IPVS: ftp: loaded support on port[0] = 21 NET: Registered protocol family 30 Failed to register TIPC socket type cache_from_obj: Wrong slab cache. TIPC but object is from kmalloc-2048 WARNING: CPU: 1 PID: 8352 at mm/slab.h:380 cache_from_obj mm/slab.h:378 [inline] WARNING: CPU: 1 PID: 8352 at mm/slab.h:380 cache_from_obj mm/slab.h:357 [inline] WARNING: CPU: 1 PID: 8352 at mm/slab.h:380 kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3757 Kernel panic - not syncing: panic_on_warn set ... kobject: 'loop0' (000000002694a060): fill_kobj_path: path = '/devices/virtual/block/loop0' CPU: 1 PID: 8352 Comm: syz-executor.5 Not tainted 4.19.46 #18 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 __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 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013 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 Code: e8 25 8d 47 05 44 8b 6d c4 e9 74 a5 ff ff 48 8b 48 58 48 c7 c6 40 45 54 87 48 c7 c7 18 64 38 88 49 8b 54 24 58 e8 34 43 b4 ff <0f> 0b e9 89 df ff ff 49 8b 4f 58 48 c7 c6 40 45 54 87 48 c7 c7 18 RSP: 0018:ffff8880ae907cf8 EFLAGS: 00010286 RAX: 0000000000000046 RBX: ffff88808d2b8c80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81559e76 RDI: ffffed1015d20f91 RBP: ffff8880ae907d18 R08: 0000000000000046 R09: ffffed1015d24fe9 R10: ffffed1015d24fe8 R11: ffff8880ae927f47 R12: ffff88809eff7ac0 R13: 0000000000000000 R14: ffff88809eff7ac0 R15: ffff88808d2b8f90 sk_prot_free net/core/sock.c:1504 [inline] __sk_destruct+0x4b4/0x6d0 net/core/sock.c:1588 sk_destruct+0x7b/0x90 net/core/sock.c:1596 __sk_free+0xce/0x300 net/core/sock.c:1607 sk_free+0x42/0x50 net/core/sock.c:1618 sock_put include/net/sock.h:1702 [inline] tipc_sk_callback+0x48/0x60 net/tipc/socket.c:495 __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 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:869 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:kfree+0x183/0x220 mm/slab.c:3823 Code: 60 7e 0f 85 b6 fe ff ff e8 8b 30 5f ff e9 ac fe ff ff e8 e0 fd ce ff 48 83 3d 70 00 d1 06 00 0f 84 9e 00 00 00 48 89 df 57 9d <0f> 1f 44 00 00 5b 41 5c 41 5d 41 5e 5d c3 4c 89 f2 4c 89 e6 4c 89 RSP: 0018:ffff88806ee87bf8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 0000000000000282 RCX: 1ffff11011b4e1ac RDX: 0000000000000000 RSI: ffff88808da70d40 RDI: 0000000000000282 RBP: ffff88806ee87c18 R08: ffff88808da704c0 R09: ffff88808da70d60 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808f7c9440 R13: ffff88812c3f01c0 R14: ffffffff85633ae8 R15: 0000000000000025 ops_free net/core/net_namespace.c:143 [inline] ops_free_list.part.0+0x268/0x3c0 net/core/net_namespace.c:165 ops_free_list net/core/net_namespace.c:163 [inline] setup_net+0x4c2/0x740 net/core/net_namespace.c:336 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:00007ffe5d3df398 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 000000000075c9a8 RCX: 000000000045bd47 RDX: 0000000000000000 RSI: 00007ffe5d3df340 RDI: 0000000040000000 RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000005 R10: 0000000000000000 R11: 0000000000000206 R12: 000000000075c9a8 R13: 00007ffe5d3df608 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..