./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor120898172

<...>
forked to background, child pid 3207
no interfaces have a carrier
[   26.742620][ T3208] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.751908][ T3208] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.99' (ECDSA) to the list of known hosts.
execve("./syz-executor120898172", ["./syz-executor120898172"], 0x7fff4781b590 /* 10 vars */) = 0
brk(NULL)                               = 0x55555589a000
brk(0x55555589ac40)                     = 0x55555589ac40
arch_prctl(ARCH_SET_FS, 0x55555589a300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor120898172", 4096) = 27
brk(0x5555558bbc40)                     = 0x5555558bbc40
brk(0x5555558bc000)                     = 0x5555558bc000
mprotect(0x7f7f2ac08000, 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
getpid()                                = 3628
openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3
write(3, "10000000000", 11)             = 11
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3
write(3, "20", 2)                       = 2
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
write(3, "100", 3)                      = 3
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3
write(3, "7 4 1 3", 7)                  = 7
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3
write(3, "3628", 4)                     = 4
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3629 attached
, child_tidptr=0x55555589a5d0) = 3629
[pid  3628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3630
./strace-static-x86_64: Process 3630 attached
[pid  3628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3629] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3630] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3629] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3631 attached
[pid  3630] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3629] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3629] close(3)                    = 0
[pid  3629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3632
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3628] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3631
[pid  3628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3631] <... openat resumed>)       = 3
[pid  3631] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3631] close(3)                    = 0
[pid  3628] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3633
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3634
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3635
[pid  3628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3630] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3632 attached
[pid  3630] close(3 <unfinished ...>
[pid  3628] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3636
[pid  3630] <... close resumed>)        = 0
./strace-static-x86_64: Process 3635 attached
[pid  3630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3635] setpgid(0, 0)               = 0
[pid  3630] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3637
./strace-static-x86_64: Process 3634 attached
./strace-static-x86_64: Process 3633 attached
[pid  3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3632] setpgid(0, 0)               = 0
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3635] write(3, "1000", 4)         = 4
[pid  3634] <... openat resumed>)       = 3
[pid  3632] <... openat resumed>)       = 3
[pid  3635] close(3 <unfinished ...>
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3635] <... close resumed>)        = 0
[pid  3634] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3635] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3634] close(3 <unfinished ...>
[pid  3635] <... memfd_create resumed>) = 3
[pid  3634] <... close resumed>)        = 0
[pid  3635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3632] write(3, "1000", 4 <unfinished ...>
[pid  3635] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3632] <... write resumed>)        = 4
./strace-static-x86_64: Process 3637 attached
[pid  3635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3634] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3638
[pid  3633] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3632] close(3 <unfinished ...>
[pid  3633] <... openat resumed>)       = 3
[pid  3632] <... close resumed>)        = 0
[pid  3633] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3632] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3636 attached
 <unfinished ...>
[pid  3637] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3635] <... write resumed>)        = 524288
[pid  3632] <... memfd_create resumed>) = 3
./strace-static-x86_64: Process 3638 attached
[pid  3637] <... prctl resumed>)        = 0
[pid  3633] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f2274d000
[pid  3637] setpgid(0, 0 <unfinished ...>
[pid  3633] close(3 <unfinished ...>
[pid  3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3638] setpgid(0, 0)               = 0
[pid  3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3638] write(3, "1000", 4 <unfinished ...>
[pid  3632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3638] <... write resumed>)        = 4
[pid  3637] <... setpgid resumed>)      = 0
[pid  3635] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3633] <... close resumed>)        = 0
[pid  3638] close(3 <unfinished ...>
[pid  3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3635] <... munmap resumed>)       = 0
[pid  3633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3638] <... close resumed>)        = 0
[pid  3636] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3635] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3638] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3635] <... openat resumed>)       = 4
[pid  3638] <... memfd_create resumed>) = 3
[pid  3637] <... openat resumed>)       = 3
[pid  3635] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3637] write(3, "1000", 4 <unfinished ...>
[pid  3636] <... openat resumed>)       = 3
[pid  3633] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3640
[pid  3632] <... write resumed>)        = 524288
[pid  3638] <... mmap resumed>)         = 0x7f7f2274d000
./strace-static-x86_64: Process 3640 attached
[pid  3638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3637] <... write resumed>)        = 4
[pid  3636] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3632] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3640] setpgid(0, 0)               = 0
[pid  3637] close(3 <unfinished ...>
[pid  3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3636] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3640] <... openat resumed>)       = 3
[pid  3637] <... close resumed>)        = 0
[pid  3636] close(3 <unfinished ...>
[pid  3632] <... munmap resumed>)       = 0
[pid  3640] write(3, "1000", 4 <unfinished ...>
[pid  3637] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3636] <... close resumed>)        = 0
[pid  3640] <... write resumed>)        = 4
[pid  3632] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3640] close(3)                    = 0
[pid  3640] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3637] <... memfd_create resumed>) = 3
[pid  3636] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3640] <... memfd_create resumed>) = 3
[pid  3637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3632] <... openat resumed>)       = 4
[pid  3640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f2274d000
[pid  3640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3637] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3636] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3641
[pid  3632] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3638] <... write resumed>)        = 524288
[pid  3635] <... ioctl resumed>)        = 0
[pid  3640] <... write resumed>)        = 524288
[pid  3638] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3635] close(3./strace-static-x86_64: Process 3641 attached
 <unfinished ...>
[pid  3638] <... munmap resumed>)       = 0
[pid  3635] <... close resumed>)        = 0
[pid  3641] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3638] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3635] mkdir("./file0", 0777 <unfinished ...>
[pid  3641] <... prctl resumed>)        = 0
[pid  3638] <... openat resumed>)       = 4
[pid  3635] <... mkdir resumed>)        = 0
[pid  3641] setpgid(0, 0 <unfinished ...>
[pid  3638] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
syzkaller login: [   50.680509][ T3635] loop2: detected capacity change from 0 to 1024
[   50.711775][ T3632] loop0: detected capacity change from 0 to 1024
[   50.717601][ T3638] loop4: detected capacity change from 0 to 1024
[pid  3635] mount("/dev/loop2", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3641] <... setpgid resumed>)      = 0
[pid  3637] <... write resumed>)        = 524288
[pid  3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3641] write(3, "1000", 4)         = 4
[pid  3641] close(3)                    = 0
[pid  3641] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3640] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3641] <... memfd_create resumed>) = 3
[pid  3640] <... munmap resumed>)       = 0
[pid  3641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3640] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3641] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3640] <... openat resumed>)       = 4
[pid  3641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3640] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3637] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3640] <... ioctl resumed>)        = 0
[pid  3638] <... ioctl resumed>)        = 0
[pid  3637] <... munmap resumed>)       = 0
[pid  3632] <... ioctl resumed>)        = 0
[pid  3638] close(3)                    = 0
[pid  3638] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3637] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3632] close(3 <unfinished ...>
[pid  3638] mount("/dev/loop4", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3635] <... mount resumed>)        = 0
[pid  3637] <... openat resumed>)       = 4
[pid  3635] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  3632] <... close resumed>)        = 0
[pid  3641] <... write resumed>)        = 524288
[pid  3637] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3635] <... openat resumed>)       = 3
[pid  3632] mkdir("./file0", 0777 <unfinished ...>
[pid  3641] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3638] <... mount resumed>)        = 0
[pid  3635] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3641] <... munmap resumed>)       = 0
[pid  3638] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  3635] <... ioctl resumed>)        = 0
[pid  3641] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3638] <... openat resumed>)       = 3
[pid  3635] close(4 <unfinished ...>
[pid  3641] <... openat resumed>)       = 4
[pid  3638] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3635] <... close resumed>)        = 0
[pid  3641] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3638] <... ioctl resumed>)        = 0
[pid  3635] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3638] close(4 <unfinished ...>
[pid  3637] <... ioctl resumed>)        = 0
[pid  3635] <... openat resumed>)       = 4
[pid  3632] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3638] <... close resumed>)        = 0
[pid  3635] ioctl(4, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3638] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3640] close(3 <unfinished ...>
[pid  3638] <... openat resumed>)       = 4
[pid  3632] mount("/dev/loop0", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3640] <... close resumed>)        = 0
[pid  3638] ioctl(4, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3640] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3640] mount("/dev/loop3", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3637] close(3)                    = 0
[pid  3641] <... ioctl resumed>)        = 0
[pid  3637] mkdir("./file0", 0777 <unfinished ...>
[pid  3641] close(3 <unfinished ...>
[pid  3640] <... mount resumed>)        = 0
[pid  3637] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3632] <... mount resumed>)        = 0
[pid  3641] <... close resumed>)        = 0
[pid  3640] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  3637] mount("/dev/loop1", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3641] mkdir("./file0", 0777 <unfinished ...>
[pid  3640] <... openat resumed>)       = 3
[pid  3641] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3640] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3641] mount("/dev/loop5", "./file0", "hfsplus", 0, "" <unfinished ...>
[pid  3640] <... ioctl resumed>)        = 0
[pid  3632] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  3640] close(4 <unfinished ...>
[pid  3632] <... openat resumed>)       = 3
[pid  3640] <... close resumed>)        = 0
[pid  3632] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3640] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3632] <... ioctl resumed>)        = 0
[pid  3640] <... openat resumed>)       = 4
[pid  3640] ioctl(4, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3632] close(4)                    = 0
[pid  3637] <... mount resumed>)        = 0
[pid  3632] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3637] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  3632] <... openat resumed>)       = 4
