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qemu_hotplug: fix crash in hot(un)plugging chardev devices

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We need to make sure that the chardev is TCP.  Without this check we
may access different part of union and corrupt pointers.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2016-10-18 08:59:14 +02:00
parent 6262a9b282
commit 0810782664
1 changed files with 4 additions and 2 deletions
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6
src/qemu/qemu_hotplug.c
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@ -1729,7 +1729,8 @@ int qemuDomainAttachChrDevice(virQEMUDriverPtr driver,
if (qemuDomainChrPreInsert(vmdef, chr) < 0)
goto cleanup;
if (cfg->chardevTLS) {
if (dev->type == VIR_DOMAIN_CHR_TYPE_TCP &&
cfg->chardevTLS) {
if (qemuBuildTLSx509BackendProps(cfg->chardevTLSx509certdir,
dev->data.tcp.listen,
cfg->chardevTLSx509verify,
@ -4398,7 +4399,8 @@ int qemuDomainDetachChrDevice(virQEMUDriverPtr driver,
sa_assert(tmpChr->info.alias);
if (cfg->chardevTLS &&
if (tmpChr->source.type == VIR_DOMAIN_CHR_TYPE_TCP &&
cfg->chardevTLS &&
!(objAlias = qemuAliasTLSObjFromChardevAlias(tmpChr->info.alias)))
goto cleanup;