bond15 (unregistering): Released all slaves bond14 (unregistering): Released all slaves bond13 (unregistering): Released all slaves bond12 (unregistering): Released all slaves general protection fault, probably for non-canonical address 0xdffffc0000000082: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000410-0x0000000000000417] CPU: 1 PID: 47 Comm: kworker/u4:3 Not tainted 6.5.0-rc2-syzkaller-00558-g1671bcfd76fd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Workqueue: netns cleanup_net RIP: 0010:tcx_uninstall+0x19b/0x630 kernel/bpf/tcx.c:107 Code: 80 3c 02 00 49 8d 9d 10 04 00 00 0f 85 4f 04 00 00 48 8b 44 24 08 48 89 da 48 c1 ea 03 4c 8b 30 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 0f 85 3b 04 00 00 4d 85 f6 4d 8b a5 10 04 00 00 0f 84 RSP: 0018:ffffc90000b879b0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000410 RCX: fffff52000170ea6 RDX: 0000000000000082 RSI: ffffffff8a6c7700 RDI: ffffffff8ac810e0 RBP: ffff888053df9008 R08: 0000000000000001 R09: fffffbfff2309dd1 R10: ffffffff9184ee8f R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: dead4ead00000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff5ca742d8 CR3: 000000000c776000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dev_tcx_uninstall include/net/tcx.h:174 [inline] unregister_netdevice_many_notify+0x5e7/0x1a20 net/core/dev.c:10899 unregister_netdevice_many net/core/dev.c:10964 [inline] default_device_exit_batch+0x584/0x740 net/core/dev.c:11417 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x505/0xb20 net/core/net_namespace.c:614 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597 worker_thread+0x687/0x1110 kernel/workqueue.c:2748 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:tcx_uninstall+0x19b/0x630 kernel/bpf/tcx.c:107 Code: 80 3c 02 00 49 8d 9d 10 04 00 00 0f 85 4f 04 00 00 48 8b 44 24 08 48 89 da 48 c1 ea 03 4c 8b 30 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 0f 85 3b 04 00 00 4d 85 f6 4d 8b a5 10 04 00 00 0f 84 RSP: 0018:ffffc90000b879b0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000410 RCX: fffff52000170ea6 RDX: 0000000000000082 RSI: ffffffff8a6c7700 RDI: ffffffff8ac810e0 RBP: ffff888053df9008 R08: 0000000000000001 R09: fffffbfff2309dd1 R10: ffffffff9184ee8f R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: dead4ead00000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000002ab22000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 49 8d 9d 10 04 00 00 lea 0x410(%r13),%rbx b: 0f 85 4f 04 00 00 jne 0x460 11: 48 8b 44 24 08 mov 0x8(%rsp),%rax 16: 48 89 da mov %rbx,%rdx 19: 48 c1 ea 03 shr $0x3,%rdx 1d: 4c 8b 30 mov (%rax),%r14 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 3b 04 00 00 jne 0x46f 34: 4d 85 f6 test %r14,%r14 37: 4d 8b a5 10 04 00 00 mov 0x410(%r13),%r12 3e: 0f .byte 0xf 3f: 84 .byte 0x84