./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2232752154 <...> Warning: Permanently added '10.128.1.102' (ED25519) to the list of known hosts. execve("./syz-executor2232752154", ["./syz-executor2232752154"], 0x7ffdade455e0 /* 10 vars */) = 0 brk(NULL) = 0x555556477000 brk(0x555556477d00) = 0x555556477d00 arch_prctl(ARCH_SET_FS, 0x555556477380) = 0 set_tid_address(0x555556477650) = 5027 set_robust_list(0x555556477660, 24) = 0 rseq(0x555556477ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2232752154", 4096) = 28 getrandom("\x72\x17\xec\x0c\x47\xd8\x29\x72", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556477d00 brk(0x555556498d00) = 0x555556498d00 brk(0x555556499000) = 0x555556499000 mprotect(0x7ff2a8a15000, 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 5028 attached , child_tidptr=0x555556477650) = 5028 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] set_robust_list(0x555556477660, 24) = 0 ./strace-static-x86_64: Process 5029 attached [pid 5027] <... clone resumed>, child_tidptr=0x555556477650) = 5029 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] set_robust_list(0x555556477660, 24 [pid 5028] <... openat resumed>) = 3 [pid 5029] <... set_robust_list resumed>) = 0 [pid 5028] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5030 attached [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5028] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5027] <... clone resumed>, child_tidptr=0x555556477650) = 5030 [pid 5030] set_robust_list(0x555556477660, 24 [pid 5028] close(3 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] <... set_robust_list resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5028] <... close resumed>) = 0 [pid 5029] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] close(3./strace-static-x86_64: Process 5031 attached [pid 5027] <... clone resumed>, child_tidptr=0x555556477650) = 5031 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5032 attached [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] set_robust_list(0x555556477660, 24 [pid 5032] set_robust_list(0x555556477660, 24) = 0 [pid 5032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5031] <... set_robust_list resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5032] <... prctl resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5032] setpgid(0, 0) = 0 [pid 5030] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] <... openat resumed>) = 3 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5032 [pid 5032] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5034 attached [pid 5027] <... clone resumed>, child_tidptr=0x555556477650) = 5034 [pid 5032] close(3 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5030] close(3 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] set_robust_list(0x555556477660, 24 [pid 5032] <... close resumed>) = 0 [pid 5031] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5030] <... close resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5033 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5032] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5032] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5031] close(3 [pid 5034] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5036 attached [pid 5031] <... close resumed>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5032] <... openat resumed>) = 4 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5036] set_robust_list(0x555556477660, 24) = 0 ./strace-static-x86_64: Process 5037 attached ./strace-static-x86_64: Process 5033 attached [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5032] sendfile(4, 3, [88]./strace-static-x86_64: Process 5035 attached [pid 5033] set_robust_list(0x555556477660, 24 [pid 5027] <... clone resumed>, child_tidptr=0x555556477650) = 5036 [pid 5035] set_robust_list(0x555556477660, 24 [pid 5037] set_robust_list(0x555556477660, 24 [pid 5033] <... set_robust_list resumed>) = 0 [pid 5034] <... openat resumed>) = 3 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5037 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5035 [pid 5035] <... set_robust_list resumed>) = 0 [pid 5037] <... set_robust_list resumed>) = 0 [pid 5036] <... openat resumed>) = 3 [pid 5033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5033] <... prctl resumed>) = 0 [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5035] <... prctl resumed>) = 0 [pid 5037] <... prctl resumed>) = 0 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5033] setpgid(0, 0 [pid 5034] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5035] setpgid(0, 0 [pid 5037] setpgid(0, 0 [pid 5033] <... setpgid resumed>) = 0 [pid 5034] close(3 [pid 5035] <... setpgid resumed>) = 0 [pid 5033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] <... close resumed>) = 0 [pid 5037] <... setpgid resumed>) = 0 [pid 5036] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5035] <... openat resumed>) = 3 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] close(3 [pid 5033] <... openat resumed>) = 3 [pid 5037] <... openat resumed>) = 3 [pid 5036] <... close resumed>) = 0 [pid 5035] write(3, "1000", 4) = 4 [pid 5033] write(3, "1000", 4 [pid 5035] close(3 [pid 5033] <... write resumed>) = 4 [pid 5035] <... close resumed>) = 0 [pid 5037] write(3, "1000", 4 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5038 attached [pid 5035] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5037] <... write resumed>) = 4 [pid 5033] close(3 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5038 [pid 5038] set_robust_list(0x555556477660, 24 [pid 5037] close(3 [pid 5033] <... close resumed>) = 0 [pid 5038] <... set_robust_list resumed>) = 0 [pid 5037] <... close resumed>) = 0 [pid 5038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5035] <... openat resumed>) = 3 [pid 5037] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5033] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5040 attached [pid 5038] <... prctl resumed>) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5037] <... openat resumed>) = 3 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5040 [pid 5033] <... openat resumed>) = 3 [pid 5040] set_robust_list(0x555556477660, 24 [pid 5038] setpgid(0, 0 [pid 5035] <... openat resumed>) = 4 [pid 5037] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5040] <... set_robust_list resumed>) = 0 [pid 5033] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5040] setpgid(0, 0) = 0 [pid 5037] <... openat resumed>) = 4 [pid 5040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5038] <... setpgid resumed>) = 0 [pid 5035] sendfile(4, 3, [88] [pid 5033] <... openat resumed>) = 4 [pid 5033] sendfile(4, 3, [88] [pid 5040] <... openat resumed>) = 3 [pid 5037] sendfile(4, 3, [88] [pid 5038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5040] write(3, "1000", 4 [pid 5038] <... openat resumed>) = 3 [pid 5040] <... write resumed>) = 4 [pid 5040] close(3) = 0 [pid 5040] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5040] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5038] write(3, "1000", 4) = 4 [pid 5038] close(3 [pid 5040] <... openat resumed>) = 4 [pid 5038] <... close resumed>) = 0 [pid 5040] sendfile(4, 3, [88] [pid 5038] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5038] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5038] sendfile(4, 3, [88] => [95], 7) = 7 [pid 5035] <... sendfile resumed> => [95], 7) = 7 [pid 5033] <... sendfile resumed> => [95], 7) = 7 [pid 5038] memfd_create("syzkaller", 0 [pid 5035] memfd_create("syzkaller", 0 [ 62.928959][ T5038] syz-executor223 (5038): drop_caches: 1 [ 62.939587][ T5035] syz-executor223 (5035): drop_caches: 1 [ 62.945872][ T5033] syz-executor223 (5033): drop_caches: 1 [ 62.959609][ T5038] syz-executor223[5038]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5033] memfd_create("syzkaller", 0 [pid 5035] <... memfd_create resumed>) = 5 [pid 5033] <... memfd_create resumed>) = 5 [pid 5038] <... memfd_create resumed>) = 5 [pid 5035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5033] <... mmap resumed>) = 0x7ff2a0544000 [pid 5032] <... sendfile resumed> => [95], 7) = 7 [pid 5035] <... mmap resumed>) = 0x7ff2a0544000 [pid 5032] memfd_create("syzkaller", 0) = 5 [pid 5038] <... mmap resumed>) = 0x7ff2a0544000 [pid 5032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5037] <... sendfile resumed> => [95], 7) = 7 [pid 5032] <... mmap resumed>) = 0x7ff2a0544000 [pid 5037] memfd_create("syzkaller", 0) = 5 [pid 5040] <... sendfile resumed> => [95], 7) = 7 [pid 5037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5040] memfd_create("syzkaller", 0 [pid 5037] <... mmap resumed>) = 0x7ff2a0544000 [pid 5040] <... memfd_create resumed>) = 5 [ 62.974161][ T5032] syz-executor223 (5032): drop_caches: 1 [ 62.989213][ T5037] syz-executor223 (5037): drop_caches: 1 [ 62.998607][ T5040] syz-executor223 (5040): drop_caches: 1 [pid 5040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5035] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5038] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5033] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5032] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5035] <... write resumed>) = 2097152 [pid 5032] <... write resumed>) = 2097152 [pid 5033] <... write resumed>) = 2097152 [pid 5035] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5037] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5040] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5038] <... write resumed>) = 2097152 [pid 5035] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5033] munmap(0x7ff2a0544000, 138412032 [pid 5032] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5035] <... openat resumed>) = 6 [pid 5033] <... munmap resumed>) = 0 [pid 5035] ioctl(6, LOOP_SET_FD, 5 [pid 5032] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5035] <... ioctl resumed>) = 0 [pid 5032] <... openat resumed>) = 6 [pid 5038] munmap(0x7ff2a0544000, 138412032 [pid 5032] ioctl(6, LOOP_SET_FD, 5 [pid 5033] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5032] <... ioctl resumed>) = 0 [pid 5033] ioctl(6, LOOP_SET_FD, 5 [pid 5038] <... munmap resumed>) = 0 [pid 5038] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5038] ioctl(6, LOOP_SET_FD, 5 [pid 5032] close(5 [pid 5037] <... write resumed>) = 2097152 [pid 5033] <... ioctl resumed>) = 0 [pid 5032] <... close resumed>) = 0 [pid 5032] mkdir("./file0", 0777 [pid 5037] munmap(0x7ff2a0544000, 138412032 [pid 5033] close(5 [pid 5035] close(5 [pid 5033] <... close resumed>) = 0 [pid 5033] mkdir("./file0", 0777 [pid 5035] <... close resumed>) = 0 [pid 5035] mkdir("./file0", 0777 [pid 5037] <... munmap resumed>) = 0 [pid 5037] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5038] <... ioctl resumed>) = 0 [pid 5037] ioctl(6, LOOP_SET_FD, 5 [pid 5038] close(5) = 0 [pid 5040] <... write resumed>) = 2097152 [pid 5038] mkdir("./file0", 0777 [pid 5040] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5040] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5037] <... ioctl resumed>) = 0 [pid 5037] close(5 [pid 5040] <... openat resumed>) = 6 [pid 5037] <... close resumed>) = 0 [pid 5040] ioctl(6, LOOP_SET_FD, 5 [ 63.174658][ T5035] loop2: detected capacity change from 0 to 4096 [ 63.185316][ T5032] loop0: detected capacity change from 0 to 4096 [ 63.193073][ T5033] loop1: detected capacity change from 0 to 4096 [ 63.195570][ T5038] loop4: detected capacity change from 0 to 4096 [ 63.215788][ T5037] loop3: detected capacity change from 0 to 4096 [pid 5037] mkdir("./file0", 0777 [pid 5040] <... ioctl resumed>) = 0 [pid 5040] close(5) = 0 [pid 5040] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5038] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5035] <... mkdir resumed>) = -1 EEXIST (File exists) [ 63.223996][ T5040] loop5: detected capacity change from 0 to 4096 [ 63.278687][ T5033] ntfs: (device loop1): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 63.278722][ T5040] ntfs: (device loop5): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [pid 5037] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5033] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5032] <... mkdir resumed>) = 0 [pid 5033] mount("/dev/loop1", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5032] mount("/dev/loop0", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5038] mount("/dev/loop4", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5040] mount("/dev/loop5", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5035] mount("/dev/loop2", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [ 63.299976][ T5032] ntfs: (device loop0): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 63.321103][ T5037] ntfs: (device loop3): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 63.340841][ T5038] ntfs: (device loop4): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 63.362687][ T5035] ntfs: (device loop2): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 63.383506][ T5032] ntfs: (device loop0): read_ntfs_boot_sector(): Primary boot sector is invalid. [ 63.415525][ T5037] ntfs: (device loop3): read_ntfs_boot_sector(): Primary boot sector is invalid. [pid 5037] mount("/dev/loop3", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000017777777777,dmask=0000000000400"... [pid 5033] <... mount resumed>) = 0 [ 63.415669][ T5035] ntfs: (device loop2): read_ntfs_boot_sector(): Primary boot sector is invalid. [ 63.424859][ T5040] ntfs: (device loop5): read_ntfs_boot_sector(): Primary boot sector is invalid. [ 63.451743][ T5033] ntfs: volume version 3.1. [ 63.451784][ T5037] ntfs: volume version 3.1. [ 63.465084][ T5038] ntfs: volume version 3.1. [pid 5037] <... mount resumed>) = 0 [pid 5037] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5037] chdir("./file0") = 0 [pid 5037] ioctl(6, LOOP_CLR_FD) = 0 [pid 5037] close(6 [pid 5033] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5037] <... close resumed>) = 0 [pid 5033] <... openat resumed>) = 5 [pid 5038] <... mount resumed>) = 0 [pid 5033] chdir("./file0" [pid 5038] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5033] <... chdir resumed>) = 0 [pid 5038] <... openat resumed>) = 5 [pid 5037] creat("./file1", 000 [pid 5033] ioctl(6, LOOP_CLR_FD [pid 5038] chdir("./file0" [pid 5033] <... ioctl resumed>) = 0 [pid 5032] <... mount resumed>) = 0 [pid 5038] <... chdir resumed>) = 0 [pid 5033] close(6 [pid 5032] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5038] ioctl(6, LOOP_CLR_FD [pid 5035] <... mount resumed>) = 0 [pid 5037] <... creat resumed>) = 6 [pid 5033] <... close resumed>) = 0 [pid 5032] <... openat resumed>) = 5 [pid 5038] <... ioctl resumed>) = 0 [pid 5035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5033] creat("./file1", 000 [pid 5032] chdir("./file0" [pid 5038] close(6 [pid 5035] <... openat resumed>) = 5 [pid 5037] exit_group(0 [pid 5032] <... chdir resumed>) = 0 [pid 5038] <... close resumed>) = 0 [pid 5035] chdir("./file0" [pid 5037] <... exit_group resumed>) = ? [pid 5033] <... creat resumed>) = 6 [pid 5032] ioctl(6, LOOP_CLR_FD [pid 5038] creat("./file1", 000 [pid 5035] <... chdir resumed>) = 0 [pid 5037] +++ exited with 0 +++ [pid 5033] exit_group(0 [pid 5032] <... ioctl resumed>) = 0 [pid 5035] ioctl(6, LOOP_CLR_FD [pid 5033] <... exit_group resumed>) = ? [pid 5032] close(6 [pid 5035] <... ioctl resumed>) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5037, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5033] +++ exited with 0 +++ [pid 5035] close(6 [pid 5032] <... close resumed>) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5035] <... close resumed>) = 0 [pid 5032] creat("./file1", 000 [pid 5031] <... ioctl resumed>) = 0 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5033, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5035] creat("./file1", 000 [pid 5031] close(3 [pid 5038] <... creat resumed>) = 6 [pid 5035] <... creat resumed>) = 6 [pid 5032] <... creat resumed>) = 6 [pid 5031] <... close resumed>) = 0 [pid 5035] exit_group(0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5038] exit_group(0 [pid 5035] <... exit_group resumed>) = ? [pid 5032] exit_group(0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... openat resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5035] +++ exited with 0 +++ [pid 5029] close(3 [pid 5032] <... exit_group resumed>) = ? [pid 5029] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5038] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5044 attached [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5044 ./strace-static-x86_64: Process 5045 attached [pid 5044] set_robust_list(0x555556477660, 24 [pid 5038] +++ exited with 0 +++ [pid 5044] <... set_robust_list resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5045 [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5038, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5045] set_robust_list(0x555556477660, 24) = 0 [pid 5044] <... prctl resumed>) = 0 [pid 5034] restart_syscall(<... resuming interrupted clone ...> [pid 5032] +++ exited with 0 +++ [pid 5045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] setpgid(0, 0 [pid 5040] <... mount resumed>) = 0 [pid 5034] <... restart_syscall resumed>) = 0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5035, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 63.489900][ T5032] ntfs: volume version 3.1. [ 63.494770][ T5035] ntfs: volume version 3.1. [ 63.511377][ T5040] ntfs: volume version 3.1. [pid 5045] <... prctl resumed>) = 0 [pid 5044] <... setpgid resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5032, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5044] <... openat resumed>) = 3 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5028] <... openat resumed>) = 3 [pid 5044] write(3, "1000", 4 [pid 5034] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5044] <... write resumed>) = 4 [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5028] <... ioctl resumed>) = 0 [pid 5034] <... ioctl resumed>) = 0 [pid 5028] close(3 [pid 5044] close(3 [pid 5034] close(3 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5028] <... close resumed>) = 0 [pid 5045] setpgid(0, 0 [pid 5044] <... close resumed>) = 0 [pid 5040] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5034] <... close resumed>) = 0 [pid 5045] <... setpgid resumed>) = 0 [pid 5044] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] <... openat resumed>) = 3 [pid 5040] <... openat resumed>) = 5 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5046 attached [pid 5045] <... openat resumed>) = 3 [pid 5044] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5040] chdir("./file0" [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5046 ./strace-static-x86_64: Process 5047 attached [pid 5046] set_robust_list(0x555556477660, 24 [pid 5045] write(3, "1000", 4 [pid 5044] <... openat resumed>) = 4 [pid 5040] <... chdir resumed>) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5047 [pid 5047] set_robust_list(0x555556477660, 24 [pid 5046] <... set_robust_list resumed>) = 0 [pid 5045] <... write resumed>) = 4 [pid 5044] sendfile(4, 3, [88] [pid 5040] ioctl(6, LOOP_CLR_FD [pid 5030] <... openat resumed>) = 3 [pid 5047] <... set_robust_list resumed>) = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5045] close(3 [pid 5040] <... ioctl resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5040] close(6 [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5046] <... prctl resumed>) = 0 [pid 5045] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5040] <... close resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5047] <... prctl resumed>) = 0 [pid 5046] setpgid(0, 0 [pid 5045] <... openat resumed>) = 3 [pid 5040] creat("./file1", 000 [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3) = 0 [pid 5047] setpgid(0, 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5040] <... creat resumed>) = 6 [pid 5046] <... setpgid resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5047] <... setpgid resumed>) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] <... openat resumed>) = 4 [pid 5040] exit_group(0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5048 ./strace-static-x86_64: Process 5048 attached [pid 5048] set_robust_list(0x555556477660, 24 [pid 5047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5045] sendfile(4, 3, [88] [pid 5048] <... set_robust_list resumed>) = 0 [pid 5046] <... openat resumed>) = 3 [pid 5040] <... exit_group resumed>) = ? [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5047] <... openat resumed>) = 3 [pid 5040] +++ exited with 0 +++ [pid 5048] <... prctl resumed>) = 0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5040, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3 [pid 5048] setpgid(0, 0 [pid 5047] write(3, "1000", 4 [pid 5046] write(3, "1000", 4 [pid 5036] <... close resumed>) = 0 [pid 5048] <... setpgid resumed>) = 0 [pid 5047] <... write resumed>) = 4 [pid 5046] <... write resumed>) = 4 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5049 attached [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5047] close(3 [pid 5046] close(3 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5049 [pid 5049] set_robust_list(0x555556477660, 24) = 0 [pid 5049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5049] setpgid(0, 0) = 0 [pid 5049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5048] <... openat resumed>) = 3 [pid 5047] <... close resumed>) = 0 [pid 5046] <... close resumed>) = 0 [pid 5049] write(3, "1000", 4 [pid 5048] write(3, "1000", 4 [pid 5047] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5046] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5048] <... write resumed>) = 4 [pid 5047] <... openat resumed>) = 3 [pid 5046] <... openat resumed>) = 3 [pid 5048] close(3 [pid 5047] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5046] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5049] <... write resumed>) = 4 [pid 5048] <... close resumed>) = 0 [pid 5047] <... openat resumed>) = 4 [pid 5046] <... openat resumed>) = 4 [pid 5049] close(3 [pid 5048] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5047] sendfile(4, 3, [88] [pid 5046] sendfile(4, 3, [88] [pid 5049] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5049] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5049] sendfile(4, 3, [88] [pid 5048] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5048] sendfile(4, 3, [88] [pid 5045] <... sendfile resumed> => [95], 7) = 7 [ 63.872536][ T5045] syz-executor223 (5045): drop_caches: 1 [ 63.873991][ T5044] syz-executor223 (5044): drop_caches: 1 [ 63.891355][ T5048] syz-executor223 (5048): drop_caches: 1 [ 63.901915][ T5047] syz-executor223 (5047): drop_caches: 1 [pid 5045] memfd_create("syzkaller", 0 [pid 5049] <... sendfile resumed> => [95], 7) = 7 [pid 5048] <... sendfile resumed> => [95], 7) = 7 [pid 5047] <... sendfile resumed> => [95], 7) = 7 [pid 5045] <... memfd_create resumed>) = 5 [pid 5044] <... sendfile resumed> => [95], 7) = 7 [pid 5049] memfd_create("syzkaller", 0 [pid 5048] memfd_create("syzkaller", 0 [pid 5047] memfd_create("syzkaller", 0 [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5046] <... sendfile resumed> => [95], 7) = 7 [pid 5044] memfd_create("syzkaller", 0 [pid 5045] <... mmap resumed>) = 0x7ff2a0544000 [pid 5046] memfd_create("syzkaller", 0 [pid 5044] <... memfd_create resumed>) = 5 [pid 5046] <... memfd_create resumed>) = 5 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... memfd_create resumed>) = 5 [pid 5048] <... memfd_create resumed>) = 5 [pid 5047] <... memfd_create resumed>) = 5 [pid 5046] <... mmap resumed>) = 0x7ff2a0544000 [pid 5044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] <... mmap resumed>) = 0x7ff2a0544000 [pid 5048] <... mmap resumed>) = 0x7ff2a0544000 [pid 5047] <... mmap resumed>) = 0x7ff2a0544000 [ 63.918941][ T5049] syz-executor223 (5049): drop_caches: 1 [ 63.922756][ T5046] syz-executor223 (5046): drop_caches: 1 [pid 5045] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5049] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5048] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5044] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5046] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5047] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5045] <... write resumed>) = 2097152 [pid 5048] <... write resumed>) = 2097152 [pid 5047] <... write resumed>) = 2097152 [pid 5046] <... write resumed>) = 2097152 [pid 5046] munmap(0x7ff2a0544000, 138412032 [pid 5045] munmap(0x7ff2a0544000, 138412032 [pid 5046] <... munmap resumed>) = 0 [pid 5045] <... munmap resumed>) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5045] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5044] <... write resumed>) = 2097152 [pid 5045] <... openat resumed>) = 6 [pid 5045] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5045] ioctl(6, LOOP_CLR_FD) = 0 [pid 5048] munmap(0x7ff2a0544000, 138412032 [pid 5046] <... openat resumed>) = 6 [pid 5049] <... write resumed>) = 2097152 [pid 5047] munmap(0x7ff2a0544000, 138412032 [pid 5046] ioctl(6, LOOP_SET_FD, 5 [pid 5045] ioctl(6, LOOP_SET_FD, 5 [pid 5044] munmap(0x7ff2a0544000, 138412032 [pid 5049] munmap(0x7ff2a0544000, 138412032 [pid 5048] <... munmap resumed>) = 0 [pid 5046] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5045] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5046] ioctl(6, LOOP_CLR_FD [pid 5045] close(6 [pid 5049] <... munmap resumed>) = 0 [pid 5048] <... openat resumed>) = 6 [pid 5047] <... munmap resumed>) = 0 [pid 5046] <... ioctl resumed>) = 0 [pid 5045] <... close resumed>) = 0 [pid 5044] <... munmap resumed>) = 0 [pid 5045] close(5 [pid 5049] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5049] ioctl(6, LOOP_SET_FD, 5 [pid 5048] ioctl(6, LOOP_SET_FD, 5 [pid 5046] ioctl(6, LOOP_SET_FD, 5 [pid 5049] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5046] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] ioctl(6, LOOP_CLR_FD [pid 5048] ioctl(6, LOOP_CLR_FD [pid 5046] close(6 [pid 5049] <... ioctl resumed>) = 0 [pid 5048] <... ioctl resumed>) = 0 [pid 5047] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5046] <... close resumed>) = 0 [pid 5044] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5047] <... openat resumed>) = 6 [pid 5046] close(5 [pid 5044] <... openat resumed>) = 6 [pid 5047] ioctl(6, LOOP_SET_FD, 5 [pid 5044] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5047] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5044] ioctl(6, LOOP_CLR_FD) = 0 [pid 5047] ioctl(6, LOOP_CLR_FD [pid 5048] ioctl(6, LOOP_SET_FD, 5 [pid 5047] <... ioctl resumed>) = 0 [pid 5049] ioctl(6, LOOP_SET_FD, 5 [pid 5048] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] close(6 [pid 5048] close(6 [pid 5044] ioctl(6, LOOP_SET_FD, 5 [pid 5049] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5044] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] close(5 [pid 5044] close(6 [pid 5048] close(5 [pid 5045] <... close resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5047] ioctl(6, LOOP_SET_FD, 5 [pid 5044] close(5 [pid 5047] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5047] close(6 [pid 5045] creat("./file1", 000 [pid 5047] <... close resumed>) = 0 [pid 5045] <... creat resumed>) = 5 [pid 5047] close(5 [pid 5046] <... close resumed>) = 0 [pid 5045] exit_group(0 [pid 5049] <... close resumed>) = 0 [pid 5046] creat("./file1", 000 [pid 5045] <... exit_group resumed>) = ? [pid 5049] creat("./file1", 000 [pid 5046] <... creat resumed>) = 5 [pid 5045] +++ exited with 0 +++ [pid 5049] <... creat resumed>) = 5 [pid 5046] exit_group(0) = ? [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5045, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5049] exit_group(0 [pid 5046] +++ exited with 0 +++ [pid 5044] <... close resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5046, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5029] <... openat resumed>) = 3 [pid 5028] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5029] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] <... openat resumed>) = 3 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5050 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 5050 attached [pid 5049] <... exit_group resumed>) = ? [pid 5050] set_robust_list(0x555556477660, 24 [pid 5048] <... close resumed>) = 0 [pid 5028] close(3 [pid 5050] <... set_robust_list resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5044] creat("./file1", 000 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... prctl resumed>) = 0 [pid 5049] +++ exited with 0 +++ [pid 5044] <... creat resumed>) = 5 [pid 5050] setpgid(0, 0 [pid 5044] exit_group(0) = ? [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5049, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5051 attached [pid 5050] <... setpgid resumed>) = 0 [pid 5051] set_robust_list(0x555556477660, 24 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... set_robust_list resumed>) = 0 [pid 5050] <... openat resumed>) = 3 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5036] <... openat resumed>) = 3 [pid 5051] setpgid(0, 0 [pid 5050] write(3, "1000", 4 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5051 [pid 5051] <... setpgid resumed>) = 0 [pid 5050] <... write resumed>) = 4 [pid 5036] <... ioctl resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] close(3 [pid 5048] creat("./file1", 000 [pid 5047] <... close resumed>) = 0 [pid 5044] +++ exited with 0 +++ [pid 5036] close(3 [pid 5051] <... openat resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5048] <... creat resumed>) = 5 [pid 5047] creat("./file1", 000 [pid 5036] <... close resumed>) = 0 [pid 5051] write(3, "1000", 4 [pid 5050] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5048] exit_group(0 [pid 5047] <... creat resumed>) = 5 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5044, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5051] <... write resumed>) = 4 [pid 5050] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5052 attached [pid 5051] close(3 [pid 5050] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5052] set_robust_list(0x555556477660, 24 [pid 5051] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = 4 [pid 5048] <... exit_group resumed>) = ? [pid 5047] exit_group(0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5052 [pid 5031] <... restart_syscall resumed>) = 0 [pid 5052] <... set_robust_list resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5050] sendfile(4, 3, [88] [pid 5047] <... exit_group resumed>) = ? [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] +++ exited with 0 +++ [pid 5052] <... prctl resumed>) = 0 [pid 5051] <... openat resumed>) = 3 [pid 5052] setpgid(0, 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] <... setpgid resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5031] <... openat resumed>) = 3 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5048, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... openat resumed>) = 4 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... openat resumed>) = 3 [pid 5051] sendfile(4, 3, [88] [pid 5030] <... openat resumed>) = 3 [pid 5052] write(3, "1000", 4 [pid 5047] +++ exited with 0 +++ [pid 5031] <... ioctl resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5052] <... write resumed>) = 4 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5047, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5031] close(3 [pid 5052] close(3 [pid 5030] <... ioctl resumed>) = 0 [pid 5031] <... close resumed>) = 0 [pid 5052] <... close resumed>) = 0 [pid 5030] close(3 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5030] <... close resumed>) = 0 [pid 5034] <... openat resumed>) = 3 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5054 attached ) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5054 [pid 5054] set_robust_list(0x555556477660, 24 [pid 5034] close(3 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5053 ./strace-static-x86_64: Process 5053 attached [pid 5054] <... set_robust_list resumed>) = 0 [pid 5034] <... close resumed>) = 0 [pid 5053] set_robust_list(0x555556477660, 24 [pid 5052] <... openat resumed>) = 3 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5055 attached [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] <... set_robust_list resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5055] set_robust_list(0x555556477660, 24 [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... set_robust_list resumed>) = 0 [pid 5054] <... prctl resumed>) = 0 [pid 5053] <... prctl resumed>) = 0 [pid 5052] <... openat resumed>) = 4 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5055 [pid 5054] setpgid(0, 0) = 0 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] setpgid(0, 0 [pid 5055] <... prctl resumed>) = 0 [pid 5053] <... setpgid resumed>) = 0 [pid 5055] setpgid(0, 0 [pid 5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] sendfile(4, 3, [88] [pid 5053] <... openat resumed>) = 3 [pid 5055] <... setpgid resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5053] write(3, "1000", 4 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] write(3, "1000", 4 [pid 5053] <... write resumed>) = 4 [pid 5054] <... write resumed>) = 4 [pid 5055] <... openat resumed>) = 3 [pid 5054] close(3 [pid 5053] close(3 [pid 5055] write(3, "1000", 4 [pid 5053] <... close resumed>) = 0 [pid 5055] <... write resumed>) = 4 [pid 5054] <... close resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5055] close(3 [pid 5053] <... openat resumed>) = 3 [pid 5053] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5053] sendfile(4, 3, [88] [pid 5055] <... close resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5055] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5055] sendfile(4, 3, [88] [pid 5054] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5054] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 64.532690][ T5050] syz-executor223 (5050): drop_caches: 1 [pid 5054] sendfile(4, 3, [88] [pid 5052] <... sendfile resumed> => [95], 7) = 7 [pid 5050] <... sendfile resumed> => [95], 7) = 7 [pid 5050] memfd_create("syzkaller", 0) = 5 [pid 5050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] memfd_create("syzkaller", 0 [pid 5050] <... mmap resumed>) = 0x7ff2a0544000 [pid 5052] <... memfd_create resumed>) = 5 [ 64.577634][ T5052] syz-executor223 (5052): drop_caches: 1 [pid 5052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5051] <... sendfile resumed> => [95], 7) = 7 [pid 5051] memfd_create("syzkaller", 0) = 5 [pid 5051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 64.622210][ T5053] syz-executor223 (5053): drop_caches: 1 [ 64.630663][ T5051] syz-executor223 (5051): drop_caches: 1 [ 64.652171][ T5055] syz-executor223 (5055): drop_caches: 1 [pid 5053] <... sendfile resumed> => [95], 7) = 7 [pid 5053] memfd_create("syzkaller", 0 [pid 5055] <... sendfile resumed> => [95], 7) = 7 [pid 5055] memfd_create("syzkaller", 0) = 5 [pid 5053] <... memfd_create resumed>) = 5 [pid 5055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... mmap resumed>) = 0x7ff2a0544000 [pid 5053] <... mmap resumed>) = 0x7ff2a0544000 [pid 5052] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5050] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5054] <... sendfile resumed> => [95], 7) = 7 [pid 5054] memfd_create("syzkaller", 0) = 5 [pid 5054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 64.688665][ T5054] syz-executor223 (5054): drop_caches: 1 [pid 5052] <... write resumed>) = 2097152 [pid 5050] <... write resumed>) = 2097152 [pid 5050] munmap(0x7ff2a0544000, 138412032 [pid 5052] munmap(0x7ff2a0544000, 138412032 [pid 5051] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5050] <... munmap resumed>) = 0 [pid 5052] <... munmap resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5053] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5052] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5050] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5050] ioctl(6, LOOP_CLR_FD) = 0 [pid 5052] <... openat resumed>) = 6 [pid 5055] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5052] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5052] ioctl(6, LOOP_CLR_FD [pid 5050] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5052] <... ioctl resumed>) = 0 [pid 5050] close(6 [pid 5052] ioctl(6, LOOP_SET_FD, 5 [pid 5051] <... write resumed>) = 2097152 [pid 5050] <... close resumed>) = 0 [pid 5052] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] close(6) = 0 [pid 5052] close(5 [pid 5054] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5050] close(5 [pid 5051] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5052] <... close resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5052] creat("./file1", 000) = 5 [pid 5052] exit_group(0) = ? [pid 5053] <... write resumed>) = 2097152 [pid 5051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5051] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5051] ioctl(6, LOOP_CLR_FD) = 0 [pid 5051] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5051] close(6) = 0 [pid 5051] close(5 [pid 5053] munmap(0x7ff2a0544000, 138412032 [pid 5050] creat("./file1", 000) = 5 [pid 5050] exit_group(0 [pid 5053] <... munmap resumed>) = 0 [pid 5052] +++ exited with 0 +++ [pid 5050] <... exit_group resumed>) = ? [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5052, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] <... write resumed>) = 2097152 [pid 5050] +++ exited with 0 +++ [pid 5036] <... openat resumed>) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5050, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5036] <... ioctl resumed>) = 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5056 ./strace-static-x86_64: Process 5056 attached [pid 5056] set_robust_list(0x555556477660, 24) = 0 [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] setpgid(0, 0) = 0 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] <... write resumed>) = 2097152 [pid 5056] <... openat resumed>) = 3 [pid 5056] write(3, "1000", 4) = 4 [pid 5056] close(3) = 0 [pid 5056] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5053] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5056] sendfile(4, 3, [88] [pid 5053] <... openat resumed>) = 6 [pid 5053] ioctl(6, LOOP_SET_FD, 5 [pid 5036] close(3 [pid 5053] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] <... close resumed>) = 0 [pid 5054] munmap(0x7ff2a0544000, 138412032 [pid 5051] <... close resumed>) = 0 [pid 5053] ioctl(6, LOOP_CLR_FD [pid 5051] creat("./file1", 000 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5057 attached [pid 5055] munmap(0x7ff2a0544000, 138412032 [pid 5054] <... munmap resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5051] <... creat resumed>) = 5 [pid 5057] set_robust_list(0x555556477660, 24 [pid 5055] <... munmap resumed>) = 0 [pid 5051] exit_group(0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5057 [pid 5057] <... set_robust_list resumed>) = 0 [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5054] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5055] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5054] ioctl(6, LOOP_SET_FD, 5 [pid 5055] <... openat resumed>) = 6 [pid 5054] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] ioctl(6, LOOP_CLR_FD) = 0 [pid 5055] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5055] ioctl(6, LOOP_CLR_FD) = 0 [pid 5054] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5057] <... prctl resumed>) = 0 [pid 5054] close(6 [pid 5051] <... exit_group resumed>) = ? [pid 5057] setpgid(0, 0 [pid 5053] ioctl(6, LOOP_SET_FD, 5 [pid 5057] <... setpgid resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] +++ exited with 0 +++ [pid 5055] ioctl(6, LOOP_SET_FD, 5 [pid 5053] close(6 [pid 5055] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5053] <... close resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5051, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5055] close(6 [pid 5028] restart_syscall(<... resuming interrupted clone ...