17854f1c81
25833-32on64-bogus-pt_base-adjust.patch 25835-adjust-rcu-lock-domain.patch 25836-VT-d-S3-MSI-resume.patch 25850-tmem-xsa-15-1.patch 25851-tmem-xsa-15-2.patch 25852-tmem-xsa-15-3.patch 25853-tmem-xsa-15-4.patch 25854-tmem-xsa-15-5.patch 25855-tmem-xsa-15-6.patch 25856-tmem-xsa-15-7.patch 25857-tmem-xsa-15-8.patch 25858-tmem-xsa-15-9.patch 25859-tmem-missing-break.patch 25860-tmem-cleanup.patch 25861-x86-early-fixmap.patch 25862-sercon-non-com.patch 25863-sercon-ehci-dbgp.patch 25864-sercon-unused.patch 25866-sercon-ns16550-pci-irq.patch 25867-sercon-ns16550-parse.patch 25874-x86-EFI-chain-cfg.patch 25909-xenpm-consistent.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=201
45 lines
1.5 KiB
Diff
45 lines
1.5 KiB
Diff
# HG changeset patch
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# User Ian Campbell <ian.campbell@citrix.com>
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# Date 1347365847 -7200
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# Node ID f53c5aadbba9d389f4a7d83f308499e22d1d1eda
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# Parent d189d99ef00c1e197321593d13282e1b57eb4a38
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tmem: check for a valid client ("domain") in the save subops
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This is part of XSA-15 / CVE-2012-3497.
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Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
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Acked-by: Jan Beulich <jbeulich@suse.com>
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Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
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Committed-by: Jan Beulich <jbeulich@suse.com>
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--- a/xen/common/tmem.c
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+++ b/xen/common/tmem.c
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@@ -2379,12 +2379,18 @@ static NOINLINE int tmemc_save_subop(int
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rc = MAX_POOLS_PER_DOMAIN;
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break;
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case TMEMC_SAVE_GET_CLIENT_WEIGHT:
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+ if ( client == NULL )
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+ break;
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rc = client->weight == -1 ? -2 : client->weight;
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break;
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case TMEMC_SAVE_GET_CLIENT_CAP:
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+ if ( client == NULL )
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+ break;
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rc = client->cap == -1 ? -2 : client->cap;
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break;
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case TMEMC_SAVE_GET_CLIENT_FLAGS:
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+ if ( client == NULL )
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+ break;
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rc = (client->compress ? TMEM_CLIENT_COMPRESS : 0 ) |
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(client->was_frozen ? TMEM_CLIENT_FROZEN : 0 );
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break;
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@@ -2408,6 +2414,8 @@ static NOINLINE int tmemc_save_subop(int
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*uuid = pool->uuid[1];
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rc = 0;
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case TMEMC_SAVE_END:
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+ if ( client == NULL )
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+ break;
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client->live_migrating = 0;
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if ( !list_empty(&client->persistent_invalidated_list) )
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list_for_each_entry_safe(pgp,pgp2,
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