Message ID | 4e7b56865e01569058914c991143f5961b5d4719.1583507333.git.christophe.leroy@c-s.fr (mailing list archive) |
---|---|
State | Accepted |
Commit | af92bad615be75c6c0d1b1c5b48178360250a187 |
Headers | show |
Series | powerpc/kasan: Fix kasan_remap_early_shadow_ro() | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch powerpc/merge (ab326587bb5fb91cc97df9b9f48e9e1469f04621) |
snowpatch_ozlabs/build-ppc64le | success | Build succeeded |
snowpatch_ozlabs/build-ppc64be | success | Build succeeded |
snowpatch_ozlabs/build-ppc64e | success | Build succeeded |
snowpatch_ozlabs/build-pmac32 | success | Build succeeded |
snowpatch_ozlabs/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 8 lines checked |
snowpatch_ozlabs/needsstable | success | Patch is tagged for stable |
On Fri, 2020-03-06 at 15:09:40 UTC, Christophe Leroy wrote: > 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 Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/af92bad615be75c6c0d1b1c5b48178360250a187 cheers
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);
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 --- arch/powerpc/mm/kasan/kasan_init_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)