> [pid 5055] <... close resumed>) = 0 [pid 5055] close(5 [pid 5053] close(5 [pid 5028] <... restart_syscall resumed>) = 0 [pid 5054] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5054] close(5 [pid 5057] write(3, "1000", 4) = 4 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5057] close(3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5057] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5028] <... ioctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5028] close(3) = 0 [pid 5057] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5058 attached , child_tidptr=0x555556477650) = 5058 [pid 5058] set_robust_list(0x555556477660, 24) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5058] <... prctl resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5058] setpgid(0, 0 [pid 5057] sendfile(4, 3, [88] [pid 5058] <... setpgid resumed>) = 0 [pid 5053] creat("./file1", 000 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] <... creat resumed>) = 5 [pid 5058] <... openat resumed>) = 3 [pid 5058] write(3, "1000", 4 [pid 5055] creat("./file1", 000 [pid 5058] <... write resumed>) = 4 [pid 5055] <... creat resumed>) = 5 [pid 5058] close(3) = 0 [pid 5055] exit_group(0 [pid 5054] <... close resumed>) = 0 [pid 5054] creat("./file1", 000 [pid 5058] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5055] <... exit_group resumed>) = ? [pid 5054] <... creat resumed>) = 5 [pid 5053] exit_group(0 [pid 5058] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5053] <... exit_group resumed>) = ? [pid 5055] +++ exited with 0 +++ [pid 5054] exit_group(0 [pid 5053] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5053, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5054] <... exit_group resumed>) = ? [pid 5054] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5055, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5034] restart_syscall(<... resuming interrupted clone ...> [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5054, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5034] <... restart_syscall resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5030] <... openat resumed>) = 3 [pid 5058] <... openat resumed>) = 4 [pid 5034] <... openat resumed>) = 3 [pid 5058] sendfile(4, 3, [88] [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5031] <... openat resumed>) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5034] <... ioctl resumed>) = 0 [pid 5030] <... ioctl resumed>) = 0 [pid 5034] close(3 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5034] <... close resumed>) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] <... ioctl resumed>) = 0 [pid 5030] close(3 [pid 5031] close(3 [pid 5030] <... close resumed>) = 0 [pid 5031] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5059 ./strace-static-x86_64: Process 5060 attached [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5060 [pid 5060] set_robust_list(0x555556477660, 24) = 0 ./strace-static-x86_64: Process 5059 attached [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] set_robust_list(0x555556477660, 24) = 0 [pid 5059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5059] setpgid(0, 0) = 0 [pid 5059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... prctl resumed>) = 0 [pid 5059] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5061 attached [pid 5060] setpgid(0, 0 [pid 5059] write(3, "1000", 4 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5061 [pid 5061] set_robust_list(0x555556477660, 24 [pid 5060] <... setpgid resumed>) = 0 [pid 5059] <... write resumed>) = 4 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] close(3 [pid 5061] <... set_robust_list resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] write(3, "1000", 4 [pid 5059] <... openat resumed>) = 3 [pid 5060] <... write resumed>) = 4 [pid 5061] <... prctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5061] setpgid(0, 0 [pid 5060] close(3 [pid 5059] <... openat resumed>) = 4 [pid 5061] <... setpgid resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] sendfile(4, 3, [88] [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5061] write(3, "1000", 4 [pid 5060] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5061] <... write resumed>) = 4 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5061] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5061] sendfile(4, 3, [88] [pid 5060] <... openat resumed>) = 4 [ 65.220639][ T5057] syz-executor223 (5057): drop_caches: 1 [ 65.233366][ T5058] syz-executor223 (5058): drop_caches: 1 [pid 5060] sendfile(4, 3, [88] [pid 5058] <... sendfile resumed> => [95], 7) = 7 [pid 5057] <... sendfile resumed> => [95], 7) = 7 [pid 5056] <... sendfile resumed> => [95], 7) = 7 [pid 5057] memfd_create("syzkaller", 0) = 5 [pid 5058] memfd_create("syzkaller", 0 [pid 5057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... memfd_create resumed>) = 5 [pid 5057] <... mmap resumed>) = 0x7ff2a0544000 [pid 5056] memfd_create("syzkaller", 0 [pid 5058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5056] <... memfd_create resumed>) = 5 [pid 5056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 65.266909][ T5056] syz-executor223 (5056): drop_caches: 1 [pid 5059] <... sendfile resumed> => [95], 7) = 7 [pid 5061] <... sendfile resumed> => [95], 7) = 7 [pid 5059] memfd_create("syzkaller", 0 [pid 5061] memfd_create("syzkaller", 0 [pid 5059] <... memfd_create resumed>) = 5 [pid 5061] <... memfd_create resumed>) = 5 [pid 5059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5059] <... mmap resumed>) = 0x7ff2a0544000 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] <... sendfile resumed> => [95], 7) = 7 [pid 5058] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5056] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5061] <... mmap resumed>) = 0x7ff2a0544000 [pid 5060] memfd_create("syzkaller", 0) = 5 [ 65.329378][ T5061] syz-executor223 (5061): drop_caches: 1 [ 65.337935][ T5059] syz-executor223 (5059): drop_caches: 1 [ 65.361426][ T5060] syz-executor223 (5060): drop_caches: 1 [pid 5060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5057] <... write resumed>) = 2097152 [pid 5059] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5057] munmap(0x7ff2a0544000, 138412032 [pid 5056] <... write resumed>) = 2097152 [pid 5056] munmap(0x7ff2a0544000, 138412032 [pid 5057] <... munmap resumed>) = 0 [pid 5056] <... munmap resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... write resumed>) = 2097152 [pid 5057] <... openat resumed>) = 6 [pid 5058] munmap(0x7ff2a0544000, 138412032 [pid 5057] ioctl(6, LOOP_SET_FD, 5 [pid 5061] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5058] <... munmap resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5057] ioctl(6, LOOP_CLR_FD [pid 5056] ioctl(6, LOOP_SET_FD, 5 [pid 5057] <... ioctl resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] ioctl(6, LOOP_CLR_FD) = 0 [pid 5057] ioctl(6, LOOP_SET_FD, 5 [pid 5060] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5057] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5057] close(6 [pid 5058] <... openat resumed>) = 6 [pid 5057] <... close resumed>) = 0 [pid 5056] ioctl(6, LOOP_SET_FD, 5 [pid 5058] ioctl(6, LOOP_SET_FD, 5 [pid 5057] close(5 [pid 5056] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] close(6 [pid 5058] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] <... close resumed>) = 0 [pid 5056] close(5 [pid 5058] ioctl(6, LOOP_CLR_FD) = 0 [pid 5057] <... close resumed>) = 0 [pid 5061] <... write resumed>) = 2097152 [pid 5060] <... write resumed>) = 2097152 [pid 5057] creat("./file1", 000) = 5 [pid 5061] munmap(0x7ff2a0544000, 138412032 [pid 5057] exit_group(0 [pid 5061] <... munmap resumed>) = 0 [pid 5058] ioctl(6, LOOP_SET_FD, 5 [pid 5057] <... exit_group resumed>) = ? [pid 5056] <... close resumed>) = 0 [pid 5060] munmap(0x7ff2a0544000, 138412032 [pid 5061] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5058] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5056] creat("./file1", 000 [pid 5058] close(6 [pid 5061] <... openat resumed>) = 6 [pid 5059] <... write resumed>) = 2097152 [pid 5058] <... close resumed>) = 0 [pid 5056] <... creat resumed>) = 5 [pid 5061] ioctl(6, LOOP_SET_FD, 5 [pid 5058] close(5 [pid 5056] exit_group(0) = ? [pid 5060] <... munmap resumed>) = 0 [pid 5059] munmap(0x7ff2a0544000, 138412032 [pid 5061] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5060] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5061] ioctl(6, LOOP_CLR_FD [pid 5060] <... openat resumed>) = 6 [pid 5059] <... munmap resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] +++ exited with 0 +++ [pid 5056] +++ exited with 0 +++ [pid 5061] <... ioctl resumed>) = 0 [pid 5060] ioctl(6, LOOP_SET_FD, 5 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5057, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5058] creat("./file1", 000 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5056, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5058] <... creat resumed>) = 5 [pid 5060] ioctl(6, LOOP_CLR_FD [pid 5059] <... openat resumed>) = 6 [pid 5058] exit_group(0 [pid 5061] ioctl(6, LOOP_SET_FD, 5 [pid 5060] <... ioctl resumed>) = 0 [pid 5059] ioctl(6, LOOP_SET_FD, 5 [pid 5058] <... exit_group resumed>) = ? [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5061] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5059] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5061] close(6 [pid 5059] ioctl(6, LOOP_CLR_FD [pid 5058] +++ exited with 0 +++ [pid 5036] <... openat resumed>) = 3 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5061] <... close resumed>) = 0 [pid 5059] <... ioctl resumed>) = 0 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5061] close(5 [pid 5060] ioctl(6, LOOP_SET_FD, 5 [pid 5036] <... ioctl resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] close(3 [pid 5029] <... openat resumed>) = 3 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5058, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5060] close(6 [pid 5036] <... close resumed>) = 0 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... ioctl resumed>) = 0 [pid 5028] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5062 attached [pid 5060] <... close resumed>) = 0 [pid 5059] ioctl(6, LOOP_SET_FD, 5 [pid 5029] close(3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5062] set_robust_list(0x555556477660, 24 [pid 5059] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5062 [pid 5029] <... close resumed>) = 0 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5060] close(5 [pid 5059] close(6 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] <... ioctl resumed>) = 0 [pid 5028] close(3 [pid 5059] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5059] close(5 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5063 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5063 attached ) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5064 [pid 5063] set_robust_list(0x555556477660, 24 [pid 5062] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5064 attached [pid 5063] <... set_robust_list resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5064] set_robust_list(0x555556477660, 24 [pid 5062] <... openat resumed>) = 3 [pid 5064] <... set_robust_list resumed>) = 0 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] <... prctl resumed>) = 0 [pid 5062] write(3, "1000", 4 [pid 5064] <... prctl resumed>) = 0 [pid 5063] setpgid(0, 0 [pid 5062] <... write resumed>) = 4 [pid 5064] setpgid(0, 0 [pid 5063] <... setpgid resumed>) = 0 [pid 5062] close(3 [pid 5060] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5064] <... setpgid resumed>) = 0 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... close resumed>) = 0 [pid 5061] <... close resumed>) = 0 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] <... openat resumed>) = 3 [pid 5062] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] creat("./file1", 000 [pid 5063] write(3, "1000", 4 [pid 5062] <... openat resumed>) = 3 [pid 5063] <... write resumed>) = 4 [pid 5062] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5061] <... creat resumed>) = 5 [pid 5060] creat("./file1", 000 [pid 5059] creat("./file1", 000 [pid 5063] close(3 [pid 5062] <... openat resumed>) = 4 [pid 5059] <... creat resumed>) = 5 [pid 5061] exit_group(0 [pid 5064] <... openat resumed>) = 3 [pid 5063] <... close resumed>) = 0 [pid 5062] sendfile(4, 3, [88] [pid 5061] <... exit_group resumed>) = ? [pid 5060] <... creat resumed>) = 5 [pid 5059] exit_group(0 [pid 5064] write(3, "1000", 4 [pid 5060] exit_group(0 [pid 5064] <... write resumed>) = 4 [pid 5064] close(3 [pid 5063] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5061] +++ exited with 0 +++ [pid 5060] <... exit_group resumed>) = ? [pid 5059] <... exit_group resumed>) = ? [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5064] <... close resumed>) = 0 [pid 5064] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5063] <... openat resumed>) = 3 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5064] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5031] <... openat resumed>) = 3 [pid 5064] <... openat resumed>) = 4 [pid 5063] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5064] sendfile(4, 3, [88] [pid 5063] <... openat resumed>) = 4 [pid 5031] <... ioctl resumed>) = 0 [pid 5060] +++ exited with 0 +++ [pid 5059] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5059, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5065 attached [pid 5031] close(3) = 0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5060, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5065] set_robust_list(0x555556477660, 24 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... set_robust_list resumed>) = 0 [pid 5063] sendfile(4, 3, [88] [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5065 [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] <... prctl resumed>) = 0 [pid 5065] setpgid(0, 0 [pid 5030] <... openat resumed>) = 3 [pid 5065] <... setpgid resumed>) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5066 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5030] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5066 attached [pid 5065] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5065] write(3, "1000", 4 [pid 5066] set_robust_list(0x555556477660, 24 [pid 5065] <... write resumed>) = 4 [pid 5030] <... close resumed>) = 0 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] close(3./strace-static-x86_64: Process 5067 attached [pid 5066] <... prctl resumed>) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5067 [pid 5066] setpgid(0, 0) = 0 [pid 5065] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] write(3, "1000", 4 [pid 5065] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5067] set_robust_list(0x555556477660, 24 [pid 5066] <... write resumed>) = 4 [pid 5067] <... set_robust_list resumed>) = 0 [pid 5066] close(3 [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] <... close resumed>) = 0 [pid 5067] <... prctl resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] <... openat resumed>) = 3 [pid 5067] setpgid(0, 0 [pid 5066] <... openat resumed>) = 3 [pid 5067] <... setpgid resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5067] <... openat resumed>) = 3 [pid 5066] sendfile(4, 3, [88] [pid 5065] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] write(3, "1000", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5067] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5067] sendfile(4, 3, [88] [pid 5065] <... openat resumed>) = 4 [ 65.884134][ T5062] syz-executor223 (5062): drop_caches: 1 [pid 5065] sendfile(4, 3, [88] [pid 5062] <... sendfile resumed> => [95], 7) = 7 [pid 5066] <... sendfile resumed> => [95], 7) = 7 [pid 5062] memfd_create("syzkaller", 0) = 5 [pid 5066] memfd_create("syzkaller", 0 [pid 5062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5064] <... sendfile resumed> => [95], 7) = 7 [pid 5067] <... sendfile resumed> => [95], 7) = 7 [pid 5066] <... memfd_create resumed>) = 5 [pid 5065] <... sendfile resumed> => [95], 7) = 7 [pid 5064] memfd_create("syzkaller", 0 [pid 5063] <... sendfile resumed> => [95], 7) = 7 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5065] memfd_create("syzkaller", 0 [pid 5064] <... memfd_create resumed>) = 5 [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5063] memfd_create("syzkaller", 0) = 5 [ 65.929018][ T5064] syz-executor223 (5064): drop_caches: 1 [ 65.933259][ T5066] syz-executor223 (5066): drop_caches: 1 [ 65.956348][ T5063] syz-executor223 (5063): drop_caches: 1 [ 65.958994][ T5067] syz-executor223 (5067): drop_caches: 1 [ 65.969960][ T5065] syz-executor223 (5065): drop_caches: 1 [pid 5067] memfd_create("syzkaller", 0 [pid 5065] <... memfd_create resumed>) = 5 [pid 5063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5063] <... mmap resumed>) = 0x7ff2a0544000 [pid 5067] <... memfd_create resumed>) = 5 [pid 5065] <... mmap resumed>) = 0x7ff2a0544000 [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5066] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5062] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5064] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5065] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5063] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5067] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5062] <... write resumed>) = 2097152 [pid 5066] <... write resumed>) = 2097152 [pid 5062] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5066] munmap(0x7ff2a0544000, 138412032 [pid 5062] <... openat resumed>) = 6 [pid 5062] ioctl(6, LOOP_SET_FD, 5 [pid 5066] <... munmap resumed>) = 0 [pid 5062] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5062] ioctl(6, LOOP_CLR_FD [pid 5066] <... openat resumed>) = 6 [pid 5062] <... ioctl resumed>) = 0 [pid 5066] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5066] ioctl(6, LOOP_CLR_FD) = 0 [pid 5062] ioctl(6, LOOP_SET_FD, 5 [pid 5063] <... write resumed>) = 2097152 [pid 5062] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] close(6 [pid 5067] <... write resumed>) = 2097152 [pid 5065] <... write resumed>) = 2097152 [pid 5063] munmap(0x7ff2a0544000, 138412032 [pid 5062] <... close resumed>) = 0 [pid 5066] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5066] close(6 [pid 5062] close(5 [pid 5066] <... close resumed>) = 0 [pid 5067] munmap(0x7ff2a0544000, 138412032 [pid 5066] close(5 [pid 5065] munmap(0x7ff2a0544000, 138412032 [pid 5064] <... write resumed>) = 2097152 [pid 5063] <... munmap resumed>) = 0 [pid 5067] <... munmap resumed>) = 0 [pid 5065] <... munmap resumed>) = 0 [pid 5064] munmap(0x7ff2a0544000, 138412032 [pid 5063] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5063] <... openat resumed>) = 6 [pid 5067] <... openat resumed>) = 6 [pid 5063] ioctl(6, LOOP_SET_FD, 5 [pid 5067] ioctl(6, LOOP_SET_FD, 5 [pid 5065] <... openat resumed>) = 6 [pid 5063] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] ioctl(6, LOOP_SET_FD, 5 [pid 5064] <... munmap resumed>) = 0 [pid 5063] ioctl(6, LOOP_CLR_FD [pid 5067] ioctl(6, LOOP_CLR_FD [pid 5065] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5063] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5065] ioctl(6, LOOP_CLR_FD [pid 5064] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... ioctl resumed>) = 0 [pid 5064] <... openat resumed>) = 6 [pid 5063] ioctl(6, LOOP_SET_FD, 5 [pid 5062] <... close resumed>) = 0 [pid 5064] ioctl(6, LOOP_SET_FD, 5 [pid 5063] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5063] close(6 [pid 5067] ioctl(6, LOOP_SET_FD, 5 [pid 5064] ioctl(6, LOOP_CLR_FD [pid 5063] <... close resumed>) = 0 [pid 5067] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5063] close(5 [pid 5065] ioctl(6, LOOP_SET_FD, 5 [pid 5067] close(6 [pid 5065] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] <... ioctl resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5065] close(6 [pid 5067] close(5 [pid 5065] <... close resumed>) = 0 [pid 5064] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5064] close(6 [pid 5065] close(5 [pid 5064] <... close resumed>) = 0 [pid 5064] close(5 [pid 5066] <... close resumed>) = 0 [pid 5062] creat("./file1", 000 [pid 5066] creat("./file1", 000 [pid 5062] <... creat resumed>) = 5 [pid 5066] <... creat resumed>) = 5 [pid 5062] exit_group(0) = ? [pid 5062] +++ exited with 0 +++ [pid 5066] exit_group(0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5062, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5066] <... exit_group resumed>) = ? [pid 5036] restart_syscall(<... resuming interrupted clone ...> [pid 5066] +++ exited with 0 +++ [pid 5036] <... restart_syscall resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5068 attached [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5068 [pid 5068] set_robust_list(0x555556477660, 24) = 0 [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setpgid(0, 0) = 0 [pid 5067] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5063] <... close resumed>) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5068] write(3, "1000", 4 [pid 5031] <... ioctl resumed>) = 0 [pid 5067] creat("./file1", 000 [pid 5063] creat("./file1", 000 [pid 5031] close(3) = 0 [pid 5063] <... creat resumed>) = 5 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached [pid 5068] <... write resumed>) = 4 [pid 5067] <... creat resumed>) = 5 [pid 5064] <... close resumed>) = 0 [pid 5063] exit_group(0 [pid 5068] close(3 [pid 5063] <... exit_group resumed>) = ? [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5069 [pid 5069] set_robust_list(0x555556477660, 24 [pid 5067] exit_group(0 [pid 5068] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5067] <... exit_group resumed>) = ? [pid 5065] <... close resumed>) = 0 [pid 5064] creat("./file1", 000 [pid 5063] +++ exited with 0 +++ [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5068] <... openat resumed>) = 4 [pid 5068] sendfile(4, 3, [88] [pid 5069] <... prctl resumed>) = 0 [pid 5067] +++ exited with 0 +++ [pid 5064] <... creat resumed>) = 5 [pid 5064] exit_group(0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5067, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5069] setpgid(0, 0 [pid 5064] <... exit_group resumed>) = ? [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... setpgid resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5064] +++ exited with 0 +++ [pid 5028] <... openat resumed>) = 3 [pid 5065] creat("./file1", 000 [pid 5069] <... openat resumed>) = 3 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5069] write(3, "1000", 4 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5069] <... write resumed>) = 4 [pid 5028] <... ioctl resumed>) = 0 [pid 5069] close(3 [pid 5028] close(3 [pid 5069] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] <... creat resumed>) = 5 [pid 5030] <... openat resumed>) = 3 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] exit_group(0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5065] <... exit_group resumed>) = ? [pid 5030] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5070 attached [pid 5069] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5070 [pid 5070] set_robust_list(0x555556477660, 24 [pid 5069] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5070] <... set_robust_list resumed>) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... openat resumed>) = 4 [pid 5065] +++ exited with 0 +++ [pid 5030] <... close resumed>) = 0 [pid 5070] <... prctl resumed>) = 0 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5065, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5070] setpgid(0, 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... setpgid resumed>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5034] <... openat resumed>) = 3 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5071 [pid 5029] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5034] <... ioctl resumed>) = 0 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5070] write(3, "1000", 4 [pid 5034] close(3 [pid 5070] <... write resumed>) = 4 [pid 5034] <... close resumed>) = 0 [pid 5070] close(3./strace-static-x86_64: Process 5071 attached [pid 5029] <... ioctl resumed>) = 0 [pid 5071] set_robust_list(0x555556477660, 24 [pid 5070] <... close resumed>) = 0 [pid 5029] close(3 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... close resumed>) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... openat resumed>) = 3 [pid 5069] sendfile(4, 3, [88] [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5073 ./strace-static-x86_64: Process 5073 attached [pid 5071] <... prctl resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5072 attached [pid 5073] set_robust_list(0x555556477660, 24 [pid 5071] setpgid(0, 0 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5071] <... setpgid resumed>) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] set_robust_list(0x555556477660, 24 [pid 5073] <... prctl resumed>) = 0 [pid 5073] setpgid(0, 0 [pid 5071] <... openat resumed>) = 3 [pid 5073] <... setpgid resumed>) = 0 [pid 5071] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... set_robust_list resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5072 [pid 5073] <... openat resumed>) = 3 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] sendfile(4, 3, [88] [pid 5072] <... prctl resumed>) = 0 [pid 5073] write(3, "1000", 4 [pid 5072] setpgid(0, 0 [pid 5073] <... write resumed>) = 4 [pid 5072] <... setpgid resumed>) = 0 [pid 5073] close(3) = 0 [pid 5071] <... write resumed>) = 4 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5071] close(3 [pid 5072] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5071] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 3 [pid 5072] write(3, "1000", 4 [pid 5073] sendfile(4, 3, [88] [pid 5071] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5072] <... write resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 5071] sendfile(4, 3, [88] [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5072] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5072] sendfile(4, 3, [88] [pid 5068] <... sendfile resumed> => [95], 7) = 7 [ 66.578851][ T5068] syz-executor223 (5068): drop_caches: 1 [ 66.611717][ T5071] syz-executor223 (5071): drop_caches: 1 [ 66.620881][ T5069] syz-executor223 (5069): drop_caches: 1 [pid 5068] memfd_create("syzkaller", 0) = 5 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5069] <... sendfile resumed> => [95], 7) = 7 [pid 5069] memfd_create("syzkaller", 0 [pid 5070] <... sendfile resumed> => [95], 7) = 7 [pid 5069] <... memfd_create resumed>) = 5 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5073] <... sendfile resumed> => [95], 7) = 7 [pid 5071] <... sendfile resumed> => [95], 7) = 7 [pid 5071] memfd_create("syzkaller", 0 [pid 5070] memfd_create("syzkaller", 0 [pid 5073] memfd_create("syzkaller", 0 [pid 5071] <... memfd_create resumed>) = 5 [ 66.630634][ T5073] syz-executor223 (5073): drop_caches: 1 [ 66.647521][ T5070] syz-executor223 (5070): drop_caches: 1 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5070] <... memfd_create resumed>) = 5 [pid 5073] <... memfd_create resumed>) = 5 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5070] <... mmap resumed>) = 0x7ff2a0544000 [pid 5072] <... sendfile resumed> => [95], 7) = 7 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5072] memfd_create("syzkaller", 0) = 5 [ 66.682417][ T5072] syz-executor223 (5072): drop_caches: 1 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5072] <... mmap resumed>) = 0x7ff2a0544000 [pid 5071] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5070] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5069] <... write resumed>) = 2097152 [pid 5069] munmap(0x7ff2a0544000, 138412032 [pid 5068] <... write resumed>) = 2097152 [pid 5072] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5069] <... munmap resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5069] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5069] ioctl(6, LOOP_CLR_FD) = 0 [pid 5069] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5069] close(6 [pid 5068] munmap(0x7ff2a0544000, 138412032 [pid 5069] <... close resumed>) = 0 [pid 5068] <... munmap resumed>) = 0 [pid 5069] close(5 [pid 5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5068] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5068] ioctl(6, LOOP_CLR_FD) = 0 [pid 5068] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5068] close(6) = 0 [pid 5073] <... write resumed>) = 2097152 [pid 5070] <... write resumed>) = 2097152 [pid 5071] <... write resumed>) = 2097152 [pid 5068] close(5 [pid 5070] munmap(0x7ff2a0544000, 138412032 [pid 5071] munmap(0x7ff2a0544000, 138412032 [pid 5070] <... munmap resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] <... munmap resumed>) = 0 [pid 5069] creat("./file1", 000 [pid 5070] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] <... openat resumed>) = 6 [pid 5069] <... creat resumed>) = 5 [pid 5070] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5070] ioctl(6, LOOP_CLR_FD) = 0 [pid 5069] exit_group(0 [pid 5072] <... write resumed>) = 2097152 [pid 5071] <... openat resumed>) = 6 [pid 5069] <... exit_group resumed>) = ? [pid 5071] ioctl(6, LOOP_SET_FD, 5 [pid 5070] ioctl(6, LOOP_SET_FD, 5 [pid 5071] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] ioctl(6, LOOP_CLR_FD [pid 5070] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] <... ioctl resumed>) = 0 [pid 5070] close(6 [pid 5073] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5070] <... close resumed>) = 0 [pid 5073] ioctl(6, LOOP_SET_FD, 5 [pid 5070] close(5 [pid 5073] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] ioctl(6, LOOP_SET_FD, 5 [pid 5073] ioctl(6, LOOP_CLR_FD [pid 5072] munmap(0x7ff2a0544000, 138412032 [pid 5069] +++ exited with 0 +++ [pid 5073] <... ioctl resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] close(6 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5071] <... close resumed>) = 0 [pid 5031] <... restart_syscall resumed>) = 0 [pid 5071] close(5 [pid 5072] <... munmap resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5073] close(6) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5073] close(5 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] creat("./file1", 000 [pid 5068] creat("./file1", 000 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5072] <... openat resumed>) = 6 [pid 5070] <... creat resumed>) = 5 [pid 5068] <... creat resumed>) = 5 [pid 5031] <... ioctl resumed>) = 0 [pid 5070] exit_group(0 [pid 5068] exit_group(0 [pid 5031] close(3 [pid 5072] ioctl(6, LOOP_SET_FD, 5 [pid 5070] <... exit_group resumed>) = ? [pid 5068] <... exit_group resumed>) = ? [pid 5031] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] <... close resumed>) = 0 [pid 5070] +++ exited with 0 +++ [pid 5068] +++ exited with 0 +++ [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] ioctl(6, LOOP_CLR_FD [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] <... ioctl resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- ./strace-static-x86_64: Process 5074 attached [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5074 [pid 5074] set_robust_list(0x555556477660, 24 [pid 5036] <... ioctl resumed>) = 0 [pid 5036] close(3 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5036] <... close resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5075 attached [pid 5074] setpgid(0, 0 [pid 5073] <... close resumed>) = 0 [pid 5072] ioctl(6, LOOP_SET_FD, 5 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5075 [pid 5028] <... openat resumed>) = 3 [pid 5074] <... setpgid resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5075] set_robust_list(0x555556477660, 24 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] close(6 [pid 5028] <... ioctl resumed>) = 0 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5028] close(3 [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5075] <... prctl resumed>) = 0 [pid 5072] close(5 [pid 5028] <... close resumed>) = 0 [pid 5075] setpgid(0, 0) = 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] creat("./file1", 000) = 5 [pid 5075] write(3, "1000", 4 [pid 5071] exit_group(0 [pid 5075] <... write resumed>) = 4 [pid 5071] <... exit_group resumed>) = ? [pid 5075] close(3 [pid 5071] +++ exited with 0 +++ [pid 5075] <... close resumed>) = 0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5075] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] write(3, "1000", 4 [pid 5073] creat("./file1", 000 [pid 5075] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5075] sendfile(4, 3, [88] [pid 5074] <... write resumed>) = 4 [pid 5073] <... creat resumed>) = 5 ./strace-static-x86_64: Process 5076 attached [pid 5074] close(3 [pid 5073] exit_group(0 [pid 5076] set_robust_list(0x555556477660, 24 [pid 5074] <... close resumed>) = 0 [pid 5073] <... exit_group resumed>) = ? [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] +++ exited with 0 +++ [pid 5072] <... close resumed>) = 0 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... openat resumed>) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5076] <... prctl resumed>) = 0 [pid 5030] <... ioctl resumed>) = 0 [pid 5076] setpgid(0, 0 [pid 5030] close(3 [pid 5076] <... setpgid resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5076 ./strace-static-x86_64: Process 5077 attached [pid 5076] write(3, "1000", 4 [pid 5074] <... openat resumed>) = 4 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5077 [pid 5076] <... write resumed>) = 4 [pid 5074] sendfile(4, 3, [88] [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] close(3 [pid 5029] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5077] set_robust_list(0x555556477660, 24 [pid 5076] <... openat resumed>) = 3 [pid 5029] <... ioctl resumed>) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5029] close(3 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... openat resumed>) = 4 [pid 5072] creat("./file1", 000 [pid 5029] <... close resumed>) = 0 [pid 5077] <... prctl resumed>) = 0 [pid 5076] sendfile(4, 3, [88] [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached [pid 5077] setpgid(0, 0 [pid 5072] <... creat resumed>) = 5 [pid 5078] set_robust_list(0x555556477660, 24 [pid 5077] <... setpgid resumed>) = 0 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... openat resumed>) = 3 [pid 5078] <... prctl resumed>) = 0 [pid 5077] write(3, "1000", 4 [pid 5078] setpgid(0, 0 [pid 5077] <... write resumed>) = 4 [pid 5078] <... setpgid resumed>) = 0 [pid 5077] close(3 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5078 [pid 5078] write(3, "1000", 4 [pid 5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5078] <... write resumed>) = 4 [pid 5077] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5078] close(3 [pid 5077] sendfile(4, 3, [88] [pid 5072] exit_group(0) = ? [pid 5078] <... close resumed>) = 0 [pid 5072] +++ exited with 0 +++ [pid 5078] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5078] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5078] sendfile(4, 3, [88] [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached [pid 5079] set_robust_list(0x555556477660, 24 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5079 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5079] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 67.163543][ T5075] syz-executor223 (5075): drop_caches: 1 [ 67.163697][ T5074] syz-executor223 (5074): drop_caches: 1 [pid 5079] sendfile(4, 3, [88] [pid 5078] <... sendfile resumed> => [95], 7) = 7 [pid 5075] <... sendfile resumed> => [95], 7) = 7 [pid 5075] memfd_create("syzkaller", 0) = 5 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 67.207705][ T5078] syz-executor223 (5078): drop_caches: 1 [ 67.221491][ T5077] syz-executor223 (5077): drop_caches: 1 [pid 5078] memfd_create("syzkaller", 0) = 5 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... sendfile resumed> => [95], 7) = 7 [pid 5078] <... mmap resumed>) = 0x7ff2a0544000 [pid 5077] <... sendfile resumed> => [95], 7) = 7 [pid 5077] memfd_create("syzkaller", 0 [pid 5074] memfd_create("syzkaller", 0 [pid 5077] <... memfd_create resumed>) = 5 [pid 5074] <... memfd_create resumed>) = 5 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... mmap resumed>) = 0x7ff2a0544000 [pid 5074] <... mmap resumed>) = 0x7ff2a0544000 [pid 5076] <... sendfile resumed> => [95], 7) = 7 [pid 5076] memfd_create("syzkaller", 0 [pid 5075] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5076] <... memfd_create resumed>) = 5 [ 67.314959][ T5076] syz-executor223 (5076): drop_caches: 1 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5079] <... sendfile resumed> => [95], 7) = 7 [pid 5079] memfd_create("syzkaller", 0 [pid 5078] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5074] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5079] <... memfd_create resumed>) = 5 [ 67.390770][ T5079] syz-executor223 (5079): drop_caches: 1 [pid 5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5075] <... write resumed>) = 2097152 [pid 5076] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5075] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5078] <... write resumed>) = 2097152 [pid 5075] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5075] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5077] <... write resumed>) = 2097152 [pid 5078] munmap(0x7ff2a0544000, 138412032 [pid 5075] ioctl(6, LOOP_CLR_FD) = 0 [pid 5075] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5075] close(6 [pid 5078] <... munmap resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5075] close(5 [pid 5078] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] <... openat resumed>) = 6 [pid 5077] munmap(0x7ff2a0544000, 138412032 [pid 5076] <... write resumed>) = 2097152 [pid 5074] <... write resumed>) = 2097152 [pid 5078] ioctl(6, LOOP_SET_FD, 5 [pid 5074] munmap(0x7ff2a0544000, 138412032 [pid 5078] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] ioctl(6, LOOP_CLR_FD) = 0 [pid 5077] <... munmap resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5074] <... munmap resumed>) = 0 [pid 5078] ioctl(6, LOOP_SET_FD, 5 [pid 5074] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5074] <... openat resumed>) = 6 [pid 5074] ioctl(6, LOOP_SET_FD, 5 [pid 5075] creat("./file1", 000 [pid 5078] close(6 [pid 5074] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] <... close resumed>) = 0 [pid 5074] ioctl(6, LOOP_CLR_FD) = 0 [pid 5074] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5074] close(6) = 0 [pid 5074] close(5 [pid 5078] close(5 [pid 5077] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... close resumed>) = 0 [pid 5074] creat("./file1", 000 [pid 5076] munmap(0x7ff2a0544000, 138412032 [pid 5077] <... openat resumed>) = 6 [pid 5077] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5076] <... munmap resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5076] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5076] ioctl(6, LOOP_CLR_FD) = 0 [pid 5077] ioctl(6, LOOP_CLR_FD) = 0 [pid 5075] <... creat resumed>) = 5 [pid 5074] <... creat resumed>) = 5 [pid 5079] <... write resumed>) = 2097152 [pid 5076] ioctl(6, LOOP_SET_FD, 5 [pid 5075] exit_group(0 [pid 5074] exit_group(0 [pid 5079] munmap(0x7ff2a0544000, 138412032 [pid 5078] <... close resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5075] <... exit_group resumed>) = ? [pid 5074] <... exit_group resumed>) = ? [pid 5078] creat("./file1", 000 [pid 5076] close(6 [pid 5075] +++ exited with 0 +++ [pid 5074] +++ exited with 0 +++ [pid 5077] ioctl(6, LOOP_SET_FD, 5 [pid 5076] <... close resumed>) = 0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5076] close(5 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5077] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... munmap resumed>) = 0 [pid 5078] <... creat resumed>) = 5 [pid 5077] close(6 [pid 5031] <... restart_syscall resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] exit_group(0) = ? [pid 5036] <... openat resumed>) = 3 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x555556477660, 24 [pid 5077] <... close resumed>) = 0 [pid 5077] close(5 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... openat resumed>) = 6 [pid 5078] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5080] write(3, "1000", 4 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5080] <... write resumed>) = 4 [pid 5079] ioctl(6, LOOP_SET_FD, 5 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5080] close(3 [pid 5079] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] creat("./file1", 000 [pid 5036] <... ioctl resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5076] <... creat resumed>) = 5 [pid 5036] close(3 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5079] ioctl(6, LOOP_CLR_FD [pid 5029] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5076] exit_group(0 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5079] <... ioctl resumed>) = 0 [pid 5036] <... close resumed>) = 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5076] <... exit_group resumed>) = ? [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] close(3 [pid 5080] sendfile(4, 3, [88] [pid 5076] +++ exited with 0 +++ [pid 5029] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- ./strace-static-x86_64: Process 5082 attached ./strace-static-x86_64: Process 5081 attached [pid 5079] ioctl(6, LOOP_SET_FD, 5 [pid 5028] restart_syscall(<... resuming interrupted clone ...> [pid 5082] set_robust_list(0x555556477660, 24 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5082 [pid 5028] <... restart_syscall resumed>) = 0 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] close(6 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5081] set_robust_list(0x555556477660, 24 [pid 5079] <... close resumed>) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5079] close(5 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5082] write(3, "1000", 4 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5028] <... ioctl resumed>) = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... write resumed>) = 4 [pid 5081] <... prctl resumed>) = 0 [pid 5082] close(3 [pid 5081] setpgid(0, 0 [pid 5082] <... close resumed>) = 0 [pid 5081] <... setpgid resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5081] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x555556477660, 24 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5083 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5081 [pid 5083] <... openat resumed>) = 3 [pid 5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5083] write(3, "1000", 4 [pid 5082] <... openat resumed>) = 4 [pid 5081] <... openat resumed>) = 4 [pid 5083] <... write resumed>) = 4 [pid 5082] sendfile(4, 3, [88] [pid 5081] sendfile(4, 3, [88] [pid 5083] close(3) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5079] creat("./file1", 000 [pid 5077] creat("./file1", 000) = 5 [pid 5077] exit_group(0 [pid 5079] <... creat resumed>) = 5 [pid 5077] <... exit_group resumed>) = ? [pid 5083] sendfile(4, 3, [88] [pid 5079] exit_group(0 [pid 5077] +++ exited with 0 +++ [pid 5079] <... exit_group resumed>) = ? [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5079] +++ exited with 0 +++ [pid 5030] close(3 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5030] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached , child_tidptr=0x555556477650) = 5084 [pid 5084] set_robust_list(0x555556477660, 24) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] <... setpgid resumed>) = 0 [pid 5034] <... openat resumed>) = 3 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5084] write(3, "1000", 4 [pid 5034] <... ioctl resumed>) = 0 [pid 5084] <... write resumed>) = 4 [pid 5034] close(3 [pid 5084] close(3 [pid 5034] <... close resumed>) = 0 [pid 5084] <... close resumed>) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5085 attached [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5085 [pid 5085] set_robust_list(0x555556477660, 24 [pid 5084] <... openat resumed>) = 3 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5085] setpgid(0, 0) = 0 [pid 5084] sendfile(4, 3, [88] [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1000", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 67.883912][ T5081] syz-executor223 (5081): drop_caches: 1 [ 67.905279][ T5082] syz-executor223 (5082): drop_caches: 1 [ 67.914119][ T5080] syz-executor223 (5080): drop_caches: 1 [pid 5085] sendfile(4, 3, [88] [pid 5082] <... sendfile resumed> => [95], 7) = 7 [pid 5081] <... sendfile resumed> => [95], 7) = 7 [pid 5080] <... sendfile resumed> => [95], 7) = 7 [pid 5082] memfd_create("syzkaller", 0 [pid 5081] memfd_create("syzkaller", 0) = 5 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5080] memfd_create("syzkaller", 0 [pid 5082] <... memfd_create resumed>) = 5 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5080] <... memfd_create resumed>) = 5 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 67.931820][ T5083] syz-executor223 (5083): drop_caches: 1 [pid 5083] <... sendfile resumed> => [95], 7) = 7 [pid 5083] memfd_create("syzkaller", 0) = 5 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5084] <... sendfile resumed> => [95], 7) = 7 [pid 5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5082] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5081] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5084] memfd_create("syzkaller", 0 [pid 5085] <... sendfile resumed> => [95], 7) = 7 [pid 5084] <... memfd_create resumed>) = 5 [ 68.056658][ T5084] syz-executor223 (5084): drop_caches: 1 [ 68.081928][ T5085] syz-executor223 (5085): drop_caches: 1 [pid 5085] memfd_create("syzkaller", 0 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] <... memfd_create resumed>) = 5 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5084] <... mmap resumed>) = 0x7ff2a0544000 [pid 5083] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5081] <... write resumed>) = 2097152 [pid 5082] <... write resumed>) = 2097152 [pid 5081] munmap(0x7ff2a0544000, 138412032 [pid 5080] <... write resumed>) = 2097152 [pid 5081] <... munmap resumed>) = 0 [pid 5080] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5082] munmap(0x7ff2a0544000, 138412032 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5080] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5082] <... munmap resumed>) = 0 [pid 5081] <... openat resumed>) = 6 [pid 5080] <... openat resumed>) = 6 [pid 5081] ioctl(6, LOOP_SET_FD, 5 [pid 5080] ioctl(6, LOOP_SET_FD, 5 [pid 5081] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] ioctl(6, LOOP_CLR_FD [pid 5080] ioctl(6, LOOP_CLR_FD [pid 5081] <... ioctl resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5080] <... ioctl resumed>) = 0 [pid 5082] <... openat resumed>) = 6 [pid 5082] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5082] ioctl(6, LOOP_CLR_FD) = 0 [pid 5081] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5080] ioctl(6, LOOP_SET_FD, 5 [pid 5081] close(6 [pid 5080] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5083] <... write resumed>) = 2097152 [pid 5081] <... close resumed>) = 0 [pid 5080] close(6 [pid 5082] ioctl(6, LOOP_SET_FD, 5 [pid 5081] close(5 [pid 5080] <... close resumed>) = 0 [pid 5082] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] close(6 [pid 5080] close(5 [pid 5083] munmap(0x7ff2a0544000, 138412032 [pid 5082] <... close resumed>) = 0 [pid 5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5082] close(5 [pid 5083] <... munmap resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5082] <... close resumed>) = 0 [pid 5081] creat("./file1", 000 [pid 5080] <... close resumed>) = 0 [pid 5081] <... creat resumed>) = 5 [pid 5083] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5083] ioctl(6, LOOP_CLR_FD [pid 5084] <... write resumed>) = 2097152 [pid 5081] exit_group(0 [pid 5080] creat("./file1", 000 [pid 5083] <... ioctl resumed>) = 0 [pid 5080] <... creat resumed>) = 5 [pid 5083] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5082] creat("./file1", 000 [pid 5081] <... exit_group resumed>) = ? [pid 5083] close(6) = 0 [pid 5083] close(5 [pid 5082] <... creat resumed>) = 5 [pid 5081] +++ exited with 0 +++ [pid 5080] exit_group(0) = ? [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5084] munmap(0x7ff2a0544000, 138412032 [pid 5080] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5084] <... munmap resumed>) = 0 [pid 5082] exit_group(0 [pid 5036] <... openat resumed>) = 3 [pid 5082] <... exit_group resumed>) = ? [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5084] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5082] +++ exited with 0 +++ [pid 5036] close(3 [pid 5031] <... openat resumed>) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5036] <... close resumed>) = 0 [pid 5031] <... ioctl resumed>) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] close(3 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5031] <... close resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5087 attached ) = 0 [pid 5087] set_robust_list(0x555556477660, 24 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5087 [pid 5029] close(3 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5088 [pid 5029] <... close resumed>) = 0 ./strace-static-x86_64: Process 5088 attached [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... write resumed>) = 2097152 [pid 5084] <... openat resumed>) = 6 [pid 5083] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] set_robust_list(0x555556477660, 24 [pid 5087] <... prctl resumed>) = 0 [pid 5085] munmap(0x7ff2a0544000, 138412032 [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] setpgid(0, 0 [pid 5084] ioctl(6, LOOP_CLR_FD) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5088] setpgid(0, 0./strace-static-x86_64: Process 5089 attached ) = 0 [pid 5087] <... setpgid resumed>) = 0 [pid 5085] <... munmap resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5089 [pid 5089] set_robust_list(0x555556477660, 24 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] ioctl(6, LOOP_SET_FD, 5 [pid 5083] creat("./file1", 000 [pid 5088] <... openat resumed>) = 3 [pid 5084] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] write(3, "1000", 4 [pid 5087] <... openat resumed>) = 3 [pid 5085] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] close(6 [pid 5083] <... creat resumed>) = 5 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... write resumed>) = 4 [pid 5087] write(3, "1000", 4 [pid 5084] <... close resumed>) = 0 [pid 5089] <... prctl resumed>) = 0 [pid 5088] close(3 [pid 5087] <... write resumed>) = 4 [pid 5085] <... openat resumed>) = 6 [pid 5084] close(5 [pid 5083] exit_group(0 [pid 5089] setpgid(0, 0 [pid 5088] <... close resumed>) = 0 [pid 5087] close(3 [pid 5085] ioctl(6, LOOP_SET_FD, 5 [pid 5089] <... setpgid resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5087] <... close resumed>) = 0 [pid 5085] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] write(3, "1000", 4 [pid 5088] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] ioctl(6, LOOP_CLR_FD [pid 5089] <... write resumed>) = 4 [pid 5087] <... openat resumed>) = 3 [pid 5085] <... ioctl resumed>) = 0 [pid 5083] <... exit_group resumed>) = ? [pid 5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5083] +++ exited with 0 +++ [pid 5089] close(3 [pid 5088] <... openat resumed>) = 4 [pid 5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5089] <... close resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5088] sendfile(4, 3, [88] [pid 5028] <... openat resumed>) = 3 [pid 5089] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3 [pid 5085] ioctl(6, LOOP_SET_FD, 5 [pid 5028] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... openat resumed>) = 4 [pid 5089] sendfile(4, 3, [88] [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5090 [pid 5085] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] close(6 [pid 5087] <... openat resumed>) = 4 [pid 5087] sendfile(4, 3, [88] [pid 5085] <... close resumed>) = 0 [pid 5085] close(5) = 0 [pid 5085] creat("./file1", 000./strace-static-x86_64: Process 5090 attached [pid 5084] <... close resumed>) = 0 [pid 5090] set_robust_list(0x555556477660, 24) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5084] creat("./file1", 000 [pid 5090] close(3) = 0 [pid 5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] <... creat resumed>) = 5 [pid 5090] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 68.469676][ T12] [ 68.472072][ T12] ====================================================== [ 68.479125][ T12] WARNING: possible circular locking dependency detected [ 68.486156][ T12] 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #0 Not tainted [ 68.493180][ T12] ------------------------------------------------------ [ 68.500216][ T12] kworker/u4:1/12 is trying to acquire lock: [ 68.506201][ T12] ffff888075eb0940 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x14cb/0x29c0 [ 68.515218][ T12] [ 68.515218][ T12] but task is already holding lock: [ 68.522605][ T12] ffff888075eb6490 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630 [ 68.531685][ T12] [ 68.531685][ T12] which lock already depends on the new lock. [ 68.531685][ T12] [ 68.542392][ T12] [ 68.542392][ T12] the existing dependency chain (in reverse order) is: [ 68.551455][ T12] [ 68.551455][ T12] -> #1 (&ni->mrec_lock){+.+.}-{3:3}: [ 68.559134][ T12] __mutex_lock+0x136/0xd60 [ 68.564186][ T12] map_mft_record+0x4c/0x630 [ 68.569322][ T12] ntfs_truncate+0x267/0x2880 [ 68.571226][ T5087] syz-executor223 (5087): drop_caches: 1 [ 68.574516][ T12] ntfs_setattr+0x329/0x400 [ 68.574533][ T12] notify_change+0xb99/0xe60 [ 68.574550][ T12] do_truncate+0x220/0x300 [ 68.574566][ T12] path_openat+0x2959/0x3180 [ 68.574580][ T12] do_filp_open+0x234/0x490 [ 68.574593][ T12] do_sys_openat2+0x13e/0x1d0 [ 68.588562][ T5089] syz-executor223 (5089): drop_caches: 1 [ 68.590309][ T12] __x64_sys_creat+0x123/0x160 [ 68.619937][ T5088] syz-executor223 (5088): drop_caches: 1 [ 68.621949][ T12] do_syscall_64+0x41/0xc0 [ 68.632572][ T12] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 68.639030][ T12] [ 68.639030][ T12] -> #0 (&rl->lock){++++}-{3:3}: [ 68.646242][ T12] __lock_acquire+0x39ff/0x7f70 [ 68.651611][ T12] lock_acquire+0x1e3/0x520 [ 68.656651][ T12] down_read+0xb1/0xa40 [ 68.661532][ T12] ntfs_read_folio+0x14cb/0x29c0 [ 68.667021][ T12] filemap_read_folio+0x19c/0x770 [ 68.672644][ T12] do_read_cache_folio+0x134/0x810 [ 68.678269][ T12] do_read_cache_page+0x30/0x210 [ 68.683836][ T12] ntfs_sync_mft_mirror+0x25f/0x1ad0 [ 68.691764][ T12] write_mft_record_nolock+0x1155/0x18d0 [ 68.697913][ T12] write_mft_record+0x149/0x310 [ 68.703270][ T12] __ntfs_write_inode+0x703/0xbb0 [ 68.708847][ T12] __writeback_single_inode+0x69b/0xfa0 [ 68.714900][ T12] writeback_sb_inodes+0x8e3/0x1210 [ 68.720609][ T12] __writeback_inodes_wb+0x11b/0x260 [ 68.726399][ T12] wb_writeback+0x461/0xc60 [ 68.731494][ T12] wb_workfn+0xc6f/0xff0 [ 68.736284][ T12] process_scheduled_works+0x90f/0x1400 [ 68.742535][ T12] worker_thread+0xa5f/0xff0 [ 68.747736][ T12] kthread+0x2d3/0x370 [ 68.752399][ T12] ret_from_fork+0x48/0x80 [ 68.757349][ T12] ret_from_fork_asm+0x11/0x20 [ 68.762645][ T12] [ 68.762645][ T12] other info that might help us debug this: [ 68.762645][ T12] [ 68.772862][ T12] Possible unsafe locking scenario: [ 68.772862][ T12] [ 68.780834][ T12] CPU0 CPU1 [ 68.786205][ T12] ---- ---- [ 68.791564][ T12] lock(&ni->mrec_lock); [ 68.795890][ T12] lock(&rl->lock); [ 68.802389][ T12] lock(&ni->mrec_lock); [ 68.809225][ T12] rlock(&rl->lock); [ 68.813196][ T12] [ 68.813196][ T12] *** DEADLOCK *** [ 68.813196][ T12] [ 68.821325][ T12] 4 locks held by kworker/u4:1/12: [ 68.826419][ T12] #0: ffff888018a6d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 [ 68.838000][ T12] #1: ffffc90000117d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 [ 68.850513][ T12] #2: ffff88801fee40e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x22/0xf0 [ 68.861073][ T12] #3: ffff888075eb6490 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630 [ 68.870466][ T12] [ 68.870466][ T12] stack backtrace: [ 68.876426][ T12] CPU: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #0 [ 68.886480][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 68.896699][ T12] Workqueue: writeback wb_workfn (flush-7:5) [ 68.902855][ T12] Call Trace: [ 68.906211][ T12] [ 68.909132][ T12] dump_stack_lvl+0x1e7/0x2d0 [ 68.913801][ T12] ? nf_tcp_handle_invalid+0x650/0x650 [ 68.919254][ T12] ? print_circular_bug+0x12b/0x1a0 [ 68.924445][ T12] check_noncircular+0x375/0x4a0 [ 68.929377][ T12] ? print_deadlock_bug+0x600/0x600 [ 68.934562][ T12] ? lockdep_lock+0x123/0x2b0 [ 68.939230][ T12] ? mark_lock+0x29c/0x340 [ 68.943633][ T12] ? _find_first_zero_bit+0xd4/0x100 [ 68.948911][ T12] __lock_acquire+0x39ff/0x7f70 [ 68.953768][ T12] ? verify_lock_unused+0x140/0x140 [ 68.960267][ T12] ? do_read_cache_folio+0x134/0x810 [ 68.965541][ T12] ? verify_lock_unused+0x140/0x140 [ 68.970726][ T12] ? write_mft_record+0x149/0x310 [ 68.975741][ T12] ? verify_lock_unused+0x140/0x140 [ 68.981024][ T12] ? __writeback_inodes_wb+0x11b/0x260 [ 68.986728][ T12] ? wb_workfn+0xc6f/0xff0 [ 68.991135][ T12] ? process_scheduled_works+0x90f/0x1400 [ 68.996843][ T12] ? worker_thread+0xa5f/0xff0 [ 69.001594][ T12] ? ret_from_fork+0x48/0x80 [ 69.006262][ T12] ? ret_from_fork_asm+0x11/0x20 [ 69.011191][ T12] lock_acquire+0x1e3/0x520 [ 69.015682][ T12] ? ntfs_read_folio+0x14cb/0x29c0 [ 69.020817][ T12] ? read_lock_is_recursive+0x20/0x20 [ 69.026181][ T12] ? __might_sleep+0xc0/0xc0 [ 69.030762][ T12] ? mark_lock+0x9a/0x340 [ 69.035082][ T12] down_read+0xb1/0xa40 [ 69.039932][ T12] ? ntfs_read_folio+0x14cb/0x29c0 [ 69.045036][ T12] ? print_irqtrace_events+0x220/0x220 [ 69.050484][ T12] ? __down_common+0x7a0/0x7a0 [ 69.055241][ T12] ? _raw_read_unlock_irqrestore+0x8f/0x140 [ 69.061121][ T12] ? lockdep_hardirqs_on+0x98/0x140 [ 69.066308][ T12] ? _raw_read_unlock_irqrestore+0xdd/0x140 [ 69.072184][ T12] ? _raw_read_unlock+0x40/0x40 [ 69.077020][ T12] ? do_raw_spin_unlock+0x13b/0x8b0 [ 69.082211][ T12] ntfs_read_folio+0x14cb/0x29c0 [ 69.087152][ T12] ? ntfs_writepage+0x1ab0/0x1ab0 [ 69.092176][ T12] ? folio_add_lru+0x9d0/0x9d0 [ 69.096931][ T12] ? folio_add_lru+0x4b2/0x9d0 [ 69.101765][ T12] ? folio_add_lru+0x27b/0x9d0 [ 69.106516][ T12] filemap_read_folio+0x19c/0x770 [ 69.111530][ T12] ? ntfs_writepage+0x1ab0/0x1ab0 [ 69.116656][ T12] ? maybe_unlock_mmap_for_io+0xe0/0xe0 [ 69.122221][ T12] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 69.129325][ T12] do_read_cache_folio+0x134/0x810 [ 69.134434][ T12] ? ntfs_writepage+0x1ab0/0x1ab0 [ 69.140321][ T12] do_read_cache_page+0x30/0x210 [ 69.145684][ T12] ntfs_sync_mft_mirror+0x25f/0x1ad0 [ 69.151393][ T12] ? submit_bio_noacct_nocheck+0xa2f/0xc60 [ 69.157278][ T12] ? should_fail_request+0x80/0x80 [ 69.162464][ T12] ? __mark_mft_record_dirty+0x180/0x180 [ 69.168523][ T12] write_mft_record_nolock+0x1155/0x18d0 [ 69.174940][ T12] ? ntfs_unmap_page+0x260/0x260 [ 69.179956][ T12] ? lockdep_hardirqs_on+0x98/0x140 [ 69.185235][ T12] write_mft_record+0x149/0x310 [ 69.190192][ T12] __ntfs_write_inode+0x703/0xbb0 [ 69.195228][ T12] __writeback_single_inode+0x69b/0xfa0 [ 69.200959][ T12] writeback_sb_inodes+0x8e3/0x1210 [ 69.206264][ T12] ? queue_io+0x570/0x570 [ 69.210700][ T12] ? do_raw_spin_lock+0x14d/0x3a0 [ 69.215894][ T12] __writeback_inodes_wb+0x11b/0x260 [ 69.221258][ T12] wb_writeback+0x461/0xc60 [ 69.225753][ T12] ? percpu_ref_tryget+0x260/0x260 [ 69.230862][ T12] wb_workfn+0xc6f/0xff0 [ 69.235107][ T12] ? inode_wait_for_writeback+0x290/0x290 [ 69.241007][ T12] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 69.246987][ T12] ? print_irqtrace_events+0x220/0x220 [ 69.252440][ T12] ? process_scheduled_works+0x825/0x1400 [ 69.258150][ T12] process_scheduled_works+0x90f/0x1400 [ 69.263711][ T12] ? assign_work+0x3d0/0x3d0 [ 69.268482][ T12] ? assign_work+0x364/0x3d0 [pid 5085] exit_group(0 [pid 5090] sendfile(4, 3, [88] [pid 5089] <... sendfile resumed> => [95], 7) = 7 [pid 5088] <... sendfile resumed> => [95], 7) = 7 [pid 5087] <... sendfile resumed> => [95], 7) = 7 [pid 5085] <... exit_group resumed>) = ? [pid 5084] <... creat resumed>) = 5 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5087] memfd_create("syzkaller", 0 [pid 5085] +++ exited with 0 +++ [pid 5084] exit_group(0 [pid 5088] <... memfd_create resumed>) = 5 [pid 5087] <... memfd_create resumed>) = 5 [pid 5084] <... exit_group resumed>) = ? [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] +++ exited with 0 +++ [pid 5034] restart_syscall(<... resuming interrupted clone ...