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authorThomas Gleixner <tglx@linutronix.de>2016-02-22 22:19:10 +0000
committerIngo Molnar <mingo@kernel.org>2016-02-29 09:35:14 +0100
commit83f8ebd2eb459b21e8e74d43c75e1be666ec8b97 (patch)
tree0b0c545fb6f64d4d935e55a9cc664a57a9b1f5d8 /arch/x86/events/intel
parent4f089678d071781851c3b73c41e55a3765b6a5ee (diff)
downloadlinux-83f8ebd2eb459b21e8e74d43c75e1be666ec8b97.tar.bz2
perf/x86/intel/uncore: Add sanity checks for PCI dev package id
The storage array is size limited, but misses a sanity check Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andi Kleen <andi.kleen@intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Harish Chegondi <harish.chegondi@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20160222221010.929967806@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/events/intel')
-rw-r--r--arch/x86/events/intel/uncore.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 25e62037563e..42ea435e5ead 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -882,7 +882,7 @@ static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id
int phys_id, ret;
phys_id = uncore_pcibus_to_physid(pdev->bus);
- if (phys_id < 0)
+ if (phys_id < 0 || phys_id >= UNCORE_SOCKET_MAX)
return -ENODEV;
if (UNCORE_PCI_DEV_TYPE(id->driver_data) == UNCORE_EXTRA_PCI_DEV) {