task_struct 4069KB 4777KB cred 132KB 368KB anon_vma_chain 102KB 275KB anon_vma 112KB 407KB pid 160KB 375KB Acpi-Operand 199KB 328KB Acpi-ParseExt 21KB 35KB Acpi-Parse 12KB 19KB Acpi-State 16KB 35KB Acpi-Namespace 31KB 48KB numa_policy 7KB 8KB perf_event 15KB 31KB trace_event_file 577KB 580KB ftrace_event_field 1118KB 1122KB pool_workqueue 2051KB 2192KB task_group 32KB 48KB maple_node 440KB 1424KB mm_struct 162KB 414KB vmap_area 269KB 859KB debug_objects_cache 1933KB 4587KB page->ptl 26KB 102KB kmalloc-cg-8k 2080KB 2528KB kmalloc-cg-4k 11096KB 13216KB kmalloc-cg-2k 7028KB 8512KB kmalloc-cg-1k 2006KB 2848KB kmalloc-cg-512 747KB 1152KB kmalloc-cg-256 298KB 368KB kmalloc-cg-128 198KB 232KB kmalloc-cg-64 41KB 60KB kmalloc-cg-32 41KB 184KB kmalloc-cg-16 3KB 12KB kmalloc-cg-8 17KB 36KB kmalloc-cg-192 54KB 68KB kmalloc-cg-96 41KB 64KB kmalloc-8k 4976KB 5568KB kmalloc-4k 27184KB 27296KB kmalloc-2k 12480KB 15296KB kmalloc-1k 8776KB 8832KB kmalloc-512 9911KB 11060KB kmalloc-256 12537KB 12588KB kmalloc-128 1468KB 1728KB kmalloc-64 3024KB 3368KB kmalloc-32 1312KB 1804KB kmalloc-16 377KB 432KB kmalloc-8 407KB 516KB kmalloc-192 1240KB 1452KB kmalloc-96 1547KB 1732KB kmem_cache_node 215KB 220KB kmem_cache 179KB 218KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 3 UID: 0 PID: 5797 Comm: kworker/u32:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 vpanic+0x552/0x970 kernel/panic.c:651 panic+0xd1/0xe0 kernel/panic.c:788 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1166 __alloc_pages_may_oom mm/page_alloc.c:4116 [inline] __alloc_pages_slowpath mm/page_alloc.c:4967 [inline] __alloc_frozen_pages_noprof+0x24c2/0x2dc0 mm/page_alloc.c:5317 alloc_slab_page mm/slub.c:3266 [inline] allocate_slab mm/slub.c:3388 [inline] new_slab+0x1e2/0x640 mm/slub.c:3426 refill_objects+0xe3/0x410 mm/slub.c:7310 refill_sheaf mm/slub.c:2804 [inline] __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675 alloc_from_pcs mm/slub.c:4773 [inline] slab_alloc_node mm/slub.c:4905 [inline] kmem_cache_alloc_node_noprof+0x52c/0x6b0 mm/slub.c:4989 kmalloc_reserve+0x148/0x350 net/core/skbuff.c:615 __alloc_skb+0x185/0x710 net/core/skbuff.c:715 alloc_skb include/linux/skbuff.h:1384 [inline] nlmsg_new include/net/netlink.h:1055 [inline] inet6_ifmcaddr_notify+0xd6/0x1d0 net/ipv6/mcast.c:909 __ipv6_dev_mc_dec+0x297/0x340 net/ipv6/mcast.c:1005 addrconf_leave_solict net/ipv6/addrconf.c:2273 [inline] __ipv6_ifa_notify+0x3dd/0xf90 net/ipv6/addrconf.c:6334 addrconf_ifdown.isra.0+0xe78/0x1b70 net/ipv6/addrconf.c:4012 addrconf_notify+0x4a3/0x1ba0 net/ipv6/addrconf.c:3811 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2250 call_netdevice_notifiers_extack net/core/dev.c:2288 [inline] call_netdevice_notifiers net/core/dev.c:2302 [inline] netif_close_many+0x319/0x630 net/core/dev.c:1806 unregister_netdevice_many_notify+0x840/0x2140 net/core/dev.c:12416 ops_exit_rtnl_list net/core/net_namespace.c:187 [inline] ops_undo_list+0x8ff/0xab0 net/core/net_namespace.c:248 cleanup_net+0x499/0x920 net/core/net_namespace.c:702 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Kernel Offset: disabled Rebooting in 86400 seconds..