Linux v5.8.13
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
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@ -92,7 +92,7 @@ Summary: The Linux kernel
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%if 0%{?released_kernel}
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# Do we have a -stable update to apply?
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%define stable_update 12
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%define stable_update 13
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# Set rpm version accordingly
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%if 0%{?stable_update}
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%define stablerev %{stable_update}
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@ -875,9 +875,6 @@ Patch109: mmc-sdhci-iproc-Enable-eMMC-DDR-3.3V-support-for-bcm2711.patch
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Patch112: memory-tegra-Remove-GPU-from-DRM-IOMMU-group.patch
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# CVE-2020-25211 rhbz 1877571 1877572
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Patch113: netfilter-ctnetlink-add-range-check-for-l3-l4-protonum.patch
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# rhbz 1873720
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Patch114: v2-nfs-Fix-security-label-length-not-being-reset.patch
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@ -3010,6 +3007,9 @@ fi
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#
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#
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%changelog
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* Thu Oct 1 12:09:16 CDT 2020 Justin M. Forbes <jforbes@fedoraproject.org> - 5.8.13-300
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- Linux v5.8.13
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* Mon Sep 28 06:48:48 CDT 2020 Justin M. Forbes <jforbes@fedoraproject.org> - 5.8.12-300
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- Linux v5.8.12
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@ -1,63 +0,0 @@
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From 1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6 Mon Sep 17 00:00:00 2001
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From: Will McVicker <willmcvicker@google.com>
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Date: Mon, 24 Aug 2020 19:38:32 +0000
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Subject: netfilter: ctnetlink: add a range check for l3/l4 protonum
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The indexes to the nf_nat_l[34]protos arrays come from userspace. So
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check the tuple's family, e.g. l3num, when creating the conntrack in
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order to prevent an OOB memory access during setup. Here is an example
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kernel panic on 4.14.180 when userspace passes in an index greater than
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NFPROTO_NUMPROTO.
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Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
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Modules linked in:...
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Process poc (pid: 5614, stack limit = 0x00000000a3933121)
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CPU: 4 PID: 5614 Comm: poc Tainted: G S W O 4.14.180-g051355490483
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Hardware name: Qualcomm Technologies, Inc. SM8150 V2 PM8150 Google Inc. MSM
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task: 000000002a3dfffe task.stack: 00000000a3933121
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pc : __cfi_check_fail+0x1c/0x24
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lr : __cfi_check_fail+0x1c/0x24
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...
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Call trace:
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__cfi_check_fail+0x1c/0x24
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name_to_dev_t+0x0/0x468
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nfnetlink_parse_nat_setup+0x234/0x258
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ctnetlink_parse_nat_setup+0x4c/0x228
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ctnetlink_new_conntrack+0x590/0xc40
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nfnetlink_rcv_msg+0x31c/0x4d4
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netlink_rcv_skb+0x100/0x184
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nfnetlink_rcv+0xf4/0x180
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netlink_unicast+0x360/0x770
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netlink_sendmsg+0x5a0/0x6a4
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___sys_sendmsg+0x314/0x46c
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SyS_sendmsg+0xb4/0x108
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el0_svc_naked+0x34/0x38
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This crash is not happening since 5.4+, however, ctnetlink still
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allows for creating entries with unsupported layer 3 protocol number.
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Fixes: c1d10adb4a521 ("[NETFILTER]: Add ctnetlink port for nf_conntrack")
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Signed-off-by: Will McVicker <willmcvicker@google.com>
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[pablo@netfilter.org: rebased original patch on top of nf.git]
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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---
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net/netfilter/nf_conntrack_netlink.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
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index 832eabecfbddc..d65846aa80591 100644
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--- a/net/netfilter/nf_conntrack_netlink.c
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+++ b/net/netfilter/nf_conntrack_netlink.c
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@@ -1404,7 +1404,8 @@ ctnetlink_parse_tuple_filter(const struct nlattr * const cda[],
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if (err < 0)
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return err;
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-
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+ if (l3num != NFPROTO_IPV4 && l3num != NFPROTO_IPV6)
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+ return -EOPNOTSUPP;
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tuple->src.l3num = l3num;
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if (flags & CTA_FILTER_FLAG(CTA_IP_DST) ||
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--
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cgit 1.2.3-1.el7
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2
sources
2
sources
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@ -1,2 +1,2 @@
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SHA512 (linux-5.8.tar.xz) = 19c8694bda4533464877e2d976aca95f48c2c40c11efcc1dce0ca91cc5f9826110e277c7de2a49ff99af8ae1c76e275b7c463abf71fbf410956d63066dc4ee53
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SHA512 (patch-5.8.12.xz) = 46aaf68e7771376688401736b8f36cbfa32e0cf2bbaeeeeaaaed0e9c44e62b427db912397f04415e65981eb801f9a23384503e3f005c1bf34d96bdfe39460b06
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SHA512 (patch-5.8.13.xz) = 4686b149cde34dae709a806b283724a970a2a8ce3b5bc858c160618c756ce3d6dd5628d9e91117a682dc011a68ef23cc3e9c16fbce4ff3537d919201a432ade8
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