Use the untagged_addr() instead of the address passed into the function. Fixes: 3338b715d25d (mm/mprotect: use maple tree navigation instead of vma linked list) Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> --- mm/mprotect.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/mprotect.c b/mm/mprotect.c index f2b9b1da9083..3c79796be65e 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -675,7 +675,7 @@ static int do_mprotect_pkey(unsigned long start, size_t len, const bool rier = (current->personality & READ_IMPLIES_EXEC) && (prot & PROT_READ); struct mmu_gather tlb; - MA_STATE(mas, ¤t->mm->mm_mt, start, start); + MA_STATE(mas, ¤t->mm->mm_mt, 0, 0); start = untagged_addr(start); @@ -707,6 +707,7 @@ static int do_mprotect_pkey(unsigned long start, size_t len, if ((pkey != -1) && !mm_pkey_is_allocated(current->mm, pkey)) goto out; + mas_set(&mas, start); vma = mas_find(&mas, ULONG_MAX); error = -ENOMEM; if (!vma) -- 2.35.1