------------[ cut here ]------------ WARNING: CPU: 0 PID: 10460 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: 10460 Comm: kworker/u8:0 Not tainted syzkaller #0 f39b5fd6571327469eae9f28eb29c870797b656b 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 41 4c d9 fc 4b 83 3c 3e 00 75 19 e8 e5 1d 81 fc 49 81 ff f8 07 00 00 74 1b e8 d7 1d 81 fc 49 83 c7 08 eb c9 e8 cc 1d 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:ffffc9000103fb90 EFLAGS: 00010293 RAX: ffffffff85068ce4 RBX: ffff8881320e91c0 RCX: ffff88812ac5df00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888102fc4118 RBP: ffffc9000103fbb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000207f04 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888102fc4000 R15: 0000000000000118 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056287298b620 CR3: 000000011a3fc000 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: 1 PID: 10460 at net/ipv6/xfrm6_tunnel.c:344 xfrm6_tunnel_net_exit+0x119/0x140 net/ipv6/xfrm6_tunnel.c:344 Modules linked in: CPU: 1 UID: 0 PID: 10460 Comm: kworker/u8:0 Tainted: G W syzkaller #0 f39b5fd6571327469eae9f28eb29c870797b656b 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 90 1d 81 fc 49 81 ff f8 07 00 00 74 1b e8 82 1d 81 fc 49 83 c7 08 eb c5 e8 77 1d 81 fc <0f> 0b 49 81 ff f8 07 00 00 75 e5 e8 67 1d 81 fc 5b 41 5c 41 5e 41 RSP: 0018:ffffc9000103fb90 EFLAGS: 00010293 RAX: ffffffff85068d39 RBX: ffff888102fc4800 RCX: ffff88812ac5df00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888102fc4808 RBP: ffffc9000103fbb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000207f04 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888102fc4000 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e359e92f8 CR3: 000000010bb48000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000080083 DR3: ffffffffefffff16 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: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: 1 PID: 10460 at net/xfrm/xfrm_state.c:3216 xfrm_state_fini+0x2be/0x310 net/xfrm/xfrm_state.c:3216 Modules linked in: CPU: 1 UID: 0 PID: 10460 Comm: kworker/u8:0 Tainted: G W syzkaller #0 f39b5fd6571327469eae9f28eb29c870797b656b 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 3f 18 f4 fc 48 8b 3b e8 a7 40 df fc 5b 41 5c 41 5d 41 5e 41 5f 5d e9 c8 d1 b7 00 cc e8 d2 e9 9b fc <0f> 0b e9 b0 fd ff ff e8 c6 e9 9b fc 0f 0b e9 18 fe ff ff e8 ba e9 RSP: 0018:ffffc9000103fb70 EFLAGS: 00010293 RAX: ffffffff84ebc0de RBX: ffff8881320e91c0 RCX: ffff88812ac5df00 RDX: 0000000000000000 RSI: 0000000000400000 RDI: ffff88812ac5df00 RBP: ffffc9000103fb98 R08: ffffffff87d38bc7 R09: 1ffffffff0fa7178 R10: dffffc0000000000 R11: fffffbfff0fa7179 R12: 1ffffffff0fa6ec8 R13: dffffc0000000000 R14: ffff8881320e9dc0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e359e92f8 CR3: 0000000123b76000 CR4: 00000000003526b0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000080083 DR3: ffffffffefffff16 DR6: 00000000ffff0ff0 DR7: 0000000000000400 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 ]---