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authorDavid Gwynne <dlg@cvs.openbsd.org>2024-08-05 23:56:11 +0000
committerDavid Gwynne <dlg@cvs.openbsd.org>2024-08-05 23:56:11 +0000
commitf7c8b8772be218d5e88ae5b8c27e3480518a1a82 (patch)
treeb1d177716d05e298cc18dfb3b198a507fd4547db /share/man/man4
parent62468f66743a951748c7438e2baff7efc85a415c (diff)
restrict the maximum wait time you can set via BIOCSWTIMEOUT to 5 minutes.
this is avoids passing excessively large values to timeout_add_nsec. Reported-by: syzbot+f650785d4f2b3fe28284@syzkaller.appspotmail.com
Diffstat (limited to 'share/man/man4')
-rw-r--r--share/man/man4/bpf.45
1 files changed, 3 insertions, 2 deletions
diff --git a/share/man/man4/bpf.4 b/share/man/man4/bpf.4
index 46429f1cde5..4990dc8a109 100644
--- a/share/man/man4/bpf.4
+++ b/share/man/man4/bpf.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: bpf.4,v 1.45 2023/03/09 06:01:40 dlg Exp $
+.\" $OpenBSD: bpf.4,v 1.46 2024/08/05 23:56:10 dlg Exp $
.\" $NetBSD: bpf.4,v 1.7 1995/09/27 18:31:50 thorpej Exp $
.\"
.\" Copyright (c) 1990 The Regents of the University of California.
@@ -23,7 +23,7 @@
.\" This document is derived in part from the enet man page (enet.4)
.\" distributed with 4.3BSD Unix.
.\"
-.Dd $Mdocdate: March 9 2023 $
+.Dd $Mdocdate: August 5 2024 $
.Dt BPF 4
.Os
.Sh NAME
@@ -315,6 +315,7 @@ the kernel buffer becoming readable.
By default, or when reset, the wait timeout is infinite, meaning
the age of packets in the kernel buffer does not make the buffer
readable.
+The maximum wait time that can be set is 5 minutes (300 seconds).
.Pp
.It Dv BIOCSETF Fa "struct bpf_program *"
Sets the filter program used by the kernel to discard uninteresting packets.