usb: hcd: out of bounds access in for_each_companion

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[ Upstream commit e86103a757 ]

On BXT platform Host Controller and Device Controller figure as
same PCI device but with different device function. HCD should
not pass data to Device Controller but only to Host Controllers.
Checking if companion device is Host Controller, otherwise skip.

Cc: <stable@vger.kernel.org>
Signed-off-by: Robert Dobrowolski <robert.dobrowolski@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

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Robert Dobrowolski 2016-03-24 03:30:07 -07:00 • committed by Sasha Levin

parent 17c094b05a

commit b016f99b40

1 changed files with 9 additions and 0 deletions

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drivers/usb/core/hcd-pci.c

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