From 78ab125e63115a7f42d598a2113cd75092a40335 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Sun, 27 Mar 2016 12:05:03 -0400 Subject: [PATCH] staging/lustre/libcfs: Copy correct amount in libcfs_ioctl_getdata 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 Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- 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 && -- 2.7.4