> [pid 5088] <... mmap resumed>) = 0x7ff2a0544000 [ 69.273078][ T12] worker_thread+0xa5f/0xff0 [ 69.277679][ T12] kthread+0x2d3/0x370 [ 69.281744][ T12] ? pr_cont_work+0x5e0/0x5e0 [ 69.286603][ T12] ? kthread_blkcg+0xd0/0xd0 [ 69.291199][ T12] ret_from_fork+0x48/0x80 [ 69.295618][ T12] ? kthread_blkcg+0xd0/0xd0 [ 69.300204][ T12] ret_from_fork_asm+0x11/0x20 [ 69.304963][ T12] [pid 5087] <... mmap resumed>) = 0x7ff2a0544000 [pid 5034] <... restart_syscall resumed>) = 0 [pid 5089] <... memfd_create resumed>) = 5 [pid 5088] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5089] <... mmap resumed>) = 0x7ff2a0544000 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5030] <... restart_syscall resumed>) = 0 [pid 5034] <... openat resumed>) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5034] close(3 [pid 5030] <... openat resumed>) = 3 [pid 5034] <... close resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5091 [pid 5030] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5092 [pid 5090] <... sendfile resumed> => [95], 7) = 7 ./strace-static-x86_64: Process 5092 attached [pid 5090] memfd_create("syzkaller", 0 [pid 5092] set_robust_list(0x555556477660, 24 [pid 5090] <... memfd_create resumed>) = 5 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5091 attached ) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5091] set_robust_list(0x555556477660, 24 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5091] setpgid(0, 0) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5091] write(3, "1000", 4) = 4 [pid 5091] close(3) = 0 [pid 5091] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5091] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 69.346149][ T5090] syz-executor223 (5090): drop_caches: 1 [pid 5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5091] <... openat resumed>) = 4 [pid 5090] <... write resumed>) = 2097152 [pid 5088] <... write resumed>) = 2097152 [pid 5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5092] sendfile(4, 3, [88] [pid 5091] sendfile(4, 3, [88] [pid 5090] munmap(0x7ff2a0544000, 138412032 [pid 5088] munmap(0x7ff2a0544000, 138412032 [pid 5090] <... munmap resumed>) = 0 [pid 5088] <... munmap resumed>) = 0 [pid 5089] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5088] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5088] ioctl(6, LOOP_SET_FD, 5 [pid 5090] <... openat resumed>) = 6 [pid 5088] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] ioctl(6, LOOP_SET_FD, 5 [pid 5088] ioctl(6, LOOP_CLR_FD [pid 5090] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... ioctl resumed>) = 0 [pid 5090] ioctl(6, LOOP_CLR_FD) = 0 [pid 5088] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5088] close(6 [pid 5090] ioctl(6, LOOP_SET_FD, 5 [pid 5088] <... close resumed>) = 0 [pid 5090] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] close(5 [pid 5090] close(6) = 0 [pid 5090] close(5 [pid 5089] <... write resumed>) = 2097152 [pid 5090] <... close resumed>) = 0 [pid 5090] creat("./file1", 000 [pid 5088] <... close resumed>) = 0 [pid 5090] <... creat resumed>) = 5 [pid 5089] munmap(0x7ff2a0544000, 138412032 [pid 5090] exit_group(0) = ? [pid 5088] creat("./file1", 000) = 5 [pid 5088] exit_group(0) = ? [pid 5090] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5028] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x555556477660, 24) = 0 [pid 5088] +++ exited with 0 +++ [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5093 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] setpgid(0, 0) = 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1000", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5093] sendfile(4, 3, [88] [pid 5089] <... munmap resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5089] ioctl(6, LOOP_SET_FD, 5 [pid 5087] <... write resumed>) = 2097152 [pid 5089] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] ioctl(6, LOOP_CLR_FD) = 0 [pid 5087] munmap(0x7ff2a0544000, 138412032 [pid 5089] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5089] close(6) = 0 [pid 5089] close(5 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5091] <... sendfile resumed> => [95], 7) = 7 [pid 5087] <... munmap resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5087] ioctl(6, LOOP_SET_FD, 5 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5087] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5087] ioctl(6, LOOP_CLR_FD [pid 5091] memfd_create("syzkaller", 0 [pid 5036] <... ioctl resumed>) = 0 [pid 5092] <... sendfile resumed> => [95], 7) = 7 [pid 5091] <... memfd_create resumed>) = 5 [pid 5087] <... ioctl resumed>) = 0 [pid 5036] close(3 [pid 5092] memfd_create("syzkaller", 0 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5036] <... close resumed>) = 0 [pid 5092] <... memfd_create resumed>) = 5 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached [pid 5091] <... mmap resumed>) = 0x7ff2a0544000 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... close resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5094 [pid 5089] creat("./file1", 000) = 5 [pid 5089] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ [pid 5087] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5087] close(6 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5094] set_robust_list(0x555556477660, 24 [pid 5092] <... mmap resumed>) = 0x7ff2a0544000 [pid 5087] <... close resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5087] close(5 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5094] <... set_robust_list resumed>) = 0 [ 69.578507][ T5091] syz-executor223 (5091): drop_caches: 1 [ 69.585080][ T5092] syz-executor223 (5092): drop_caches: 1 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5095 [pid 5094] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x555556477660, 24) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5094] write(3, "1000", 4 [pid 5095] <... openat resumed>) = 4 [pid 5095] sendfile(4, 3, [88] [pid 5094] <... write resumed>) = 4 [pid 5094] close(3 [pid 5091] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5087] <... close resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5094] <... openat resumed>) = 3 [pid 5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5094] sendfile(4, 3, [88] [pid 5087] creat("./file1", 000) = 5 [pid 5087] exit_group(0) = ? [ 69.642684][ T5093] syz-executor223 (5093): drop_caches: 1 [pid 5093] <... sendfile resumed> => [95], 7) = 7 [pid 5087] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5093] memfd_create("syzkaller", 0 [pid 5031] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5093] <... memfd_create resumed>) = 5 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached , child_tidptr=0x555556477650) = 5096 [pid 5096] set_robust_list(0x555556477660, 24) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] <... write resumed>) = 2097152 [pid 5091] <... write resumed>) = 2097152 [pid 5096] write(3, "1000", 4) = 4 [pid 5096] close(3 [pid 5093] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5092] munmap(0x7ff2a0544000, 138412032 [pid 5096] <... close resumed>) = 0 [pid 5092] <... munmap resumed>) = 0 [pid 5091] munmap(0x7ff2a0544000, 138412032 [pid 5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5092] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5096] <... openat resumed>) = 4 [pid 5095] <... sendfile resumed> => [95], 7) = 7 [pid 5092] ioctl(6, LOOP_SET_FD, 5 [pid 5096] sendfile(4, 3, [88] [pid 5095] memfd_create("syzkaller", 0) = 5 [pid 5091] <... munmap resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5091] ioctl(6, LOOP_SET_FD, 5 [pid 5092] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] ioctl(6, LOOP_CLR_FD [pid 5092] ioctl(6, LOOP_CLR_FD [pid 5091] <... ioctl resumed>) = 0 [pid 5091] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5093] <... write resumed>) = 2097152 [pid 5093] munmap(0x7ff2a0544000, 138412032 [pid 5091] close(6 [pid 5092] <... ioctl resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5093] <... munmap resumed>) = 0 [pid 5091] close(5 [pid 5092] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5092] close(6) = 0 [pid 5094] <... sendfile resumed> => [95], 7) = 7 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5092] close(5 [pid 5094] memfd_create("syzkaller", 0 [pid 5093] <... openat resumed>) = 6 [pid 5093] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5093] ioctl(6, LOOP_CLR_FD [pid 5094] <... memfd_create resumed>) = 5 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5093] <... ioctl resumed>) = 0 [ 69.751970][ T5095] syz-executor223 (5095): drop_caches: 1 [ 69.785288][ T5094] syz-executor223 (5094): drop_caches: 1 [pid 5092] <... close resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5096] <... sendfile resumed> => [95], 7) = 7 [pid 5092] creat("./file1", 000 [pid 5091] creat("./file1", 000 [pid 5096] memfd_create("syzkaller", 0 [pid 5093] ioctl(6, LOOP_SET_FD, 5 [pid 5092] <... creat resumed>) = 5 [pid 5091] <... creat resumed>) = 5 [pid 5093] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5091] exit_group(0 [pid 5093] close(6 [pid 5091] <... exit_group resumed>) = ? [pid 5093] <... close resumed>) = 0 [pid 5096] <... memfd_create resumed>) = 5 [pid 5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5093] close(5 [pid 5092] exit_group(0 [pid 5091] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached [pid 5097] set_robust_list(0x555556477660, 24 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5097 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5097] setpgid(0, 0) = 0 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] <... exit_group resumed>) = ? [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5096] <... mmap resumed>) = 0x7ff2a0544000 [pid 5097] sendfile(4, 3, [88] [pid 5092] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} --- [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached [pid 5098] set_robust_list(0x555556477660, 24 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5098 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [ 69.851881][ T5096] syz-executor223 (5096): drop_caches: 1 [pid 5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5098] sendfile(4, 3, [88] [pid 5093] <... close resumed>) = 0 [pid 5093] creat("./file1", 000) = 5 [pid 5093] exit_group(0 [pid 5095] <... write resumed>) = 2097152 [pid 5093] <... exit_group resumed>) = ? [pid 5094] <... write resumed>) = 2097152 [pid 5093] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5095] munmap(0x7ff2a0544000, 138412032 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5099 [pid 5099] set_robust_list(0x555556477660, 24) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5095] <... munmap resumed>) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5099] write(3, "1000", 4 [pid 5095] <... openat resumed>) = 6 [pid 5099] <... write resumed>) = 4 [pid 5099] close(3) = 0 [pid 5094] munmap(0x7ff2a0544000, 138412032 [pid 5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5095] ioctl(6, LOOP_SET_FD, 5 [pid 5094] <... munmap resumed>) = 0 [pid 5099] <... openat resumed>) = 3 [pid 5095] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5095] ioctl(6, LOOP_CLR_FD [pid 5094] <... openat resumed>) = 6 [pid 5099] <... openat resumed>) = 4 [pid 5095] <... ioctl resumed>) = 0 [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5099] sendfile(4, 3, [88] [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] ioctl(6, LOOP_CLR_FD) = 0 [pid 5096] <... write resumed>) = 2097152 [pid 5095] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5095] close(6 [pid 5094] ioctl(6, LOOP_SET_FD, 5 [pid 5096] munmap(0x7ff2a0544000, 138412032 [pid 5095] <... close resumed>) = 0 [pid 5094] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] close(5 [pid 5094] close(6) = 0 [pid 5094] close(5 [pid 5097] <... sendfile resumed> => [95], 7) = 7 [pid 5096] <... munmap resumed>) = 0 [pid 5097] memfd_create("syzkaller", 0) = 5 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 69.996847][ T5097] syz-executor223 (5097): drop_caches: 1 [pid 5096] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] <... close resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = 6 [pid 5096] ioctl(6, LOOP_SET_FD, 5 [pid 5095] creat("./file1", 000 [pid 5094] creat("./file1", 000) = 5 [pid 5094] exit_group(0) = ? [pid 5096] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] <... creat resumed>) = 5 [pid 5094] +++ exited with 0 +++ [pid 5096] ioctl(6, LOOP_CLR_FD [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=4 /* 0.04 s */} --- [pid 5095] exit_group(0 [pid 5096] <... ioctl resumed>) = 0 [pid 5095] <... exit_group resumed>) = ? [pid 5098] <... sendfile resumed> => [95], 7) = 7 [pid 5098] memfd_create("syzkaller", 0 [pid 5096] ioctl(6, LOOP_SET_FD, 5 [pid 5095] +++ exited with 0 +++ [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=4 /* 0.04 s */} --- [pid 5098] <... memfd_create resumed>) = 5 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5029] <... openat resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5036] <... openat resumed>) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5029] <... ioctl resumed>) = 0 [pid 5029] close(3 [pid 5099] <... sendfile resumed> => [95], 7) = 7 [pid 5096] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] <... ioctl resumed>) = 0 [pid 5029] <... close resumed>) = 0 [pid 5099] memfd_create("syzkaller", 0 [pid 5096] close(6 [pid 5036] close(3 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5096] <... close resumed>) = 0 [pid 5099] <... memfd_create resumed>) = 5 [pid 5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5096] close(5 [pid 5036] <... close resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5100 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5100 attached [pid 5100] set_robust_list(0x555556477660, 24) = 0 ./strace-static-x86_64: Process 5101 attached [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... mmap resumed>) = 0x7ff2a0544000 [pid 5100] <... prctl resumed>) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1000", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 70.055310][ T5098] syz-executor223 (5098): drop_caches: 1 [ 70.087691][ T5099] syz-executor223 (5099): drop_caches: 1 [pid 5100] sendfile(4, 3, [88] [pid 5101] set_robust_list(0x555556477660, 24 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5101 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5096] <... close resumed>) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] creat("./file1", 000) = 5 [pid 5101] <... prctl resumed>) = 0 [pid 5096] exit_group(0 [pid 5101] setpgid(0, 0) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] <... exit_group resumed>) = ? [pid 5096] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5101] write(3, "1000", 4 [pid 5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5097] <... write resumed>) = 2097152 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5101] <... write resumed>) = 4 [pid 5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5031] <... ioctl resumed>) = 0 [pid 5101] close(3 [pid 5031] close(3 [pid 5101] <... close resumed>) = 0 [pid 5031] <... close resumed>) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached , child_tidptr=0x555556477650) = 5102 [pid 5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5102] set_robust_list(0x555556477660, 24 [pid 5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] <... set_robust_list resumed>) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... openat resumed>) = 4 [pid 5102] <... prctl resumed>) = 0 [pid 5102] setpgid(0, 0 [pid 5101] sendfile(4, 3, [88] [pid 5102] <... setpgid resumed>) = 0 [pid 5097] munmap(0x7ff2a0544000, 138412032 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... munmap resumed>) = 0 [pid 5102] <... openat resumed>) = 3 [pid 5097] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5102] write(3, "1000", 4 [pid 5097] <... openat resumed>) = 6 [pid 5102] <... write resumed>) = 4 [pid 5102] close(3) = 0 [pid 5097] ioctl(6, LOOP_SET_FD, 5 [pid 5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5097] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5102] <... openat resumed>) = 3 [pid 5097] ioctl(6, LOOP_CLR_FD [pid 5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5097] <... ioctl resumed>) = 0 [pid 5102] <... openat resumed>) = 4 [pid 5102] sendfile(4, 3, [88] [pid 5097] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5097] close(6) = 0 [pid 5098] <... write resumed>) = 2097152 [pid 5098] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5098] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5098] ioctl(6, LOOP_CLR_FD) = 0 [pid 5097] close(5) = 0 [pid 5097] creat("./file1", 000) = 5 [pid 5097] exit_group(0) = ? [pid 5098] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5098] close(6) = 0 [pid 5098] close(5) = 0 [pid 5098] creat("./file1", 000) = 5 [pid 5098] exit_group(0) = ? [pid 5098] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5103 ./strace-static-x86_64: Process 5103 attached [pid 5103] set_robust_list(0x555556477660, 24) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setpgid(0, 0) = 0 [pid 5100] <... sendfile resumed> => [95], 7) = 7 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] +++ exited with 0 +++ [pid 5103] <... openat resumed>) = 3 [pid 5100] memfd_create("syzkaller", 0 [pid 5103] write(3, "1000", 4 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5103] <... write resumed>) = 4 [pid 5100] <... memfd_create resumed>) = 5 [pid 5103] close(3 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5034] restart_syscall(<... resuming interrupted clone ...> [pid 5103] <... close resumed>) = 0 [pid 5100] <... mmap resumed>) = 0x7ff2a0544000 [pid 5034] <... restart_syscall resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5103] sendfile(4, 3, [88] [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5099] <... write resumed>) = 2097152 [pid 5099] munmap(0x7ff2a0544000, 138412032 [pid 5034] <... openat resumed>) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x555556477660, 24) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5104 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5104] sendfile(4, 3, [88] [pid 5099] <... munmap resumed>) = 0 [pid 5099] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [ 70.225829][ T5100] syz-executor223 (5100): drop_caches: 1 [pid 5099] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5099] ioctl(6, LOOP_CLR_FD) = 0 [pid 5099] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5099] close(6) = 0 [pid 5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5099] close(5) = 0 [pid 5099] creat("./file1", 000) = 5 [pid 5099] exit_group(0) = ? [pid 5102] <... sendfile resumed> => [95], 7) = 7 [pid 5099] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5028] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached [ 70.339490][ T5102] syz-executor223 (5102): drop_caches: 1 [pid 5102] memfd_create("syzkaller", 0 [pid 5105] set_robust_list(0x555556477660, 24 [pid 5103] <... sendfile resumed> => [95], 7) = 7 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5105 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5102] <... memfd_create resumed>) = 5 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] <... prctl resumed>) = 0 [pid 5105] setpgid(0, 0) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] <... write resumed>) = 2097152 [pid 5105] write(3, "1000", 4 [pid 5102] <... mmap resumed>) = 0x7ff2a0544000 [pid 5105] <... write resumed>) = 4 [pid 5105] close(3) = 0 [pid 5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5105] sendfile(4, 3, [88] [pid 5100] munmap(0x7ff2a0544000, 138412032) = 0 [ 70.388059][ T5103] syz-executor223 (5103): drop_caches: 1 [ 70.399514][ T5104] syz-executor223 (5104): drop_caches: 1 [pid 5103] memfd_create("syzkaller", 0 [pid 5100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5103] <... memfd_create resumed>) = 5 [pid 5100] <... openat resumed>) = 6 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] ioctl(6, LOOP_SET_FD, 5 [pid 5103] <... mmap resumed>) = 0x7ff2a0544000 [pid 5100] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] ioctl(6, LOOP_CLR_FD) = 0 [pid 5104] <... sendfile resumed> => [95], 7) = 7 [pid 5104] memfd_create("syzkaller", 0) = 5 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5100] ioctl(6, LOOP_SET_FD, 5 [pid 5104] <... mmap resumed>) = 0x7ff2a0544000 [pid 5100] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] <... sendfile resumed> => [95], 7) = 7 [pid 5100] close(6) = 0 [pid 5100] close(5) = 0 [pid 5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5101] memfd_create("syzkaller", 0) = 5 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5100] creat("./file1", 000) = 5 [pid 5100] exit_group(0) = ? [ 70.429037][ T5101] syz-executor223 (5101): drop_caches: 1 [pid 5100] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5102] <... write resumed>) = 2097152 [pid 5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5029] <... openat resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5103] <... write resumed>) = 2097152 [pid 5102] munmap(0x7ff2a0544000, 138412032 [pid 5029] <... ioctl resumed>) = 0 [pid 5105] <... sendfile resumed> => [95], 7) = 7 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5102] <... munmap resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5106 ./strace-static-x86_64: Process 5106 attached [pid 5106] set_robust_list(0x555556477660, 24) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5106] setpgid(0, 0 [pid 5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5103] munmap(0x7ff2a0544000, 138412032 [pid 5102] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5102] ioctl(6, LOOP_CLR_FD) = 0 [pid 5105] memfd_create("syzkaller", 0) = 5 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5103] <... munmap resumed>) = 0 [pid 5106] <... setpgid resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5106] <... openat resumed>) = 3 [pid 5106] write(3, "1000", 4 [pid 5103] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5102] close(6) = 0 [pid 5106] <... write resumed>) = 4 [pid 5106] close(3 [pid 5102] close(5 [pid 5103] <... openat resumed>) = 6 [pid 5101] <... write resumed>) = 2097152 [pid 5106] <... close resumed>) = 0 [pid 5104] <... write resumed>) = 2097152 [pid 5103] ioctl(6, LOOP_SET_FD, 5 [pid 5102] <... close resumed>) = 0 [pid 5101] munmap(0x7ff2a0544000, 138412032 [pid 5103] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5102] creat("./file1", 000 [pid 5106] <... openat resumed>) = 3 [pid 5102] <... creat resumed>) = 5 [pid 5102] exit_group(0) = ? [pid 5101] <... munmap resumed>) = 0 [ 70.520783][ T5105] syz-executor223 (5105): drop_caches: 1 [pid 5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5103] ioctl(6, LOOP_CLR_FD [pid 5101] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5103] <... ioctl resumed>) = 0 [pid 5106] <... openat resumed>) = 4 [pid 5102] +++ exited with 0 +++ [pid 5101] <... openat resumed>) = 6 [pid 5106] sendfile(4, 3, [88] [pid 5101] ioctl(6, LOOP_SET_FD, 5 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5103] ioctl(6, LOOP_SET_FD, 5 [pid 5104] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5103] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5103] close(6 [pid 5101] ioctl(6, LOOP_CLR_FD [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] <... ioctl resumed>) = 0 [pid 5103] <... close resumed>) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5103] close(5 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5103] <... close resumed>) = 0 [pid 5104] <... openat resumed>) = 6 [pid 5103] creat("./file1", 000 [pid 5101] ioctl(6, LOOP_SET_FD, 5 [pid 5031] <... ioctl resumed>) = 0 [pid 5101] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] close(3 [pid 5103] <... creat resumed>) = 5 [pid 5101] close(6 [pid 5031] <... close resumed>) = 0 [pid 5104] ioctl(6, LOOP_SET_FD, 5 [pid 5103] exit_group(0 [pid 5101] <... close resumed>) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] ioctl(6, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 5107 attached [pid 5103] <... exit_group resumed>) = ? [pid 5101] close(5 [pid 5104] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5104] close(6) = 0 [pid 5104] close(5) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5107 [pid 5101] <... close resumed>) = 0 [pid 5107] set_robust_list(0x555556477660, 24 [pid 5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5103] +++ exited with 0 +++ [pid 5107] <... set_robust_list resumed>) = 0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] <... restart_syscall resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] <... prctl resumed>) = 0 [pid 5101] creat("./file1", 000 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5108 [pid 5101] <... creat resumed>) = 5 ./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x555556477660, 24 [pid 5107] setpgid(0, 0) = 0 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] exit_group(0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5107] <... openat resumed>) = 3 [pid 5101] <... exit_group resumed>) = ? [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5107] write(3, "1000", 4 [pid 5108] sendfile(4, 3, [88] [pid 5107] <... write resumed>) = 4 [pid 5107] close(3) = 0 [pid 5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5101] +++ exited with 0 +++ [pid 5107] <... openat resumed>) = 3 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5104] creat("./file1", 000) = 5 [pid 5104] exit_group(0) = ? [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3 [pid 5107] sendfile(4, 3, [88] [pid 5104] +++ exited with 0 +++ [pid 5036] <... close resumed>) = 0 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] close(3) = 0 [pid 5034] 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 5110] set_robust_list(0x555556477660, 24 [pid 5109] set_robust_list(0x555556477660, 24 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5109 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5110 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... prctl resumed>) = 0 [pid 5109] <... prctl resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5109] setpgid(0, 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5109] <... setpgid resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 3 [pid 5109] write(3, "1000", 4 [pid 5105] <... write resumed>) = 2097152 [pid 5109] <... write resumed>) = 4 [pid 5105] munmap(0x7ff2a0544000, 138412032 [pid 5110] write(3, "1000", 4 [pid 5109] close(3 [pid 5105] <... munmap resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5109] sendfile(4, 3, [88] [pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5105] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5105] ioctl(6, LOOP_CLR_FD) = 0 [pid 5110] <... write resumed>) = 4 [pid 5110] close(3 [pid 5105] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5105] close(6) = 0 [pid 5105] close(5 [pid 5110] <... close resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5106] <... sendfile resumed> => [95], 7) = 7 [pid 5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5110] sendfile(4, 3, [88] [ 70.719367][ T5106] syz-executor223 (5106): drop_caches: 1 [pid 5106] memfd_create("syzkaller", 0) = 5 [pid 5105] <... close resumed>) = 0 [pid 5105] creat("./file1", 000) = 5 [pid 5105] exit_group(0) = ? [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5106] <... mmap resumed>) = 0x7ff2a0544000 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5107] <... sendfile resumed> => [95], 7) = 7 [pid 5028] <... ioctl resumed>) = 0 [pid 5028] close(3) = 0 [pid 5108] <... sendfile resumed> => [95], 7) = 7 [ 70.783097][ T5107] syz-executor223 (5107): drop_caches: 1 [ 70.800519][ T5108] syz-executor223 (5108): drop_caches: 1 [ 70.819050][ T5109] syz-executor223 (5109): drop_caches: 1 [pid 5108] memfd_create("syzkaller", 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] <... sendfile resumed> => [95], 7) = 7 [pid 5108] <... memfd_create resumed>) = 5 [pid 5107] memfd_create("syzkaller", 0 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 ./strace-static-x86_64: Process 5111 attached [pid 5107] <... memfd_create resumed>) = 5 [pid 5111] set_robust_list(0x555556477660, 24 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5111 [pid 5109] memfd_create("syzkaller", 0 [pid 5107] <... mmap resumed>) = 0x7ff2a0544000 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5109] <... memfd_create resumed>) = 5 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5110] <... sendfile resumed> => [95], 7) = 7 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] memfd_create("syzkaller", 0 [pid 5111] setpgid(0, 0) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... memfd_create resumed>) = 5 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5111] <... openat resumed>) = 3 [pid 5111] write(3, "1000", 4 [pid 5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5111] <... write resumed>) = 4 [pid 5111] close(3) = 0 [pid 5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 70.833971][ T5110] syz-executor223 (5110): drop_caches: 1 [pid 5107] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5106] <... write resumed>) = 2097152 [pid 5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5106] munmap(0x7ff2a0544000, 138412032 [pid 5111] <... openat resumed>) = 4 [pid 5111] sendfile(4, 3, [88] [pid 5106] <... munmap resumed>) = 0 [pid 5106] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5106] <... openat resumed>) = 6 [pid 5106] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5106] ioctl(6, LOOP_CLR_FD) = 0 [pid 5106] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5106] close(6) = 0 [pid 5106] close(5 [pid 5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5107] <... write resumed>) = 2097152 [pid 5107] munmap(0x7ff2a0544000, 138412032 [pid 5108] <... write resumed>) = 2097152 [pid 5107] <... munmap resumed>) = 0 [pid 5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5106] <... close resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5106] creat("./file1", 000) = 5 [pid 5107] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5107] ioctl(6, LOOP_CLR_FD) = 0 [pid 5108] munmap(0x7ff2a0544000, 138412032 [pid 5107] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5107] close(6) = 0 [pid 5107] close(5 [pid 5108] <... munmap resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] ioctl(6, LOOP_CLR_FD) = 0 [pid 5108] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5108] close(6) = 0 [pid 5108] close(5 [pid 5109] <... write resumed>) = 2097152 [pid 5107] <... close resumed>) = 0 [pid 5106] exit_group(0 [pid 5110] <... write resumed>) = 2097152 [pid 5110] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5106] <... exit_group resumed>) = ? [pid 5106] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5111] <... sendfile resumed> => [95], 7) = 7 [pid 5107] creat("./file1", 000 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5110] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5110] <... openat resumed>) = 6 [pid 5110] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5110] ioctl(6, LOOP_CLR_FD) = 0 [pid 5111] memfd_create("syzkaller", 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5111] <... memfd_create resumed>) = 5 [pid 5107] <... creat resumed>) = 5 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5110] ioctl(6, LOOP_SET_FD, 5 [pid 5109] munmap(0x7ff2a0544000, 138412032 [pid 5108] <... close resumed>) = 0 ./strace-static-x86_64: Process 5112 attached [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5110] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] <... munmap resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5112 [pid 5112] set_robust_list(0x555556477660, 24 [pid 5111] <... mmap resumed>) = 0x7ff2a0544000 [pid 5110] close(6 [pid 5109] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5112] <... set_robust_list resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 5109] <... openat resumed>) = 6 [pid 5110] close(5 [pid 5109] ioctl(6, LOOP_SET_FD, 5 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] ioctl(6, LOOP_CLR_FD [pid 5112] <... prctl resumed>) = 0 [pid 5109] <... ioctl resumed>) = 0 [ 70.995986][ T5111] syz-executor223 (5111): drop_caches: 1 [pid 5112] setpgid(0, 0) = 0 [pid 5110] <... close resumed>) = 0 [pid 5108] creat("./file1", 000 [pid 5107] exit_group(0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] <... exit_group resumed>) = ? [pid 5109] ioctl(6, LOOP_SET_FD, 5 [pid 5108] <... creat resumed>) = 5 [pid 5109] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5108] exit_group(0 [pid 5109] close(6 [pid 5108] <... exit_group resumed>) = ? [pid 5112] <... openat resumed>) = 3 [pid 5109] <... close resumed>) = 0 [pid 5108] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ [pid 5112] write(3, "1000", 4 [pid 5109] close(5 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5112] <... write resumed>) = 4 [pid 5109] <... close resumed>) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5112] close(3 [pid 5031] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5112] <... close resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] <... openat resumed>) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5113 [pid 5031] <... ioctl resumed>) = 0 [pid 5112] <... openat resumed>) = 3 [pid 5031] close(3./strace-static-x86_64: Process 5113 attached [pid 5113] set_robust_list(0x555556477660, 24) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5113] setpgid(0, 0) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] <... close resumed>) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] <... openat resumed>) = 3 [pid 5113] write(3, "1000", 4) = 4 [pid 5113] close(3) = 0 [pid 5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5110] creat("./file1", 000 [pid 5113] <... openat resumed>) = 4 [pid 5110] <... creat resumed>) = 5 [pid 5113] sendfile(4, 3, [88] [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5114 [pid 5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5114 attached [pid 5110] exit_group(0) = ? [pid 5110] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5114] set_robust_list(0x555556477660, 24 [pid 5112] <... openat resumed>) = 4 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5114] <... setpgid resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] <... openat resumed>) = 3 [pid 5114] <... openat resumed>) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5112] sendfile(4, 3, [88] [pid 5036] close(3 [pid 5114] <... openat resumed>) = 3 [pid 5109] creat("./file1", 000 [pid 5036] <... close resumed>) = 0 [pid 5109] <... creat resumed>) = 5 [pid 5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5114] sendfile(4, 3, [88] [pid 5109] exit_group(0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x555556477660, 24 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5115 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] +++ exited with 0 +++ [pid 5115] setpgid(0, 0) = 0 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5034] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] <... openat resumed>) = 3 [pid 5115] <... openat resumed>) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3 [pid 5115] write(3, "1000", 4 [pid 5034] <... close resumed>) = 0 [pid 5115] <... write resumed>) = 4 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5115] close(3) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5116 [pid 5115] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5116 attached ) = 3 [pid 5116] set_robust_list(0x555556477660, 24 [pid 5115] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5116] <... set_robust_list resumed>) = 0 [pid 5115] <... openat resumed>) = 4 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] sendfile(4, 3, [88] [pid 5116] <... prctl resumed>) = 0 [pid 5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] setpgid(0, 0) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5116] sendfile(4, 3, [88] [pid 5112] <... sendfile resumed> => [95], 7) = 7 [pid 5112] memfd_create("syzkaller", 0 [pid 5111] <... write resumed>) = 2097152 [pid 5112] <... memfd_create resumed>) = 5 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5111] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5114] <... sendfile resumed> => [95], 7) = 7 [pid 5111] <... openat resumed>) = 6 [pid 5114] memfd_create("syzkaller", 0 [pid 5111] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5111] ioctl(6, LOOP_CLR_FD) = 0 [pid 5113] <... sendfile resumed> => [95], 7) = 7 [pid 5113] memfd_create("syzkaller", 0 [pid 5111] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5111] close(6) = 0 [pid 5111] close(5 [pid 5114] <... memfd_create resumed>) = 5 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 71.191445][ T5112] syz-executor223 (5112): drop_caches: 1 [ 71.193281][ T5113] syz-executor223 (5113): drop_caches: 1 [ 71.210035][ T5114] syz-executor223 (5114): drop_caches: 1 [pid 5113] <... memfd_create resumed>) = 5 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5111] <... close resumed>) = 0 [pid 5116] <... sendfile resumed> => [95], 7) = 7 [pid 5111] creat("./file1", 000) = 5 [pid 5116] memfd_create("syzkaller", 0 [pid 5115] <... sendfile resumed> => [95], 7) = 7 [pid 5111] exit_group(0 [pid 5116] <... memfd_create resumed>) = 5 [pid 5111] <... exit_group resumed>) = ? [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5115] memfd_create("syzkaller", 0 [pid 5111] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=6 /* 0.06 s */} --- [pid 5116] <... mmap resumed>) = 0x7ff2a0544000 [ 71.249912][ T5115] syz-executor223 (5115): drop_caches: 1 [ 71.262437][ T5116] syz-executor223 (5116): drop_caches: 1 [pid 5115] <... memfd_create resumed>) = 5 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5028] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5115] <... mmap resumed>) = 0x7ff2a0544000 [pid 5028] <... ioctl resumed>) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached [pid 5117] set_robust_list(0x555556477660, 24) = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5117] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5112] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5117 [pid 5117] <... openat resumed>) = 4 [pid 5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5117] sendfile(4, 3, [88] [pid 5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5115] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5113] <... write resumed>) = 2097152 [pid 5112] <... write resumed>) = 2097152 [pid 5114] <... write resumed>) = 2097152 [pid 5114] munmap(0x7ff2a0544000, 138412032 [pid 5113] munmap(0x7ff2a0544000, 138412032 [pid 5114] <... munmap resumed>) = 0 [pid 5112] munmap(0x7ff2a0544000, 138412032 [pid 5114] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5112] <... munmap resumed>) = 0 [pid 5114] <... openat resumed>) = 6 [pid 5114] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5114] ioctl(6, LOOP_CLR_FD [pid 5113] <... munmap resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5113] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5112] <... openat resumed>) = 6 [pid 5112] ioctl(6, LOOP_SET_FD, 5 [pid 5114] <... ioctl resumed>) = 0 [pid 5113] <... openat resumed>) = 6 [pid 5112] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5112] ioctl(6, LOOP_CLR_FD [pid 5114] ioctl(6, LOOP_SET_FD, 5 [pid 5113] ioctl(6, LOOP_CLR_FD [pid 5112] <... ioctl resumed>) = 0 [pid 5114] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] <... ioctl resumed>) = 0 [pid 5114] close(6) = 0 [pid 5113] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5113] close(6 [pid 5112] ioctl(6, LOOP_SET_FD, 5 [pid 5114] close(5 [pid 5113] <... close resumed>) = 0 [pid 5112] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5113] close(5 [pid 5112] close(6) = 0 [pid 5112] close(5 [pid 5115] <... write resumed>) = 2097152 [pid 5116] <... write resumed>) = 2097152 [pid 5113] <... close resumed>) = 0 [pid 5113] creat("./file1", 000) = 5 [pid 5113] exit_group(0) = ? [pid 5114] <... close resumed>) = 0 [pid 5116] munmap(0x7ff2a0544000, 138412032 [pid 5112] <... close resumed>) = 0 [pid 5112] creat("./file1", 000 [pid 5116] <... munmap resumed>) = 0 [pid 5114] creat("./file1", 000 [pid 5116] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5115] munmap(0x7ff2a0544000, 138412032 [pid 5114] <... creat resumed>) = 5 [pid 5112] <... creat resumed>) = 5 [pid 5116] <... openat resumed>) = 6 [pid 5114] exit_group(0) = ? [pid 5112] exit_group(0 [pid 5116] ioctl(6, LOOP_SET_FD, 5 [pid 5114] +++ exited with 0 +++ [pid 5113] +++ exited with 0 +++ [pid 5112] <... exit_group resumed>) = ? [pid 5116] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5112] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5115] <... munmap resumed>) = 0 [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5117] <... sendfile resumed> => [95], 7) = 7 [pid 5116] ioctl(6, LOOP_CLR_FD [pid 5115] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] restart_syscall(<... resuming interrupted clone ...