uvm_fault(0xffffffff838fce98, 0xffff800025f53e40, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ffs2_balloc+0xa0d:      movq    0(%rcx,%rax,8),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*130972  95524      0      0x1000  0x4080000    0K syz-executor
 455520  10332      0         0x2        0x1    1  syz-executor
ffs2_balloc(fffffd806e319620,f50000,4000,fffffd80097fb680,2,ffff80003c456388) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80003c456410) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805e627b28,ffff80003c4565c8,7,fffffd80097fb680) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_write(fffffd8060595c80,ffff80003c4565c8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:408
dofilewritev(ffff8000fffdfa18,3,ffff80003c4565c8,0,ffff80003c456680) at dofilewritev+0x242 sys/kern/sys_generic.c:380
sys_write(ffff8000fffdfa18,ffff80003c456730,ffff80003c456680) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80003c456730) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c456730) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1b7e6182300, count: 7
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