[pid  3637] <... openat resumed>)       = 3
[pid  3632] ioctl(4, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3637] ioctl(4, LOOP_CLR_FD)       = 0
[pid  3637] close(4)                    = 0
[pid  3637] openat(AT_FDCWD, "/dev/loop5", O_RDONLY) = 4
[   50.723341][ T3639] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[   50.736828][ T3640] loop3: detected capacity change from 0 to 1024
[   50.760000][ T3637] loop1: detected capacity change from 0 to 1024
[   50.763071][ T3641] loop5: detected capacity change from 0 to 1024
[pid  3637] ioctl(4, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3640] <... ioctl resumed>)        = 0
[pid  3638] <... ioctl resumed>)        = 0
[pid  3635] <... ioctl resumed>)        = 0
[   50.818480][   T41] ==================================================================
[   50.826573][   T41] BUG: KASAN: slab-out-of-bounds in _copy_to_iter+0xb55/0x1140
[   50.834155][   T41] Write of size 2048 at addr ffff88801dbb1000 by task kworker/u4:2/41
[   50.842320][   T41] 
[   50.844819][   T41] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0
[   50.854814][   T41] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   50.864982][   T41] Workqueue: loop5 loop_rootcg_workfn
[   50.870454][   T41] Call Trace:
[   50.873738][   T41]  <TASK>
[   50.876909][   T41]  dump_stack_lvl+0xd1/0x138
[   50.881515][   T41]  print_report+0x15e/0x45d
[   50.886039][   T41]  ? __phys_addr+0xc8/0x140
[   50.890565][   T41]  ? _copy_to_iter+0xb55/0x1140
[   50.895442][   T41]  kasan_report+0xbf/0x1f0
[   50.899884][   T41]  ? _copy_to_iter+0xb55/0x1140
[   50.904746][   T41]  kasan_check_range+0x141/0x190
[   50.909700][   T41]  memcpy+0x3d/0x60
[   50.913528][   T41]  _copy_to_iter+0xb55/0x1140
[   50.918225][   T41]  ? _copy_from_iter+0xf40/0xf40
[   50.923178][   T41]  ? folio_flags.constprop.0+0x53/0x150
[   50.928747][   T41]  ? shmem_get_folio_gfp+0x1026/0x1a60
[   50.934228][   T41]  ? page_copy_sane+0x28f/0x410
[   50.939087][   T41]  copy_page_to_iter+0xe0/0xa20
[   50.943951][   T41]  shmem_file_read_iter+0x37e/0xa50
[   50.949181][   T41]  ? shmem_read_mapping_page_gfp+0x230/0x230
[   50.955188][   T41]  ? mark_lock.part.0+0xee/0x1910
[   50.960235][   T41]  do_iter_readv_writev+0x2e0/0x3b0
[   50.965447][   T41]  ? lock_chain_count+0x20/0x20
[   50.970321][   T41]  ? generic_copy_file_range+0x1d0/0x1d0
[   50.975970][   T41]  ? security_file_permission+0xaf/0xd0
[   50.981546][   T41]  do_iter_read+0x2f2/0x750
[   50.986072][   T41]  ? mark_held_locks+0x9f/0xe0
[   50.990867][   T41]  ? rwlock_bug.part.0+0x90/0x90
[   50.995809][   T41]  vfs_iter_read+0x74/0xa0
[   51.000244][   T41]  loop_process_work+0x1592/0x2070
[   51.005373][   T41]  ? loop_queue_rq+0x11f0/0x11f0
[   51.010418][   T41]  ? lock_release+0x810/0x810
[   51.015123][   T41]  ? lock_downgrade+0x6e0/0x6e0
[   51.020008][   T41]  process_one_work+0x9bf/0x1710
[   51.024954][   T41]  ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[   51.030329][   T41]  ? rwlock_bug.part.0+0x90/0x90
[   51.035271][   T41]  ? _raw_spin_lock_irq+0x45/0x50
[   51.040308][   T41]  worker_thread+0x669/0x1090
[   51.045013][   T41]  ? process_one_work+0x1710/0x1710
[   51.050219][   T41]  kthread+0x2e8/0x3a0
[   51.054291][   T41]  ? kthread_complete_and_exit+0x40/0x40
[   51.059936][   T41]  ret_from_fork+0x1f/0x30
[   51.064376][   T41]  </TASK>
[   51.067397][   T41] 
[   51.069733][   T41] Allocated by task 3641:
[   51.074065][   T41]  kasan_save_stack+0x22/0x40
[   51.078769][   T41]  kasan_set_track+0x25/0x30
[   51.083373][   T41]  __kasan_kmalloc+0xa5/0xb0
[   51.087970][   T41]  __kmalloc+0x5a/0xd0
[   51.092046][   T41]  hfsplus_read_wrapper+0x407/0xfd0
[   51.097262][   T41]  hfsplus_fill_super+0x31a/0x1a30
[   51.102393][   T41]  mount_bdev+0x351/0x410
[   51.106738][   T41]  legacy_get_tree+0x109/0x220
[   51.111505][   T41]  vfs_get_tree+0x8d/0x2f0
[   51.115931][   T41]  path_mount+0x132a/0x1e20
[   51.120453][   T41]  __x64_sys_mount+0x283/0x300
[   51.125232][   T41]  do_syscall_64+0x39/0xb0
[   51.129666][   T41]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   51.135584][   T41] 
[   51.137907][   T41] The buggy address belongs to the object at ffff88801dbb1000
[   51.137907][   T41]  which belongs to the cache kmalloc-512 of size 512
[   51.152129][   T41] The buggy address is located 0 bytes inside of
[   51.152129][   T41]  512-byte region [ffff88801dbb1000, ffff88801dbb1200)
[   51.165228][   T41] 
[   51.167557][   T41] The buggy address belongs to the physical page:
[   51.173964][   T41] page:ffffea000076ec00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1dbb0
[   51.184113][   T41] head:ffffea000076ec00 order:2 compound_mapcount:0 compound_pincount:0
[   51.192439][   T41] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[   51.200432][   T41] raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888012041c80
[   51.209023][   T41] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[   51.217606][   T41] page dumped because: kasan: bad access detected
[   51.224023][   T41] page_owner tracks the page as allocated
[   51.229735][   T41] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 722, tgid 722 (kworker/u4:1), ts 6148153635, free_ts 0
[   51.250064][   T41]  get_page_from_freelist+0x10b5/0x2d50
[   51.255645][   T41]  __alloc_pages+0x1cb/0x5b0
[   51.260358][   T41]  alloc_pages+0x1aa/0x270
[   51.264787][   T41]  allocate_slab+0x25f/0x350
[   51.269381][   T41]  ___slab_alloc+0xa91/0x1400
[   51.274069][   T41]  __slab_alloc.constprop.0+0x56/0xa0
[   51.279534][   T41]  __kmem_cache_alloc_node+0x199/0x3e0
[   51.285009][   T41]  kmalloc_trace+0x26/0x60
[   51.289439][   T41]  alloc_bprm+0x51/0x900
[   51.293696][   T41]  kernel_execve+0xaf/0x500
[   51.298203][   T41]  call_usermodehelper_exec_async+0x2e7/0x580
[   51.304277][   T41]  ret_from_fork+0x1f/0x30
[   51.308704][   T41] page_owner free stack trace missing
[   51.314075][   T41] 
[   51.316403][   T41] Memory state around the buggy address:
[   51.322028][   T41]  ffff88801dbb1100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   51.330093][   T41]  ffff88801dbb1180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   51.338156][   T41] >ffff88801dbb1200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   51.346216][   T41]                    ^
[   51.350278][   T41]  ffff88801dbb1280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   51.358344][   T41]  ffff88801dbb1300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[pid  3640] exit_group(0 <unfinished ...>
[pid  3638] exit_group(0 <unfinished ...>
[pid  3637] <... ioctl resumed>)        = 0
[pid  3635] exit_group(0 <unfinished ...>
[pid  3632] <... ioctl resumed>)        = 0
[pid  3640] <... exit_group resumed>)   = ?
