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lvmetad: fix memory leaks

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Hash tables need to release no longer needed inserted data.
This commit is contained in:
Zdenek Kabelac 2017-07-16 10:20:37 +02:00
parent fb641c3423
commit 919fa89482
2 changed files with 18 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.173 -
=================================
Fix memory leak in lvmetad when working with duplicates.
Accept 'lvm -h' and 'lvm --help' as well as 'lvm help' for help.
Suppress error message from accept() on clean lvmetad shutdown.
Tidy clvmd client list processing and fix segfaults.

17
daemons/lvmetad/lvmetad-core.c
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@ -258,6 +258,21 @@ static void destroy_metadata_hashes(lvmetad_state *s)
dm_hash_iterate(n, s->pvid_to_pvmeta)
dm_config_destroy(dm_hash_get_data(s->pvid_to_pvmeta, n));
dm_hash_iterate(n, s->vgid_to_vgname)
dm_free(dm_hash_get_data(s->vgid_to_vgname, n));
dm_hash_iterate(n, s->vgname_to_vgid)
dm_free(dm_hash_get_data(s->vgname_to_vgid, n));
dm_hash_iterate(n, s->vgid_to_info)
dm_free(dm_hash_get_data(s->vgid_to_info, n));
dm_hash_iterate(n, s->device_to_pvid)
dm_free(dm_hash_get_data(s->device_to_pvid, n));
dm_hash_iterate(n, s->pvid_to_vgid)
dm_free(dm_hash_get_data(s->pvid_to_vgid, n));
dm_hash_destroy(s->pvid_to_pvmeta);
dm_hash_destroy(s->vgid_to_metadata);
dm_hash_destroy(s->vgid_to_vgname);
@ -2111,6 +2126,8 @@ static response pv_found(lvmetad_state *s, request r)
DEBUGLOG(s, "pv_found ignore duplicate device %" PRIu64 " of existing PV for pvid %s",
arg_device, arg_pvid);
dm_config_destroy(new_pvmeta);
/* device_to_pvid no longer references prev_pvid_lookup */
dm_free((void*)prev_pvid_on_dev);
s->flags |= GLFL_DISABLE;
s->flags |= GLFL_DISABLE_REASON_DUPLICATES;
return reply_fail("Ignore duplicate PV");