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| author | Catalin Marinas <catalin.marinas@arm.com> | 2023-01-19 17:09:02 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2023-01-21 11:02:19 +0000 |
| commit | c3b37c2d77a2c735857c55492ee81e88e855497d (patch) | |
| tree | 28eed49ac174a395c315e49ade89edd24d0fd09a /arch | |
| parent | de535c0234dd2dbd9c790790f2ca1c4ec8a52d2b (diff) | |
| download | linux-c3b37c2d77a2c735857c55492ee81e88e855497d.tar.bz2 | |
KVM: arm64: Pass the actual page address to mte_clear_page_tags()
Commit d77e59a8fccd ("arm64: mte: Lock a page for MTE tag
initialisation") added a call to mte_clear_page_tags() in case a
prior mte_copy_tags_from_user() failed in order to avoid stale tags in
the guest page (it should have really been a separate commit).
Unfortunately, the argument passed to this function was the address of
the struct page rather than the actual page address. Fix this function
call.
Fixes: d77e59a8fccd ("arm64: mte: Lock a page for MTE tag initialisation")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230119170902.1574756-1-catalin.marinas@arm.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kvm/guest.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 5626ddb540ce..cf4c495a4321 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -1079,7 +1079,7 @@ long kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm, /* uaccess failed, don't leave stale tags */ if (num_tags != MTE_GRANULES_PER_PAGE) - mte_clear_page_tags(page); + mte_clear_page_tags(maddr); set_page_mte_tagged(page); kvm_release_pfn_dirty(pfn); |