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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
	Sasha Levin <sashal@kernel.org>,
	netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
	netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 31/73] netfilter: nft_chain_nat: inet family is missing module ownership
Date: Wed, 18 Mar 2020 16:52:55 -0400	[thread overview]
Message-ID: <20200318205337.16279-31-sashal@kernel.org> (raw)
In-Reply-To: <20200318205337.16279-1-sashal@kernel.org>

From: Pablo Neira Ayuso <pablo@netfilter.org>

[ Upstream commit 6a42cefb25d8bdc1b391f4a53c78c32164eea2dd ]

Set owner to THIS_MODULE, otherwise the nft_chain_nat module might be
removed while there are still inet/nat chains in place.

[  117.942096] BUG: unable to handle page fault for address: ffffffffa0d5e040
[  117.942101] #PF: supervisor read access in kernel mode
[  117.942103] #PF: error_code(0x0000) - not-present page
[  117.942106] PGD 200c067 P4D 200c067 PUD 200d063 PMD 3dc909067 PTE 0
[  117.942113] Oops: 0000 [#1] PREEMPT SMP PTI
[  117.942118] CPU: 3 PID: 27 Comm: kworker/3:0 Not tainted 5.6.0-rc3+ #348
[  117.942133] Workqueue: events nf_tables_trans_destroy_work [nf_tables]
[  117.942145] RIP: 0010:nf_tables_chain_destroy.isra.0+0x94/0x15a [nf_tables]
[  117.942149] Code: f6 45 54 01 0f 84 d1 00 00 00 80 3b 05 74 44 48 8b 75 e8 48 c7 c7 72 be de a0 e8 56 e6 2d e0 48 8b 45 e8 48 c7 c7 7f be de a0 <48> 8b 30 e8 43 e6 2d e0 48 8b 45 e8 48 8b 40 10 48 85 c0 74 5b 8b
[  117.942152] RSP: 0018:ffffc9000015be10 EFLAGS: 00010292
[  117.942155] RAX: ffffffffa0d5e040 RBX: ffff88840be87fc2 RCX: 0000000000000007
[  117.942158] RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffffffffa0debe7f
[  117.942160] RBP: ffff888403b54b50 R08: 0000000000001482 R09: 0000000000000004
[  117.942162] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8883eda7e540
[  117.942164] R13: dead000000000122 R14: dead000000000100 R15: ffff888403b3db80
[  117.942167] FS:  0000000000000000(0000) GS:ffff88840e4c0000(0000) knlGS:0000000000000000
[  117.942169] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.942172] CR2: ffffffffa0d5e040 CR3: 00000003e4c52002 CR4: 00000000001606e0
[  117.942174] Call Trace:
[  117.942188]  nf_tables_trans_destroy_work.cold+0xd/0x12 [nf_tables]
[  117.942196]  process_one_work+0x1d6/0x3b0
[  117.942200]  worker_thread+0x45/0x3c0
[  117.942203]  ? process_one_work+0x3b0/0x3b0
[  117.942210]  kthread+0x112/0x130
[  117.942214]  ? kthread_create_worker_on_cpu+0x40/0x40
[  117.942221]  ret_from_fork+0x35/0x40

nf_tables_chain_destroy() crashes on module_put() because the module is
gone.

Fixes: d164385ec572 ("netfilter: nat: add inet family nat support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_chain_nat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/netfilter/nft_chain_nat.c b/net/netfilter/nft_chain_nat.c
index ff9ac8ae0031f..eac4a901233f2 100644
--- a/net/netfilter/nft_chain_nat.c
+++ b/net/netfilter/nft_chain_nat.c
@@ -89,6 +89,7 @@ static const struct nft_chain_type nft_chain_nat_inet = {
 	.name		= "nat",
 	.type		= NFT_CHAIN_T_NAT,
 	.family		= NFPROTO_INET,
+	.owner		= THIS_MODULE,
 	.hook_mask	= (1 << NF_INET_PRE_ROUTING) |
 			  (1 << NF_INET_LOCAL_IN) |
 			  (1 << NF_INET_LOCAL_OUT) |
-- 
2.20.1


