Revision 9c1c2b35f1d94de8325344c2777d7ee67492db3b authored by Jeff Layton on 03 April 2019, 17:16:01 UTC, committed by Ilya Dryomov on 21 January 2020, 18:02:37 UTC
Currently, we just assume that it will stick around by virtue of the submitter's reference, but later patches will allow the syscall to return early and we can't rely on that reference at that point. While I'm not aware of any reports of it, Xiubo pointed out that this may fix a use-after-free. If the wait for a reply times out or is canceled via signal, and then the reply comes in after the syscall returns, the client can end up trying to access r_parent without a reference. Take an extra reference to the inode when setting r_parent and release it when releasing the request. Cc: stable@vger.kernel.org Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Kbuild.platforms
# SPDX-License-Identifier: GPL-2.0
# All platforms listed in alphabetic order
platforms += alchemy
platforms += ar7
platforms += ath25
platforms += ath79
platforms += bcm47xx
platforms += bcm63xx
platforms += bmips
platforms += cavium-octeon
platforms += cobalt
platforms += dec
platforms += emma
platforms += generic
platforms += jazz
platforms += jz4740
platforms += lantiq
platforms += lasat
platforms += loongson2ef
platforms += loongson32
platforms += loongson64
platforms += mti-malta
platforms += netlogic
platforms += paravirt
platforms += pic32
platforms += pistachio
platforms += pmcs-msp71xx
platforms += pnx833x
platforms += ralink
platforms += rb532
platforms += sgi-ip22
platforms += sgi-ip27
platforms += sgi-ip30
platforms += sgi-ip32
platforms += sibyte
platforms += sni
platforms += txx9
platforms += vr41xx
# include the platform specific files
include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))
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