[pid  3638] <... exit_group resumed>)   = ?
[pid  3635] <... exit_group resumed>)   = ?
[pid  3640] +++ exited with 0 +++
[pid  3638] +++ exited with 0 +++
[pid  3635] +++ exited with 0 +++
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3631] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3631] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3634] <... openat resumed>)       = 3
[pid  3631] <... ioctl resumed>)        = 0
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3631] close(3 <unfinished ...>
[pid  3634] <... ioctl resumed>)        = 0
[pid  3631] <... close resumed>)        = 0
[pid  3634] close(3 <unfinished ...>
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3634] <... close resumed>)        = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3643
[pid  3634] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3644
./strace-static-x86_64: Process 3644 attached
[pid  3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3644] setpgid(0, 0)               = 0
[pid  3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3644] write(3, "1000", 4./strace-static-x86_64: Process 3643 attached
)         = 4
[pid  3644] close(3 <unfinished ...>
[pid  3643] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3644] <... close resumed>)        = 0
[pid  3643] <... prctl resumed>)        = 0
[pid  3644] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3643] setpgid(0, 0 <unfinished ...>
[pid  3644] <... memfd_create resumed>) = 3
[pid  3643] <... setpgid resumed>)      = 0
[pid  3644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3644] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3643] <... openat resumed>)       = 3
[pid  3644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3643] write(3, "1000", 4)         = 4
[pid  3643] close(3)                    = 0
[pid  3643] memfd_create("syzkaller", 0) = 3
[pid  3643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f2274d000
[pid  3643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid  3644] <... write resumed>)        = 524288
[pid  3644] munmap(0x7f7f2274d000, 524288) = 0
[pid  3644] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3643] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3644] <... openat resumed>)       = 4
[pid  3643] <... munmap resumed>)       = 0
[pid  3644] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3643] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3644] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3643] <... openat resumed>)       = 4
[pid  3644] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3643] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3644] <... ioctl resumed>)        = 0
[pid  3643] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3643] ioctl(4, LOOP_CLR_FD)       = 0
[pid  3644] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  3644] close(4 <unfinished ...>
[pid  3643] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3644] <... close resumed>)        = 0
[pid  3643] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3644] close(3 <unfinished ...>
[pid  3643] close(4 <unfinished ...>
[pid  3644] <... close resumed>)        = 0
[pid  3643] <... close resumed>)        = 0
[pid  3644] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3643] close(3 <unfinished ...>
[pid  3644] <... openat resumed>)       = 3
[pid  3643] <... close resumed>)        = 0
[pid  3644] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3643] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3644] <... ioctl resumed>)        = 0
[pid  3643] <... openat resumed>)       = 3
[pid  3644] exit_group(0 <unfinished ...>
[pid  3643] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3644] <... exit_group resumed>)   = ?
[pid  3643] <... ioctl resumed>)        = 0
[pid  3644] +++ exited with 0 +++
[pid  3643] exit_group(0)               = ?
[pid  3643] +++ exited with 0 +++
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3634] <... openat resumed>)       = 3
[pid  3631] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3631] <... restart_syscall resumed>) = 0
[pid  3634] <... ioctl resumed>)        = 0
[pid  3634] close(3)                    = 0
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3631] <... openat resumed>)       = 3
[pid  3631] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3634] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3645
[pid  3631] <... ioctl resumed>)        = 0
[pid  3631] close(3)                    = 0
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3646
./strace-static-x86_64: Process 3645 attached
[pid  3645] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3646 attached
 <unfinished ...>
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3645] <... prctl resumed>)        = 0
[pid  3645] setpgid(0, 0 <unfinished ...>
[pid  3646] <... prctl resumed>)        = 0
[pid  3645] <... setpgid resumed>)      = 0
[pid  3646] setpgid(0, 0 <unfinished ...>
[pid  3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3646] <... setpgid resumed>)      = 0
[pid  3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3645] <... openat resumed>)       = 3
[pid  3646] <... openat resumed>)       = 3
[pid  3645] write(3, "1000", 4 <unfinished ...>
[pid  3646] write(3, "1000", 4 <unfinished ...>
[pid  3645] <... write resumed>)        = 4
[pid  3646] <... write resumed>)        = 4
[pid  3645] close(3 <unfinished ...>
[pid  3646] close(3 <unfinished ...>
[pid  3645] <... close resumed>)        = 0
[pid  3646] <... close resumed>)        = 0
[pid  3645] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3646] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3645] <... memfd_create resumed>) = 3
[pid  3646] <... memfd_create resumed>) = 3
[pid  3645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3645] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3646] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid  3645] <... write resumed>)        = 524288
[pid  3645] munmap(0x7f7f2274d000, 524288) = 0
[pid  3646] munmap(0x7f7f2274d000, 524288) = 0
[pid  3645] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3646] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3645] <... openat resumed>)       = 4
[pid  3646] <... openat resumed>)       = 4
[pid  3645] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3646] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3645] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3646] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3646] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3645] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3646] <... ioctl resumed>)        = 0
[pid  3645] <... ioctl resumed>)        = 0
[pid  3646] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3645] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3646] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3645] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3646] close(4 <unfinished ...>
[pid  3645] close(4 <unfinished ...>
[pid  3646] <... close resumed>)        = 0
[pid  3645] <... close resumed>)        = 0
[pid  3646] close(3 <unfinished ...>
[pid  3645] close(3 <unfinished ...>
[pid  3646] <... close resumed>)        = 0
[pid  3645] <... close resumed>)        = 0
[pid  3646] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3645] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3646] <... openat resumed>)       = 3
[pid  3645] <... openat resumed>)       = 3
[pid  3646] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3645] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3646] <... ioctl resumed>)        = 0
[pid  3645] <... ioctl resumed>)        = 0
[pid  3646] exit_group(0 <unfinished ...>
[pid  3645] exit_group(0 <unfinished ...>
[pid  3646] <... exit_group resumed>)   = ?
