Re: memory leak in create_ctx

From: Dmitry Vyukov
Date: Tue Jun 11 2019 - 07:49:58 EST

,On Sun, Jun 9, 2019 at 4:56 AM Hillf Danton <hdanton@xxxxxxxx> wrote:
>
>
> Hi
>
> On Sat, 08 Jun 2019 12:13:06 -0700 (PDT) syzbot wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit: 79c3ba32 Merge tag 'drm-fixes-2019-06-07-1' of git://anong..
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=170e0bfea00000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=d5c73825cbdc7326
> > dashboard link: https://syzkaller.appspot.com/bug?extid=06537213db7ba2745c4a
> > compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10aa806aa00000
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+06537213db7ba2745c4a@xxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
> > 2019/06/08 14:55:51 executed programs: 15
> > 2019/06/08 14:55:56 executed programs: 31
> > 2019/06/08 14:56:02 executed programs: 51
> > BUG: memory leak
> > unreferenced object 0xffff888117ceae00 (size 512):
> > comm "syz-executor.3", pid 7233, jiffies 4294949016 (age 13.640s)
> > hex dump (first 32 bytes):
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > backtrace:
> > [<00000000e6550967>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
> > [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
> > [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
> > [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
> > [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
> > [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
> > [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
> > [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
> > [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
> > [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
> > [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
> > [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60 net/ipv4/tcp.c:2784
> > [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
> > [<00000000c840962c>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3124
> > [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
> > [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
> > [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
> > [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
> > [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
> > [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> >
> > BUG: memory leak
> > unreferenced object 0xffff88810965dc00 (size 512):
> > comm "syz-executor.2", pid 7235, jiffies 4294949016 (age 13.640s)
> > hex dump (first 32 bytes):
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > backtrace:
> > [<00000000e6550967>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
> > [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
> > [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
> > [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
> > [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
> > [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
> > [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
> > [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
> > [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
> > [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
> > [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
> > [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60 net/ipv4/tcp.c:2784
> > [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
> > [<00000000c840962c>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3124
> > [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
> > [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
> > [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
> > [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
> > [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
> > [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> >
> > BUG: memory leak
> > unreferenced object 0xffff8881207d7600 (size 512):
> > comm "syz-executor.5", pid 7244, jiffies 4294949019 (age 13.610s)
> > hex dump (first 32 bytes):
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> > backtrace:
> > [<00000000e6550967>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
> > [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
> > [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
> > [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
> > [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
> > [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
> > [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
> > [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
> > [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
> > [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
> > [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
> > [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60 net/ipv4/tcp.c:2784
> > [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
> > [<00000000c840962c>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3124
> > [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
> > [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
> > [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
> > [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
> > [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0 ntry/common.c:301
> > [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> >
> >
> >
> > ---
> > This bug is generated by a bot. It may contain errors.
> > See https://goo.gl/tpsmEJ for more information about syzbot.
> > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxxx
> >
> > syzbot will keep track of this bug report. See:
> > https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> > syzbot can test patches for this bug, for details see:
> > https://goo.gl/tpsmEJ#testing-patches
> >
> Ignore my noise if you have no interest seeing the syzbot report.
>
> The following tiny diff, made in the hope that it may help you perhaps
> handle the report, adds memory barriers before and after allocating ctx
> slab to check the current ctx, and returns it if valid.

Hi Hillf,

Do you see the bug? Jakub said he can't repro.
The repro has these suspicious bpf syscalls and there is currently
some nasty bpf bug that plagues us and leads to random assorted
splats.
I've run the repro as "./syz-execprog -repeat=0 -procs=6 repro" and
in 10 mins I got the following splat, which indeed suggests a bpf bug.
But we of course can have both bpf stack overflow and a memory leak in tls.



2019/06/11 10:26:52 executed programs: 887
2019/06/11 10:26:57 executed programs: 899
2019/06/11 10:27:02 executed programs: 916
[ 429.171049][ T9870] BUG: stack guard page was hit at
00000000a78467b9 (stack is 000000001452e9df..000000004fb93e51)
[ 429.173714][ T9870] kernel stack overflow (double-fault): 0000 [#1]
PREEMPT SMP
[ 429.174819][ T9870] CPU: 3 PID: 9870 Comm: syz-executor Not tainted
5.2.0-rc4+ #6
[ 429.175901][ T9870] Hardware name: QEMU Standard PC (i440FX + PIIX,
1996), BIOS 1.10.2-1 04/01/2014
[ 429.177215][ T9870] RIP: 0010:tcp_bpf_unhash+0xc/0x80
[ 429.177950][ T9870] Code: 28 4c 89 ee 48 89 df ff 10 e8 30 56 66 fe
5b 41 5c 41 5d 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 55 41
54 53 48 89 fb <e8> 0f 56 66 fe e8 6a bb 5f fe 4c 8b a3 80 02 00 00 4d
85 e4 74 2f
[ 429.180707][ T9870] RSP: 0018:ffffc90003690000 EFLAGS: 00010293
[ 429.181562][ T9870] RAX: ffff888066a72000 RBX: ffff88806695b640
RCX: ffffffff82c82f80
[ 429.182681][ T9870] RDX: 0000000000000000 RSI: 0000000000000007
RDI: ffff88806695b640
[ 429.183807][ T9870] RBP: ffffc90003690018 R08: 0000000000000000
R09: 0000000000000000
[ 429.184931][ T9870] R10: ffffc90003693e70 R11: 0000000000000000
R12: ffffffff82c82f10
[ 429.186104][ T9870] R13: 0000000000000007 R14: ffff88806695b710
R15: ffff88806695b710
[ 429.187303][ T9870] FS: 00005555569fc940(0000)
GS:ffff88807db80000(0000) knlGS:0000000000000000
[ 429.188678][ T9870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 429.189674][ T9870] CR2: ffffc9000368fff8 CR3: 00000000762bc002
CR4: 00000000007606e0
[ 429.190880][ T9870] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 429.192094][ T9870] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 429.193295][ T9870] PKRU: 55555554
[ 429.193829][ T9870] Call Trace:
[ 429.194326][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.195020][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.195706][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.196400][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.197079][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.197773][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.198454][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.199148][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.199833][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.200527][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.201208][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.201909][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.202590][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.203283][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.203973][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.204667][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.205347][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.206041][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.206721][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.207418][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.208100][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.208794][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.209474][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.210167][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.210846][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.211548][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.212228][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.212920][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.213600][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.214292][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.214973][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.215671][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.216353][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.217045][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.217728][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.218421][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.219101][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.219802][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.220483][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.221177][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.221857][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.222569][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.223253][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.223952][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.224636][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.225331][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.226013][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.226712][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.227395][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.228100][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.228783][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.229478][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.230161][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.230855][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.231539][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.232240][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.232921][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.233616][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.234315][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.235013][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.235702][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.236399][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.237083][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.237783][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.238467][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.239165][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.239855][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.240556][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.241241][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.241938][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.242622][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.243320][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.244008][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.244705][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.245388][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.246114][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.246800][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.247503][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.248187][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.248883][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.249569][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.250266][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.250951][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.251658][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.252342][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.253041][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.253726][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.254427][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.255121][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.255822][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.256505][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.257201][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.257890][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.258605][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.259291][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.259994][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.260681][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.261380][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.262067][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.262766][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.263457][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.264157][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.264842][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.265542][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.266200][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.266855][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.267501][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.268175][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.268814][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.269476][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.270142][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.270825][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.271494][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.272167][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.272839][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.273514][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.274179][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.274857][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.275529][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.276220][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.276892][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.277573][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.278247][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.278934][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.279608][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.280293][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.280969][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.281670][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.282360][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.283062][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.283771][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.284477][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.285170][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.285875][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.286565][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.287269][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.287977][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.288681][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.289376][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.290079][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.290769][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.291477][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.292177][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.292886][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.293558][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.294258][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.294930][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.295625][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.296289][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.296984][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.297662][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.298354][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.299036][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.299728][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.300412][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.301106][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.301800][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.302497][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.303179][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.303907][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.304599][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.305307][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.306001][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.306707][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.307414][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.308123][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.308817][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.309524][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.310217][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.310924][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.311631][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.312341][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.313036][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.313745][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.314457][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.315161][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.315860][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.316562][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.317252][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.317962][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.318653][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.319356][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.320049][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.320760][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.321332][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.321916][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.322484][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.323068][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.323643][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.324221][