From: Jann Horn <[email protected]>
commit 52f6f9d74f31078964ca1574f7bb612da7877ac8 upstream.
As sparse points out, these two copy_from_user() should actually be
copy_to_user().
Fixes: 229b53c9bf4e ("take floppy compat ioctls to sodding floppy.c")
Cc: [email protected]
Acked-by: Alexander Popov <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/block/floppy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3784,7 +3784,7 @@ static int compat_getdrvprm(int drive,
v.native_format = UDP->native_format;
mutex_unlock(&floppy_mutex);
- if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
+ if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
return -EFAULT;
return 0;
}
@@ -3820,7 +3820,7 @@ static int compat_getdrvstat(int drive,
v.bufblocks = UDRS->bufblocks;
mutex_unlock(&floppy_mutex);
- if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
+ if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
return -EFAULT;
return 0;
Eintr:
