uvm_fault(0xffffffff82a62358, 0xffff80001facf0a0, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ffs2_balloc+0x7ae:      movq    0(%rcx,%rax,8),%r15
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*423524   2428      0         0x2        0x1    0K syz-executor.7
ffs2_balloc(fffffd8067c89cc0,82374,68,fffffd807f7d8720,1,ffff80002e43f988) at ffs2_balloc+0x7ae sys/ufs/ffs/ffs_balloc.c:660
ffs_write(ffff80002e43fa20) at ffs_write+0x411 sys/ufs/ffs/ffs_vnops.c:349
VOP_WRITE(fffffd8059e3f570,ffff80002e43fad8,3,fffffd807f7d8720) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245
ktrwriteraw(ffff80002119ed20,fffffd8059e3f570,fffffd807f7d8720,ffff80002e43fbb8,ffff80002e43fb80) at ktrwriteraw+0x15f sys/kern/kern_ktrace.c:666
ktrsyscall(ffff80002119ed20,b,20,ffff80002e43fc70) at ktrsyscall+0x2e3 ktrwrite sys/kern/kern_ktrace.c:609 [inline]
ktrsyscall(ffff80002119ed20,b,20,ffff80002e43fc70) at ktrsyscall+0x2e3 sys/kern/kern_ktrace.c:185
syscall(ffff80002e43fd40) at syscall+0x356 mi_syscall sys/sys/syscall_mi.h:76 [inline]
syscall(ffff80002e43fd40) at syscall+0x356 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc3240, count: 8
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