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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2020-03-06 15:09:40 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-03-25 12:09:27 +1100 |
| commit | af92bad615be75c6c0d1b1c5b48178360250a187 (patch) | |
| tree | 57320fbc9d62af23eb59c1267277fdf5a1ad7f87 /arch/powerpc/mm/kasan/kasan_init_32.c | |
| parent | eb4f8e259acc37b91b62ca57e0d3c8960c357843 (diff) | |
| download | linux-stable-af92bad615be75c6c0d1b1c5b48178360250a187.tar.gz linux-stable-af92bad615be75c6c0d1b1c5b48178360250a187.tar.bz2 linux-stable-af92bad615be75c6c0d1b1c5b48178360250a187.zip | |
powerpc/kasan: Fix kasan_remap_early_shadow_ro()
At the moment kasan_remap_early_shadow_ro() does nothing, because
k_end is 0 and k_cur < 0 is always true.
Change the test to k_cur != k_end, as done in
kasan_init_shadow_page_tables()
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: cbd18991e24f ("powerpc/mm: Fix an Oops in kasan_mmu_init()")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4e7b56865e01569058914c991143f5961b5d4719.1583507333.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/mm/kasan/kasan_init_32.c')
| -rw-r--r-- | arch/powerpc/mm/kasan/kasan_init_32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c index f19526e7d3dc..1a29cf469903 100644 --- a/arch/powerpc/mm/kasan/kasan_init_32.c +++ b/arch/powerpc/mm/kasan/kasan_init_32.c @@ -101,7 +101,7 @@ static void __init kasan_remap_early_shadow_ro(void) kasan_populate_pte(kasan_early_shadow_pte, prot); - for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { + for (k_cur = k_start & PAGE_MASK; k_cur != k_end; k_cur += PAGE_SIZE) { pmd_t *pmd = pmd_ptr_k(k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); |