[Xen-devel] [Patch] Illegal grant mapping makes domain zombie

[Kouya SHIMURA <kouya@xxxxxxxxxxxxxx>]

Hi,

I think I found a bug.
__gnttab_map_grant_ref() doesn't perform put_domain()
in some case of fail to map the granted page.
That is, the domain might become zombie when illegal grant mapping.

This patch fixed it.

Regards,
Kouya SHIMURA

Signed-off-by: Kouya SHIMURA <kouya@xxxxxxxxxxxxxx>

diff -r 1d36cca98fc3 xen/common/grant_table.c
--- a/xen/common/grant_table.c  Fri Feb 10 11:35:19 2006
+++ b/xen/common/grant_table.c  Mon Feb 13 14:02:40 2006
@@ -316,6 +316,7 @@
     spin_unlock(&rd->grant_table->lock);
     (void)__put_user(rc, &uop->status);
     put_maptrack_handle(ld->grant_table, handle);
+    put_domain(rd);
     return rc;
 }
 

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