./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor638420344 <...> Warning: Permanently added '10.128.0.40' (ED25519) to the list of known hosts. execve("./syz-executor638420344", ["./syz-executor638420344"], 0x7ffca3d6e220 /* 10 vars */) = 0 brk(NULL) = 0x555556ffb000 brk(0x555556ffbd00) = 0x555556ffbd00 arch_prctl(ARCH_SET_FS, 0x555556ffb380) = 0 set_tid_address(0x555556ffb650) = 5047 set_robust_list(0x555556ffb660, 24) = 0 rseq(0x555556ffbca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor638420344", 4096) = 27 getrandom("\x8e\x80\x35\xd5\x76\x34\x53\xca", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556ffbd00 brk(0x55555701cd00) = 0x55555701cd00 brk(0x55555701d000) = 0x55555701d000 mprotect(0x7fa806423000, 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 5048 attached , child_tidptr=0x555556ffb650) = 5048 [pid 5047] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] set_robust_list(0x555556ffb660, 24./strace-static-x86_64: Process 5049 attached [pid 5047] <... clone resumed>, child_tidptr=0x555556ffb650) = 5049 [pid 5049] set_robust_list(0x555556ffb660, 24 [pid 5048] <... set_robust_list resumed>) = 0 [pid 5047] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5050 attached [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5047] <... clone resumed>, child_tidptr=0x555556ffb650) = 5050 [pid 5050] set_robust_list(0x555556ffb660, 24 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] <... openat resumed>) = 3 [pid 5047] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... set_robust_list resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] <... openat resumed>) = 3 [pid 5048] ioctl(3, LOOP_CLR_FD [pid 5049] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5051 attached [pid 5050] <... openat resumed>) = 3 [pid 5049] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5047] <... clone resumed>, child_tidptr=0x555556ffb650) = 5051 [pid 5051] set_robust_list(0x555556ffb660, 24 [pid 5050] ioctl(3, LOOP_CLR_FD [pid 5049] close(3 [pid 5048] close(3 [pid 5047] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... set_robust_list resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5048] <... close resumed>) = 0 [pid 5050] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5052 attached [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] close(3 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5047] <... clone resumed>, child_tidptr=0x555556ffb650) = 5052 [pid 5052] set_robust_list(0x555556ffb660, 24) = 0 ./strace-static-x86_64: Process 5054 attached ./strace-static-x86_64: Process 5053 attached [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] <... openat resumed>) = 3 [pid 5050] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] set_robust_list(0x555556ffb660, 24 [pid 5053] set_robust_list(0x555556ffb660, 24 [pid 5051] ioctl(3, LOOP_CLR_FD [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5054 [pid 5054] <... set_robust_list resumed>) = 0 [pid 5053] <... set_robust_list resumed>) = 0 [pid 5051] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5055 attached [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5053 [pid 5055] set_robust_list(0x555556ffb660, 24 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5055 [pid 5055] <... set_robust_list resumed>) = 0 [pid 5054] <... prctl resumed>) = 0 [pid 5053] <... prctl resumed>) = 0 [pid 5052] ioctl(3, LOOP_CLR_FD [pid 5051] close(3 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5054] setpgid(0, 0 [pid 5053] setpgid(0, 0 [pid 5052] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5051] <... close resumed>) = 0 [pid 5055] <... prctl resumed>) = 0 [pid 5055] setpgid(0, 0 [pid 5054] <... setpgid resumed>) = 0 [pid 5053] <... setpgid resumed>) = 0 [pid 5052] close(3 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... setpgid resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [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 5055] <... openat resumed>) = 3 [pid 5052] <... close resumed>) = 0 ./strace-static-x86_64: Process 5057 attached [pid 5055] write(3, "1000", 4 [pid 5054] <... openat resumed>) = 3 [pid 5053] <... openat resumed>) = 3 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] set_robust_list(0x555556ffb660, 24 [pid 5055] <... write resumed>) = 4 [pid 5057] <... set_robust_list resumed>) = 0 [pid 5055] close(3) = 0 ./strace-static-x86_64: Process 5058 attached [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5054] write(3, "1000", 4 [pid 5053] write(3, "1000", 4 [pid 5058] set_robust_list(0x555556ffb660, 24 [pid 5057] <... prctl resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5054] <... write resumed>) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5057 [pid 5058] <... set_robust_list resumed>) = 0 [pid 5057] setpgid(0, 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5057] <... setpgid resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] close(3 [pid 5053] <... write resumed>) = 4 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... openat resumed>) = 3 [pid 5054] <... close resumed>) = 0 [pid 5053] close(3 [pid 5055] <... openat resumed>) = 4 [pid 5054] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5053] <... close resumed>) = 0 [pid 5058] <... prctl resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] setpgid(0, 0 [pid 5057] write(3, "1000", 4 [pid 5055] sendfile(4, 3, [122] [pid 5054] <... openat resumed>) = 3 [pid 5053] <... openat resumed>) = 3 [pid 5058] <... setpgid resumed>) = 0 [pid 5057] <... write resumed>) = 4 [pid 5054] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5053] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5058 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] close(3 [pid 5054] <... openat resumed>) = 4 [pid 5053] <... openat resumed>) = 4 [pid 5057] <... close resumed>) = 0 [pid 5054] sendfile(4, 3, [122] [pid 5053] sendfile(4, 3, [122] [pid 5057] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 [pid 5058] write(3, "1000", 4) = 4 [pid 5057] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5058] close(3 [pid 5057] <... openat resumed>) = 4 [pid 5057] sendfile(4, 3, [122] [pid 5058] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5058] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 syzkaller login: [ 54.908987][ T5057] syz-executor638 (5057): drop_caches: 3 [ 55.029816][ T5053] syz-executor638 (5053): drop_caches: 3 [pid 5058] sendfile(4, 3, [122] [pid 5057] <... sendfile resumed> => [640], 571) = 518 [ 55.139808][ T5057] syz-executor638 (5057): drop_caches: 3 [ 55.147551][ T5058] syz-executor638 (5058): drop_caches: 3 [pid 5057] memfd_create("syzkaller", 0) = 5 [pid 5057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5053] <... sendfile resumed> => [640], 571) = 518 [ 55.193432][ T5053] syz-executor638 (5053): drop_caches: 3 [ 55.201707][ T5054] syz-executor638 (5054): drop_caches: 3 [pid 5053] memfd_create("syzkaller", 0) = 5 [pid 5053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5058] <... sendfile resumed> => [640], 571) = 518 [pid 5058] memfd_create("syzkaller", 0 [pid 5057] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... memfd_create resumed>) = 5 [pid 5058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 55.256778][ T5058] syz-executor638 (5058): drop_caches: 3 [pid 5053] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... write resumed>) = 2097152 [pid 5054] <... sendfile resumed> => [640], 571) = 518 [pid 5057] munmap(0x7fa7fde00000, 138412032) = 0 [ 55.352947][ T5054] syz-executor638 (5054): drop_caches: 3 [ 55.358215][ T5055] syz-executor638 (5055): drop_caches: 3 [pid 5054] memfd_create("syzkaller", 0 [pid 5057] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] <... sendfile resumed> => [640], 571) = 518 [pid 5054] <... memfd_create resumed>) = 5 [pid 5058] <... write resumed>) = 2097152 [pid 5057] <... openat resumed>) = 6 [pid 5054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] <... write resumed>) = 2097152 [pid 5057] ioctl(6, LOOP_SET_FD, 5 [pid 5053] munmap(0x7fa7fde00000, 138412032 [pid 5058] munmap(0x7fa7fde00000, 138412032 [pid 5055] memfd_create("syzkaller", 0) = 5 [pid 5058] <... munmap resumed>) = 0 [pid 5057] <... ioctl resumed>) = 0 [pid 5054] <... mmap resumed>) = 0x7fa7fde00000 [pid 5053] <... munmap resumed>) = 0 [pid 5057] close(5) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] close(6 [pid 5055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5053] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] <... openat resumed>) = 6 [pid 5057] <... close resumed>) = 0 [pid 5053] <... openat resumed>) = 6 [ 55.402559][ T5055] syz-executor638 (5055): drop_caches: 3 [ 55.421246][ T5057] loop3: detected capacity change from 0 to 4096 [ 55.440800][ T5058] loop4: detected capacity change from 0 to 4096 [pid 5058] ioctl(6, LOOP_SET_FD, 5 [pid 5057] mkdir("./file0", 0777 [pid 5053] ioctl(6, LOOP_SET_FD, 5 [pid 5055] <... mmap resumed>) = 0x7fa7fde00000 [pid 5057] <... mkdir resumed>) = 0 [pid 5057] mount("/dev/loop3", "./file0", "ntfs", MS_NODEV|MS_NODIRATIME|MS_I_VERSION, "dmask=00000000000000000000004,show_sys_files=no,show_sys_files=yes,show_sys_files=yes,mft_zone_multi"... [pid 5054] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... ioctl resumed>) = 0 [pid 5053] <... ioctl resumed>) = 0 [pid 5058] close(5 [pid 5053] close(5 [pid 5058] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [pid 5058] close(6 [pid 5053] close(6 [pid 5058] <... close resumed>) = 0 [pid 5053] <... close resumed>) = 0 [ 55.450737][ T5053] loop1: detected capacity change from 0 to 4096 [ 55.466741][ T5057] 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. [pid 5058] mkdir("./file0", 0777 [pid 5053] mkdir("./file0", 0777 [pid 5058] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5053] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5058] mount("/dev/loop4", "./file0", "ntfs", MS_NODEV|MS_NODIRATIME|MS_I_VERSION, "dmask=00000000000000000000004,show_sys_files=no,show_sys_files=yes,show_sys_files=yes,mft_zone_multi"... [pid 5053] mount("/dev/loop1", "./file0", "ntfs", MS_NODEV|MS_NODIRATIME|MS_I_VERSION, "dmask=00000000000000000000004,show_sys_files=no,show_sys_files=yes,show_sys_files=yes,mft_zone_multi"... [ 55.493353][ T5053] 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. [ 55.514769][ T5058] 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. [pid 5055] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... mount resumed>) = 0 [pid 5054] <... write resumed>) = 2097152 [pid 5058] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5058] chdir("./file0") = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5058] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 6 [pid 5055] <... write resumed>) = 2097152 [pid 5054] munmap(0x7fa7fde00000, 138412032 [pid 5058] exit_group(0 [pid 5053] <... mount resumed>) = 0 [pid 5058] <... exit_group resumed>) = ? [pid 5053] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5055] munmap(0x7fa7fde00000, 138412032 [pid 5054] <... munmap resumed>) = 0 [pid 5053] <... openat resumed>) = 5 [ 55.558149][ T5058] ntfs: volume version 3.1. [ 55.573085][ T5053] ntfs: volume version 3.1. [pid 5054] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5053] chdir("./file0" [pid 5055] <... munmap resumed>) = 0 [pid 5054] ioctl(6, LOOP_SET_FD, 5 [pid 5053] <... chdir resumed>) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] +++ exited with 0 +++ [pid 5055] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5053] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5054] <... ioctl resumed>) = 0 [pid 5055] <... openat resumed>) = 6 [pid 5053] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5058, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=48 /* 0.48 s */} --- [pid 5055] ioctl(6, LOOP_SET_FD, 5 [pid 5054] close(5) = 0 [pid 5054] close(6) = 0 [pid 5054] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5054] mount("/dev/loop0", "./file0", "ntfs", MS_NODEV|MS_NODIRATIME|MS_I_VERSION, "dmask=00000000000000000000004,show_sys_files=no,show_sys_files=yes,show_sys_files=yes,mft_zone_multi"... [pid 5055] <... ioctl resumed>) = 0 [pid 5053] <... openat resumed>) = 6 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] close(5) = 0 [pid 5053] exit_group(0 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] close(6 [pid 5053] <... exit_group resumed>) = ? [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... close resumed>) = 0 [pid 5055] mkdir("./file0", 0777 [pid 5053] +++ exited with 0 +++ [pid 5049] --- 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=39 /* 0.39 s */} --- [pid 5055] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 5061 attached [pid 5055] mount("/dev/loop2", "./file0", "ntfs", MS_NODEV|MS_NODIRATIME|MS_I_VERSION, "dmask=00000000000000000000004,show_sys_files=no,show_sys_files=yes,show_sys_files=yes,mft_zone_multi"... [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5061 [pid 5061] set_robust_list(0x555556ffb660, 24 [ 55.623307][ T5054] loop0: detected capacity change from 0 to 4096 [ 55.643188][ T5055] loop2: detected capacity change from 0 to 4096 [ 55.646694][ T5054] 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. [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5061] <... set_robust_list resumed>) = 0 [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] setpgid(0, 0) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1000", 4) = 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 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5061] <... openat resumed>) = 4 [pid 5061] sendfile(4, 3, [122] [ 55.696739][ T5055] 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. [ 55.722961][ T5057] ntfs: volume version 3.1. [ 55.725635][ T5054] ntfs: volume version 3.1. [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... mount resumed>) = 0 [pid 5054] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5062 attached [pid 5057] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5055] <... mount resumed>) = 0 [pid 5054] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5062] set_robust_list(0x555556ffb660, 24 [pid 5057] <... openat resumed>) = 5 [pid 5055] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5054] <... openat resumed>) = 5 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5062 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5057] chdir("./file0" [pid 5055] <... openat resumed>) = 5 [pid 5054] chdir("./file0" [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... chdir resumed>) = 0 [pid 5055] chdir("./file0" [pid 5054] <... chdir resumed>) = 0 [pid 5062] <... prctl resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] <... chdir resumed>) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5062] setpgid(0, 0 [pid 5057] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5055] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5062] <... setpgid resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5054] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5054] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5062] <... openat resumed>) = 3 [pid 5054] <... openat resumed>) = 6 [pid 5062] write(3, "1000", 4 [pid 5055] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5062] <... write resumed>) = 4 [pid 5062] close(3 [pid 5055] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5062] <... close resumed>) = 0 [pid 5062] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5057] <... openat resumed>) = 6 [pid 5055] <... openat resumed>) = 6 [pid 5057] exit_group(0 [pid 5055] exit_group(0) = ? [pid 5062] <... openat resumed>) = 3 [ 55.751842][ T5055] ntfs: volume version 3.1. [pid 5057] <... exit_group resumed>) = ? [pid 5062] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5057] +++ exited with 0 +++ [pid 5062] <... openat resumed>) = 4 [pid 5054] exit_group(0 [pid 5055] +++ exited with 0 +++ [pid 5062] sendfile(4, 3, [122] [pid 5054] <... exit_group resumed>) = ? [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5057, si_uid=0, si_status=0, si_utime=0, si_stime=39 /* 0.39 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5055, si_uid=0, si_status=0, si_utime=0, si_stime=49 /* 0.49 s */} --- [pid 5054] +++ exited with 0 +++ [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5054, si_uid=0, si_status=0, si_utime=0, si_stime=46 /* 0.46 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5063 attached [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5063 [pid 5063] set_robust_list(0x555556ffb660, 24) = 0 [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5064 ./strace-static-x86_64: Process 5065 attached [pid 5063] <... prctl resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5065 [pid 5065] set_robust_list(0x555556ffb660, 24./strace-static-x86_64: Process 5064 attached ) = 0 [pid 5063] setpgid(0, 0 [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] <... setpgid resumed>) = 0 [pid 5065] <... prctl resumed>) = 0 [pid 5064] set_robust_list(0x555556ffb660, 24 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] setpgid(0, 0 [pid 5064] <... set_robust_list resumed>) = 0 [pid 5063] <... openat resumed>) = 3 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] write(3, "1000", 4 [pid 5065] <... setpgid resumed>) = 0 [pid 5064] <... prctl resumed>) = 0 [pid 5063] <... write resumed>) = 4 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5064] setpgid(0, 0 [pid 5063] close(3 [pid 5064] <... setpgid resumed>) = 0 [pid 5063] <... close resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5065] write(3, "1000", 4 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5064] <... openat resumed>) = 3 [pid 5065] <... write resumed>) = 4 [pid 5063] <... openat resumed>) = 3 [pid 5064] write(3, "1000", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5065] close(3 [pid 5064] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5063] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5064] <... openat resumed>) = 4 [pid 5064] sendfile(4, 3, [122] [pid 5065] <... close resumed>) = 0 [pid 5063] <... openat resumed>) = 4 [pid 5065] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5063] sendfile(4, 3, [122] [pid 5065] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 55.846821][ T5061] syz-executor638 (5061): drop_caches: 3 [ 55.869452][ T5062] syz-executor638 (5062): drop_caches: 3 [pid 5065] sendfile(4, 3, [122] [pid 5061] <... sendfile resumed> => [693], 571) = 571 [pid 5061] memfd_create("syzkaller", 0) = 5 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 55.909184][ T5061] syz-executor638 (5061): drop_caches: 3 [pid 5061] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5062] memfd_create("syzkaller", 0) = 5 [pid 5062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5061] <... write resumed>) = 2097152 [ 55.994129][ T5063] syz-executor638 (5063): drop_caches: 3 [ 55.996655][ T5064] syz-executor638 (5064): drop_caches: 3 [ 56.003559][ T5062] syz-executor638 (5062): drop_caches: 3 [pid 5061] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5061] close(5) = 0 [pid 5061] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5061] exit_group(0) = ? [pid 5061] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5066 attached [pid 5066] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5066 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] write(3, "1000", 4) = 4 [pid 5066] close(3) = 0 [pid 5066] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5066] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5066] sendfile(4, 3, [122] [ 56.037326][ T5065] syz-executor638 (5065): drop_caches: 3 [pid 5062] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5062] munmap(0x7fa7fde00000, 138412032 [pid 5063] <... sendfile resumed> => [693], 571) = 571 [pid 5063] memfd_create("syzkaller", 0 [pid 5062] <... munmap resumed>) = 0 [pid 5063] <... memfd_create resumed>) = 5 [pid 5062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... sendfile resumed> => [693], 571) = 571 [pid 5064] <... sendfile resumed> => [693], 571) = 571 [pid 5063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5062] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5064] memfd_create("syzkaller", 0 [pid 5062] close(5 [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) = 0x7fa7fde00000 [pid 5065] <... memfd_create resumed>) = 5 [pid 5063] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 56.153704][ T5063] syz-executor638 (5063): drop_caches: 3 [ 56.178818][ T5064] syz-executor638 (5064): drop_caches: 3 [ 56.188885][ T5065] syz-executor638 (5065): drop_caches: 3 [ 56.190454][ T5066] syz-executor638 (5066): drop_caches: 3 [pid 5062] <... close resumed>) = 0 [pid 5062] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5064] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 resumed>) = 2097152 [pid 5062] <... openat resumed>) = 5 [pid 5062] exit_group(0 [pid 5063] munmap(0x7fa7fde00000, 138412032 [pid 5062] <... exit_group resumed>) = ? [pid 5063] <... munmap resumed>) = 0 [pid 5062] +++ exited with 0 +++ [pid 5063] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] --- 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=15 /* 0.15 s */} --- [pid 5065] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5063] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5067 ./strace-static-x86_64: Process 5067 attached [pid 5063] close(5 [pid 5067] set_robust_list(0x555556ffb660, 24) = 0 [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] <... write resumed>) = 2097152 [pid 5067] setpgid(0, 0) = 0 [pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1000", 4 [pid 5066] <... sendfile resumed> => [693], 571) = 571 [pid 5065] <... write resumed>) = 2097152 [pid 5067] <... write resumed>) = 4 [pid 5064] munmap(0x7fa7fde00000, 138412032 [pid 5063] <... close resumed>) = 0 [pid 5067] close(3 [pid 5066] memfd_create("syzkaller", 0 [pid 5065] munmap(0x7fa7fde00000, 138412032 [pid 5063] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5067] <... close resumed>) = 0 [pid 5066] <... memfd_create resumed>) = 5 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5065] <... munmap resumed>) = 0 [pid 5066] <... mmap resumed>) = 0x7fa7fde00000 [pid 5064] <... munmap resumed>) = 0 [pid 5063] <... openat resumed>) = 5 [pid 5067] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5063] exit_group(0 [pid 5067] sendfile(4, 3, [122] [pid 5063] <... exit_group resumed>) = ? [pid 5065] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] close(5) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5063] +++ exited with 0 +++ [pid 5065] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] --- 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 5064] close(5) = 0 [pid 5064] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5065] <... openat resumed>) = 5 [pid 5064] <... openat resumed>) = 5 [pid 5065] exit_group(0) = ? [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5068 [pid 5064] exit_group(0) = ? ./strace-static-x86_64: Process 5068 attached [pid 5065] +++ exited with 0 +++ [pid 5064] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5065, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] set_robust_list(0x555556ffb660, 24 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... set_robust_list resumed>) = 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5069 attached ./strace-static-x86_64: Process 5070 attached ) = 0 [pid 5066] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5068] setpgid(0, 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5069 [pid 5068] <... setpgid resumed>) = 0 [ 56.319997][ T5066] syz-executor638 (5066): drop_caches: 3 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5070 [pid 5070] set_robust_list(0x555556ffb660, 24 [pid 5069] set_robust_list(0x555556ffb660, 24 [pid 5068] <... openat resumed>) = 3 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5068] write(3, "1000", 4 [pid 5066] <... write resumed>) = 2097152 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... write resumed>) = 4 [pid 5068] close(3 [pid 5070] <... prctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5070] setpgid(0, 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5070] <... setpgid resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... openat resumed>) = 4 [pid 5068] sendfile(4, 3, [122] [pid 5069] <... prctl resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] setpgid(0, 0) = 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1000", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5069] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5069] sendfile(4, 3, [122] [pid 5066] munmap(0x7fa7fde00000, 138412032 [pid 5070] write(3, "1000", 4) = 4 [pid 5066] <... munmap resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5066] close(5 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5070] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5070] sendfile(4, 3, [122] [pid 5066] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5066] exit_group(0) = ? [pid 5066] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x555556ffb660, 24) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1000", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5071] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 56.525393][ T5067] syz-executor638 (5067): drop_caches: 3 [ 56.531496][ T5068] syz-executor638 (5068): drop_caches: 3 [ 56.541938][ T5070] syz-executor638 (5070): drop_caches: 3 [ 56.559272][ T5069] syz-executor638 (5069): drop_caches: 3 [pid 5071] sendfile(4, 3, [122] [pid 5067] <... sendfile resumed> => [693], 571) = 571 [pid 5068] <... sendfile resumed> => [693], 571) = 571 [pid 5067] memfd_create("syzkaller", 0) = 5 [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5068] memfd_create("syzkaller", 0) = 5 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5069] <... sendfile resumed> => [693], 571) = 571 [pid 5070] <... sendfile resumed> => [693], 571) = 571 [pid 5069] memfd_create("syzkaller", 0) = 5 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 56.650729][ T5071] syz-executor638 (5071): drop_caches: 3 [ 56.651811][ T5067] syz-executor638 (5067): drop_caches: 3 [ 56.663811][ T5068] syz-executor638 (5068): drop_caches: 3 [ 56.671685][ T5069] syz-executor638 (5069): drop_caches: 3 [ 56.688991][ T5070] syz-executor638 (5070): drop_caches: 3 [pid 5070] memfd_create("syzkaller", 0) = 5 [pid 5070] 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\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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>) = 0x7fa7fde00000 [pid 5069] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5071] <... sendfile resumed> => [693], 571) = 571 [pid 5071] memfd_create("syzkaller", 0) = 5 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 56.751187][ T5071] syz-executor638 (5071): drop_caches: 3 [pid 5070] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5068] <... write resumed>) = 2097152 [pid 5067] <... write resumed>) = 2097152 [pid 5067] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5068] munmap(0x7fa7fde00000, 138412032 [pid 5067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] close(5 [pid 5068] <... munmap resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5068] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] close(5 [pid 5069] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5069] close(5 [pid 5067] <... openat resumed>) = 5 [pid 5071] <... write resumed>) = 2097152 [pid 5068] <... close resumed>) = 0 [pid 5067] exit_group(0) = ? [pid 5067] +++ exited with 0 +++ [pid 5049] --- 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=18 /* 0.18 s */} --- [pid 5068] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5071] munmap(0x7fa7fde00000, 138412032 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... openat resumed>) = 5 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] exit_group(0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... exit_group resumed>) = ? [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] set_robust_list(0x555556ffb660, 24 [pid 5069] <... close resumed>) = 0 [pid 5068] +++ exited with 0 +++ [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] <... munmap resumed>) = 0 [pid 5070] <... write resumed>) = 2097152 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] munmap(0x7fa7fde00000, 138412032 [pid 5071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... restart_syscall resumed>) = 0 [pid 5072] <... prctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5072] setpgid(0, 0 [pid 5071] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5072] <... setpgid resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5072] <... openat resumed>) = 3 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached [pid 5071] close(5 [pid 5069] <... openat resumed>) = 5 [pid 5073] set_robust_list(0x555556ffb660, 24 [pid 5072] write(3, "1000", 4 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5073 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5072] <... write resumed>) = 4 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] close(3 [pid 5073] <... prctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5073] setpgid(0, 0 [pid 5072] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5073] <... setpgid resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] exit_group(0 [pid 5073] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5073] write(3, "1000", 4 [pid 5072] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5073] <... write resumed>) = 4 [pid 5072] <... openat resumed>) = 4 [pid 5069] <... exit_group resumed>) = ? [pid 5073] close(3) = 0 [pid 5072] sendfile(4, 3, [122] [pid 5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5070] <... munmap resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] +++ exited with 0 +++ [pid 5073] sendfile(4, 3, [122] [pid 5071] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5071] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5070] close(5 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5071] <... openat resumed>) = 5 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5074 attached [pid 5071] exit_group(0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5074 [pid 5071] <... exit_group resumed>) = ? [pid 5074] set_robust_list(0x555556ffb660, 24) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] +++ exited with 0 +++ [pid 5070] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3 [pid 5070] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5074] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 5 [pid 5074] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5070] exit_group(0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... exit_group resumed>) = ? [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5075 attached [pid 5075] set_robust_list(0x555556ffb660, 24) = 0 [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... openat resumed>) = 3 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5075 [pid 5075] <... prctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5075] setpgid(0, 0) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] sendfile(4, 3, [122] [pid 5070] +++ exited with 0 +++ [pid 5075] <... openat resumed>) = 3 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5075] write(3, "1000", 4) = 4 [pid 5075] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5075] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5075] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 4 [pid 5075] sendfile(4, 3, [122]./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x555556ffb660, 24) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5076 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 57.008844][ T5072] syz-executor638 (5072): drop_caches: 3 [ 57.016208][ T5073] syz-executor638 (5073): drop_caches: 3 [pid 5076] sendfile(4, 3, [122] [pid 5073] <... sendfile resumed> => [693], 571) = 571 [pid 5073] memfd_create("syzkaller", 0) = 5 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 57.090193][ T5074] syz-executor638 (5074): drop_caches: 3 [ 57.091403][ T5075] syz-executor638 (5075): drop_caches: 3 [ 57.098506][ T5073] syz-executor638 (5073): drop_caches: 3 [pid 5072] <... sendfile resumed> => [693], 571) = 571 [pid 5072] memfd_create("syzkaller", 0 [pid 5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... memfd_create resumed>) = 5 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 57.147659][ T5072] syz-executor638 (5072): drop_caches: 3 [ 57.168717][ T5076] syz-executor638 (5076): drop_caches: 3 [pid 5074] <... sendfile resumed> => [693], 571) = 571 [pid 5074] memfd_create("syzkaller", 0) = 5 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5072] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5075] <... sendfile resumed> => [693], 571) = 571 [pid 5075] memfd_create("syzkaller", 0) = 5 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5074] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5073] <... write resumed>) = 2097152 [ 57.202980][ T5074] syz-executor638 (5074): drop_caches: 3 [ 57.239529][ T5075] syz-executor638 (5075): drop_caches: 3 [pid 5076] <... sendfile resumed> => [693], 571) = 571 [pid 5076] memfd_create("syzkaller", 0) = 5 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5073] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... write resumed>) = 2097152 [pid 5073] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5072] munmap(0x7fa7fde00000, 138412032 [pid 5073] close(5 [pid 5072] <... munmap resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5072] close(5 [ 57.275661][ T5076] syz-executor638 (5076): drop_caches: 3 [pid 5075] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... close resumed>) = 0 [pid 5076] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 resumed>) = 2097152 [pid 5074] munmap(0x7fa7fde00000, 138412032 [pid 5073] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5072] <... close resumed>) = 0 [pid 5076] <... write resumed>) = 2097152 [pid 5075] <... write resumed>) = 2097152 [pid 5074] <... munmap resumed>) = 0 [pid 5073] exit_group(0 [pid 5072] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5076] munmap(0x7fa7fde00000, 138412032 [pid 5073] <... exit_group resumed>) = ? [pid 5072] <... openat resumed>) = 5 [pid 5075] munmap(0x7fa7fde00000, 138412032 [pid 5074] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] exit_group(0 [pid 5075] <... munmap resumed>) = 0 [pid 5074] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5073] +++ exited with 0 +++ [pid 5072] <... exit_group resumed>) = ? [pid 5076] <... munmap resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] close(5 