bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves Oops: general protection fault, probably for non-canonical address 0xf8071bfffd1ff5a2: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0xc038ffffe8ffad10-0xc038ffffe8ffad17] CPU: 1 PID: 40 Comm: kworker/u32:2 Not tainted 6.10.0-rc3-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:flush_gro_hash net/core/dev.c:6682 [inline] RIP: 0010:__netif_napi_del net/core/dev.c:6698 [inline] RIP: 0010:__netif_napi_del+0x318/0x570 net/core/dev.c:6689 Code: 1f 0f 87 b1 01 00 00 4c 39 fd 75 05 eb 3c 48 89 d3 e8 0c e2 d2 f8 be 02 00 00 00 4c 89 ff e8 4f f6 fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 0c 01 00 00 49 83 fc 07 48 8b 13 0f 87 0c 01 RSP: 0018:ffffc9000066fa10 EFLAGS: 00010a03 RAX: 18071ffffd1ff5a2 RBX: c038ffffe8ffad16 RCX: ffffffff88b6a5ed RDX: ffff888016f30000 RSI: ffffffff88bbadd1 RDI: 0000000000000005 RBP: ffffe8ffad16c038 R08: 0000000000000005 R09: 0000000000000000 R10: 000000000000ffff R11: 0000000000000003 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffe8ffad16c03a FS: 0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020a3e000 CR3: 000000002465a000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gro_cells_destroy net/core/gro_cells.c:117 [inline] gro_cells_destroy+0x10a/0x4d0 net/core/gro_cells.c:106 ip_tunnel_dev_free+0x19/0x60 net/ipv4/ip_tunnel.c:1100 netdev_run_todo+0x775/0x1250 net/core/dev.c:10693 cleanup_net+0x591/0xbf0 net/core/net_namespace.c:636 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:flush_gro_hash net/core/dev.c:6682 [inline] RIP: 0010:__netif_napi_del net/core/dev.c:6698 [inline] RIP: 0010:__netif_napi_del+0x318/0x570 net/core/dev.c:6689 Code: 1f 0f 87 b1 01 00 00 4c 39 fd 75 05 eb 3c 48 89 d3 e8 0c e2 d2 f8 be 02 00 00 00 4c 89 ff e8 4f f6 fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 0c 01 00 00 49 83 fc 07 48 8b 13 0f 87 0c 01 RSP: 0018:ffffc9000066fa10 EFLAGS: 00010a03 RAX: 18071ffffd1ff5a2 RBX: c038ffffe8ffad16 RCX: ffffffff88b6a5ed RDX: ffff888016f30000 RSI: ffffffff88bbadd1 RDI: 0000000000000005 RBP: ffffe8ffad16c038 R08: 0000000000000005 R09: 0000000000000000 R10: 000000000000ffff R11: 0000000000000003 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffe8ffad16c03a FS: 0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000033228000 CR3: 00000000571ae000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 0f 87 b1 01 00 00 ja 0x1b7 6: 4c 39 fd cmp %r15,%rbp 9: 75 05 jne 0x10 b: eb 3c jmp 0x49 d: 48 89 d3 mov %rdx,%rbx 10: e8 0c e2 d2 f8 call 0xf8d2e221 15: be 02 00 00 00 mov $0x2,%esi 1a: 4c 89 ff mov %r15,%rdi 1d: e8 4f f6 fa ff call 0xfffaf671 22: 48 89 d8 mov %rbx,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2e: 0f 85 0c 01 00 00 jne 0x140 34: 49 83 fc 07 cmp $0x7,%r12 38: 48 8b 13 mov (%rbx),%rdx 3b: 0f .byte 0xf 3c: 87 0c 01 xchg %ecx,(%rcx,%rax,1)