> [pid 5031] <... restart_syscall resumed>) = 0 [pid 5116] <... ioctl resumed>) = 0 [pid 5029] <... restart_syscall resumed>) = 0 [pid 5117] memfd_create("syzkaller", 0 [pid 5115] <... openat resumed>) = 6 [pid 5117] <... memfd_create resumed>) = 5 [pid 5115] ioctl(6, LOOP_SET_FD, 5 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5115] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] <... openat resumed>) = 3 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5117] <... mmap resumed>) = 0x7ff2a0544000 [pid 5115] ioctl(6, LOOP_CLR_FD [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5030] <... openat resumed>) = 3 [pid 5029] <... openat resumed>) = 3 [pid 5115] <... ioctl resumed>) = 0 [pid 5031] <... ioctl resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5031] close(3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5116] ioctl(6, LOOP_SET_FD, 5 [pid 5031] <... close resumed>) = 0 [pid 5030] <... ioctl resumed>) = 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5116] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] close(3 [pid 5029] close(3 [pid 5116] close(6 [pid 5030] <... close resumed>) = 0 [pid 5029] <... close resumed>) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5118 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] <... close resumed>) = 0 ./strace-static-x86_64: Process 5119 attached [pid 5115] ioctl(6, LOOP_SET_FD, 5 [pid 5116] close(5./strace-static-x86_64: Process 5120 attached ./strace-static-x86_64: Process 5118 attached [pid 5119] set_robust_list(0x555556477660, 24 [pid 5116] <... close resumed>) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5119 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5120 [pid 5120] set_robust_list(0x555556477660, 24 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5115] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] set_robust_list(0x555556477660, 24 [pid 5115] close(6 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5115] <... close resumed>) = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 71.438889][ T5117] syz-executor223 (5117): drop_caches: 1 [pid 5118] setpgid(0, 0 [pid 5115] close(5 [pid 5118] <... setpgid resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(3, "1000", 4) = 4 [pid 5118] close(3) = 0 [pid 5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5118] sendfile(4, 3, [88] [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] <... prctl resumed>) = 0 [pid 5119] setpgid(0, 0) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5115] <... close resumed>) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5119] <... openat resumed>) = 3 [pid 5120] write(3, "1000", 4 [pid 5116] creat("./file1", 000 [pid 5120] <... write resumed>) = 4 [pid 5119] write(3, "1000", 4 [pid 5115] creat("./file1", 000) = 5 [pid 5119] <... write resumed>) = 4 [pid 5115] exit_group(0 [pid 5120] close(3 [pid 5119] close(3 [pid 5116] <... creat resumed>) = 5 [pid 5115] <... exit_group resumed>) = ? [pid 5120] <... close resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5116] exit_group(0 [pid 5115] +++ exited with 0 +++ [pid 5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5116] <... exit_group resumed>) = ? [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5119] <... openat resumed>) = 3 [pid 5116] +++ exited with 0 +++ [pid 5036] <... ioctl resumed>) = 0 [pid 5120] <... openat resumed>) = 3 [pid 5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5036] close(3 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5119] <... openat resumed>) = 4 [pid 5036] <... close resumed>) = 0 [pid 5119] sendfile(4, 3, [88] [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached , child_tidptr=0x555556477650) = 5121 [pid 5121] set_robust_list(0x555556477660, 24) = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5121] setpgid(0, 0) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5121] write(3, "1000", 4 [pid 5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5034] <... openat resumed>) = 3 [pid 5121] <... write resumed>) = 4 [pid 5121] close(3) = 0 [pid 5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5121] sendfile(4, 3, [88] [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5120] <... openat resumed>) = 4 [pid 5034] <... ioctl resumed>) = 0 [pid 5120] sendfile(4, 3, [88] [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5122 attached , child_tidptr=0x555556477650) = 5122 [pid 5122] set_robust_list(0x555556477660, 24) = 0 [pid 5117] <... write resumed>) = 2097152 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] munmap(0x7ff2a0544000, 138412032 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5122] sendfile(4, 3, [88] [pid 5117] <... munmap resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5118] <... sendfile resumed> => [95], 7) = 7 [pid 5117] <... openat resumed>) = 6 [pid 5119] <... sendfile resumed> => [95], 7) = 7 [pid 5117] ioctl(6, LOOP_SET_FD, 5 [pid 5119] memfd_create("syzkaller", 0) = 5 [pid 5117] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] ioctl(6, LOOP_CLR_FD [pid 5119] <... mmap resumed>) = 0x7ff2a0544000 [pid 5117] <... ioctl resumed>) = 0 [pid 5117] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5117] close(6) = 0 [pid 5117] close(5 [pid 5120] <... sendfile resumed> => [95], 7) = 7 [pid 5118] memfd_create("syzkaller", 0) = 5 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 71.611991][ T5119] syz-executor223 (5119): drop_caches: 1 [ 71.636555][ T5118] syz-executor223 (5118): drop_caches: 1 [ 71.640318][ T5120] syz-executor223 (5120): drop_caches: 1 [pid 5120] memfd_create("syzkaller", 0 [pid 5117] <... close resumed>) = 0 [pid 5117] creat("./file1", 000 [pid 5120] <... memfd_create resumed>) = 5 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... creat resumed>) = 5 [pid 5120] <... mmap resumed>) = 0x7ff2a0544000 [pid 5117] exit_group(0 [pid 5121] <... sendfile resumed> => [95], 7) = 7 [pid 5117] <... exit_group resumed>) = ? [pid 5117] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=6 /* 0.06 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5123 attached , child_tidptr=0x555556477650) = 5123 [pid 5123] set_robust_list(0x555556477660, 24) = 0 [pid 5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5121] memfd_create("syzkaller", 0) = 5 [pid 5123] setpgid(0, 0 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5123] <... setpgid resumed>) = 0 [ 71.718078][ T5121] syz-executor223 (5121): drop_caches: 1 [ 71.723347][ T5122] syz-executor223 (5122): drop_caches: 1 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5123] sendfile(4, 3, [88] [pid 5122] <... sendfile resumed> => [95], 7) = 7 [pid 5120] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5119] <... write resumed>) = 2097152 [pid 5122] memfd_create("syzkaller", 0) = 5 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5118] <... write resumed>) = 2097152 [pid 5118] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5118] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5118] ioctl(6, LOOP_CLR_FD) = 0 [pid 5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5118] ioctl(6, LOOP_SET_FD, 5 [pid 5119] munmap(0x7ff2a0544000, 138412032 [pid 5118] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] close(6) = 0 [pid 5118] close(5 [pid 5119] <... munmap resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5119] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5119] ioctl(6, LOOP_CLR_FD [pid 5121] <... write resumed>) = 2097152 [pid 5119] <... ioctl resumed>) = 0 [pid 5118] <... close resumed>) = 0 [pid 5121] munmap(0x7ff2a0544000, 138412032 [pid 5118] creat("./file1", 000) = 5 [pid 5118] exit_group(0) = ? [pid 5119] ioctl(6, LOOP_SET_FD, 5 [pid 5118] +++ exited with 0 +++ [pid 5121] <... munmap resumed>) = 0 [pid 5119] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 s */} --- [pid 5119] close(6 [pid 5121] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5121] ioctl(6, LOOP_SET_FD, 5 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5121] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] <... openat resumed>) = 3 [pid 5123] <... sendfile resumed> => [95], 7) = 7 [pid 5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5120] <... write resumed>) = 2097152 [pid 5119] <... close resumed>) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5121] ioctl(6, LOOP_CLR_FD [pid 5119] close(5 [pid 5123] memfd_create("syzkaller", 0 [pid 5121] <... ioctl resumed>) = 0 [pid 5031] <... ioctl resumed>) = 0 [pid 5031] close(3 [pid 5120] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5031] <... close resumed>) = 0 [pid 5121] ioctl(6, LOOP_SET_FD, 5 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5121] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] <... memfd_create resumed>) = 5 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] close(6./strace-static-x86_64: Process 5124 attached [pid 5120] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5124] set_robust_list(0x555556477660, 24 [pid 5123] <... mmap resumed>) = 0x7ff2a0544000 [pid 5121] <... close resumed>) = 0 [pid 5120] <... openat resumed>) = 6 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5124 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5120] ioctl(6, LOOP_SET_FD, 5 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] close(5 [pid 5120] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] <... prctl resumed>) = 0 [pid 5120] ioctl(6, LOOP_CLR_FD [pid 5124] setpgid(0, 0 [pid 5120] <... ioctl resumed>) = 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4 [pid 5120] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5120] close(6) = 0 [pid 5120] close(5 [pid 5124] <... write resumed>) = 4 [pid 5124] close(3) = 0 [pid 5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 71.919126][ T5123] syz-executor223 (5123): drop_caches: 1 [pid 5124] sendfile(4, 3, [88] [pid 5122] <... write resumed>) = 2097152 [pid 5121] <... close resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5120] <... close resumed>) = 0 [pid 5119] creat("./file1", 000) = 5 [pid 5119] exit_group(0) = ? [pid 5119] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5122] munmap(0x7ff2a0544000, 138412032 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5122] <... munmap resumed>) = 0 [pid 5121] creat("./file1", 000 [pid 5120] creat("./file1", 000 [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3 [pid 5121] <... creat resumed>) = 5 [pid 5120] <... creat resumed>) = 5 [pid 5121] exit_group(0 [pid 5120] exit_group(0) = ? [pid 5120] +++ exited with 0 +++ [pid 5030] <... close resumed>) = 0 [pid 5121] <... exit_group resumed>) = ? [pid 5121] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5125 attached ) = 6 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5122] ioctl(6, LOOP_SET_FD, 5 [pid 5125] set_robust_list(0x555556477660, 24 [pid 5122] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] <... set_robust_list resumed>) = 0 [pid 5122] ioctl(6, LOOP_CLR_FD [pid 5029] <... openat resumed>) = 3 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] <... ioctl resumed>) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5125 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5125] <... prctl resumed>) = 0 [pid 5125] setpgid(0, 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5125] <... setpgid resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] close(3 [pid 5036] <... openat resumed>) = 3 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5029] <... close resumed>) = 0 [pid 5122] ioctl(6, LOOP_SET_FD, 5 [pid 5036] <... ioctl resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5122] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5122] close(6) = 0 ./strace-static-x86_64: Process 5126 attached [pid 5125] <... openat resumed>) = 3 [pid 5122] close(5 [pid 5036] close(3 [pid 5126] set_robust_list(0x555556477660, 24 [pid 5125] write(3, "1000", 4 [pid 5036] <... close resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5126 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5127 attached [pid 5126] <... set_robust_list resumed>) = 0 [pid 5125] <... write resumed>) = 4 [pid 5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5125] close(3 [pid 5127] set_robust_list(0x555556477660, 24 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] <... close resumed>) = 0 [pid 5126] <... prctl resumed>) = 0 [pid 5126] setpgid(0, 0 [pid 5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] <... setpgid resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] <... openat resumed>) = 3 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5127 [pid 5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5127] <... prctl resumed>) = 0 [pid 5125] <... openat resumed>) = 4 [pid 5127] setpgid(0, 0 [pid 5125] sendfile(4, 3, [88] [pid 5126] <... close resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5126] sendfile(4, 3, [88] [pid 5127] <... setpgid resumed>) = 0 [pid 5123] <... write resumed>) = 2097152 [pid 5122] <... close resumed>) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3 [pid 5122] creat("./file1", 000 [pid 5127] <... close resumed>) = 0 [pid 5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5122] <... creat resumed>) = 5 [pid 5122] exit_group(0) = ? [pid 5127] <... openat resumed>) = 3 [pid 5122] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5128 ./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x555556477660, 24) = 0 [pid 5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5128] setpgid(0, 0) = 0 [pid 5127] <... openat resumed>) = 4 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] <... sendfile resumed> => [95], 7) = 7 [pid 5127] sendfile(4, 3, [88] [pid 5124] memfd_create("syzkaller", 0 [pid 5128] write(3, "1000", 4 [pid 5124] <... memfd_create resumed>) = 5 [pid 5128] <... write resumed>) = 4 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5128] close(3 [pid 5124] <... mmap resumed>) = 0x7ff2a0544000 [pid 5128] <... close resumed>) = 0 [pid 5123] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5123] ioctl(6, LOOP_SET_FD, 5 [pid 5128] <... openat resumed>) = 3 [pid 5123] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] ioctl(6, LOOP_CLR_FD) = 0 [ 72.085843][ T5124] syz-executor223 (5124): drop_caches: 1 [pid 5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5123] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5123] close(6) = 0 [pid 5128] <... openat resumed>) = 4 [pid 5123] close(5) = 0 [pid 5128] sendfile(4, 3, [88] [pid 5123] creat("./file1", 000) = 5 [pid 5123] exit_group(0) = ? [pid 5123] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5126] <... sendfile resumed> => [95], 7) = 7 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x555556477660, 24) = 0 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5129 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5129] setpgid(0, 0) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... sendfile resumed> => [95], 7) = 7 [pid 5129] <... openat resumed>) = 3 [pid 5127] <... sendfile resumed> => [95], 7) = 7 [pid 5126] memfd_create("syzkaller", 0 [pid 5125] memfd_create("syzkaller", 0 [pid 5129] write(3, "1000", 4 [pid 5126] <... memfd_create resumed>) = 5 [pid 5129] <... write resumed>) = 4 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5129] close(3) = 0 [pid 5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5127] memfd_create("syzkaller", 0 [pid 5125] <... memfd_create resumed>) = 5 [pid 5129] <... openat resumed>) = 3 [pid 5127] <... memfd_create resumed>) = 5 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] <... write resumed>) = 2097152 [pid 5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5125] <... mmap resumed>) = 0x7ff2a0544000 [pid 5124] munmap(0x7ff2a0544000, 138412032 [pid 5127] <... mmap resumed>) = 0x7ff2a0544000 [pid 5124] <... munmap resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5124] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] ioctl(6, LOOP_CLR_FD) = 0 [ 72.207193][ T5126] syz-executor223 (5126): drop_caches: 1 [ 72.213094][ T5125] syz-executor223 (5125): drop_caches: 1 [ 72.243457][ T5127] syz-executor223 (5127): drop_caches: 1 [pid 5129] <... openat resumed>) = 4 [pid 5129] sendfile(4, 3, [88] [pid 5124] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5124] close(6) = 0 [pid 5124] close(5) = 0 [pid 5128] <... sendfile resumed> => [95], 7) = 7 [pid 5128] memfd_create("syzkaller", 0) = 5 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5126] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5124] creat("./file1", 000) = 5 [pid 5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5124] exit_group(0) = ? [ 72.303942][ T5128] syz-executor223 (5128): drop_caches: 1 [pid 5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5124] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5126] <... write resumed>) = 2097152 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5126] munmap(0x7ff2a0544000, 138412032 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3 [pid 5126] <... munmap resumed>) = 0 [pid 5031] <... close resumed>) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5126] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5126] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5126] ioctl(6, LOOP_CLR_FD) = 0 [pid 5126] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5126] close(6) = 0 [pid 5126] close(5./strace-static-x86_64: Process 5130 attached [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5130 [pid 5130] set_robust_list(0x555556477660, 24) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... write resumed>) = 2097152 [pid 5125] munmap(0x7ff2a0544000, 138412032 [pid 5130] <... openat resumed>) = 3 [pid 5129] <... sendfile resumed> => [95], 7) = 7 [pid 5125] <... munmap resumed>) = 0 [pid 5130] write(3, "1000", 4) = 4 [pid 5129] memfd_create("syzkaller", 0 [pid 5128] <... write resumed>) = 2097152 [pid 5126] <... close resumed>) = 0 [pid 5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5125] <... openat resumed>) = 6 [ 72.381342][ T5129] syz-executor223 (5129): drop_caches: 1 [pid 5125] ioctl(6, LOOP_SET_FD, 5 [pid 5130] <... openat resumed>) = 3 [pid 5129] <... memfd_create resumed>) = 5 [pid 5128] munmap(0x7ff2a0544000, 138412032 [pid 5125] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5125] ioctl(6, LOOP_CLR_FD) = 0 [pid 5130] <... openat resumed>) = 4 [pid 5130] sendfile(4, 3, [88] [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5128] <... munmap resumed>) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] <... write resumed>) = 2097152 [pid 5125] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5128] <... openat resumed>) = 6 [pid 5127] munmap(0x7ff2a0544000, 138412032 [pid 5126] creat("./file1", 000 [pid 5125] close(6 [pid 5128] ioctl(6, LOOP_SET_FD, 5 [pid 5127] <... munmap resumed>) = 0 [pid 5125] <... close resumed>) = 0 [pid 5125] close(5 [pid 5126] <... creat resumed>) = 5 [pid 5126] exit_group(0) = ? [pid 5126] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...> [pid 5127] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] <... restart_syscall resumed>) = 0 [pid 5127] <... openat resumed>) = 6 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5127] ioctl(6, LOOP_SET_FD, 5 [pid 5029] <... openat resumed>) = 3 [pid 5127] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5127] ioctl(6, LOOP_CLR_FD [pid 5029] <... ioctl resumed>) = 0 [pid 5127] <... ioctl resumed>) = 0 [pid 5029] close(3) = 0 [pid 5128] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached [pid 5128] ioctl(6, LOOP_CLR_FD [pid 5131] set_robust_list(0x555556477660, 24 [pid 5128] <... ioctl resumed>) = 0 [pid 5127] ioctl(6, LOOP_SET_FD, 5 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5131 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... prctl resumed>) = 0 [pid 5127] close(6 [pid 5125] <... close resumed>) = 0 [pid 5128] ioctl(6, LOOP_SET_FD, 5 [pid 5127] <... close resumed>) = 0 [pid 5127] close(5 [pid 5131] setpgid(0, 0 [pid 5129] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5128] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] <... setpgid resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] close(6 [pid 5131] <... openat resumed>) = 3 [pid 5131] write(3, "1000", 4) = 4 [pid 5131] close(3) = 0 [pid 5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5131] sendfile(4, 3, [88] [pid 5128] <... close resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5125] creat("./file1", 000 [pid 5128] close(5 [pid 5125] <... creat resumed>) = 5 [pid 5125] exit_group(0) = ? [pid 5125] +++ exited with 0 +++ [pid 5127] creat("./file1", 000 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=5 /* 0.05 s */} --- [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5127] <... creat resumed>) = 5 [pid 5030] <... restart_syscall resumed>) = 0 [pid 5127] exit_group(0) = ? [pid 5127] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5036] <... ioctl resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5036] close(3 [pid 5030] <... openat resumed>) = 3 [pid 5036] <... close resumed>) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5132 [pid 5030] close(3./strace-static-x86_64: Process 5132 attached ) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5133 attached [pid 5132] set_robust_list(0x555556477660, 24 [pid 5130] <... sendfile resumed> => [95], 7) = 7 [pid 5129] <... write resumed>) = 2097152 [pid 5128] creat("./file1", 000 [pid 5133] set_robust_list(0x555556477660, 24 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... prctl resumed>) = 0 [pid 5132] <... prctl resumed>) = 0 [pid 5133] setpgid(0, 0 [pid 5132] setpgid(0, 0 [pid 5130] memfd_create("syzkaller", 0 [pid 5129] munmap(0x7ff2a0544000, 138412032 [pid 5128] <... creat resumed>) = 5 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5133 [pid 5133] <... setpgid resumed>) = 0 [pid 5132] <... setpgid resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5133] <... openat resumed>) = 3 [pid 5132] <... openat resumed>) = 3 [pid 5128] exit_group(0 [pid 5132] write(3, "1000", 4 [pid 5128] <... exit_group resumed>) = ? [pid 5133] write(3, "1000", 4 [pid 5132] <... write resumed>) = 4 [pid 5130] <... memfd_create resumed>) = 5 [pid 5132] close(3) = 0 [pid 5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] <... openat resumed>) = 3 [pid 5130] <... mmap resumed>) = 0x7ff2a0544000 [pid 5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5133] <... write resumed>) = 4 [pid 5133] close(3 [pid 5132] <... openat resumed>) = 4 [pid 5133] <... close resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5132] sendfile(4, 3, [88] [pid 5129] <... munmap resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5129] ioctl(6, LOOP_SET_FD, 5 [pid 5128] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=6 /* 0.06 s */} --- [pid 5129] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5034] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5134 attached [pid 5129] ioctl(6, LOOP_CLR_FD [pid 5133] <... openat resumed>) = 3 [pid 5134] set_robust_list(0x555556477660, 24 [pid 5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5129] <... ioctl resumed>) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5134 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... openat resumed>) = 4 [pid 5134] <... prctl resumed>) = 0 [pid 5133] sendfile(4, 3, [88] [pid 5134] setpgid(0, 0) = 0 [pid 5129] ioctl(6, LOOP_SET_FD, 5 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5134] <... openat resumed>) = 3 [pid 5129] close(6) = 0 [pid 5129] close(5) = 0 [pid 5129] creat("./file1", 000 [pid 5134] write(3, "1000", 4 [pid 5129] <... creat resumed>) = 5 [ 72.566373][ T5130] syz-executor223 (5130): drop_caches: 1 [pid 5129] exit_group(0) = ? [pid 5129] +++ exited with 0 +++ [pid 5134] <... write resumed>) = 4 [pid 5134] close(3) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5134] <... openat resumed>) = 3 [pid 5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5134] <... openat resumed>) = 4 [pid 5028] <... openat resumed>) = 3 [pid 5134] sendfile(4, 3, [88] [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached , child_tidptr=0x555556477650) = 5135 [pid 5135] set_robust_list(0x555556477660, 24) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 72.632413][ T5131] syz-executor223 (5131): drop_caches: 1 [pid 5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5131] <... sendfile resumed> => [95], 7) = 7 [pid 5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5131] memfd_create("syzkaller", 0 [pid 5135] <... openat resumed>) = 4 [pid 5135] sendfile(4, 3, [88] [pid 5131] <... memfd_create resumed>) = 5 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5132] <... sendfile resumed> => [95], 7) = 7 [pid 5130] <... write resumed>) = 2097152 [pid 5133] <... sendfile resumed> => [95], 7) = 7 [pid 5132] memfd_create("syzkaller", 0 [pid 5130] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5132] <... memfd_create resumed>) = 5 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5130] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [ 72.726679][ T5132] syz-executor223 (5132): drop_caches: 1 [ 72.757272][ T5133] syz-executor223 (5133): drop_caches: 1 [pid 5130] ioctl(6, LOOP_SET_FD, 5 [pid 5133] memfd_create("syzkaller", 0 [pid 5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5130] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] <... memfd_create resumed>) = 5 [pid 5130] ioctl(6, LOOP_CLR_FD [pid 5134] <... sendfile resumed> => [95], 7) = 7 [pid 5134] memfd_create("syzkaller", 0) = 5 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5130] <... ioctl resumed>) = 0 [pid 5133] <... mmap resumed>) = 0x7ff2a0544000 [pid 5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5131] <... write resumed>) = 2097152 [pid 5135] <... sendfile resumed> => [95], 7) = 7 [pid 5130] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5130] close(6) = 0 [pid 5130] close(5 [pid 5135] memfd_create("syzkaller", 0 [ 72.776253][ T5134] syz-executor223 (5134): drop_caches: 1 [ 72.788702][ T5135] syz-executor223 (5135): drop_caches: 1 [pid 5131] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5135] <... memfd_create resumed>) = 5 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] <... openat resumed>) = 6 [pid 5135] <... mmap resumed>) = 0x7ff2a0544000 [pid 5131] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5131] ioctl(6, LOOP_CLR_FD) = 0 [pid 5132] <... write resumed>) = 2097152 [pid 5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5131] ioctl(6, LOOP_SET_FD, 5 [pid 5132] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5130] <... close resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5131] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5131] close(6 [pid 5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5132] <... openat resumed>) = 6 [pid 5131] <... close resumed>) = 0 [pid 5130] creat("./file1", 000 [pid 5132] ioctl(6, LOOP_SET_FD, 5 [pid 5131] close(5 [pid 5130] <... creat resumed>) = 5 [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5132] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5132] ioctl(6, LOOP_CLR_FD) = 0 [pid 5132] ioctl(6, LOOP_SET_FD, 5 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5132] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] close(6./strace-static-x86_64: Process 5136 attached [pid 5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5132] <... close resumed>) = 0 [pid 5131] <... close resumed>) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5136 [pid 5136] set_robust_list(0x555556477660, 24 [pid 5132] close(5 [pid 5131] creat("./file1", 000 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5136] setpgid(0, 0) = 0 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "1000", 4) = 4 [pid 5136] close(3) = 0 [pid 5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5136] sendfile(4, 3, [88] [pid 5132] <... close resumed>) = 0 [pid 5131] <... creat resumed>) = 5 [pid 5134] <... write resumed>) = 2097152 [pid 5133] <... write resumed>) = 2097152 [pid 5131] exit_group(0 [pid 5133] munmap(0x7ff2a0544000, 138412032 [pid 5131] <... exit_group resumed>) = ? [pid 5135] <... write resumed>) = 2097152 [pid 5133] <... munmap resumed>) = 0 [pid 5132] creat("./file1", 000 [pid 5131] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5133] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5133] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5133] ioctl(6, LOOP_CLR_FD) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] <... creat resumed>) = 5 ./strace-static-x86_64: Process 5137 attached [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5137 [pid 5137] set_robust_list(0x555556477660, 24) = 0 [pid 5135] munmap(0x7ff2a0544000, 138412032 [pid 5132] exit_group(0 [pid 5134] munmap(0x7ff2a0544000, 138412032 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] <... munmap resumed>) = 0 [pid 5134] <... munmap resumed>) = 0 [pid 5133] ioctl(6, LOOP_SET_FD, 5 [pid 5132] <... exit_group resumed>) = ? [pid 5137] <... prctl resumed>) = 0 [pid 5133] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5137] setpgid(0, 0 [pid 5133] close(6 [pid 5137] <... setpgid resumed>) = 0 [pid 5133] <... close resumed>) = 0 [pid 5132] +++ exited with 0 +++ [pid 5133] close(5 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5134] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5036] <... openat resumed>) = 3 [pid 5134] <... openat resumed>) = 6 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5134] ioctl(6, LOOP_SET_FD, 5 [pid 5036] <... ioctl resumed>) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5138 ./strace-static-x86_64: Process 5138 attached [pid 5134] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] set_robust_list(0x555556477660, 24 [pid 5134] ioctl(6, LOOP_CLR_FD [pid 5138] <... set_robust_list resumed>) = 0 [pid 5134] <... ioctl resumed>) = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5138] setpgid(0, 0) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5134] close(6 [pid 5138] write(3, "1000", 4 [pid 5134] <... close resumed>) = 0 [pid 5138] <... write resumed>) = 4 [pid 5134] close(5 [pid 5133] <... close resumed>) = 0 [pid 5137] <... openat resumed>) = 3 [pid 5137] write(3, "1000", 4 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5137] <... write resumed>) = 4 [pid 5138] close(3 [pid 5137] close(3 [pid 5135] <... openat resumed>) = 6 [pid 5133] creat("./file1", 000 [pid 5138] <... close resumed>) = 0 [pid 5137] <... close resumed>) = 0 [pid 5135] ioctl(6, LOOP_SET_FD, 5 [pid 5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5135] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] <... openat resumed>) = 3 [pid 5137] <... openat resumed>) = 3 [pid 5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5133] <... creat resumed>) = 5 [pid 5138] <... openat resumed>) = 4 [pid 5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] sendfile(4, 3, [88] [pid 5137] <... openat resumed>) = 4 [pid 5135] ioctl(6, LOOP_CLR_FD [pid 5133] exit_group(0 [pid 5137] sendfile(4, 3, [88] [pid 5135] <... ioctl resumed>) = 0 [pid 5133] <... exit_group resumed>) = ? [pid 5134] <... close resumed>) = 0 [pid 5133] +++ exited with 0 +++ [pid 5134] creat("./file1", 000) = 5 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5135] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5135] close(6 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5135] <... close resumed>) = 0 [pid 5134] exit_group(0 [pid 5030] <... openat resumed>) = 3 [pid 5134] <... exit_group resumed>) = ? [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5135] close(5 [pid 5134] +++ exited with 0 +++ [pid 5030] <... ioctl resumed>) = 0 [pid 5136] <... sendfile resumed> => [95], 7) = 7 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x555556477660, 24 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5139 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5030] close(3 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] <... close resumed>) = 0 [pid 5139] <... prctl resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5139] setpgid(0, 0) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5136] memfd_create("syzkaller", 0 [pid 5139] <... openat resumed>) = 3 [pid 5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 72.982264][ T5136] syz-executor223 (5136): drop_caches: 1 [pid 5139] sendfile(4, 3, [88]./strace-static-x86_64: Process 5140 attached [pid 5136] <... memfd_create resumed>) = 5 [pid 5135] <... close resumed>) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5140 [pid 5140] set_robust_list(0x555556477660, 24) = 0 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5140] setpgid(0, 0) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] creat("./file1", 000) = 5 [pid 5140] write(3, "1000", 4 [pid 5135] exit_group(0) = ? [pid 5140] <... write resumed>) = 4 [pid 5135] +++ exited with 0 +++ [pid 5140] close(3) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5140] <... openat resumed>) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5028] <... ioctl resumed>) = 0 [pid 5140] sendfile(4, 3, [88] [pid 5028] close(3) = 0 [pid 5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] <... sendfile resumed> => [95], 7) = 7 ./strace-static-x86_64: Process 5141 attached [pid 5137] memfd_create("syzkaller", 0 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5141 [pid 5141] set_robust_list(0x555556477660, 24 [pid 5137] <... memfd_create resumed>) = 5 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5137] <... mmap resumed>) = 0x7ff2a0544000 [pid 5141] <... prctl resumed>) = 0 [pid 5141] setpgid(0, 0) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 73.076322][ T5137] syz-executor223 (5137): drop_caches: 1 [pid 5141] write(3, "1000", 4 [pid 5138] <... sendfile resumed> => [95], 7) = 7 [pid 5141] <... write resumed>) = 4 [pid 5141] close(3) = 0 [pid 5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5136] <... write resumed>) = 2097152 [pid 5136] munmap(0x7ff2a0544000, 138412032 [pid 5141] <... openat resumed>) = 3 [pid 5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5138] memfd_create("syzkaller", 0) = 5 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] <... mmap resumed>) = 0x7ff2a0544000 [pid 5141] <... openat resumed>) = 4 [pid 5136] <... munmap resumed>) = 0 [pid 5141] sendfile(4, 3, [88] [ 73.116809][ T5138] syz-executor223 (5138): drop_caches: 1 [pid 5136] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5136] ioctl(6, LOOP_SET_FD, 5 [pid 5140] <... sendfile resumed> => [95], 7) = 7 [pid 5137] <... write resumed>) = 2097152 [pid 5136] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] <... sendfile resumed> => [95], 7) = 7 [pid 5140] memfd_create("syzkaller", 0 [pid 5139] memfd_create("syzkaller", 0 [pid 5136] ioctl(6, LOOP_CLR_FD) = 0 [pid 5139] <... memfd_create resumed>) = 5 [pid 5140] <... memfd_create resumed>) = 5 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5136] ioctl(6, LOOP_SET_FD, 5 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5136] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] <... mmap resumed>) = 0x7ff2a0544000 [pid 5136] close(6 [pid 5139] <... mmap resumed>) = 0x7ff2a0544000 [pid 5136] <... close resumed>) = 0 [pid 5138] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 73.165530][ T5139] syz-executor223 (5139): drop_caches: 1 [ 73.176713][ T5140] syz-executor223 (5140): drop_caches: 1 [pid 5136] close(5 [pid 5137] munmap(0x7ff2a0544000, 138412032 [pid 5136] <... close resumed>) = 0 [pid 5137] <... munmap resumed>) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5137] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5137] ioctl(6, LOOP_CLR_FD [pid 5136] creat("./file1", 000 [pid 5137] <... ioctl resumed>) = 0 [pid 5136] <... creat resumed>) = 5 [pid 5137] ioctl(6, LOOP_SET_FD, 5 [pid 5136] exit_group(0 [pid 5137] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] <... exit_group resumed>) = ? [pid 5137] close(6 [pid 5136] +++ exited with 0 +++ [pid 5137] <... close resumed>) = 0 [pid 5137] close(5 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5137] <... close resumed>) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] <... write resumed>) = 2097152 [pid 5138] munmap(0x7ff2a0544000, 138412032 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5142 [pid 5138] <... munmap resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5142 attached [pid 5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5138] <... openat resumed>) = 6 [pid 5137] creat("./file1", 000 [pid 5138] ioctl(6, LOOP_SET_FD, 5 [pid 5137] <... creat resumed>) = 5 [pid 5142] set_robust_list(0x555556477660, 24 [pid 5138] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] ioctl(6, LOOP_CLR_FD [pid 5142] <... set_robust_list resumed>) = 0 [pid 5138] <... ioctl resumed>) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... sendfile resumed> => [95], 7) = 7 [pid 5137] exit_group(0 [pid 5141] memfd_create("syzkaller", 0 [pid 5142] <... prctl resumed>) = 0 [pid 5142] setpgid(0, 0 [pid 5138] ioctl(6, LOOP_SET_FD, 5 [pid 5137] <... exit_group resumed>) = ? [pid 5138] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] close(6) = 0 [pid 5142] <... setpgid resumed>) = 0 [pid 5141] <... memfd_create resumed>) = 5 [pid 5140] <... write resumed>) = 2097152 [pid 5138] close(5 [pid 5137] +++ exited with 0 +++ [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5140] munmap(0x7ff2a0544000, 138412032 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...