diff options
Diffstat (limited to 'lib/test_kasan.c')
| -rw-r--r-- | lib/test_kasan.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c index 3872d250ed2c..e3087d90e00d 100644 --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -285,6 +285,24 @@ static noinline void __init kmalloc_oob_in_memset(void) kfree(ptr); } +static noinline void __init kmalloc_memmove_invalid_size(void) +{ + char *ptr; + size_t size = 64; + volatile size_t invalid_size = -2; + + pr_info("invalid size in memmove\n"); + ptr = kmalloc(size, GFP_KERNEL); + if (!ptr) { + pr_err("Allocation failed\n"); + return; + } + + memset((char *)ptr, 0, 64); + memmove((char *)ptr, (char *)ptr + 4, invalid_size); + kfree(ptr); +} + static noinline void __init kmalloc_uaf(void) { char *ptr; @@ -799,6 +817,7 @@ static int __init kmalloc_tests_init(void) kmalloc_oob_memset_4(); kmalloc_oob_memset_8(); kmalloc_oob_memset_16(); + kmalloc_memmove_invalid_size(); kmalloc_uaf(); kmalloc_uaf_memset(); kmalloc_uaf2(); |