openwrtv3/target/linux/generic/backport-4.14/272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch
Stijn Tintel e52f3e9b13 kernel: bump 4.14 to 4.14.48
Remove upstreamed patches:
generic/pending/101-clocksource-mips-gic-timer-fix-clocksource-counter-w.patch
generic/pending/103-MIPS-c-r4k-fix-data-corruption-related-to-cache-coherence.patch
generic/pending/182-net-qmi_wwan-add-BroadMobi-BM806U-2020-2033.patch
lantiq/0025-MIPS-lantiq-gphy-Remove-reboot-remove-reset-asserts.patch
Update patches that no longer apply:
generic/pending/811-pci_disable_usb_common_quirks.patch
ath79/0009-MIPS-ath79-add-lots-of-missing-registers.patch

Fixes CVE-2018-6412.

Compile-tested: octeon, x86/64.
Runtime-tested: octeon, x86/64.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2018-06-05 22:54:00 +03:00

55 lines
1.6 KiB
Diff

From 649affd04813c43e0a72886517fcfccd63230981 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 29 Jun 2015 16:53:03 +0200
Subject: uapi/if_ether.h: prevent redefinition of struct ethhdr
Musl provides its own ethhdr struct definition. Add a guard to prevent
its definition of the appropriate musl header has already been included.
glibc does not implement this header, but when glibc will implement this
they can just define __UAPI_DEF_ETHHDR 0 to make it work with the
kernel.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
include/uapi/linux/if_ether.h | 3 +++
include/uapi/linux/libc-compat.h | 6 ++++++
2 files changed, 9 insertions(+)
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -23,6 +23,7 @@
#define _UAPI_LINUX_IF_ETHER_H
#include <linux/types.h>
+#include <linux/libc-compat.h>
/*
* IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
@@ -150,11 +151,13 @@
* This is an Ethernet frame header.
*/
+#if __UAPI_DEF_ETHHDR
struct ethhdr {
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
__be16 h_proto; /* packet type ID field */
} __attribute__((packed));
+#endif
#endif /* _UAPI_LINUX_IF_ETHER_H */
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -264,4 +264,10 @@
#endif /* __GLIBC__ */
+/* Definitions for if_ether.h */
+/* allow libcs like musl to deactivate this, glibc does not implement this. */
+#ifndef __UAPI_DEF_ETHHDR
+#define __UAPI_DEF_ETHHDR 1
+#endif
+
#endif /* _UAPI_LIBC_COMPAT_H */