 6058] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 6068 attached [pid 6059] <... clone resumed>) = 6069 [pid 6058] exit_group(0./strace-static-x86_64: Process 6069 attached [pid 6059] ptrace(PTRACE_ATTACH, 6069 [pid 6058] <... exit_group resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6068 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6058] +++ exited with 0 +++ [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6068] set_robust_list(0x555566297660, 24 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6058, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6070 attached [pid 6070] set_robust_list(0x555566297660, 24 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6070 [pid 6070] <... set_robust_list resumed>) = 0 [pid 6070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6070] <... prctl resumed>) = 0 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6070] setpgid(0, 0) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6071 attached [pid 6070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6068] <... set_robust_list resumed>) = 0 [pid 6064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6059] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6059] exit_group(0 [pid 6068] setpgid(0, 0 [pid 6059] <... exit_group resumed>) = ? [pid 6070] <... openat resumed>) = 3 [pid 6068] <... setpgid resumed>) = 0 [pid 6070] write(3, "1000", 4) = 4 [pid 6070] close(3) = 0 [pid 6059] +++ exited with 0 +++ [pid 6071] set_robust_list(0x555566297660, 24 [pid 6070] memfd_create("syzkaller", 0 [pid 6068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6071 [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6070] <... memfd_create resumed>) = 3 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 6071] <... set_robust_list resumed>) = 0 [pid 6070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6068] <... openat resumed>) = 3 [pid 5087] <... restart_syscall resumed>) = 0 [pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6068] write(3, "1000", 4 [pid 6071] <... prctl resumed>) = 0 [pid 6070] <... mmap resumed>) = 0x7f9e50600000 [pid 6068] <... write resumed>) = 4 [pid 6071] setpgid(0, 0 [pid 6068] close(3 [pid 6071] <... setpgid resumed>) = 0 [pid 6068] <... close resumed>) = 0 [pid 6064] <... write resumed>) = 1048576 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6068] memfd_create("syzkaller", 0) = 3 [pid 6068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6068] <... mmap resumed>) = 0x7f9e50600000 [pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6071] <... openat resumed>) = 3 [pid 6070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6072 ./strace-static-x86_64: Process 6072 attached [pid 6071] write(3, "1000", 4 [pid 6072] set_robust_list(0x555566297660, 24 [pid 6071] <... write resumed>) = 4 [pid 6070] <... write resumed>) = 1048576 [pid 6064] munmap(0x7f9e50600000, 138412032 [pid 6072] <... set_robust_list resumed>) = 0 [pid 6071] close(3 [pid 6068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6064] <... munmap resumed>) = 0 [pid 6071] <... close resumed>) = 0 [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6064] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6072] <... prctl resumed>) = 0 [pid 6071] memfd_create("syzkaller", 0 [pid 6064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6064] close(3 [pid 6071] <... memfd_create resumed>) = 3 [pid 6072] setpgid(0, 0) = 0 [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6071] <... mmap resumed>) = 0x7f9e50600000 [pid 6072] <... openat resumed>) = 3 [pid 6064] <... close resumed>) = 0 [pid 6070] munmap(0x7f9e50600000, 138412032 [pid 6064] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6072] write(3, "1000", 4 [pid 6071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6070] <... munmap resumed>) = 0 [pid 6072] <... write resumed>) = 4 [pid 6070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6064] <... openat resumed>) = 3 [pid 6072] close(3 [pid 6070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6072] <... close resumed>) = 0 [pid 6070] close(3 [pid 6064] clone(child_stack=NULL, flags=0 [pid 6072] memfd_create("syzkaller", 0) = 3 [pid 6068] <... write resumed>) = 1048576 [pid 6072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6063] exit(0 [pid 6072] <... mmap resumed>) = 0x7f9e50600000 [pid 6063] <... exit resumed>) = ? [pid 6064] <... clone resumed>) = 6073 [pid 6063] +++ exited with 0 +++ [pid 6064] ptrace(PTRACE_ATTACH, 6073./strace-static-x86_64: Process 6073 attached ) = -1 EPERM (Operation not permitted) [pid 6064] exit_group(0) = ? [pid 6070] <... close resumed>) = 0 [pid 6064] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6064, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6070] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6070] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6071] <... write resumed>) = 1048576 [pid 6070] clone(child_stack=NULL, flags=0 [pid 6068] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 6074 attached [pid 6074] set_robust_list(0x555566297660, 24 [pid 6068] <... munmap resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6074 [pid 6074] <... set_robust_list resumed>) = 0 [pid 6074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6074] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6075 attached [pid 6074] setpgid(0, 0) = 0 [pid 6070] <... clone resumed>) = 6075 [pid 6074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6070] ptrace(PTRACE_ATTACH, 6075) = -1 EPERM (Operation not permitted) [pid 6074] <... openat resumed>) = 3 [pid 6070] exit_group(0 [pid 6068] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6074] write(3, "1000", 4 [pid 6070] <... exit_group resumed>) = ? [pid 6074] <... write resumed>) = 4 [pid 6074] close(3) = 0 [pid 6072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6068] close(3 [pid 6074] memfd_create("syzkaller", 0 [pid 6070] +++ exited with 0 +++ [pid 6074] <... memfd_create resumed>) = 3 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 6074] <... mmap resumed>) = 0x7f9e50600000 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6065] exit(0 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6065] <... exit resumed>) = ? ./strace-static-x86_64: Process 6076 attached [pid 6066] exit(0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6076 [pid 6065] +++ exited with 0 +++ [pid 6076] set_robust_list(0x555566297660, 24 [pid 6066] <... exit resumed>) = ? [pid 6076] <... set_robust_list resumed>) = 0 [pid 6068] <... close resumed>) = 0 [pid 6066] +++ exited with 0 +++ [pid 6076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6071] munmap(0x7f9e50600000, 138412032 [pid 6076] <... prctl resumed>) = 0 [pid 6071] <... munmap resumed>) = 0 [pid 6068] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6076] setpgid(0, 0) = 0 [pid 6076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6067] exit(0 [pid 6076] <... openat resumed>) = 3 [pid 6071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6068] <... openat resumed>) = 3 [pid 6067] <... exit resumed>) = ? [pid 6076] write(3, "1000", 4 [pid 6074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6067] +++ exited with 0 +++ [pid 6076] <... write resumed>) = 4 [pid 6071] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6068] clone(child_stack=NULL, flags=0 [pid 6071] close(3 [pid 6076] close(3) = 0 [pid 6076] memfd_create("syzkaller", 0) = 3 [pid 6076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6071] <... close resumed>) = 0 [pid 6069] exit(0) = ? [pid 6074] <... write resumed>) = 1048576 [pid 6069] +++ exited with 0 +++ ./strace-static-x86_64: Process 6077 attached [pid 6068] <... clone resumed>) = 6077 [pid 6076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6072] <... write resumed>) = 1048576 [pid 6071] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6068] ptrace(PTRACE_ATTACH, 6077) = -1 EPERM (Operation not permitted) [pid 6074] munmap(0x7f9e50600000, 138412032 [pid 6071] <... openat resumed>) = 3 [pid 6072] munmap(0x7f9e50600000, 138412032 [pid 6071] clone(child_stack=NULL, flags=0 [pid 6068] exit_group(0) = ? ./strace-static-x86_64: Process 6078 attached [pid 6074] <... munmap resumed>) = 0 [pid 6068] +++ exited with 0 +++ [pid 6074] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6072] <... munmap resumed>) = 0 [pid 6071] <... clone resumed>) = 6078 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6068, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6074] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 6074] close(3 [pid 5090] <... restart_syscall resumed>) = 0 [pid 6074] <... close resumed>) = 0 [pid 6072] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6071] ptrace(PTRACE_ATTACH, 6078 [pid 6072] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6071] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6071] exit_group(0) = ? [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6071] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6071, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6072] close(3 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6079 attached [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6079 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6080 ./strace-static-x86_64: Process 6080 attached [pid 6079] set_robust_list(0x555566297660, 24 [pid 6080] set_robust_list(0x555566297660, 24 [pid 6079] <... set_robust_list resumed>) = 0 [pid 6074] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6076] <... write resumed>) = 1048576 [pid 6074] <... openat resumed>) = 3 [pid 6074] clone(child_stack=NULL, flags=0 [pid 6076] munmap(0x7f9e50600000, 138412032 [pid 6080] <... set_robust_list resumed>) = 0 [pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6076] <... munmap resumed>) = 0 [pid 6072] <... close resumed>) = 0 [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6079] <... prctl resumed>) = 0 [pid 6072] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 6081 attached [pid 6076] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6079] setpgid(0, 0 [pid 6080] <... prctl resumed>) = 0 [pid 6076] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6074] <... clone resumed>) = 6081 [pid 6072] <... openat resumed>) = 3 [pid 6080] setpgid(0, 0 [pid 6079] <... setpgid resumed>) = 0 [pid 6074] ptrace(PTRACE_ATTACH, 6081 [pid 6072] clone(child_stack=NULL, flags=0 [pid 6076] close(3 [pid 6074] <... ptrace resumed>) = -1 EPERM (Operation not permitted) ./strace-static-x86_64: Process 6082 attached [pid 6080] <... setpgid resumed>) = 0 [pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6074] exit_group(0 [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6072] <... clone resumed>) = 6082 [pid 6079] <... openat resumed>) = 3 [pid 6079] write(3, "1000", 4 [pid 6072] ptrace(PTRACE_ATTACH, 6082) = -1 EPERM (Operation not permitted) [pid 6079] <... write resumed>) = 4 [pid 6074] <... exit_group resumed>) = ? [pid 6080] <... openat resumed>) = 3 [pid 6079] close(3 [pid 6074] +++ exited with 0 +++ [pid 6072] exit_group(0 [pid 6079] <... close resumed>) = 0 [pid 6072] <... exit_group resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6074, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6079] memfd_create("syzkaller", 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6079] <... memfd_create resumed>) = 3 [pid 6072] +++ exited with 0 +++ [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6072, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 6083 attached [pid 6080] write(3, "1000", 4 [pid 6079] <... mmap resumed>) = 0x7f9e50600000 [pid 6076] <... close resumed>) = 0 [pid 5087] restart_syscall(<... resuming interrupted clone ...