diff options
Diffstat (limited to 'sys-fs/mdadm/files/mdadm-3.3.1-DDF-validate-metadata_update-size-before-using-it.patch')
-rw-r--r-- | sys-fs/mdadm/files/mdadm-3.3.1-DDF-validate-metadata_update-size-before-using-it.patch | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/sys-fs/mdadm/files/mdadm-3.3.1-DDF-validate-metadata_update-size-before-using-it.patch b/sys-fs/mdadm/files/mdadm-3.3.1-DDF-validate-metadata_update-size-before-using-it.patch deleted file mode 100644 index befb7da91735..000000000000 --- a/sys-fs/mdadm/files/mdadm-3.3.1-DDF-validate-metadata_update-size-before-using-it.patch +++ /dev/null @@ -1,44 +0,0 @@ -From 1f17f96b538793a0e665e471f602c6fa490ec167 Mon Sep 17 00:00:00 2001 -From: NeilBrown <neilb@suse.de> -Date: Thu, 10 Jul 2014 15:59:06 +1000 -Subject: [PATCH 12/14] DDF: validate metadata_update size before using it. - -process_update already checks update->len, for all but -the 'magic', prepare_update doesn't at all. - -So add tests to prepare_update that we don't exceed the buffer. -This will consequently protect process_update from looking -for a 'magic' which isn't there. - -Reported-by: Vincent Berg <vberg@ioactive.com> -Signed-off-by: NeilBrown <neilb@suse.de> ---- - super-ddf.c | 10 ++++++++-- - 1 file changed, 8 insertions(+), 2 deletions(-) - -diff --git a/super-ddf.c b/super-ddf.c -index 1e43ca2..8957c2e 100644 ---- a/super-ddf.c -+++ b/super-ddf.c -@@ -4914,10 +4914,16 @@ static int ddf_prepare_update(struct supertype *st, - * If a malloc is needed, do it here. - */ - struct ddf_super *ddf = st->sb; -- be32 *magic = (be32 *)update->buf; -+ be32 *magic; -+ if (update->len < 4) -+ return 0; -+ magic = (be32 *)update->buf; - if (be32_eq(*magic, DDF_VD_CONF_MAGIC)) { - struct vcl *vcl; -- struct vd_config *conf = (struct vd_config *) update->buf; -+ struct vd_config *conf; -+ if (update->len < (int)sizeof(*conf)) -+ return 0; -+ conf = (struct vd_config *) update->buf; - if (posix_memalign(&update->space, 512, - offsetof(struct vcl, conf) - + ddf->conf_rec_len * 512) != 0) { --- -2.0.0 - |