diff options
Diffstat (limited to 'system/xen/patches/xsa181.patch')
| -rw-r--r-- | system/xen/patches/xsa181.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/system/xen/patches/xsa181.patch b/system/xen/patches/xsa181.patch deleted file mode 100644 index c44541ec4d..0000000000 --- a/system/xen/patches/xsa181.patch +++ /dev/null @@ -1,38 +0,0 @@ -From ee488e2133e581967d13d5287d7bd654e9b2e2a6 Mon Sep 17 00:00:00 2001 -From: Andrew Cooper <andrew.cooper3@citrix.com> -Date: Thu, 2 Jun 2016 14:19:00 +0100 -Subject: [PATCH] xen/arm: Don't free p2m->root in p2m_teardown() before it has - been allocated - -If p2m_init() didn't complete successfully, (e.g. due to VMID -exhaustion), p2m_teardown() is called and unconditionally tries to free -p2m->root before it has been allocated. free_domheap_pages() doesn't -tolerate NULL pointers. - -This is XSA-181 - -Reported-by: Aaron Cornelius <Aaron.Cornelius@dornerworks.com> -Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> -Reviewed-by: Jan Beulich <jbeulich@suse.com> -Reviewed-by: Julien Grall <julien.grall@arm.com> ---- - xen/arch/arm/p2m.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - -diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c -index 838d004..6a19c57 100644 ---- a/xen/arch/arm/p2m.c -+++ b/xen/arch/arm/p2m.c -@@ -1408,7 +1408,8 @@ void p2m_teardown(struct domain *d) - while ( (pg = page_list_remove_head(&p2m->pages)) ) - free_domheap_page(pg); - -- free_domheap_pages(p2m->root, P2M_ROOT_ORDER); -+ if ( p2m->root ) -+ free_domheap_pages(p2m->root, P2M_ROOT_ORDER); - - p2m->root = NULL; - --- -2.1.4 - |