Author: brueffer
Date: Wed May 16 19:25:50 2012
New Revision: 235511
URL: http://svn.freebsd.org/changeset/base/235511
Log:
MFC: r234957
Check vplabel for NULL before dereferencing it. Fixes a panic
when running atop with MAC_MLS enabled.
Modified:
stable/9/sys/security/mac_mls/mac_mls.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/security/mac_mls/mac_mls.c
==============================================================================
--- stable/9/sys/security/mac_mls/mac_mls.c Wed May 16 17:51:56 2012
(r235510)
+++ stable/9/sys/security/mac_mls/mac_mls.c Wed May 16 19:25:50 2012
(r235511)
@@ -2028,6 +2028,9 @@ mls_system_check_acct(struct ucred *cred
if (!mls_enabled)
return (0);
+ if (vplabel == NULL)
+ return (0);
+
subj = SLOT(cred->cr_label);
obj = SLOT(vplabel);
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