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5076] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5075] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5072] +++ exited with 0 +++ [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5075] close(5 [pid 5049] --- 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 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5077 [pid 5076] close(5 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5077 attached ) = -1 EBUSY (Device or resource busy) [pid 5077] set_robust_list(0x555556ffb660, 24 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5078 attached [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... close resumed>) = 0 [pid 5078] set_robust_list(0x555556ffb660, 24 [pid 5077] <... prctl resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5078 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5077] setpgid(0, 0 [pid 5075] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... setpgid resumed>) = 0 [pid 5075] <... openat resumed>) = 5 [pid 5078] <... prctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] setpgid(0, 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5075] exit_group(0 [pid 5074] <... close resumed>) = 0 [pid 5078] <... setpgid resumed>) = 0 [pid 5077] write(3, "1000", 4 [pid 5074] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... write resumed>) = 4 [pid 5076] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5075] <... exit_group resumed>) = ? [pid 5074] <... openat resumed>) = 5 [pid 5078] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] <... openat resumed>) = 5 [pid 5074] exit_group(0) = ? [pid 5077] <... close resumed>) = 0 [pid 5078] write(3, "1000", 4 [pid 5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5076] exit_group(0 [pid 5075] +++ exited with 0 +++ [pid 5078] <... write resumed>) = 4 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... exit_group resumed>) = ? [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5078] close(3 [pid 5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5074] +++ exited with 0 +++ [pid 5078] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5077] sendfile(4, 3, [122] [pid 5078] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5076] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] <... openat resumed>) = 4 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- ./strace-static-x86_64: Process 5079 attached [pid 5078] sendfile(4, 3, [122] [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached [pid 5079] set_robust_list(0x555556ffb660, 24 [pid 5080] set_robust_list(0x555556ffb660, 24 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... prctl resumed>) = 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] setpgid(0, 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5080 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5079 [pid 5079] <... setpgid resumed>) = 0 [pid 5080] <... prctl resumed>) = 0 [pid 5080] setpgid(0, 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... setpgid resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5081 attached [pid 5080] <... write resumed>) = 4 [pid 5079] <... openat resumed>) = 3 [pid 5081] set_robust_list(0x555556ffb660, 24 [pid 5080] close(3 [pid 5079] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5081 [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5079] sendfile(4, 3, [122] [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5081] <... prctl resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5081] setpgid(0, 0) = 0 [pid 5080] sendfile(4, 3, [122] [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 57.458698][ T5077] syz-executor638 (5077): drop_caches: 3 [pid 5081] sendfile(4, 3, [122] [pid 5077] <... sendfile resumed> => [693], 571) = 571 [pid 5077] memfd_create("syzkaller", 0) = 5 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 57.568394][ T5078] syz-executor638 (5078): drop_caches: 3 [ 57.576898][ T5077] syz-executor638 (5077): drop_caches: 3 [ 57.578568][ T5079] syz-executor638 (5079): drop_caches: 3 [ 57.588748][ T5080] syz-executor638 (5080): drop_caches: 3 [ 57.611816][ T5081] syz-executor638 (5081): drop_caches: 3 [pid 5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5080] <... sendfile resumed> => [693], 571) = 571 [pid 5080] memfd_create("syzkaller", 0 [pid 5078] <... sendfile resumed> => [693], 571) = 571 [pid 5078] memfd_create("syzkaller", 0) = 5 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5080] <... memfd_create resumed>) = 5 [pid 5081] <... sendfile resumed> => [693], 571) = 571 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... sendfile resumed> => [693], 571) = 571 [pid 5077] <... write resumed>) = 2097152 [pid 5081] memfd_create("syzkaller", 0 [pid 5080] <... mmap resumed>) = 0x7fa7fde00000 [pid 5079] memfd_create("syzkaller", 0 [pid 5077] munmap(0x7fa7fde00000, 138412032 [pid 5081] <... memfd_create resumed>) = 5 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5077] <... munmap resumed>) = 0 [pid 5079] <... memfd_create resumed>) = 5 [pid 5078] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5077] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 57.703296][ T5078] syz-executor638 (5078): drop_caches: 3 [ 57.714727][ T5080] syz-executor638 (5080): drop_caches: 3 [ 57.724391][ T5079] syz-executor638 (5079): drop_caches: 3 [ 57.735985][ T5081] syz-executor638 (5081): drop_caches: 3 [pid 5077] close(5 [pid 5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5078] <... write resumed>) = 2097152 [pid 5077] <... close resumed>) = 0 [pid 5078] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5077] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5078] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] close(5 [pid 5077] exit_group(0) = ? [pid 5077] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5079] <... write resumed>) = 2097152 [pid 5079] munmap(0x7fa7fde00000, 138412032 [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... write resumed>) = 2097152 [pid 5079] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5081] munmap(0x7fa7fde00000, 138412032 [pid 5079] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5082 [pid 5082] set_robust_list(0x555556ffb660, 24 [pid 5079] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] <... munmap resumed>) = 0 [pid 5080] <... write resumed>) = 2097152 [pid 5079] close(5 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] munmap(0x7fa7fde00000, 138412032 [pid 5082] setpgid(0, 0 [pid 5081] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... setpgid resumed>) = 0 [pid 5081] close(5 [pid 5080] <... munmap resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... close resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] write(3, "1000", 4 [pid 5080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... write resumed>) = 4 [pid 5080] close(5 [pid 5082] close(3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5078] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5080] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5078] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5079] <... openat resumed>) = 5 [pid 5082] <... openat resumed>) = 3 [pid 5079] exit_group(0) = ? [pid 5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5082] sendfile(4, 3, [122] [pid 5081] <... openat resumed>) = 5 [pid 5080] <... openat resumed>) = 5 [pid 5079] +++ exited with 0 +++ [pid 5078] <... openat resumed>) = 5 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5081] exit_group(0 [pid 5080] exit_group(0 [pid 5078] exit_group(0 [pid 5081] <... exit_group resumed>) = ? [pid 5080] <... exit_group resumed>) = ? [pid 5078] <... exit_group resumed>) = ? [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ [pid 5078] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] --- 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=11 /* 0.11 s */} --- [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 5083 attached [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5083] set_robust_list(0x555556ffb660, 24 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5083 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5084] set_robust_list(0x555556ffb660, 24 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... prctl resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached [pid 5084] <... set_robust_list resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5083] setpgid(0, 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... setpgid resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5085 [pid 5083] <... openat resumed>) = 3 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5084 ./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x555556ffb660, 24 [pid 5083] write(3, "1000", 4 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] set_robust_list(0x555556ffb660, 24 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... write resumed>) = 4 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5086 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] close(3 [pid 5085] <... prctl resumed>) = 0 [pid 5085] setpgid(0, 0 [pid 5083] <... close resumed>) = 0 [pid 5085] <... setpgid resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5086] <... prctl resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5086] setpgid(0, 0 [pid 5085] write(3, "1000", 4 [pid 5083] <... openat resumed>) = 3 [pid 5086] <... setpgid resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] <... write resumed>) = 4 [pid 5084] <... prctl resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5086] <... openat resumed>) = 3 [pid 5085] close(3 [pid 5084] setpgid(0, 0 [pid 5083] <... openat resumed>) = 4 [pid 5086] write(3, "1000", 4 [pid 5085] <... close resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5083] sendfile(4, 3, [122] [pid 5086] <... write resumed>) = 4 [pid 5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5086] close(3 [pid 5085] <... openat resumed>) = 3 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5086] <... close resumed>) = 0 [pid 5085] <... openat resumed>) = 4 [pid 5084] <... openat resumed>) = 3 [pid 5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] sendfile(4, 3, [122] [pid 5084] write(3, "1000", 4 [pid 5086] <... openat resumed>) = 3 [pid 5084] <... write resumed>) = 4 [pid 5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5084] close(3 [pid 5086] <... openat resumed>) = 4 [pid 5084] <... close resumed>) = 0 [pid 5086] sendfile(4, 3, [122] [pid 5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 57.967964][ T5082] syz-executor638 (5082): drop_caches: 3 [pid 5084] sendfile(4, 3, [122] [pid 5082] <... sendfile resumed> => [693], 571) = 571 [ 58.074050][ T5082] syz-executor638 (5082): drop_caches: 3 [ 58.097620][ T5083] syz-executor638 (5083): drop_caches: 3 [ 58.111110][ T5085] syz-executor638 (5085): drop_caches: 3 [pid 5082] memfd_create("syzkaller", 0) = 5 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 58.123365][ T5086] syz-executor638 (5086): drop_caches: 3 [ 58.131349][ T5084] syz-executor638 (5084): drop_caches: 3 [pid 5082] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5083] memfd_create("syzkaller", 0) = 5 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5085] <... sendfile resumed> => [693], 571) = 571 [ 58.212044][ T5083] syz-executor638 (5083): drop_caches: 3 [ 58.236801][ T5085] syz-executor638 (5085): drop_caches: 3 [ 58.254141][ T5084] syz-executor638 (5084): drop_caches: 3 [pid 5085] memfd_create("syzkaller", 0 [pid 5082] <... write resumed>) = 2097152 [pid 5084] <... sendfile resumed> => [693], 571) = 571 [pid 5086] <... sendfile resumed> => [693], 571) = 571 [pid 5085] <... memfd_create resumed>) = 5 [pid 5084] memfd_create("syzkaller", 0 [pid 5083] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5082] munmap(0x7fa7fde00000, 138412032 [pid 5086] memfd_create("syzkaller", 0 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] <... memfd_create resumed>) = 5 [pid 5085] <... mmap resumed>) = 0x7fa7fde00000 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5086] <... memfd_create resumed>) = 5 [pid 5082] <... munmap resumed>) = 0 [ 58.261036][ T5086] syz-executor638 (5086): drop_caches: 3 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] <... mmap resumed>) = 0x7fa7fde00000 [pid 5086] <... mmap resumed>) = 0x7fa7fde00000 [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5082] close(5 [pid 5083] <... write resumed>) = 2097152 [pid 5083] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 resumed>) = 0 [pid 5082] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5086] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] close(5 [pid 5084] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... openat resumed>) = 5 [pid 5082] exit_group(0) = ? [pid 5082] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5087] set_robust_list(0x555556ffb660, 24) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] setpgid(0, 0) = 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5087] write(3, "1000", 4) = 4 [pid 5087] close(3) = 0 [pid 5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5087] sendfile(4, 3, [122] [pid 5083] <... close resumed>) = 0 [pid 5084] <... write resumed>) = 2097152 [pid 5083] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5086] <... write resumed>) = 2097152 [pid 5086] munmap(0x7fa7fde00000, 138412032 [pid 5084] munmap(0x7fa7fde00000, 138412032 [pid 5083] <... openat resumed>) = 5 [pid 5086] <... munmap resumed>) = 0 [pid 5083] exit_group(0) = ? [pid 5086] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5085] <... write resumed>) = 2097152 [pid 5084] <... munmap resumed>) = 0 [pid 5083] +++ exited with 0 +++ [pid 5086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] close(5 [pid 5085] munmap(0x7fa7fde00000, 138412032 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5084] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5085] <... munmap resumed>) = 0 [pid 5084] close(5 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5088 ./strace-static-x86_64: Process 5088 attached [pid 5088] set_robust_list(0x555556ffb660, 24 [pid 5085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5084] <... close resumed>) = 0 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] close(5 [pid 5088] <... prctl resumed>) = 0 [pid 5088] setpgid(0, 0 [pid 5084] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5086] <... close resumed>) = 0 [pid 5084] <... openat resumed>) = 5 [pid 5088] <... setpgid resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] exit_group(0) = ? [pid 5088] <... openat resumed>) = 3 [pid 5086] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5084] +++ exited with 0 +++ [pid 5086] <... openat resumed>) = 5 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5088] write(3, "1000", 4) = 4 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] exit_group(0 [pid 5085] <... close resumed>) = 0 ./strace-static-x86_64: Process 5089 attached [pid 5088] close(3 [pid 5086] <... exit_group resumed>) = ? [pid 5088] <... close resumed>) = 0 [pid 5085] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5085] <... openat resumed>) = 5 [pid 5089] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5089 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] <... openat resumed>) = 3 [pid 5085] exit_group(0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5085] <... exit_group resumed>) = ? [pid 5089] <... prctl resumed>) = 0 [pid 5088] <... openat resumed>) = 4 [pid 5086] +++ exited with 0 +++ [pid 5085] +++ exited with 0 +++ [pid 5089] setpgid(0, 0 [pid 5088] sendfile(4, 3, [122] [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5089] <... setpgid resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x555556ffb660, 24 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5090 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5091 attached ) = 0 [pid 5089] write(3, "1000", 4 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5091 [pid 5091] set_robust_list(0x555556ffb660, 24 [pid 5090] setpgid(0, 0) = 0 [pid 5089] <... write resumed>) = 4 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5089] close(3 [pid 5090] write(3, "1000", 4 [pid 5089] <... close resumed>) = 0 [pid 5090] <... write resumed>) = 4 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] close(3) = 0 [pid 5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5091] <... prctl resumed>) = 0 [pid 5091] setpgid(0, 0) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5090] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 58.463219][ T5087] syz-executor638 (5087): drop_caches: 3 [pid 5090] sendfile(4, 3, [122] [pid 5091] <... openat resumed>) = 3 [pid 5089] sendfile(4, 3, [122] [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) = 4 [pid 5091] sendfile(4, 3, [122] [pid 5087] <... sendfile resumed> => [693], 571) = 571 [pid 5087] memfd_create("syzkaller", 0) = 5 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 58.539223][ T5087] syz-executor638 (5087): drop_caches: 3 [ 58.617467][ T5088] syz-executor638 (5088): drop_caches: 3 [ 58.628741][ T5089] syz-executor638 (5089): drop_caches: 3 [ 58.635928][ T5090] syz-executor638 (5090): drop_caches: 3 [ 58.659208][ T5091] syz-executor638 (5091): drop_caches: 3 [pid 5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5087] munmap(0x7fa7fde00000, 138412032 [pid 5089] <... sendfile resumed> => [693], 571) = 571 [pid 5087] <... munmap resumed>) = 0 [pid 5089] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] <... memfd_create resumed>) = 5 [pid 5087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] close(5 [pid 5089] <... mmap resumed>) = 0x7fa7fde00000 [pid 5088] <... sendfile resumed> => [693], 571) = 571 [pid 5088] memfd_create("syzkaller", 0) = 5 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5087] <... close resumed>) = 0 [pid 5091] <... sendfile resumed> => [693], 571) = 571 [pid 5090] <... sendfile resumed> => [693], 571) = 571 [pid 5091] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5090] memfd_create("syzkaller", 0 [pid 5091] <... memfd_create resumed>) = 5 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5090] <... memfd_create resumed>) = 5 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5087] <... openat resumed>) = 5 [ 58.750772][ T5089] syz-executor638 (5089): drop_caches: 3 [ 58.759627][ T5088] syz-executor638 (5088): drop_caches: 3 [ 58.781611][ T5090] syz-executor638 (5090): drop_caches: 3 [ 58.788871][ T5091] syz-executor638 (5091): drop_caches: 3 [pid 5089] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] exit_group(0) = ? [pid 5087] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5091] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached [pid 5092] set_robust_list(0x555556ffb660, 24 [pid 5090] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... clone resumed>, child_tidptr=0x555556ffb650) = 5092 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5089] <... write resumed>) = 2097152 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] munmap(0x7fa7fde00000, 138412032 [pid 5092] <... prctl resumed>) = 0 [pid 5091] <... write resumed>) = 2097152 [pid 5089] <... munmap resumed>) = 0 [pid 5092] setpgid(0, 0 [pid 5089] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] <... setpgid resumed>) = 0 [pid 5091] munmap(0x7fa7fde00000, 138412032 [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] close(5 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5091] <... munmap resumed>) = 0 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5091] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5091] close(5 [pid 5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5092] sendfile(4, 3, [122] [pid 5088] <... write resumed>) = 2097152 [pid 5088] munmap(0x7fa7fde00000, 138412032 [pid 5090] <... write resumed>) = 2097152 [pid 5089] <... close resumed>) = 0 [pid 5088] <... munmap resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5090] munmap(0x7fa7fde00000, 138412032 [pid 5089] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5088] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5091] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] close(5 [pid 5091] <... openat resumed>) = 5 [pid 5090] <... munmap resumed>) = 0 [pid 5089] <... openat resumed>) = 5 [pid 5088] <... close resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5088] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] <... openat resumed>) = 5 [pid 5090] close(5 [pid 5091] exit_group(0) = ? [pid 5089] exit_group(0 [pid 5088] exit_group(0) = ? [pid 5089] <... exit_group resumed>) = ? [pid 5089] +++ exited with 0 +++ [pid 5091] +++ exited with 0 +++ [pid 5088] +++ exited with 0 +++ [pid 5050] --- 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=14 /* 0.14 s */} --- [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5051] --- 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=21 /* 0.21 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5052] <... restart_syscall resumed>) = 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5093 attached [pid 5090] <... close resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] set_robust_list(0x555556ffb660, 24 [pid 5090] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5094 attached [pid 5093] <... set_robust_list resumed>) = 0 [pid 5090] <... openat resumed>) = 5 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5093 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] set_robust_list(0x555556ffb660, 24./strace-static-x86_64: Process 5095 attached ) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5095 [pid 5093] <... prctl resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5094 [pid 5095] set_robust_list(0x555556ffb660, 24 [pid 5094] <... prctl resumed>) = 0 [pid 5093] setpgid(0, 0 [pid 5090] exit_group(0 [pid 5093] <... setpgid resumed>) = 0 [pid 5090] <... exit_group resumed>) = ? [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] setpgid(0, 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] +++ exited with 0 +++ [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] <... setpgid resumed>) = 0 [pid 5049] --- 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=15 /* 0.15 s */} --- [pid 5095] <... prctl resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... openat resumed>) = 3 [pid 5095] setpgid(0, 0 [pid 5094] <... openat resumed>) = 3 [pid 5095] <... setpgid resumed>) = 0 [pid 5094] write(3, "1000", 4 [pid 5093] write(3, "1000", 4 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] <... write resumed>) = 4 [pid 5093] <... write resumed>) = 4 [pid 5094] close(3 [pid 5093] close(3 [pid 5095] <... openat resumed>) = 3 [pid 5094] <... close resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = 3 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached [pid 5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5096] set_robust_list(0x555556ffb660, 24 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5096 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] write(3, "1000", 4 [pid 5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5093] sendfile(4, 3, [122] [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... write resumed>) = 4 [pid 5094] <... openat resumed>) = 3 [pid 5096] <... prctl resumed>) = 0 [pid 5095] close(3 [pid 5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5096] setpgid(0, 0 [pid 5095] <... close resumed>) = 0 [pid 5094] <... openat resumed>) = 4 [pid 5096] <... setpgid resumed>) = 0 [pid 5094] sendfile(4, 3, [122] [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5096] <... openat resumed>) = 3 [pid 5096] write(3, "1000", 4) = 4 [pid 5096] close(3) = 0 [pid 5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5096] sendfile(4, 3, [122] [pid 5095] <... openat resumed>) = 3 [pid 5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 59.022328][ T5092] syz-executor638 (5092): drop_caches: 3 [pid 5095] sendfile(4, 3, [122] [pid 5092] <... sendfile resumed> => [693], 571) = 571 [pid 5092] memfd_create("syzkaller", 0) = 5 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 59.141160][ T5092] syz-executor638 (5092): drop_caches: 3 [ 59.151129][ T5094] syz-executor638 (5094): drop_caches: 3 [ 59.156509][ T5093] syz-executor638 (5093): drop_caches: 3 [ 59.170676][ T5096] syz-executor638 (5096): drop_caches: 3 [ 59.176520][ T5095] syz-executor638 (5095): drop_caches: 3 [pid 5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5092] munmap(0x7fa7fde00000, 138412032 [pid 5096] <... sendfile resumed> => [693], 571) = 571 [pid 5092] <... munmap resumed>) = 0 [pid 5093] <... sendfile resumed> => [693], 571) = 571 [pid 5096] memfd_create("syzkaller", 0 [pid 5095] <... sendfile resumed> => [693], 571) = 571 [pid 5094] <... sendfile resumed> => [693], 571) = 571 [pid 5093] memfd_create("syzkaller", 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5096] <... memfd_create resumed>) = 5 [pid 5095] memfd_create("syzkaller", 0 [pid 5093] <... memfd_create resumed>) = 5 [pid 5095] <... memfd_create resumed>) = 5 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] memfd_create("syzkaller", 0 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5096] <... mmap resumed>) = 0x7fa7fde00000 [pid 5094] <... memfd_create resumed>) = 5 [pid 5093] <... mmap resumed>) = 0x7fa7fde00000 [pid 5092] close(5 [pid 5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 59.291318][ T5094] syz-executor638 (5094): drop_caches: 3 [ 59.292114][ T5093] syz-executor638 (5093): drop_caches: 3 [ 59.308759][ T5096] syz-executor638 (5096): drop_caches: 3 [ 59.310284][ T5095] syz-executor638 (5095): drop_caches: 3 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5092] <... close resumed>) = 0 [pid 5095] <... write resumed>) = 2097152 [pid 5095] munmap(0x7fa7fde00000, 138412032 [pid 5092] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] <... openat resumed>) = 5 [pid 5095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] close(5 [pid 5092] exit_group(0) = ? [pid 5092] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5095] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] <... openat resumed>) = 5 ./strace-static-x86_64: Process 5097 attached [pid 5095] exit_group(0) = ? [pid 5097] set_robust_list(0x555556ffb660, 24 [pid 5095] +++ exited with 0 +++ [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5097 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5097] <... prctl resumed>) = 0 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5097] setpgid(0, 0./strace-static-x86_64: Process 5098 attached [pid 5096] <... write resumed>) = 2097152 [pid 5094] <... write resumed>) = 2097152 [pid 5093] <... write resumed>) = 2097152 [pid 5097] <... setpgid resumed>) = 0 [pid 5093] munmap(0x7fa7fde00000, 138412032 [pid 5098] set_robust_list(0x555556ffb660, 24 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] munmap(0x7fa7fde00000, 138412032 [pid 5094] munmap(0x7fa7fde00000, 138412032 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5098 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5093] <... munmap resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5097] write(3, "1000", 4 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... munmap resumed>) = 0 [pid 5094] <... munmap resumed>) = 0 [pid 5097] <... write resumed>) = 4 [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] <... prctl resumed>) = 0 [pid 5097] close(3 [pid 5098] setpgid(0, 0 [pid 5097] <... close resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5094] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5098] <... setpgid resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] close(5 [pid 5097] <... openat resumed>) = 3 [pid 5096] close(5 [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] <... openat resumed>) = 3 [pid 5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5094] close(5 [pid 5093] <... close resumed>) = 0 [pid 5098] write(3, "1000", 4 [pid 5097] <... openat resumed>) = 4 [pid 5093] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5098] <... write resumed>) = 4 [pid 5098] close(3 [pid 5097] sendfile(4, 3, [122] [pid 5093] <... openat resumed>) = 5 [pid 5098] <... close resumed>) = 0 [pid 5093] exit_group(0) = ? [pid 5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5093] +++ exited with 0 +++ [pid 5098] <... openat resumed>) = 3 [pid 5096] <... close resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5096] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5094] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5096] <... openat resumed>) = 5 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5096] exit_group(0 [pid 5094] <... openat resumed>) = 5 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] <... openat resumed>) = 4 [pid 5096] <... exit_group resumed>) = ? [pid 5094] exit_group(0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5098] sendfile(4, 3, [122] [pid 5094] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x555556ffb660, 24 [pid 5094] +++ exited with 0 +++ [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5099] <... prctl resumed>) = 0 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5099] setpgid(0, 0 [pid 5096] +++ exited with 0 +++ [pid 5050] <... restart_syscall resumed>) = 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] <... openat resumed>) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5100 ./strace-static-x86_64: Process 5101 attached [pid 5100] set_robust_list(0x555556ffb660, 24 [pid 5099] write(3, "1000", 4 [pid 5101] set_robust_list(0x555556ffb660, 24 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] <... write resumed>) = 4 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5099] close(3 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... close resumed>) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] <... prctl resumed>) = 0 [pid 5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5101] <... prctl resumed>) = 0 [pid 5100] setpgid(0, 0 [pid 5099] <... openat resumed>) = 3 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5101 [pid 5101] setpgid(0, 0 [pid 5100] <... setpgid resumed>) = 0 [pid 5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5099] sendfile(4, 3, [122] [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] <... setpgid resumed>) = 0 [pid 5100] write(3, "1000", 4 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] <... write resumed>) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5101] <... openat resumed>) = 3 [pid 5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5101] write(3, "1000", 4 [pid 5100] <... openat resumed>) = 4 [pid 5101] <... write resumed>) = 4 [pid 5100] sendfile(4, 3, [122] [pid 5101] close(3) = 0 [pid 5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 59.561241][ T5097] syz-executor638 (5097): drop_caches: 3 [ 59.667624][ T5098] syz-executor638 (5098): drop_caches: 3 [ 59.692105][ T5100] syz-executor638 (5100): drop_caches: 3 [ 59.698906][ T5099] syz-executor638 (5099): drop_caches: 3 [ 59.701126][ T5101] syz-executor638 (5101): drop_caches: 3 [pid 5101] sendfile(4, 3, [122] [pid 5097] <... sendfile resumed> => [693], 571) = 571 [pid 5097] memfd_create("syzkaller", 0) = 5 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 59.713748][ T5097] syz-executor638 (5097): drop_caches: 3 [pid 5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5098] memfd_create("syzkaller", 0) = 5 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5101] <... sendfile resumed> => [693], 571) = 571 [pid 5098] <... mmap resumed>) = 0x7fa7fde00000 [ 59.793877][ T5098] syz-executor638 (5098): drop_caches: 3 [ 59.823742][ T5101] syz-executor638 (5101): drop_caches: 3 [pid 5101] memfd_create("syzkaller", 0 [pid 5097] <... write resumed>) = 2097152 [pid 5101] <... memfd_create resumed>) = 5 [pid 5097] munmap(0x7fa7fde00000, 138412032 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5100] <... sendfile resumed> => [693], 571) = 571 [pid 5100] memfd_create("syzkaller", 0 [pid 5099] <... sendfile resumed> => [693], 571) = 571 [pid 5097] <... munmap resumed>) = 0 [pid 5100] <... memfd_create resumed>) = 5 [pid 5097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] memfd_create("syzkaller", 0 [pid 5097] close(5 [pid 5100] <... mmap resumed>) = 0x7fa7fde00000 [pid 5099] <... memfd_create resumed>) = 5 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 59.856719][ T5100] syz-executor638 (5100): drop_caches: 3 [ 59.863831][ T5099] syz-executor638 (5099): drop_caches: 3 [pid 5097] <... close resumed>) = 0 [pid 5097] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5097] exit_group(0 [pid 5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5098] <... write resumed>) = 2097152 [pid 5097] <... exit_group resumed>) = ? [pid 5097] +++ exited with 0 +++ [pid 5098] munmap(0x7fa7fde00000, 138412032 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5098] <... munmap resumed>) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5098] close(5 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5102 ./strace-static-x86_64: Process 5102 attached [pid 5102] set_robust_list(0x555556ffb660, 24) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5102] sendfile(4, 3, [122] [pid 5098] <... close resumed>) = 0 [pid 5101] <... write resumed>) = 2097152 [pid 5098] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5101] munmap(0x7fa7fde00000, 138412032 [pid 5098] exit_group(0 [pid 5101] <... munmap resumed>) = 0 [pid 5100] <... write resumed>) = 2097152 [pid 5098] <... exit_group resumed>) = ? [pid 5100] munmap(0x7fa7fde00000, 138412032 [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] <... write resumed>) = 2097152 [pid 5098] +++ exited with 0 +++ [pid 5101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5101] close(5 [pid 5099] munmap(0x7fa7fde00000, 138412032 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5100] <... munmap resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5099] <... munmap resumed>) = 0 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] close(5 [pid 5099] close(5./strace-static-x86_64: Process 5103 attached [pid 5101] <... close resumed>) = 0 [pid 5103] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5103 [pid 5101] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5103] <... set_robust_list resumed>) = 0 [pid 5101] <... openat resumed>) = 5 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setpgid(0, 0 [pid 5101] exit_group(0 [pid 5103] <... setpgid resumed>) = 0 [pid 5101] <... exit_group resumed>) = ? [pid 5100] <... close resumed>) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] +++ exited with 0 +++ [pid 5099] <... close resumed>) = 0 [pid 5103] <... openat resumed>) = 3 [pid 5100] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5099] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5103] write(3, "1000", 4 [pid 5100] <... openat resumed>) = 5 [pid 5099] <... openat resumed>) = 5 [pid 5103] <... write resumed>) = 4 [pid 5103] close(3 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5103] <... close resumed>) = 0 [pid 5100] exit_group(0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5100] <... exit_group resumed>) = ? [pid 5099] exit_group(0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5103] <... openat resumed>) = 3 [pid 5100] +++ exited with 0 +++ [pid 5099] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5104 attached [pid 5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5099] +++ exited with 0 +++ [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5104 [pid 5104] set_robust_list(0x555556ffb660, 24 [pid 5103] <... openat resumed>) = 4 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5104] <... set_robust_list resumed>) = 0 [pid 5051] --- 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=16 /* 0.16 s */} --- [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] sendfile(4, 3, [122] [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5104] <... prctl resumed>) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5104] setpgid(0, 0 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5105 ./strace-static-x86_64: Process 5106 attached [ 60.046755][ T5102] syz-executor638 (5102): drop_caches: 3 [pid 5105] set_robust_list(0x555556ffb660, 24 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5106 [pid 5106] set_robust_list(0x555556ffb660, 24 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5104] <... setpgid resumed>) = 0 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] <... prctl resumed>) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5105] setpgid(0, 0 [pid 5104] <... openat resumed>) = 3 [pid 5105] <... setpgid resumed>) = 0 [pid 5104] write(3, "1000", 4 [pid 5106] <... prctl resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] setpgid(0, 0 [pid 5104] <... write resumed>) = 4 [pid 5106] <... setpgid resumed>) = 0 [pid 5105] <... openat resumed>) = 3 [pid 5104] close(3 [pid 5102] <... sendfile resumed> => [693], 571) = 571 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] write(3, "1000", 4 [pid 5106] <... openat resumed>) = 3 [pid 5106] write(3, "1000", 4 [pid 5105] <... write resumed>) = 4 [pid 5104] <... close resumed>) = 0 [pid 5106] <... write resumed>) = 4 [pid 5105] close(3 [pid 5106] close(3 [pid 5105] <... close resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5106] <... openat resumed>) = 3 [pid 5104] <... openat resumed>) = 3 [pid 5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5105] <... openat resumed>) = 3 [pid 5106] <... openat resumed>) = 4 [pid 5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5102] memfd_create("syzkaller", 0 [pid 5106] sendfile(4, 3, [122] [pid 5105] <... openat resumed>) = 4 [pid 5104] <... openat resumed>) = 4 [pid 5102] <... memfd_create resumed>) = 5 [pid 5104] sendfile(4, 3, [122] [pid 5105] sendfile(4, 3, [122] [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 60.121155][ T5102] syz-executor638 (5102): drop_caches: 3 [ 60.146284][ T5103] syz-executor638 (5103): drop_caches: 3 [pid 5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5103] memfd_create("syzkaller", 0) = 5 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 60.232253][ T5103] syz-executor638 (5103): drop_caches: 3 [ 60.244461][ T5104] syz-executor638 (5104): drop_caches: 3 [ 60.250578][ T5105] syz-executor638 (5105): drop_caches: 3 [ 60.263786][ T5106] syz-executor638 (5106): drop_caches: 3 [pid 5102] <... write resumed>) = 2097152 [pid 5102] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5104] <... sendfile resumed> => [693], 571) = 571 [pid 5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5104] memfd_create("syzkaller", 0 [pid 5102] close(5 [pid 5104] <... memfd_create resumed>) = 5 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 60.300404][ T5104] syz-executor638 (5104): drop_caches: 3 [pid 5102] <... close resumed>) = 0 [pid 5102] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5103] <... write resumed>) = 2097152 [pid 5102] <... openat resumed>) = 5 [pid 5103] munmap(0x7fa7fde00000, 138412032 [pid 5105] <... sendfile resumed> => [693], 571) = 571 [pid 5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 resumed>) = 0 [pid 5102] exit_group(0) = ? [pid 5106] <... sendfile resumed> => [693], 571) = 571 [pid 5103] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5102] +++ exited with 0 +++ [pid 5048] --- 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=14 /* 0.14 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5107 ./strace-static-x86_64: Process 5107 attached [pid 5103] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5103] close(5 [pid 5107] set_robust_list(0x555556ffb660, 24) = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] memfd_create("syzkaller", 0 [pid 5105] memfd_create("syzkaller", 0 [pid 5103] <... close resumed>) = 0 [pid 5107] setpgid(0, 0 [pid 5105] <... memfd_create resumed>) = 5 [pid 5107] <... setpgid resumed>) = 0 [pid 5106] <... memfd_create resumed>) = 5 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] <... write resumed>) = 2097152 [pid 5103] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] <... mmap resumed>) = 0x7fa7fde00000 [pid 5104] munmap(0x7fa7fde00000, 138412032 [pid 5106] <... mmap resumed>) = 0x7fa7fde00000 [pid 5107] <... openat resumed>) = 3 [pid 5103] <... openat resumed>) = 5 [pid 5107] write(3, "1000", 4 [pid 5103] exit_group(0) = ? [pid 5107] <... write resumed>) = 4 [pid 5107] close(3) = 0 [pid 5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5104] <... munmap resumed>) = 0 [pid 5103] +++ exited with 0 +++ [pid 5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5107] <... openat resumed>) = 4 [pid 5107] sendfile(4, 3, [122] [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached , child_tidptr=0x555556ffb650) = 5108 [pid 5108] set_robust_list(0x555556ffb660, 24) = 0 [ 60.370877][ T5105] syz-executor638 (5105): drop_caches: 3 [ 60.393358][ T5106] syz-executor638 (5106): drop_caches: 3 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0 [pid 5104] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5108] <... setpgid resumed>) = 0 [pid 5104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] close(5) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5104] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5108] <... openat resumed>) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5104] <... openat resumed>) = 5 [pid 5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5104] exit_group(0) = ? [pid 5104] +++ exited with 0 +++ [pid 5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5109 attached [pid 5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... clone resumed>, child_tidptr=0x555556ffb650) = 5109 [pid 5108] sendfile(4, 3, [122] [pid 5109] set_robust_list(0x555556ffb660, 24) = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 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, [122] [pid 5105] <... write resumed>) = 2097152 [pid 5106] <... write resumed>) = 2097152 [pid 5105] munmap(0x7fa7fde00000, 138412032 [pid 5106] munmap(0x7fa7fde00000, 138412032 [pid 5105] <... munmap resumed>) = 0 [pid 5106] <... munmap resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5106] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5105] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] close(5 [pid 5106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5106] close(5) = 0 [pid 5106] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5105] <... close resumed>) = 0 [pid 5106] exit_group(0) = ? [pid 5106] +++ exited with 0 +++ [pid 5105] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5105] <... openat resumed>) = 5 [ 60.577279][ T5107] syz-executor638 (5107): drop_caches: 3 [ 60.583511][ T5108] syz-executor638 (5108): drop_caches: 3 [ 60.597329][ T5109] syz-executor638 (5109): drop_caches: 3 [ 60.599287][ T1093] [ 60.605327][ T1093] ====================================================== [ 60.612343][ T1093] WARNING: possible circular locking dependency detected [ 60.619361][ T1093] 6.8.0-rc2-syzkaller-00043-g2a6526c4f389 #0 Not tainted [pid 5105] exit_group(0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5105] <... exit_group resumed>) = ? [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5105] +++ exited with 0 +++ [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 60.626377][ T1093] ------------------------------------------------------ [ 60.633385][ T1093] kworker/u4:7/1093 is trying to acquire lock: [ 60.639536][ T1093] ffff888076e499c0 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1308/0x23e0 [ 60.648413][ T1093] [ 60.648413][ T1093] but task is already holding lock: [ 60.655790][ T1093] ffff888076e4d410 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630 [ 60.664735][ T1093] [ 60.664735][ T1093] which lock already depends on the new lock. [ 60.664735][ T1093] [ 60.675130][ T1093] [ 60.675130][ T1093] the existing dependency chain (in reverse order) is: [ 60.684142][ T1093] [ 60.684142][ T1093] -> #1 (&ni->mrec_lock){+.+.}-{3:3}: [ 60.691680][ T1093] lock_acquire+0x1e3/0x530 [ 60.696700][ T1093] __mutex_lock+0x136/0xd60 [ 60.701736][ T1093] map_mft_record+0x4c/0x630 [ 60.706835][ T1093] ntfs_truncate+0x267/0x2880 [ 60.712019][ T1093] ntfs_setattr+0x3f5/0x4d0 [ 60.717037][ T1093] notify_change+0xb99/0xe60 [ 60.722139][ T1093] do_truncate+0x220/0x300 [ 60.727063][ T1093] path_openat+0x29c1/0x31e0 [ 60.732161][ T1093] do_filp_open+0x234/0x490 [ 60.737172][ T1093] do_sys_openat2+0x13e/0x1d0 [ 60.742363][ T1093] __x64_sys_openat+0x247/0x290 [ 60.747724][ T1093] do_syscall_64+0xf5/0x230 [ 60.752738][ T1093] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 60.759139][ T1093] [ 60.759139][ T1093] -> #0 (&rl->lock){++++}-{3:3}: [ 60.766254][ T1093] validate_chain+0x1909/0x5ab0 [ 60.771613][ T1093] __lock_acquire+0x1345/0x1fd0 [ 60.776971][ T1093] lock_acquire+0x1e3/0x530 [ 60.781979][ T1093] down_read+0xb1/0xa40 [ 60.786639][ T1093] ntfs_read_folio+0x1308/0x23e0 [ 60.792085][ T1093] filemap_read_folio+0x19c/0x780 [ 60.797621][ T1093] do_read_cache_folio+0x134/0x810 [ 60.803244][ T1093] do_read_cache_page+0x30/0x200 [ 60.808691][ T1093] ntfs_sync_mft_mirror+0x25f/0x1ae0 [ 60.814479][ T1093] write_mft_record_nolock+0x1155/0x18f0 [ 60.820623][ T1093] write_mft_record+0x149/0x310 [ 60.825978][ T1093] __ntfs_write_inode+0x703/0xbb0 [ 60.831509][ T1093] __writeback_single_inode+0x69b/0xfc0 [ 60.837563][ T1093] writeback_sb_inodes+0x8e3/0x1220 [ 60.843270][ T1093] __writeback_inodes_wb+0x11b/0x260 [ 60.849062][ T1093] wb_writeback+0x461/0xc70 [ 60.854070][ T1093] wb_workfn+0xc33/0xfb0 [ 60.858815][ T1093] process_scheduled_works+0x90f/0x1420 [ 60.864872][ T1093] worker_thread+0xa5f/0x1000 [ 60.870066][ T1093] kthread+0x2d3/0x370 [ 60.874640][ T1093] ret_from_fork+0x48/0x80 [ 60.879565][ T1093] ret_from_fork_asm+0x11/0x20 [ 60.884838][ T1093] [ 60.884838][ T1093] other info that might help us debug this: [ 60.884838][ T1093] [ 60.895046][ T1093] Possible unsafe locking scenario: [ 60.895046][ T1093] [ 60.902473][ T1093] CPU0 CPU1 [ 60.907820][ T1093] ---- ---- [ 60.913165][ T1093] lock(&ni->mrec_lock); [ 60.917479][ T1093] lock(&rl->lock); [ 60.923967][ T1093] lock(&ni->mrec_lock); [ 60.930799][ T1093] rlock(&rl->lock); [ 60.934765][ T1093] [ 60.934765][ T1093] *** DEADLOCK *** [ 60.934765][ T1093] [ 60.942888][ T1093] 4 locks held by kworker/u4:7/1093: [ 60.948152][ T1093] #0: ffff8880176d9d38 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 60.959362][ T1093] #1: ffffc9000475fd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 60.971782][ T1093] #2: ffff8880298800e0 (&type->s_umount_key#63){.+.+}-{3:3}, at: super_trylock_shared+0x22/0xf0 [ 60.982297][ T1093] #3: ffff888076e4d410 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630 [ 60.991676][ T1093] [ 60.991676][ T1093] stack backtrace: [ 60.997548][ T1093] CPU: 1 PID: 1093 Comm: kworker/u4:7 Not tainted 6.8.0-rc2-syzkaller-00043-g2a6526c4f389 #0 [ 61.007681][ T1093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 61.017719][ T1093] Workqueue: writeback wb_workfn (flush-7:4) [ 61.023691][ T1093] Call Trace: [ 61.026956][ T1093] [ 61.029872][ T1093] dump_stack_lvl+0x1e7/0x2d0 [ 61.034540][ T1093] ? tcp_gro_dev_warn+0x260/0x260 [ 61.039554][ T1093] ? print_circular_bug+0x12b/0x1a0 [ 61.044743][ T1093] check_noncircular+0x366/0x490 [ 61.049669][ T1093] ? noop_count+0x30/0x30 [ 61.053987][ T1093] ? print_deadlock_bug+0x610/0x610 [ 61.059172][ T1093] ? lockdep_lock+0x123/0x2b0 [ 61.063835][ T1093] ? deref_stack_reg+0x1c7/0x250 [ 61.068763][ T1093] ? _find_first_zero_bit+0xd4/0x100 [ 61.074034][ T1093] validate_chain+0x1909/0x5ab0 [ 61.078880][ T1093] ? ret_from_fork_asm+0x11/0x20 [ 61.083805][ T1093] ? arch_stack_walk+0x170/0x1a0 [ 61.088729][ T1093] ? reacquire_held_locks+0x690/0x690 [ 61.094089][ T1093] ? stack_trace_save+0x117/0x1c0 [ 61.099102][ T1093] ? stack_trace_snprint+0xf0/0xf0 [ 61.104204][ T1093] ? lockdep_unlock+0x169/0x300 [ 61.109044][ T1093] ? lockdep_lock+0x2b0/0x2b0 [ 61.113710][ T1093] ? mark_lock+0x2a0/0x350 [ 61.118118][ T1093] __lock_acquire+0x1345/0x1fd0 [ 61.122960][ T1093] lock_acquire+0x1e3/0x530 [ 61.127451][ T1093] ? ntfs_read_folio+0x1308/0x23e0 [ 61.132556][ T1093] ? read_lock_is_recursive+0x20/0x20 [ 61.137915][ T1093] ? __might_sleep+0xe0/0xe0 [ 61.142493][ T1093] ? mark_lock+0x9a/0x350 [ 61.146810][ T1093] down_read+0xb1/0xa40 [ 61.150952][ T1093] ? ntfs_read_folio+0x1308/0x23e0 [ 61.156053][ T1093] ? print_irqtrace_events+0x220/0x220 [ 61.161499][ T1093] ? __down_common+0x7b0/0x7b0 [ 61.166246][ T1093] ? _raw_read_unlock_irqrestore+0x8f/0x140 [ 61.172123][ T1093] ? lockdep_hardirqs_on+0x98/0x140 [ 61.177308][ T1093] ? _raw_read_unlock_irqrestore+0xdd/0x140 [ 61.183185][ T1093] ? _raw_read_unlock+0x40/0x40 [ 61.188024][ T1093] ? create_empty_buffers+0x53e/0x740 [ 61.193384][ T1093] ntfs_read_folio+0x1308/0x23e0 [ 61.198322][ T1093] ? ntfs_writepage+0x1630/0x1630 [ 61.203338][ T1093] ? folio_add_lru+0x9d0/0x9d0 [ 61.208091][ T1093] ? folio_add_lru+0x4b2/0x9d0 [ 61.212843][ T1093] ? folio_add_lru+0x27b/0x9d0 [ 61.217596][ T1093] filemap_read_folio+0x19c/0x780 [ 61.222610][ T1093] ? ntfs_writepage+0x1630/0x1630 [ 61.227621][ T1093] ? maybe_unlock_mmap_for_io+0xe0/0xe0 [ 61.233157][ T1093] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 61.239390][ T1093] do_read_cache_folio+0x134/0x810 [ 61.244495][ T1093] ? ntfs_writepage+0x1630/0x1630 [ 61.249510][ T1093] do_read_cache_page+0x30/0x200 [ 61.254436][ T1093] ntfs_sync_mft_mirror+0x25f/0x1ae0 [ 61.259706][ T1093] ? submit_bio_noacct_nocheck+0xa2f/0xc70 [ 61.265505][ T1093] ? should_fail_request+0x80/0x80 [ 61.270605][ T1093] ? __mark_mft_record_dirty+0x180/0x180 [ 61.276232][ T1093] write_mft_record_nolock+0x1155/0x18f0 [ 61.281856][ T1093] ? ntfs_unmap_page+0x260/0x260 [ 61.286778][ T1093] ? lockdep_hardirqs_on+0x98/0x140 [ 61.291965][ T1093] write_mft_record+0x149/0x310 [ 61.296806][ T1093] __ntfs_write_inode+0x703/0xbb0 [ 61.301819][ T1093] __writeback_single_inode+0x69b/0xfc0 [ 61.307354][ T1093] writeback_sb_inodes+0x8e3/0x1220 [ 61.312551][ T1093] ? queue_io+0x570/0x570 [ 61.316868][ T1093] ? _raw_spin_unlock+0x28/0x40 [ 61.321702][ T1093] ? move_expired_inodes+0x7c8/0x810 [ 61.326979][ T1093] ? do_raw_spin_lock+0x14e/0x370 [ 61.331993][ T1093] __writeback_inodes_wb+0x11b/0x260 [ 61.337281][ T1093] wb_writeback+0x461/0xc70 [ 61.341784][ T1093] ? percpu_ref_tryget+0x260/0x260 [ 61.346890][ T1093] wb_workfn+0xc33/0xfb0 [ 61.351124][ T1093] ? inode_wait_for_writeback+0x290/0x290 [ 61.356833][ T1093] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 61.362802][ T1093] ? print_irqtrace_events+0x220/0x220 [ 61.368252][ T1093] ? process_scheduled_works+0x825/0x1420 [ 61.373957][ T1093] process_scheduled_works+0x90f/0x1420 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5110 attached [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5110 [pid 5110] set_robust_list(0x555556ffb660, 24) = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5111 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5110] write(3, "1000", 4./strace-static-x86_64: Process 5111 attached ) = 4 [pid 5111] set_robust_list(0x555556ffb660, 24 [pid 5110] close(3 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5111] <... prctl resumed>) = 0 [pid 5111] setpgid(0, 0) = 0 [pid 5110] <... openat resumed>) = 3 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5111] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 4 [pid 5111] write(3, "1000", 4 [pid 5110] sendfile(4, 3, [122] [pid 5111] <... write resumed>) = 4 [pid 5111] close(3) = 0 [pid 5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 61.379496][ T1093] ? assign_work+0x3d0/0x3d0 [ 61.384073][ T1093] ? assign_work+0x364/0x3d0 [ 61.388668][ T1093] worker_thread+0xa5f/0x1000 [ 61.393342][ T1093] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 61.399243][ T1093] kthread+0x2d3/0x370 [ 61.403317][ T1093] ? pr_cont_work+0x5e0/0x5e0 [ 61.407987][ T1093] ? kthread_blkcg+0xd0/0xd0 [ 61.412561][ T1093] ret_from_fork+0x48/0x80 [ 61.416965][ T1093] ? kthread_blkcg+0xd0/0xd0 [ 61.421540][ T1093] ret_from_fork_asm+0x11/0x20 [ 61.426297][ T1093] [pid 5111] sendfile(4, 3, [122] [pid 5109] <... sendfile resumed> => [693], 571) = 571 [pid 5109] memfd_create("syzkaller", 0) = 5 [ 61.455377][ T5109] syz-executor638 (5109): drop_caches: 3 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 61.508920][ T5111] syz-executor638 (5111): drop_caches: 3 [ 61.541716][ T5107] syz-executor638 (5107): drop_caches: 3 [ 61.552074][ T5108] syz-executor638 (5108): drop_caches: 3 [pid 5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5109] munmap(0x7fa7fde00000, 138412032 [pid 5107] <... sendfile resumed> => [693], 571) = 571 [pid 5107] memfd_create("syzkaller", 0 [pid 5109] <... munmap resumed>) = 0 [pid 5107] <... memfd_create resumed>) = 5 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5111] <... sendfile resumed> => [693], 571) = 571 [pid 5109] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5108] <... sendfile resumed> => [693], 571) = 571 [pid 5108] memfd_create("syzkaller", 0 [pid 5109] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5108] <... memfd_create resumed>) = 5 [pid 5109] close(5 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5109] <... close resumed>) = 0 [pid 5108] <... mmap resumed>) = 0x7fa7fde00000 [pid 5111] memfd_create("syzkaller", 0 [pid 5109] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5111] <... memfd_create resumed>) = 5 [pid 5109] exit_group(0 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5109] <... exit_group resumed>) = ? [ 61.556354][ T5110] syz-executor638 (5110): drop_caches: 3 [ 61.573223][ T5111] syz-executor638 (5111): drop_caches: 3 [pid 5109] +++ exited with 0 +++ [pid 5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5110] <... sendfile resumed> => [693], 571) = 571 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5110] memfd_create("syzkaller", 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5110] <... memfd_create resumed>) = 5 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 ./strace-static-x86_64: Process 5112 attached [pid 5112] set_robust_list(0x555556ffb660, 24 [pid 5111] <... write resumed>) = 2097152 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5112 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5111] munmap(0x7fa7fde00000, 138412032 [pid 5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5108] <... write resumed>) = 2097152 [pid 5107] <... write resumed>) = 2097152 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5112] write(3, "1000", 4 [pid 5111] <... munmap resumed>) = 0 [pid 5108] munmap(0x7fa7fde00000, 138412032 [pid 5107] munmap(0x7fa7fde00000, 138412032 [pid 5112] <... write resumed>) = 4 [pid 5111] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5108] <... munmap resumed>) = 0 [pid 5112] close(3 [pid 5111] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5112] <... close resumed>) = 0 [pid 5111] close(5 [pid 5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5110] <... write resumed>) = 2097152 [pid 5112] sendfile(4, 3, [122] [pid 5110] munmap(0x7fa7fde00000, 138412032 [pid 5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5107] <... munmap resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 61.625294][ T5110] syz-executor638 (5110): drop_caches: 3 [pid 5107] close(5 [pid 5111] <... close resumed>) = 0 [pid 5110] <... munmap resumed>) = 0 [pid 5108] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5111] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5110] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5108] close(5 [pid 5107] <... close resumed>) = 0 [pid 5108] <... close resumed>) = 0 [pid 5107] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5111] <... openat resumed>) = 5 [pid 5110] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5108] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5111] exit_group(0 [pid 5110] close(5 [pid 5108] <... openat resumed>) = 5 [pid 5107] <... openat resumed>) = 5 [pid 5111] <... exit_group resumed>) = ? [pid 5108] exit_group(0 [pid 5107] exit_group(0 [pid 5108] <... exit_group resumed>) = ? [pid 5107] <... exit_group resumed>) = ? [pid 5111] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ [pid 5052] --- 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=12 /* 0.12 s */} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5048] --- 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=11 /* 0.11 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5115 attached ./strace-static-x86_64: Process 5114 attached [pid 5113] set_robust_list(0x555556ffb660, 24 [pid 5110] <... close resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5113 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5114 [pid 5115] set_robust_list(0x555556ffb660, 24 [pid 5114] set_robust_list(0x555556ffb660, 24 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5115 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] <... prctl resumed>) = 0 [pid 5110] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5115] <... prctl resumed>) = 0 [pid 5114] <... prctl resumed>) = 0 [pid 5113] setpgid(0, 0 [pid 5110] <... openat resumed>) = 5 [pid 5115] setpgid(0, 0 [pid 5114] setpgid(0, 0 [pid 5113] <... setpgid resumed>) = 0 [pid 5115] <... setpgid resumed>) = 0 [pid 5114] <... setpgid resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] exit_group(0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... openat resumed>) = 3 [pid 5110] <... exit_group resumed>) = ? [pid 5115] <... openat resumed>) = 3 [pid 5114] <... openat resumed>) = 3 [pid 5113] write(3, "1000", 4 [pid 5115] write(3, "1000", 4 [pid 5113] <... write resumed>) = 4 [pid 5115] <... write resumed>) = 4 [pid 5113] close(3 [pid 5115] close(3 [pid 5113] <... close resumed>) = 0 [pid 5115] <... close resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5110] +++ exited with 0 +++ [pid 5115] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5113] <... openat resumed>) = 3 [pid 5051] --- 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 5115] <... openat resumed>) = 3 [pid 5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5115] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5114] write(3, "1000", 4 [pid 5113] <... openat resumed>) = 4 [pid 5114] <... write resumed>) = 4 [pid 5114] close(3 [pid 5115] <... openat resumed>) = 4 [pid 5114] <... close resumed>) = 0 [pid 5113] sendfile(4, 3, [122] [pid 5115] sendfile(4, 3, [122] [pid 5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5112] <... sendfile resumed> => [693], 571) = 571 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5114] <... openat resumed>) = 3 [pid 5112] memfd_create("syzkaller", 0 [pid 5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5112] <... memfd_create resumed>) = 5 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] <... openat resumed>) = 4 [pid 5114] sendfile(4, 3, [122] [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5112] <... mmap resumed>) = 0x7fa7fde00000 ./strace-static-x86_64: Process 5116 attached [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5116 [pid 5116] set_robust_list(0x555556ffb660, 24) = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0) = 0 [ 61.712934][ T5112] syz-executor638 (5112): drop_caches: 3 [ 61.749587][ T5112] syz-executor638 (5112): drop_caches: 3 [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 5112] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5112] <... write resumed>) = 2097152 [pid 5116] <... openat resumed>) = 4 [pid 5116] sendfile(4, 3, [122] [pid 5112] munmap(0x7fa7fde00000, 138412032) = 0 [ 61.808313][ T5115] syz-executor638 (5115): drop_caches: 3 [ 61.816415][ T5114] syz-executor638 (5114): drop_caches: 3 [ 61.817172][ T5113] syz-executor638 (5113): drop_caches: 3 [pid 5112] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5113] <... sendfile resumed> => [693], 571) = 571 [pid 5112] close(5 [pid 5113] memfd_create("syzkaller", 0) = 5 [pid 5112] <... close resumed>) = 0 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5112] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5112] exit_group(0) = ? [pid 5112] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [ 61.854981][ T5113] syz-executor638 (5113): drop_caches: 3 [ 61.882465][ T5115] syz-executor638 (5115): drop_caches: 3 [ 61.895638][ T5116] syz-executor638 (5116): drop_caches: 3 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5115] <... sendfile resumed> => [693], 571) = 571 [pid 5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... restart_syscall resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5117 ./strace-static-x86_64: Process 5117 attached [pid 5115] memfd_create("syzkaller", 0 [pid 5117] set_robust_list(0x555556ffb660, 24) = 0 [pid 5115] <... memfd_create resumed>) = 5 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... prctl resumed>) = 0 [pid 5115] <... mmap resumed>) = 0x7fa7fde00000 [pid 5117] setpgid(0, 0) = 0 [pid 5114] <... sendfile resumed> => [693], 571) = 571 [pid 5114] memfd_create("syzkaller", 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] <... memfd_create resumed>) = 5 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 61.903532][ T5114] syz-executor638 (5114): drop_caches: 3 [pid 5117] sendfile(4, 3, [122] [pid 5115] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5113] munmap(0x7fa7fde00000, 138412032 [pid 5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5113] <... munmap resumed>) = 0 [pid 5116] <... sendfile resumed> => [693], 571) = 571 [pid 5113] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5113] close(5 [pid 5116] memfd_create("syzkaller", 0) = 5 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 61.949692][ T5116] syz-executor638 (5116): drop_caches: 3 [pid 5115] <... write resumed>) = 2097152 [pid 5115] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5113] <... close resumed>) = 0 [pid 5113] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5113] exit_group(0 [pid 5115] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5114] <... write resumed>) = 2097152 [pid 5113] <... exit_group resumed>) = ? [pid 5115] close(5 [pid 5114] munmap(0x7fa7fde00000, 138412032 [pid 5117] <... sendfile resumed> => [693], 571) = 571 [pid 5113] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5117] memfd_create("syzkaller", 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] <... memfd_create resumed>) = 5 [pid 5116] <... write resumed>) = 2097152 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5116] munmap(0x7fa7fde00000, 138412032 [pid 5114] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5118 attached [pid 5117] <... mmap resumed>) = 0x7fa7fde00000 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5118 [pid 5114] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5118] set_robust_list(0x555556ffb660, 24 [pid 5114] close(5 [pid 5116] <... munmap resumed>) = 0 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5115] <... close resumed>) = 0 [pid 5114] <... close resumed>) = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5114] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5118] <... prctl resumed>) = 0 [pid 5116] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5115] <... openat resumed>) = 5 [pid 5114] <... openat resumed>) = 5 [pid 5118] setpgid(0, 0 [pid 5116] close(5 [pid 5118] <... setpgid resumed>) = 0 [ 61.991790][ T5117] syz-executor638 (5117): drop_caches: 3 [ 62.024957][ T5117] syz-executor638 (5117): drop_caches: 3 [pid 5114] exit_group(0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] exit_group(0 [pid 5118] <... openat resumed>) = 3 [pid 5117] <... write resumed>) = 2097152 [pid 5116] <... close resumed>) = 0 [pid 5115] <... exit_group resumed>) = ? [pid 5114] <... exit_group resumed>) = ? [pid 5118] write(3, "1000", 4 [pid 5116] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5118] <... write resumed>) = 4 [pid 5118] close(3 [pid 5117] munmap(0x7fa7fde00000, 138412032 [pid 5116] <... openat resumed>) = 5 [pid 5118] <... close resumed>) = 0 [pid 5116] exit_group(0 [pid 5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5116] <... exit_group resumed>) = ? [pid 5118] <... openat resumed>) = 3 [pid 5116] +++ exited with 0 +++ [pid 5114] +++ exited with 0 +++ [pid 5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=6 /* 0.06 s */} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5118] <... openat resumed>) = 4 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5118] sendfile(4, 3, [122] [pid 5048] <... restart_syscall resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5119 attached [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] set_robust_list(0x555556ffb660, 24) = 0 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5120 attached ) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5119 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5120 [pid 5120] set_robust_list(0x555556ffb660, 24 [pid 5119] setpgid(0, 0) = 0 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5119] <... openat resumed>) = 3 [pid 5120] setpgid(0, 0 [pid 5119] write(3, "1000", 4 [pid 5120] <... setpgid resumed>) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5119] <... write resumed>) = 4 [pid 5119] close(3) = 0 [pid 5120] <... openat resumed>) = 3 [pid 5117] <... munmap resumed>) = 0 [pid 5115] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5117] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5117] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] close(5 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5121 ./strace-static-x86_64: Process 5121 attached [pid 5119] <... openat resumed>) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3 [pid 5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5121] set_robust_list(0x555556ffb660, 24) = 0 [pid 5120] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = 4 [pid 5119] sendfile(4, 3, [122] [pid 5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5120] <... openat resumed>) = 3 [pid 5117] <... close resumed>) = 0 [pid 5121] <... prctl resumed>) = 0 [pid 5117] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5121] setpgid(0, 0) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5121] <... openat resumed>) = 3 [pid 5120] <... openat resumed>) = 4 [pid 5121] write(3, "1000", 4) = 4 [pid 5120] sendfile(4, 3, [122] [pid 5121] close(3) = 0 [pid 5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5117] <... openat resumed>) = 5 [pid 5117] exit_group(0 [pid 5121] <... openat resumed>) = 3 [pid 5117] <... exit_group resumed>) = ? [ 62.103022][ T5118] syz-executor638 (5118): drop_caches: 3 [pid 5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5117] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5121] sendfile(4, 3, [122] [pid 5122] set_robust_list(0x555556ffb660, 24) = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 [pid 5118] <... sendfile resumed> => [693], 571) = 571 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5118] memfd_create("syzkaller", 0 [pid 5122] <... openat resumed>) = 3 [pid 5118] <... memfd_create resumed>) = 5 [pid 5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5122] <... openat resumed>) = 4 [pid 5118] <... mmap resumed>) = 0x7fa7fde00000 [ 62.153662][ T5118] syz-executor638 (5118): drop_caches: 3 [ 62.173439][ T5119] syz-executor638 (5119): drop_caches: 3 [ 62.181891][ T5120] syz-executor638 (5120): drop_caches: 3 [ 62.190465][ T5121] syz-executor638 (5121): drop_caches: 3 [pid 5122] sendfile(4, 3, [122] [pid 5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5121] <... sendfile resumed> => [693], 571) = 571 [pid 5119] <... sendfile resumed> => [693], 571) = 571 [pid 5120] memfd_create("syzkaller", 0 [pid 5121] memfd_create("syzkaller", 0 [pid 5120] <... memfd_create resumed>) = 5 [pid 5119] memfd_create("syzkaller", 0 [pid 5118] <... write resumed>) = 2097152 [pid 5121] <... memfd_create resumed>) = 5 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5119] <... memfd_create resumed>) = 5 [pid 5118] munmap(0x7fa7fde00000, 138412032 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5120] <... mmap resumed>) = 0x7fa7fde00000 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] <... munmap resumed>) = 0 [pid 5121] <... mmap resumed>) = 0x7fa7fde00000 [pid 5119] <... mmap resumed>) = 0x7fa7fde00000 [pid 5118] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 62.230440][ T5120] syz-executor638 (5120): drop_caches: 3 [ 62.248220][ T5119] syz-executor638 (5119): drop_caches: 3 [ 62.251857][ T5121] syz-executor638 (5121): drop_caches: 3 [ 62.270480][ T5122] syz-executor638 (5122): drop_caches: 3 [pid 5118] close(5 [pid 5122] <... sendfile resumed> => [693], 571) = 571 [pid 5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... close resumed>) = 0 [pid 5118] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5122] memfd_create("syzkaller", 0 [pid 5118] <... openat resumed>) = 5 [pid 5118] exit_group(0) = ? [pid 5122] <... memfd_create resumed>) = 5 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] +++ exited with 0 +++ [pid 5122] <... mmap resumed>) = 0x7fa7fde00000 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5123 ./strace-static-x86_64: Process 5123 attached [pid 5123] set_robust_list(0x555556ffb660, 24) = 0 [pid 5120] <... write resumed>) = 2097152 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] munmap(0x7fa7fde00000, 138412032 [pid 5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] setpgid(0, 0 [pid 5121] <... write resumed>) = 2097152 [pid 5120] <... munmap resumed>) = 0 [pid 5123] <... setpgid resumed>) = 0 [pid 5121] munmap(0x7fa7fde00000, 138412032 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5121] <... munmap resumed>) = 0 [pid 5120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] <... openat resumed>) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5120] close(5 [pid 5123] <... openat resumed>) = 3 [ 62.306127][ T5122] syz-executor638 (5122): drop_caches: 3 [pid 5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5121] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5120] <... close resumed>) = 0 [pid 5119] <... write resumed>) = 2097152 [pid 5123] <... openat resumed>) = 4 [pid 5121] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] sendfile(4, 3, [122] [pid 5121] close(5 [pid 5122] <... write resumed>) = 2097152 [pid 5120] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5119] munmap(0x7fa7fde00000, 138412032 [pid 5122] munmap(0x7fa7fde00000, 138412032 [pid 5120] <... openat resumed>) = 5 [pid 5119] <... munmap resumed>) = 0 [pid 5122] <... munmap resumed>) = 0 [pid 5121] <... close resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5121] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5120] exit_group(0 [pid 5119] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5122] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5121] <... openat resumed>) = 5 [pid 5120] <... exit_group resumed>) = ? [pid 5119] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] close(5 [pid 5122] close(5 [pid 5121] exit_group(0) = ? [pid 5120] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached [pid 5124] set_robust_list(0x555556ffb660, 24 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5124 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] <... close resumed>) = 0 [pid 5124] setpgid(0, 0) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4 [pid 5122] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5124] <... write resumed>) = 4 [pid 5124] close(3 [pid 5122] <... openat resumed>) = 5 [pid 5124] <... close resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5121] +++ exited with 0 +++ [pid 5124] <... openat resumed>) = 3 [pid 5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5124] sendfile(4, 3, [122] [pid 5122] exit_group(0 [pid 5119] <... close resumed>) = 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5122] <... exit_group resumed>) = ? [pid 5122] +++ exited with 0 +++ [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5125 ./strace-static-x86_64: Process 5126 attached [pid 5119] <... openat resumed>) = 5 [pid 5126] set_robust_list(0x555556ffb660, 24 [pid 5119] exit_group(0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5126 ./strace-static-x86_64: Process 5125 attached [pid 5126] <... set_robust_list resumed>) = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5126] setpgid(0, 0) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] set_robust_list(0x555556ffb660, 24 [pid 5119] <... exit_group resumed>) = ? [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3) = 0 [pid 5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5126] sendfile(4, 3, [122] [pid 5125] <... set_robust_list resumed>) = 0 [pid 5119] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [ 62.404942][ T5123] syz-executor638 (5123): drop_caches: 3 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] setpgid(0, 0 [pid 5123] <... sendfile resumed> => [693], 571) = 571 [pid 5125] <... setpgid resumed>) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5125] <... openat resumed>) = 3 [pid 5125] write(3, "1000", 4 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5125] <... write resumed>) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5127 [pid 5125] close(3) = 0 ./strace-static-x86_64: Process 5127 attached [pid 5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5123] memfd_create("syzkaller", 0 [pid 5125] <... openat resumed>) = 3 [pid 5127] set_robust_list(0x555556ffb660, 24) = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [ 62.468892][ T5123] syz-executor638 (5123): drop_caches: 3 [ 62.476882][ T5124] syz-executor638 (5124): drop_caches: 3 [ 62.481033][ T5126] syz-executor638 (5126): drop_caches: 3 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5123] <... memfd_create resumed>) = 5 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] write(3, "1000", 4 [pid 5123] <... mmap resumed>) = 0x7fa7fde00000 [pid 5125] <... openat resumed>) = 4 [pid 5127] <... write resumed>) = 4 [pid 5127] close(3) = 0 [pid 5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5125] sendfile(4, 3, [122] [pid 5127] <... openat resumed>) = 3 [pid 5124] <... sendfile resumed> => [693], 571) = 571 [pid 5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5124] memfd_create("syzkaller", 0 [pid 5127] <... openat resumed>) = 4 [pid 5127] sendfile(4, 3, [122] [pid 5124] <... memfd_create resumed>) = 5 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 62.511692][ T5124] syz-executor638 (5124): drop_caches: 3 [ 62.549553][ T5126] syz-executor638 (5126): drop_caches: 3 [pid 5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] memfd_create("syzkaller", 0 [pid 5123] <... write resumed>) = 2097152 [pid 5126] <... memfd_create resumed>) = 5 [pid 5124] <... write resumed>) = 2097152 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5123] munmap(0x7fa7fde00000, 138412032 [ 62.561611][ T5125] syz-executor638 (5125): drop_caches: 3 [ 62.569635][ T5127] syz-executor638 (5127): drop_caches: 3 [pid 5124] munmap(0x7fa7fde00000, 138412032 [pid 5123] <... munmap resumed>) = 0 [pid 5124] <... munmap resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5123] close(5 [pid 5125] <... sendfile resumed> => [693], 571) = 571 [pid 5126] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5125] memfd_create("syzkaller", 0 [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] close(5 [pid 5125] <... memfd_create resumed>) = 5 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5127] <... sendfile resumed> => [693], 571) = 571 [pid 5123] <... close resumed>) = 0 [pid 5123] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5127] memfd_create("syzkaller", 0 [pid 5126] <... write resumed>) = 2097152 [pid 5124] <... close resumed>) = 0 [pid 5127] <... memfd_create resumed>) = 5 [pid 5126] munmap(0x7fa7fde00000, 138412032 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5123] <... openat resumed>) = 5 [pid 5127] <... mmap resumed>) = 0x7fa7fde00000 [pid 5124] <... openat resumed>) = 5 [pid 5123] exit_group(0 [pid 5126] <... munmap resumed>) = 0 [pid 5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 [pid 5123] <... exit_group resumed>) = ? [pid 5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5124] <... exit_group resumed>) = ? [pid 5123] +++ exited with 0 +++ [pid 5126] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5126] close(5 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5128 ./strace-static-x86_64: Process 5128 attached [pid 5125] <... write resumed>) = 2097152 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5128] set_robust_list(0x555556ffb660, 24 [pid 5125] munmap(0x7fa7fde00000, 138412032 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached , child_tidptr=0x555556ffb650) = 5129 [pid 5129] set_robust_list(0x555556ffb660, 24 [pid 5128] <... set_robust_list resumed>) = 0 [ 62.611823][ T5125] syz-executor638 (5125): drop_caches: 3 [ 62.637732][ T5127] syz-executor638 (5127): drop_caches: 3 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] <... munmap resumed>) = 0 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5128] setpgid(0, 0 [pid 5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5128] <... setpgid resumed>) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] <... openat resumed>) = 3 [pid 5125] close(5 [pid 5128] write(3, "1000", 4 [pid 5129] <... prctl resumed>) = 0 [pid 5129] setpgid(0, 0 [pid 5128] <... write resumed>) = 4 [pid 5129] <... setpgid resumed>) = 0 [pid 5128] close(3 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] <... close resumed>) = 0 [pid 5129] <... openat resumed>) = 3 [pid 5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5129] write(3, "1000", 4 [pid 5128] <... openat resumed>) = 3 [pid 5129] <... write resumed>) = 4 [pid 5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5129] close(3 [pid 5128] <... openat resumed>) = 4 [pid 5127] <... write resumed>) = 2097152 [pid 5126] <... close resumed>) = 0 [pid 5129] <... close resumed>) = 0 [pid 5128] sendfile(4, 3, [122] [pid 5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5129] sendfile(4, 3, [122] [pid 5126] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5127] munmap(0x7fa7fde00000, 138412032 [pid 5126] exit_group(0) = ? [pid 5125] <... close resumed>) = 0 [pid 5127] <... munmap resumed>) = 0 [pid 5125] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5126] +++ exited with 0 +++ [pid 5125] <... openat resumed>) = 5 [pid 5125] exit_group(0) = ? [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5127] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5052] <... restart_syscall resumed>) = 0 [pid 5127] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] +++ exited with 0 +++ [pid 5127] close(5 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5130 ./strace-static-x86_64: Process 5130 attached [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5130] set_robust_list(0x555556ffb660, 24) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5130] <... prctl resumed>) = 0 [pid 5130] setpgid(0, 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5130] <... setpgid resumed>) = 0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] write(3, "1000", 4 [pid 5127] <... close resumed>) = 0 ./strace-static-x86_64: Process 5131 attached [pid 5130] <... write resumed>) = 4 [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5127] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5131] set_robust_list(0x555556ffb660, 24 [pid 5130] <... openat resumed>) = 3 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5127] <... openat resumed>) = 5 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5131 [pid 5130] <... openat resumed>) = 4 [pid 5130] sendfile(4, 3, [122] [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5131] setpgid(0, 0) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5131] write(3, "1000", 4) = 4 [pid 5131] close(3) = 0 [pid 5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5131] sendfile(4, 3, [122] [pid 5127] exit_group(0) = ? [ 62.740364][ T5128] syz-executor638 (5128): drop_caches: 3 [ 62.758304][ T5129] syz-executor638 (5129): drop_caches: 3 [pid 5127] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached [pid 5132] set_robust_list(0x555556ffb660, 24 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5132 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] write(3, "1000", 4) = 4 [pid 5132] close(3) = 0 [pid 5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5132] sendfile(4, 3, [122] [pid 5128] <... sendfile resumed> => [693], 571) = 571 [pid 5128] memfd_create("syzkaller", 0) = 5 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 62.784438][ T5128] syz-executor638 (5128): drop_caches: 3 [ 62.823310][ T5130] syz-executor638 (5130): drop_caches: 3 [pid 5129] <... sendfile resumed> => [693], 571) = 571 [pid 5129] memfd_create("syzkaller", 0) = 5 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 62.833842][ T5129] syz-executor638 (5129): drop_caches: 3 [ 62.845628][ T5131] syz-executor638 (5131): drop_caches: 3 [ 62.848830][ T5132] syz-executor638 (5132): drop_caches: 3 [pid 5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5128] munmap(0x7fa7fde00000, 138412032 [pid 5131] <... sendfile resumed> => [693], 571) = 571 [pid 5128] <... munmap resumed>) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5130] <... sendfile resumed> => [693], 571) = 571 [pid 5128] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5130] memfd_create("syzkaller", 0 [pid 5128] close(5 [pid 5130] <... memfd_create resumed>) = 5 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] memfd_create("syzkaller", 0 [pid 5130] <... mmap resumed>) = 0x7fa7fde00000 [pid 5128] <... close resumed>) = 0 [pid 5131] <... memfd_create resumed>) = 5 [pid 5128] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5128] <... openat resumed>) = 5 [pid 5129] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] exit_group(0) = ? [pid 5132] <... sendfile resumed> => [693], 571) = 571 [pid 5132] memfd_create("syzkaller", 0 [pid 5128] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5132] <... memfd_create resumed>) = 5 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5132] <... mmap resumed>) = 0x7fa7fde00000 [pid 5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5133 ./strace-static-x86_64: Process 5133 attached [pid 5133] set_robust_list(0x555556ffb660, 24 [pid 5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5129] <... write resumed>) = 2097152 [pid 5133] <... set_robust_list resumed>) = 0 [ 62.902702][ T5130] syz-executor638 (5130): drop_caches: 3 [ 62.918469][ T5131] syz-executor638 (5131): drop_caches: 3 [ 62.937754][ T5132] syz-executor638 (5132): drop_caches: 3 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] munmap(0x7fa7fde00000, 138412032 [pid 5133] <... openat resumed>) = 3 [pid 5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5130] <... write resumed>) = 2097152 [pid 5133] write(3, "1000", 4) = 4 [pid 5131] munmap(0x7fa7fde00000, 138412032 [pid 5133] close(3) = 0 [pid 5131] <... munmap resumed>) = 0 [pid 5130] munmap(0x7fa7fde00000, 138412032 [pid 5129] <... munmap resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5133] sendfile(4, 3, [122] [pid 5131] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5132] <... write resumed>) = 2097152 [pid 5130] <... munmap resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5132] munmap(0x7fa7fde00000, 138412032 [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5129] close(5 [pid 5131] close(5 [pid 5130] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] <... munmap resumed>) = 0 [pid 5131] <... close resumed>) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5130] close(5 [pid 5129] <... close resumed>) = 0 [pid 5131] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5132] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5132] close(5 [pid 5131] <... openat resumed>) = 5 [pid 5129] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5129] exit_group(0) = ? [pid 5129] +++ exited with 0 +++ [pid 5131] exit_group(0) = ? [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 5131] +++ exited with 0 +++ [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5050] --- 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=6 /* 0.06 s */} --- [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5134 attached [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5134 [ 63.021655][ T5133] syz-executor638 (5133): drop_caches: 3 [pid 5134] set_robust_list(0x555556ffb660, 24./strace-static-x86_64: Process 5135 attached [pid 5135] set_robust_list(0x555556ffb660, 24) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0 [pid 5130] <... close resumed>) = 0 [pid 5135] <... setpgid resumed>) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5135 [pid 5135] write(3, "1000", 4 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... sendfile resumed> => [693], 571) = 571 [pid 5135] <... write resumed>) = 4 [pid 5135] close(3) = 0 [pid 5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5134] <... prctl resumed>) = 0 [pid 5134] setpgid(0, 0 [pid 5135] <... openat resumed>) = 3 [pid 5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5135] sendfile(4, 3, [122] [pid 5134] <... setpgid resumed>) = 0 [pid 5133] memfd_create("syzkaller", 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5133] <... memfd_create resumed>) = 5 [pid 5132] <... close resumed>) = 0 [pid 5130] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5134] <... openat resumed>) = 3 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5134] write(3, "1000", 4 [pid 5132] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5134] <... write resumed>) = 4 [pid 5133] <... mmap resumed>) = 0x7fa7fde00000 [pid 5130] <... openat resumed>) = 5 [pid 5132] <... openat resumed>) = 5 [pid 5130] exit_group(0 [pid 5134] close(3 [pid 5130] <... exit_group resumed>) = ? [pid 5134] <... close resumed>) = 0 [pid 5132] exit_group(0 [pid 5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5132] <... exit_group resumed>) = ? [pid 5130] +++ exited with 0 +++ [pid 5134] <... openat resumed>) = 3 [pid 5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5134] sendfile(4, 3, [122] [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 63.066269][ T5133] syz-executor638 (5133): drop_caches: 3 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] set_robust_list(0x555556ffb660, 24) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5137 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5136 [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 ./strace-static-x86_64: Process 5137 attached [pid 5136] close(3) = 0 [pid 5137] set_robust_list(0x555556ffb660, 24) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL [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, [122] [pid 5137] <... prctl resumed>) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5133] <... write resumed>) = 2097152 [pid 5133] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5137] write(3, "1000", 4 [pid 5133] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5137] <... write resumed>) = 4 [pid 5133] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5137] close(3 [pid 5133] close(5 [pid 5137] <... close resumed>) = 0 [pid 5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 63.115227][ T5135] syz-executor638 (5135): drop_caches: 3 [pid 5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5133] <... close resumed>) = 0 [pid 5137] <... openat resumed>) = 4 [pid 5137] sendfile(4, 3, [122] [pid 5133] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5133] exit_group(0) = ? [pid 5133] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5138 attached , child_tidptr=0x555556ffb650) = 5138 [pid 5138] set_robust_list(0x555556ffb660, 24) = 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 5138] write(3, "1000", 4) = 4 [pid 5138] close(3) = 0 [pid 5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5138] sendfile(4, 3, [122] [pid 5135] <... sendfile resumed> => [693], 571) = 571 [ 63.157437][ T5134] syz-executor638 (5134): drop_caches: 3 [ 63.178198][ T5136] syz-executor638 (5136): drop_caches: 3 [ 63.195117][ T5135] syz-executor638 (5135): drop_caches: 3 [pid 5135] memfd_create("syzkaller", 0) = 5 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5136] <... sendfile resumed> => [693], 571) = 571 [pid 5134] <... sendfile resumed> => [693], 571) = 571 [pid 5134] memfd_create("syzkaller", 0 [pid 5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5134] <... memfd_create resumed>) = 5 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 63.219598][ T5137] syz-executor638 (5137): drop_caches: 3 [ 63.230996][ T5134] syz-executor638 (5134): drop_caches: 3 [ 63.244323][ T5138] syz-executor638 (5138): drop_caches: 3 [ 63.255874][ T5136] syz-executor638 (5136): drop_caches: 3 [pid 5136] memfd_create("syzkaller", 0) = 5 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5137] <... sendfile resumed> => [693], 571) = 571 [pid 5137] memfd_create("syzkaller", 0) = 5 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5135] <... write resumed>) = 2097152 [pid 5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5135] munmap(0x7fa7fde00000, 138412032 [pid 5138] <... sendfile resumed> => [693], 571) = 571 [pid 5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5135] <... munmap resumed>) = 0 [pid 5138] memfd_create("syzkaller", 0) = 5 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5135] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5135] close(5) = 0 [pid 5136] <... write resumed>) = 2097152 [pid 5136] munmap(0x7fa7fde00000, 138412032 [pid 5134] <... write resumed>) = 2097152 [ 63.285309][ T5137] syz-executor638 (5137): drop_caches: 3 [ 63.311857][ T5138] syz-executor638 (5138): drop_caches: 3 [pid 5136] <... munmap resumed>) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5136] close(5 [pid 5134] munmap(0x7fa7fde00000, 138412032 [pid 5137] <... write resumed>) = 2097152 [pid 5135] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5134] <... munmap resumed>) = 0 [pid 5137] munmap(0x7fa7fde00000, 138412032 [pid 5135] <... openat resumed>) = 5 [pid 5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5135] exit_group(0 [pid 5134] close(5 [pid 5135] <... exit_group resumed>) = ? [pid 5136] <... close resumed>) = 0 [pid 5136] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5138] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... munmap resumed>) = 0 [pid 5135] +++ exited with 0 +++ [pid 5134] <... close resumed>) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5137] close(5 [pid 5134] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5136] <... openat resumed>) = 5 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] exit_group(0 [pid 5134] <... openat resumed>) = 5 [pid 5136] <... exit_group resumed>) = ? [pid 5134] exit_group(0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5139 ./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x555556ffb660, 24) = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5136] +++ exited with 0 +++ [pid 5139] setpgid(0, 0 [pid 5134] <... exit_group resumed>) = ? [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5139] <... setpgid resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] <... restart_syscall resumed>) = 0 [pid 5139] <... openat resumed>) = 3 [pid 5139] write(3, "1000", 4 [pid 5137] <... close resumed>) = 0 [pid 5134] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5140 attached [pid 5139] <... write resumed>) = 4 [pid 5139] close(3 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5140 [pid 5140] set_robust_list(0x555556ffb660, 24 [pid 5139] <... close resumed>) = 0 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached [pid 5140] <... prctl resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5138] <... write resumed>) = 2097152 [pid 5137] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5140] setpgid(0, 0 [pid 5138] munmap(0x7fa7fde00000, 138412032 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5141 [pid 5140] <... setpgid resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] <... openat resumed>) = 3 [pid 5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5141] set_robust_list(0x555556ffb660, 24 [pid 5140] <... openat resumed>) = 3 [pid 5138] <... munmap resumed>) = 0 [pid 5137] <... openat resumed>) = 5 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5139] <... openat resumed>) = 4 [pid 5138] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5137] exit_group(0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] write(3, "1000", 4 [pid 5139] sendfile(4, 3, [122] [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5137] <... exit_group resumed>) = ? [pid 5141] <... prctl resumed>) = 0 [pid 5140] <... write resumed>) = 4 [pid 5138] close(5 [pid 5140] close(3) = 0 [pid 5141] setpgid(0, 0 [pid 5138] <... close resumed>) = 0 [pid 5137] +++ exited with 0 +++ [pid 5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5140] <... openat resumed>) = 3 [pid 5138] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5141] <... setpgid resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5142 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] setpgid(0, 0) = 0 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5142] write(3, "1000", 4) = 4 [pid 5142] close(3) = 0 [pid 5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] <... openat resumed>) = 3 [pid 5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5138] <... openat resumed>) = 5 [pid 5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5141] <... openat resumed>) = 3 [pid 5142] <... openat resumed>) = 4 [pid 5142] sendfile(4, 3, [122] [pid 5141] write(3, "1000", 4 [pid 5140] <... openat resumed>) = 4 [pid 5138] exit_group(0 [pid 5141] <... write resumed>) = 4 [pid 5138] <... exit_group resumed>) = ? [pid 5140] sendfile(4, 3, [122] [pid 5141] close(3) = 0 [pid 5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5141] sendfile(4, 3, [122] [pid 5138] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached , child_tidptr=0x555556ffb650) = 5143 [pid 5143] set_robust_list(0x555556ffb660, 24) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5143] sendfile(4, 3, [122] [pid 5142] <... sendfile resumed> => [693], 571) = 571 [pid 5142] memfd_create("syzkaller", 0) = 5 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 63.488848][ T5142] syz-executor638 (5142): drop_caches: 3 [ 63.508179][ T5139] syz-executor638 (5139): drop_caches: 3 [ 63.514825][ T5140] syz-executor638 (5140): drop_caches: 3 [ 63.524381][ T5141] syz-executor638 (5141): drop_caches: 3 [ 63.528309][ T5142] syz-executor638 (5142): drop_caches: 3 [pid 5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5139] <... sendfile resumed> => [693], 571) = 571 [pid 5139] memfd_create("syzkaller", 0 [pid 5141] <... sendfile resumed> => [693], 571) = 571 [pid 5139] <... memfd_create resumed>) = 5 [pid 5141] memfd_create("syzkaller", 0 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... memfd_create resumed>) = 5 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5140] <... sendfile resumed> => [693], 571) = 571 [pid 5141] <... mmap resumed>) = 0x7fa7fde00000 [pid 5140] memfd_create("syzkaller", 0) = 5 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 63.581374][ T5139] syz-executor638 (5139): drop_caches: 3 [ 63.593930][ T5143] syz-executor638 (5143): drop_caches: 3 [ 63.596954][ T5140] syz-executor638 (5140): drop_caches: 3 [ 63.609573][ T5141] syz-executor638 (5141): drop_caches: 3 [pid 5142] <... write resumed>) = 2097152 [pid 5142] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5143] <... sendfile resumed> => [693], 571) = 571 [pid 5142] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5139] <... write resumed>) = 2097152 [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] memfd_create("syzkaller", 0 [pid 5142] close(5 [pid 5139] munmap(0x7fa7fde00000, 138412032 [pid 5143] <... memfd_create resumed>) = 5 [pid 5142] <... close resumed>) = 0 [pid 5141] <... write resumed>) = 2097152 [pid 5140] <... write resumed>) = 2097152 [pid 5139] <... munmap resumed>) = 0 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5141] munmap(0x7fa7fde00000, 138412032 [pid 5140] munmap(0x7fa7fde00000, 138412032 [pid 5139] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5143] <... mmap resumed>) = 0x7fa7fde00000 [pid 5142] <... openat resumed>) = 5 [pid 5140] <... munmap resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5142] exit_group(0 [pid 5141] <... munmap resumed>) = 0 [pid 5139] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] <... exit_group resumed>) = ? [pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5140] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] close(5 [pid 5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] +++ exited with 0 +++ [pid 5141] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5140] close(5 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [ 63.674534][ T5143] syz-executor638 (5143): drop_caches: 3 [pid 5141] close(5 [pid 5140] <... close resumed>) = 0 [pid 5139] <... close resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5144 ./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x555556ffb660, 24) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... close resumed>) = 0 [pid 5144] <... prctl resumed>) = 0 [pid 5143] <... write resumed>) = 2097152 [pid 5140] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5139] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5144] setpgid(0, 0 [pid 5143] munmap(0x7fa7fde00000, 138412032 [pid 5141] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5144] <... setpgid resumed>) = 0 [pid 5141] <... openat resumed>) = 5 [pid 5140] <... openat resumed>) = 5 [pid 5139] <... openat resumed>) = 5 [pid 5141] exit_group(0 [pid 5140] exit_group(0 [pid 5139] exit_group(0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... exit_group resumed>) = ? [pid 5140] <... exit_group resumed>) = ? [pid 5139] <... exit_group resumed>) = ? [pid 5144] <... openat resumed>) = 3 [pid 5143] <... munmap resumed>) = 0 [pid 5144] write(3, "1000", 4 [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5144] <... write resumed>) = 4 [pid 5143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5141] +++ exited with 0 +++ [pid 5140] +++ exited with 0 +++ [pid 5144] close(3 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5144] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5143] close(5 [pid 5139] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5145 attached [pid 5144] <... openat resumed>) = 3 [pid 5145] set_robust_list(0x555556ffb660, 24 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5145 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] <... prctl resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached [pid 5145] setpgid(0, 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] set_robust_list(0x555556ffb660, 24 [pid 5145] <... setpgid resumed>) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5146 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5147 attached [pid 5146] <... prctl resumed>) = 0 [pid 5147] set_robust_list(0x555556ffb660, 24 [pid 5146] setpgid(0, 0 [pid 5145] write(3, "1000", 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5147 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] <... setpgid resumed>) = 0 [pid 5145] <... write resumed>) = 4 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] close(3 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] <... prctl resumed>) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5145] <... close resumed>) = 0 [pid 5144] <... openat resumed>) = 4 [pid 5143] <... close resumed>) = 0 [pid 5147] setpgid(0, 0 [pid 5146] write(3, "1000", 4 [pid 5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5144] sendfile(4, 3, [122] [pid 5143] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5147] <... setpgid resumed>) = 0 [pid 5146] <... write resumed>) = 4 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] close(3) = 0 [pid 5145] <... openat resumed>) = 3 [pid 5143] <... openat resumed>) = 5 [pid 5147] <... openat resumed>) = 3 [pid 5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] write(3, "1000", 4 [pid 5146] <... openat resumed>) = 3 [pid 5145] <... openat resumed>) = 4 [pid 5143] exit_group(0 [pid 5147] <... write resumed>) = 4 [pid 5143] <... exit_group resumed>) = ? [pid 5147] close(3 [pid 5145] sendfile(4, 3, [122] [pid 5147] <... close resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5146] <... openat resumed>) = 4 [pid 5147] <... openat resumed>) = 4 [pid 5146] sendfile(4, 3, [122] [pid 5147] sendfile(4, 3, [122] [pid 5143] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5148 ./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x555556ffb660, 24) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5148] setpgid(0, 0) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5148] write(3, "1000", 4) = 4 [pid 5148] close(3) = 0 [pid 5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 63.824326][ T5145] syz-executor638 (5145): drop_caches: 3 [ 63.864746][ T5144] syz-executor638 (5144): drop_caches: 3 [ 63.875265][ T5146] syz-executor638 (5146): drop_caches: 3 [ 63.881246][ T5147] syz-executor638 (5147): drop_caches: 3 [ 63.899271][ T5148] syz-executor638 (5148): drop_caches: 3 [pid 5148] sendfile(4, 3, [122] [pid 5145] <... sendfile resumed> => [693], 571) = 571 [pid 5145] memfd_create("syzkaller", 0) = 5 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5147] <... sendfile resumed> => [693], 571) = 571 [pid 5146] <... sendfile resumed> => [693], 571) = 571 [pid 5144] <... sendfile resumed> => [693], 571) = 571 [pid 5148] <... sendfile resumed> => [693], 571) = 571 [pid 5147] memfd_create("syzkaller", 0 [pid 5146] memfd_create("syzkaller", 0 [pid 5145] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5144] memfd_create("syzkaller", 0 [pid 5148] memfd_create("syzkaller", 0 [pid 5147] <... memfd_create resumed>) = 5 [pid 5146] <... memfd_create resumed>) = 5 [pid 5144] <... memfd_create resumed>) = 5 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5147] <... mmap resumed>) = 0x7fa7fde00000 [pid 5146] <... mmap resumed>) = 0x7fa7fde00000 [pid 5144] <... mmap resumed>) = 0x7fa7fde00000 [pid 5148] <... memfd_create resumed>) = 5 [pid 5145] <... write resumed>) = 2097152 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 63.930370][ T5145] syz-executor638 (5145): drop_caches: 3 [ 63.939583][ T5144] syz-executor638 (5144): drop_caches: 3 [ 63.959552][ T5146] syz-executor638 (5146): drop_caches: 3 [ 63.965773][ T5147] syz-executor638 (5147): drop_caches: 3 [ 63.971121][ T5148] syz-executor638 (5148): drop_caches: 3 [pid 5145] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5147] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5145] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5147] <... write resumed>) = 2097152 [pid 5145] close(5 [pid 5144] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5147] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5147] close(5 [pid 5146] <... write resumed>) = 2097152 [pid 5146] munmap(0x7fa7fde00000, 138412032 [pid 5147] <... close resumed>) = 0 [pid 5147] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5145] <... close resumed>) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5145] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5146] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5147] <... openat resumed>) = 5 [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5145] <... openat resumed>) = 5 [pid 5147] exit_group(0 [pid 5145] exit_group(0 [pid 5148] <... write resumed>) = 2097152 [pid 5147] <... exit_group resumed>) = ? [pid 5146] close(5 [pid 5145] <... exit_group resumed>) = ? [pid 5144] <... write resumed>) = 2097152 [pid 5148] munmap(0x7fa7fde00000, 138412032 [pid 5145] +++ exited with 0 +++ [pid 5048] --- 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 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5149 [pid 5144] munmap(0x7fa7fde00000, 138412032./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x555556ffb660, 24) = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5147] +++ exited with 0 +++ [pid 5149] <... prctl resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5149] <... openat resumed>) = 3 [pid 5144] <... munmap resumed>) = 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] write(3, "1000", 4 [pid 5148] <... munmap resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5150 attached [pid 5149] <... write resumed>) = 4 [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5144] close(5 [pid 5149] close(3 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5150 [pid 5149] <... close resumed>) = 0 [pid 5150] set_robust_list(0x555556ffb660, 24 [pid 5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5149] <... openat resumed>) = 4 [pid 5150] <... prctl resumed>) = 0 [pid 5149] sendfile(4, 3, [122] [pid 5148] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5150] setpgid(0, 0) = 0 [pid 5148] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] close(5 [pid 5146] <... close resumed>) = 0 [pid 5148] <... close resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5146] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5148] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5150] write(3, "1000", 4 [pid 5148] <... openat resumed>) = 5 [pid 5146] <... openat resumed>) = 5 [pid 5144] <... close resumed>) = 0 [pid 5150] <... write resumed>) = 4 [pid 5150] close(3) = 0 [pid 5146] exit_group(0 [pid 5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5146] <... exit_group resumed>) = ? [pid 5144] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5148] exit_group(0) = ? [pid 5150] <... openat resumed>) = 3 [pid 5148] +++ exited with 0 +++ [pid 5144] <... openat resumed>) = 5 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5146] +++ exited with 0 +++ [pid 5144] exit_group(0 [pid 5150] <... openat resumed>) = 4 [pid 5144] <... exit_group resumed>) = ? [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5150] sendfile(4, 3, [122] [pid 5144] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5151 attached [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5151 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5152 attached [pid 5151] set_robust_list(0x555556ffb660, 24 [pid 5152] set_robust_list(0x555556ffb660, 24 [pid 5151] <... set_robust_list resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5152 ./strace-static-x86_64: Process 5153 attached [pid 5152] <... set_robust_list resumed>) = 0 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5153 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5151] setpgid(0, 0 [pid 5153] set_robust_list(0x555556ffb660, 24 [pid 5152] setpgid(0, 0 [pid 5151] <... setpgid resumed>) = 0 [pid 5153] <... set_robust_list resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... openat resumed>) = 3 [pid 5153] <... prctl resumed>) = 0 [pid 5151] write(3, "1000", 4 [pid 5153] setpgid(0, 0 [pid 5151] <... write resumed>) = 4 [pid 5153] <... setpgid resumed>) = 0 [pid 5151] close(3 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] <... close resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5153] write(3, "1000", 4 [pid 5152] <... setpgid resumed>) = 0 [pid 5153] <... write resumed>) = 4 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] <... openat resumed>) = 3 [pid 5153] close(3) = 0 [pid 5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5152] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5153] <... openat resumed>) = 3 [pid 5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5152] write(3, "1000", 4 [pid 5151] <... openat resumed>) = 4 [pid 5151] sendfile(4, 3, [122] [pid 5152] <... write resumed>) = 4 [pid 5153] <... openat resumed>) = 4 [pid 5152] close(3) = 0 [pid 5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5153] sendfile(4, 3, [122] [pid 5152] <... openat resumed>) = 3 [pid 5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 64.186801][ T5149] syz-executor638 (5149): drop_caches: 3 [ 64.189485][ T5150] syz-executor638 (5150): drop_caches: 3 [ 64.209814][ T5151] syz-executor638 (5151): drop_caches: 3 [ 64.210236][ T5152] syz-executor638 (5152): drop_caches: 3 [ 64.217924][ T5153] syz-executor638 (5153): drop_caches: 3 [pid 5152] sendfile(4, 3, [122] [pid 5149] <... sendfile resumed> => [693], 571) = 571 [pid 5150] <... sendfile resumed> => [693], 571) = 571 [pid 5150] memfd_create("syzkaller", 0) = 5 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5152] <... sendfile resumed> => [693], 571) = 571 [pid 5151] <... sendfile resumed> => [693], 571) = 571 [pid 5152] memfd_create("syzkaller", 0 [pid 5153] <... sendfile resumed> => [693], 571) = 571 [pid 5152] <... memfd_create resumed>) = 5 [pid 5151] memfd_create("syzkaller", 0 [pid 5150] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] memfd_create("syzkaller", 0 [pid 5153] memfd_create("syzkaller", 0 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5151] <... memfd_create resumed>) = 5 [pid 5149] <... memfd_create resumed>) = 5 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5152] <... mmap resumed>) = 0x7fa7fde00000 [pid 5149] <... mmap resumed>) = 0x7fa7fde00000 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5153] <... memfd_create resumed>) = 5 [pid 5151] <... mmap resumed>) = 0x7fa7fde00000 [ 64.264270][ T5150] syz-executor638 (5150): drop_caches: 3 [ 64.275482][ T5149] syz-executor638 (5149): drop_caches: 3 [ 64.284329][ T5152] syz-executor638 (5152): drop_caches: 3 [ 64.298911][ T5153] syz-executor638 (5153): drop_caches: 3 [ 64.305800][ T5151] syz-executor638 (5151): drop_caches: 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5152] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5150] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5150] close(5 [pid 5153] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5151] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... close resumed>) = 0 [pid 5149] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5153] <... write resumed>) = 2097152 [pid 5152] munmap(0x7fa7fde00000, 138412032 [pid 5150] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5153] munmap(0x7fa7fde00000, 138412032 [pid 5152] <... munmap resumed>) = 0 [pid 5151] <... write resumed>) = 2097152 [pid 5150] <... openat resumed>) = 5 [pid 5149] <... write resumed>) = 2097152 [pid 5151] munmap(0x7fa7fde00000, 138412032 [pid 5150] exit_group(0 [pid 5149] munmap(0x7fa7fde00000, 138412032 [pid 5150] <... exit_group resumed>) = ? [pid 5149] <... munmap resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5153] <... munmap resumed>) = 0 [pid 5152] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] close(5 [pid 5153] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5151] <... munmap resumed>) = 0 [pid 5150] +++ exited with 0 +++ [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5153] close(5 [pid 5151] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5149] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] <... close resumed>) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] close(5 [pid 5152] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5152] <... openat resumed>) = 5 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5153] <... close resumed>) = 0 [pid 5153] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] exit_group(0 [pid 5153] <... openat resumed>) = 5 [pid 5152] <... exit_group resumed>) = ? [pid 5153] exit_group(0) = ? ./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x555556ffb660, 24) = 0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5154 [pid 5154] setpgid(0, 0 [pid 5151] close(5 [pid 5154] <... setpgid resumed>) = 0 [pid 5153] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5154] <... openat resumed>) = 3 [pid 5152] +++ exited with 0 +++ [pid 5050] <... restart_syscall resumed>) = 0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] <... restart_syscall resumed>) = 0 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5154] sendfile(4, 3, [122] [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5155 ./strace-static-x86_64: Process 5156 attached ./strace-static-x86_64: Process 5155 attached [pid 5151] <... close resumed>) = 0 [pid 5149] <... close resumed>) = 0 [pid 5156] set_robust_list(0x555556ffb660, 24 [pid 5155] set_robust_list(0x555556ffb660, 24 [pid 5151] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5149] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5156 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5155] <... set_robust_list resumed>) = 0 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5156] setpgid(0, 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... openat resumed>) = 5 [pid 5149] <... openat resumed>) = 5 [pid 5156] <... setpgid resumed>) = 0 [pid 5155] <... prctl resumed>) = 0 [pid 5151] exit_group(0 [pid 5149] exit_group(0 [pid 5155] setpgid(0, 0 [pid 5151] <... exit_group resumed>) = ? [pid 5149] <... exit_group resumed>) = ? [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] <... setpgid resumed>) = 0 [pid 5151] +++ exited with 0 +++ [pid 5149] +++ exited with 0 +++ [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5156] <... openat resumed>) = 3 [pid 5155] <... openat resumed>) = 3 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5052] <... restart_syscall resumed>) = 0 [pid 5156] write(3, "1000", 4 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5156] <... write resumed>) = 4 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5156] close(3 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] <... close resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached [pid 5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5155] write(3, "1000", 4 [pid 5157] set_robust_list(0x555556ffb660, 24 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5157 [pid 5157] <... set_robust_list resumed>) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] <... openat resumed>) = 3 [pid 5155] <... write resumed>) = 4 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5157] <... prctl resumed>) = 0 [pid 5155] close(3 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5155] <... close resumed>) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 ./strace-static-x86_64: Process 5158 attached [pid 5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5158] set_robust_list(0x555556ffb660, 24 [pid 5157] setpgid(0, 0 [pid 5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5155] <... openat resumed>) = 4 [pid 5154] <... sendfile resumed> => [693], 571) = 571 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5158 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] <... setpgid resumed>) = 0 [pid 5156] <... openat resumed>) = 4 [pid 5155] sendfile(4, 3, [122] [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] memfd_create("syzkaller", 0 [pid 5158] <... prctl resumed>) = 0 [pid 5156] sendfile(4, 3, [122] [pid 5154] <... memfd_create resumed>) = 5 [pid 5158] setpgid(0, 0 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] <... setpgid resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] <... mmap resumed>) = 0x7fa7fde00000 [pid 5157] <... openat resumed>) = 3 [pid 5158] <... openat resumed>) = 3 [pid 5157] write(3, "1000", 4 [pid 5158] write(3, "1000", 4 [pid 5157] <... write resumed>) = 4 [pid 5158] <... write resumed>) = 4 [pid 5157] close(3 [pid 5158] close(3) = 0 [pid 5157] <... close resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5154] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5158] <... openat resumed>) = 3 [pid 5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5157] <... openat resumed>) = 3 [pid 5158] sendfile(4, 3, [122] [pid 5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 64.460801][ T5154] syz-executor638 (5154): drop_caches: 3 [ 64.485998][ T5154] syz-executor638 (5154): drop_caches: 3 [pid 5157] sendfile(4, 3, [122] [pid 5154] <... write resumed>) = 2097152 [pid 5154] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5154] close(5) = 0 [pid 5154] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5154] exit_group(0) = ? [pid 5154] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5159 attached [pid 5159] set_robust_list(0x555556ffb660, 24) = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5159 [pid 5159] close(3) = 0 [pid 5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 64.551530][ T5156] syz-executor638 (5156): drop_caches: 3 [ 64.558338][ T5155] syz-executor638 (5155): drop_caches: 3 [ 64.602157][ T5157] syz-executor638 (5157): drop_caches: 3 [ 64.620665][ T5158] syz-executor638 (5158): drop_caches: 3 [ 64.627241][ T5156] syz-executor638 (5156): drop_caches: 3 [ 64.645184][ T5159] syz-executor638 (5159): drop_caches: 3 [pid 5159] sendfile(4, 3, [122] [pid 5156] <... sendfile resumed> => [693], 571) = 571 [pid 5156] memfd_create("syzkaller", 0) = 5 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5155] <... sendfile resumed> => [693], 571) = 571 [pid 5157] <... sendfile resumed> => [693], 571) = 571 [pid 5155] memfd_create("syzkaller", 0) = 5 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5157] memfd_create("syzkaller", 0 [pid 5159] <... sendfile resumed> => [693], 571) = 571 [pid 5157] <... memfd_create resumed>) = 5 [pid 5155] <... mmap resumed>) = 0x7fa7fde00000 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 64.662724][ T5155] syz-executor638 (5155): drop_caches: 3 [ 64.680597][ T5157] syz-executor638 (5157): drop_caches: 3 [ 64.701756][ T5159] syz-executor638 (5159): drop_caches: 3 [pid 5159] memfd_create("syzkaller", 0 [pid 5158] <... sendfile resumed> => [693], 571) = 571 [pid 5159] <... memfd_create resumed>) = 5 [pid 5157] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5156] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5155] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5159] <... mmap resumed>) = 0x7fa7fde00000 [pid 5158] <... memfd_create resumed>) = 5 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5156] <... write resumed>) = 2097152 [pid 5156] munmap(0x7fa7fde00000, 138412032 [pid 5157] <... write resumed>) = 2097152 [ 64.717080][ T5158] syz-executor638 (5158): drop_caches: 3 [pid 5159] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5156] <... munmap resumed>) = 0 [pid 5155] <... write resumed>) = 2097152 [pid 5155] munmap(0x7fa7fde00000, 138412032 [pid 5158] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5157] munmap(0x7fa7fde00000, 138412032 [pid 5156] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5156] close(5 [pid 5157] <... munmap resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5158] <... write resumed>) = 2097152 [pid 5157] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] <... close resumed>) = 0 [pid 5155] <... munmap resumed>) = 0 [pid 5158] munmap(0x7fa7fde00000, 138412032 [pid 5157] close(5 [pid 5159] <... write resumed>) = 2097152 [pid 5158] <... munmap resumed>) = 0 [pid 5156] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5155] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5158] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5158] close(5 [pid 5155] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] <... openat resumed>) = 5 [pid 5159] munmap(0x7fa7fde00000, 138412032 [pid 5155] close(5 [pid 5156] exit_group(0 [pid 5159] <... munmap resumed>) = 0 [pid 5159] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5159] close(5 [pid 5156] <... exit_group resumed>) = ? [pid 5155] <... close resumed>) = 0 [pid 5155] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5155] exit_group(0) = ? [pid 5157] <... close resumed>) = 0 [pid 5156] +++ exited with 0 +++ [pid 5157] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5157] <... openat resumed>) = 5 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5157] exit_group(0./strace-static-x86_64: Process 5160 attached [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5160 [pid 5160] set_robust_list(0x555556ffb660, 24) = 0 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5160] setpgid(0, 0) = 0 [pid 5157] <... exit_group resumed>) = ? [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5160] write(3, "1000", 4) = 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 5157] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5155] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5160] sendfile(4, 3, [122] [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5050] <... restart_syscall resumed>) = 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5162 ./strace-static-x86_64: Process 5162 attached [pid 5161] set_robust_list(0x555556ffb660, 24 [pid 5159] <... close resumed>) = 0 [pid 5162] set_robust_list(0x555556ffb660, 24 [pid 5161] <... set_robust_list resumed>) = 0 [pid 5159] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5158] <... close resumed>) = 0 [pid 5162] <... set_robust_list resumed>) = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] <... openat resumed>) = 5 [pid 5158] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5161] <... prctl resumed>) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] setpgid(0, 0 [pid 5158] <... openat resumed>) = 5 [pid 5161] <... setpgid resumed>) = 0 [pid 5159] exit_group(0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] <... prctl resumed>) = 0 [pid 5161] <... openat resumed>) = 3 [pid 5159] <... exit_group resumed>) = ? [pid 5162] setpgid(0, 0 [pid 5158] exit_group(0 [pid 5162] <... setpgid resumed>) = 0 [pid 5159] +++ exited with 0 +++ [pid 5161] write(3, "1000", 4 [pid 5158] <... exit_group resumed>) = ? [pid 5051] --- 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 5161] <... write resumed>) = 4 [pid 5161] close(3) = 0 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5162] <... openat resumed>) = 3 [pid 5161] <... openat resumed>) = 3 [pid 5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5162] write(3, "1000", 4 [pid 5161] sendfile(4, 3, [122] [pid 5158] +++ exited with 0 +++ [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5162] <... write resumed>) = 4 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5163 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5164 [pid 5162] close(3) = 0 [pid 5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5162] sendfile(4, 3, [122]./strace-static-x86_64: Process 5164 attached ./strace-static-x86_64: Process 5163 attached [pid 5164] set_robust_list(0x555556ffb660, 24) = 0 [pid 5163] set_robust_list(0x555556ffb660, 24) = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] <... prctl resumed>) = 0 [pid 5163] <... prctl resumed>) = 0 [pid 5164] setpgid(0, 0 [pid 5163] setpgid(0, 0 [pid 5164] <... setpgid resumed>) = 0 [pid 5163] <... setpgid resumed>) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] <... openat resumed>) = 3 [pid 5164] write(3, "1000", 4 [pid 5163] write(3, "1000", 4 [pid 5164] <... write resumed>) = 4 [pid 5163] <... write resumed>) = 4 [pid 5164] close(3 [pid 5163] close(3 [pid 5164] <... close resumed>) = 0 [pid 5163] <... close resumed>) = 0 [pid 5160] <... sendfile resumed> => [693], 571) = 571 [pid 5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5164] <... openat resumed>) = 3 [pid 5163] <... openat resumed>) = 3 [pid 5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5160] memfd_create("syzkaller", 0 [pid 5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5164] <... openat resumed>) = 4 [pid 5160] <... memfd_create resumed>) = 5 [ 64.862311][ T5160] syz-executor638 (5160): drop_caches: 3 [ 64.894400][ T5160] syz-executor638 (5160): drop_caches: 3 [pid 5164] sendfile(4, 3, [122] [pid 5163] <... openat resumed>) = 4 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5163] sendfile(4, 3, [122] [pid 5160] <... mmap resumed>) = 0x7fa7fde00000 [ 64.913413][ T5161] syz-executor638 (5161): drop_caches: 3 [ 64.915536][ T5162] syz-executor638 (5162): drop_caches: 3 [pid 5161] <... sendfile resumed> => [693], 571) = 571 [pid 5161] memfd_create("syzkaller", 0) = 5 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 64.961058][ T5161] syz-executor638 (5161): drop_caches: 3 [ 64.977320][ T5164] syz-executor638 (5164): drop_caches: 3 [ 64.994448][ T5163] syz-executor638 (5163): drop_caches: 3 [pid 5160] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5160] <... write resumed>) = 2097152 [pid 5160] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5162] <... sendfile resumed> => [693], 571) = 571 [pid 5160] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5162] memfd_create("syzkaller", 0 [pid 5160] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5164] <... sendfile resumed> => [693], 571) = 571 [pid 5162] <... memfd_create resumed>) = 5 [pid 5160] close(5 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5164] memfd_create("syzkaller", 0 [pid 5162] <... mmap resumed>) = 0x7fa7fde00000 [pid 5164] <... memfd_create resumed>) = 5 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5160] <... close resumed>) = 0 [pid 5161] <... write resumed>) = 2097152 [pid 5161] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5163] <... sendfile resumed> => [693], 571) = 571 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5160] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5161] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5160] <... openat resumed>) = 5 [pid 5161] close(5 [pid 5163] memfd_create("syzkaller", 0 [pid 5160] exit_group(0 [pid 5163] <... memfd_create resumed>) = 5 [pid 5160] <... exit_group resumed>) = ? [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5162] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5160] +++ exited with 0 +++ [pid 5049] --- 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=7 /* 0.07 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5165 attached [pid 5165] set_robust_list(0x555556ffb660, 24) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5165 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3) = 0 [pid 5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 65.022697][ T5162] syz-executor638 (5162): drop_caches: 3 [ 65.045326][ T5164] syz-executor638 (5164): drop_caches: 3 [ 65.060293][ T5163] syz-executor638 (5163): drop_caches: 3 [pid 5165] sendfile(4, 3, [122] [pid 5161] <... close resumed>) = 0 [pid 5164] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5161] exit_group(0) = ? [pid 5162] <... write resumed>) = 2097152 [pid 5162] munmap(0x7fa7fde00000, 138412032 [pid 5161] +++ exited with 0 +++ [pid 5048] --- 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=9 /* 0.09 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5163] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... munmap resumed>) = 0 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5166 ./strace-static-x86_64: Process 5166 attached [pid 5164] <... write resumed>) = 2097152 [pid 5162] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5166] set_robust_list(0x555556ffb660, 24) = 0 [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 [pid 5164] munmap(0x7fa7fde00000, 138412032 [pid 5163] <... write resumed>) = 2097152 [pid 5162] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] <... openat resumed>) = 3 [pid 5162] close(5 [pid 5163] munmap(0x7fa7fde00000, 138412032 [pid 5166] write(3, "1000", 4 [pid 5164] <... munmap resumed>) = 0 [pid 5162] <... close resumed>) = 0 [pid 5166] <... write resumed>) = 4 [pid 5163] <... munmap resumed>) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5166] close(3 [pid 5165] <... sendfile resumed> => [693], 571) = 571 [pid 5164] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5162] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5166] <... close resumed>) = 0 [pid 5165] memfd_create("syzkaller", 0 [pid 5164] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5163] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5162] <... openat resumed>) = 5 [pid 5165] <... memfd_create resumed>) = 5 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5164] close(5 [pid 5163] close(5 [pid 5162] exit_group(0 [pid 5164] <... close resumed>) = 0 [pid 5166] <... openat resumed>) = 3 [pid 5165] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... exit_group resumed>) = ? [pid 5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5164] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5162] +++ exited with 0 +++ [pid 5166] <... openat resumed>) = 4 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5166] sendfile(4, 3, [122] [ 65.144272][ T5165] syz-executor638 (5165): drop_caches: 3 [ 65.178243][ T5165] syz-executor638 (5165): drop_caches: 3 [pid 5050] restart_syscall(<... resuming interrupted clone ...> [pid 5164] <... openat resumed>) = 5 [pid 5163] <... close resumed>) = 0 [pid 5164] exit_group(0) = ? [pid 5163] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5050] <... restart_syscall resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5164] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5167 [pid 5163] <... openat resumed>) = 5 ./strace-static-x86_64: Process 5167 attached [pid 5165] <... write resumed>) = 2097152 [pid 5163] exit_group(0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5167] set_robust_list(0x555556ffb660, 24 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] <... set_robust_list resumed>) = 0 [pid 5165] munmap(0x7fa7fde00000, 138412032 [pid 5163] <... exit_group resumed>) = ? [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5168 attached [pid 5168] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5168 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] setpgid(0, 0) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5168] write(3, "1000", 4) = 4 [pid 5168] close(3) = 0 [pid 5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5168] sendfile(4, 3, [122] [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] <... munmap resumed>) = 0 [pid 5163] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x555556ffb660, 24) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5169 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3) = 0 [pid 5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5167] <... prctl resumed>) = 0 [pid 5167] setpgid(0, 0 [pid 5165] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5167] <... setpgid resumed>) = 0 [pid 5165] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] close(5 [pid 5167] <... openat resumed>) = 3 [pid 5165] <... close resumed>) = 0 [pid 5169] <... openat resumed>) = 3 [pid 5167] write(3, "1000", 4 [pid 5165] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5167] <... write resumed>) = 4 [pid 5165] <... openat resumed>) = 5 [pid 5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5167] close(3 [pid 5165] exit_group(0 [pid 5169] <... openat resumed>) = 4 [pid 5169] sendfile(4, 3, [122] [pid 5165] <... exit_group resumed>) = ? [pid 5165] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5167] <... close resumed>) = 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] <... openat resumed>) = 4 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5170 ./strace-static-x86_64: Process 5170 attached [pid 5167] sendfile(4, 3, [122] [pid 5170] set_robust_list(0x555556ffb660, 24) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 65.244383][ T5166] syz-executor638 (5166): drop_caches: 3 [ 65.278083][ T5168] syz-executor638 (5168): drop_caches: 3 [pid 5170] setpgid(0, 0) = 0 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5166] <... sendfile resumed> => [693], 571) = 571 [pid 5170] write(3, "1000", 4) = 4 [pid 5170] close(3) = 0 [pid 5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5170] sendfile(4, 3, [122] [pid 5166] memfd_create("syzkaller", 0) = 5 [ 65.304688][ T5166] syz-executor638 (5166): drop_caches: 3 [ 65.339321][ T5169] syz-executor638 (5169): drop_caches: 3 [ 65.348591][ T5167] syz-executor638 (5167): drop_caches: 3 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5166] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5168] <... sendfile resumed> => [693], 571) = 571 [pid 5168] memfd_create("syzkaller", 0) = 5 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5169] <... sendfile resumed> => [693], 571) = 571 [pid 5168] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5166] <... write resumed>) = 2097152 [ 65.363265][ T5168] syz-executor638 (5168): drop_caches: 3 [ 65.366673][ T5170] syz-executor638 (5170): drop_caches: 3 [ 65.399476][ T5169] syz-executor638 (5169): drop_caches: 3 [pid 5166] munmap(0x7fa7fde00000, 138412032 [pid 5169] memfd_create("syzkaller", 0 [pid 5166] <... munmap resumed>) = 0 [pid 5169] <... memfd_create resumed>) = 5 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5166] close(5 [pid 5170] <... sendfile resumed> => [693], 571) = 571 [pid 5168] <... write resumed>) = 2097152 [pid 5166] <... close resumed>) = 0 [pid 5167] <... sendfile resumed> => [693], 571) = 571 [pid 5166] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5170] memfd_create("syzkaller", 0) = 5 [pid 5168] munmap(0x7fa7fde00000, 138412032 [pid 5167] memfd_create("syzkaller", 0 [pid 5166] exit_group(0 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5168] <... munmap resumed>) = 0 [pid 5170] <... mmap resumed>) = 0x7fa7fde00000 [pid 5167] <... memfd_create resumed>) = 5 [pid 5166] <... exit_group resumed>) = ? [pid 5168] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5166] +++ exited with 0 +++ [pid 5169] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5168] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] <... mmap resumed>) = 0x7fa7fde00000 [pid 5168] close(5 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 65.433967][ T5170] syz-executor638 (5170): drop_caches: 3 [ 65.443304][ T5167] syz-executor638 (5167): drop_caches: 3 [pid 5170] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5168] <... close resumed>) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5171 attached [pid 5168] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5171] set_robust_list(0x555556ffb660, 24 [pid 5168] <... openat resumed>) = 5 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5171 [pid 5171] <... set_robust_list resumed>) = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5168] exit_group(0 [pid 5171] close(3 [pid 5168] <... exit_group resumed>) = ? [pid 5171] <... close resumed>) = 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, [122] [pid 5170] <... write resumed>) = 2097152 [pid 5169] munmap(0x7fa7fde00000, 138412032 [pid 5168] +++ exited with 0 +++ [pid 5167] <... write resumed>) = 2097152 [pid 5167] munmap(0x7fa7fde00000, 138412032 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5169] <... munmap resumed>) = 0 [pid 5170] munmap(0x7fa7fde00000, 138412032 [pid 5169] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5167] <... munmap resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5172 attached [pid 5172] set_robust_list(0x555556ffb660, 24 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5172 [pid 5172] <... set_robust_list resumed>) = 0 [pid 5170] <... munmap resumed>) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5169] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5167] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5172] <... prctl resumed>) = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5169] close(5 [pid 5167] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5172] setpgid(0, 0) = 0 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5172] write(3, "1000", 4 [pid 5170] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5169] <... close resumed>) = 0 [pid 5167] close(5 [pid 5172] <... write resumed>) = 4 [pid 5170] close(5 [pid 5172] close(3) = 0 [pid 5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5169] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5167] <... close resumed>) = 0 [pid 5172] sendfile(4, 3, [122] [pid 5170] <... close resumed>) = 0 [pid 5169] <... openat resumed>) = 5 [pid 5170] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5169] exit_group(0 [pid 5167] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5169] <... exit_group resumed>) = ? [pid 5167] <... openat resumed>) = 5 [pid 5170] <... openat resumed>) = 5 [pid 5169] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5167] exit_group(0 [pid 5170] exit_group(0 [pid 5167] <... exit_group resumed>) = ? [pid 5051] <... restart_syscall resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] <... exit_group resumed>) = ? [pid 5167] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5173 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached [pid 5170] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5173] set_robust_list(0x555556ffb660, 24 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5173] <... set_robust_list resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5174 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5175 ./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x555556ffb660, 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 5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5174] sendfile(4, 3, [122]./strace-static-x86_64: Process 5175 attached [pid 5173] <... prctl resumed>) = 0 [pid 5175] set_robust_list(0x555556ffb660, 24 [pid 5173] setpgid(0, 0 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5173] <... setpgid resumed>) = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] <... prctl resumed>) = 0 [pid 5175] setpgid(0, 0 [pid 5173] <... openat resumed>) = 3 [pid 5175] <... setpgid resumed>) = 0 [pid 5173] write(3, "1000", 4 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5173] <... write resumed>) = 4 [pid 5175] <... openat resumed>) = 3 [pid 5173] close(3 [pid 5175] write(3, "1000", 4 [pid 5173] <... close resumed>) = 0 [pid 5175] <... write resumed>) = 4 [pid 5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5175] close(3) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5175] <... openat resumed>) = 3 [pid 5173] sendfile(4, 3, [122] [pid 5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 65.563127][ T5171] syz-executor638 (5171): drop_caches: 3 [pid 5175] sendfile(4, 3, [122] [pid 5171] <... sendfile resumed> => [693], 571) = 571 [pid 5171] memfd_create("syzkaller", 0) = 5 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 65.638551][ T5173] syz-executor638 (5173): drop_caches: 3 [ 65.646299][ T5171] syz-executor638 (5171): drop_caches: 3 [ 65.646322][ T5174] syz-executor638 (5174): drop_caches: 3 [ 65.655237][ T5175] syz-executor638 (5175): drop_caches: 3 [ 65.658452][ T5172] syz-executor638 (5172): drop_caches: 3 [pid 5171] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5173] <... sendfile resumed> => [693], 571) = 571 [pid 5171] <... write resumed>) = 2097152 [pid 5174] <... sendfile resumed> => [693], 571) = 571 [pid 5175] memfd_create("syzkaller", 0 [pid 5173] memfd_create("syzkaller", 0 [pid 5172] <... sendfile resumed> => [693], 571) = 571 [pid 5171] munmap(0x7fa7fde00000, 138412032 [pid 5172] memfd_create("syzkaller", 0 [pid 5175] <... memfd_create resumed>) = 5 [pid 5173] <... memfd_create resumed>) = 5 [pid 5172] <... memfd_create resumed>) = 5 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5174] memfd_create("syzkaller", 0 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5175] <... mmap resumed>) = 0x7fa7fde00000 [pid 5174] <... memfd_create resumed>) = 5 [pid 5171] <... munmap resumed>) = 0 [pid 5171] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5171] close(5 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 65.725831][ T5173] syz-executor638 (5173): drop_caches: 3 [ 65.748579][ T5175] syz-executor638 (5175): drop_caches: 3 [ 65.752102][ T5174] syz-executor638 (5174): drop_caches: 3 [ 65.757663][ T5172] syz-executor638 (5172): drop_caches: 3 [pid 5172] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5171] <... close resumed>) = 0 [pid 5173] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5171] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5175] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5172] <... write resumed>) = 2097152 [pid 5171] exit_group(0) = ? [pid 5171] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5172] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5175] <... write resumed>) = 2097152 [pid 5174] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5173] <... write resumed>) = 2097152 [pid 5172] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5175] munmap(0x7fa7fde00000, 138412032 [pid 5172] close(5 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5176 attached [pid 5176] set_robust_list(0x555556ffb660, 24 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5176 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5176] setpgid(0, 0) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] <... munmap resumed>) = 0 [pid 5173] munmap(0x7fa7fde00000, 138412032 [pid 5176] <... openat resumed>) = 3 [pid 5175] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5173] <... munmap resumed>) = 0 [pid 5172] <... close resumed>) = 0 [pid 5176] write(3, "1000", 4 [pid 5175] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... write resumed>) = 4 [pid 5175] close(5 [pid 5176] close(3 [pid 5172] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5176] <... close resumed>) = 0 [pid 5172] <... openat resumed>) = 5 [pid 5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5172] exit_group(0 [pid 5176] <... openat resumed>) = 3 [pid 5172] <... exit_group resumed>) = ? [pid 5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5176] sendfile(4, 3, [122] [pid 5174] <... write resumed>) = 2097152 [pid 5173] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5172] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5174] munmap(0x7fa7fde00000, 138412032 [pid 5173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5174] <... munmap resumed>) = 0 [pid 5173] close(5 [pid 5175] <... close resumed>) = 0 [pid 5177] set_robust_list(0x555556ffb660, 24) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0 [pid 5174] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5177] <... setpgid resumed>) = 0 [pid 5174] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] close(5 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5175] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5175] <... openat resumed>) = 5 [pid 5177] <... openat resumed>) = 4 [pid 5175] exit_group(0 [pid 5174] <... close resumed>) = 0 [pid 5175] <... exit_group resumed>) = ? [pid 5177] sendfile(4, 3, [122] [pid 5173] <... close resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5174] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5173] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5049] --- 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=8 /* 0.08 s */} --- [pid 5173] <... openat resumed>) = 5 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5174] <... openat resumed>) = 5 [pid 5173] exit_group(0) = ? [pid 5049] <... restart_syscall resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5174] exit_group(0 [pid 5173] +++ exited with 0 +++ [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5174] <... exit_group resumed>) = ? [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5178 ./strace-static-x86_64: Process 5178 attached [pid 5174] +++ exited with 0 +++ [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] set_robust_list(0x555556ffb660, 24 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- ./strace-static-x86_64: Process 5179 attached [pid 5178] <... set_robust_list resumed>) = 0 [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5179 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x555556ffb660, 24) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5180 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5180] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5180] sendfile(4, 3, [122] [pid 5179] set_robust_list(0x555556ffb660, 24 [pid 5178] <... prctl resumed>) = 0 [pid 5179] <... set_robust_list resumed>) = 0 [pid 5178] setpgid(0, 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] <... setpgid resumed>) = 0 [pid 5179] <... prctl resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] setpgid(0, 0 [pid 5178] <... openat resumed>) = 3 [pid 5179] <... setpgid resumed>) = 0 [pid 5178] write(3, "1000", 4 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] <... write resumed>) = 4 [pid 5179] <... openat resumed>) = 3 [pid 5178] close(3 [pid 5179] write(3, "1000", 4 [pid 5178] <... close resumed>) = 0 [pid 5179] <... write resumed>) = 4 [pid 5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] close(3 [pid 5178] <... openat resumed>) = 3 [pid 5179] <... close resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5179] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5178] <... openat resumed>) = 4 [pid 5179] <... openat resumed>) = 3 [pid 5178] sendfile(4, 3, [122] [pid 5179] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 65.924030][ T5177] syz-executor638 (5177): drop_caches: 3 [ 65.945896][ T5176] syz-executor638 (5176): drop_caches: 3 [pid 5179] sendfile(4, 3, [122] [pid 5177] <... sendfile resumed> => [693], 571) = 571 [pid 5177] memfd_create("syzkaller", 0) = 5 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 65.982815][ T5178] syz-executor638 (5178): drop_caches: 3 [ 66.000607][ T5180] syz-executor638 (5180): drop_caches: 3 [ 66.002622][ T5177] syz-executor638 (5177): drop_caches: 3 [ 66.015623][ T5179] syz-executor638 (5179): drop_caches: 3 [pid 5176] <... sendfile resumed> => [693], 571) = 571 [pid 5177] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] memfd_create("syzkaller", 0 [pid 5180] <... sendfile resumed> => [693], 571) = 571 [pid 5178] <... sendfile resumed> => [693], 571) = 571 [pid 5177] <... write resumed>) = 2097152 [pid 5179] <... sendfile resumed> => [693], 571) = 571 [pid 5176] <... memfd_create resumed>) = 5 [pid 5180] memfd_create("syzkaller", 0 [pid 5178] memfd_create("syzkaller", 0 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5179] memfd_create("syzkaller", 0 [pid 5178] <... memfd_create resumed>) = 5 [pid 5179] <... memfd_create resumed>) = 5 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] munmap(0x7fa7fde00000, 138412032 [pid 5178] <... mmap resumed>) = 0x7fa7fde00000 [pid 5180] <... memfd_create resumed>) = 5 [pid 5177] <... munmap resumed>) = 0 [pid 5179] <... mmap resumed>) = 0x7fa7fde00000 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5177] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5177] close(5 [pid 5179] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5177] <... close resumed>) = 0 [pid 5176] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5177] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [ 66.055625][ T5176] syz-executor638 (5176): drop_caches: 3 [ 66.070365][ T5180] syz-executor638 (5180): drop_caches: 3 [ 66.076346][ T5178] syz-executor638 (5178): drop_caches: 3 [ 66.088288][ T5179] syz-executor638 (5179): drop_caches: 3 [pid 5177] exit_group(0) = ? [pid 5178] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5177] +++ exited with 0 +++ [pid 5180] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] --- 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 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5179] <... write resumed>) = 2097152 [pid 5176] <... write resumed>) = 2097152 [pid 5181] set_robust_list(0x555556ffb660, 24) = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] munmap(0x7fa7fde00000, 138412032 [pid 5181] <... openat resumed>) = 3 [pid 5181] write(3, "1000", 4 [pid 5180] <... write resumed>) = 2097152 [pid 5179] <... munmap resumed>) = 0 [pid 5178] <... write resumed>) = 2097152 [pid 5176] munmap(0x7fa7fde00000, 138412032 [pid 5181] <... write resumed>) = 4 [pid 5180] munmap(0x7fa7fde00000, 138412032 [pid 5179] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5178] munmap(0x7fa7fde00000, 138412032 [pid 5181] close(3 [pid 5180] <... munmap resumed>) = 0 [pid 5179] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] <... munmap resumed>) = 0 [pid 5181] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5180] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5179] close(5 [pid 5181] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5180] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] <... munmap resumed>) = 0 [pid 5176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5180] close(5 [pid 5181] <... openat resumed>) = 3 [pid 5178] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5176] close(5 [pid 5181] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5181] sendfile(4, 3, [122] [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] close(5) = 0 [pid 5178] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5178] exit_group(0) = ? [pid 5180] <... close resumed>) = 0 [pid 5179] <... close resumed>) = 0 [pid 5180] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5180] exit_group(0) = ? [pid 5178] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5182 ./strace-static-x86_64: Process 5182 attached [pid 5182] set_robust_list(0x555556ffb660, 24) = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5182] setpgid(0, 0 [pid 5180] +++ exited with 0 +++ [pid 5182] <... setpgid resumed>) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5179] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5182] write(3, "1000", 4 [pid 5176] <... close resumed>) = 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] <... write resumed>) = 4 [pid 5179] <... openat resumed>) = 5 [pid 5176] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5179] exit_group(0 [pid 5182] close(3 [pid 5176] exit_group(0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] <... close resumed>) = 0 [pid 5179] <... exit_group resumed>) = ? [pid 5176] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5183 attached [pid 5182] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5179] +++ exited with 0 +++ [pid 5176] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5182] <... openat resumed>) = 3 [pid 5183] set_robust_list(0x555556ffb660, 24 [pid 5182] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5183] <... set_robust_list resumed>) = 0 [pid 5182] sendfile(4, 3, [122] [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5183 ./strace-static-x86_64: Process 5184 attached [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5184] set_robust_list(0x555556ffb660, 24) = 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5184] setpgid(0, 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5184 ./strace-static-x86_64: Process 5185 attached [pid 5184] <... setpgid resumed>) = 0 [pid 5185] set_robust_list(0x555556ffb660, 24 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5185 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5184] <... openat resumed>) = 3 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] <... prctl resumed>) = 0 [pid 5185] <... prctl resumed>) = 0 [pid 5184] write(3, "1000", 4 [pid 5185] setpgid(0, 0 [pid 5184] <... write resumed>) = 4 [pid 5183] setpgid(0, 0 [pid 5185] <... setpgid resumed>) = 0 [pid 5184] close(3 [pid 5183] <... setpgid resumed>) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] <... close resumed>) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5184] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] <... openat resumed>) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5183] <... openat resumed>) = 3 [pid 5185] close(3 [pid 5183] write(3, "1000", 4 [pid 5185] <... close resumed>) = 0 [pid 5184] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5183] <... write resumed>) = 4 [pid 5185] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5183] close(3 [pid 5184] <... openat resumed>) = 4 [pid 5183] <... close resumed>) = 0 [pid 5184] sendfile(4, 3, [122] [pid 5183] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5185] <... openat resumed>) = 3 [pid 5183] <... openat resumed>) = 3 [pid 5183] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5185] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5185] sendfile(4, 3, [122] [pid 5183] <... openat resumed>) = 4 [ 66.230574][ T5181] syz-executor638 (5181): drop_caches: 3 [pid 5183] sendfile(4, 3, [122] [pid 5181] <... sendfile resumed> => [693], 571) = 571 [ 66.289248][ T5184] syz-executor638 (5184): drop_caches: 3 [ 66.300914][ T5181] syz-executor638 (5181): drop_caches: 3 [pid 5181] memfd_create("syzkaller", 0) = 5 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5184] <... sendfile resumed> => [693], 571) = 571 [pid 5184] memfd_create("syzkaller", 0) = 5 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 66.331076][ T5182] syz-executor638 (5182): drop_caches: 3 [ 66.337341][ T5183] syz-executor638 (5183): drop_caches: 3 [ 66.337833][ T5184] syz-executor638 (5184): drop_caches: 3 [ 66.344126][ T5185] syz-executor638 (5185): drop_caches: 3 [pid 5181] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5184] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5181] <... write resumed>) = 2097152 [pid 5181] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5184] <... write resumed>) = 2097152 [pid 5183] <... sendfile resumed> => [693], 571) = 571 [pid 5182] <... sendfile resumed> => [693], 571) = 571 [pid 5181] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5184] munmap(0x7fa7fde00000, 138412032 [pid 5181] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5184] <... munmap resumed>) = 0 [pid 5181] close(5 [pid 5182] memfd_create("syzkaller", 0 [pid 5183] memfd_create("syzkaller", 0 [pid 5185] <... sendfile resumed> => [693], 571) = 571 [pid 5184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5183] <... memfd_create resumed>) = 5 [pid 5182] <... memfd_create resumed>) = 5 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5183] <... mmap resumed>) = 0x7fa7fde00000 [pid 5184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5184] close(5 [pid 5182] <... mmap resumed>) = 0x7fa7fde00000 [pid 5185] memfd_create("syzkaller", 0) = 5 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5181] <... close resumed>) = 0 [pid 5181] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5185] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... close resumed>) = 0 [pid 5183] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [ 66.412265][ T5182] syz-executor638 (5182): drop_caches: 3 [ 66.425658][ T5183] syz-executor638 (5183): drop_caches: 3 [ 66.434252][ T5185] syz-executor638 (5185): drop_caches: 3 [pid 5182] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5181] exit_group(0 [pid 5184] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5181] <... exit_group resumed>) = ? [pid 5184] <... openat resumed>) = 5 [pid 5184] exit_group(0) = ? [pid 5184] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5186 ./strace-static-x86_64: Process 5186 attached [pid 5181] +++ exited with 0 +++ [pid 5186] set_robust_list(0x555556ffb660, 24 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5186] <... set_robust_list resumed>) = 0 [pid 5185] <... write resumed>) = 2097152 [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5186] <... prctl resumed>) = 0 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5186] setpgid(0, 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5187 ./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x555556ffb660, 24) = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] <... setpgid resumed>) = 0 [pid 5187] <... prctl resumed>) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5186] <... openat resumed>) = 3 [pid 5187] <... openat resumed>) = 3 [pid 5187] write(3, "1000", 4 [pid 5186] write(3, "1000", 4 [pid 5187] <... write resumed>) = 4 [pid 5186] <... write resumed>) = 4 [pid 5187] close(3 [pid 5186] close(3 [pid 5187] <... close resumed>) = 0 [pid 5186] <... close resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5186] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5185] munmap(0x7fa7fde00000, 138412032 [pid 5187] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5186] <... openat resumed>) = 3 [pid 5187] <... openat resumed>) = 4 [pid 5186] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5187] sendfile(4, 3, [122] [pid 5186] <... openat resumed>) = 4 [pid 5185] <... munmap resumed>) = 0 [pid 5183] <... write resumed>) = 2097152 [pid 5186] sendfile(4, 3, [122] [pid 5183] munmap(0x7fa7fde00000, 138412032 [pid 5182] <... write resumed>) = 2097152 [pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5183] <... munmap resumed>) = 0 [pid 5185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5185] close(5 [pid 5183] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5182] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5183] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5183] close(5 [pid 5182] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] close(5) = 0 [pid 5185] <... close resumed>) = 0 [pid 5183] <... close resumed>) = 0 [pid 5183] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5183] exit_group(0) = ? [pid 5183] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5185] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000./strace-static-x86_64: Process 5188 attached [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5188 [pid 5182] <... openat resumed>) = 5 [pid 5188] set_robust_list(0x555556ffb660, 24) = 0 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5185] <... openat resumed>) = 5 [pid 5182] exit_group(0 [pid 5188] <... prctl resumed>) = 0 [pid 5188] setpgid(0, 0) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5188] write(3, "1000", 4) = 4 [pid 5188] close(3) = 0 [pid 5188] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5188] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5188] sendfile(4, 3, [122] [pid 5185] exit_group(0 [pid 5182] <... exit_group resumed>) = ? [pid 5185] <... exit_group resumed>) = ? [pid 5182] +++ exited with 0 +++ [pid 5185] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5189 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5190 ./strace-static-x86_64: Process 5190 attached [pid 5189] set_robust_list(0x555556ffb660, 24 [pid 5187] <... sendfile resumed> => [693], 571) = 571 [pid 5190] set_robust_list(0x555556ffb660, 24 [pid 5189] <... set_robust_list resumed>) = 0 [pid 5187] memfd_create("syzkaller", 0 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5189] <... prctl resumed>) = 0 [pid 5190] <... prctl resumed>) = 0 [pid 5189] setpgid(0, 0 [pid 5190] setpgid(0, 0 [pid 5189] <... setpgid resumed>) = 0 [pid 5190] <... setpgid resumed>) = 0 [pid 5187] <... memfd_create resumed>) = 5 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] write(3, "1000", 4 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5189] <... write resumed>) = 4 [pid 5189] close(3 [pid 5187] <... mmap resumed>) = 0x7fa7fde00000 [pid 5189] <... close resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [ 66.589616][ T5187] syz-executor638 (5187): drop_caches: 3 [ 66.591766][ T5186] syz-executor638 (5186): drop_caches: 3 [ 66.625714][ T5187] syz-executor638 (5187): drop_caches: 3 [pid 5190] <... openat resumed>) = 3 [pid 5189] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5187] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5186] <... sendfile resumed> => [693], 571) = 571 [pid 5190] write(3, "1000", 4 [pid 5189] <... openat resumed>) = 4 [pid 5190] <... write resumed>) = 4 [pid 5189] sendfile(4, 3, [122] [pid 5190] close(3 [pid 5187] <... write resumed>) = 2097152 [pid 5190] <... close resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5187] munmap(0x7fa7fde00000, 138412032 [pid 5190] <... openat resumed>) = 3 [pid 5190] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5190] sendfile(4, 3, [122] [pid 5187] <... munmap resumed>) = 0 [pid 5186] memfd_create("syzkaller", 0 [ 66.657599][ T5186] syz-executor638 (5186): drop_caches: 3 [ 66.660912][ T5188] syz-executor638 (5188): drop_caches: 3 [pid 5187] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5186] <... memfd_create resumed>) = 5 [pid 5187] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5187] close(5 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5188] <... sendfile resumed> => [693], 571) = 571 [pid 5187] <... close resumed>) = 0 [pid 5186] <... mmap resumed>) = 0x7fa7fde00000 [pid 5188] memfd_create("syzkaller", 0 [pid 5187] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5188] <... memfd_create resumed>) = 5 [pid 5187] <... openat resumed>) = 5 [pid 5186] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 66.711054][ T5188] syz-executor638 (5188): drop_caches: 3 [ 66.716685][ T5189] syz-executor638 (5189): drop_caches: 3 [ 66.725959][ T5190] syz-executor638 (5190): drop_caches: 3 [pid 5187] exit_group(0) = ? [pid 5187] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5190] <... sendfile resumed> => [693], 571) = 571 [pid 5188] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5186] <... write resumed>) = 2097152 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5190] memfd_create("syzkaller", 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5191 [pid 5190] <... memfd_create resumed>) = 5 ./strace-static-x86_64: Process 5191 attached [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5189] <... sendfile resumed> => [693], 571) = 571 [pid 5188] <... write resumed>) = 2097152 [pid 5186] munmap(0x7fa7fde00000, 138412032 [pid 5191] set_robust_list(0x555556ffb660, 24 [pid 5189] memfd_create("syzkaller", 0 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5190] <... mmap resumed>) = 0x7fa7fde00000 [pid 5189] <... memfd_create resumed>) = 5 [pid 5188] munmap(0x7fa7fde00000, 138412032 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5186] <... munmap resumed>) = 0 [pid 5191] <... prctl resumed>) = 0 [pid 5189] <... mmap resumed>) = 0x7fa7fde00000 [pid 5191] setpgid(0, 0) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 66.764386][ T5190] syz-executor638 (5190): drop_caches: 3 [ 66.781297][ T5189] syz-executor638 (5189): drop_caches: 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5188] <... munmap resumed>) = 0 [pid 5186] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5188] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5186] close(5 [pid 5191] close(3) = 0 [pid 5191] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5191] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5191] sendfile(4, 3, [122] [pid 5188] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5188] close(5 [pid 5189] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5190] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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 5186] <... close resumed>) = 0 [pid 5188] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5188] exit_group(0 [pid 5186] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5188] <... exit_group resumed>) = ? [pid 5186] <... openat resumed>) = 5 [pid 5186] exit_group(0) = ? [pid 5188] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5192 attached [pid 5190] <... write resumed>) = 2097152 [pid 5189] <... write resumed>) = 2097152 [pid 5186] +++ exited with 0 +++ [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5192 [pid 5192] set_robust_list(0x555556ffb660, 24 [pid 5190] munmap(0x7fa7fde00000, 138412032 [pid 5189] munmap(0x7fa7fde00000, 138412032 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5192] <... set_robust_list resumed>) = 0 [pid 5190] <... munmap resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] <... prctl resumed>) = 0 [pid 5192] setpgid(0, 0) = 0 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5192] write(3, "1000", 4) = 4 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5193 [pid 5192] close(3./strace-static-x86_64: Process 5193 attached ) = 0 [pid 5189] <... munmap resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5193] set_robust_list(0x555556ffb660, 24 [pid 5192] <... openat resumed>) = 3 [pid 5193] <... set_robust_list resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5189] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5192] <... openat resumed>) = 4 [pid 5189] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] sendfile(4, 3, [122] [pid 5189] close(5 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5190] close(5 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5193] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 66.857953][ T5191] syz-executor638 (5191): drop_caches: 3 [pid 5193] sendfile(4, 3, [122] [pid 5190] <... close resumed>) = 0 [pid 5189] <... close resumed>) = 0 [pid 5189] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5189] exit_group(0) = ? [pid 5190] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5189] +++ exited with 0 +++ [pid 5190] exit_group(0 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5190] <... exit_group resumed>) = ? [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5190] +++ exited with 0 +++ [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5194 ./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x555556ffb660, 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 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5195 [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, [122]./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x555556ffb660, 24) = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5195] setpgid(0, 0) = 0 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5195] write(3, "1000", 4) = 4 [pid 5195] close(3) = 0 [pid 5195] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5195] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 66.927998][ T5192] syz-executor638 (5192): drop_caches: 3 [ 66.930690][ T5191] syz-executor638 (5191): drop_caches: 3 [ 66.949348][ T5193] syz-executor638 (5193): drop_caches: 3 [pid 5195] sendfile(4, 3, [122] [pid 5191] <... sendfile resumed> => [693], 571) = 571 [pid 5191] memfd_create("syzkaller", 0) = 5 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 66.980418][ T5195] syz-executor638 (5195): drop_caches: 3 [pid 5191] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... sendfile resumed> => [693], 571) = 571 [pid 5192] memfd_create("syzkaller", 0) = 5 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5193] <... sendfile resumed> => [693], 571) = 571 [ 67.022503][ T5194] syz-executor638 (5194): drop_caches: 3 [ 67.029877][ T5192] syz-executor638 (5192): drop_caches: 3 [ 67.047118][ T5193] syz-executor638 (5193): drop_caches: 3 [ 67.065375][ T5194] syz-executor638 (5194): drop_caches: 3 [pid 5193] memfd_create("syzkaller", 0) = 5 [pid 5195] <... sendfile resumed> => [693], 571) = 571 [pid 5194] <... sendfile resumed> => [693], 571) = 571 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5191] <... write resumed>) = 2097152 [pid 5193] <... mmap resumed>) = 0x7fa7fde00000 [pid 5191] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5195] memfd_create("syzkaller", 0 [pid 5191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5194] memfd_create("syzkaller", 0 [pid 5191] close(5 [pid 5195] <... memfd_create resumed>) = 5 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5194] <... memfd_create resumed>) = 5 [ 67.067464][ T5195] syz-executor638 (5195): drop_caches: 3 [pid 5195] <... mmap resumed>) = 0x7fa7fde00000 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5192] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5194] <... mmap resumed>) = 0x7fa7fde00000 [pid 5193] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... close resumed>) = 0 [pid 5191] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5191] exit_group(0) = ? [pid 5191] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5192] <... write resumed>) = 2097152 ./strace-static-x86_64: Process 5196 attached [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5196 [pid 5196] set_robust_list(0x555556ffb660, 24) = 0 [pid 5195] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5194] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] munmap(0x7fa7fde00000, 138412032 [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) = 3 [pid 5196] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5195] <... write resumed>) = 2097152 [pid 5194] <... write resumed>) = 2097152 [pid 5193] <... write resumed>) = 2097152 [pid 5192] <... munmap resumed>) = 0 [pid 5196] sendfile(4, 3, [122] [pid 5195] munmap(0x7fa7fde00000, 138412032 [pid 5192] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5194] munmap(0x7fa7fde00000, 138412032 [pid 5193] munmap(0x7fa7fde00000, 138412032 [pid 5192] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] close(5 [pid 5194] <... munmap resumed>) = 0 [pid 5195] <... munmap resumed>) = 0 [pid 5193] <... munmap resumed>) = 0 [pid 5192] <... close resumed>) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5194] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5193] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5192] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5195] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5194] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] <... openat resumed>) = 5 [pid 5195] close(5 [pid 5194] close(5 [pid 5193] close(5 [pid 5192] exit_group(0) = ? [pid 5192] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x555556ffb660, 24 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5197 [pid 5197] <... set_robust_list resumed>) = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] setpgid(0, 0 [pid 5194] <... close resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5197] <... setpgid resumed>) = 0 [pid 5195] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5194] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5193] <... close resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5195] <... openat resumed>) = 5 [pid 5194] <... openat resumed>) = 5 [pid 5193] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5197] <... openat resumed>) = 3 [pid 5195] exit_group(0 [pid 5193] <... openat resumed>) = 5 [pid 5195] <... exit_group resumed>) = ? [pid 5194] exit_group(0) = ? [pid 5197] write(3, "1000", 4) = 4 [pid 5193] exit_group(0 [pid 5197] close(3 [pid 5193] <... exit_group resumed>) = ? [pid 5197] <... close resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5197] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5196] <... sendfile resumed> => [693], 571) = 571 [pid 5194] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5048] --- 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=8 /* 0.08 s */} --- [pid 5197] <... openat resumed>) = 4 [pid 5196] memfd_create("syzkaller", 0 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5196] <... memfd_create resumed>) = 5 [pid 5197] sendfile(4, 3, [122] [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] +++ exited with 0 +++ [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5196] <... mmap resumed>) = 0x7fa7fde00000 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5198 attached [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5198 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5199 ./strace-static-x86_64: Process 5199 attached [pid 5199] set_robust_list(0x555556ffb660, 24) = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5199] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5199] sendfile(4, 3, [122] [pid 5198] set_robust_list(0x555556ffb660, 24 [pid 5196] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5198] <... set_robust_list resumed>) = 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5198] <... prctl resumed>) = 0 [ 67.205567][ T5196] syz-executor638 (5196): drop_caches: 3 [ 67.236644][ T5196] syz-executor638 (5196): drop_caches: 3 [pid 5198] setpgid(0, 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5200 [pid 5198] <... setpgid resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x555556ffb660, 24 [pid 5198] <... openat resumed>) = 3 [pid 5196] <... write resumed>) = 2097152 [pid 5200] <... set_robust_list resumed>) = 0 [pid 5198] write(3, "1000", 4 [pid 5196] munmap(0x7fa7fde00000, 138412032 [pid 5198] <... write resumed>) = 4 [pid 5198] close(3 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5198] <... close resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5200] <... prctl resumed>) = 0 [pid 5198] <... openat resumed>) = 3 [pid 5200] setpgid(0, 0) = 0 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5198] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5200] write(3, "1000", 4) = 4 [pid 5200] close(3) = 0 [pid 5200] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5198] <... openat resumed>) = 4 [pid 5200] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5198] sendfile(4, 3, [122] [pid 5200] <... openat resumed>) = 4 [pid 5200] sendfile(4, 3, [122] [pid 5196] <... munmap resumed>) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5196] close(5) = 0 [pid 5196] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5196] exit_group(0) = ? [pid 5196] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5201 ./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x555556ffb660, 24) = 0 [ 67.315171][ T5197] syz-executor638 (5197): drop_caches: 3 [ 67.315619][ T5199] syz-executor638 (5199): drop_caches: 3 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3) = 0 [pid 5201] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5197] <... sendfile resumed> => [693], 571) = 571 [pid 5201] <... openat resumed>) = 3 [ 67.368049][ T5198] syz-executor638 (5198): drop_caches: 3 [ 67.370842][ T5200] syz-executor638 (5200): drop_caches: 3 [ 67.399925][ T5197] syz-executor638 (5197): drop_caches: 3 [ 67.403771][ T5199] syz-executor638 (5199): drop_caches: 3 [pid 5201] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5199] <... sendfile resumed> => [693], 571) = 571 [pid 5197] memfd_create("syzkaller", 0 [pid 5199] memfd_create("syzkaller", 0) = 5 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5201] <... openat resumed>) = 4 [pid 5198] <... sendfile resumed> => [693], 571) = 571 [pid 5197] <... memfd_create resumed>) = 5 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] sendfile(4, 3, [122] [pid 5197] <... mmap resumed>) = 0x7fa7fde00000 [pid 5200] <... sendfile resumed> => [693], 571) = 571 [pid 5199] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5198] memfd_create("syzkaller", 0 [pid 5200] memfd_create("syzkaller", 0 [pid 5198] <... memfd_create resumed>) = 5 [pid 5197] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] <... memfd_create resumed>) = 5 [pid 5198] <... mmap resumed>) = 0x7fa7fde00000 [ 67.421228][ T5198] syz-executor638 (5198): drop_caches: 3 [ 67.434661][ T5200] syz-executor638 (5200): drop_caches: 3 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5199] <... write resumed>) = 2097152 [pid 5197] <... write resumed>) = 2097152 [pid 5198] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] munmap(0x7fa7fde00000, 138412032 [pid 5197] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5199] <... munmap resumed>) = 0 [pid 5197] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5200] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5197] close(5 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5197] <... close resumed>) = 0 [pid 5199] close(5 [pid 5198] <... write resumed>) = 2097152 [pid 5197] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [ 67.482421][ T5201] syz-executor638 (5201): drop_caches: 3 [pid 5198] munmap(0x7fa7fde00000, 138412032 [pid 5200] <... write resumed>) = 2097152 [pid 5199] <... close resumed>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5201] <... sendfile resumed> => [693], 571) = 571 [pid 5200] munmap(0x7fa7fde00000, 138412032 [pid 5199] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5201] memfd_create("syzkaller", 0 [pid 5200] <... munmap resumed>) = 0 [pid 5199] <... openat resumed>) = 5 [pid 5198] <... munmap resumed>) = 0 [pid 5200] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5198] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5199] exit_group(0 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] <... memfd_create resumed>) = 5 [pid 5200] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5199] <... exit_group resumed>) = ? [pid 5198] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] close(5 [pid 5198] close(5./strace-static-x86_64: Process 5202 attached [pid 5201] <... mmap resumed>) = 0x7fa7fde00000 [pid 5200] <... close resumed>) = 0 [pid 5199] +++ exited with 0 +++ [pid 5200] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5048] --- 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=11 /* 0.11 s */} --- [pid 5200] <... openat resumed>) = 5 [pid 5202] set_robust_list(0x555556ffb660, 24 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5203 attached [pid 5202] <... set_robust_list resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5202 [pid 5203] set_robust_list(0x555556ffb660, 24 [pid 5200] exit_group(0 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5203 [pid 5203] <... set_robust_list resumed>) = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5202] <... prctl resumed>) = 0 [pid 5200] <... exit_group resumed>) = ? [pid 5203] <... prctl resumed>) = 0 [pid 5202] setpgid(0, 0 [pid 5200] +++ exited with 0 +++ [pid 5203] setpgid(0, 0) = 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] restart_syscall(<... resuming interrupted clone ...