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