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>