------------[ cut here ]------------ WARNING: CPU: 1 PID: 455 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0xc4/0x140 net/ipv6/xfrm6_tunnel.c:341 Modules linked in: CPU: 1 UID: 0 PID: 455 Comm: kworker/u8:13 Not tainted syzkaller #0 d75e9a393de9c6a33055d5e25749154d2cb9f431 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm6_tunnel_net_exit+0xc4/0x140 net/ipv6/xfrm6_tunnel.c:341 Code: e8 f1 62 d6 fc 4b 83 3c 3e 00 75 19 e8 65 9f 7d fc 49 81 ff f8 07 00 00 74 1b e8 57 9f 7d fc 49 83 c7 08 eb c9 e8 4c 9f 7d 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:ffffc9000d5f7b90 EFLAGS: 00010293 RAX: ffffffff8509d274 RBX: ffff88813176ea80 RCX: ffff8881166e5f00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88810dae8000 RBP: ffffc9000d5f7bb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001abef04 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88810dae8000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc0805ea0c CR3: 0000000125f9c000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 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:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 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: 455 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: 455 Comm: kworker/u8:13 Tainted: G W syzkaller #0 d75e9a393de9c6a33055d5e25749154d2cb9f431 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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 10 9f 7d fc 49 81 ff f8 07 00 00 74 1b e8 02 9f 7d fc 49 83 c7 08 eb c5 e8 f7 9e 7d fc <0f> 0b 49 81 ff f8 07 00 00 75 e5 e8 e7 9e 7d fc 5b 41 5c 41 5e 41 RSP: 0018:ffffc9000d5f7b90 EFLAGS: 00010293 RAX: ffffffff8509d2c9 RBX: ffff88810dae8800 RCX: ffff8881166e5f00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88810dae8808 RBP: ffffc9000d5f7bb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001abef04 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88810dae8000 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9633bef2f8 CR3: 000000012160e000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 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:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 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: 455 at net/xfrm/xfrm_state.c:3217 xfrm_state_fini+0x2be/0x310 net/xfrm/xfrm_state.c:3217 Modules linked in: CPU: 0 UID: 0 PID: 455 Comm: kworker/u8:13 Tainted: G W syzkaller #0 d75e9a393de9c6a33055d5e25749154d2cb9f431 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm_state_fini+0x2be/0x310 net/xfrm/xfrm_state.c:3217 Code: 3c 20 00 74 08 48 89 df e8 2f 21 f1 fc 48 8b 3b e8 47 14 dc fc 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 92 5d 98 fc <0f> 0b e9 b0 fd ff ff e8 86 5d 98 fc 0f 0b e9 18 fe ff ff e8 7a 5d RSP: 0018:ffffc9000d5f7b70 EFLAGS: 00010293 RAX: ffffffff84ef142e RBX: ffff88813176ea80 RCX: ffff8881166e5f00 RDX: 0000000000000000 RSI: 0000000000c00000 RDI: ffff8881166e5f00 RBP: ffffc9000d5f7b98 R08: ffffffff87d42767 R09: 1ffffffff0fa84ec R10: dffffc0000000000 R11: fffffbfff0fa84ed R12: 1ffffffff0fa8240 R13: dffffc0000000000 R14: ffff88813176f680 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9633bef2f8 CR3: 00000001202c0000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: xfrm_net_exit+0x31/0x80 net/xfrm/xfrm_policy.c:4353 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:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 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: 455 at net/xfrm/xfrm_state.c:3224 xfrm_state_fini+0x2e2/0x310 net/xfrm/xfrm_state.c:3224 Modules linked in: CPU: 0 UID: 0 PID: 455 Comm: kworker/u8:13 Tainted: G W syzkaller #0 d75e9a393de9c6a33055d5e25749154d2cb9f431 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm_state_fini+0x2e2/0x310 net/xfrm/xfrm_state.c:3224 Code: cc e8 92 5d 98 fc 0f 0b e9 b0 fd ff ff e8 86 5d 98 fc 0f 0b e9 18 fe ff ff e8 7a 5d 98 fc 0f 0b e9 8c fe ff ff e8 6e 5d 98 fc <0f> 0b e9 f9 fe ff ff e8 62 5d 98 fc 0f 0b e9 66 ff ff ff 89 f9 80 RSP: 0018:ffffc9000d5f7b70 EFLAGS: 00010293 RAX: ffffffff84ef1452 RBX: ffff88813176ea80 RCX: ffff8881166e5f00 RDX: 0000000000000000 RSI: ffff88810fa60480 RDI: ffff8881000418c0 RBP: ffffc9000d5f7b98 R08: 0000000070626592 R09: 0000000093e7f97b R10: 000000000000000d R11: ffffffff81759ed0 R12: ffff88810fa60780 R13: 1ffff110262eded3 R14: 0000000000000040 R15: ffff88813176f698 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9633bef2f8 CR3: 00000001202c0000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: xfrm_net_exit+0x31/0x80 net/xfrm/xfrm_policy.c:4353 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:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 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: 455 at net/xfrm/xfrm_state.c:3226 xfrm_state_fini+0x2ee/0x310 net/xfrm/xfrm_state.c:3226 Modules linked in: CPU: 0 UID: 0 PID: 455 Comm: kworker/u8:13 Tainted: G W syzkaller #0 d75e9a393de9c6a33055d5e25749154d2cb9f431 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: netns cleanup_net RIP: 0010:xfrm_state_fini+0x2ee/0x310 net/xfrm/xfrm_state.c:3226 Code: ff e8 86 5d 98 fc 0f 0b e9 18 fe ff ff e8 7a 5d 98 fc 0f 0b e9 8c fe ff ff e8 6e 5d 98 fc 0f 0b e9 f9 fe ff ff e8 62 5d 98 fc <0f> 0b e9 66 ff ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 8e fd ff RSP: 0018:ffffc9000d5f7b70 EFLAGS: 00010293 RAX: ffffffff84ef145e RBX: ffff88813176ea80 RCX: ffff8881166e5f00 RDX: 0000000000000000 RSI: ffff88810fa60780 RDI: ffff8881000418c0 RBP: ffffc9000d5f7b98 R08: 000000009f7e727c R09: 0000000059a08f7c R10: 000000000000000d R11: ffffffff81759ed0 R12: ffff88810fa60980 R13: 1ffff110262eded2 R14: 0000000000000040 R15: ffff88813176f690 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9633bef2f8 CR3: 000000010bb90000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: xfrm_net_exit+0x31/0x80 net/xfrm/xfrm_policy.c:4353 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:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 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 ]---