> [pid 6080] <... write resumed>) = 4 [pid 6083] set_robust_list(0x555566297660, 24 [pid 5087] <... restart_syscall resumed>) = 0 [pid 6083] <... set_robust_list resumed>) = 0 [pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6083] setpgid(0, 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6083] <... setpgid resumed>) = 0 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6076] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6083 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6083] <... openat resumed>) = 3 [pid 6080] close(3 [pid 6079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6076] <... openat resumed>) = 3 [pid 6080] <... close resumed>) = 0 [pid 6073] exit(0) = ? ./strace-static-x86_64: Process 6084 attached [pid 6073] +++ exited with 0 +++ [pid 6084] set_robust_list(0x555566297660, 24 [pid 6083] write(3, "1000", 4 [pid 6080] memfd_create("syzkaller", 0 [pid 6076] clone(child_stack=NULL, flags=0 [pid 6084] <... set_robust_list resumed>) = 0 [pid 6083] <... write resumed>) = 4 [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6083] close(3 [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6084 [pid 6084] setpgid(0, 0 [pid 6083] <... close resumed>) = 0 [pid 6083] memfd_create("syzkaller", 0 [pid 6084] <... setpgid resumed>) = 0 [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6083] <... memfd_create resumed>) = 3 [pid 6080] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 6085 attached [pid 6084] <... openat resumed>) = 3 [pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6076] <... clone resumed>) = 6085 [pid 6083] <... mmap resumed>) = 0x7f9e50600000 [pid 6080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6076] ptrace(PTRACE_ATTACH, 6085 [pid 6084] write(3, "1000", 4 [pid 6080] <... mmap resumed>) = 0x7f9e50600000 [pid 6084] <... write resumed>) = 4 [pid 6076] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6076] exit_group(0) = ? [pid 6076] +++ exited with 0 +++ [pid 6084] close(3) = 0 [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6076, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6084] memfd_create("syzkaller", 0 [pid 6075] exit(0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6075] <... exit resumed>) = ? ./strace-static-x86_64: Process 6086 attached [pid 6075] +++ exited with 0 +++ [pid 6086] set_robust_list(0x555566297660, 24) = 0 [pid 6086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6084] <... memfd_create resumed>) = 3 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6086 [pid 6084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6086] <... prctl resumed>) = 0 [pid 6084] <... mmap resumed>) = 0x7f9e50600000 [pid 6086] setpgid(0, 0 [pid 6084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6086] <... setpgid resumed>) = 0 [pid 6083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6079] <... write resumed>) = 1048576 [pid 6086] <... openat resumed>) = 3 [pid 6086] write(3, "1000", 4) = 4 [pid 6079] munmap(0x7f9e50600000, 138412032 [pid 6086] close(3) = 0 [pid 6086] memfd_create("syzkaller", 0 [pid 6079] <... munmap resumed>) = 0 [pid 6086] <... memfd_create resumed>) = 3 [pid 6086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6079] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6079] close(3 [pid 6083] <... write resumed>) = 1048576 [pid 6080] <... write resumed>) = 1048576 [pid 6084] <... write resumed>) = 1048576 [pid 6080] munmap(0x7f9e50600000, 138412032 [pid 6079] <... close resumed>) = 0 [pid 6079] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6077] exit(0) = ? [pid 6086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6083] munmap(0x7f9e50600000, 138412032) = 0 [pid 6080] <... munmap resumed>) = 0 [pid 6079] <... openat resumed>) = 3 [pid 6077] +++ exited with 0 +++ [pid 6078] exit(0) = ? [pid 6080] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6079] clone(child_stack=NULL, flags=0 [pid 6078] +++ exited with 0 +++ [pid 6080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6084] munmap(0x7f9e50600000, 138412032 [pid 6080] close(3 [pid 6084] <... munmap resumed>) = 0 [pid 6083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6084] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6083] close(3./strace-static-x86_64: Process 6087 attached ) = 0 [pid 6080] <... close resumed>) = 0 [pid 6084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6079] <... clone resumed>) = 6087 [pid 6084] close(3 [pid 6079] ptrace(PTRACE_ATTACH, 6087) = -1 EPERM (Operation not permitted) [pid 6086] <... write resumed>) = 1048576 [pid 6084] <... close resumed>) = 0 [pid 6079] exit_group(0 [pid 6080] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6079] <... exit_group resumed>) = ? [pid 6080] <... openat resumed>) = 3 [pid 6086] munmap(0x7f9e50600000, 138412032 [pid 6083] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6086] <... munmap resumed>) = 0 [pid 6083] <... openat resumed>) = 3 [pid 6080] clone(child_stack=NULL, flags=0 [pid 6079] +++ exited with 0 +++ [pid 6083] clone(child_stack=NULL, flags=0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6079, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 6089 attached ./strace-static-x86_64: Process 6088 attached [pid 6080] <... clone resumed>) = 6088 [pid 6083] <... clone resumed>) = 6089 [pid 6080] ptrace(PTRACE_ATTACH, 6088 [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6083] ptrace(PTRACE_ATTACH, 6089 [pid 6080] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6083] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6080] exit_group(0./strace-static-x86_64: Process 6090 attached [pid 6086] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6083] exit_group(0 [pid 6080] <... exit_group resumed>) = ? [pid 6090] set_robust_list(0x555566297660, 24 [pid 6086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6083] <... exit_group resumed>) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6090 [pid 6090] <... set_robust_list resumed>) = 0 [pid 6086] close(3 [pid 6084] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6083] +++ exited with 0 +++ [pid 6081] exit(0 [pid 6080] +++ exited with 0 +++ [pid 6090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6086] <... close resumed>) = 0 [pid 6084] <... openat resumed>) = 3 [pid 6081] <... exit resumed>) = ? [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6083, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6090] <... prctl resumed>) = 0 [pid 6082] exit(0 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5093] <... restart_syscall resumed>) = 0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 6090] setpgid(0, 0 [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6090] <... setpgid resumed>) = 0 [pid 6082] <... exit resumed>) = ? [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6090] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6092 attached ./strace-static-x86_64: Process 6091 attached [pid 6090] write(3, "1000", 4 [pid 6081] +++ exited with 0 +++ [pid 6092] set_robust_list(0x555566297660, 24 [pid 6091] set_robust_list(0x555566297660, 24 [pid 6090] <... write resumed>) = 4 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6092 [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6091 [pid 6092] <... set_robust_list resumed>) = 0 [pid 6091] <... set_robust_list resumed>) = 0 [pid 6090] close(3 [pid 6084] clone(child_stack=NULL, flags=0 [pid 6082] +++ exited with 0 +++ ./strace-static-x86_64: Process 6093 attached [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6090] <... close resumed>) = 0 [pid 6086] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6092] <... prctl resumed>) = 0 [pid 6091] <... prctl resumed>) = 0 [pid 6090] memfd_create("syzkaller", 0 [pid 6092] setpgid(0, 0 [pid 6091] setpgid(0, 0 [pid 6090] <... memfd_create resumed>) = 3 [pid 6086] <... openat resumed>) = 3 [pid 6090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6092] <... setpgid resumed>) = 0 [pid 6091] <... setpgid resumed>) = 0 [pid 6090] <... mmap resumed>) = 0x7f9e50600000 [pid 6086] clone(child_stack=NULL, flags=0 [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6084] <... clone resumed>) = 6093 [pid 6092] <... openat resumed>) = 3 [pid 6091] <... openat resumed>) = 3 [pid 6092] write(3, "1000", 4 [pid 6091] write(3, "1000", 4./strace-static-x86_64: Process 6094 attached [pid 6085] exit(0 [pid 6092] <... write resumed>) = 4 [pid 6091] <... write resumed>) = 4 [pid 6085] <... exit resumed>) = ? [pid 6092] close(3 [pid 6091] close(3 [pid 6092] <... close resumed>) = 0 [pid 6091] <... close resumed>) = 0 [pid 6092] memfd_create("syzkaller", 0 [pid 6091] memfd_create("syzkaller", 0 [pid 6085] +++ exited with 0 +++ [pid 6092] <... memfd_create resumed>) = 3 [pid 6091] <... memfd_create resumed>) = 3 [pid 6092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6086] <... clone resumed>) = 6094 [pid 6084] ptrace(PTRACE_ATTACH, 6093 [pid 6092] <... mmap resumed>) = 0x7f9e50600000 [pid 6091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6086] ptrace(PTRACE_ATTACH, 6094 [pid 6084] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6091] <... mmap resumed>) = 0x7f9e50600000 [pid 6084] exit_group(0 [pid 6086] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6090] <... write resumed>) = 1048576 [pid 6086] exit_group(0) = ? [pid 6091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6086] +++ exited with 0 +++ [pid 6084] <... exit_group resumed>) = ? [pid 6084] +++ exited with 0 +++ [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6084, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6086, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 6095 attached ) = -1 EBUSY (Device or resource busy) [pid 6095] set_robust_list(0x555566297660, 24 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6095] <... set_robust_list resumed>) = 0 [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6095 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6096 [pid 6095] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6096 attached [pid 6096] set_robust_list(0x555566297660, 24 [pid 6095] setpgid(0, 0 [pid 6096] <... set_robust_list resumed>) = 0 [pid 6095] <... setpgid resumed>) = 0 [pid 6096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] <... prctl resumed>) = 0 [pid 6096] setpgid(0, 0 [pid 6095] <... openat resumed>) = 3 [pid 6096] <... setpgid resumed>) = 0 [pid 6095] write(3, "1000", 4 [pid 6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6095] <... write resumed>) = 4 [pid 6096] <... openat resumed>) = 3 [pid 6095] close(3 [pid 6090] munmap(0x7f9e50600000, 138412032 [pid 6096] write(3, "1000", 4 [pid 6095] <... close resumed>) = 0 [pid 6096] <... write resumed>) = 4 [pid 6096] close(3 [pid 6095] memfd_create("syzkaller", 0 [pid 6090] <... munmap resumed>) = 0 [pid 6096] <... close resumed>) = 0 [pid 6095] <... memfd_create resumed>) = 3 [pid 6096] memfd_create("syzkaller", 0 [pid 6095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6090] close(3 [pid 6095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6096] <... memfd_create resumed>) = 3 [pid 6091] <... write resumed>) = 1048576 [pid 6091] munmap(0x7f9e50600000, 138412032) = 0 [pid 6096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6092] <... write resumed>) = 1048576 [pid 6096] <... mmap resumed>) = 0x7f9e50600000 [pid 6092] munmap(0x7f9e50600000, 138412032 [pid 6091] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6092] <... munmap resumed>) = 0 [pid 6091] close(3 [pid 6090] <... close resumed>) = 0 [pid 6087] exit(0) = ? [pid 6090] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 6090] clone(child_stack=NULL, flags=0 [pid 6087] +++ exited with 0 +++ [pid 6092] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6092] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 6097 attached [pid 6090] <... clone resumed>) = 6097 [pid 6090] ptrace(PTRACE_ATTACH, 6097 [pid 6092] close(3 [pid 6090] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6090] exit_group(0 [pid 6091] <... close resumed>) = 0 [pid 6090] <... exit_group resumed>) = ? [pid 6091] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6092] <... close resumed>) = 0 [pid 6091] <... openat resumed>) = 3 [pid 6091] clone(child_stack=NULL, flags=0 [pid 6090] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6090, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6098 attached [pid 6095] <... write resumed>) = 1048576 [pid 6092] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6088] exit(0 [pid 5090] <... restart_syscall resumed>) = 0 [pid 6095] munmap(0x7f9e50600000, 138412032 [pid 6092] <... openat resumed>) = 3 [pid 6091] <... clone resumed>) = 6098 [pid 6089] exit(0 [pid 6088] <... exit resumed>) = ? [pid 6096] <... write resumed>) = 1048576 [pid 6095] <... munmap resumed>) = 0 [pid 6092] clone(child_stack=NULL, flags=0 [pid 6091] ptrace(PTRACE_ATTACH, 6098 [pid 6089] <... exit resumed>) = ? [pid 6088] +++ exited with 0 +++ [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6089] +++ exited with 0 +++ [pid 6091] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6091] exit_group(0) = ? [pid 5090] <... clone resumed>, child_tidptr=0x555566297650) = 6099 [pid 6096] munmap(0x7f9e50600000, 138412032./strace-static-x86_64: Process 6099 attached [pid 6095] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6091] +++ exited with 0 +++ [pid 6099] set_robust_list(0x555566297660, 24 [pid 6096] <... munmap resumed>) = 0 [pid 6095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6093] exit(0./strace-static-x86_64: Process 6100 attached [pid 6099] <... set_robust_list resumed>) = 0 [pid 6096] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6095] close(3 [pid 6093] <... exit resumed>) = ? [pid 6092] <... clone resumed>) = 6100 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6095] <... close resumed>) = 0 [pid 6092] ptrace(PTRACE_ATTACH, 6100 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 6096] close(3 [pid 6093] +++ exited with 0 +++ [pid 6099] <... prctl resumed>) = 0 [pid 6099] setpgid(0, 0 [pid 6096] <... close resumed>) = 0 [pid 6094] exit(0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 6099] <... setpgid resumed>) = 0 [pid 6094] <... exit resumed>) = ? [pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6092] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6099] <... openat resumed>) = 3 [pid 6094] +++ exited with 0 +++ [pid 6092] exit_group(0 [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6099] write(3, "1000", 4) = 4 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6099] close(3) = 0 [pid 6092] <... exit_group resumed>) = ? [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6099] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 6101 attached [pid 6099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6101] set_robust_list(0x555566297660, 24 [pid 6099] <... mmap resumed>) = 0x7f9e50600000 [pid 6092] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555566297650) = 6101 [pid 6101] <... set_robust_list resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6092, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6101] <... prctl resumed>) = 0 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6095] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6096] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6095] <... openat resumed>) = 3 [pid 5093] <... clone resumed>, child_tidptr=0x555566297650) = 6102 [pid 6096] <... openat resumed>) = 3 [pid 6095] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 6102 attached [pid 6101] setpgid(0, 0 [pid 6102] set_robust_list(0x555566297660, 24 [pid 6101] <... setpgid resumed>) = 0 [pid 6099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6102] <... set_robust_list resumed>) = 0 [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] clone(child_stack=NULL, flags=0 [pid 6102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6101] <... openat resumed>) = 3 [pid 6101] write(3, "1000", 4 [pid 6102] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6103 attached [pid 6101] <... write resumed>) = 4 [pid 6095] <... clone resumed>) = 6103 [pid 6102] setpgid(0, 0 [pid 6101] close(3 [pid 6095] ptrace(PTRACE_ATTACH, 6103./strace-static-x86_64: Process 6104 attached [pid 6102] <... setpgid resumed>) = 0 [pid 6101] <... close resumed>) = 0 [pid 6095] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6101] memfd_create("syzkaller", 0 [pid 6096] <... clone resumed>) = 6104 [pid 6095] exit_group(0 [pid 6101] <... memfd_create resumed>) = 3 [pid 6096] ptrace(PTRACE_ATTACH, 6104 [pid 6102] <... openat resumed>) = 3 [pid 6101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6096] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6095] <... exit_group resumed>) = ? [pid 6102] write(3, "1000", 4 [pid 6101] <... mmap resumed>) = 0x7f9e50600000 [pid 6102] <... write resumed>) = 4 [pid 6096] exit_group(0 [pid 6095] +++ exited with 0 +++ [pid 6096] <... exit_group resumed>) = ? [pid 5087] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6096] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6096, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6105 attached [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6105] set_robust_list(0x555566297660, 24 