diff options
Diffstat (limited to 'sbin/mountd')
| -rw-r--r-- | sbin/mountd/mountd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sbin/mountd/mountd.c b/sbin/mountd/mountd.c index 303896c..3726cba 100644 --- a/sbin/mountd/mountd.c +++ b/sbin/mountd/mountd.c @@ -1734,6 +1734,7 @@ do_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) int dirplen; struct statfs *fsb; { + struct statfs fsb1; struct addrinfo *ai; struct export_args *eap; char *cp = NULL; @@ -1835,6 +1836,13 @@ do_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) } savedc = *cp; *cp = '\0'; + /* Check that we're still on the same filesystem. */ + if (statfs(dirp, &fsb1) != 0 || bcmp(&fsb1.f_fsid, + &fsb->f_fsid, sizeof(fsb1.f_fsid)) != 0) { + *cp = savedc; + syslog(LOG_ERR, "can't export %s", dirp); + return (1); + } } skip: if (ai != NULL) |