> [pid 5203] write(3, "1000", 4) = 4 [pid 5202] <... setpgid resumed>) = 0 [pid 5051] <... restart_syscall resumed>) = 0 [pid 5203] close(3) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5203] <... openat resumed>) = 3 [pid 5202] <... openat resumed>) = 3 [pid 5203] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5203] <... openat resumed>) = 4 [pid 5202] write(3, "1000", 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5203] sendfile(4, 3, [122] [pid 5202] <... write resumed>) = 4 [pid 5198] <... close resumed>) = 0 [pid 5202] close(3./strace-static-x86_64: Process 5204 attached [pid 5204] set_robust_list(0x555556ffb660, 24) = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5204] setpgid(0, 0) = 0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5204] write(3, "1000", 4) = 4 [pid 5204] close(3) = 0 [pid 5204] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5202] <... close resumed>) = 0 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5204 [pid 5204] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5204] sendfile(4, 3, [122] [pid 5202] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5198] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5202] <... openat resumed>) = 3 [pid 5198] <... openat resumed>) = 5 [pid 5202] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5198] exit_group(0 [pid 5202] <... openat resumed>) = 4 [pid 5202] sendfile(4, 3, [122] [pid 5198] <... exit_group resumed>) = ? [pid 5198] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [ 67.541872][ T5201] syz-executor638 (5201): drop_caches: 3 [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5205 ./strace-static-x86_64: Process 5205 attached [pid 5205] set_robust_list(0x555556ffb660, 24) = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5205] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5201] <... write resumed>) = 2097152 [pid 5205] sendfile(4, 3, [122] [pid 5201] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5201] close(5) = 0 [pid 5201] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5201] exit_group(0) = ? [pid 5201] +++ exited with 0 +++ [ 67.630909][ T5204] syz-executor638 (5204): drop_caches: 3 [ 67.643065][ T5203] syz-executor638 (5203): drop_caches: 3 [ 67.660206][ T5202] syz-executor638 (5202): drop_caches: 3 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5206 ./strace-static-x86_64: Process 5206 attached [pid 5206] set_robust_list(0x555556ffb660, 24) = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5206] setpgid(0, 0) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5206] write(3, "1000", 4) = 4 [pid 5202] <... sendfile resumed> => [693], 571) = 571 [pid 5206] close(3 [pid 5203] <... sendfile resumed> => [693], 571) = 571 [pid 5206] <... close resumed>) = 0 [pid 5203] memfd_create("syzkaller", 0 [ 67.692265][ T5205] syz-executor638 (5205): drop_caches: 3 [ 67.710198][ T5203] syz-executor638 (5203): drop_caches: 3 [ 67.714254][ T5202] syz-executor638 (5202): drop_caches: 3 [ 67.734386][ T5204] syz-executor638 (5204): drop_caches: 3 [pid 5202] memfd_create("syzkaller", 0 [pid 5206] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5203] <... memfd_create resumed>) = 5 [pid 5202] <... memfd_create resumed>) = 5 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5206] <... openat resumed>) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5203] <... mmap resumed>) = 0x7fa7fde00000 [pid 5206] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5205] <... sendfile resumed> => [693], 571) = 571 [pid 5204] <... sendfile resumed> => [693], 571) = 571 [pid 5202] <... mmap resumed>) = 0x7fa7fde00000 [pid 5206] <... openat resumed>) = 4 [pid 5206] sendfile(4, 3, [122] [pid 5205] memfd_create("syzkaller", 0 [pid 5204] memfd_create("syzkaller", 0 [pid 5205] <... memfd_create resumed>) = 5 [pid 5204] <... memfd_create resumed>) = 5 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5205] <... mmap resumed>) = 0x7fa7fde00000 [pid 5204] <... mmap resumed>) = 0x7fa7fde00000 [ 67.747199][ T5205] syz-executor638 (5205): drop_caches: 3 [pid 5203] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5204] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] <... write resumed>) = 2097152 [pid 5205] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5203] close(5 [pid 5205] <... write resumed>) = 2097152 [pid 5205] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5205] close(5 [pid 5203] <... close resumed>) = 0 [pid 5205] <... close resumed>) = 0 [pid 5203] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5202] <... write resumed>) = 2097152 [pid 5205] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5204] <... write resumed>) = 2097152 [pid 5203] <... openat resumed>) = 5 [pid 5202] munmap(0x7fa7fde00000, 138412032 [pid 5205] <... openat resumed>) = 5 [pid 5204] munmap(0x7fa7fde00000, 138412032 [pid 5202] <... munmap resumed>) = 0 [pid 5205] exit_group(0 [pid 5203] exit_group(0) = ? [pid 5205] <... exit_group resumed>) = ? [ 67.806223][ T5206] syz-executor638 (5206): drop_caches: 3 [pid 5204] <... munmap resumed>) = 0 [pid 5206] <... sendfile resumed> => [693], 571) = 571 [pid 5205] +++ exited with 0 +++ [pid 5204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5203] +++ exited with 0 +++ [pid 5202] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5206] memfd_create("syzkaller", 0 [pid 5204] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5202] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5204] close(5 [pid 5206] <... memfd_create resumed>) = 5 [pid 5202] close(5 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5207 attached [pid 5207] set_robust_list(0x555556ffb660, 24 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5207] <... set_robust_list resumed>) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5207 [pid 5206] <... mmap resumed>) = 0x7fa7fde00000 ./strace-static-x86_64: Process 5208 attached [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5208] set_robust_list(0x555556ffb660, 24 [pid 5207] setpgid(0, 0 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5208 [pid 5207] <... setpgid resumed>) = 0 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5204] <... close resumed>) = 0 [pid 5208] <... prctl resumed>) = 0 [pid 5208] setpgid(0, 0) = 0 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5207] <... openat resumed>) = 3 [pid 5208] <... openat resumed>) = 3 [pid 5207] write(3, "1000", 4 [pid 5204] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5208] write(3, "1000", 4 [pid 5207] <... write resumed>) = 4 [pid 5208] <... write resumed>) = 4 [pid 5207] close(3) = 0 [pid 5208] close(3) = 0 [pid 5207] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5207] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5208] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5204] <... openat resumed>) = 5 [pid 5207] sendfile(4, 3, [122] [pid 5208] <... openat resumed>) = 3 [pid 5204] exit_group(0) = ? [pid 5208] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5204] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5209 attached [pid 5208] <... openat resumed>) = 4 [pid 5209] set_robust_list(0x555556ffb660, 24 [pid 5208] sendfile(4, 3, [122] [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5209 [pid 5209] <... set_robust_list resumed>) = 0 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5209] setpgid(0, 0) = 0 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5209] close(3) = 0 [pid 5209] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5209] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5209] sendfile(4, 3, [122] [pid 5202] <... close resumed>) = 0 [pid 5202] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5202] exit_group(0) = ? [pid 5202] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [ 67.870665][ T5206] syz-executor638 (5206): drop_caches: 3 [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5210 ./strace-static-x86_64: Process 5210 attached [pid 5210] set_robust_list(0x555556ffb660, 24) = 0 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5210] setpgid(0, 0) = 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5210] write(3, "1000", 4) = 4 [pid 5210] close(3) = 0 [pid 5210] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5206] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5210] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5210] sendfile(4, 3, [122] [pid 5206] <... write resumed>) = 2097152 [pid 5206] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5206] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5206] close(5) = 0 [pid 5206] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5206] exit_group(0) = ? [pid 5206] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5211 [ 67.959963][ T5208] syz-executor638 (5208): drop_caches: 3 [ 67.969228][ T5207] syz-executor638 (5207): drop_caches: 3 [ 67.976263][ T5209] syz-executor638 (5209): drop_caches: 3 [ 67.998703][ T5210] syz-executor638 (5210): drop_caches: 3 ./strace-static-x86_64: Process 5211 attached [pid 5211] set_robust_list(0x555556ffb660, 24) = 0 [pid 5208] <... sendfile resumed> => [693], 571) = 571 [pid 5207] <... sendfile resumed> => [693], 571) = 571 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] memfd_create("syzkaller", 0 [pid 5211] <... prctl resumed>) = 0 [pid 5208] memfd_create("syzkaller", 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] <... memfd_create resumed>) = 5 [pid 5211] <... openat resumed>) = 3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] write(3, "1000", 4) = 4 [pid 5208] <... mmap resumed>) = 0x7fa7fde00000 [pid 5211] close(3) = 0 [pid 5211] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5207] <... memfd_create resumed>) = 5 [pid 5211] <... openat resumed>) = 3 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5207] <... mmap resumed>) = 0x7fa7fde00000 [pid 5211] <... openat resumed>) = 4 [ 68.030214][ T5207] syz-executor638 (5207): drop_caches: 3 [ 68.039603][ T5208] syz-executor638 (5208): drop_caches: 3 [pid 5211] sendfile(4, 3, [122] [pid 5209] <... sendfile resumed> => [693], 571) = 571 [pid 5209] memfd_create("syzkaller", 0 [pid 5210] <... sendfile resumed> => [693], 571) = 571 [pid 5208] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5207] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5209] <... memfd_create resumed>) = 5 [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5210] memfd_create("syzkaller", 0) = 5 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5207] <... write resumed>) = 2097152 [pid 5208] <... write resumed>) = 2097152 [pid 5208] munmap(0x7fa7fde00000, 138412032 [pid 5207] munmap(0x7fa7fde00000, 138412032 [pid 5208] <... munmap resumed>) = 0 [pid 5207] <... munmap resumed>) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 68.075855][ T5209] syz-executor638 (5209): drop_caches: 3 [ 68.100025][ T5210] syz-executor638 (5210): drop_caches: 3 [ 68.104272][ T5211] syz-executor638 (5211): drop_caches: 3 [pid 5207] close(5 [pid 5209] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5210] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5208] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5207] <... close resumed>) = 0 [pid 5208] close(5 [pid 5207] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5207] exit_group(0) = ? [pid 5211] <... sendfile resumed> => [693], 571) = 571 [pid 5208] <... close resumed>) = 0 [pid 5207] +++ exited with 0 +++ [pid 5208] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5211] memfd_create("syzkaller", 0 [pid 5208] <... openat resumed>) = 5 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5211] <... memfd_create resumed>) = 5 [pid 5049] <... restart_syscall resumed>) = 0 [pid 5208] exit_group(0 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5208] <... exit_group resumed>) = ? [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5211] <... mmap resumed>) = 0x7fa7fde00000 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5212 attached [pid 5212] set_robust_list(0x555556ffb660, 24 [pid 5208] +++ exited with 0 +++ [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5212 [pid 5212] <... set_robust_list resumed>) = 0 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5212] <... prctl resumed>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5212] setpgid(0, 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] <... setpgid resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5212] <... openat resumed>) = 3 [pid 5212] write(3, "1000", 4) = 4 [pid 5212] close(3 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5213 [pid 5212] <... close resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5212] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5212] sendfile(4, 3, [122]./strace-static-x86_64: Process 5213 attached [pid 5213] set_robust_list(0x555556ffb660, 24) = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5210] <... write resumed>) = 2097152 [pid 5213] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5210] munmap(0x7fa7fde00000, 138412032 [pid 5213] <... openat resumed>) = 4 [pid 5210] <... munmap resumed>) = 0 [pid 5213] sendfile(4, 3, [122] [pid 5210] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 68.171138][ T5211] syz-executor638 (5211): drop_caches: 3 [pid 5210] close(5) = 0 [pid 5211] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5209] <... write resumed>) = 2097152 [pid 5209] munmap(0x7fa7fde00000, 138412032 [pid 5210] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5210] exit_group(0 [pid 5209] <... munmap resumed>) = 0 [pid 5210] <... exit_group resumed>) = ? [pid 5209] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5210] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5211] <... write resumed>) = 2097152 [pid 5209] close(5 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5214 [pid 5211] munmap(0x7fa7fde00000, 138412032./strace-static-x86_64: Process 5214 attached [pid 5214] set_robust_list(0x555556ffb660, 24 [pid 5211] <... munmap resumed>) = 0 [pid 5209] <... close resumed>) = 0 [pid 5214] <... set_robust_list resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5214] setpgid(0, 0 [pid 5211] close(5 [pid 5214] <... setpgid resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5214] write(3, "1000", 4) = 4 [pid 5214] close(3) = 0 [pid 5214] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5214] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5214] sendfile(4, 3, [122] [pid 5209] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5209] exit_group(0 [pid 5211] <... close resumed>) = 0 [pid 5209] <... exit_group resumed>) = ? [pid 5209] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 68.269508][ T5213] syz-executor638 (5213): drop_caches: 3 [ 68.281730][ T5212] syz-executor638 (5212): drop_caches: 3 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5211] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000./strace-static-x86_64: Process 5215 attached [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5215 [pid 5215] set_robust_list(0x555556ffb660, 24) = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setpgid(0, 0) = 0 [pid 5212] <... sendfile resumed> => [693], 571) = 571 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] <... openat resumed>) = 5 [pid 5213] <... sendfile resumed> => [693], 571) = 571 [pid 5213] memfd_create("syzkaller", 0 [pid 5212] memfd_create("syzkaller", 0 [pid 5211] exit_group(0 [pid 5213] <... memfd_create resumed>) = 5 [pid 5211] <... exit_group resumed>) = ? [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5212] <... memfd_create resumed>) = 5 [pid 5215] <... openat resumed>) = 3 [pid 5213] <... mmap resumed>) = 0x7fa7fde00000 [pid 5211] +++ exited with 0 +++ [pid 5215] write(3, "1000", 4 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5215] <... write resumed>) = 4 [pid 5215] close(3) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5215] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5216 attached [pid 5215] <... openat resumed>) = 3 [pid 5215] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5216] set_robust_list(0x555556ffb660, 24 [pid 5212] <... mmap resumed>) = 0x7fa7fde00000 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5216 [ 68.331011][ T5213] syz-executor638 (5213): drop_caches: 3 [ 68.331274][ T5212] syz-executor638 (5212): drop_caches: 3 [ 68.340269][ T5214] syz-executor638 (5214): drop_caches: 3 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5215] sendfile(4, 3, [122] [pid 5213] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5216] setpgid(0, 0) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5216] write(3, "1000", 4) = 4 [pid 5214] <... sendfile resumed> => [693], 571) = 571 [pid 5216] close(3) = 0 [pid 5216] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5216] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5216] sendfile(4, 3, [122] [pid 5214] memfd_create("syzkaller", 0) = 5 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 68.379351][ T5214] syz-executor638 (5214): drop_caches: 3 [pid 5212] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5214] <... mmap resumed>) = 0x7fa7fde00000 [pid 5213] <... write resumed>) = 2097152 [pid 5212] <... write resumed>) = 2097152 [pid 5213] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5212] munmap(0x7fa7fde00000, 138412032 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5214] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5212] <... munmap resumed>) = 0 [pid 5213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5213] close(5) = 0 [pid 5213] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5213] exit_group(0) = ? [pid 5213] +++ exited with 0 +++ [pid 5212] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5212] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5217 attached [ 68.422616][ T5215] syz-executor638 (5215): drop_caches: 3 [ 68.433049][ T5216] syz-executor638 (5216): drop_caches: 3 [pid 5214] <... write resumed>) = 2097152 [pid 5212] close(5 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5217 [pid 5217] set_robust_list(0x555556ffb660, 24) = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5217] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5217] sendfile(4, 3, [122] [pid 5212] <... close resumed>) = 0 [pid 5214] munmap(0x7fa7fde00000, 138412032 [pid 5215] <... sendfile resumed> => [693], 571) = 571 [pid 5215] memfd_create("syzkaller", 0) = 5 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5214] <... munmap resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5214] close(5) = 0 [pid 5212] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [ 68.476771][ T5215] syz-executor638 (5215): drop_caches: 3 [pid 5215] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5214] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5212] <... openat resumed>) = 5 [pid 5212] exit_group(0) = ? [pid 5212] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5218 ./strace-static-x86_64: Process 5218 attached [pid 5218] set_robust_list(0x555556ffb660, 24) = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5214] <... openat resumed>) = 5 [pid 5218] write(3, "1000", 4) = 4 [pid 5216] <... sendfile resumed> => [693], 571) = 571 [pid 5214] exit_group(0 [pid 5218] close(3 [pid 5214] <... exit_group resumed>) = ? [pid 5218] <... close resumed>) = 0 [pid 5218] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5218] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5218] sendfile(4, 3, [122] [pid 5214] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5216] memfd_create("syzkaller", 0 [pid 5215] <... write resumed>) = 2097152 [pid 5216] <... memfd_create resumed>) = 5 [pid 5215] munmap(0x7fa7fde00000, 138412032 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5216] <... mmap resumed>) = 0x7fa7fde00000 [pid 5215] <... munmap resumed>) = 0 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 68.524131][ T5216] syz-executor638 (5216): drop_caches: 3 [ 68.549519][ T5217] syz-executor638 (5217): drop_caches: 3 [pid 5216] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached , child_tidptr=0x555556ffb650) = 5219 [pid 5215] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5219] set_robust_list(0x555556ffb660, 24 [pid 5215] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5219] <... set_robust_list resumed>) = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] setpgid(0, 0) = 0 [pid 5215] close(5 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [ 68.570360][ T5218] syz-executor638 (5218): drop_caches: 3 [pid 5219] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5217] <... sendfile resumed> => [693], 571) = 571 [pid 5216] <... write resumed>) = 2097152 [pid 5219] <... openat resumed>) = 3 [pid 5217] memfd_create("syzkaller", 0 [pid 5215] <... close resumed>) = 0 [pid 5219] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5219] sendfile(4, 3, [122] [pid 5216] munmap(0x7fa7fde00000, 138412032 [pid 5217] <... memfd_create resumed>) = 5 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5218] <... sendfile resumed> => [693], 571) = 571 [pid 5216] <... munmap resumed>) = 0 [pid 5215] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5216] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5218] memfd_create("syzkaller", 0 [pid 5216] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5216] close(5 [pid 5215] <... openat resumed>) = 5 [pid 5215] exit_group(0 [pid 5218] <... memfd_create resumed>) = 5 [pid 5215] <... exit_group resumed>) = ? [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5215] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5217] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5220 attached [pid 5220] set_robust_list(0x555556ffb660, 24 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5220 [ 68.596417][ T5217] syz-executor638 (5217): drop_caches: 3 [ 68.619396][ T5218] syz-executor638 (5218): drop_caches: 3 [pid 5220] <... set_robust_list resumed>) = 0 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5216] <... close resumed>) = 0 [pid 5220] <... prctl resumed>) = 0 [pid 5220] setpgid(0, 0) = 0 [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1000", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5220] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5220] sendfile(4, 3, [122] [pid 5218] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5216] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5217] <... write resumed>) = 2097152 [pid 5217] munmap(0x7fa7fde00000, 138412032 [pid 5216] <... openat resumed>) = 5 [pid 5216] exit_group(0) = ? [pid 5217] <... munmap resumed>) = 0 [pid 5216] +++ exited with 0 +++ [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5217] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5217] close(5 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5218] <... write resumed>) = 2097152 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5218] munmap(0x7fa7fde00000, 138412032 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x555556ffb660, 24 [pid 5218] <... munmap resumed>) = 0 [ 68.664372][ T5219] syz-executor638 (5219): drop_caches: 3 [pid 5221] <... set_robust_list resumed>) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5218] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5218] close(5 [pid 5221] <... prctl resumed>) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5221] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5221] sendfile(4, 3, [122] [pid 5217] <... close resumed>) = 0 [pid 5217] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5217] exit_group(0 [pid 5219] <... sendfile resumed> => [693], 571) = 571 [pid 5218] <... close resumed>) = 0 [pid 5217] <... exit_group resumed>) = ? [pid 5219] memfd_create("syzkaller", 0 [pid 5218] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5218] exit_group(0) = ? [pid 5218] +++ exited with 0 +++ [pid 5217] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5219] <... memfd_create resumed>) = 5 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5223 attached ./strace-static-x86_64: Process 5222 attached [pid 5219] <... mmap resumed>) = 0x7fa7fde00000 [pid 5223] set_robust_list(0x555556ffb660, 24 [pid 5222] set_robust_list(0x555556ffb660, 24 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5222 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5223 [pid 5223] <... set_robust_list resumed>) = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5223] write(3, "1000", 4) = 4 [pid 5223] close(3) = 0 [pid 5223] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5223] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 68.718151][ T5220] syz-executor638 (5220): drop_caches: 3 [ 68.739781][ T5219] syz-executor638 (5219): drop_caches: 3 [pid 5223] sendfile(4, 3, [122] [pid 5222] <... set_robust_list resumed>) = 0 [pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5222] setpgid(0, 0 [pid 5220] <... sendfile resumed> => [693], 571) = 571 [pid 5222] <... setpgid resumed>) = 0 [pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5222] write(3, "1000", 4) = 4 [pid 5220] memfd_create("syzkaller", 0 [pid 5222] close(3) = 0 [pid 5220] <... memfd_create resumed>) = 5 [pid 5219] <... write resumed>) = 2097152 [pid 5222] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5219] munmap(0x7fa7fde00000, 138412032 [pid 5220] <... mmap resumed>) = 0x7fa7fde00000 [pid 5219] <... munmap resumed>) = 0 [pid 5222] <... openat resumed>) = 3 [pid 5222] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5219] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5222] <... openat resumed>) = 4 [pid 5219] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5222] sendfile(4, 3, [122] [pid 5219] close(5 [ 68.782059][ T5220] syz-executor638 (5220): drop_caches: 3 [ 68.790179][ T5221] syz-executor638 (5221): drop_caches: 3 [ 68.808658][ T5223] syz-executor638 (5223): drop_caches: 3 [pid 5220] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5219] <... close resumed>) = 0 [pid 5220] <... write resumed>) = 2097152 [pid 5219] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5221] <... sendfile resumed> => [693], 571) = 571 [pid 5220] munmap(0x7fa7fde00000, 138412032 [pid 5221] memfd_create("syzkaller", 0 [pid 5219] <... openat resumed>) = 5 [pid 5219] exit_group(0 [pid 5221] <... memfd_create resumed>) = 5 [pid 5219] <... exit_group resumed>) = ? [pid 5219] +++ exited with 0 +++ [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5220] <... munmap resumed>) = 0 [pid 5220] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5224 [pid 5220] close(5./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x555556ffb660, 24) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4) = 4 [pid 5224] close(3) = 0 [pid 5224] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5224] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 68.862572][ T5221] syz-executor638 (5221): drop_caches: 3 [pid 5224] sendfile(4, 3, [122] [pid 5220] <... close resumed>) = 0 [pid 5221] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5220] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5220] exit_group(0) = ? [pid 5220] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5051] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5225 ./strace-static-x86_64: Process 5225 attached [pid 5223] <... sendfile resumed> => [693], 571) = 571 [pid 5225] set_robust_list(0x555556ffb660, 24 [pid 5223] memfd_create("syzkaller", 0 [pid 5225] <... set_robust_list resumed>) = 0 [pid 5223] <... memfd_create resumed>) = 5 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5221] <... write resumed>) = 2097152 [pid 5225] <... prctl resumed>) = 0 [pid 5225] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 68.903498][ T5222] syz-executor638 (5222): drop_caches: 3 [ 68.905610][ T5223] syz-executor638 (5223): drop_caches: 3 [pid 5221] munmap(0x7fa7fde00000, 138412032 [pid 5225] <... openat resumed>) = 3 [pid 5225] write(3, "1000", 4 [pid 5222] <... sendfile resumed> => [693], 571) = 571 [pid 5221] <... munmap resumed>) = 0 [pid 5225] <... write resumed>) = 4 [pid 5225] close(3) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5225] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5222] memfd_create("syzkaller", 0 [pid 5221] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5225] <... openat resumed>) = 3 [pid 5223] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5222] <... memfd_create resumed>) = 5 [pid 5225] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5221] close(5 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5221] <... close resumed>) = 0 [pid 5225] <... openat resumed>) = 4 [pid 5222] <... mmap resumed>) = 0x7fa7fde00000 [pid 5221] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5225] sendfile(4, 3, [122] [pid 5221] <... openat resumed>) = 5 [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5226 attached [pid 5226] set_robust_list(0x555556ffb660, 24) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5226 [pid 5226] setpgid(0, 0) = 0 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1000", 4) = 4 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5226] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 68.966360][ T5222] syz-executor638 (5222): drop_caches: 3 [ 68.967725][ T5224] syz-executor638 (5224): drop_caches: 3 [pid 5226] sendfile(4, 3, [122] [pid 5223] <... write resumed>) = 2097152 [pid 5222] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5223] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5223] close(5) = 0 [pid 5223] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5222] <... write resumed>) = 2097152 [pid 5223] exit_group(0 [pid 5222] munmap(0x7fa7fde00000, 138412032 [pid 5223] <... exit_group resumed>) = ? [pid 5222] <... munmap resumed>) = 0 [pid 5224] <... sendfile resumed> => [693], 571) = 571 [pid 5222] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5224] memfd_create("syzkaller", 0 [pid 5223] +++ exited with 0 +++ [pid 5222] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] <... memfd_create resumed>) = 5 [pid 5222] close(5 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5227 [pid 5224] <... mmap resumed>) = 0x7fa7fde00000 ./strace-static-x86_64: Process 5227 attached [pid 5222] <... close resumed>) = 0 [pid 5227] set_robust_list(0x555556ffb660, 24) = 0 [pid 5222] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5222] exit_group(0) = ? [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [ 69.043301][ T5225] syz-executor638 (5225): drop_caches: 3 [ 69.061887][ T5226] syz-executor638 (5226): drop_caches: 3 [ 69.069912][ T5224] syz-executor638 (5224): drop_caches: 3 [pid 5227] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5222] +++ exited with 0 +++ [pid 5227] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5226] <... sendfile resumed> => [693], 571) = 571 [pid 5224] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5227] <... openat resumed>) = 4 [pid 5226] memfd_create("syzkaller", 0 [pid 5225] <... sendfile resumed> => [693], 571) = 571 [pid 5227] sendfile(4, 3, [122] [pid 5226] <... memfd_create resumed>) = 5 [pid 5225] memfd_create("syzkaller", 0 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5225] <... memfd_create resumed>) = 5 [pid 5224] <... write resumed>) = 2097152 [pid 5226] <... mmap resumed>) = 0x7fa7fde00000 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5225] <... mmap resumed>) = 0x7fa7fde00000 [pid 5224] munmap(0x7fa7fde00000, 138412032 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5224] <... munmap resumed>) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached [pid 5228] set_robust_list(0x555556ffb660, 24 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5228 [pid 5228] <... set_robust_list resumed>) = 0 [ 69.120986][ T5226] syz-executor638 (5226): drop_caches: 3 [ 69.125904][ T5225] syz-executor638 (5225): drop_caches: 3 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5224] close(5 [pid 5228] setpgid(0, 0 [pid 5225] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5228] <... setpgid resumed>) = 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5228] write(3, "1000", 4) = 4 [pid 5224] <... close resumed>) = 0 [pid 5228] close(3) = 0 [pid 5228] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5224] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5228] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5225] <... write resumed>) = 2097152 [pid 5224] <... openat resumed>) = 5 [pid 5225] munmap(0x7fa7fde00000, 138412032 [pid 5228] <... openat resumed>) = 4 [pid 5226] <... write resumed>) = 2097152 [pid 5224] exit_group(0 [pid 5228] sendfile(4, 3, [122] [pid 5226] munmap(0x7fa7fde00000, 138412032 [pid 5225] <... munmap resumed>) = 0 [pid 5224] <... exit_group resumed>) = ? [pid 5226] <... munmap resumed>) = 0 [ 69.162425][ T5227] syz-executor638 (5227): drop_caches: 3 [pid 5225] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5227] <... sendfile resumed> => [693], 571) = 571 [pid 5226] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5224] +++ exited with 0 +++ [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5227] memfd_create("syzkaller", 0 [pid 5225] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5227] <... memfd_create resumed>) = 5 [pid 5226] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5225] close(5 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5226] close(5 [pid 5050] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] <... close resumed>) = 0 [pid 5225] <... close resumed>) = 0 ./strace-static-x86_64: Process 5229 attached [pid 5227] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5226] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5225] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5225] exit_group(0 [pid 5229] set_robust_list(0x555556ffb660, 24 [pid 5226] exit_group(0 [pid 5225] <... exit_group resumed>) = ? [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5229 [pid 5226] <... exit_group resumed>) = ? [pid 5225] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5229] <... set_robust_list resumed>) = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5229] <... prctl resumed>) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5226] +++ exited with 0 +++ [pid 5229] write(3, "1000", 4 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5229] <... write resumed>) = 4 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5229] close(3 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5229] <... close resumed>) = 0 [pid 5052] <... restart_syscall resumed>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5230 ./strace-static-x86_64: Process 5230 attached [pid 5230] set_robust_list(0x555556ffb660, 24) = 0 [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5231 ./strace-static-x86_64: Process 5231 attached [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] setpgid(0, 0 [pid 5231] set_robust_list(0x555556ffb660, 24) = 0 [pid 5230] <... setpgid resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] <... openat resumed>) = 3 [pid 5229] <... openat resumed>) = 3 [pid 5230] write(3, "1000", 4 [pid 5229] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5230] <... write resumed>) = 4 [pid 5230] close(3 [pid 5231] <... prctl resumed>) = 0 [pid 5230] <... close resumed>) = 0 [pid 5229] <... openat resumed>) = 4 [pid 5230] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5231] setpgid(0, 0 [pid 5230] <... openat resumed>) = 3 [pid 5229] sendfile(4, 3, [122] [pid 5231] <... setpgid resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] <... openat resumed>) = 4 [pid 5231] write(3, "1000", 4) = 4 [pid 5230] sendfile(4, 3, [122] [pid 5231] close(3 [pid 5227] <... write resumed>) = 2097152 [pid 5231] <... close resumed>) = 0 [pid 5231] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5227] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5231] <... openat resumed>) = 3 [ 69.213331][ T5227] syz-executor638 (5227): drop_caches: 3 [ 69.244224][ T5228] syz-executor638 (5228): drop_caches: 3 [pid 5231] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5231] sendfile(4, 3, [122] [pid 5227] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5227] close(5) = 0 [pid 5228] <... sendfile resumed> => [693], 571) = 571 [pid 5227] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5228] memfd_create("syzkaller", 0 [pid 5227] <... openat resumed>) = 5 [pid 5228] <... memfd_create resumed>) = 5 [pid 5227] exit_group(0 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5227] <... exit_group resumed>) = ? [pid 5228] <... mmap resumed>) = 0x7fa7fde00000 [pid 5227] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5232 ./strace-static-x86_64: Process 5232 attached [ 69.309096][ T5228] syz-executor638 (5228): drop_caches: 3 [ 69.327977][ T5230] syz-executor638 (5230): drop_caches: 3 [ 69.338050][ T5229] syz-executor638 (5229): drop_caches: 3 [ 69.340288][ T5231] syz-executor638 (5231): drop_caches: 3 [pid 5230] <... sendfile resumed> => [693], 571) = 571 [pid 5232] set_robust_list(0x555556ffb660, 24 [pid 5230] memfd_create("syzkaller", 0) = 5 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5228] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5232] setpgid(0, 0) = 0 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5232] write(3, "1000", 4) = 4 [pid 5232] close(3) = 0 [pid 5232] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5232] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 69.371120][ T5230] syz-executor638 (5230): drop_caches: 3 [pid 5232] sendfile(4, 3, [122] [pid 5229] <... sendfile resumed> => [693], 571) = 571 [pid 5228] <... write resumed>) = 2097152 [pid 5228] munmap(0x7fa7fde00000, 138412032 [pid 5230] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5229] memfd_create("syzkaller", 0 [pid 5228] <... munmap resumed>) = 0 [pid 5229] <... memfd_create resumed>) = 5 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5231] <... sendfile resumed> => [693], 571) = 571 [pid 5231] memfd_create("syzkaller", 0 [pid 5229] <... mmap resumed>) = 0x7fa7fde00000 [pid 5228] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5231] <... memfd_create resumed>) = 5 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5228] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5228] close(5 [pid 5230] <... write resumed>) = 2097152 [pid 5231] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5230] munmap(0x7fa7fde00000, 138412032 [pid 5228] <... close resumed>) = 0 [pid 5230] <... munmap resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 69.411355][ T5229] syz-executor638 (5229): drop_caches: 3 [ 69.422441][ T5231] syz-executor638 (5231): drop_caches: 3 [ 69.441254][ T5232] syz-executor638 (5232): drop_caches: 3 [pid 5230] close(5) = 0 [pid 5228] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5230] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5230] exit_group(0) = ? [pid 5232] <... sendfile resumed> => [693], 571) = 571 [pid 5230] +++ exited with 0 +++ [pid 5228] <... openat resumed>) = 5 [pid 5231] <... write resumed>) = 2097152 [pid 5228] exit_group(0 [pid 5232] memfd_create("syzkaller", 0 [pid 5231] munmap(0x7fa7fde00000, 138412032 [pid 5228] <... exit_group resumed>) = ? [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5232] <... memfd_create resumed>) = 5 [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5232] <... mmap resumed>) = 0x7fa7fde00000 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5233 attached [pid 5232] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5229] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5228] +++ exited with 0 +++ [pid 5233] set_robust_list(0x555556ffb660, 24 [pid 5231] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5233 [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5233] <... set_robust_list resumed>) = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0 [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5233] <... setpgid resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5231] close(5 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5233] <... openat resumed>) = 3 [pid 5233] write(3, "1000", 4 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... write resumed>) = 4 ./strace-static-x86_64: Process 5234 attached [pid 5233] close(3 [pid 5232] <... write resumed>) = 2097152 [pid 5231] <... close resumed>) = 0 [pid 5229] <... write resumed>) = 2097152 [pid 5234] set_robust_list(0x555556ffb660, 24 [pid 5233] <... close resumed>) = 0 [pid 5232] munmap(0x7fa7fde00000, 138412032 [pid 5231] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5229] munmap(0x7fa7fde00000, 138412032 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5232] <... munmap resumed>) = 0 [pid 5231] <... openat resumed>) = 5 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5234 [ 69.488758][ T5232] syz-executor638 (5232): drop_caches: 3 [pid 5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... openat resumed>) = 3 [pid 5231] exit_group(0 [pid 5229] <... munmap resumed>) = 0 [pid 5234] <... prctl resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5232] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5231] <... exit_group resumed>) = ? [pid 5229] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5232] close(5 [pid 5229] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5234] setpgid(0, 0 [pid 5229] close(5 [pid 5234] <... setpgid resumed>) = 0 [pid 5233] <... openat resumed>) = 4 [pid 5232] <... close resumed>) = 0 [pid 5231] +++ exited with 0 +++ [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5234] <... openat resumed>) = 3 [pid 5234] write(3, "1000", 4) = 4 [pid 5232] <... openat resumed>) = 5 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5232] exit_group(0 [pid 5234] <... openat resumed>) = 3 [pid 5233] sendfile(4, 3, [122] [pid 5232] <... exit_group resumed>) = ? [pid 5234] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5234] <... openat resumed>) = 4 [pid 5232] +++ exited with 0 +++ [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- ./strace-static-x86_64: Process 5235 attached [pid 5234] sendfile(4, 3, [122] [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5235] set_robust_list(0x555556ffb660, 24 [pid 5229] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5235] <... set_robust_list resumed>) = 0 [pid 5229] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5235 ./strace-static-x86_64: Process 5236 attached [pid 5236] set_robust_list(0x555556ffb660, 24) = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setpgid(0, 0) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1000", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] <... openat resumed>) = 5 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5236 [pid 5236] <... openat resumed>) = 3 [pid 5236] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5229] exit_group(0 [pid 5235] setpgid(0, 0 [pid 5229] <... exit_group resumed>) = ? [pid 5235] <... setpgid resumed>) = 0 [pid 5236] <... openat resumed>) = 4 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] sendfile(4, 3, [122] [pid 5235] <... openat resumed>) = 3 [pid 5229] +++ exited with 0 +++ [pid 5235] write(3, "1000", 4) = 4 [pid 5235] close(3) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=7 /* 0.07 s */} --- [pid 5235] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5237 [pid 5235] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5237 attached [pid 5237] set_robust_list(0x555556ffb660, 24 [pid 5235] <... openat resumed>) = 4 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5235] sendfile(4, 3, [122] [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5237] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 69.605790][ T5233] syz-executor638 (5233): drop_caches: 3 [ 69.632560][ T5234] syz-executor638 (5234): drop_caches: 3 [ 69.637875][ T5236] syz-executor638 (5236): drop_caches: 3 [pid 5237] sendfile(4, 3, [122] [pid 5233] <... sendfile resumed> => [693], 571) = 571 [pid 5233] memfd_create("syzkaller", 0) = 5 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5234] <... sendfile resumed> => [693], 571) = 571 [ 69.672567][ T5235] syz-executor638 (5235): drop_caches: 3 [ 69.683705][ T5233] syz-executor638 (5233): drop_caches: 3 [ 69.703930][ T5234] syz-executor638 (5234): drop_caches: 3 [ 69.710960][ T5237] syz-executor638 (5237): drop_caches: 3 [pid 5234] memfd_create("syzkaller", 0) = 5 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5236] <... sendfile resumed> => [693], 571) = 571 [pid 5236] memfd_create("syzkaller", 0 [pid 5233] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5236] <... memfd_create resumed>) = 5 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5235] <... sendfile resumed> => [693], 571) = 571 [pid 5236] <... mmap resumed>) = 0x7fa7fde00000 [pid 5235] memfd_create("syzkaller", 0) = 5 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 69.726992][ T5236] syz-executor638 (5236): drop_caches: 3 [ 69.750107][ T5235] syz-executor638 (5235): drop_caches: 3 [pid 5234] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5237] <... sendfile resumed> => [693], 571) = 571 [pid 5233] <... write resumed>) = 2097152 [pid 5233] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5237] memfd_create("syzkaller", 0 [pid 5236] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5237] <... memfd_create resumed>) = 5 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5233] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5233] close(5 [pid 5235] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5233] <... close resumed>) = 0 [ 69.776098][ T5237] syz-executor638 (5237): drop_caches: 3 [pid 5233] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5234] <... write resumed>) = 2097152 [pid 5233] exit_group(0 [pid 5234] munmap(0x7fa7fde00000, 138412032 [pid 5233] <... exit_group resumed>) = ? [pid 5233] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5236] <... write resumed>) = 2097152 [pid 5236] munmap(0x7fa7fde00000, 138412032 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5238 ./strace-static-x86_64: Process 5238 attached [pid 5234] <... munmap resumed>) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5238] set_robust_list(0x555556ffb660, 24 [pid 5234] close(5 [pid 5238] <... set_robust_list resumed>) = 0 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5238] setpgid(0, 0) = 0 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... munmap resumed>) = 0 [pid 5238] <... openat resumed>) = 3 [pid 5238] write(3, "1000", 4) = 4 [pid 5238] close(3) = 0 [pid 5238] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5238] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5238] sendfile(4, 3, [122] [pid 5237] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5236] close(5 [pid 5234] <... close resumed>) = 0 [pid 5234] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5235] <... write resumed>) = 2097152 [pid 5234] <... openat resumed>) = 5 [pid 5235] munmap(0x7fa7fde00000, 138412032 [pid 5234] exit_group(0 [pid 5237] <... write resumed>) = 2097152 [pid 5235] <... munmap resumed>) = 0 [pid 5234] <... exit_group resumed>) = ? [pid 5236] <... close resumed>) = 0 [pid 5236] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5234] +++ exited with 0 +++ [pid 5235] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5237] munmap(0x7fa7fde00000, 138412032 [pid 5236] <... openat resumed>) = 5 [pid 5235] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5236] exit_group(0 [pid 5235] close(5 [pid 5049] restart_syscall(<... resuming interrupted clone ...> [pid 5236] <... exit_group resumed>) = ? [pid 5049] <... restart_syscall resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x555556ffb660, 24 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5239 [pid 5239] <... set_robust_list resumed>) = 0 [pid 5236] +++ exited with 0 +++ [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] <... munmap resumed>) = 0 [pid 5235] <... close resumed>) = 0 [pid 5239] <... openat resumed>) = 3 [pid 5237] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5235] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5237] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5239] write(3, "1000", 4 [pid 5237] close(5 [pid 5235] <... openat resumed>) = 5 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5239] <... write resumed>) = 4 [pid 5235] exit_group(0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] <... exit_group resumed>) = ? [pid 5239] close(3) = 0 ./strace-static-x86_64: Process 5240 attached [pid 5239] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5240] set_robust_list(0x555556ffb660, 24 [pid 5239] <... openat resumed>) = 3 [pid 5240] <... set_robust_list resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5240 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] <... openat resumed>) = 4 [pid 5235] +++ exited with 0 +++ [pid 5240] <... prctl resumed>) = 0 [pid 5240] setpgid(0, 0 [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5240] <... setpgid resumed>) = 0 [pid 5052] restart_syscall(<... resuming interrupted clone ...> [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] sendfile(4, 3, [122] [pid 5052] <... restart_syscall resumed>) = 0 [pid 5240] write(3, "1000", 4 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ffb650) = 5241 ./strace-static-x86_64: Process 5241 attached [pid 5240] <... write resumed>) = 4 [pid 5238] <... sendfile resumed> => [693], 571) = 571 [pid 5241] set_robust_list(0x555556ffb660, 24 [pid 5240] close(3 [pid 5241] <... set_robust_list resumed>) = 0 [pid 5240] <... close resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... openat resumed>) = 3 [pid 5238] memfd_create("syzkaller", 0 [pid 5241] <... prctl resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5241] setpgid(0, 0 [pid 5240] <... openat resumed>) = 4 [pid 5241] <... setpgid resumed>) = 0 [pid 5240] sendfile(4, 3, [122] [pid 5238] <... memfd_create resumed>) = 5 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5237] <... close resumed>) = 0 [pid 5241] <... openat resumed>) = 3 [pid 5238] <... mmap resumed>) = 0x7fa7fde00000 [pid 5237] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5237] exit_group(0) = ? [pid 5241] write(3, "1000", 4 [pid 5237] +++ exited with 0 +++ [pid 5241] <... write resumed>) = 4 [pid 5241] close(3 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5050] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached [pid 5242] set_robust_list(0x555556ffb660, 24 [pid 5241] <... close resumed>) = 0 [pid 5242] <... set_robust_list resumed>) = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5242] <... prctl resumed>) = 0 [pid 5242] setpgid(0, 0 [pid 5241] <... openat resumed>) = 3 [pid 5242] <... setpgid resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5242 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5242] <... openat resumed>) = 3 [pid 5242] write(3, "1000", 4) = 4 [pid 5241] <... openat resumed>) = 4 [pid 5242] close(3) = 0 [pid 5241] sendfile(4, 3, [122] [pid 5242] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5242] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [ 69.887396][ T5238] syz-executor638 (5238): drop_caches: 3 [ 69.916877][ T5238] syz-executor638 (5238): drop_caches: 3 [pid 5242] sendfile(4, 3, [122] [pid 5238] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [ 69.986834][ T5240] syz-executor638 (5240): drop_caches: 3 [ 69.995371][ T5239] syz-executor638 (5239): drop_caches: 3 [ 69.999539][ T5242] syz-executor638 (5242): drop_caches: 3 [ 70.010682][ T5241] syz-executor638 (5241): drop_caches: 3 [pid 5238] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5238] close(5 [pid 5239] <... sendfile resumed> => [693], 571) = 571 [ 70.044050][ T5239] syz-executor638 (5239): drop_caches: 3 [ 70.072423][ T5240] syz-executor638 (5240): drop_caches: 3 [ 70.073202][ T5241] syz-executor638 (5241): drop_caches: 3 [pid 5239] memfd_create("syzkaller", 0 [pid 5238] <... close resumed>) = 0 [pid 5239] <... memfd_create resumed>) = 5 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5239] <... mmap resumed>) = 0x7fa7fde00000 [pid 5240] <... sendfile resumed> => [693], 571) = 571 [pid 5238] <... openat resumed>) = 5 [pid 5240] memfd_create("syzkaller", 0) = 5 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5241] <... sendfile resumed> => [693], 571) = 571 [pid 5238] exit_group(0) = ? [pid 5241] memfd_create("syzkaller", 0 [pid 5238] +++ exited with 0 +++ [pid 5241] <... memfd_create resumed>) = 5 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5241] <... mmap resumed>) = 0x7fa7fde00000 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5242] <... sendfile resumed> => [693], 571) = 571 ./strace-static-x86_64: Process 5243 attached [pid 5242] memfd_create("syzkaller", 0 [pid 5240] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5239] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5243] set_robust_list(0x555556ffb660, 24 [pid 5051] <... clone resumed>, child_tidptr=0x555556ffb650) = 5243 [pid 5243] <... set_robust_list resumed>) = 0 [ 70.089087][ T5242] syz-executor638 (5242): drop_caches: 3 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5242] <... memfd_create resumed>) = 5 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5241] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5239] <... write resumed>) = 2097152 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5243] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5239] munmap(0x7fa7fde00000, 138412032 [pid 5243] <... openat resumed>) = 4 [pid 5243] sendfile(4, 3, [122] [pid 5239] <... munmap resumed>) = 0 [pid 5240] <... write resumed>) = 2097152 [pid 5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5241] <... write resumed>) = 2097152 [pid 5240] munmap(0x7fa7fde00000, 138412032 [pid 5239] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5241] munmap(0x7fa7fde00000, 138412032 [pid 5239] close(5 [pid 5241] <... munmap resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5241] close(5 [pid 5240] <... munmap resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5242] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5241] <... close resumed>) = 0 [pid 5240] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5239] <... close resumed>) = 0 [pid 5240] close(5 [pid 5239] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5241] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5240] <... close resumed>) = 0 [pid 5239] <... openat resumed>) = 5 [pid 5239] exit_group(0 [pid 5241] <... openat resumed>) = 5 [pid 5239] <... exit_group resumed>) = ? [pid 5241] exit_group(0 [pid 5242] <... write resumed>) = 2097152 [pid 5241] <... exit_group resumed>) = ? [pid 5240] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5239] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5243] <... sendfile resumed> => [693], 571) = 571 [pid 5242] munmap(0x7fa7fde00000, 138412032 [pid 5241] +++ exited with 0 +++ [pid 5240] <... openat resumed>) = 5 ./strace-static-x86_64: Process 5244 attached [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5244] set_robust_list(0x555556ffb660, 24 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5244] <... set_robust_list resumed>) = 0 [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached [pid 5244] <... prctl resumed>) = 0 [pid 5243] memfd_create("syzkaller", 0 [pid 5242] <... munmap resumed>) = 0 [pid 5240] exit_group(0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5244 [pid 5245] set_robust_list(0x555556ffb660, 24 [pid 5244] setpgid(0, 0 [pid 5240] <... exit_group resumed>) = ? [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5245 [pid 5244] <... setpgid resumed>) = 0 [pid 5243] <... memfd_create resumed>) = 5 [pid 5242] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5242] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5245] <... set_robust_list resumed>) = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5244] <... openat resumed>) = 3 [pid 5243] <... mmap resumed>) = 0x7fa7fde00000 [pid 5242] close(5 [pid 5240] +++ exited with 0 +++ [pid 5245] <... prctl resumed>) = 0 [pid 5244] write(3, "1000", 4 [pid 5245] setpgid(0, 0 [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5245] <... setpgid resumed>) = 0 [pid 5048] restart_syscall(<... resuming interrupted clone ...> [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5244] <... write resumed>) = 4 [pid 5244] close(3 [pid 5245] <... openat resumed>) = 3 [pid 5048] <... restart_syscall resumed>) = 0 [pid 5245] write(3, "1000", 4 [pid 5244] <... close resumed>) = 0 [pid 5242] <... close resumed>) = 0 [pid 5245] <... write resumed>) = 4 [pid 5244] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5242] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5245] close(3 [pid 5244] <... openat resumed>) = 3 [pid 5242] <... openat resumed>) = 5 [pid 5245] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5245] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5244] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5242] exit_group(0 [pid 5245] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5242] <... exit_group resumed>) = ? [pid 5245] <... openat resumed>) = 4 [pid 5244] <... openat resumed>) = 4 [pid 5243] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\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] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] sendfile(4, 3, [122] [pid 5245] sendfile(4, 3, [122]./strace-static-x86_64: Process 5246 attached [ 70.192490][ T5243] syz-executor638 (5243): drop_caches: 3 [ 70.226511][ T5243] syz-executor638 (5243): drop_caches: 3 [pid 5242] +++ exited with 0 +++ [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5246 [pid 5246] set_robust_list(0x555556ffb660, 24) = 0 [pid 5050] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5246] write(3, "1000", 4 [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5247 attached [pid 5246] <... write resumed>) = 4 [pid 5243] <... write resumed>) = 2097152 [pid 5243] munmap(0x7fa7fde00000, 138412032 [pid 5247] set_robust_list(0x555556ffb660, 24 [pid 5246] close(3 [pid 5243] <... munmap resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555556ffb650) = 5247 [pid 5243] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5247] <... set_robust_list resumed>) = 0 [pid 5246] <... close resumed>) = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5246] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5243] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5247] <... prctl resumed>) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5246] <... openat resumed>) = 3 [pid 5246] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5247] <... openat resumed>) = 3 [pid 5246] <... openat resumed>) = 4 [pid 5247] write(3, "1000", 4) = 4 [pid 5246] sendfile(4, 3, [122] [ 70.288494][ T5244] syz-executor638 (5244): drop_caches: 3 [ 70.296625][ T5245] syz-executor638 (5245): drop_caches: 3 [pid 5247] close(3) = 0 [pid 5244] <... sendfile resumed> => [693], 571) = 571 [pid 5243] close(5 [pid 5247] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5244] memfd_create("syzkaller", 0 [pid 5247] <... openat resumed>) = 3 [pid 5247] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5247] sendfile(4, 3, [122] [pid 5243] <... close resumed>) = 0 [pid 5244] <... memfd_create resumed>) = 5 [pid 5243] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000) = 5 [pid 5245] <... sendfile resumed> => [693], 571) = 571 [pid 5245] memfd_create("syzkaller", 0 [pid 5243] exit_group(0) = ? [pid 5245] <... memfd_create resumed>) = 5 [pid 5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5243] +++ exited with 0 +++ [pid 5051] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5244] <... mmap resumed>) = 0x7fa7fde00000 [pid 5051] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5051] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 70.329990][ T5244] syz-executor638 (5244): drop_caches: 3 [ 70.355307][ T5245] syz-executor638 (5245): drop_caches: 3 [ 70.363650][ T5246] syz-executor638 (5246): drop_caches: 3 [pid 5051] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5248 attached , child_tidptr=0x555556ffb650) = 5248 [pid 5244] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5248] set_robust_list(0x555556ffb660, 24) = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5248] setpgid(0, 0) = 0 [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5248] write(3, "1000", 4 [pid 5245] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5248] <... write resumed>) = 4 [pid 5246] <... sendfile resumed> => [693], 571) = 571 [pid 5244] <... write resumed>) = 2097152 [pid 5248] close(3) = 0 [pid 5248] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5248] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5248] sendfile(4, 3, [122] [pid 5246] memfd_create("syzkaller", 0) = 5 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [ 70.391516][ T5247] syz-executor638 (5247): drop_caches: 3 [ 70.414371][ T5246] syz-executor638 (5246): drop_caches: 3 [pid 5245] <... write resumed>) = 2097152 [pid 5244] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5245] munmap(0x7fa7fde00000, 138412032 [pid 5244] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5247] <... sendfile resumed> => [693], 571) = 571 [pid 5245] <... munmap resumed>) = 0 [pid 5244] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5244] close(5 [pid 5245] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5247] memfd_create("syzkaller", 0 [pid 5246] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5247] <... memfd_create resumed>) = 5 [pid 5245] close(5 [pid 5244] <... close resumed>) = 0 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5244] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5247] <... mmap resumed>) = 0x7fa7fde00000 [pid 5246] <... write resumed>) = 2097152 [pid 5245] <... close resumed>) = 0 [pid 5244] <... openat resumed>) = 5 [pid 5244] exit_group(0) = ? [pid 5244] +++ exited with 0 +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5049] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5246] munmap(0x7fa7fde00000, 138412032 [pid 5245] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached [pid 5245] <... openat resumed>) = 5 [pid 5249] set_robust_list(0x555556ffb660, 24) = 0 [pid 5049] <... clone resumed>, child_tidptr=0x555556ffb650) = 5249 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] exit_group(0 [pid 5249] setpgid(0, 0 [pid 5245] <... exit_group resumed>) = ? [pid 5249] <... setpgid resumed>) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3) = 0 [pid 5249] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5249] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5249] sendfile(4, 3, [122] [pid 5246] <... munmap resumed>) = 0 [pid 5245] +++ exited with 0 +++ [pid 5052] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5052] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5052] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5246] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5250 attached [pid 5052] <... clone resumed>, child_tidptr=0x555556ffb650) = 5250 [pid 5246] close(5) = 0 [pid 5250] set_robust_list(0x555556ffb660, 24 [pid 5246] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|FASYNC, 000 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5246] <... openat resumed>) = 5 [pid 5246] exit_group(0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] <... exit_group resumed>) = ? [pid 5250] setpgid(0, 0) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5246] +++ exited with 0 +++ [pid 5048] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5048] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] write(3, "1000", 4) = 4 [pid 5048] <... clone resumed>, child_tidptr=0x555556ffb650) = 5251 ./strace-static-x86_64: Process 5251 attached [ 70.454336][ T5247] syz-executor638 (5247): drop_caches: 3 [ 70.480773][ T5248] syz-executor638 (5248): drop_caches: 3 [pid 5250] close(3 [pid 5247] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\xf5\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 [pid 5250] <... close resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/proc/partitions", O_RDONLY [pid 5251] set_robust_list(0x555556ffb660, 24 [pid 5250] <... openat resumed>) = 3 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY [pid 5251] <... prctl resumed>) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5250] <... openat resumed>) = 4 [pid 5250] sendfile(4, 3, [122] [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3) = 0 [pid 5251] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3 [pid 5251] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4 [pid 5251] sendfile(4, 3, [122] [pid 5247] <... write resumed>) = 2097152 [pid 5248] <... sendfile resumed> => [693], 571) = 571 [pid 5248] memfd_create("syzkaller", 0) = 5 [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa7fde00000 [pid 5247] munmap(0x7fa7fde00000, 138412032) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 70.562609][ T5248] syz-executor638 (5248): drop_caches: 3