[pid  3645] <... exit_group resumed>)   = ?
[pid  3646] +++ exited with 0 +++
[pid  3645] +++ exited with 0 +++
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3634] <... openat resumed>)       = 3
[pid  3631] <... openat resumed>)       = 3
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3631] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3634] <... ioctl resumed>)        = 0
[pid  3631] <... ioctl resumed>)        = 0
[pid  3634] close(3 <unfinished ...>
[pid  3631] close(3 <unfinished ...>
[pid  3634] <... close resumed>)        = 0
[pid  3631] <... close resumed>)        = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3634] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3647
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3648
./strace-static-x86_64: Process 3648 attached
[pid  3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3648] setpgid(0, 0./strace-static-x86_64: Process 3647 attached
)               = 0
[pid  3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3647] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3648] <... openat resumed>)       = 3
[pid  3647] <... prctl resumed>)        = 0
[pid  3648] write(3, "1000", 4 <unfinished ...>
[pid  3647] setpgid(0, 0 <unfinished ...>
[pid  3648] <... write resumed>)        = 4
[pid  3647] <... setpgid resumed>)      = 0
[pid  3648] close(3 <unfinished ...>
[pid  3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3648] <... close resumed>)        = 0
[pid  3647] <... openat resumed>)       = 3
[pid  3648] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3647] write(3, "1000", 4 <unfinished ...>
[pid  3648] <... memfd_create resumed>) = 3
[pid  3647] <... write resumed>)        = 4
[pid  3648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3647] close(3 <unfinished ...>
[pid  3648] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3647] <... close resumed>)        = 0
[pid  3648] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3647] memfd_create("syzkaller", 0) = 3
[pid  3647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f2274d000
[pid  3647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid  3633] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3633] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3648] <... write resumed>)        = 524288
[pid  3633] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3647] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3633] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3648] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3647] <... munmap resumed>)       = 0
[pid  3633] <... ioctl resumed>)        = 0
[pid  3648] <... munmap resumed>)       = 0
[pid  3647] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3633] close(3 <unfinished ...>
[pid  3648] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3647] <... openat resumed>)       = 4
[pid  3633] <... close resumed>)        = 0
[pid  3648] <... openat resumed>)       = 4
[pid  3647] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3648] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3647] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3648] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3647] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3633] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3649
[pid  3648] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3647] <... ioctl resumed>)        = 0
[pid  3648] <... ioctl resumed>)        = 0
[pid  3647] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  3648] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3647] close(4 <unfinished ...>
[pid  3648] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3647] <... close resumed>)        = 0
[pid  3648] close(4 <unfinished ...>
[pid  3647] close(3 <unfinished ...>
[pid  3648] <... close resumed>)        = 0
[pid  3647] <... close resumed>)        = 0
[pid  3648] close(3 <unfinished ...>
[pid  3647] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3648] <... close resumed>)        = 0
[pid  3647] <... openat resumed>)       = 3
[pid  3648] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3647] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3648] <... openat resumed>)       = 3
[pid  3647] <... ioctl resumed>)        = 0
[pid  3648] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3647] exit_group(0 <unfinished ...>
[pid  3648] <... ioctl resumed>)        = 0
[pid  3647] <... exit_group resumed>)   = ?
[pid  3648] exit_group(0 <unfinished ...>
[pid  3647] +++ exited with 0 +++
[pid  3648] <... exit_group resumed>)   = ?
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3648] +++ exited with 0 +++
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3634] ioctl(3, LOOP_CLR_FD)       = 0
[pid  3634] close(3)                    = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3650
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3631] ioctl(3, LOOP_CLR_FD)       = 0
[pid  3631] close(3)                    = 0
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3651
./strace-static-x86_64: Process 3650 attached
[pid  3650] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3651 attached
 <unfinished ...>
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3650] <... prctl resumed>)        = 0
[pid  3651] setpgid(0, 0 <unfinished ...>
[pid  3650] setpgid(0, 0 <unfinished ...>
[pid  3651] <... setpgid resumed>)      = 0
[pid  3650] <... setpgid resumed>)      = 0
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3651] <... openat resumed>)       = 3
[pid  3650] <... openat resumed>)       = 3
[pid  3651] write(3, "1000", 4 <unfinished ...>
[pid  3650] write(3, "1000", 4 <unfinished ...>
[pid  3651] <... write resumed>)        = 4
[pid  3650] <... write resumed>)        = 4
[pid  3651] close(3 <unfinished ...>
[pid  3650] close(3 <unfinished ...>
[pid  3651] <... close resumed>)        = 0
[pid  3650] <... close resumed>)        = 0
[pid  3651] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3650] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3651] <... memfd_create resumed>) = 3
[pid  3650] <... memfd_create resumed>) = 3
[pid  3651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3651] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3650] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3651] <... write resumed>)        = 524288
[pid  3651] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3650] <... write resumed>)        = 524288
[pid  3651] <... munmap resumed>)       = 0
[pid  3650] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3651] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3650] <... munmap resumed>)       = 0
[pid  3651] <... openat resumed>)       = 4
[pid  3650] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3651] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3650] <... openat resumed>)       = 4
[pid  3651] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3650] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3651] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3650] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3651] <... ioctl resumed>)        = 0
[pid  3650] ioctl(4, LOOP_CLR_FD)       = 0
[pid  3651] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  3650] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3651] close(4 <unfinished ...>
[pid  3650] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3651] <... close resumed>)        = 0
[pid  3650] close(4 <unfinished ...>
[pid  3651] close(3 <unfinished ...>
[pid  3650] <... close resumed>)        = 0
[pid  3651] <... close resumed>)        = 0
[pid  3650] close(3 <unfinished ...>
[pid  3651] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3650] <... close resumed>)        = 0
[pid  3651] <... openat resumed>)       = 3
[pid  3650] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3651] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3650] <... openat resumed>)       = 3
[pid  3651] <... ioctl resumed>)        = 0
[pid  3650] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3651] exit_group(0 <unfinished ...>
[pid  3650] <... ioctl resumed>)        = 0
[pid  3651] <... exit_group resumed>)   = ?
