diff options
| author | Pei Li <[email protected]> | 2024-06-27 08:03:56 -0700 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2024-06-28 08:31:46 -0700 |
| commit | ebbdf37ce9abb597015fa85df6630ebfa7d0a97f (patch) | |
| tree | 03e311b026e64aa8a378e7d3b19e676ea7b17e0d /mm/page_alloc.c | |
| parent | dee67a94d4c6cbd05b8f6e1181498e94caa33334 (diff) | |
KVM: Validate hva in kvm_gpc_activate_hva() to fix __kvm_gpc_refresh() WARN
Check that the virtual address is "ok" when activating a gfn_to_pfn_cache
with a host VA to ensure that KVM never attempts to use a bad address.
This fixes a bug where KVM fails to check the incoming address when
handling KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA in kvm_xen_vcpu_set_attr().
Reported-by: [email protected]
Closes: https://syzkaller.appspot.com/bug?extid=fd555292a1da3180fc82
Tested-by: [email protected]
Signed-off-by: Pei Li <[email protected]>
Reviewed-by: Paul Durrant <[email protected]>
Reviewed-by: David Woodhouse <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[sean: rewrite changelog with --verbose]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions