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Commit 83f8ebd2 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarPeter 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: default avatarIngo Molnar <mingo@kernel.org>
parent 4f089678

arch/x86/events/intel/uncore.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {