Hi SteveD,
This is a real problem introduced by my previous update. Sorry for it.
How about also adding this tag:
Fixes: a9a7728d (exportfs: Deal with path's trailing "/" in unexportfs_parsed())
Thanks,
Yongcheng
On Mon, Mar 29, 2021 at 12:54:35PM +0200, Roberto Bergantinos Corpas wrote:
> If root of the filesystem is exported, it cannot be explicitly
> unexported, since unexportfs_parsed, in order to deal with trailing
> '/', will leave nlen at 0 for root exported case
>
> Signed-off-by: Roberto Bergantinos Corpas <rbergant@xxxxxxxxxx>
> ---
> utils/exportfs/exportfs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
> index 9fcae0b3..9b6f4f5a 100644
> --- a/utils/exportfs/exportfs.c
> +++ b/utils/exportfs/exportfs.c
> @@ -372,7 +372,7 @@ unexportfs_parsed(char *hname, char *path, int verbose)
> * so need to deal with it.
> */
> size_t nlen = strlen(path);
> - while (path[nlen - 1] == '/')
> + while ((path[nlen - 1] == '/') && (nlen > 1))
> nlen--;
>
> for (exp = exportlist[htype].p_head; exp; exp = exp->m_next) {
> --
> 2.21.0
>