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6105] <... set_robust_list resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] <... clone resumed>, child_tidptr=0x555566297650) = 6105 [pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6102] close(3./strace-static-x86_64: Process 6106 attached [pid 6105] <... prctl resumed>) = 0 [pid 6106] set_robust_list(0x555566297660, 24 [pid 6105] setpgid(0, 0 [pid 6106] <... set_robust_list resumed>) = 0 [pid 6105] <... setpgid resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555566297650) = 6106 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6106] <... prctl resumed>) = 0 [pid 6106] setpgid(0, 0 [pid 6105] <... openat resumed>) = 3 [pid 6102] <... close resumed>) = 0 [pid 6101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6106] <... setpgid resumed>) = 0 [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6105] write(3, "1000", 4) = 4 [pid 6106] <... openat resumed>) = 3 [pid 6105] close(3 [pid 6102] memfd_create("syzkaller", 0 [pid 6099] <... write resumed>) = 1048576 [pid 6105] <... close resumed>) = 0 [pid 6106] write(3, "1000", 4 [pid 6105] memfd_create("syzkaller", 0 [pid 6102] <... memfd_create resumed>) = 3 [pid 6106] <... write resumed>) = 4 [pid 6099] munmap(0x7f9e50600000, 138412032 [pid 6106] close(3 [pid 6105] <... memfd_create resumed>) = 3 [pid 6106] <... close resumed>) = 0 [pid 6105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6106] memfd_create("syzkaller", 0 [pid 6105] <... mmap resumed>) = 0x7f9e50600000 [pid 6099] <... munmap resumed>) = 0 [pid 6102] <... mmap resumed>) = 0x7f9e50600000 [pid 6105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6099] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6106] <... memfd_create resumed>) = 3 [pid 6106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e50600000 [pid 6106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6105] <... write resumed>) = 1048576 [pid 6102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6105] munmap(0x7f9e50600000, 138412032) = 0 [pid 6099] close(3 [pid 6105] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6097] exit(0 [pid 6105] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6097] <... exit resumed>) = ? [ 77.967694][ T35] ================================================================== [ 77.975811][ T35] BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x78/0x1fd0 [ 77.983844][ T35] Read of size 8 at addr ffff888020485fa8 by task kworker/u8:2/35 [ 77.992124][ T35] [ 77.994553][ T35] CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.9.0-rc2-next-20240402-syzkaller #0 [ 78.005336][ T35] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [pid 6105] close(3 [pid 6097] +++ exited with 0 +++ [pid 6106] <... write resumed>) = 1048576 [pid 6102] <... write resumed>) = 1048576 [pid 6101] <... write resumed>) = 1048576 [pid 6099] <... close resumed>) = 0 [pid 6106] munmap(0x7f9e50600000, 138412032 [pid 6103] exit(0 [pid 6102] munmap(0x7f9e50600000, 138412032 [pid 6101] munmap(0x7f9e50600000, 138412032 [pid 6100] exit(0 [pid 6103] <... exit resumed>) = ? [pid 6101] <... munmap resumed>) = 0 [ 78.015770][ T35] Workqueue: writeback wb_workfn (flush-7:1) [ 78.021886][ T35] Call Trace: [ 78.025429][ T35] [ 78.028374][ T35] dump_stack_lvl+0x241/0x360 [ 78.033265][ T35] ? __pfx_dump_stack_lvl+0x10/0x10 [ 78.038857][ T35] ? __pfx__printk+0x10/0x10 [ 78.043558][ T35] ? _printk+0xd5/0x120 [ 78.047744][ T35] ? __virt_addr_valid+0x183/0x520 [ 78.053045][ T35] ? __virt_addr_valid+0x183/0x520 [ 78.058267][ T35] print_report+0x169/0x550 [pid 6100] <... exit resumed>) = ? [pid 6103] +++ exited with 0 +++ [pid 6102] <... munmap resumed>) = 0 [pid 6101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6100] +++ exited with 0 +++ [pid 6106] <... munmap resumed>) = 0 [pid 6101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6101] close(3) = 0 [pid 6099] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6102] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6101] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6099] <... openat resumed>) = 3 [pid 6106] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6102] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6101] <... openat resumed>) = 3 [pid 6101] clone(child_stack=NULL, flags=0) = 6107 [pid 6106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6101] ptrace(PTRACE_ATTACH, 6107 [pid 6106] close(3 [pid 6102] close(3 [pid 6101] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6099] clone(child_stack=NULL, flags=0 [pid 6101] exit_group(0) = ? [pid 6101] +++ exited with 0 +++ ./strace-static-x86_64: Process 6108 attached [pid 6099] <... clone resumed>) = 6108 [pid 6099] ptrace(PTRACE_ATTACH, 6108) = -1 EPERM (Operation not permitted) [pid 6099] exit_group(0) = ? [pid 6099] +++ exited with 0 +++ [pid 6106] <... close resumed>) = 0 [pid 6106] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 6106] clone(child_stack=NULL, flags=0 [pid 6102] <... close resumed>) = 0 ./strace-static-x86_64: Process 6109 attached [ 78.062937][ T35] ? __virt_addr_valid+0x183/0x520 [ 78.068922][ T35] ? __virt_addr_valid+0x183/0x520 [ 78.074331][ T35] ? __virt_addr_valid+0x44e/0x520 [ 78.079650][ T35] ? __phys_addr+0xba/0x170 [ 78.084394][ T35] ? __lock_acquire+0x78/0x1fd0 [ 78.089364][ T35] kasan_report+0x143/0x180 [ 78.094157][ T35] ? __lock_acquire+0x78/0x1fd0 [ 78.099137][ T35] __lock_acquire+0x78/0x1fd0 [ 78.103928][ T35] ? __pfx_reacquire_held_locks+0x10/0x10 [ 78.109816][ T35] lock_acquire+0x1ed/0x550 [pid 6102] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 6107 attached [pid 6106] <... clone resumed>) = 6109 [pid 6105] <... close resumed>) = 0 [pid 6102] <... openat resumed>) = 3 