Your message dated Wed, 16 Sep 2026 21:15:05 +0200
with message-id 
<3adgtlb64ftbuko7qwbsfgspae7yxk3e2pjk3vnzubkw5fvtof@tu6tf3gusbzp>
and subject line Re: Bug#1146519: nftables autopkgtest from sid appears to kill 
arm64 cloud kernels from trixie
has caused the Debian Bug report #1146519,
regarding nftables autopkgtest from sid appears to kill arm64 cloud kernels 
from trixie
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1146519: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1146519
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: linux-image-6.12.107+deb13-cloud-arm64
Version: 6.12.107-1
Severity: important
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: arm64

When running the nftables autopkgtest from sid on a trixie machine in an
incus-lxc container, I get this:

------------[ cut here ]------------
memcpy: detected field-spanning write (size 28) of single field "_Generic(info, 
const struct ip_tunnel_info * : ((const void *)((info) + 1)), struct 
ip_tunnel_info * : ((void *)((info) + 1)) )" at include/net/ip_tunnels.h:700 
(size 0)
WARNING: CPU: 2 PID: 5917 at include/net/ip_tunnels.h:700 
nft_tunnel_obj_init+0x5ac/0x6a8 [nft_tunnel]
Modules linked in: nft_tunnel nft_synproxy nf_synproxy_core nft_quota 
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_osf nfnetlink_osf 
nft_nat nft_meta_bridge nfnetlink_hook nft_xfrm nf_flow_table_inet 
nf_flow_table dummy nft_socket nf_socket_ipv4 nf_socket_ipv6 nft_ct veth 
nft_masq nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bridge 
stp llc nf_tables libcrc32c binfmt_misc nls_ascii nls_cp437 vfat fat aes_ce_blk 
aes_ce_cipher crct10dif_ce polyval_ce polyval_generic ghash_ce gf128mul sha2_ce 
virtio_balloon sha256_arm64 sha1_ce arm_smccc_trng evdev nvme_fabrics loop 
dm_mod efi_pstore configfs nfnetlink vsock_loopback 
vmw_vsock_virtio_transport_common vsock efivarfs qemu_fw_cfg virtio_rng 
ip_tables x_tables autofs4 virtio_net net_failover virtio_blk failover 
virtio_mmio
CPU: 2 UID: 1000000 PID: 5917 Comm: nft Not tainted 6.12.107+deb13-cloud-arm64 
#1  Debian 6.12.107-1
Hardware name: QEMU KVM Virtual Machine, BIOS 2025.02-8+deb13u1 11/08/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : nft_tunnel_obj_init+0x5ac/0x6a8 [nft_tunnel]
lr : nft_tunnel_obj_init+0x5ac/0x6a8 [nft_tunnel]
sp : ffff800080ceb3d0
x29: ffff800080ceb470 x28: 000000008d7250d8 x27: ffff800080ceb628
x26: 0000000000000005 x25: 0000000000000006 x24: ffff0002775b5e88
x23: ffff0002775b4490 x22: ffff0002775b4400 x21: ffff0002775b5e00
x20: ffff800080ceb408 x19: ffff0002775b44f0 x18: ffffffffffffffff
x17: 0000000000000000 x16: ffffa39bc4947008 x15: 2b20296f666e6928
x14: 28292a2064696f76 x13: 74656e2f6564756c x12: ffffa39bc63f1d18
x11: ffffa39bc6399d70 x10: ffffa39bc63f1d70 x9 : ffffa39bc49e1608
x8 : 0000000000000001 x7 : 0000000000017fe8 x6 : c0000000ffffefff
x5 : ffff0003fd8183c8 x4 : 0000000000000000 x3 : ffff5c6837569000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c583b780
Call trace:
 nft_tunnel_obj_init+0x5ac/0x6a8 [nft_tunnel]
 nft_obj_init+0xcc/0x170 [nf_tables]
 nf_tables_newobj+0x2c4/0x4a0 [nf_tables]
 nfnetlink_rcv_batch+0x698/0x960 [nfnetlink]
 nfnetlink_rcv+0x16c/0x1b0 [nfnetlink]
 netlink_unicast+0x304/0x380
 netlink_sendmsg+0x1ac/0x410
 __sock_sendmsg+0x64/0xc0
 ____sys_sendmsg+0x270/0x308
 ___sys_sendmsg+0xb8/0x118
 __sys_sendmsg+0xa4/0x110
 __arm64_sys_sendmsg+0x2c/0x40
 invoke_syscall+0x60/0xe0
 el0_svc_common.constprop.0+0xc8/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x38/0x148
 el0t_64_sync_handler+0xc8/0xe0
 el0t_64_sync+0x190/0x198
---[ end trace 0000000000000000 ]---

Shortly thereafter, the machine becomes unresponsive.

Helmut

--- End Message ---
--- Begin Message ---
Version: 6.15~rc7-1~exp1

On Thu, Sep 03, 2026 at 06:56:20AM +0200, Helmut Grohne wrote:
> Hi Bastian,
> 
> On Wed, Sep 02, 2026 at 11:25:12PM +0200, Bastian Blank wrote:
> > Control: tags -1 moreinfo
> > 
> > On Wed, Sep 02, 2026 at 09:06:03PM +0200, Helmut Grohne wrote:
> > > ------------[ cut here ]------------
> > > memcpy: detected field-spanning write (size 28) of single field 
> > > "_Generic(info, const struct ip_tunnel_info * : ((const void *)((info) + 
> > > 1)), struct ip_tunnel_info * : ((void *)((info) + 1)) )" at 
> > > include/net/ip_tunnels.h:700 (size 0)
> > 
> > This should be fixed with bb5e62f2d547c4de6d1b144cbce2373a76c33f18
> > (in 6.15).  Could you please verify that?
> 
> I cannot easily verify that and I didn't manage to reproduce it outside
> our production environment yet.

Okay.  Closing then with the mentioned version.

Bastian

-- 
Insults are effective only where emotion is present.
                -- Spock, "Who Mourns for Adonais?"  stardate 3468.1

--- End Message ---

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