Commit 55b4410c authored by Alexander Graf's avatar Alexander Graf Committed by openeuler-sync-bot
Browse files

KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()

stable inclusion
from stable-v5.10.154
commit bb584caee8957469dfd7549dc7accdce806f23dd
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I64YCB

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bb584caee8957469dfd7549dc7accdce806f23dd



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[ Upstream commit 2e3272bc ]

In the next patch we want to introduce a second caller to
set_msr_filter() which constructs its own filter list on the stack.
Refactor the original function so it takes it as argument instead of
reading it through copy_from_user().

Signed-off-by: default avatarAlexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-3-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarLipeng Sang <sanglipeng1@jd.com>
(cherry picked from commit 418a1835)
parent 628ee41c
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