diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -66,6 +66,7 @@
 #include <sys/kernel.h>
 #include <sys/kthread.h>
 #include <sys/ktr.h>
+#include <sys/limits.h>
 #include <sys/lockf.h>
 #include <sys/malloc.h>
 #include <sys/mount.h>
@@ -7128,8 +7129,12 @@
 
 	ASSERT_VOP_LOCKED(vp, __func__);
 	error = VOP_GETATTR(vp, &vattr, cred);
-	if (__predict_true(error == 0))
-		*size = vattr.va_size;
+	if (__predict_true(error == 0)) {
+		if (vattr.va_size <= OFF_MAX)
+			*size = vattr.va_size;
+		else
+			error = EFBIG;
+	}
 	return (error);
 }
 
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
--- a/sys/kern/vfs_vnops.c
+++ b/sys/kern/vfs_vnops.c
@@ -2656,9 +2656,7 @@
 		if (fsize == 0 && vp->v_type == VCHR &&
 		    fo_ioctl(fp, DIOCGMEDIASIZE, &size, cred, td) == 0)
 			fsize = size;
-		if (noneg &&
-		    (fsize > OFF_MAX ||
-		    (offset > 0 && fsize > OFF_MAX - offset))) {
+		if (noneg && offset > 0 && fsize > OFF_MAX - offset) {
 			error = EOVERFLOW;
 			break;
 		}