NET: Registered protocol family 30 Failed to register TIPC socket type IPVS: ftp: loaded support on port[0] = 21 NET: Registered protocol family 30 cache_from_obj: Wrong slab cache. TIPC but object is from kmalloc-2048 WARNING: CPU: 0 PID: 9 at mm/slab.h:380 cache_from_obj mm/slab.h:378 [inline] WARNING: CPU: 0 PID: 9 at mm/slab.h:380 cache_from_obj mm/slab.h:357 [inline] WARNING: CPU: 0 PID: 9 at mm/slab.h:380 kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3757 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.47 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x263/0x507 kernel/panic.c:185 IPVS: ftp: loaded support on port[0] = 21 __warn.cold+0x20/0x4a kernel/panic.c:540 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 list_add double add: new=ffffffff892e7630, prev=ffffffff890f3140, next=ffffffff892e7630. do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013 ------------[ cut here ]------------ RIP: 0010:cache_from_obj mm/slab.h:380 [inline] RIP: 0010:cache_from_obj mm/slab.h:357 [inline] RIP: 0010:kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3757 kernel BUG at lib/list_debug.c:29! Code: e8 95 ab 47 05 44 8b 6d c4 e9 74 a5 ff ff 48 8b 48 58 48 c7 c6 c0 44 54 87 48 c7 c7 78 66 38 88 49 8b 54 24 58 e8 44 3d b4 ff <0f> 0b e9 89 df ff ff 49 8b 4f 58 48 c7 c6 c0 44 54 87 48 c7 c7 78 RSP: 0018:ffff8880aa237ba8 EFLAGS: 00010286 RAX: 0000000000000046 RBX: ffff8880a66b1600 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81559f66 RDI: ffffed1015446f67 RBP: ffff8880aa237bc8 R08: 0000000000000046 R09: ffffed1015d04fe9 invalid opcode: 0000 [#1] PREEMPT SMP KASAN R10: ffffed1015d04fe8 R11: ffff8880ae827f47 R12: ffff888074055c00 CPU: 1 PID: 8233 Comm: syz-executor.2 Not tainted 4.19.47 #19 R13: 0000000000000000 R14: ffff888074055c00 R15: ffff8880a66b1910 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold+0x26/0x3c lib/list_debug.c:29 Code: 56 ff ff ff 4c 89 e1 48 c7 c7 a0 ae 81 87 e8 d0 f3 30 fe 0f 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 e0 af 81 87 e8 b9 f3 30 fe <0f> 0b 48 89 f1 48 c7 c7 60 af 81 87 4c 89 e6 e8 a5 f3 30 fe 0f 0b sk_prot_free net/core/sock.c:1504 [inline] __sk_destruct+0x4b4/0x6d0 net/core/sock.c:1588 RSP: 0018:ffff888071cefb88 EFLAGS: 00010282 sk_destruct+0x7b/0x90 net/core/sock.c:1596 RAX: 0000000000000058 RBX: ffffffff892e74a0 RCX: 0000000000000000 __sk_free+0xce/0x300 net/core/sock.c:1607 RDX: 0000000000000000 RSI: ffffffff81559f66 RDI: ffffed100e39df63 sk_free+0x42/0x50 net/core/sock.c:1618 RBP: ffff888071cefba0 R08: 0000000000000058 R09: ffffed1015d24fe9 sock_put include/net/sock.h:1702 [inline] tipc_sk_callback+0x48/0x60 net/tipc/socket.c:495 R10: ffffed1015d24fe8 R11: ffff8880ae927f47 R12: ffffffff892e7630 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2584 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881 R13: ffffffff892e7630 R14: ffffffff892e7630 R15: ffffffff892e75d0 FS: 000000000117b940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 __do_softirq+0x25c/0x921 kernel/softirq.c:292 CR2: 0000000000625208 CR3: 00000000730dd000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 run_ksoftirqd kernel/softirq.c:653 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645 Call Trace: smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164 __list_add include/linux/list.h:60 [inline] list_add include/linux/list.h:79 [inline] proto_register+0x459/0x8e0 net/core/sock.c:3299 tipc_socket_init+0x1c/0x70 net/tipc/socket.c:3157 tipc_init_net+0x2ed/0x570 net/tipc/core.c:69 kthread+0x354/0x420 kernel/kthread.c:246 ops_init+0xb3/0x410 net/core/net_namespace.c:129 setup_net+0x2d3/0x740 net/core/net_namespace.c:315 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 copy_net_ns+0x1df/0x340 net/core/net_namespace.c:438 create_new_namespaces+0x400/0x7b0 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206 ksys_unshare+0x440/0x980 kernel/fork.c:2525 __do_sys_unshare kernel/fork.c:2593 [inline] __se_sys_unshare kernel/fork.c:2591 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2591 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45bd47 Code: 00 00 00 b8 63 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 1d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 fd 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffc4352a418 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 000000000075c9a8 RCX: 000000000045bd47 RDX: 0000000000000000 RSI: 00007ffc4352a3c0 RDI: 0000000040000000 RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000005 R10: 0000000000000000 R11: 0000000000000202 R12: 000000000075c9a8 R13: 00007ffc4352a688 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: Kernel Offset: disabled Rebooting in 86400 seconds..