From: Oleg Drokin <green@xxxxxxxxxxxxxx>
Commit b8ff756bc351 ("staging: lustre: libcfs: merge code from
libcfs_ioctl into libcfs_ioctl_getdata") introduced a problem
copying just a single pointer worth of data from userspace
instead of whole libcfs_ioctl_hdr structure.
Adjust the copying amount.
Signed-off-by: Oleg Drokin <green@xxxxxxxxxxxxxx>
---
drivers/staging/lustre/lnet/libcfs/linux/linux-module.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
index b86e937..d89f71e 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
@@ -128,7 +128,7 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
struct libcfs_ioctl_hdr hdr;
int err = 0;
- if (copy_from_user(&hdr, uhdr, sizeof(uhdr)))
+ if (copy_from_user(&hdr, uhdr, sizeof(hdr)))
return -EFAULT;
if (hdr.ioc_version != LIBCFS_IOCTL_VERSION &&
--
2.1.0
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