svn commit: r364962 - stable/12/sys/security/mac_veriexec

[Simon J. Gerraty]

Author: sjg
Date: Sat Aug 29 16:27:21 2020
New Revision: 364962
URL: https://svnweb.freebsd.org/changeset/base/364962

Log:
  mac_veriexec_fingerprint_check_vnode: v_writecount > 0 means active writers
  
  v_writecount can actually be < 0 for text,
  so check for v_writecount > 0
  
  MFC of r362125
  
  Reviewed by:	stevek

Modified:
  stable/12/sys/security/mac_veriexec/veriexec_fingerprint.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/security/mac_veriexec/veriexec_fingerprint.c
==============================================================================
--- stable/12/sys/security/mac_veriexec/veriexec_fingerprint.c	Sat Aug 29 16:23:00 2020	(r364961)
+++ stable/12/sys/security/mac_veriexec/veriexec_fingerprint.c	Sat Aug 29 16:27:21 2020	(r364962)
@@ -214,7 +214,7 @@ mac_veriexec_fingerprint_check_vnode(struct vnode *vp,
 	int error;
 
 	/* reject fingerprint if writers are active */
-	if (vp->v_writecount)
+	if (vp->v_writecount > 0)
 		return (ETXTBSY);
 
 	if ((vp->v_mount->mnt_flag & MNT_VERIFIED) != 0) {