> [pid 5141] <... mmap resumed>) = 0x7ff2a0544000 [pid 5029] <... restart_syscall resumed>) = 0 [ 73.308356][ T5141] syz-executor223 (5141): drop_caches: 1 [pid 5138] <... close resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5142] <... openat resumed>) = 3 [pid 5140] <... munmap resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5142] write(3, "1000", 4 [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5142] <... write resumed>) = 4 [pid 5140] ioctl(6, LOOP_SET_FD, 5 [pid 5142] close(3) = 0 [pid 5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5140] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] <... openat resumed>) = 3 [pid 5140] ioctl(6, LOOP_CLR_FD [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5143 [pid 5140] <... ioctl resumed>) = 0 [pid 5140] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5140] close(6) = 0 [pid 5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5140] close(5 [pid 5142] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x555556477660, 24) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0 [pid 5142] sendfile(4, 3, [88] [pid 5143] <... setpgid resumed>) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] creat("./file1", 000 [pid 5143] <... openat resumed>) = 4 [pid 5139] <... write resumed>) = 2097152 [pid 5138] <... creat resumed>) = 5 [pid 5143] sendfile(4, 3, [88] [pid 5138] exit_group(0) = ? [pid 5139] munmap(0x7ff2a0544000, 138412032 [pid 5138] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5144 [pid 5139] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x555556477660, 24) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5144] setpgid(0, 0 [pid 5140] <... close resumed>) = 0 [pid 5144] <... setpgid resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5144] write(3, "1000", 4) = 4 [pid 5144] close(3 [pid 5139] ioctl(6, LOOP_SET_FD, 5 [pid 5144] <... close resumed>) = 0 [pid 5139] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5144] sendfile(4, 3, [88] [pid 5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5140] creat("./file1", 000 [pid 5139] ioctl(6, LOOP_CLR_FD [pid 5140] <... creat resumed>) = 5 [pid 5139] <... ioctl resumed>) = 0 [pid 5140] exit_group(0 [pid 5141] <... write resumed>) = 2097152 [pid 5140] <... exit_group resumed>) = ? [pid 5139] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5139] close(6) = 0 [pid 5140] +++ exited with 0 +++ [pid 5142] <... sendfile resumed> => [95], 7) = 7 [pid 5141] munmap(0x7ff2a0544000, 138412032 [pid 5139] close(5 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=5 /* 0.05 s */} --- [pid 5030] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3 [pid 5142] memfd_create("syzkaller", 0 [pid 5141] <... munmap resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5142] <... memfd_create resumed>) = 5 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5145 [pid 5141] <... openat resumed>) = 6 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5141] ioctl(6, LOOP_CLR_FD [pid 5142] <... mmap resumed>) = 0x7ff2a0544000 [pid 5141] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5145 attached [pid 5139] <... close resumed>) = 0 [pid 5145] set_robust_list(0x555556477660, 24) = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5145] setpgid(0, 0) = 0 [pid 5141] ioctl(6, LOOP_SET_FD, 5 [ 73.495149][ T5142] syz-executor223 (5142): drop_caches: 1 [ 73.523628][ T5143] syz-executor223 (5143): drop_caches: 1 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] creat("./file1", 000 [pid 5145] <... openat resumed>) = 3 [pid 5141] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] write(3, "1000", 4) = 4 [pid 5141] close(6 [pid 5145] close(3 [pid 5141] <... close resumed>) = 0 [pid 5145] <... close resumed>) = 0 [pid 5139] <... creat resumed>) = 5 [pid 5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5139] exit_group(0 [pid 5145] <... openat resumed>) = 3 [pid 5139] <... exit_group resumed>) = ? [pid 5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5145] sendfile(4, 3, [88] [pid 5143] <... sendfile resumed> => [95], 7) = 7 [pid 5143] memfd_create("syzkaller", 0 [pid 5141] close(5 [pid 5139] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5146 [pid 5143] <... memfd_create resumed>) = 5 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 ./strace-static-x86_64: Process 5146 attached [pid 5146] set_robust_list(0x555556477660, 24) = 0 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] setpgid(0, 0) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5144] <... sendfile resumed> => [95], 7) = 7 [pid 5144] memfd_create("syzkaller", 0 [pid 5146] write(3, "1000", 4) = 4 [pid 5144] <... memfd_create resumed>) = 5 [pid 5146] close(3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] <... close resumed>) = 0 [pid 5144] <... mmap resumed>) = 0x7ff2a0544000 [pid 5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 73.552178][ T5144] syz-executor223 (5144): drop_caches: 1 [pid 5146] sendfile(4, 3, [88] [pid 5141] <... close resumed>) = 0 [pid 5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5141] creat("./file1", 000 [pid 5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5141] <... creat resumed>) = 5 [pid 5141] exit_group(0 [pid 5144] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5141] <... exit_group resumed>) = ? [pid 5142] <... write resumed>) = 2097152 [pid 5141] +++ exited with 0 +++ [pid 5028] --- 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 5142] munmap(0x7ff2a0544000, 138412032 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5145] <... sendfile resumed> => [95], 7) = 7 ./strace-static-x86_64: Process 5147 attached [pid 5145] memfd_create("syzkaller", 0 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5147 [pid 5145] <... memfd_create resumed>) = 5 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5143] <... write resumed>) = 2097152 [pid 5143] munmap(0x7ff2a0544000, 138412032 [pid 5147] set_robust_list(0x555556477660, 24 [pid 5144] <... write resumed>) = 2097152 [pid 5143] <... munmap resumed>) = 0 [pid 5142] <... munmap resumed>) = 0 [pid 5146] <... sendfile resumed> => [95], 7) = 7 [pid 5144] munmap(0x7ff2a0544000, 138412032 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] memfd_create("syzkaller", 0 [pid 5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] <... memfd_create resumed>) = 5 [pid 5142] <... openat resumed>) = 6 [pid 5147] <... prctl resumed>) = 0 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] ioctl(6, LOOP_SET_FD, 5 [pid 5147] setpgid(0, 0 [pid 5146] <... mmap resumed>) = 0x7ff2a0544000 [pid 5142] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] ioctl(6, LOOP_CLR_FD [pid 5144] <... munmap resumed>) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5142] <... ioctl resumed>) = 0 [pid 5147] <... setpgid resumed>) = 0 [pid 5143] <... openat resumed>) = 6 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5143] ioctl(6, LOOP_SET_FD, 5 [pid 5147] <... openat resumed>) = 3 [pid 5147] write(3, "1000", 4 [pid 5144] <... openat resumed>) = 6 [pid 5143] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5144] ioctl(6, LOOP_SET_FD, 5 [pid 5142] ioctl(6, LOOP_SET_FD, 5 [pid 5144] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] ioctl(6, LOOP_CLR_FD [pid 5142] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5147] <... write resumed>) = 4 [pid 5144] ioctl(6, LOOP_CLR_FD [pid 5143] <... ioctl resumed>) = 0 [pid 5142] close(6 [pid 5147] close(3 [pid 5144] <... ioctl resumed>) = 0 [pid 5142] <... close resumed>) = 0 [pid 5147] <... close resumed>) = 0 [pid 5142] close(5 [pid 5144] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5144] close(6) = 0 [pid 5144] close(5 [pid 5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5143] ioctl(6, LOOP_SET_FD, 5 [pid 5147] <... openat resumed>) = 3 [pid 5143] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5143] close(6) = 0 [ 73.672894][ T5145] syz-executor223 (5145): drop_caches: 1 [ 73.706809][ T5146] syz-executor223 (5146): drop_caches: 1 [pid 5147] <... openat resumed>) = 4 [pid 5143] close(5 [pid 5147] sendfile(4, 3, [88] [pid 5144] <... close resumed>) = 0 [pid 5144] creat("./file1", 000) = 5 [pid 5143] <... close resumed>) = 0 [pid 5144] exit_group(0) = ? [pid 5143] creat("./file1", 000) = 5 [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ [pid 5144] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...> [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5148 [pid 5029] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x555556477660, 24) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5148] <... prctl resumed>) = 0 [pid 5148] setpgid(0, 0 [pid 5029] <... openat resumed>) = 3 [pid 5148] <... setpgid resumed>) = 0 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] <... ioctl resumed>) = 0 [pid 5148] write(3, "1000", 4 [pid 5142] <... close resumed>) = 0 [pid 5142] creat("./file1", 000 [pid 5029] close(3 [pid 5148] <... write resumed>) = 4 [pid 5029] <... close resumed>) = 0 [pid 5148] close(3 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] <... close resumed>) = 0 [pid 5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 ./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x555556477660, 24 [pid 5148] sendfile(4, 3, [88] [pid 5149] <... set_robust_list resumed>) = 0 [pid 5142] <... creat resumed>) = 5 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5149 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5142] exit_group(0 [pid 5149] <... prctl resumed>) = 0 [pid 5145] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5142] <... exit_group resumed>) = ? [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5142] +++ exited with 0 +++ [pid 5149] close(3) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=5 /* 0.05 s */} --- [pid 5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5031] <... restart_syscall resumed>) = 0 [pid 5149] sendfile(4, 3, [88] [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5146] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5031] <... openat resumed>) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5150 attached , child_tidptr=0x555556477650) = 5150 [pid 5150] set_robust_list(0x555556477660, 24) = 0 [pid 5145] <... write resumed>) = 2097152 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5150] setpgid(0, 0) = 0 [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5150] write(3, "1000", 4) = 4 [pid 5150] close(3) = 0 [pid 5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5145] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5145] ioctl(6, LOOP_SET_FD, 5 [pid 5150] <... openat resumed>) = 3 [pid 5145] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] ioctl(6, LOOP_CLR_FD [pid 5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5145] <... ioctl resumed>) = 0 [pid 5150] <... openat resumed>) = 4 [pid 5146] <... write resumed>) = 2097152 [pid 5145] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5145] close(6) = 0 [pid 5145] close(5 [pid 5150] sendfile(4, 3, [88] [pid 5146] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5145] <... close resumed>) = 0 [pid 5145] creat("./file1", 000) = 5 [pid 5145] exit_group(0) = ? [pid 5145] +++ exited with 0 +++ [ 73.873891][ T5148] syz-executor223 (5148): drop_caches: 1 [ 73.910159][ T5149] syz-executor223 (5149): drop_caches: 1 [pid 5148] <... sendfile resumed> => [95], 7) = 7 [pid 5146] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5148] memfd_create("syzkaller", 0) = 5 [pid 5146] <... openat resumed>) = 6 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] ioctl(6, LOOP_SET_FD, 5 [pid 5148] <... mmap resumed>) = 0x7ff2a0544000 [pid 5146] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] ioctl(6, LOOP_CLR_FD [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5146] <... ioctl resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5147] <... sendfile resumed> => [95], 7) = 7 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5147] memfd_create("syzkaller", 0 [pid 5146] ioctl(6, LOOP_SET_FD, 5 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5151 attached [pid 5147] <... memfd_create resumed>) = 5 [pid 5146] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] set_robust_list(0x555556477660, 24 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] close(6 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5151 [pid 5151] <... set_robust_list resumed>) = 0 [pid 5147] <... mmap resumed>) = 0x7ff2a0544000 [pid 5146] <... close resumed>) = 0 [pid 5146] close(5 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5149] <... sendfile resumed> => [95], 7) = 7 [pid 5149] memfd_create("syzkaller", 0 [pid 5151] <... prctl resumed>) = 0 [ 73.920477][ T5147] syz-executor223 (5147): drop_caches: 1 [pid 5149] <... memfd_create resumed>) = 5 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5151] setpgid(0, 0) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5146] <... close resumed>) = 0 [pid 5151] write(3, "1000", 4 [pid 5146] creat("./file1", 000 [pid 5151] <... write resumed>) = 4 [pid 5146] <... creat resumed>) = 5 [pid 5151] close(3 [pid 5146] exit_group(0 [pid 5151] <... close resumed>) = 0 [pid 5147] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5146] <... exit_group resumed>) = ? [pid 5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5146] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5152 [pid 5151] <... openat resumed>) = 4 [pid 5151] sendfile(4, 3, [88] [pid 5148] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152./strace-static-x86_64: Process 5152 attached [pid 5152] set_robust_list(0x555556477660, 24) = 0 [pid 5150] <... sendfile resumed> => [95], 7) = 7 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] setpgid(0, 0) = 0 [pid 5150] memfd_create("syzkaller", 0) = 5 [ 74.029920][ T5150] syz-executor223 (5150): drop_caches: 1 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] <... write resumed>) = 2097152 [pid 5152] <... openat resumed>) = 3 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5149] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5148] <... write resumed>) = 2097152 [pid 5147] munmap(0x7ff2a0544000, 138412032 [pid 5152] write(3, "1000", 4 [pid 5150] <... mmap resumed>) = 0x7ff2a0544000 [pid 5147] <... munmap resumed>) = 0 [pid 5152] <... write resumed>) = 4 [pid 5152] close(3) = 0 [pid 5148] munmap(0x7ff2a0544000, 138412032 [pid 5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5148] <... munmap resumed>) = 0 [pid 5152] <... openat resumed>) = 3 [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] <... openat resumed>) = 6 [pid 5152] <... openat resumed>) = 4 [pid 5147] ioctl(6, LOOP_SET_FD, 5 [pid 5152] sendfile(4, 3, [88] [pid 5147] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5147] ioctl(6, LOOP_CLR_FD) = 0 [pid 5148] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5148] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5148] ioctl(6, LOOP_CLR_FD) = 0 [pid 5148] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5148] close(6) = 0 [pid 5148] close(5 [pid 5147] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5147] close(6) = 0 [pid 5149] <... write resumed>) = 2097152 [pid 5147] close(5 [pid 5148] <... close resumed>) = 0 [pid 5151] <... sendfile resumed> => [95], 7) = 7 [pid 5147] <... close resumed>) = 0 [pid 5151] memfd_create("syzkaller", 0) = 5 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5148] creat("./file1", 000) = 5 [pid 5148] exit_group(0) = ? [ 74.111393][ T5151] syz-executor223 (5151): drop_caches: 1 [pid 5149] munmap(0x7ff2a0544000, 138412032 [pid 5148] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...> [pid 5147] creat("./file1", 000 [pid 5036] <... restart_syscall resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x555556477660, 24 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5153 [pid 5153] <... set_robust_list resumed>) = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5149] <... munmap resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5149] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5153] <... openat resumed>) = 3 [pid 5149] ioctl(6, LOOP_SET_FD, 5 [pid 5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5153] sendfile(4, 3, [88] [pid 5147] <... creat resumed>) = 5 [pid 5147] exit_group(0) = ? [pid 5149] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] ioctl(6, LOOP_CLR_FD) = 0 [pid 5149] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5147] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5149] close(6 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5149] <... close resumed>) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5154 [pid 5149] close(5./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x555556477660, 24) = 0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5154] setpgid(0, 0) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3) = 0 [pid 5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5154] sendfile(4, 3, [88] [pid 5150] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5149] <... close resumed>) = 0 [pid 5149] creat("./file1", 000) = 5 [pid 5149] exit_group(0) = ? [pid 5149] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x555556477660, 24) = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5155 [pid 5155] <... prctl resumed>) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5152] <... sendfile resumed> => [95], 7) = 7 [pid 5151] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5150] <... write resumed>) = 2097152 [pid 5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5152] memfd_create("syzkaller", 0 [pid 5155] <... openat resumed>) = 4 [pid 5152] <... memfd_create resumed>) = 5 [pid 5155] sendfile(4, 3, [88] [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5150] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5150] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5150] ioctl(6, LOOP_CLR_FD) = 0 [ 74.272537][ T5152] syz-executor223 (5152): drop_caches: 1 [pid 5150] ioctl(6, LOOP_SET_FD, 5 [pid 5153] <... sendfile resumed> => [95], 7) = 7 [pid 5153] memfd_create("syzkaller", 0 [pid 5150] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] close(6 [pid 5153] <... memfd_create resumed>) = 5 [pid 5151] <... write resumed>) = 2097152 [pid 5150] <... close resumed>) = 0 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5150] close(5 [pid 5153] <... mmap resumed>) = 0x7ff2a0544000 [pid 5152] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 74.316922][ T5153] syz-executor223 (5153): drop_caches: 1 [pid 5151] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5150] <... close resumed>) = 0 [pid 5150] creat("./file1", 000) = 5 [pid 5150] exit_group(0) = ? [pid 5151] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5150] +++ exited with 0 +++ [pid 5151] <... openat resumed>) = 6 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=9 /* 0.09 s */} --- [pid 5151] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5151] ioctl(6, LOOP_CLR_FD) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5153] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5152] <... write resumed>) = 2097152 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5154] <... sendfile resumed> => [95], 7) = 7 [pid 5031] <... ioctl resumed>) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5156 attached [pid 5156] set_robust_list(0x555556477660, 24) = 0 [pid 5154] memfd_create("syzkaller", 0 [pid 5151] ioctl(6, LOOP_SET_FD, 5 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5156 [pid 5152] munmap(0x7ff2a0544000, 138412032 [pid 5151] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5151] close(6) = 0 [pid 5151] close(5 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5156] setpgid(0, 0) = 0 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5156] write(3, "1000", 4) = 4 [pid 5156] close(3) = 0 [pid 5152] <... munmap resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5154] <... memfd_create resumed>) = 5 [pid 5156] <... openat resumed>) = 3 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5154] <... mmap resumed>) = 0x7ff2a0544000 [pid 5156] <... openat resumed>) = 4 [pid 5156] sendfile(4, 3, [88] [pid 5152] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [ 74.378640][ T5154] syz-executor223 (5154): drop_caches: 1 [pid 5152] ioctl(6, LOOP_SET_FD, 5 [pid 5151] <... close resumed>) = 0 [pid 5152] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5153] <... write resumed>) = 2097152 [pid 5152] ioctl(6, LOOP_CLR_FD) = 0 [pid 5151] creat("./file1", 000 [pid 5152] ioctl(6, LOOP_SET_FD, 5 [pid 5151] <... creat resumed>) = 5 [pid 5152] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] close(6 [pid 5151] exit_group(0 [pid 5153] munmap(0x7ff2a0544000, 138412032 [pid 5152] <... close resumed>) = 0 [pid 5155] <... sendfile resumed> => [95], 7) = 7 [pid 5152] close(5 [pid 5151] <... exit_group resumed>) = ? [pid 5155] memfd_create("syzkaller", 0 [pid 5153] <... munmap resumed>) = 0 [pid 5151] +++ exited with 0 +++ [pid 5155] <... memfd_create resumed>) = 5 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=5 /* 0.05 s */} --- [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5030] <... restart_syscall resumed>) = 0 [pid 5155] <... mmap resumed>) = 0x7ff2a0544000 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5153] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3 [pid 5153] <... openat resumed>) = 6 [pid 5030] <... close resumed>) = 0 [pid 5153] ioctl(6, LOOP_SET_FD, 5 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5153] ioctl(6, LOOP_CLR_FD) = 0 [pid 5154] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5153] ioctl(6, LOOP_SET_FD, 5 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5157 [pid 5153] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5153] close(6) = 0 [pid 5153] close(5./strace-static-x86_64: Process 5157 attached [pid 5152] <... close resumed>) = 0 [ 74.442244][ T5155] syz-executor223 (5155): drop_caches: 1 [pid 5157] set_robust_list(0x555556477660, 24 [pid 5152] creat("./file1", 000 [pid 5157] <... set_robust_list resumed>) = 0 [pid 5154] <... write resumed>) = 2097152 [pid 5153] <... close resumed>) = 0 [pid 5152] <... creat resumed>) = 5 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5153] creat("./file1", 000 [pid 5152] exit_group(0) = ? [pid 5153] <... creat resumed>) = 5 [pid 5153] exit_group(0) = ? [pid 5157] <... prctl resumed>) = 0 [pid 5153] +++ exited with 0 +++ [pid 5152] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=4 /* 0.04 s */} --- [pid 5157] setpgid(0, 0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...> [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5036] <... restart_syscall resumed>) = 0 [pid 5157] <... setpgid resumed>) = 0 [pid 5155] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5154] munmap(0x7ff2a0544000, 138412032 [pid 5034] <... openat resumed>) = 3 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5036] <... openat resumed>) = 3 [pid 5034] <... ioctl resumed>) = 0 [pid 5034] close(3 [pid 5157] <... openat resumed>) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5034] <... close resumed>) = 0 [pid 5036] <... ioctl resumed>) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached [pid 5157] write(3, "1000", 4 [pid 5036] close(3 [pid 5158] set_robust_list(0x555556477660, 24 [pid 5157] <... write resumed>) = 4 [pid 5036] <... close resumed>) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5158 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5159 attached [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] set_robust_list(0x555556477660, 24 [pid 5158] <... prctl resumed>) = 0 [pid 5156] <... sendfile resumed> => [95], 7) = 7 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5158] setpgid(0, 0 [pid 5157] close(3 [pid 5154] <... munmap resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5159 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5158] <... setpgid resumed>) = 0 [pid 5157] <... close resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5159] <... prctl resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] setpgid(0, 0 [pid 5158] <... openat resumed>) = 3 [pid 5154] <... openat resumed>) = 6 [pid 5159] <... setpgid resumed>) = 0 [pid 5158] write(3, "1000", 4 [pid 5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5154] ioctl(6, LOOP_SET_FD, 5 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5158] <... write resumed>) = 4 [pid 5157] <... openat resumed>) = 3 [pid 5154] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5159] write(3, "1000", 4 [pid 5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5159] <... write resumed>) = 4 [pid 5154] ioctl(6, LOOP_CLR_FD [pid 5159] close(3) = 0 [pid 5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5158] close(3 [pid 5157] <... openat resumed>) = 4 [pid 5156] memfd_create("syzkaller", 0 [pid 5155] <... write resumed>) = 2097152 [pid 5154] <... ioctl resumed>) = 0 [pid 5159] <... openat resumed>) = 3 [pid 5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5157] sendfile(4, 3, [88] [pid 5158] <... close resumed>) = 0 [pid 5156] <... memfd_create resumed>) = 5 [pid 5155] munmap(0x7ff2a0544000, 138412032 [pid 5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5154] ioctl(6, LOOP_SET_FD, 5 [pid 5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5158] sendfile(4, 3, [88] [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5154] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5154] close(6) = 0 [pid 5159] <... openat resumed>) = 4 [pid 5156] <... mmap resumed>) = 0x7ff2a0544000 [pid 5155] <... munmap resumed>) = 0 [pid 5154] close(5 [pid 5159] sendfile(4, 3, [88] [pid 5155] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5154] <... close resumed>) = 0 [pid 5154] creat("./file1", 000 [pid 5155] <... openat resumed>) = 6 [pid 5154] <... creat resumed>) = 5 [pid 5154] exit_group(0 [pid 5155] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5154] <... exit_group resumed>) = ? [ 74.548557][ T5156] syz-executor223 (5156): drop_caches: 1 [pid 5155] ioctl(6, LOOP_CLR_FD [pid 5154] +++ exited with 0 +++ [pid 5155] <... ioctl resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5155] ioctl(6, LOOP_SET_FD, 5 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5155] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5160 ./strace-static-x86_64: Process 5160 attached [pid 5160] set_robust_list(0x555556477660, 24) = 0 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5160] setpgid(0, 0) = 0 [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] close(6 [pid 5160] write(3, "1000", 4 [pid 5155] <... close resumed>) = 0 [pid 5160] <... write resumed>) = 4 [pid 5160] close(3) = 0 [pid 5160] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5160] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5160] sendfile(4, 3, [88] [pid 5156] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5155] close(5) = 0 [pid 5155] creat("./file1", 000) = 5 [pid 5159] <... sendfile resumed> => [95], 7) = 7 [pid 5155] exit_group(0 [pid 5159] memfd_create("syzkaller", 0 [pid 5156] <... write resumed>) = 2097152 [pid 5155] <... exit_group resumed>) = ? [pid 5159] <... memfd_create resumed>) = 5 [pid 5156] munmap(0x7ff2a0544000, 138412032 [pid 5155] +++ exited with 0 +++ [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5159] <... mmap resumed>) = 0x7ff2a0544000 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5161 attached [pid 5156] <... munmap resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5161 [pid 5161] set_robust_list(0x555556477660, 24) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5156] <... openat resumed>) = 6 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] ioctl(6, LOOP_SET_FD, 5 [pid 5161] <... openat resumed>) = 3 [pid 5161] write(3, "1000", 4) = 4 [ 74.685483][ T5159] syz-executor223 (5159): drop_caches: 1 [ 74.712206][ T5158] syz-executor223 (5158): drop_caches: 1 [pid 5161] close(3 [pid 5156] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5161] <... close resumed>) = 0 [pid 5156] ioctl(6, LOOP_CLR_FD) = 0 [pid 5158] <... sendfile resumed> => [95], 7) = 7 [pid 5158] memfd_create("syzkaller", 0 [pid 5156] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5156] close(6 [pid 5158] <... memfd_create resumed>) = 5 [pid 5156] <... close resumed>) = 0 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5156] close(5 [pid 5157] <... sendfile resumed> => [95], 7) = 7 [pid 5157] memfd_create("syzkaller", 0) = 5 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5156] <... close resumed>) = 0 [pid 5161] <... openat resumed>) = 3 [ 74.730739][ T5157] syz-executor223 (5157): drop_caches: 1 [pid 5160] <... sendfile resumed> => [95], 7) = 7 [pid 5159] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5156] creat("./file1", 000 [pid 5160] memfd_create("syzkaller", 0 [pid 5161] <... openat resumed>) = 4 [pid 5161] sendfile(4, 3, [88] [pid 5156] <... creat resumed>) = 5 [pid 5160] <... memfd_create resumed>) = 5 [pid 5156] exit_group(0 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] <... exit_group resumed>) = ? [pid 5160] <... mmap resumed>) = 0x7ff2a0544000 [pid 5156] +++ exited with 0 +++ [pid 5159] <... write resumed>) = 2097152 [pid 5158] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5159] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached , child_tidptr=0x555556477650) = 5162 [pid 5159] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5162] set_robust_list(0x555556477660, 24 [pid 5159] <... openat resumed>) = 6 [pid 5162] <... set_robust_list resumed>) = 0 [ 74.768564][ T5160] syz-executor223 (5160): drop_caches: 1 [pid 5159] ioctl(6, LOOP_SET_FD, 5 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5159] ioctl(6, LOOP_CLR_FD [pid 5162] <... prctl resumed>) = 0 [pid 5159] <... ioctl resumed>) = 0 [pid 5162] setpgid(0, 0) = 0 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5159] close(6) = 0 [pid 5159] close(5 [pid 5162] <... openat resumed>) = 3 [pid 5159] <... close resumed>) = 0 [pid 5157] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5162] write(3, "1000", 4) = 4 [pid 5160] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5162] close(3) = 0 [pid 5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5157] <... write resumed>) = 2097152 [pid 5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5158] <... write resumed>) = 2097152 [pid 5157] munmap(0x7ff2a0544000, 138412032 [pid 5162] <... openat resumed>) = 4 [pid 5159] creat("./file1", 000 [pid 5158] munmap(0x7ff2a0544000, 138412032 [pid 5162] sendfile(4, 3, [88] [pid 5157] <... munmap resumed>) = 0 [pid 5160] <... write resumed>) = 2097152 [pid 5157] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5159] <... creat resumed>) = 5 [pid 5157] <... openat resumed>) = 6 [pid 5157] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5157] ioctl(6, LOOP_CLR_FD) = 0 [pid 5159] exit_group(0 [pid 5158] <... munmap resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5157] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5157] close(6 [pid 5159] <... exit_group resumed>) = ? [pid 5158] <... openat resumed>) = 6 [pid 5157] <... close resumed>) = 0 [pid 5157] close(5 [pid 5159] +++ exited with 0 +++ [pid 5158] ioctl(6, LOOP_SET_FD, 5 [pid 5157] <... close resumed>) = 0 [pid 5160] munmap(0x7ff2a0544000, 138412032 [pid 5158] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5158] ioctl(6, LOOP_CLR_FD [pid 5160] <... munmap resumed>) = 0 [pid 5158] <... ioctl resumed>) = 0 [pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5161] <... sendfile resumed> => [95], 7) = 7 [pid 5161] memfd_create("syzkaller", 0 [pid 5158] ioctl(6, LOOP_SET_FD, 5 [pid 5161] <... memfd_create resumed>) = 5 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5161] <... mmap resumed>) = 0x7ff2a0544000 [ 74.870946][ T5161] syz-executor223 (5161): drop_caches: 1 [pid 5158] close(6 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5160] <... openat resumed>) = 6 [pid 5158] <... close resumed>) = 0 [pid 5160] ioctl(6, LOOP_SET_FD, 5 [pid 5158] close(5 [pid 5036] <... openat resumed>) = 3 [pid 5160] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5157] creat("./file1", 000 [pid 5160] ioctl(6, LOOP_CLR_FD [pid 5157] <... creat resumed>) = 5 [pid 5036] <... ioctl resumed>) = 0 [pid 5160] <... ioctl resumed>) = 0 [pid 5157] exit_group(0) = ? [pid 5036] close(3 [pid 5157] +++ exited with 0 +++ [pid 5160] ioctl(6, LOOP_SET_FD, 5 [pid 5036] <... close resumed>) = 0 [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5160] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached [pid 5160] close(6 [pid 5163] set_robust_list(0x555556477660, 24 [pid 5160] <... close resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5163 [pid 5160] close(5) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5163] <... set_robust_list resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5158] <... close resumed>) = 0 ./strace-static-x86_64: Process 5164 attached [pid 5164] set_robust_list(0x555556477660, 24) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5164 [pid 5158] creat("./file1", 000) = 5 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5164] setpgid(0, 0) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] <... prctl resumed>) = 0 [pid 5161] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5164] write(3, "1000", 4) = 4 [pid 5164] close(3) = 0 [pid 5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5164] sendfile(4, 3, [88] [pid 5163] setpgid(0, 0) = 0 [pid 5158] exit_group(0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5158] <... exit_group resumed>) = ? [pid 5163] <... openat resumed>) = 3 [pid 5158] +++ exited with 0 +++ [pid 5163] write(3, "1000", 4) = 4 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5163] close(3) = 0 [pid 5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5163] <... openat resumed>) = 3 [pid 5034] <... openat resumed>) = 3 [pid 5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5163] <... openat resumed>) = 4 [pid 5034] <... ioctl resumed>) = 0 [pid 5163] sendfile(4, 3, [88] [pid 5034] close(3 [pid 5162] <... sendfile resumed> => [95], 7) = 7 [pid 5034] <... close resumed>) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5165 [pid 5162] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5165 attached ) = 5 [pid 5160] creat("./file1", 000 [pid 5165] set_robust_list(0x555556477660, 24 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5160] <... creat resumed>) = 5 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5162] <... mmap resumed>) = 0x7ff2a0544000 [pid 5160] exit_group(0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5160] <... exit_group resumed>) = ? [pid 5165] <... prctl resumed>) = 0 [pid 5160] +++ exited with 0 +++ [pid 5165] setpgid(0, 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5165] <... setpgid resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5028] restart_syscall(<... resuming interrupted clone ...