b5fb5e90fb
memory in rtl8139 device model xsa140-qemuu-1.patch xsa140-qemuu-2.patch xsa140-qemuu-3.patch xsa140-qemuu-4.patch xsa140-qemuu-5.patch xsa140-qemuu-6.patch xsa140-qemuu-7.patch xsa140-qemut-1.patch xsa140-qemut-2.patch xsa140-qemut-3.patch xsa140-qemut-4.patch xsa140-qemut-5.patch xsa140-qemut-6.patch xsa140-qemut-7.patch - bsc#939709 - VUL-0: XSA-139: xen: Use after free in QEMU/Xen block unplug protocol xsa139-qemuu.patch - bsc#937371 - xen vm's running after reboot xendomains-libvirtd-conflict.patch - bsc#938344 - VUL-0: CVE-2015-5154: qemu,kvm,xen: host code execution via IDE subsystem CD-ROM CVE-2015-5154-qemuu-check-array-bounds-before-writing-to-io_buffer.patch CVE-2015-5154-qemut-check-array-bounds-before-writing-to-io_buffer.patch CVE-2015-5154-qemuu-fix-START-STOP-UNIT-command-completion.patch CVE-2015-5154-qemut-fix-START-STOP-UNIT-command-completion.patch CVE-2015-5154-qemuu-clear-DRQ-after-handling-all-expected-accesses.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=371
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
References: bsc#939712 XSA-140
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From 6c79ea275d72bc1fd88bdcf1e7d231b2c9c865de Mon Sep 17 00:00:00 2001
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From: Stefan Hajnoczi <stefanha@redhat.com>
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Date: Wed, 15 Jul 2015 18:17:02 +0100
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Subject: [PATCH 5/7] rtl8139: check IP Total Length field
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The IP Total Length field includes the IP header and data. Make sure it
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is valid and does not exceed the Ethernet payload size.
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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---
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hw/net/rtl8139.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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Index: xen-4.5.1-testing/tools/qemu-xen-dir-remote/hw/net/rtl8139.c
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===================================================================
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--- xen-4.5.1-testing.orig/tools/qemu-xen-dir-remote/hw/net/rtl8139.c
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+++ xen-4.5.1-testing/tools/qemu-xen-dir-remote/hw/net/rtl8139.c
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@@ -2202,7 +2202,12 @@ static int rtl8139_cplus_transmit_one(RT
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}
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ip_protocol = ip->ip_p;
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- ip_data_len = be16_to_cpu(ip->ip_len) - hlen;
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+
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+ ip_data_len = be16_to_cpu(ip->ip_len);
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+ if (ip_data_len < hlen || ip_data_len > eth_payload_len) {
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+ goto skip_offload;
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+ }
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+ ip_data_len -= hlen;
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if (txdw0 & CP_TX_IPCS)
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{
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