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| author | Alex Zhang <[email protected]> | 2020-08-07 06:22:24 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-08-07 18:33:26 +0000 |
| commit | 0c4123e3fb82d6014d0a70b52eb38153f658541c (patch) | |
| tree | 5c656de44bab39604512c9438a665f657b09aec6 /mm/hugetlb.c | |
| parent | mm: remove redundant check non_swap_entry() (diff) | |
| download | kernel-0c4123e3fb82d6014d0a70b52eb38153f658541c.tar.gz kernel-0c4123e3fb82d6014d0a70b52eb38153f658541c.zip | |
mm/memory.c: make remap_pfn_range() reject unaligned addr
This function implicitly assumes that the addr passed in is page aligned.
A non page aligned addr could ultimately cause a kernel bug in
remap_pte_range as the exit condition in the logic loop may never be
satisfied. This patch documents the need for the requirement, as well as
explicitly adds a check for it.
Signed-off-by: Alex Zhang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions