mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-02 07:04:24 +00:00
aa5fe31b6b
__flush_dcache_pages() is called during hugetlb migration via
migrate_pages() -> migrate_hugetlbs() -> unmap_and_move_huge_page() ->
move_to_new_folio() -> flush_dcache_folio(). And with hugetlb and without
sparsemem vmemmap, struct page is not guaranteed to be contiguous beyond a
section. Use nth_page() instead.
Without the fix, a wrong address might be used for data cache page flush.
No bug is reported. The fix comes from code inspection.
Link: https://lkml.kernel.org/r/20230913201248.452081-6-zi.yan@sent.com
Fixes:
|
||
---|---|---|
.. | ||
c-octeon.c | ||
c-r3k.c | ||
c-r4k.c | ||
cache.c | ||
cerr-sb1.c | ||
cex-gen.S | ||
cex-oct.S | ||
cex-sb1.S | ||
context.c | ||
dma-noncoherent.c | ||
extable.c | ||
fault.c | ||
highmem.c | ||
hugetlbpage.c | ||
init.c | ||
ioremap.c | ||
ioremap64.c | ||
maccess.c | ||
Makefile | ||
mmap.c | ||
page-funcs.S | ||
page.c | ||
pgtable-32.c | ||
pgtable-64.c | ||
pgtable.c | ||
physaddr.c | ||
sc-debugfs.c | ||
sc-ip22.c | ||
sc-mips.c | ||
sc-r5k.c | ||
sc-rm7k.c | ||
tlb-funcs.S | ||
tlb-r3k.c | ||
tlb-r4k.c | ||
tlbex-fault.S | ||
tlbex.c | ||
uasm-micromips.c | ||
uasm-mips.c | ||
uasm.c |