| commit | ec81ed2fba221b8bb92b8010e82d92e1de3b39fa | |
| author | KarimAllah Ahmed <karahmed@amazon.de> | |
| Wed, 10 Jul 2019 09:13:13 +0000 (10 11:13 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 29 Apr 2020 14:31:19 +0000 (29 16:31 +0200) | ||
| tree | 17ed07b75e2a9397afe8c6da772a00f19af3b15a | treesnapshot (tar.gz zip) |
| parent | e25441275142a0d57a51025213c4b6ef17b193e6 | commitdiff |
KVM: Properly check if "page" is valid in kvm_vcpu_unmap
commit b614c6027896ff9ad6757122e84760d938cab15e upstream.
The field "page" is initialized to KVM_UNMAPPED_PAGE when it is not used
(i.e. when the memory lives outside kernel control). So this check will
always end up using kunmap even for memremap regions.
Fixes: e45adf665a53 ("KVM: Introduce a new guest mapping API")
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit b614c6027896ff9ad6757122e84760d938cab15e upstream.
The field "page" is initialized to KVM_UNMAPPED_PAGE when it is not used
(i.e. when the memory lives outside kernel control). So this check will
always end up using kunmap even for memremap regions.
Fixes: e45adf665a53 ("KVM: Introduce a new guest mapping API")
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| virt/kvm/kvm_main.c | diffblobblamehistory |