panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1784
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 158482  48018      0           0  0x4000000    1  syz-executor
*396589  33751      0           0  0x4000000    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83390806) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff833d355e,ffffffff8333473b,6f8,ffffffff833b4c8f) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_fault_unwire_locked(fffffd80684dc218,200000070000,200000079000) at uvm_fault_unwire_locked+0x444 sys/uvm/uvm_fault.c:1781
uvm_fault_wire(fffffd80684dc218,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1744 [inline]
uvm_fault_wire(fffffd80684dc218,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1726
uvm_vslock_device(ffff80003c497a20,200000070040,10000,3,ffff80002efd5c98) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169
physio(ffffffff81e0ec10,d02,8000,ffffffff81e0f460,ffff80002efd5f78) at physio+0x257 sys/kern/kern_physio.c:139
spec_read(ffff80002efd5dd0) at spec_read+0x14b sys/kern/spec_vnops.c:215
VOP_READ(fffffd807b513368,ffff80002efd5f78,0,fffffd80097fb618) at VOP_READ+0x101 sys/kern/vfs_vops.c:227
vn_read(fffffd806c0a25e0,ffff80002efd5f78,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369
dofilereadv(ffff80003c497a20,3,ffff80002efd5f78,1,ffff80002efd6030) at dofilereadv+0x25a sys/kern/sys_generic.c:252
sys_pread(ffff80003c497a20,ffff80002efd60e0,ffff80002efd6030) at sys_pread+0xae sys/kern/vfs_syscalls.c:3307
syscall(ffff80002efd60e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002efd60e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1c560a89850, count: 1
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