Return an error if the user requests a negative logical block in a file. Signed-off-by: Mike Waychison <mikew@xxxxxxxxxx> fs/ioctl.c | 2 ++ 1 file changed, 2 insertions(+) Index: linux-2.6.23/fs/ioctl.c =================================================================== --- linux-2.6.23.orig/fs/ioctl.c 2007-10-26 15:25:48.000000000 -0700 +++ linux-2.6.23/fs/ioctl.c 2007-10-26 16:16:29.000000000 -0700 @@ -60,6 +60,8 @@ static int file_ioctl(struct file *filp, return -EPERM; if ((error = get_user(block, p)) != 0) return error; + if (block < 0) + return -EINVAL; lock_kernel(); res = mapping->a_ops->bmap(mapping, block); -- - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
