| Message ID | 1403810017-16062-8-git-send-email-jlayton@primarydata.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Jun 26, 2014 at 03:11:47PM -0400, Jeff Layton wrote: > Currently rpc_pton() fails to handle the case where you echo an address > into the file, as it barfs on the newline. Ensure that we NULL out the > first occurrence of any newline. > > Signed-off-by: Jeff Layton <jlayton@primarydata.com> Looks good, Reviewed-by: Christoph Hellwig <hch@lst.de> -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/nfsd/fault_inject.c b/fs/nfsd/fault_inject.c index 2ed05c3cd43d..f1333fc35b33 100644 --- a/fs/nfsd/fault_inject.c +++ b/fs/nfsd/fault_inject.c @@ -115,11 +115,19 @@ static ssize_t fault_inject_write(struct file *file, const char __user *buf, struct net *net = current->nsproxy->net_ns; struct sockaddr_storage sa; u64 val; + char *nl; if (copy_from_user(write_buf, buf, size)) return -EFAULT; write_buf[size] = '\0'; + /* Deal with any embedded newlines in the string */ + nl = strchr(write_buf, '\n'); + if (nl) { + size = nl - write_buf; + *nl = '\0'; + } + size = rpc_pton(net, write_buf, size, (struct sockaddr *)&sa, sizeof(sa)); if (size > 0) nfsd_inject_set_client(file_inode(file)->i_private, &sa, size);
Currently rpc_pton() fails to handle the case where you echo an address into the file, as it barfs on the newline. Ensure that we NULL out the first occurrence of any newline. Signed-off-by: Jeff Layton <jlayton@primarydata.com> --- fs/nfsd/fault_inject.c | 8 ++++++++ 1 file changed, 8 insertions(+)