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authorThomas Gleixner <[email protected]>2016-02-22 22:19:10 +0000
committerIngo Molnar <[email protected]>2016-02-29 09:35:14 +0100
commit83f8ebd2eb459b21e8e74d43c75e1be666ec8b97 (patch)
tree0b0c545fb6f64d4d935e55a9cc664a57a9b1f5d8
parent4f089678d071781851c3b73c41e55a3765b6a5ee (diff)
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 <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Harish Chegondi <[email protected]> Cc: Jacob Pan <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Vince Weaver <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-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) {