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.324792][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.325375][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.325948][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.326532][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.327104][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.327690][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.328270][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.328854][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.329427][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.330010][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.330583][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.331166][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.331743][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.332325][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.332913][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.333493][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.334063][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.334643][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.335213][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.335794][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.336364][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.336945][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.337515][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.338097][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.338664][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.339244][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.339822][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.340400][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.340970][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.341551][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.342121][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.342716][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.343284][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.343864][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.344436][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.345010][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.345575][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.346154][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.346717][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.347293][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.347873][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.348453][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.349020][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.349596][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.350164][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.350743][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.351306][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.351895][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.352479][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.353056][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.353621][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.354196][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.354761][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.355335][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.355899][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.356481][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.357046][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.357621][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.358184][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.358760][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.359336][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.359924][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.360489][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.361064][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.361627][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.362203][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.362785][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.363358][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.363941][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.364512][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.365075][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.365648][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.366212][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.366786][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.367349][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.367926][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.368488][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.369063][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.369627][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.370201][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.370765][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.371340][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.371937][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.372512][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.373091][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.373661][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.374216][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.374788][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.375352][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.375929][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.376489][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.377060][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.377622][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.378195][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.378755][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.379328][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.379896][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.380468][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.381029][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.381600][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.382161][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.382748][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.383309][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.383884][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.384449][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.385019][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.385580][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.386161][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.386725][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.387300][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.387867][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.388443][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.389006][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.389579][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.390144][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.390720][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.391282][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.391859][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.392419][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.392991][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.393552][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.394126][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.394688][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.395261][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.395827][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.396401][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.396964][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.397536][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.398096][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.398669][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.399230][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.399803][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.400364][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.400935][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.401495][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.402066][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.402629][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.403200][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.403773][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.404351][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.404917][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.405488][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.406056][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.406628][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.407189][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.407766][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.408327][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.408897][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.409458][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.410029][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.410589][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.411160][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.411738][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.412308][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.412869][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.413442][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.414004][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.414576][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.415138][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.415713][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.416275][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.416848][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.417410][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.417988][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.418550][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.419122][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.419689][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.420259][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.420819][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.421390][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.421951][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.422529][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.423090][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.423670][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.424235][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.424807][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.425369][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.425942][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.426504][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.427077][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.427643][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.428218][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.428779][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.429351][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.429911][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.430482][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.431045][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.431621][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.432182][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.432755][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.433316][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.433895][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.434456][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.435028][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.435592][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.436172][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.436733][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.437305][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.437865][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.438437][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.438997][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.439570][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.440133][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.440700][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.441261][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.441832][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.442391][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.442962][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.443525][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.444098][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.444660][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.445232][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.445793][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.446362][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.446922][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.447494][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.448054][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.448624][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.449184][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.449754][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.450314][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.450884][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.451448][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.452023][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.452583][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.453179][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.453744][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.454315][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.454874][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.455447][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.456016][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.456587][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.457146][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.457728][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.458295][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.458867][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.459430][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.460007][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.460568][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.461141][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.461702][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.462273][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.462836][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.463412][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.463976][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.464549][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.465113][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.465694][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.466257][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.466831][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.467394][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.467973][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.468535][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.469108][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.469668][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.470238][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.470800][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.471387][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.471954][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.472525][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.473085][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.473656][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.474217][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.474789][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.475349][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.475932][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.476493][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.477064][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.477625][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.478196][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.478755][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.479327][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.479892][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.480465][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.481025][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.481595][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.482155][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.482726][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.483285][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.483863][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.484424][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.484996][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.485557][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.486128][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.486694][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.487267][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.487839][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.488410][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.488970][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.489539][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.490098][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.490668][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.491227][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.491801][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.492363][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.492934][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.493495][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.494068][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.494628][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.495201][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.495771][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.496340][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.496898][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.497470][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.498028][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.498600][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.499158][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.499734][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.500295][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.500866][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.501427][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.502000][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.502561][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.503134][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.503700][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.504274][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.504836][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.505409][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.505971][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.506544][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.507106][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.507682][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.508242][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.508817][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.509376][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.509953][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.510514][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.511086][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.511651][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.512225][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.512787][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.513359][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.513919][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.514491][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.515050][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.515623][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.516184][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.516757][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.517318][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.517889][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.518449][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.519020][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.519590][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.520162][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.520733][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.521305][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.521865][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.522436][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.523000][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.523572][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.524139][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.524710][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.525267][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.525836][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.526394][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.526962][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.527542][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.528115][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.528674][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.529247][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.529814][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.530382][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.530945][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.531517][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.532082][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.532657][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.533220][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.533795][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.534351][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.534921][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.535483][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.536056][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.536614][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.537184][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.537743][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.538313][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.538872][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.539455][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.540018][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.540593][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.541156][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.541726][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.542284][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.542854][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.543416][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.543987][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.544548][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.545119][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.545680][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.546251][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.546812][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.547384][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.547952][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.548521][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.549080][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.549649][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.550209][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.550778][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.551337][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.551913][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.552473][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.553045][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.553606][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.554177][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.554737][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.555309][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.555873][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.556453][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.557013][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.557586][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.558145][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.558715][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.559285][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.559862][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.560420][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.560991][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.561550][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.562120][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.562679][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.563250][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.563814][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.564382][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.564940][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.565510][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.566068][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.566638][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.567197][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.567770][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.568329][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.568898][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.569457][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.570027][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.570586][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.571155][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.571717][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.572286][