mac_veriexec_fingerprint_check_vnode: v_writecount > 0 means active w…

…riters v_writecount can actually be < 0 for text, so check for v_writecount > 0 MFC of r362125 Reviewed by: stevek
Ryloguy · Aug 29, 2020 · b1155d2 · b1155d2
1 parent 5fd4398
commit b1155d2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sys/security/mac_veriexec/veriexec_fingerprint.c b/sys/security/mac_veriexec/veriexec_fingerprint.c
@@ -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) {