> [pid 5165] <... openat resumed>) = 3 [pid 5028] <... restart_syscall resumed>) = 0 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5165] <... close resumed>) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5165] <... openat resumed>) = 3 [pid 5028] <... ioctl resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [ 74.985658][ T5162] syz-executor223 (5162): drop_caches: 1 [pid 5028] close(3 [pid 5165] <... openat resumed>) = 4 [pid 5028] <... close resumed>) = 0 [pid 5165] sendfile(4, 3, [88] [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached , child_tidptr=0x555556477650) = 5166 [pid 5166] set_robust_list(0x555556477660, 24) = 0 [pid 5161] <... write resumed>) = 2097152 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5166] setpgid(0, 0) = 0 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5166] write(3, "1000", 4) = 4 [pid 5166] close(3) = 0 [pid 5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5166] sendfile(4, 3, [88] [pid 5161] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5161] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5161] ioctl(6, LOOP_CLR_FD) = 0 [pid 5161] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5161] close(6) = 0 [pid 5161] close(5 [pid 5162] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5161] <... close resumed>) = 0 [pid 5161] creat("./file1", 000) = 5 [pid 5161] exit_group(0) = ? [pid 5161] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3 [pid 5163] <... sendfile resumed> => [95], 7) = 7 [pid 5029] <... close resumed>) = 0 [pid 5163] memfd_create("syzkaller", 0 [pid 5162] <... write resumed>) = 2097152 [ 75.112946][ T5163] syz-executor223 (5163): drop_caches: 1 [ 75.120603][ T5164] syz-executor223 (5164): drop_caches: 1 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached [pid 5163] <... memfd_create resumed>) = 5 [pid 5162] munmap(0x7ff2a0544000, 138412032 [pid 5167] set_robust_list(0x555556477660, 24 [pid 5164] <... sendfile resumed> => [95], 7) = 7 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5167 [pid 5167] <... set_robust_list resumed>) = 0 [pid 5164] memfd_create("syzkaller", 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5167] <... prctl resumed>) = 0 [pid 5163] <... mmap resumed>) = 0x7ff2a0544000 [pid 5164] <... memfd_create resumed>) = 5 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5167] setpgid(0, 0) = 0 [pid 5162] <... munmap resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] <... sendfile resumed> => [95], 7) = 7 [pid 5167] <... openat resumed>) = 3 [pid 5165] <... sendfile resumed> => [95], 7) = 7 [pid 5162] <... openat resumed>) = 6 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3 [pid 5162] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5162] ioctl(6, LOOP_CLR_FD [pid 5167] <... close resumed>) = 0 [pid 5166] memfd_create("syzkaller", 0 [pid 5165] memfd_create("syzkaller", 0 [pid 5162] <... ioctl resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5166] <... memfd_create resumed>) = 5 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5167] <... openat resumed>) = 3 [pid 5166] <... mmap resumed>) = 0x7ff2a0544000 [pid 5165] <... memfd_create resumed>) = 5 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5162] ioctl(6, LOOP_SET_FD, 5 [pid 5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5162] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5162] close(6 [pid 5167] <... openat resumed>) = 4 [ 75.160773][ T5165] syz-executor223 (5165): drop_caches: 1 [ 75.165478][ T5166] syz-executor223 (5166): drop_caches: 1 [pid 5167] sendfile(4, 3, [88] [pid 5166] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5163] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5162] <... close resumed>) = 0 [pid 5164] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5162] close(5 [pid 5165] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5164] <... write resumed>) = 2097152 [pid 5164] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5164] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5164] ioctl(6, LOOP_CLR_FD) = 0 [pid 5164] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5164] close(6) = 0 [pid 5164] close(5 [pid 5163] <... write resumed>) = 2097152 [pid 5166] <... write resumed>) = 2097152 [pid 5163] munmap(0x7ff2a0544000, 138412032 [pid 5162] <... close resumed>) = 0 [pid 5162] creat("./file1", 000) = 5 [pid 5166] munmap(0x7ff2a0544000, 138412032 [pid 5162] exit_group(0) = ? [pid 5163] <... munmap resumed>) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5166] <... munmap resumed>) = 0 [pid 5162] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5031] <... restart_syscall resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5168 attached [pid 5168] set_robust_list(0x555556477660, 24) = 0 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] setpgid(0, 0) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5168] write(3, "1000", 4) = 4 [pid 5168] close(3 [pid 5166] <... openat resumed>) = 6 [pid 5168] <... close resumed>) = 0 [pid 5166] ioctl(6, LOOP_SET_FD, 5 [pid 5165] <... write resumed>) = 2097152 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5168 [pid 5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5166] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5168] <... openat resumed>) = 3 [pid 5166] ioctl(6, LOOP_CLR_FD [pid 5163] ioctl(6, LOOP_SET_FD, 5 [pid 5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5165] munmap(0x7ff2a0544000, 138412032 [pid 5164] <... close resumed>) = 0 [pid 5164] creat("./file1", 000 [pid 5168] <... openat resumed>) = 4 [pid 5168] sendfile(4, 3, [88] [pid 5165] <... munmap resumed>) = 0 [pid 5164] <... creat resumed>) = 5 [pid 5164] exit_group(0 [pid 5166] <... ioctl resumed>) = 0 [pid 5163] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] ioctl(6, LOOP_CLR_FD) = 0 [pid 5166] ioctl(6, LOOP_SET_FD, 5 [pid 5163] ioctl(6, LOOP_SET_FD, 5 [pid 5166] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] close(6 [pid 5163] close(6 [pid 5166] <... close resumed>) = 0 [pid 5163] <... close resumed>) = 0 [pid 5166] close(5 [pid 5163] close(5 [pid 5164] <... exit_group resumed>) = ? [pid 5164] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5165] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5165] ioctl(6, LOOP_SET_FD, 5 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5165] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] ioctl(6, LOOP_CLR_FD [pid 5030] <... openat resumed>) = 3 [pid 5165] <... ioctl resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3 [pid 5163] <... close resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5169 ./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x555556477660, 24) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] ioctl(6, LOOP_SET_FD, 5 [pid 5169] <... prctl resumed>) = 0 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] <... sendfile resumed> => [95], 7) = 7 [pid 5169] <... openat resumed>) = 3 [pid 5165] close(6 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3 [pid 5167] memfd_create("syzkaller", 0 [pid 5169] <... close resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5165] close(5 [pid 5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5169] sendfile(4, 3, [88] [pid 5166] <... close resumed>) = 0 [pid 5163] creat("./file1", 000) = 5 [pid 5166] creat("./file1", 000 [pid 5165] <... close resumed>) = 0 [pid 5165] creat("./file1", 000 [pid 5167] <... memfd_create resumed>) = 5 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] <... creat resumed>) = 5 [pid 5166] <... creat resumed>) = 5 [ 75.343506][ T5167] syz-executor223 (5167): drop_caches: 1 [pid 5163] exit_group(0 [pid 5167] <... mmap resumed>) = 0x7ff2a0544000 [pid 5166] exit_group(0 [pid 5165] exit_group(0 [pid 5163] <... exit_group resumed>) = ? [pid 5163] +++ exited with 0 +++ [pid 5166] <... exit_group resumed>) = ? [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached [pid 5165] <... exit_group resumed>) = ? [pid 5170] set_robust_list(0x555556477660, 24 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5170 [pid 5170] <... set_robust_list resumed>) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5166] +++ exited with 0 +++ [pid 5170] setpgid(0, 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5170] <... setpgid resumed>) = 0 [pid 5028] restart_syscall(<... resuming interrupted clone ...> [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] +++ exited with 0 +++ [pid 5028] <... restart_syscall resumed>) = 0 [pid 5170] <... openat resumed>) = 3 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5170] write(3, "1000", 4) = 4 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x555556477660, 24 [pid 5170] close(3 [pid 5171] <... set_robust_list resumed>) = 0 [pid 5170] <... close resumed>) = 0 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5171 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5171] <... prctl resumed>) = 0 [pid 5170] <... openat resumed>) = 3 [pid 5171] setpgid(0, 0 [pid 5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5171] <... setpgid resumed>) = 0 [pid 5170] <... openat resumed>) = 4 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5172 [pid 5170] sendfile(4, 3, [88]./strace-static-x86_64: Process 5172 attached [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5171] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5171] sendfile(4, 3, [88] [pid 5172] set_robust_list(0x555556477660, 24) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5172] setpgid(0, 0) = 0 [pid 5167] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5172] write(3, "1000", 4) = 4 [pid 5172] close(3) = 0 [pid 5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 75.470074][ T5168] syz-executor223 (5168): drop_caches: 1 [ 75.495251][ T5169] syz-executor223 (5169): drop_caches: 1 [pid 5172] sendfile(4, 3, [88] [pid 5170] <... sendfile resumed> => [95], 7) = 7 [pid 5169] <... sendfile resumed> => [95], 7) = 7 [pid 5169] memfd_create("syzkaller", 0) = 5 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5168] <... sendfile resumed> => [95], 7) = 7 [pid 5167] <... write resumed>) = 2097152 [pid 5168] memfd_create("syzkaller", 0) = 5 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5170] memfd_create("syzkaller", 0 [ 75.528348][ T5170] syz-executor223 (5170): drop_caches: 1 [ 75.550128][ T5171] syz-executor223 (5171): drop_caches: 1 [pid 5167] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5170] <... memfd_create resumed>) = 5 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5171] <... sendfile resumed> => [95], 7) = 7 [pid 5170] <... mmap resumed>) = 0x7ff2a0544000 [pid 5167] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5171] memfd_create("syzkaller", 0 [pid 5167] <... openat resumed>) = 6 [pid 5167] ioctl(6, LOOP_SET_FD, 5 [pid 5171] <... memfd_create resumed>) = 5 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5167] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] ioctl(6, LOOP_CLR_FD) = 0 [pid 5169] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5167] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [ 75.583330][ T5172] syz-executor223 (5172): drop_caches: 1 [pid 5167] close(6 [pid 5172] <... sendfile resumed> => [95], 7) = 7 [pid 5167] <... close resumed>) = 0 [pid 5172] memfd_create("syzkaller", 0) = 5 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5167] close(5) = 0 [pid 5168] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5169] <... write resumed>) = 2097152 [pid 5167] creat("./file1", 000 [pid 5170] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5167] <... creat resumed>) = 5 [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x555556477660, 24 [pid 5171] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5173] <... set_robust_list resumed>) = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5173 [pid 5173] <... prctl resumed>) = 0 [pid 5170] <... write resumed>) = 2097152 [pid 5168] <... write resumed>) = 2097152 [pid 5168] munmap(0x7ff2a0544000, 138412032 [pid 5169] munmap(0x7ff2a0544000, 138412032 [pid 5173] setpgid(0, 0 [pid 5168] <... munmap resumed>) = 0 [pid 5173] <... setpgid resumed>) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5168] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3 [pid 5168] <... openat resumed>) = 6 [pid 5173] <... close resumed>) = 0 [pid 5168] ioctl(6, LOOP_SET_FD, 5 [pid 5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5172] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5169] <... munmap resumed>) = 0 [pid 5168] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5168] ioctl(6, LOOP_CLR_FD) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5169] <... openat resumed>) = 6 [pid 5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5169] ioctl(6, LOOP_SET_FD, 5 [pid 5173] <... openat resumed>) = 4 [pid 5169] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5173] sendfile(4, 3, [88] [pid 5169] ioctl(6, LOOP_CLR_FD) = 0 [pid 5170] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5168] ioctl(6, LOOP_SET_FD, 5 [pid 5169] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5168] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] close(6) = 0 [pid 5169] close(5) = 0 [pid 5169] creat("./file1", 000) = 5 [pid 5170] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5169] exit_group(0 [pid 5170] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5169] <... exit_group resumed>) = ? [pid 5168] close(6 [pid 5170] ioctl(6, LOOP_CLR_FD [pid 5168] <... close resumed>) = 0 [pid 5170] <... ioctl resumed>) = 0 [pid 5168] close(5 [pid 5169] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5170] ioctl(6, LOOP_SET_FD, 5 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5170] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5030] <... openat resumed>) = 3 [pid 5170] close(6 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5170] <... close resumed>) = 0 [pid 5030] <... ioctl resumed>) = 0 [pid 5170] close(5 [pid 5030] close(3 [pid 5168] <... close resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5174 attached [pid 5171] <... write resumed>) = 2097152 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5174 [pid 5171] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5174] set_robust_list(0x555556477660, 24) = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5174] setpgid(0, 0) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] write(3, "1000", 4) = 4 [pid 5174] close(3) = 0 [pid 5174] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5171] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5171] <... openat resumed>) = 6 [pid 5174] <... openat resumed>) = 4 [pid 5171] ioctl(6, LOOP_SET_FD, 5 [pid 5174] sendfile(4, 3, [88] [pid 5171] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5170] <... close resumed>) = 0 [pid 5168] creat("./file1", 000 [pid 5172] <... write resumed>) = 2097152 [pid 5168] <... creat resumed>) = 5 [pid 5172] munmap(0x7ff2a0544000, 138412032 [pid 5168] exit_group(0 [pid 5171] ioctl(6, LOOP_CLR_FD) = 0 [pid 5170] creat("./file1", 000) = 5 [pid 5170] exit_group(0) = ? [pid 5172] <... munmap resumed>) = 0 [pid 5170] +++ exited with 0 +++ [pid 5168] <... exit_group resumed>) = ? [pid 5171] ioctl(6, LOOP_SET_FD, 5 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=6 /* 0.06 s */} --- [pid 5171] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5171] close(6) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5171] close(5 [pid 5036] <... openat resumed>) = 3 [pid 5168] +++ exited with 0 +++ [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5175 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5031] <... openat resumed>) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5172] <... openat resumed>) = 6 ./strace-static-x86_64: Process 5175 attached [pid 5172] ioctl(6, LOOP_SET_FD, 5 [pid 5175] set_robust_list(0x555556477660, 24 [pid 5172] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5172] ioctl(6, LOOP_CLR_FD [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5176 ./strace-static-x86_64: Process 5176 attached [pid 5172] <... ioctl resumed>) = 0 [pid 5176] set_robust_list(0x555556477660, 24) = 0 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5176] setpgid(0, 0) = 0 [pid 5172] ioctl(6, LOOP_SET_FD, 5 [pid 5171] <... close resumed>) = 0 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... openat resumed>) = 3 [pid 5175] <... prctl resumed>) = 0 [pid 5176] write(3, "1000", 4 [pid 5175] setpgid(0, 0 [pid 5172] close(6 [pid 5176] <... write resumed>) = 4 [pid 5175] <... setpgid resumed>) = 0 [pid 5172] <... close resumed>) = 0 [pid 5176] close(3 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5172] close(5 [pid 5176] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5175] <... openat resumed>) = 3 [pid 5176] <... openat resumed>) = 3 [pid 5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5171] creat("./file1", 000) = 5 [pid 5176] sendfile(4, 3, [88] [pid 5171] exit_group(0) = ? [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3 [pid 5171] +++ exited with 0 +++ [pid 5175] <... close resumed>) = 0 [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5172] <... close resumed>) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5175] <... openat resumed>) = 3 [pid 5172] creat("./file1", 000 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5028] <... ioctl resumed>) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5172] <... creat resumed>) = 5 [pid 5175] <... openat resumed>) = 4 [pid 5172] exit_group(0 [pid 5175] sendfile(4, 3, [88] [pid 5172] <... exit_group resumed>) = ? [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5177] set_robust_list(0x555556477660, 24) = 0 [pid 5172] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=6 /* 0.06 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5034] <... openat resumed>) = 3 [pid 5177] <... prctl resumed>) = 0 [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5177] setpgid(0, 0 [pid 5034] <... ioctl resumed>) = 0 [pid 5177] <... setpgid resumed>) = 0 [pid 5034] close(3 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] <... close resumed>) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5178 ./strace-static-x86_64: Process 5178 attached [pid 5178] set_robust_list(0x555556477660, 24) = 0 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5178] setpgid(0, 0) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... openat resumed>) = 3 [pid 5178] <... openat resumed>) = 3 [pid 5177] write(3, "1000", 4 [pid 5178] write(3, "1000", 4 [pid 5177] <... write resumed>) = 4 [pid 5178] <... write resumed>) = 4 [pid 5177] close(3 [pid 5178] close(3 [pid 5177] <... close resumed>) = 0 [pid 5178] <... close resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5177] <... openat resumed>) = 3 [pid 5178] <... openat resumed>) = 3 [pid 5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5178] <... openat resumed>) = 4 [pid 5177] <... openat resumed>) = 4 [pid 5177] sendfile(4, 3, [88] [pid 5178] sendfile(4, 3, [88] [pid 5174] <... sendfile resumed> => [95], 7) = 7 [pid 5173] <... sendfile resumed> => [95], 7) = 7 [pid 5174] memfd_create("syzkaller", 0) = 5 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5173] memfd_create("syzkaller", 0 [pid 5176] <... sendfile resumed> => [95], 7) = 7 [pid 5176] memfd_create("syzkaller", 0 [pid 5173] <... memfd_create resumed>) = 5 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 75.957483][ T5173] syz-executor223 (5173): drop_caches: 1 [ 75.967036][ T5174] syz-executor223 (5174): drop_caches: 1 [ 75.992247][ T5176] syz-executor223 (5176): drop_caches: 1 [pid 5176] <... memfd_create resumed>) = 5 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5175] <... sendfile resumed> => [95], 7) = 7 [pid 5175] memfd_create("syzkaller", 0 [pid 5174] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5175] <... memfd_create resumed>) = 5 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5177] <... sendfile resumed> => [95], 7) = 7 [pid 5177] memfd_create("syzkaller", 0 [pid 5178] <... sendfile resumed> => [95], 7) = 7 [pid 5178] memfd_create("syzkaller", 0 [pid 5177] <... memfd_create resumed>) = 5 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5174] <... write resumed>) = 2097152 [pid 5174] munmap(0x7ff2a0544000, 138412032 [pid 5178] <... memfd_create resumed>) = 5 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5174] <... munmap resumed>) = 0 [ 76.034264][ T5175] syz-executor223 (5175): drop_caches: 1 [ 76.052816][ T5178] syz-executor223 (5178): drop_caches: 1 [ 76.063449][ T5177] syz-executor223 (5177): drop_caches: 1 [pid 5174] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5174] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5175] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5174] ioctl(6, LOOP_CLR_FD [pid 5173] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5174] <... ioctl resumed>) = 0 [pid 5176] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5174] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5174] close(6) = 0 [pid 5174] close(5) = 0 [pid 5174] creat("./file1", 000 [pid 5175] <... write resumed>) = 2097152 [pid 5174] <... creat resumed>) = 5 [pid 5174] exit_group(0) = ? [pid 5173] <... write resumed>) = 2097152 [pid 5174] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5030] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5173] munmap(0x7ff2a0544000, 138412032 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached [pid 5179] set_robust_list(0x555556477660, 24) = 0 [pid 5178] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5173] <... munmap resumed>) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5175] munmap(0x7ff2a0544000, 138412032 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5179 [pid 5173] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5179] <... prctl resumed>) = 0 [pid 5175] <... munmap resumed>) = 0 [pid 5173] <... openat resumed>) = 6 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] ioctl(6, LOOP_SET_FD, 5 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5173] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5179] <... openat resumed>) = 3 [pid 5173] ioctl(6, LOOP_CLR_FD [pid 5179] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5173] <... ioctl resumed>) = 0 [pid 5179] <... openat resumed>) = 4 [pid 5179] sendfile(4, 3, [88] [pid 5176] <... write resumed>) = 2097152 [pid 5173] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5177] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5176] munmap(0x7ff2a0544000, 138412032 [pid 5173] close(6 [pid 5175] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5175] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5175] ioctl(6, LOOP_CLR_FD) = 0 [pid 5175] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5175] close(6) = 0 [pid 5175] close(5 [pid 5176] <... munmap resumed>) = 0 [pid 5175] <... close resumed>) = 0 [pid 5173] <... close resumed>) = 0 [pid 5173] close(5) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6 [pid 5175] creat("./file1", 000 [pid 5176] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5175] <... creat resumed>) = 5 [pid 5176] ioctl(6, LOOP_CLR_FD) = 0 [pid 5175] exit_group(0 [pid 5178] <... write resumed>) = 2097152 [pid 5178] munmap(0x7ff2a0544000, 138412032 [pid 5175] <... exit_group resumed>) = ? [pid 5176] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5176] close(6 [pid 5177] <... write resumed>) = 2097152 [pid 5176] <... close resumed>) = 0 [pid 5178] <... munmap resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5178] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5178] ioctl(6, LOOP_CLR_FD) = 0 [pid 5178] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5178] close(6) = 0 [pid 5178] close(5 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=4 /* 0.04 s */} --- [pid 5177] munmap(0x7ff2a0544000, 138412032 [pid 5176] close(5) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5178] <... close resumed>) = 0 [pid 5177] <... munmap resumed>) = 0 [pid 5176] creat("./file1", 000 [pid 5173] creat("./file1", 000 [pid 5036] <... openat resumed>) = 3 [pid 5178] creat("./file1", 000 [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5176] <... creat resumed>) = 5 [pid 5173] <... creat resumed>) = 5 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5173] exit_group(0) = ? [pid 5173] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3 [pid 5036] <... ioctl resumed>) = 0 [pid 5029] <... close resumed>) = 0 [pid 5036] close(3 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5177] <... openat resumed>) = 6 [pid 5036] <... close resumed>) = 0 [pid 5178] <... creat resumed>) = 5 [pid 5177] ioctl(6, LOOP_SET_FD, 5 [pid 5176] exit_group(0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5180 ./strace-static-x86_64: Process 5181 attached ./strace-static-x86_64: Process 5180 attached [pid 5178] exit_group(0 [pid 5177] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... exit_group resumed>) = ? [pid 5180] set_robust_list(0x555556477660, 24) = 0 [pid 5178] <... exit_group resumed>) = ? [pid 5181] set_robust_list(0x555556477660, 24 [pid 5177] ioctl(6, LOOP_CLR_FD [pid 5176] +++ exited with 0 +++ [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5181 [pid 5181] <... set_robust_list resumed>) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... ioctl resumed>) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5180] <... prctl resumed>) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] <... sendfile resumed> => [95], 7) = 7 [pid 5178] +++ exited with 0 +++ [pid 5031] <... openat resumed>) = 3 [pid 5181] <... prctl resumed>) = 0 [pid 5180] <... openat resumed>) = 3 [pid 5179] memfd_create("syzkaller", 0 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5181] setpgid(0, 0 [pid 5180] write(3, "1000", 4 [pid 5181] <... setpgid resumed>) = 0 [pid 5180] <... write resumed>) = 4 [pid 5031] <... ioctl resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] close(3 [pid 5031] close(3 [pid 5181] <... openat resumed>) = 3 [pid 5180] <... close resumed>) = 0 [pid 5177] ioctl(6, LOOP_SET_FD, 5 [pid 5181] write(3, "1000", 4 [pid 5179] <... memfd_create resumed>) = 5 [pid 5177] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5031] <... close resumed>) = 0 [pid 5181] <... write resumed>) = 4 [pid 5177] close(6 [pid 5181] close(3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] <... close resumed>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5181] <... close resumed>) = 0 [pid 5179] <... mmap resumed>) = 0x7ff2a0544000 [pid 5177] close(5 [pid 5034] <... openat resumed>) = 3 [pid 5181] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5181] <... openat resumed>) = 3 [pid 5034] <... ioctl resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5034] close(3 [pid 5181] <... openat resumed>) = 4 [pid 5034] <... close resumed>) = 0 [pid 5181] sendfile(4, 3, [88] [pid 5180] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5180] <... openat resumed>) = 3 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5182 ./strace-static-x86_64: Process 5183 attached ./strace-static-x86_64: Process 5182 attached [pid 5180] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5183] set_robust_list(0x555556477660, 24 [pid 5182] set_robust_list(0x555556477660, 24 [pid 5180] sendfile(4, 3, [88] [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5183 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5182] <... prctl resumed>) = 0 [pid 5182] setpgid(0, 0) = 0 [pid 5183] <... prctl resumed>) = 0 [ 76.332755][ T5179] syz-executor223 (5179): drop_caches: 1 [pid 5183] setpgid(0, 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... setpgid resumed>) = 0 [pid 5182] <... openat resumed>) = 3 [pid 5177] <... close resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5182] write(3, "1000", 4 [pid 5183] <... openat resumed>) = 3 [pid 5182] <... write resumed>) = 4 [pid 5182] close(3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5182] <... close resumed>) = 0 [pid 5177] creat("./file1", 000 [pid 5183] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5182] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5177] <... creat resumed>) = 5 [pid 5182] <... openat resumed>) = 3 [pid 5183] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5182] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5177] exit_group(0 [pid 5183] sendfile(4, 3, [88] [pid 5182] <... openat resumed>) = 4 [pid 5177] <... exit_group resumed>) = ? [pid 5177] +++ exited with 0 +++ [pid 5182] sendfile(4, 3, [88] [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5181] <... sendfile resumed> => [95], 7) = 7 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5181] memfd_create("syzkaller", 0) = 5 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5184 attached ) = 0x7ff2a0544000 [pid 5184] set_robust_list(0x555556477660, 24 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5184 [pid 5179] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5184] setpgid(0, 0) = 0 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5184] write(3, "1000", 4) = 4 [pid 5184] close(3) = 0 [pid 5184] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5184] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 76.452902][ T5181] syz-executor223 (5181): drop_caches: 1 [pid 5184] sendfile(4, 3, [88] [pid 5179] <... write resumed>) = 2097152 [pid 5180] <... sendfile resumed> => [95], 7) = 7 [pid 5180] memfd_create("syzkaller", 0) = 5 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 76.495770][ T5180] syz-executor223 (5180): drop_caches: 1 [pid 5179] munmap(0x7ff2a0544000, 138412032 [pid 5181] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5183] <... sendfile resumed> => [95], 7) = 7 [pid 5179] <... munmap resumed>) = 0 [pid 5183] memfd_create("syzkaller", 0 [pid 5182] <... sendfile resumed> => [95], 7) = 7 [pid 5179] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5183] <... memfd_create resumed>) = 5 [pid 5179] <... openat resumed>) = 6 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5182] memfd_create("syzkaller", 0 [pid 5179] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5179] ioctl(6, LOOP_CLR_FD) = 0 [pid 5182] <... memfd_create resumed>) = 5 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5179] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5179] close(6) = 0 [ 76.544779][ T5183] syz-executor223 (5183): drop_caches: 1 [ 76.551985][ T5182] syz-executor223 (5182): drop_caches: 1 [pid 5179] close(5) = 0 [pid 5180] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5179] creat("./file1", 000) = 5 [pid 5179] exit_group(0 [pid 5181] <... write resumed>) = 2097152 [pid 5181] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5184] <... sendfile resumed> => [95], 7) = 7 [pid 5181] ioctl(6, LOOP_SET_FD, 5 [pid 5183] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5179] <... exit_group resumed>) = ? [pid 5184] memfd_create("syzkaller", 0) = 5 [pid 5179] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5180] <... write resumed>) = 2097152 [pid 5030] close(3) = 0 [ 76.590665][ T5184] syz-executor223 (5184): drop_caches: 1 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5185 [pid 5182] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5180] munmap(0x7ff2a0544000, 138412032./strace-static-x86_64: Process 5185 attached [pid 5185] set_robust_list(0x555556477660, 24) = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5181] ioctl(6, LOOP_CLR_FD) = 0 [pid 5185] <... prctl resumed>) = 0 [pid 5180] <... munmap resumed>) = 0 [pid 5185] setpgid(0, 0 [pid 5180] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5185] <... setpgid resumed>) = 0 [pid 5181] ioctl(6, LOOP_SET_FD, 5 [pid 5180] ioctl(6, LOOP_SET_FD, 5 [pid 5181] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5181] close(6 [pid 5180] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] <... openat resumed>) = 3 [pid 5181] <... close resumed>) = 0 [pid 5181] close(5 [pid 5180] ioctl(6, LOOP_CLR_FD [pid 5185] write(3, "1000", 4 [pid 5180] <... ioctl resumed>) = 0 [pid 5185] <... write resumed>) = 4 [pid 5183] <... write resumed>) = 2097152 [pid 5182] <... write resumed>) = 2097152 [pid 5185] close(3 [pid 5183] munmap(0x7ff2a0544000, 138412032 [pid 5182] munmap(0x7ff2a0544000, 138412032 [pid 5185] <... close resumed>) = 0 [pid 5180] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5180] close(6) = 0 [pid 5180] close(5 [pid 5185] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5185] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5185] sendfile(4, 3, [88] [pid 5183] <... munmap resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5180] <... close resumed>) = 0 [pid 5183] <... openat resumed>) = 6 [pid 5181] <... close resumed>) = 0 [pid 5183] ioctl(6, LOOP_SET_FD, 5 [pid 5182] <... munmap resumed>) = 0 [pid 5181] creat("./file1", 000 [pid 5183] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] ioctl(6, LOOP_CLR_FD [pid 5181] <... creat resumed>) = 5 [pid 5183] <... ioctl resumed>) = 0 [pid 5182] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5181] exit_group(0) = ? [pid 5182] <... openat resumed>) = 6 [pid 5184] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5182] ioctl(6, LOOP_SET_FD, 5 [pid 5181] +++ exited with 0 +++ [pid 5180] creat("./file1", 000 [pid 5183] ioctl(6, LOOP_SET_FD, 