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6099, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6106] ptrace(PTRACE_ATTACH, 6109 [pid 6105] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6102] clone(child_stack=NULL, flags=0 [pid 6106] <... ptrace resumed>) = -1 EPERM (Operation not permitted) [pid 6105] <... openat resumed>) = 3 [ 78.114356][ T35] ? wb_writeback+0x66f/0xd30 [ 78.119032][ T35] ? __pfx_lock_acquire+0x10/0x10 [ 78.124170][ T35] ? __pfx___up_read+0x10/0x10 [ 78.127775][ T2462] INFO: trying to register non-static key. [ 78.129027][ T35] ? do_raw_spin_lock+0x14f/0x370 [ 78.134839][ T2462] The code is fine but needs lockdep annotation, or maybe [ 78.140104][ T35] _raw_spin_lock+0x2e/0x40 [ 78.147698][ T2462] you didn't initialize this object before use? [ 78.152260][ T35] ? wb_writeback+0x66f/0xd30 [ 78.158902][ T2462] turning off the locking correctness validator. [ 78.170628][ T35] wb_writeback+0x66f/0xd30 [ 78.175326][ T35] ? __pfx_wb_writeback+0x10/0x10 [ 78.180345][ T35] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 78.186588][ T35] wb_workfn+0xba1/0x1090 [ 78.193008][ T35] ? __pfx_wb_workfn+0x10/0x10 [ 78.198071][ T35] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 78.204062][ T35] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 78.211035][ T35] ? process_scheduled_works+0x945/0x1830 [ 78.216857][ T35] process_scheduled_works+0xa2c/0x1830 [ 78.222426][ T35] ? __pfx_process_scheduled_works+0x10/0x10 [ 78.228442][ T35] ? assign_work+0x364/0x3d0 [ 78.233218][ T35] worker_thread+0x86d/0xd70 [ 78.237899][ T35] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 78.243826][ T35] ? __kthread_parkme+0x169/0x1d0 [ 78.248856][ T35] ? __pfx_worker_thread+0x10/0x10 [ 78.254415][ T35] kthread+0x2f0/0x390 [ 78.258771][ T35] ? __pfx_worker_thread+0x10/0x10 [ 78.264082][ T35] ? __pfx_kthread+0x10/0x10 [ 78.269423][ T35] ret_from_fork+0x4b/0x80 [ 78.274064][ T35] ? __pfx_kthread+0x10/0x10 [ 78.278745][ T35] ret_from_fork_asm+0x1a/0x30 [ 78.283738][ T35] [ 78.286834][ T35] [ 78.286837][ T2462] CPU: 1 PID: 2462 Comm: kworker/u8:8 Not tainted 6.9.0-rc2-next-20240402-syzkaller #0 [ 78.289139][ T35] Allocated by task 5052: [ 78.300139][ T2462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 78.304548][ T35] kasan_save_track+0x3f/0x80 [ 78.314686][ T2462] Workqueue: writeback wb_workfn [ 78.319420][ T35] __kasan_kmalloc+0x98/0xb0 [ 78.319446][ T35] __kmalloc_noprof+0x200/0x410 [ 78.324348][ T2462] (flush-7:4) [ 78.329254][ T35] tomoyo_realpath_from_path+0xcf/0x5e0 [ 78.334250][ T2462] [ 78.334258][ T2462] Call Trace: [ 78.337626][ T35] tomoyo_path_perm+0x2b7/0x740 [ 78.343148][ T2462] [ 78.345445][ T35] security_inode_getattr+0xd8/0x130 [ 78.348978][ T2462] dump_stack_lvl+0x241/0x360 [ 78.353923][ T35] vfs_getattr+0x45/0x430 [ 78.357199][ T2462] ? __pfx_dump_stack_lvl+0x10/0x10 [ 78.362643][ T35] vfs_fstatat+0xd6/0x190 [ 78.367395][ T2462] ? __pfx__printk+0x10/0x10 [ 78.372301][ T35] __x64_sys_newfstatat+0x125/0x1b0 [ 78.377564][ T2462] ? __is_module_percpu_address+0x3a8/0x420 [ 78.382211][ T35] do_syscall_64+0xfb/0x240 [ 78.386777][ T2462] ? __module_address+0x32/0x500 [ 78.392120][ T35] entry_SYSCALL_64_after_hwframe+0x72/0x7a [ 78.398425][ T2462] assign_lock_key+0x238/0x270 [ 78.403166][ T35] [ 78.403172][ T35] Freed by task 5052: [ 78.408075][ T2462] ? __pfx_assign_lock_key+0x10/0x10 [ 78.414044][ T35] kasan_save_track+0x3f/0x80 [ 78.418811][ T2462] ? __lock_acquire+0x1346/0x1fd0 [ 78.421292][ T35] kasan_save_free_info+0x40/0x50 [ 78.425253][ T2462] register_lock_class+0x1cf/0x980 [ 78.430765][ T35] poison_slab_object+0xe0/0x150 [ 78.435654][ T2462] ? __pfx_register_lock_class+0x10/0x10 [ 78.441169][ T35] __kasan_slab_free+0x37/0x60 [ 78.446285][ T2462] ? mark_lock+0x9a/0x350 [ 78.451904][ T35] kfree+0x149/0x350 [ 78.457082][ T2462] __lock_acquire+0xda/0x1fd0 [ 78.463046][ T35] tomoyo_realpath_from_path+0x5a9/0x5e0 [ 78.467806][ T2462] ? __pfx_reacquire_held_locks+0x10/0x10 [ 78.472376][ T35] tomoyo_path_perm+0x2b7/0x740 [ 78.476348][ T2462] lock_acquire+0x1ed/0x550 [ 78.480993][ T35] security_inode_getattr+0xd8/0x130 [ 78.487676][ T2462] ? wb_writeback+0x66f/0xd30 [ 78.493994][ T35] vfs_getattr+0x45/0x430 [ 78.500249][ T2462] ? __pfx_lock_acquire+0x10/0x10 [ 78.504934][ T35] vfs_fstatat+0xd6/0x190 [ 78.510390][ T2462] ? __pfx___up_read+0x10/0x10 [ 78.515075][ T35] __x64_sys_newfstatat+0x125/0x1b0 [ 78.519498][ T2462] ? do_raw_spin_lock+0x14f/0x370 [ 78.524585][ T35] do_syscall_64+0xfb/0x240 [ 78.528899][ T2462] _raw_spin_lock+0x2e/0x40 [ 78.533713][ T35] entry_SYSCALL_64_after_hwframe+0x72/0x7a [ 78.538986][ T2462] ? wb_writeback+0x66f/0xd30 [ 78.544006][ T35] [ 78.544019][ T35] The buggy address belongs to the object at ffff888020484000 [ 78.544019][ T35] which belongs to the cache kmalloc-4k of size 4096 [ 78.548588][ T2462] wb_writeback+0x66f/0xd30 [ 78.553239][ T35] The buggy address is located 4008 bytes to the right of [ 78.553239][ T35] allocated 4096-byte region [ffff888020484000, ffff888020485000) [ 78.559238][ T2462] ? __pfx_wb_writeback+0x10/0x10 [ 78.564281][ T35] [ 78.564296][ T35] The buggy address belongs to the physical page: [ 78.566779][ T2462] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 78.581081][ T35] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20480 [ 78.585893][ T2462] wb_workfn+0xba1/0x1090 [ 78.601387][ T35] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 78.606397][ T2462] ? __pfx_wb_workfn+0x10/0x10 [ 78.608707][ T35] flags: 0xfff80000000040(head|node=0|zone=1|lastcpupid=0xfff) [ 78.615808][ T2462] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 78.621957][ T35] page_type: 0xffffefff(slab) [ 78.631914][ T2462] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 78.637035][ T35] raw: 00fff80000000040 ffff888015042140 dead000000000100 