kmalloc-96              1474KB       1716KB
kmem_cache_node          219KB        220KB
kmem_cache               195KB        195KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 0 UID: 0 PID: 1146 Comm: kworker/u32:8 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 vpanic+0x640/0x6f0 kernel/panic.c:489
 panic+0xca/0xd0 kernel/panic.c:626
 out_of_memory+0x16e4/0x1700 mm/oom_kill.c:1181
 __alloc_pages_may_oom mm/page_alloc.c:4055 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4865 [inline]
 __alloc_frozen_pages_noprof+0x1dc6/0x2440 mm/page_alloc.c:5196
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab mm/slub.c:3256 [inline]
 new_slab+0x2e1/0x430 mm/slub.c:3302
 ___slab_alloc+0xe18/0x1c90 mm/slub.c:4651
 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4774
 __slab_alloc_node mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:5246 [inline]
 kmem_cache_alloc_node_noprof+0x43c/0x7f0 mm/slub.c:5310
 kmalloc_reserve+0x18b/0x2c0 net/core/skbuff.c:586
 __alloc_skb+0x186/0x410 net/core/skbuff.c:690
 alloc_skb include/linux/skbuff.h:1383 [inline]
 nlmsg_new include/net/netlink.h:1055 [inline]
 inet6_ifmcaddr_notify+0xd6/0x1d0 net/ipv6/mcast.c:909
 __ipv6_dev_mc_inc+0x70a/0xbc0 net/ipv6/mcast.c:973
 ipv6_add_dev+0xbb7/0x1590 net/ipv6/addrconf.c:472
 addrconf_notify+0x53e/0x19b0 net/ipv6/addrconf.c:3650
 notifier_call_chain+0xbc/0x3e0 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2230
 call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]
 call_netdevice_notifiers net/core/dev.c:2282 [inline]
 register_netdevice+0x1792/0x21d0 net/core/dev.c:11429
 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:1061 [inline]
 nsim_create+0xdd5/0x13f0 drivers/net/netdevsim/netdev.c:1143
 __nsim_dev_port_add+0x451/0x7a0 drivers/net/netdevsim/dev.c:1493
 nsim_dev_port_add_all drivers/net/netdevsim/dev.c:1549 [inline]
 nsim_dev_reload_create drivers/net/netdevsim/dev.c:1601 [inline]
 nsim_dev_reload_up+0x5b8/0x860 drivers/net/netdevsim/dev.c:1058
 devlink_reload+0x325/0x7c0 net/devlink/dev.c:474
 devlink_pernet_pre_exit+0x1a0/0x2b0 net/devlink/core.c:509
 ops_pre_exit_list net/core/net_namespace.c:161 [inline]
 ops_undo_list+0x187/0xab0 net/core/net_namespace.c:234
 cleanup_net+0x41b/0x830 net/core/net_namespace.c:696
 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..