1 files changed, 42 insertions, 0 deletions

diff --git a/meta/recipes-extended/mdadm/files/0004-monitor-Avoid-segfault-when-calling-NULL-get_bad_blo.patch b/meta/recipes-extended/mdadm/files/0004-monitor-Avoid-segfault-when-calling-NULL-get_bad_blo.patch
new file mode 100644
index 0000000000..72cb40f782
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0004-monitor-Avoid-segfault-when-calling-NULL-get_bad_blo.patch
@@ -0,0 +1,42 @@
+From 2296a4a441b4b8546e2eb32403930f1bb8f3ee4a Mon Sep 17 00:00:00 2001
+From: Logan Gunthorpe <logang@deltatee.com>
+Date: Wed, 22 Jun 2022 14:25:10 -0600
+Subject: [PATCH 4/4] monitor: Avoid segfault when calling NULL get_bad_blocks
+
+Not all struct superswitch implement a get_bad_blocks() function,
+yet mdmon seems to call it without checking for NULL and thus
+occasionally segfaults in the test 10ddf-geometry.
+
+Fix this by checking for NULL before calling it.
+
+Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
+Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
+Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
+
+Upstream-Status: Backport
+
+Reference to upstream patch:
+https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/commit/?id=9ae62977b51d
+
+Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
+---
+ monitor.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/monitor.c b/monitor.c
+index afc3e50..8e43c0d 100644
+--- a/monitor.c
++++ b/monitor.c
+@@ -312,6 +312,9 @@ static int check_for_cleared_bb(struct active_array *a, struct mdinfo *mdi)
+        struct md_bb *bb;
+        int i;
+ 
++       if (!ss->get_bad_blocks)
++               return -1;
++
+        /*
+         * Get a list of bad blocks for an array, then read list of
+         * acknowledged bad blocks from kernel and compare it against metadata
+-- 
+2.39.1
+