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

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