cache_from_obj: Wrong slab cache. TIPC but object is from kmalloc-2k WARNING: CPU: 1 PID: 16 at mm/slab.h:376 cache_from_obj mm/slab.h:374 [inline] WARNING: CPU: 1 PID: 16 at mm/slab.h:376 cache_from_obj mm/slab.h:353 [inline] WARNING: CPU: 1 PID: 16 at mm/slab.h:376 kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3720 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.1.0+ #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+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:566 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:180 [inline] fixup_bug arch/x86/kernel/traps.c:175 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:273 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:292 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972 RIP: 0010:cache_from_obj mm/slab.h:376 [inline] RIP: 0010:cache_from_obj mm/slab.h:353 [inline] RIP: 0010:kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3720 Code: e8 a5 ae 6e 05 44 8b 6d c4 e9 04 a6 ff ff 48 8b 48 58 48 c7 c6 80 42 74 87 48 c7 c7 f0 a9 5c 88 49 8b 54 24 58 e8 e4 9d b1 ff <0f> 0b e9 89 df ff ff 49 8b 4f 58 48 c7 c6 80 42 74 87 48 c7 c7 f0 RSP: 0018:ffff8880a990fbc0 EFLAGS: 00010286 RAX: 0000000000000044 RBX: ffff888069de74c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815afbe6 RDI: ffffed1015321f6a RBP: ffff8880a990fbe0 R08: 0000000000000044 R09: ffffed1015d26011 R10: ffffed1015d26010 R11: ffff8880ae930087 R12: ffff88809afe93c0 R13: 0000000000000000 R14: ffff88809afe93c0 R15: ffff888069de77e8 sk_prot_free net/core/sock.c:1643 [inline] __sk_destruct+0x4be/0x6e0 net/core/sock.c:1731 sk_destruct+0x7b/0x90 net/core/sock.c:1739 __sk_free+0xce/0x300 net/core/sock.c:1750 sk_free+0x42/0x50 net/core/sock.c:1761 sock_put include/net/sock.h:1728 [inline] tipc_sk_callback+0x48/0x60 net/tipc/socket.c:499 __rcu_reclaim kernel/rcu/rcu.h:227 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0x973/0x1430 kernel/rcu/tree.c:2291 __do_softirq+0x266/0x95a kernel/softirq.c:293 run_ksoftirqd kernel/softirq.c:604 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:596 smpboot_thread_fn+0x6ab/0xa40 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..