[pid  3650] exit_group(0 <unfinished ...>
[pid  3651] +++ exited with 0 +++
[pid  3650] <... exit_group resumed>)   = ?
[pid  3650] +++ exited with 0 +++
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3631] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3631] ioctl(3, LOOP_CLR_FD)       = 0
[pid  3631] close(3)                    = 0
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3634] <... openat resumed>)       = 3
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3653
[pid  3634] <... ioctl resumed>)        = 0
[pid  3634] close(3)                    = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3654
./strace-static-x86_64: Process 3653 attached
[pid  3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3653] setpgid(0, 0)               = 0
[pid  3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3654 attached
) = 3
[pid  3654] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3653] write(3, "1000", 4 <unfinished ...>
[pid  3654] <... prctl resumed>)        = 0
[pid  3653] <... write resumed>)        = 4
[pid  3654] setpgid(0, 0 <unfinished ...>
[pid  3653] close(3 <unfinished ...>
[pid  3654] <... setpgid resumed>)      = 0
[pid  3653] <... close resumed>)        = 0
[pid  3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3653] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3654] <... openat resumed>)       = 3
[pid  3653] <... memfd_create resumed>) = 3
[pid  3654] write(3, "1000", 4 <unfinished ...>
[pid  3653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3654] <... write resumed>)        = 4
[pid  3653] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3654] close(3 <unfinished ...>
[pid  3653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3654] <... close resumed>)        = 0
[pid  3654] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3653] <... write resumed>)        = 524288
[pid  3654] <... memfd_create resumed>) = 3
[pid  3654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f2274d000
[pid  3654] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid  3653] munmap(0x7f7f2274d000, 524288) = 0
[pid  3653] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  3653] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid  3653] ioctl(4, LOOP_CLR_FD)       = 0
[pid  3654] munmap(0x7f7f2274d000, 524288) = 0
[pid  3654] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3653] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3654] <... openat resumed>)       = 4
[pid  3653] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3654] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3653] close(4 <unfinished ...>
[pid  3654] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3653] <... close resumed>)        = 0
[pid  3654] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3653] close(3 <unfinished ...>
[pid  3654] <... ioctl resumed>)        = 0
[pid  3653] <... close resumed>)        = 0
[pid  3653] openat(AT_FDCWD, "/dev/loop5", O_RDONLY) = 3
[pid  3653] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048) = 0
[pid  3654] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3653] exit_group(0 <unfinished ...>
[pid  3654] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3653] <... exit_group resumed>)   = ?
[pid  3654] close(4 <unfinished ...>
[pid  3653] +++ exited with 0 +++
[pid  3654] <... close resumed>)        = 0
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3654] close(3)                    = 0
[pid  3654] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3654] <... openat resumed>)       = 3
[pid  3631] <... openat resumed>)       = 3
[pid  3654] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3631] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3654] <... ioctl resumed>)        = 0
[pid  3631] <... ioctl resumed>)        = 0
[pid  3654] exit_group(0 <unfinished ...>
[pid  3631] close(3 <unfinished ...>
[pid  3654] <... exit_group resumed>)   = ?
[pid  3631] <... close resumed>)        = 0
[pid  3654] +++ exited with 0 +++
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3656
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3634] ioctl(3, LOOP_CLR_FD)       = 0
[pid  3634] close(3)                    = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3657
./strace-static-x86_64: Process 3656 attached
./strace-static-x86_64: Process 3657 attached
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3657] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3656] <... prctl resumed>)        = 0
[pid  3657] <... prctl resumed>)        = 0
[pid  3656] setpgid(0, 0 <unfinished ...>
[pid  3657] setpgid(0, 0 <unfinished ...>
[pid  3656] <... setpgid resumed>)      = 0
[pid  3657] <... setpgid resumed>)      = 0
[pid  3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3656] <... openat resumed>)       = 3
[pid  3657] <... openat resumed>)       = 3
[pid  3656] write(3, "1000", 4 <unfinished ...>
[pid  3657] write(3, "1000", 4 <unfinished ...>
[pid  3656] <... write resumed>)        = 4
[pid  3657] <... write resumed>)        = 4
[pid  3656] close(3 <unfinished ...>
[pid  3657] close(3 <unfinished ...>
[pid  3656] <... close resumed>)        = 0
[pid  3657] <... close resumed>)        = 0
[pid  3656] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3657] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3656] <... memfd_create resumed>) = 3
[pid  3657] <... memfd_create resumed>) = 3
[pid  3656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3656] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3657] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3656] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid  3656] <... write resumed>)        = 524288
[pid  3657] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3656] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3657] <... munmap resumed>)       = 0
[pid  3656] <... munmap resumed>)       = 0
[pid  3657] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3656] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3657] <... openat resumed>)       = 4
[pid  3656] <... openat resumed>)       = 4
[pid  3657] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3656] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3657] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3656] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3657] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3656] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3657] <... ioctl resumed>)        = 0
[pid  3656] <... ioctl resumed>)        = 0
[pid  3657] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3656] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3657] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3656] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3657] close(4 <unfinished ...>
[pid  3656] close(4 <unfinished ...>
[pid  3657] <... close resumed>)        = 0
[pid  3656] <... close resumed>)        = 0
[pid  3657] close(3 <unfinished ...>
[pid  3656] close(3 <unfinished ...>
[pid  3657] <... close resumed>)        = 0
[pid  3656] <... close resumed>)        = 0
[pid  3657] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3656] openat(AT_FDCWD, "/dev/loop5", O_RDONLY <unfinished ...>
[pid  3657] <... openat resumed>)       = 3
[pid  3656] <... openat resumed>)       = 3
[pid  3657] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3656] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3657] <... ioctl resumed>)        = 0
[pid  3656] <... ioctl resumed>)        = 0
[pid  3657] exit_group(0 <unfinished ...>
[pid  3656] exit_group(0 <unfinished ...>
[pid  3657] <... exit_group resumed>)   = ?
