Author: asomers
Date: Fri Aug  3 14:22:16 2018
New Revision: 337251
URL: https://svnweb.freebsd.org/changeset/base/337251

Log:
  MFC r334296:
  
  Fix "Bad tailq" panic when auditing auditon(A_SETCLASS, ...)
  
  Due to an oversight in r195280, auditon(A_SETCLASS, ...) would cause a tailq
  element to get added to the tailq twice, resulting in a circular tailq. This
  panics when INVARIANTS are on.
  
  Differential Revision:        https://reviews.freebsd.org/D15381

Modified:
  stable/10/sys/security/audit/audit_bsm.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/security/audit/audit_bsm.c
==============================================================================
--- stable/10/sys/security/audit/audit_bsm.c    Fri Aug  3 14:19:56 2018        
(r337250)
+++ stable/10/sys/security/audit/audit_bsm.c    Fri Aug  3 14:22:16 2018        
(r337251)
@@ -418,7 +418,6 @@ audit_sys_auditon(struct audit_record *ar, struct au_r
                break;
 
        case A_SETCLASS:
-               kau_write(rec, tok);
                tok = au_to_arg32(2, "setclass:ec_event",
                    ar->ar_arg_auditon.au_evclass.ec_number);
                kau_write(rec, tok);
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