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1843abd032
Userspace could have munmapped the area before doing unmapping from
the gmap. This would leave us with a valid vmaddr, but an invalid vma
from which we would try to zap memory.
Let's check before using the vma.
Fixes:
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.. | ||
cmm.c | ||
dump_pagetables.c | ||
extmem.c | ||
fault.c | ||
gmap.c | ||
gup.c | ||
hugetlbpage.c | ||
init.c | ||
maccess.c | ||
Makefile | ||
mem_detect.c | ||
mmap.c | ||
page-states.c | ||
pageattr.c | ||
pgalloc.c | ||
pgtable.c | ||
vmem.c |