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| author | Frank Blaschka <blaschka@linux.vnet.ibm.com> | 2015-01-16 14:55:21 +0100 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2015-02-03 13:42:40 +0100 |
| commit | 5b324bbafc4fe367bd9c5bfa6cff071081fb8b0e (patch) | |
| tree | 3f4fb9b6a23f23375cd71052b193eb4623390226 /hw/s390x/s390-pci-bus.c | |
| parent | c0eb33ab5428edf85a29a4f91f64d6802b6cefaa (diff) | |
| download | hqemu-5b324bbafc4fe367bd9c5bfa6cff071081fb8b0e.zip hqemu-5b324bbafc4fe367bd9c5bfa6cff071081fb8b0e.tar.gz | |
s390x/pci: check for invalid function handle
broken guest may provide 0 (invalid) function handle to zpci
instructions. Since we use function handle 0 to indicate an empty
slot in the PHB we have to add an additional check to spot this
kind of error.
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x/s390-pci-bus.c')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index d25ac74..dc455a2 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -170,7 +170,7 @@ S390PCIBusDevice *s390_pci_find_dev_by_fh(uint32_t fh) S390pciState *s = S390_PCI_HOST_BRIDGE( object_resolve_path(TYPE_S390_PCI_HOST_BRIDGE, NULL)); - if (!s) { + if (!s || !fh) { return NULL; } |
