diff options
| author | Jim Meyering <meyering@redhat.com> | 2012-04-20 21:27:25 +0200 |
|---|---|---|
| committer | Hugo Mills <hugo@carfax.org.uk> | 2012-06-05 19:56:20 +0100 |
| commit | 54e345b5c2339dee170595f686dbd26937620262 (patch) | |
| tree | b1b5c2267023e9d117906d979a042536c17b0d31 /btrfslabel.c | |
| parent | 47f029cc8bcf5a03ef6ee939fcb64007aafa50c4 (diff) | |
avoid several strncpy-induced buffer overruns
* restore.c (main): Ensure strncpy-copied dir_name is NUL-terminated.
* btrfsctl.c (main): Likewise, for a command-line argument.
* utils.c (multiple functions): Likewise.
* btrfs-list.c (add_root): Likewise.
* btrfslabel.c (change_label_unmounted): Likewise.
* cmds-device.c (cmd_add_dev, cmd_rm_dev, cmd_scan_dev): Likewise.
* cmds-filesystem.c (cmd_resize): Likewise.
* cmds-subvolume.c (cmd_subvol_create, cmd_subvol_delete, cmd_snapshot):
Likewise.
Reviewed-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'btrfslabel.c')
| -rw-r--r-- | btrfslabel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/btrfslabel.c b/btrfslabel.c index c9f46844..da694e1d 100644 --- a/btrfslabel.c +++ b/btrfslabel.c @@ -58,6 +58,7 @@ static void change_label_unmounted(char *dev, char *nLabel) trans = btrfs_start_transaction(root, 1); strncpy(root->fs_info->super_copy.label, nLabel, BTRFS_LABEL_SIZE); + root->fs_info->super_copy.label[BTRFS_LABEL_SIZE-1] = 0; btrfs_commit_transaction(trans, root); /* Now we close it since we are done. */ |