69 lines
2.0 KiB
Diff
69 lines
2.0 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Thu, 2 Feb 2023 09:20:35 +0100
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Subject: [PATCH] libmpathpersist: fix resource leak in update_map_pr()
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The "no available paths" case would leak the memory resp points to.
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Found by coverity.
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Fixes: 50e2c16 ("multipathd: handle no active paths in update_map_pr")
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmpathpersist/mpath_persist.c | 15 ++++++++-------
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1 file changed, 8 insertions(+), 7 deletions(-)
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diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
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index 3fc60da2..29b64937 100644
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--- a/libmpathpersist/mpath_persist.c
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+++ b/libmpathpersist/mpath_persist.c
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@@ -874,7 +874,7 @@ int update_map_pr(struct multipath *mpp)
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int noisy=0;
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struct prin_resp *resp;
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unsigned int i;
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- int ret, isFound;
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+ int ret = MPATH_PR_OTHER, isFound;
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if (!get_be64(mpp->reservation_key))
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{
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@@ -895,7 +895,7 @@ int update_map_pr(struct multipath *mpp)
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{
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condlog(0,"%s: No available paths to check pr status",
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mpp->alias);
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- return MPATH_PR_OTHER;
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+ goto out;
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}
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mpp->prflag = PRFLAG_UNSET;
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ret = mpath_prin_activepath(mpp, MPATH_PRIN_RKEY_SA, resp, noisy);
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@@ -903,15 +903,15 @@ int update_map_pr(struct multipath *mpp)
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if (ret != MPATH_PR_SUCCESS )
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{
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condlog(0,"%s : pr in read keys service action failed Error=%d", mpp->alias, ret);
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- free(resp);
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- return ret;
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+ goto out;
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}
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+ ret = MPATH_PR_SUCCESS;
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+
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if (resp->prin_descriptor.prin_readkeys.additional_length == 0 )
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{
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condlog(3,"%s: No key found. Device may not be registered. ", mpp->alias);
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- free(resp);
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- return MPATH_PR_SUCCESS;
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+ goto out;
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}
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condlog(2, "%s: Multipath reservation_key: 0x%" PRIx64 " ", mpp->alias,
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@@ -936,6 +936,7 @@ int update_map_pr(struct multipath *mpp)
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condlog(2, "%s: prflag flag set.", mpp->alias );
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}
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+out:
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free(resp);
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- return MPATH_PR_SUCCESS;
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+ return ret;
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}
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