35 lines
1.5 KiB
Diff
35 lines
1.5 KiB
Diff
From: Ben Hutchings <ben@decadent.org.uk>
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Date: Sat, 20 Nov 2010 02:24:55 +0000
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Subject: [PATCH] decnet: Disable auto-loading as mitigation against local exploits
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Forwarded: not-needed
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Recent review has revealed several bugs in obscure protocol
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implementations that can be exploited by local users for denial of
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service or privilege escalation. We can mitigate the effect of any
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remaining vulnerabilities in such protocols by preventing unprivileged
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users from loading the modules, so that they are only exploitable on
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systems where the administrator has chosen to load the protocol.
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The 'decnet' protocol is unmaintained and of mostly historical
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interest, and the user-space support package 'dnet-common' loads the
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module explicitly. Therefore disable auto-loading.
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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net/decnet/af_decnet.c | 2 +-
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1 files changed, 1 insertions(+), 1 deletions(-)
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Index: linux/net/decnet/af_decnet.c
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===================================================================
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--- linux.orig/net/decnet/af_decnet.c
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+++ linux/net/decnet/af_decnet.c
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@@ -2346,7 +2346,7 @@ static const struct proto_ops dn_proto_o
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MODULE_DESCRIPTION("The Linux DECnet Network Protocol");
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MODULE_AUTHOR("Linux DECnet Project Team");
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MODULE_LICENSE("GPL");
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-MODULE_ALIAS_NETPROTO(PF_DECnet);
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+/* MODULE_ALIAS_NETPROTO(PF_DECnet); */
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static const char banner[] __initconst = KERN_INFO
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"NET4: DECnet for Linux: V.2.5.68s (C) 1995-2003 Linux DECnet Project Team\n";
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