Index: bin/cat/cat.c
===================================================================
--- bin/cat/cat.c
+++ bin/cat/cat.c
@@ -155,7 +155,7 @@
 		err(EXIT_FAILURE, "unable to create Casper");
 
 	fa = fileargs_cinit(casper, argc, argv, O_RDONLY, 0,
-	    cap_rights_init(&rights, CAP_READ | CAP_FSTAT | CAP_FCNTL),
+	    cap_rights_init(&rights, CAP_READ | CAP_FSTAT | CAP_FCNTL | CAP_SEEK),
 	    FA_OPEN | FA_REALPATH);
 	if (fa == NULL)
 		err(EXIT_FAILURE, "unable to create fileargs");
Index: sys/kern/vfs_syscalls.c
===================================================================
--- sys/kern/vfs_syscalls.c
+++ sys/kern/vfs_syscalls.c
@@ -4899,7 +4899,7 @@
 		len = SSIZE_MAX;
 
 	/* Get the file structures for the file descriptors. */
-	error = fget_read(td, infd, &cap_read_rights, &infp);
+	error = fget_read(td, infd, &cap_pread_rights, &infp);
 	if (error != 0)
 		goto out;
 	if (infp->f_ops == &badfileops) {
@@ -4910,7 +4910,7 @@
 		error = EINVAL;
 		goto out;
 	}
-	error = fget_write(td, outfd, &cap_write_rights, &outfp);
+	error = fget_write(td, outfd, &cap_pwrite_rights, &outfp);
 	if (error != 0)
 		goto out;
 	if (outfp->f_ops == &badfileops) {