From 7f99c05ded1999e9cf85a9d1f3586dfa45daa531 Mon Sep 17 00:00:00 2001 From: Andrew Cooper Date: Thu, 21 Jan 2021 16:20:00 +0100 Subject: [PATCH] xen/memory: Fix compat XENMEM_acquire_resource for size requests Copy the nr_frames from the structure which actually has the correct value, so the caller doesn't unconditionally receive 0. Signed-off-by: Andrew Cooper Reviewed-by: Paul Durrant master commit: 414be7b66349e7dca42bc1fd47c2b2f5b2d27432 master date: 2021-01-12 18:17:02 +0000 --- xen/common/compat/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/common/compat/memory.c b/xen/common/compat/memory.c index 3851f756c7..ed92e05b08 100644 --- a/xen/common/compat/memory.c +++ b/xen/common/compat/memory.c @@ -599,7 +599,7 @@ int compat_memory_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) compat) if ( __copy_field_to_guest( guest_handle_cast(compat, compat_mem_acquire_resource_t), - &cmp.mar, nr_frames) ) + nat.mar, nr_frames) ) return -EFAULT; } else -- 2.39.5