------------[ cut here ]------------ WARNING: CPU: 0 PID: 3715 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0xc4/0x140 net/ipv6/xfrm6_tunnel.c:341 Modules linked in: CPU: 0 UID: 0 PID: 3715 Comm: kworker/u8:6 Not tainted syzkaller #0 9f86d9c18f1652eb5f7cacfb207b3899f57a91b2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm6_tunnel_net_exit+0xc4/0x140 net/ipv6/xfrm6_tunnel.c:341 Code: e8 21 74 d9 fc 4b 83 3c 3e 00 75 19 e8 45 47 81 fc 49 81 ff f8 07 00 00 74 1b e8 37 47 81 fc 49 83 c7 08 eb c9 e8 2c 47 81 fc <0f> 0b 49 81 ff f8 07 00 00 75 e5 49 8d 9e 00 08 00 00 45 31 ff 4a RSP: 0018:ffffc9000c627b90 EFLAGS: 00010293 RAX: ffffffff85066384 RBX: ffff8881307258c0 RCX: ffff88811e5f1300 RDX: 0000000000000000 RSI: 0000000000400000 RDI: ffff888102bd8000 RBP: ffffc9000c627bb0 R08: ffffffff87d380c7 R09: 1ffffffff0fa7018 R10: dffffc0000000000 R11: fffffbfff0fa7019 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888102bd8000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc6457faff8 CR3: 000000011b20e000 CR4: 00000000003526b0 Call Trace: ops_exit_list net/core/net_namespace.c:173 [inline] cleanup_net+0x6bd/0xc90 net/core/net_namespace.c:642 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x7d1/0x1020 kernel/workqueue.c:3319 worker_thread+0xc70/0x10b0 kernel/workqueue.c:3400 kthread+0x2c9/0x370 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3715 at net/ipv6/xfrm6_tunnel.c:344 xfrm6_tunnel_net_exit+0x119/0x140 net/ipv6/xfrm6_tunnel.c:344 Modules linked in: CPU: 0 UID: 0 PID: 3715 Comm: kworker/u8:6 Tainted: G W syzkaller #0 9f86d9c18f1652eb5f7cacfb207b3899f57a91b2 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm6_tunnel_net_exit+0x119/0x140 net/ipv6/xfrm6_tunnel.c:344 Code: fc 4b 83 bc 3e 00 08 00 00 00 75 19 e8 f0 46 81 fc 49 81 ff f8 07 00 00 74 1b e8 e2 46 81 fc 49 83 c7 08 eb c5 e8 d7 46 81 fc <0f> 0b 49 81 ff f8 07 00 00 75 e5 e8 c7 46 81 fc 5b 41 5c 41 5e 41 RSP: 0018:ffffc9000c627b90 EFLAGS: 00010293 RAX: ffffffff850663d9 RBX: ffff888102bd8800 RCX: ffff88811e5f1300 RDX: 0000000000000000 RSI: 0000000000400000 RDI: ffff888102bd8810 RBP: ffffc9000c627bb0 R08: ffffffff87d380c7 R09: 1ffffffff0fa7018 R10: dffffc0000000000 R11: fffffbfff0fa7019 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888102bd8000 R15: 0000000000000010 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc6457faff8 CR3: 00000000074a8000 CR4: 00000000003526b0 Call Trace: ops_exit_list net/core/net_namespace.c:173 [inline] cleanup_net+0x6bd/0xc90 net/core/net_namespace.c:642 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x7d1/0x1020 kernel/workqueue.c:3319 worker_thread+0xc70/0x10b0 kernel/workqueue.c:3400 kthread+0x2c9/0x370 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3715 at net/xfrm/xfrm_state.c:3216 xfrm_state_fini+0x2be/0x310 net/xfrm/xfrm_state.c:3216 Modules linked in: CPU: 0 UID: 0 PID: 3715 Comm: kworker/u8:6 Tainted: G W syzkaller #0 9f86d9c18f1652eb5f7cacfb207b3899f57a91b2 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm_state_fini+0x2be/0x310 net/xfrm/xfrm_state.c:3216 Code: 3c 20 00 74 08 48 89 df e8 cf 3d f4 fc 48 8b 3b e8 37 66 df fc 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d8 c8 b7 00 cc e8 e2 10 9c fc <0f> 0b e9 b0 fd ff ff e8 d6 10 9c fc 0f 0b e9 18 fe ff ff e8 ca 10 RSP: 0018:ffffc9000c627b70 EFLAGS: 00010293 RAX: ffffffff84eb99ce RBX: ffff8881307258c0 RCX: ffff88811e5f1300 RDX: 0000000000000000 RSI: 0000000000400000 RDI: ffff88811e5f1300 RBP: ffffc9000c627b98 R08: ffffffff87d380c7 R09: 1ffffffff0fa7018 R10: dffffc0000000000 R11: fffffbfff0fa7019 R12: 1ffffffff0fa6d68 R13: dffffc0000000000 R14: ffff8881307264c0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc6457faff8 CR3: 000000010cb04000 CR4: 00000000003526b0 Call Trace: xfrm_net_exit+0x31/0x80 net/xfrm/xfrm_policy.c:4342 ops_exit_list net/core/net_namespace.c:173 [inline] cleanup_net+0x6bd/0xc90 net/core/net_namespace.c:642 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x7d1/0x1020 kernel/workqueue.c:3319 worker_thread+0xc70/0x10b0 kernel/workqueue.c:3400 kthread+0x2c9/0x370 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---[ end trace 0000000000000000 ]--- bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode +$<¶: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode +$<¶: port 1(bridge_slave_0) entered disabled state bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state tipc: Left network mode tipc: Left network mode veth1_macvtap: left promiscuous mode veth0_vlan: left promiscuous mode veth1_macvtap: left promiscuous mode veth0_vlan: left promiscuous mode bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state veth1_macvtap: left promiscuous mode veth0_vlan: left promiscuous mode