The patch titled
Subject: kasan-simplify-kasan_poison_kfree-temp-fix
has been added to the -mm tree. Its filename is
kasan-simplify-kasan_poison_kfree-temp-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-simplify-kasan_poison_kfree-temp-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-simplify-kasan_poison_kfree-temp-fix.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Lorenzo Stoakes <lstoakes@xxxxxxxxx>
Subject: kasan-simplify-kasan_poison_kfree-temp-fix
temp workaround for a ceph-related oops
Link: https://lkml.kernel.org/r/CAA5enKY8mBicpc7kZKKLG5LeVFhVJtRQ73MYVFM0Az2bbiGv8g@xxxxxxxxxxxxxx
Reported-by: syzbot+2d6f3dad1a42d86a5801@xxxxxxxxxxxxxxxxxxxxxxxxx
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Qian Cai <cai@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/common.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/mm/kasan/common.c~kasan-simplify-kasan_poison_kfree-temp-fix
+++ a/mm/kasan/common.c
@@ -439,6 +439,11 @@ void __kasan_poison_kfree(void *ptr, uns
struct page *page;
page = virt_to_head_page(ptr);
+
+ if (!PageSlab(page)) {
+ return;
+ }
+
____kasan_slab_free(page->slab_cache, ptr, ip, false);
}
_
Patches currently in -mm which might be from lstoakes@xxxxxxxxx are
kasan-simplify-kasan_poison_kfree-temp-fix.patch
