gfs2: Fix possible fs name overflows
This patch fixes three places in which temporary character buffers
could overflow due to the addition of the file system id from patch
3792ce973f07. Thanks to Dan Carpenter for pointing it out.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 49ac0a5..2466bb4 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -2285,7 +2285,7 @@ void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_glock *gl,
static void gfs2_rgrp_error(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
- char fs_id_buf[GFS2_FSNAME_LEN + 3 * sizeof(int) + 2];
+ char fs_id_buf[sizeof(sdp->sd_fsname) + 7];
fs_warn(sdp, "rgrp %llu has an error, marking it readonly until umount\n",
(unsigned long long)rgd->rd_addr);