[pid  3656] <... exit_group resumed>)   = ?
[pid  3657] +++ exited with 0 +++
[pid  3656] +++ exited with 0 +++
[pid  3634] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3634] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3631] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3634] <... restart_syscall resumed>) = 0
[pid  3631] <... restart_syscall resumed>) = 0
[pid  3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3631] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3634] <... openat resumed>)       = 3
[pid  3631] <... openat resumed>)       = 3
[pid  3634] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3631] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3634] <... ioctl resumed>)        = 0
[pid  3631] <... ioctl resumed>)        = 0
[pid  3634] close(3 <unfinished ...>
[pid  3631] close(3 <unfinished ...>
[pid  3634] <... close resumed>)        = 0
[pid  3631] <... close resumed>)        = 0
[pid  3634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3637] exit_group(0 <unfinished ...>
[pid  3632] exit_group(0 <unfinished ...>
[pid  3637] <... exit_group resumed>)   = ?
[pid  3634] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3658
[pid  3632] <... exit_group resumed>)   = ?
[pid  3631] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3659
[pid  3637] +++ exited with 0 +++
[pid  3632] +++ exited with 0 +++
[pid  3630] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3629] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3630] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3629] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3630] <... openat resumed>)       = 3
[pid  3629] <... openat resumed>)       = 3
[pid  3630] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3629] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3630] <... ioctl resumed>)        = 0
[pid  3629] <... ioctl resumed>)        = 0
[pid  3630] close(3 <unfinished ...>
[pid  3629] close(3 <unfinished ...>
[pid  3630] <... close resumed>)        = 0
[pid  3629] <... close resumed>)        = 0
[pid  3630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3630] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3660
[pid  3629] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3661
./strace-static-x86_64: Process 3661 attached
[pid  3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3661] setpgid(0, 0)               = 0
[pid  3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3660 attached
) = 3
[pid  3661] write(3, "1000", 4 <unfinished ...>
[pid  3660] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3661] <... write resumed>)        = 4
[pid  3660] <... prctl resumed>)        = 0
[pid  3661] close(3 <unfinished ...>
[pid  3660] setpgid(0, 0 <unfinished ...>
[pid  3661] <... close resumed>)        = 0
[pid  3660] <... setpgid resumed>)      = 0
[pid  3661] memfd_create("syzkaller", 0 <unfinished ...>
[pid  3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3661] <... memfd_create resumed>) = 3
[pid  3660] <... openat resumed>)       = 3
[pid  3661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3660] write(3, "1000", 4 <unfinished ...>
[pid  3661] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3660] <... write resumed>)        = 4
[pid  3661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 <unfinished ...>
[pid  3660] close(3 <unfinished ...>
[pid  3661] <... write resumed>)        = 524288
[pid  3660] <... close resumed>)        = 0
[pid  3660] memfd_create("syzkaller", 0) = 3
[pid  3660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  3661] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3660] <... mmap resumed>)         = 0x7f7f2274d000
[pid  3661] <... munmap resumed>)       = 0
[pid  3660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 3659 attached
./strace-static-x86_64: Process 3658 attached
./strace-static-x86_64: Process 3649 attached
) = 524288
[pid  3661] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3659] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3659] <... prctl resumed>)        = 0
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3649] <... prctl resumed>)        = 0
[pid  3661] <... openat resumed>)       = 4
[pid  3659] setpgid(0, 0 <unfinished ...>
[pid  3658] <... prctl resumed>)        = 0
[pid  3649] setpgid(0, 0 <unfinished ...>
[pid  3661] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3659] <... setpgid resumed>)      = 0
[pid  3658] setpgid(0, 0 <unfinished ...>
[pid  3649] <... setpgid resumed>)      = 0
[pid  3661] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3661] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3660] munmap(0x7f7f2274d000, 524288 <unfinished ...>
[pid  3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3658] <... setpgid resumed>)      = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3661] <... ioctl resumed>)        = 0
[pid  3660] <... munmap resumed>)       = 0
[pid  3659] <... openat resumed>)       = 3
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3649] <... openat resumed>)       = 3
[pid  3660] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[   51.366402][   T41] ==================================================================
[pid  3659] write(3, "1000", 4 <unfinished ...>
[pid  3658] <... openat resumed>)       = 3
[pid  3649] write(3, "1000", 4 <unfinished ...>
[pid  3660] <... openat resumed>)       = 4
[pid  3659] <... write resumed>)        = 4
[pid  3658] write(3, "1000", 4 <unfinished ...>
[pid  3649] <... write resumed>)        = 4
[pid  3661] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3660] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3659] close(3 <unfinished ...>
[pid  3658] <... write resumed>)        = 4
[pid  3649] close(3 <unfinished ...>
[pid  3661] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3660] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3659] <... close resumed>)        = 0
[pid  3661] close(4 <unfinished ...>
[pid  3660] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  3661] <... close resumed>)        = 0
[pid  3660] <... ioctl resumed>)        = 0
[pid  3661] close(3)                    = 0
[pid  3661] openat(AT_FDCWD, "/dev/loop5", O_RDONLY) = 3
[pid  3661] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3660] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  3661] <... ioctl resumed>)        = 0
[pid  3660] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  3661] exit_group(0 <unfinished ...>
[   51.421156][   T41] Kernel panic - not syncing: panic_on_warn set ...
