diff options
Diffstat (limited to 'lib/iov_iter.c')
| -rw-r--r-- | lib/iov_iter.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 14cae2584db4..1635111c5bd2 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -2,6 +2,7 @@ #include <crypto/hash.h> #include <linux/export.h> #include <linux/bvec.h> +#include <linux/fault-inject-usercopy.h> #include <linux/uio.h> #include <linux/pagemap.h> #include <linux/slab.h> @@ -140,6 +141,8 @@ static int copyout(void __user *to, const void *from, size_t n) { + if (should_fail_usercopy()) + return n; if (access_ok(to, n)) { instrument_copy_to_user(to, from, n); n = raw_copy_to_user(to, from, n); @@ -149,6 +152,8 @@ static int copyout(void __user *to, const void *from, size_t n) static int copyin(void *to, const void __user *from, size_t n) { + if (should_fail_usercopy()) + return n; if (access_ok(from, n)) { instrument_copy_from_user(to, from, n); n = raw_copy_from_user(to, from, n); |