5 [pid 5180] <... creat resumed>) = 5 [pid 5183] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5183] close(6 [pid 5180] exit_group(0 [pid 5183] <... close resumed>) = 0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5036] ioctl(3, LOOP_CLR_FD) = 0 [pid 5183] close(5 [pid 5036] close(3) = 0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5186 [ 76.709037][ T778] cfg80211: failed to load regulatory.db ./strace-static-x86_64: Process 5186 attached [pid 5180] <... exit_group resumed>) = ? [pid 5180] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x555556477660, 24) = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5187] close(3) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5187 [pid 5187] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5187] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5187] sendfile(4, 3, [88] [pid 5186] set_robust_list(0x555556477660, 24 [pid 5182] ioctl(6, LOOP_CLR_FD [pid 5186] <... set_robust_list resumed>) = 0 [pid 5183] <... close resumed>) = 0 [pid 5182] <... ioctl resumed>) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] creat("./file1", 000 [pid 5186] <... prctl resumed>) = 0 [pid 5183] <... creat resumed>) = 5 [pid 5182] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5182] close(6) = 0 [pid 5182] close(5 [pid 5183] exit_group(0) = ? [pid 5182] <... close resumed>) = 0 [pid 5184] <... write resumed>) = 2097152 [pid 5186] setpgid(0, 0 [pid 5184] munmap(0x7ff2a0544000, 138412032 [pid 5183] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5186] <... setpgid resumed>) = 0 [pid 5184] <... munmap resumed>) = 0 [pid 5182] creat("./file1", 000 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5182] <... creat resumed>) = 5 [pid 5031] <... openat resumed>) = 3 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5186] <... openat resumed>) = 3 [pid 5184] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5182] exit_group(0 [pid 5031] <... ioctl resumed>) = 0 [pid 5186] write(3, "1000", 4 [pid 5182] <... exit_group resumed>) = ? [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=5 /* 0.05 s */} --- [pid 5186] <... write resumed>) = 4 [pid 5186] close(3 [pid 5034] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5188 attached [pid 5186] <... close resumed>) = 0 [pid 5184] <... openat resumed>) = 6 [pid 5188] set_robust_list(0x555556477660, 24 [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5188 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5184] ioctl(6, LOOP_SET_FD, 5 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5184] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5034] <... restart_syscall resumed>) = 0 [pid 5184] ioctl(6, LOOP_CLR_FD) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5186] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5034] <... openat resumed>) = 3 [pid 5184] ioctl(6, LOOP_SET_FD, 5 [pid 5186] <... openat resumed>) = 3 [pid 5184] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5034] ioctl(3, LOOP_CLR_FD [pid 5186] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5184] close(6 [pid 5188] <... prctl resumed>) = 0 [pid 5186] <... openat resumed>) = 4 [pid 5034] <... ioctl resumed>) = 0 [pid 5184] <... close resumed>) = 0 [pid 5186] sendfile(4, 3, [88] [pid 5184] close(5 [pid 5188] setpgid(0, 0 [pid 5034] close(3 [pid 5188] <... setpgid resumed>) = 0 [pid 5034] <... close resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached [pid 5188] <... openat resumed>) = 3 [pid 5188] write(3, "1000", 4 [pid 5189] set_robust_list(0x555556477660, 24) = 0 [pid 5188] <... write resumed>) = 4 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5188] close(3) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5189 [pid 5189] <... prctl resumed>) = 0 [ 76.849704][ T5185] syz-executor223 (5185): drop_caches: 1 [pid 5188] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5189] setpgid(0, 0 [pid 5188] <... openat resumed>) = 3 [pid 5189] <... setpgid resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] <... openat resumed>) = 4 [pid 5188] sendfile(4, 3, [88] [pid 5189] <... openat resumed>) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5185] <... sendfile resumed> => [95], 7) = 7 [pid 5184] <... close resumed>) = 0 [pid 5185] memfd_create("syzkaller", 0 [pid 5189] close(3) = 0 [pid 5189] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5185] <... memfd_create resumed>) = 5 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5189] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5189] sendfile(4, 3, [88] [pid 5184] creat("./file1", 000) = 5 [pid 5187] <... sendfile resumed> => [95], 7) = 7 [pid 5187] memfd_create("syzkaller", 0) = 5 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5184] exit_group(0 [pid 5185] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5184] <... exit_group resumed>) = ? [pid 5184] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 5028] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [ 76.942087][ T5187] syz-executor223 (5187): drop_caches: 1 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached [pid 5190] set_robust_list(0x555556477660, 24 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5190 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5190] setpgid(0, 0) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5190] write(3, "1000", 4) = 4 [pid 5190] close(3) = 0 [pid 5190] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5190] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5190] sendfile(4, 3, [88] [pid 5186] <... sendfile resumed> => [95], 7) = 7 [pid 5187] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5188] <... sendfile resumed> => [95], 7) = 7 [pid 5185] <... write resumed>) = 2097152 [pid 5188] memfd_create("syzkaller", 0) = 5 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5186] memfd_create("syzkaller", 0 [pid 5188] <... mmap resumed>) = 0x7ff2a0544000 [ 77.043361][ T5188] syz-executor223 (5188): drop_caches: 1 [ 77.076438][ T5186] syz-executor223 (5186): drop_caches: 1 [pid 5186] <... memfd_create resumed>) = 5 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5185] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5189] <... sendfile resumed> => [95], 7) = 7 [pid 5185] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5185] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5185] ioctl(6, LOOP_CLR_FD) = 0 [pid 5189] memfd_create("syzkaller", 0 [pid 5185] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5189] <... memfd_create resumed>) = 5 [ 77.108970][ T5189] syz-executor223 (5189): drop_caches: 1 [pid 5185] close(6 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] <... close resumed>) = 0 [pid 5185] close(5 [pid 5189] <... mmap resumed>) = 0x7ff2a0544000 [pid 5187] <... write resumed>) = 2097152 [pid 5185] <... close resumed>) = 0 [pid 5186] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5187] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5188] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5187] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6 [pid 5187] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5187] ioctl(6, LOOP_CLR_FD) = 0 [pid 5185] creat("./file1", 000 [pid 5187] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5187] close(6) = 0 [pid 5187] close(5) = 0 [pid 5185] <... creat resumed>) = 5 [pid 5185] exit_group(0) = ? [pid 5189] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5185] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5187] creat("./file1", 000 [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5188] <... write resumed>) = 2097152 [pid 5187] <... creat resumed>) = 5 [pid 5030] <... restart_syscall resumed>) = 0 [pid 5186] <... write resumed>) = 2097152 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5187] exit_group(0 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5187] <... exit_group resumed>) = ? [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5191 ./strace-static-x86_64: Process 5191 attached [pid 5187] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5186] munmap(0x7ff2a0544000, 138412032 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5191] set_robust_list(0x555556477660, 24 [pid 5190] <... sendfile resumed> => [95], 7) = 7 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5188] munmap(0x7ff2a0544000, 138412032 [pid 5029] <... ioctl resumed>) = 0 [pid 5191] <... prctl resumed>) = 0 [pid 5190] memfd_create("syzkaller", 0 [pid 5189] <... write resumed>) = 2097152 [pid 5029] close(3 [pid 5191] setpgid(0, 0 [pid 5029] <... close resumed>) = 0 [pid 5191] <... setpgid resumed>) = 0 [pid 5190] <... memfd_create resumed>) = 5 [pid 5186] <... munmap resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5186] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6 [pid 5186] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5186] ioctl(6, LOOP_CLR_FD) = 0 [pid 5188] <... munmap resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5192 ./strace-static-x86_64: Process 5192 attached [pid 5191] <... openat resumed>) = 3 [pid 5192] set_robust_list(0x555556477660, 24 [pid 5186] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5186] close(6) = 0 [pid 5188] <... openat resumed>) = 6 [pid 5186] close(5 [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] write(3, "1000", 4 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5189] munmap(0x7ff2a0544000, 138412032 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] <... write resumed>) = 4 [pid 5190] <... mmap resumed>) = 0x7ff2a0544000 [pid 5191] close(3) = 0 [pid 5188] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5188] ioctl(6, LOOP_CLR_FD) = 0 [pid 5191] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5188] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5192] setpgid(0, 0 [pid 5188] close(6) = 0 [pid 5188] close(5 [pid 5192] <... setpgid resumed>) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5189] <... munmap resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5189] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5191] <... openat resumed>) = 4 [pid 5191] sendfile(4, 3, [88] [pid 5189] <... openat resumed>) = 6 [pid 5189] ioctl(6, LOOP_SET_FD, 5 [pid 5192] <... openat resumed>) = 3 [pid 5189] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5186] <... close resumed>) = 0 [pid 5192] write(3, "1000", 4 [pid 5189] ioctl(6, LOOP_CLR_FD) = 0 [pid 5192] <... write resumed>) = 4 [pid 5190] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5188] <... close resumed>) = 0 [pid 5192] close(3) = 0 [pid 5192] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5186] creat("./file1", 000) = 5 [pid 5189] ioctl(6, LOOP_SET_FD, 5 [pid 5186] exit_group(0 [pid 5189] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [ 77.294825][ T5190] syz-executor223 (5190): drop_caches: 1 [pid 5189] close(6) = 0 [pid 5189] close(5 [pid 5186] <... exit_group resumed>) = ? [pid 5188] creat("./file1", 000) = 5 [pid 5192] <... openat resumed>) = 3 [pid 5192] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5188] exit_group(0 [pid 5192] sendfile(4, 3, [88] [pid 5188] <... exit_group resumed>) = ? [pid 5188] +++ exited with 0 +++ [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5193 [pid 5186] +++ exited with 0 +++ [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5193 attached [pid 5190] <... write resumed>) = 2097152 [pid 5036] <... restart_syscall resumed>) = 0 [pid 5189] <... close resumed>) = 0 [pid 5193] set_robust_list(0x555556477660, 24 [pid 5189] creat("./file1", 000 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5189] <... creat resumed>) = 5 [pid 5189] exit_group(0 [pid 5036] <... openat resumed>) = 3 [pid 5193] <... set_robust_list resumed>) = 0 [pid 5189] <... exit_group resumed>) = ? [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5189] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5034] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x555556477660, 24) = 0 [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5194] setpgid(0, 0) = 0 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5194 [pid 5194] write(3, "1000", 4) = 4 [pid 5194] close(3) = 0 [pid 5194] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5194] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5194] sendfile(4, 3, [88] [pid 5036] <... ioctl resumed>) = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] close(3 [pid 5193] <... prctl resumed>) = 0 [pid 5036] <... close resumed>) = 0 [pid 5193] setpgid(0, 0 [pid 5190] munmap(0x7ff2a0544000, 138412032 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5195 attached [pid 5193] <... setpgid resumed>) = 0 [pid 5190] <... munmap resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5195 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5195] set_robust_list(0x555556477660, 24 [pid 5193] <... openat resumed>) = 3 [pid 5195] <... set_robust_list resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5193] write(3, "1000", 4 [pid 5190] <... openat resumed>) = 6 [pid 5195] <... prctl resumed>) = 0 [pid 5193] <... write resumed>) = 4 [pid 5190] ioctl(6, LOOP_SET_FD, 5 [pid 5195] setpgid(0, 0 [pid 5190] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5195] <... setpgid resumed>) = 0 [pid 5193] close(3 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5193] <... close resumed>) = 0 [pid 5190] ioctl(6, LOOP_CLR_FD [pid 5195] <... openat resumed>) = 3 [pid 5193] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5192] <... sendfile resumed> => [95], 7) = 7 [pid 5191] <... sendfile resumed> => [95], 7) = 7 [pid 5190] <... ioctl resumed>) = 0 [pid 5195] write(3, "1000", 4 [pid 5193] <... openat resumed>) = 3 [pid 5195] <... write resumed>) = 4 [pid 5193] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5195] close(3) = 0 [pid 5193] <... openat resumed>) = 4 [pid 5195] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5190] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5190] close(6) = 0 [pid 5190] close(5 [pid 5192] memfd_create("syzkaller", 0 [pid 5191] memfd_create("syzkaller", 0 [pid 5195] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5194] <... sendfile resumed> => [95], 7) = 7 [pid 5193] sendfile(4, 3, [88] [pid 5192] <... memfd_create resumed>) = 5 [pid 5191] <... memfd_create resumed>) = 5 [pid 5190] <... close resumed>) = 0 [pid 5195] sendfile(4, 3, [88] [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5194] memfd_create("syzkaller", 0 [pid 5190] creat("./file1", 000 [pid 5194] <... memfd_create resumed>) = 5 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5190] <... creat resumed>) = 5 [ 77.461060][ T5191] syz-executor223 (5191): drop_caches: 1 [ 77.461483][ T5192] syz-executor223 (5192): drop_caches: 1 [ 77.488907][ T5194] syz-executor223 (5194): drop_caches: 1 [pid 5190] exit_group(0) = ? [pid 5190] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5196 ./strace-static-x86_64: Process 5196 attached [pid 5196] set_robust_list(0x555556477660, 24) = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5196] setpgid(0, 0) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5196] write(3, "1000", 4) = 4 [pid 5196] close(3) = 0 [pid 5196] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5192] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5191] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5196] <... openat resumed>) = 3 [pid 5196] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5196] sendfile(4, 3, [88] [pid 5194] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5191] <... write resumed>) = 2097152 [pid 5191] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5191] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5191] ioctl(6, LOOP_CLR_FD) = 0 [pid 5191] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5191] close(6) = 0 [pid 5191] close(5 [pid 5195] <... sendfile resumed> => [95], 7) = 7 [pid 5194] <... write resumed>) = 2097152 [pid 5193] <... sendfile resumed> => [95], 7) = 7 [pid 5192] <... write resumed>) = 2097152 [pid 5195] memfd_create("syzkaller", 0 [pid 5193] memfd_create("syzkaller", 0 [pid 5192] munmap(0x7ff2a0544000, 138412032 [pid 5193] <... memfd_create resumed>) = 5 [pid 5195] <... memfd_create resumed>) = 5 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5192] <... munmap resumed>) = 0 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] <... mmap resumed>) = 0x7ff2a0544000 [pid 5192] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5195] <... mmap resumed>) = 0x7ff2a0544000 [pid 5192] <... openat resumed>) = 6 [ 77.640427][ T5193] syz-executor223 (5193): drop_caches: 1 [ 77.653030][ T5195] syz-executor223 (5195): drop_caches: 1 [pid 5192] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5191] <... close resumed>) = 0 [pid 5194] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5192] ioctl(6, LOOP_CLR_FD) = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5192] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5192] close(6 [pid 5194] <... openat resumed>) = 6 [pid 5192] <... close resumed>) = 0 [pid 5191] creat("./file1", 000) = 5 [pid 5191] exit_group(0) = ? [pid 5191] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x555556477660, 24 [pid 5192] close(5 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5197 [pid 5194] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5194] ioctl(6, LOOP_CLR_FD [pid 5197] <... set_robust_list resumed>) = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5194] <... ioctl resumed>) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5194] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5194] close(6 [pid 5196] <... sendfile resumed> => [95], 7) = 7 [pid 5194] <... close resumed>) = 0 [pid 5197] <... openat resumed>) = 3 [pid 5196] memfd_create("syzkaller", 0 [pid 5194] close(5 [pid 5197] write(3, "1000", 4 [pid 5196] <... memfd_create resumed>) = 5 [pid 5194] <... close resumed>) = 0 [pid 5192] <... close resumed>) = 0 [pid 5197] <... write resumed>) = 4 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5195] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5197] close(3 [pid 5194] creat("./file1", 000) = 5 [pid 5194] exit_group(0) = ? [pid 5197] <... close resumed>) = 0 [pid 5194] +++ exited with 0 +++ [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5197] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5192] creat("./file1", 000 [ 77.735188][ T5196] syz-executor223 (5196): drop_caches: 1 [pid 5197] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5193] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5192] <... creat resumed>) = 5 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5197] <... openat resumed>) = 4 [pid 5034] <... openat resumed>) = 3 [pid 5197] sendfile(4, 3, [88] [pid 5192] exit_group(0 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5198 attached [pid 5198] set_robust_list(0x555556477660, 24) = 0 [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5198] setpgid(0, 0) = 0 [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5198] write(3, "1000", 4) = 4 [pid 5198] close(3) = 0 [pid 5198] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5192] <... exit_group resumed>) = ? [pid 5034] <... clone resumed>, child_tidptr=0x555556477650) = 5198 [pid 5198] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5198] sendfile(4, 3, [88] [pid 5192] +++ exited with 0 +++ [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached , child_tidptr=0x555556477650) = 5199 [pid 5199] set_robust_list(0x555556477660, 24) = 0 [pid 5193] <... write resumed>) = 2097152 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5195] <... write resumed>) = 2097152 [pid 5199] <... prctl resumed>) = 0 [pid 5193] munmap(0x7ff2a0544000, 138412032 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5195] munmap(0x7ff2a0544000, 138412032 [pid 5193] <... munmap resumed>) = 0 [pid 5199] write(3, "1000", 4 [pid 5195] <... munmap resumed>) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5199] <... write resumed>) = 4 [pid 5199] close(3 [pid 5193] <... openat resumed>) = 6 [pid 5199] <... close resumed>) = 0 [pid 5196] <... write resumed>) = 2097152 [pid 5195] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5193] ioctl(6, LOOP_SET_FD, 5 [pid 5199] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5195] <... openat resumed>) = 6 [pid 5193] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5199] <... openat resumed>) = 3 [pid 5195] ioctl(6, LOOP_SET_FD, 5 [pid 5193] ioctl(6, LOOP_CLR_FD [pid 5199] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5195] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5193] <... ioctl resumed>) = 0 [pid 5199] <... openat resumed>) = 4 [pid 5195] ioctl(6, LOOP_CLR_FD [pid 5199] sendfile(4, 3, [88] [pid 5195] <... ioctl resumed>) = 0 [pid 5195] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5195] close(6) = 0 [pid 5196] munmap(0x7ff2a0544000, 138412032 [pid 5195] close(5 [pid 5193] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5193] close(6 [pid 5196] <... munmap resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5193] close(5 [pid 5196] <... openat resumed>) = 6 [pid 5198] <... sendfile resumed> => [95], 7) = 7 [pid 5198] memfd_create("syzkaller", 0) = 5 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [pid 5197] <... sendfile resumed> => [95], 7) = 7 [pid 5196] ioctl(6, LOOP_SET_FD, 5 [pid 5195] creat("./file1", 000 [pid 5196] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5195] <... creat resumed>) = 5 [pid 5195] exit_group(0 [pid 5196] ioctl(6, LOOP_CLR_FD) = 0 [pid 5195] <... exit_group resumed>) = ? [pid 5195] +++ exited with 0 +++ [pid 5193] <... close resumed>) = 0 [pid 5036] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5036] restart_syscall(<... resuming interrupted clone ...> [pid 5197] memfd_create("syzkaller", 0 [pid 5193] creat("./file1", 000 [pid 5036] <... restart_syscall resumed>) = 0 [pid 5196] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5193] <... creat resumed>) = 5 [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5196] close(6) = 0 [pid 5036] <... openat resumed>) = 3 [pid 5196] close(5 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5197] <... memfd_create resumed>) = 5 [pid 5196] <... close resumed>) = 0 [pid 5036] <... ioctl resumed>) = 0 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2a0544000 [ 77.899150][ T5198] syz-executor223 (5198): drop_caches: 1 [ 77.909705][ T5197] syz-executor223 (5197): drop_caches: 1 [pid 5036] close(3) = 0 [pid 5193] exit_group(0 [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5200 attached [pid 5193] <... exit_group resumed>) = ? [pid 5200] set_robust_list(0x555556477660, 24 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5200 [pid 5200] <... set_robust_list resumed>) = 0 [pid 5193] +++ exited with 0 +++ [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5031] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3) = 0 [pid 5196] creat("./file1", 000 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5196] <... creat resumed>) = 5 [pid 5196] exit_group(0./strace-static-x86_64: Process 5201 attached [pid 5200] setpgid(0, 0 [pid 5196] <... exit_group resumed>) = ? [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5201 [pid 5201] set_robust_list(0x555556477660, 24 [pid 5200] <... setpgid resumed>) = 0 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] <... set_robust_list resumed>) = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] <... openat resumed>) = 3 [pid 5196] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5201] <... prctl resumed>) = 0 [pid 5200] write(3, "1000", 4 [pid 5201] setpgid(0, 0 [pid 5200] <... write resumed>) = 4 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5201] <... setpgid resumed>) = 0 [pid 5200] close(3 [pid 5028] <... openat resumed>) = 3 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] <... close resumed>) = 0 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5200] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5028] <... ioctl resumed>) = 0 [pid 5028] close(3) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556477650) = 5202 [pid 5201] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5202 attached [pid 5201] write(3, "1000", 4 [pid 5200] <... openat resumed>) = 3 [pid 5201] <... write resumed>) = 4 [pid 5200] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5201] close(3 [pid 5200] <... openat resumed>) = 4 [pid 5202] set_robust_list(0x555556477660, 24 [pid 5200] sendfile(4, 3, [88] [pid 5202] <... set_robust_list resumed>) = 0 [pid 5201] <... close resumed>) = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5202] <... prctl resumed>) = 0 [pid 5201] <... openat resumed>) = 3 [pid 5202] setpgid(0, 0 [pid 5201] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5202] <... setpgid resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] sendfile(4, 3, [88] [pid 5202] <... openat resumed>) = 3 [pid 5202] write(3, "1000", 4 [pid 5198] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5202] <... write resumed>) = 4 [pid 5199] <... sendfile resumed> => [95], 7) = 7 [pid 5202] close(3) = 0 [pid 5202] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5202] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5199] memfd_create("syzkaller", 0 [pid 5202] sendfile(4, 3, [88] [pid 5197] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5199] <... memfd_create resumed>) = 5 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5198] <... write resumed>) = 2097152 [ 78.007884][ T5199] syz-executor223 (5199): drop_caches: 1 [pid 5199] <... mmap resumed>) = 0x7ff2a0544000 [pid 5198] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6 [pid 5198] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5198] ioctl(6, LOOP_CLR_FD) = 0 [pid 5198] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5198] close(6) = 0 [pid 5198] close(5) = 0 [pid 5197] <... write resumed>) = 2097152 [pid 5197] munmap(0x7ff2a0544000, 138412032) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5197] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5197] ioctl(6, LOOP_CLR_FD) = 0 [pid 5198] creat("./file1", 000) = 5 [pid 5198] exit_group(0 [pid 5197] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5198] <... exit_group resumed>) = ? [pid 5197] close(6) = 0 [pid 5197] close(5 [pid 5198] +++ exited with 0 +++ [pid 5197] <... close resumed>) = 0 [pid 5034] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = 0 [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5203 attached , child_tidptr=0x555556477650) = 5203 [pid 5203] set_robust_list(0x555556477660, 24) = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5203] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5203] sendfile(4, 3, [88] [pid 5199] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5197] creat("./file1", 000) = 5 [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5030] ioctl(3, LOOP_CLR_FD) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5204 attached [pid 5204] set_robust_list(0x555556477660, 24) = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5204] setpgid(0, 0) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555556477650) = 5204 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] <... sendfile resumed> => [95], 7) = 7 [pid 5204] <... openat resumed>) = 3 [pid 5204] write(3, "1000", 4 [pid 5201] <... sendfile resumed> => [95], 7) = 7 [pid 5200] memfd_create("syzkaller", 0 [pid 5204] <... write resumed>) = 4 [pid 5204] close(3) = 0 [pid 5201] memfd_create("syzkaller", 0 [pid 5204] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5200] <... memfd_create resumed>) = 5 [pid 5201] <... memfd_create resumed>) = 5 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] <... mmap resumed>) = 0x7ff2a0544000 [pid 5200] <... mmap resumed>) = 0x7ff2a0544000 [pid 5204] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5204] sendfile(4, 3, [88] [pid 5202] <... sendfile resumed> => [95], 7) = 7 [pid 5199] <... write resumed>) = 2097152 [pid 5199] munmap(0x7ff2a0544000, 138412032 [pid 5202] memfd_create("syzkaller", 0 [pid 5199] <... munmap resumed>) = 0 [pid 5202] <... memfd_create resumed>) = 5 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5199] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5202] <... mmap resumed>) = 0x7ff2a0544000 [pid 5199] <... openat resumed>) = 6 [pid 5199] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5199] ioctl(6, LOOP_CLR_FD) = 0 [pid 5199] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5199] close(6) = 0 [ 78.155396][ T5200] syz-executor223 (5200): drop_caches: 1 [ 78.163254][ T5201] syz-executor223 (5201): drop_caches: 1 [ 78.180006][ T5202] syz-executor223 (5202): drop_caches: 1 [pid 5199] close(5) = 0 [pid 5203] <... sendfile resumed> => [95], 7) = 7 [pid 5200] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5199] creat("./file1", 000) = 5 [pid 5199] exit_group(0) = ? [pid 5201] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5203] memfd_create("syzkaller", 0) = 5 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5199] +++ exited with 0 +++ [pid 5203] <... mmap resumed>) = 0x7ff2a0544000 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [ 78.258141][ T5203] syz-executor223 (5203): drop_caches: 1 [pid 5029] close(3 [pid 5202] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5201] <... write resumed>) = 2097152 [pid 5029] <... close resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached [pid 5202] <... write resumed>) = 2097152 [pid 5201] munmap(0x7ff2a0544000, 138412032 [pid 5200] <... write resumed>) = 2097152 [pid 5205] set_robust_list(0x555556477660, 24 [pid 5204] <... sendfile resumed> => [95], 7) = 7 [pid 5202] munmap(0x7ff2a0544000, 138412032 [pid 5201] <... munmap resumed>) = 0 [pid 5200] munmap(0x7ff2a0544000, 138412032 [pid 5029] <... clone resumed>, child_tidptr=0x555556477650) = 5205 [pid 5205] <... set_robust_list resumed>) = 0 [pid 5204] memfd_create("syzkaller", 0 [pid 5202] <... munmap resumed>) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5200] <... munmap resumed>) = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5205] <... prctl resumed>) = 0 [pid 5204] <... memfd_create resumed>) = 5 [pid 5200] <... openat resumed>) = 6 [pid 5205] setpgid(0, 0 [pid 5200] ioctl(6, LOOP_SET_FD, 5 [pid 5205] <... setpgid resumed>) = 0 [pid 5201] <... openat resumed>) = 6 [pid 5200] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] ioctl(6, LOOP_SET_FD, 5 [pid 5200] ioctl(6, LOOP_CLR_FD [pid 5205] <... openat resumed>) = 3 [pid 5201] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5200] <... ioctl resumed>) = 0 [pid 5205] write(3, "1000", 4 [pid 5204] <... mmap resumed>) = 0x7ff2a0544000 [pid 5201] ioctl(6, LOOP_CLR_FD [pid 5205] <... write resumed>) = 4 [pid 5201] <... ioctl resumed>) = 0 [pid 5205] close(3) = 0 [pid 5205] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5200] ioctl(6, LOOP_SET_FD, 5 [pid 5205] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5200] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5205] <... openat resumed>) = 4 [pid 5202] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5201] ioctl(6, LOOP_SET_FD, 5 [pid 5200] close(6 [pid 5205] sendfile(4, 3, [88] [pid 5202] <... openat resumed>) = 6 [pid 5201] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5200] <... close resumed>) = 0 [pid 5201] close(6 [pid 5200] close(5 [pid 5203] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5201] <... close resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5202] ioctl(6, LOOP_SET_FD, 5 [pid 5201] close(5 [pid 5202] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5201] <... close resumed>) = 0 [pid 5202] ioctl(6, LOOP_CLR_FD) = 0 [pid 5202] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5202] close(6) = 0 [ 78.337992][ T5204] syz-executor223 (5204): drop_caches: 1 [pid 5202] close(5) = 0 [pid 5202] creat("./file1", 000) = 5 [pid 5201] creat("./file1", 000 [pid 5202] exit_group(0 [pid 5201] <... creat resumed>) = 5 [pid 5202] <... exit_group resumed>) = ? [pid 5200] creat("./file1", 000) = 5 [pid 5201] exit_group(0) = ? [pid 5200] exit_group(0) = ? [pid 5200] +++ exited with 0 +++ [pid 5036] --- 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 5202] +++ exited with 0 +++ [pid 5201] +++ exited with 0 +++ [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5031] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5028] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5028] close(3) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] <... ioctl resumed>) = 0 [pid 5031] close(3 [pid 5028] <... clone resumed>, child_tidptr=0x555556477650) = 5206 [pid 5031] <... close resumed>) = 0 ./strace-static-x86_64: Process 5206 attached [pid 5206] set_robust_list(0x555556477660, 24) = 0 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5206] <... prctl resumed>) = 0 [pid 5206] setpgid(0, 0) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5206] write(3, "1000", 4) = 4 [pid 5036] <... openat resumed>) = 3 [pid 5203] <... write resumed>) = 2097152 [pid 5204] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5036] ioctl(3, LOOP_CLR_FD [pid 5031] <... clone resumed>, child_tidptr=0x555556477650) = 5207 [pid 5036] <... ioctl resumed>) = 0 [pid 5036] close(3 [pid 5206] close(3) = 0 [pid 5036] <... close resumed>) = 0 [pid 5206] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5203] munmap(0x7ff2a0544000, 138412032./strace-static-x86_64: Process 5207 attached [pid 5036] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5208 attached [pid 5207] set_robust_list(0x555556477660, 24 [pid 5206] <... openat resumed>) = 3 [pid 5208] set_robust_list(0x555556477660, 24 [pid 5206] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5208] <... set_robust_list resumed>) = 0 [pid 5206] <... openat resumed>) = 4 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5206] sendfile(4, 3, [88] [pid 5208] <... prctl resumed>) = 0 [pid 5208] setpgid(0, 0 [pid 5203] <... munmap resumed>) = 0 [pid 5208] <... setpgid resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] <... openat resumed>) = 6 [pid 5203] ioctl(6, LOOP_SET_FD, 5 [pid 5208] <... openat resumed>) = 3 [pid 5203] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5203] ioctl(6, LOOP_CLR_FD) = 0 [pid 5208] write(3, "1000", 4) = 4 [pid 5208] close(3 [pid 5207] <... set_robust_list resumed>) = 0 [pid 5208] <... close resumed>) = 0 [pid 5203] ioctl(6, LOOP_SET_FD, 5 [pid 5208] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5208] <... openat resumed>) = 3 [pid 5203] close(6 [pid 5208] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5207] <... prctl resumed>) = 0 [pid 5204] <... write resumed>) = 2097152 [pid 5203] <... close resumed>) = 0 [pid 5036] <... clone resumed>, child_tidptr=0x555556477650) = 5208 [pid 5207] setpgid(0, 0 [pid 5204] munmap(0x7ff2a0544000, 138412032 [pid 5203] close(5 [pid 5204] <... munmap resumed>) = 0 [pid 5208] <... openat resumed>) = 4 [pid 5208] sendfile(4, 3, [88] [pid 5207] <... setpgid resumed>) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] <... sendfile resumed> => [95], 7) = 7 [pid 5204] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6 [pid 5207] <... openat resumed>) = 3 [pid 5205] memfd_create("syzkaller", 0 [pid 5204] ioctl(6, LOOP_SET_FD, 5 [pid 5203] <... close resumed>) = 0 [pid 5207] write(3, "1000", 4 [pid 5204] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5207] <... write resumed>) = 4