diff options
Diffstat (limited to 'system/xen/xsa/xsa253.patch')
| -rw-r--r-- | system/xen/xsa/xsa253.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/system/xen/xsa/xsa253.patch b/system/xen/xsa/xsa253.patch new file mode 100644 index 0000000000000..19e4269358522 --- /dev/null +++ b/system/xen/xsa/xsa253.patch @@ -0,0 +1,26 @@ +From: Andrew Cooper <andrew.cooper3@citrix.com> +Subject: x86/msr: Free msr_vcpu_policy during vcpu destruction + +c/s 4187f79dc7 "x86/msr: introduce struct msr_vcpu_policy" introduced a +per-vcpu memory allocation, but failed to free it in the clean vcpu +destruction case. + +This is XSA-253 + +Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> +Reviewed-by: Jan Beulich <jbeulich@suse.com> + +diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c +index b17468c..0ae715d 100644 +--- a/xen/arch/x86/domain.c ++++ b/xen/arch/x86/domain.c +@@ -382,6 +382,9 @@ void vcpu_destroy(struct vcpu *v) + + vcpu_destroy_fpu(v); + ++ xfree(v->arch.msr); ++ v->arch.msr = NULL; ++ + if ( !is_idle_domain(v->domain) ) + vpmu_destroy(v); + |