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authorJoel Stanley <joel@jms.id.au>2020-08-31 03:46:52 +0300
committerJoel Stanley <joel@jms.id.au>2020-08-31 03:46:57 +0300
commit0dd0c8c492fa70707ca4f0d36dcb2e3c64105b16 (patch)
treea420abd8f26264544246602c60d161a7cc4de390 /drivers/misc/lkdtm/heap.c
parent31d8605658d37d9197a989838508481d5dc1d8bc (diff)
parent9ece50d8a470ca7235ffd6ac0f9c5f0f201fe2c8 (diff)
downloadlinux-dev-5.8.tar.xz
Merge tag 'v5.8.5' into dev-5.8dev-5.8
This is the 5.8.5 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/misc/lkdtm/heap.c')
-rw-r--r--drivers/misc/lkdtm/heap.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/misc/lkdtm/heap.c b/drivers/misc/lkdtm/heap.c
index 3c5cec85edce..1323bc16f113 100644
--- a/drivers/misc/lkdtm/heap.c
+++ b/drivers/misc/lkdtm/heap.c
@@ -58,11 +58,12 @@ void lkdtm_READ_AFTER_FREE(void)
int *base, *val, saw;
size_t len = 1024;
/*
- * The slub allocator uses the first word to store the free
- * pointer in some configurations. Use the middle of the
- * allocation to avoid running into the freelist
+ * The slub allocator will use the either the first word or
+ * the middle of the allocation to store the free pointer,
+ * depending on configurations. Store in the second word to
+ * avoid running into the freelist.
*/
- size_t offset = (len / sizeof(*base)) / 2;
+ size_t offset = sizeof(*base);
base = kmalloc(len, GFP_KERNEL);
if (!base) {