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authorXi Wang <xi.wang@gmail.com>2012-04-09 15:48:45 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-17 15:54:57 -0700
commit8bde9a62ee74afa89f593c563e926d163b1f6ada (patch)
tree32b9daa28afaf5b93329ed4a8509602d2b5f6b2a /drivers/mfd
parente65cdfae71cecec0fcd43a3f9ac8b5e4ae52db08 (diff)
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usb: usbtest: avoid integer overflow in alloc_sglist()
A large `nents' from userspace could overflow the allocation size, leading to memory corruption. | alloc_sglist() | usbtest_ioctl() Use kmalloc_array() to avoid the overflow. Signed-off-by: Xi Wang <xi.wang@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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