get_align_mask() returns huge_page_mask_align() for hugetlbfs, but get_align_bits()
adds va_align.bits regardless, so vm_unmapped_area() returns an address off the huge
page boundary and __unmap_hugepage_range() hits BUG_ON(start & ~huge_page_mask(h)) at
teardown.
This can be triggered on Carrizo and FX-8370E, both hstates.
Pass the file to get_align_bits() and skip the randomisation for hugetlbfs.
[ bp: Massage commit message. ]
Fixes: 1317a5e7f7 ("arch/x86: teach arch_get_unmapped_area_vmflags to handle hugetlb mappings")
Suggested-by: Dave Hansen <[email protected]>
Acked-by: Dave Hansen <[email protected]>
Signed-off-by: Laurent Wandrebeck <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Cc: [email protected] # 6.13+
Link: https://patch.msgid.link/[email protected]
Laurent Wandrebeck
d2457a7e27