mdadm/0040-mdadm-fix-grow-segfault-for-IMSM.patch
Xiao Ni fbe794e269 Update to latest upstream
Update to 4.3 and backport other patches behind 4.3

Resolves: RHEL-30530

Signed-off-by: Xiao Ni <xni@redhat.com>
2024-03-29 17:30:23 +08:00

56 lines
1.6 KiB
Diff

From ae996e81232b8ba991e763dfa15577a0af358358 Mon Sep 17 00:00:00 2001
From: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Date: Mon, 18 Mar 2024 17:28:42 +0100
Subject: [PATCH 40/41] mdadm: fix grow segfault for IMSM
If sc is not initialized, there is possibility that sc.pols is not zeroed
and it causes segfault.
Add missing initialization.
Add missing dev_policy_free() in two places.
Fixes: f656201188d7 ("mdadm: drop get_required_spare_criteria()")
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
---
Incremental.c | 1 +
super-intel.c | 9 +++++++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/Incremental.c b/Incremental.c
index 958ba9ba..83db0712 100644
--- a/Incremental.c
+++ b/Incremental.c
@@ -874,6 +874,7 @@ mdadm_status_t incremental_external_test_spare_criteria(struct supertype *st, ch
rv = MDADM_STATUS_SUCCESS;
out:
+ dev_policy_free(sc.pols);
dup->ss->free_super(dup);
free(dup);
diff --git a/super-intel.c b/super-intel.c
index ff2590fe..70f3c4ef 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -11518,10 +11518,15 @@ static int imsm_reshape_is_allowed_on_container(struct supertype *st,
*/
static struct mdinfo *get_spares_for_grow(struct supertype *st)
{
- struct spare_criteria sc;
+ struct spare_criteria sc = {0};
+ struct mdinfo *spares;
get_spare_criteria_imsm(st, NULL, &sc);
- return container_choose_spares(st, &sc, NULL, NULL, NULL, 0);
+ spares = container_choose_spares(st, &sc, NULL, NULL, NULL, 0);
+
+ dev_policy_free(sc.pols);
+
+ return spares;
}
/******************************************************************************
--
2.40.1