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.572848][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.573420][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.573982][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.574553][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.575115][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.575689][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.576248][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.576817][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.577376][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.577944][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.578501][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.579069][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.579630][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.580198][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.580757][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.581327][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.581894][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.582466][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.583027][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.583601][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.584163][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.584735][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.585295][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.585867][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.586427][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.586999][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.587562][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.588131][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.588690][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.589259][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.589818][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.590393][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.590954][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.591529][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.592089][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.592660][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.593217][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.593785][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.594344][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.594911][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.595471][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.596038][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.596596][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.597164][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.597723][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.598293][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.598853][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.599426][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.599984][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.600553][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.601110][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.601679][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.602235][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.602804][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.603361][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.603934][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.604493][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.605062][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.605619][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.606190][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.606754][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.607326][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.607887][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.608458][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.609017][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.609588][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.610147][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.610717][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.611277][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.611849][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.612407][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.612974][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.613532][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.614100][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.614657][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.615225][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.615785][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.616355][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.616914][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.617485][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.618044][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.618614][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.619173][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.619745][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.620303][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.620873][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.621432][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.622002][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.622562][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.623133][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.623695][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.624270][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.624829][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.625400][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.625959][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.626532][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.627094][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.627667][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.628225][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.628795][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.629354][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.629923][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.630481][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.631052][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.631615][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.632184][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.632742][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.633311][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.633866][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.634434][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.634992][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.635564][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.636121][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.636690][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.637250][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.637820][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.638380][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.638950][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.639513][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.640079][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.640637][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.641205][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.641763][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.642331][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.642888][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.643459][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.644027][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.644598][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.645160][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.645730][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.646288][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.646858][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.647420][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.647991][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.648550][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.649120][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.649679][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.650251][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.650812][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.651382][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.651942][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.652512][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.653071][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.653642][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.654201][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.654772][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.655331][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.655907][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.656467][ T9870] ? tcp_bpf_close+0xa0/0xa0
[ 429.657037][ T9870] tcp_bpf_unhash+0x76/0x80
[ 429.657600][ T9870] tcp_set_state+0x7b/0x220
[ 429.658160][ T9870] ? put_object+0x20/0x30
[ 429.658699][ T9870] ? debug_smp_processor_id+0x2b/0x130
[ 429.659382][ T9870] tcp_disconnect+0x518/0x610
[ 429.659973][ T9870] tcp_close+0x41d/0x540
[ 429.660501][ T9870] ? tcp_check_oom+0x180/0x180
[ 429.661095][ T9870] tls_sk_proto_close+0x86/0x2a0
[ 429.661711][ T9870] ? locks_remove_posix+0x114/0x1c0
[ 429.662359][ T9870] inet_release+0x44/0x80
[ 429.662899][ T9870] inet6_release+0x36/0x50
[ 429.663453][ T9870] __sock_release+0x4b/0x100
[ 429.664024][ T9870] ? __sock_release+0x100/0x100
[ 429.664625][ T9870] sock_close+0x19/0x20
[ 429.665141][ T9870] __fput+0xe7/0x2f0
[ 429.665624][ T9870] ____fput+0x15/0x20
[ 429.666120][ T9870] task_work_run+0xa4/0xd0
[ 429.666671][ T9870] exit_to_usermode_loop+0x16f/0x180
[ 429.667329][ T9870] do_syscall_64+0x187/0x1b0
[ 429.667920][ T9870] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 429.668654][ T9870] RIP: 0033:0x412451
[ 429.669141][ T9870] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff
ff 0f 83 94 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03
00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4
08 48 3d 01
[ 429.671586][ T9870] RSP: 002b:00007ffde18b5470 EFLAGS: 00000293
ORIG_RAX: 0000000000000003
[ 429.672636][ T9870] RAX: 0000000000000000 RBX: 0000000000000005
RCX: 0000000000412451
[ 429.673628][ T9870] RDX: 0000000000000000 RSI: 0000000000000081
RDI: 0000000000000004
[ 429.674643][ T9870] RBP: 0000000000000000 R08: 0000000000721170
R09: 0000000000000000
[ 429.675641][ T9870] R10: 00007ffde18b5580 R11: 0000000000000293
R12: 0000000000000000
[ 429.676636][ T9870] R13: 000000000071bf00 R14: 00000000006e3140
R15: ffffffffffffffff
[ 429.677630][ T9870] Modules linked in:
[ 429.678119][ T9870] ---[ end trace a429c7ce256ca7bb ]---
[ 429.678798][ T9870] RIP: 0010:tcp_bpf_unhash+0xc/0x80
[ 429.679447][ T9870] Code: 28 4c 89 ee 48 89 df ff 10 e8 30 56 66 fe
5b 41 5c 41 5d 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 55 41
54 53 48 89 fb <e8> 0f 56 66 fe e8 6a bb 5f fe 4c 8b a3 80 02 00 00 4d
85 e4 74 2f
[ 429.681882][ T9870] RSP: 0018:ffffc90003690000 EFLAGS: 00010293
[ 429.682637][ T9870] RAX: ffff888066a72000 RBX: ffff88806695b640
RCX: ffffffff82c82f80
[ 429.683630][ T9870] RDX: 0000000000000000 RSI: 0000000000000007
RDI: ffff88806695b640
[ 429.684622][ T9870] RBP: ffffc90003690018 R08: 0000000000000000
R09: 0000000000000000
[ 429.685611][ T9870] R10: ffffc90003693e70 R11: 0000000000000000
R12: ffffffff82c82f10
[ 429.686601][ T9870] R13: 0000000000000007 R14: ffff88806695b710
R15: ffff88806695b710
[ 429.687592][ T9870] FS: 00005555569fc940(0000)
GS:ffff88807db80000(0000) knlGS:0000000000000000
[ 429.688701][ T9870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 429.689519][ T9870] CR2: ffffc9000368fff8 CR3: 00000000762bc002
CR4: 00000000007606e0
[ 429.690511][ T9870] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 429.691507][ T9870] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 429.692502][ T9870] PKRU: 55555554
[ 429.692941][ T9870] Kernel panic - not syncing: Fatal exception
[ 429.694377][ T9870] Kernel Offset: disabled
[ 429.694913][ T9870] Rebooting in 86400 seconds..




>
> Thanks
> Hillf
> ---
> net/tls/tls_main.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
> index 78cb4a5..2d0089d 100644
> --- a/net/tls/tls_main.c
> +++ b/net/tls/tls_main.c
> @@ -39,6 +39,7 @@
> #include <linux/netdevice.h>
> #include <linux/sched/signal.h>
> #include <linux/inetdevice.h>
> +#include <linux/atomic.h>
>
> #include <net/tls.h>
>
> @@ -539,12 +540,19 @@ static struct tls_context *create_ctx(struct sock *sk)
> {
> struct inet_connection_sock *icsk = inet_csk(sk);
> struct tls_context *ctx;
> -
> + struct tls_context *cur = xchg(&icsk->icsk_ulp_data,
> + icsk->icsk_ulp_data);
> + if (cur)
> + return cur;
> ctx = kzalloc(sizeof(*ctx), GFP_ATOMIC);
> if (!ctx)
> return NULL;
>
> - icsk->icsk_ulp_data = ctx;
> + cur = cmpxchg(&icsk->icsk_ulp_data, cur, ctx);
> + if (cur) {
> + kfree(ctx);
> + return cur;
> + }
> ctx->setsockopt = sk->sk_prot->setsockopt;
> ctx->getsockopt = sk->sk_prot->getsockopt;
> ctx->sk_proto_close = sk->sk_prot->close;