diff options
| author | Jan Beulich <jbeulich@suse.com> | 2012-10-25 15:23:50 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2012-10-25 15:23:50 +0200 |
| commit | 48857ea790e53e6d118de72204b12fcacceabd9a (patch) | |
| tree | 7a9560a879af44be0e42a04d857dde347707c353 | |
| parent | b71cf4adf804df4a7c039bbdb7f0c45346add4ce (diff) | |
| download | xen-48857ea790e53e6d118de72204b12fcacceabd9a.tar.gz xen-48857ea790e53e6d118de72204b12fcacceabd9a.tar.bz2 xen-48857ea790e53e6d118de72204b12fcacceabd9a.zip | |
x86/oprof: adjust off-by-one counter range checks
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
xen-unstable changeset: 26061:4b4c0c7a6031
xen-unstable date: Wed Oct 17 09:23:10 UTC 2012
| -rw-r--r-- | xen/arch/x86/oprofile/xenoprof.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/arch/x86/oprofile/xenoprof.c b/xen/arch/x86/oprofile/xenoprof.c index 7c0acfde6b..dedfca97b0 100644 --- a/xen/arch/x86/oprofile/xenoprof.c +++ b/xen/arch/x86/oprofile/xenoprof.c @@ -26,7 +26,7 @@ int xenoprof_arch_counter(XEN_GUEST_HANDLE(void) arg) if ( copy_from_guest(&counter, arg, 1) ) return -EFAULT; - if ( counter.ind > OP_MAX_COUNTER ) + if ( counter.ind >= OP_MAX_COUNTER ) return -E2BIG; counter_config[counter.ind].count = counter.count; @@ -64,7 +64,7 @@ int compat_oprof_arch_counter(XEN_GUEST_HANDLE(void) arg) if ( copy_from_guest(&counter, arg, 1) ) return -EFAULT; - if ( counter.ind > OP_MAX_COUNTER ) + if ( counter.ind >= OP_MAX_COUNTER ) return -E2BIG; counter_config[counter.ind].count = counter.count; |