  parent reply	other threads:[~2020-03-18 21:07 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18 20:52 [PATCH AUTOSEL 5.4 01/73] cgroup-v1: cgroup_pidlist_next should update position index Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 02/73] cgroup: Iterate tasks that did not finish do_exit() Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 03/73] clk: imx8mn: Fix incorrect clock defines Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 04/73] batman-adv: Don't schedule OGM for disabled interface Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 05/73] pinctrl: meson-gxl: fix GPIOX sdio pins Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 06/73] pinctrl: imx: scu: Align imx sc msg structs to 4 Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 07/73] nfs: add minor version to nfs_server_key for fscache Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 08/73] pinctrl: core: Remove extra kref_get which blocks hogs being freed Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 09/73] r8152: check disconnect status after long sleep Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 10/73] net: dsa: mv88e6xxx: fix lockup on warm boot Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 11/73] net: phy: avoid clearing PHY interrupts twice in irq handler Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 12/73] bnxt_en: reinitialize IRQs when MTU is modified Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 13/73] bnxt_en: fix error handling when flashing from file Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 14/73] cpupower: avoid multiple definition with gcc -fno-common Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 15/73] fib: add missing attribute validation for tun_id Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 16/73] can: add missing attribute validation for termination Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 17/73] macsec: add missing attribute validation for port Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 18/73] team: add missing attribute validation for port ifindex Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 19/73] team: add missing attribute validation for array index Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 20/73] netfilter: cthelper: add missing attribute validation for cthelper Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 21/73] netfilter: nft_payload: add missing attribute validation for payload csum flags Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 22/73] netfilter: nft_tunnel: add missing attribute validation for tunnels Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 23/73] net: phy: bcm63xx: fix OOPS due to missing driver name Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 24/73] drivers/of/of_mdio.c:fix of_mdiobus_register() Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 25/73] cgroup1: don't call release_agent when it is "" Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 26/73] netfilter: nf_tables: dump NFTA_CHAIN_FLAGS attribute Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 27/73] netfilter: nf_tables: fix infinite loop when expr is not available Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 28/73] slip: make slhc_compress() more robust against malicious packets Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 29/73] net: hns3: fix a not link up issue when fibre port supports autoneg Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 30/73] futex: Fix inode life-time issue Sasha Levin
2020-03-23 19:18   ` Jann Horn
2020-03-24  8:06     ` Greg Kroah-Hartman
2020-04-08  9:48     ` backport request for 3.16 [was: Re: [PATCH AUTOSEL 5.4 30/73] futex: Fix inode life-time issue] Jann Horn
2020-03-18 20:52 ` Sasha Levin [this message]
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 32/73] dt-bindings: net: FMan erratum A050385 Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 33/73] arm64: dts: ls1043a: " Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 34/73] fsl/fman: detect " Sasha Levin
2020-03-18 20:52 ` [PATCH AUTOSEL 5.4 35/73] bonding/alb: make sure arp header is pulled before accessing it Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 36/73] virtio_ring: Fix mem leak with vring_new_virtqueue() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 37/73] virtio-blk: fix hw_queue stopped on arbitrary error Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 38/73] virtio_balloon: Adjust label in virtballoon_probe Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 39/73] ipvlan: do not add hardware address of master to its unicast filter list Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 40/73] net: stmmac: dwmac1000: Disable ACS if enhanced descs are not used Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 41/73] drm/amd/display: update soc bb for nv14 Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 42/73] drm/amdgpu: correct ROM_INDEX/DATA offset for VEGA20 Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 43/73] futex: Unbreak futex hashing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 44/73] ipvlan: don't deref eth hdr before checking it's set Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 45/73] ipvlan: add cond_resched_rcu() while processing muticast backlog Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 46/73] macvlan: add cond_resched() during multicast processing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 47/73] ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 48/73] drm/exynos: Fix cleanup of IOMMU related objects Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 49/73] i2c: i801: Do not add ICH_RES_IO_SMI for the iTCO_wdt device Sasha Levin
2020-03-19  7:30   ` Wolfram Sang
2020-03-29 20:07     ` Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 50/73] iommu/vt-d: Fix RCU-list bugs in intel_iommu_init() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 51/73] iommu/vt-d: Silence RCU-list debugging warnings Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 52/73] i2c: gpio: suppress error on probe defer Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 53/73] s390/qeth: don't reset default_out_queue Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 54/73] s390/qeth: handle error when backing RX buffer Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 55/73] scsi: ipr: Fix softlockup when rescanning devices in petitboot Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 56/73] nl80211: add missing attribute validation for critical protocol indication Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 57/73] nl80211: add missing attribute validation for beacon report scanning Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 58/73] nl80211: add missing attribute validation for channel switch Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 59/73] mac80211: Do not send mesh HWMP PREQ if HWMP is disabled Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 60/73] driver code: clarify and fix platform device DMA mask allocation Sasha Levin
2020-03-19  6:49   ` Greg Kroah-Hartman
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 61/73] dpaa_eth: Remove unnecessary boolean expression in dpaa_get_headroom Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 62/73] net: fec: validate the new settings in fec_enet_set_coalesce() Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 63/73] sxgbe: Fix off by one in samsung driver strncpy size arg Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 64/73] net: mvmdio: avoid error message for optional IRQ Sasha Levin
2020-03-18 20:57   ` Chris Packham
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 65/73] net: hns3: fix "tc qdisc del" failed issue Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 66/73] net: systemport: fix index check to avoid an array out of bounds access Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 67/73] iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 68/73] iommu/vt-d: Fix debugfs register reads Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 69/73] i2c: acpi: put device when verifying client fails Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 70/73] iommu/vt-d: Fix the wrong printing in RHSA parsing Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 71/73] iommu/vt-d: Ignore devices with out-of-spec domain number Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 72/73] iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE Sasha Levin
2020-03-18 20:53 ` [PATCH AUTOSEL 5.4 73/73] iommu/vt-d: Populate debugfs if IOMMUs are detected Sasha Levin

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