[   51.427774][   T41] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0
[   51.437933][   T41] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   51.447987][   T41] Workqueue: loop5 loop_rootcg_workfn
[   51.453373][   T41] Call Trace:
[   51.456656][   T41]  <TASK>
[   51.459591][   T41]  dump_stack_lvl+0xd1/0x138
[   51.464202][   T41]  panic+0x2cc/0x626
[pid  3660] close(4 <unfinished ...>
[pid  3661] <... exit_group resumed>)   = ?
[pid  3660] <... close resumed>)        = 0
[pid  3661] +++ exited with 0 +++
[pid  3660] close(3)                    = 0
[pid  3629] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3660] openat(AT_FDCWD, "/dev/loop5", O_RDONLY) = 3
[pid  3660] ioctl(3, LOOP_SET_BLOCK_SIZE, 2048 <unfinished ...>
[pid  3629] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3660] <... ioctl resumed>)        = 0
[pid  3629] <... openat resumed>)       = 3
[pid  3660] exit_group(0 <unfinished ...>
[pid  3629] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3660] <... exit_group resumed>)   = ?
[pid  3629] <... ioctl resumed>)        = 0
[pid  3660] +++ exited with 0 +++
[pid  3629] close(3 <unfinished ...>
[pid  3630] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3629] <... close resumed>)        = 0
[pid  3629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555589a5d0) = 3665
[pid  3630] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3630] ioctl(3, LOOP_CLR_FD)       = 0
[pid  3630] close(3)                    = 0
[pid  3630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3665 attached
 <unfinished ...>
[pid  3665] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3630] <... clone resumed>, child_tidptr=0x55555589a5d0) = 3666
[pid  3665] <... prctl resumed>)        = 0
[pid  3665] setpgid(0, 0)               = 0
[   51.468127][   T41]  ? panic_print_sys_info.part.0+0x110/0x110
[   51.474135][   T41]  ? preempt_schedule_common+0x59/0xc0
[   51.479608][   T41]  ? preempt_schedule_thunk+0x1a/0x1c
[   51.485015][   T41]  end_report.part.0+0x3f/0x7c
[   51.489794][   T41]  ? _copy_to_iter+0xb55/0x1140
[   51.494656][   T41]  kasan_report.cold+0xa/0xf
[   51.499256][   T41]  ? _copy_to_iter+0xb55/0x1140
[   51.504130][   T41]  kasan_check_range+0x141/0x190
[   51.509094][   T41]  memcpy+0x3d/0x60
[   51.512928][   T41]  _copy_to_iter+0xb55/0x1140
[   51.517616][   T41]  ? _copy_from_iter+0xf40/0xf40
[   51.522556][   T41]  ? folio_flags.constprop.0+0x53/0x150
[   51.528118][   T41]  ? shmem_get_folio_gfp+0x1026/0x1a60
[   51.533608][   T41]  ? page_copy_sane+0x28f/0x410
[   51.538474][   T41]  copy_page_to_iter+0xe0/0xa20
[   51.543339][   T41]  shmem_file_read_iter+0x37e/0xa50
[   51.548557][   T41]  ? shmem_read_mapping_page_gfp+0x230/0x230
[   51.554551][   T41]  ? mark_lock.part.0+0xee/0x1910
[   51.559689][   T41]  do_iter_readv_writev+0x2e0/0x3b0
[   51.564912][   T41]  ? lock_chain_count+0x20/0x20
[   51.569791][   T41]  ? generic_copy_file_range+0x1d0/0x1d0
[   51.575619][   T41]  ? security_file_permission+0xaf/0xd0
[   51.581184][   T41]  do_iter_read+0x2f2/0x750
[   51.585706][   T41]  ? mark_held_locks+0x9f/0xe0
[   51.590489][   T41]  ? rwlock_bug.part.0+0x90/0x90
[   51.595442][   T41]  vfs_iter_read+0x74/0xa0
[   51.599900][   T41]  loop_process_work+0x1592/0x2070
[   51.605040][   T41]  ? loop_queue_rq+0x11f0/0x11f0
[   51.609985][   T41]  ? lock_release+0x810/0x810
[   51.614689][   T41]  ? lock_downgrade+0x6e0/0x6e0
[   51.619580][   T41]  process_one_work+0x9bf/0x1710
[   51.624537][   T41]  ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[   51.629923][   T41]  ? rwlock_bug.part.0+0x90/0x90
[   51.634874][   T41]  ? _raw_spin_lock_irq+0x45/0x50
[   51.639909][   T41]  worker_thread+0x669/0x1090
[   51.644612][   T41]  ? process_one_work+0x1710/0x1710
[   51.649817][   T41]  kthread+0x2e8/0x3a0
[   51.653896][   T41]  ? kthread_complete_and_exit+0x40/0x40
[   51.659540][   T41]  ret_from_fork+0x1f/0x30
[   51.663985][   T41]  </TASK>
[   51.667789][   T41] Kernel Offset: disabled
[   51.672192][   T41] Rebooting in 86400 seconds..