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| author | Steve Dickson <steved@redhat.com> | 2014-01-17 10:57:29 -0500 |
|---|---|---|
| committer | Steve Dickson <steved@redhat.com> | 2014-01-20 15:51:46 -0500 |
| commit | f4f372ae316a650b4e54c26758af964b5a6d9cbf (patch) | |
| tree | 4cf024a8037ee5f8a19bc4c0ca810d66d0ab8d85 /utils/exportfs/exportfs.c | |
| parent | 35640883cf34a32f893e9fecefbb193782e9bc75 (diff) | |
| download | nfs-utils-f4f372ae316a650b4e54c26758af964b5a6d9cbf.tar.gz nfs-utils-f4f372ae316a650b4e54c26758af964b5a6d9cbf.tar.xz nfs-utils-f4f372ae316a650b4e54c26758af964b5a6d9cbf.zip | |
exportfs: Don't buffer overflow on exports that are too big.
Signed-off-by: Steve Dickson <steved@redhat.com>
Diffstat (limited to 'utils/exportfs/exportfs.c')
| -rw-r--r-- | utils/exportfs/exportfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c index 9ea86cb..8c86790 100644 --- a/utils/exportfs/exportfs.c +++ b/utils/exportfs/exportfs.c @@ -452,6 +452,8 @@ static int test_export(char *path, int with_fsid) bp += n; len -= n; qword_add(&bp, &len, path); + if (len < 1) + return 0; snprintf(bp, len, " 3 %d 65534 65534 0\n", with_fsid ? NFSEXP_FSID : 0); fd = open("/proc/net/rpc/nfsd.export/channel", O_WRONLY); if (fd < 0) |