dead000000000122 [ 78.644566][ T2462] ? process_scheduled_works+0x945/0x1830 [ 78.649336][ T35] raw: 0000000000000000 0000000000040004 00000001ffffefff 0000000000000000 [ 78.657031][ T2462] process_scheduled_works+0xa2c/0x1830 [ 78.663076][ T35] head: 00fff80000000040 ffff888015042140 dead000000000100 dead000000000122 [ 78.667886][ T2462] ? __pfx_process_scheduled_works+0x10/0x10 [ 78.674197][ T35] head: 0000000000000000 0000000000040004 00000001ffffefff 0000000000000000 [ 78.682926][ T2462] ? assign_work+0x364/0x3d0 [ 78.688622][ T35] head: 00fff80000000003 ffffea0000812001 ffffea0000812048 00000000ffffffff [ 78.697347][ T2462] worker_thread+0x86d/0xd70 [ 78.702892][ T35] head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000 [ 78.712053][ T2462] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 78.718455][ T35] page dumped because: kasan: bad access detected [ 78.728140][ T2462] ? __kthread_parkme+0x169/0x1d0 [ 78.732884][ T35] page_owner tracks the page as allocated [ 78.741884][ T2462] ? __pfx_worker_thread+0x10/0x10 [ 78.746460][ T35] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid -957297381 (swapper/0), ts 1, free_ts 0 [ 78.755395][ T2462] kthread+0x2f0/0x390 [ 78.761439][ T35] post_alloc_hook+0x1f3/0x230 [ 78.768002][ T2462] ? __pfx_worker_thread+0x10/0x10 [pid 6106] exit_group(0) = ? [ 78.773032][ T35] get_page_from_freelist+0x2e7e/0x2f40 [ 78.778819][ T2462] ? __pfx_kthread+0x10/0x10 [ 78.783903][ T35] __alloc_pages_noprof+0x256/0x6c0 [ 78.803755][ T2462] ret_from_fork+0x4b/0x80 [ 78.807811][ T35] alloc_slab_page+0x5f/0x120 [ 78.812639][ T2462] ? __pfx_kthread+0x10/0x10 [ 78.817983][ T35] allocate_slab+0x5a/0x2e0 [ 78.823681][ T2462] ret_from_fork_asm+0x1a/0x30 [ 78.828329][ T35] ___slab_alloc+0xea8/0x1430 [ 78.833598][ T2462] [ 78.838244][ T35] __slab_alloc+0x58/0xa0 [ 78.870498][ T35] kmalloc_node_trace_noprof+0x20c/0x300 [ 78.876338][ T35] bdi_alloc+0x4f/0x140 [ 78.880666][ T35] __alloc_disk_node+0xb8/0x590 [ 78.885549][ T35] __blk_mq_alloc_disk+0x17d/0x260 [ 78.890898][ T35] loop_add+0x448/0xba0 [ 78.895195][ T35] loop_init+0x17a/0x230 [ 78.899480][ T35] do_one_initcall+0x248/0x880 [ 78.904428][ T35] do_initcall_level+0x157/0x210 [ 78.909630][ T35] do_initcalls+0x3f/0x80 [ 78.914142][ T35] page_owner free stack trace missing [ 78.919754][ T35] [ 78.922244][ T35] Memory state around the buggy address: [ 78.927857][ T35] ffff888020485e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 78.936250][ T35] ffff888020485f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 78.944995][ T35] >ffff888020485f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 78.953127][ T35] ^ [ 78.958489][ T35] ffff888020486000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.966708][ T35] ffff888020486080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.975066][ T35] ================================================================== [ 78.983140][ T35] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 78.990757][ T35] CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.9.0-rc2-next-20240402-syzkaller #0 [ 79.000727][ T35] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 79.011294][ T35] Workqueue: writeback wb_workfn (flush-7:1) [ 79.017553][ T35] Call Trace: [ 79.020925][ T35] [ 79.023864][ T35] dump_stack_lvl+0x241/0x360 [ 79.028914][ T35] ? __pfx_dump_stack_lvl+0x10/0x10 [ 79.035287][ T35] ? __pfx__printk+0x10/0x10 [ 79.040144][ T35] ? rcu_is_watching+0x15/0xb0 [ 79.045077][ T35] ? lock_release+0xbf/0x9f0 [ 79.049837][ T35] ? vscnprintf+0x5d/0x90 [ 79.054269][ T35] panic+0x349/0x860 [ 79.058447][ T35] ? check_panic_on_warn+0x21/0xb0 [ 79.063605][ T35] ? __pfx_panic+0x10/0x10 [ 79.068149][ T35] ? do_raw_spin_unlock+0x13c/0x8b0 [ 79.073634][ T35] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 79.079639][ T35] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 79.086356][ T35] ? print_report+0x502/0x550 [ 79.091277][ T35] check_panic_on_warn+0x86/0xb0 [ 79.096350][ T35] ? __lock_acquire+0x78/0x1fd0 [ 79.101459][ T35] end_report+0x77/0x160 [ 79.105782][ T35] kasan_report+0x154/0x180 [ 79.110740][ T35] ? __lock_acquire+0x78/0x1fd0 [ 79.115759][ T35] __lock_acquire+0x78/0x1fd0 [ 79.122199][ T35] ? __pfx_reacquire_held_locks+0x10/0x10 [ 79.128268][ T35] lock_acquire+0x1ed/0x550 [ 79.132851][ T35] ? wb_writeback+0x66f/0xd30 [ 79.137812][ T35] ? __pfx_lock_acquire+0x10/0x10 [ 79.142830][ T35] ? __pfx___up_read+0x10/0x10 [ 79.147693][ T35] ? do_raw_spin_lock+0x14f/0x370 [ 79.152745][ T35] _raw_spin_lock+0x2e/0x40 [ 79.157447][ T35] ? wb_writeback+0x66f/0xd30 [ 79.162209][ T35] wb_writeback+0x66f/0xd30 [ 79.166993][ T35] ? __pfx_wb_writeback+0x10/0x10 [ 79.172216][ T35] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 79.178323][ T35] wb_workfn+0xba1/0x1090 [ 79.182671][ T35] ? __pfx_wb_workfn+0x10/0x10 [ 79.187763][ T35] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 79.194086][ T35] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 79.200430][ T35] ? process_scheduled_works+0x945/0x1830 [ 79.206523][ T35] process_scheduled_works+0xa2c/0x1830 [ 79.212266][ T35] ? __pfx_process_scheduled_works+0x10/0x10 [ 79.218785][ T35] ? assign_work+0x364/0x3d0 [ 79.223859][ T35] worker_thread+0x86d/0xd70 [ 79.228449][ T35] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 79.235396][ T35] ? __kthread_parkme+0x169/0x1d0 [ 79.240612][ T35] ? __pfx_worker_thread+0x10/0x10 [ 79.246017][ T35] kthread+0x2f0/0x390 [ 79.250324][ T35] ? __pfx_worker_thread+0x10/0x10 [ 79.255533][ T35] ? __pfx_kthread+0x10/0x10 [ 79.260816][ T35] ret_from_fork+0x4b/0x80 [ 79.265500][ T35] ? __pfx_kthread+0x10/0x10 [ 79.270270][ T35] ret_from_fork_asm+0x1a/0x30 [ 79.275062][ T35] [ 79.278497][ T35] Kernel Offset: disabled [ 79.282811][ T35] Rebooting in 86400 seconds..