task_struct 3681KB 4884KB cred 122KB 348KB anon_vma_chain 101KB 279KB anon_vma 116KB 375KB pid 136KB 375KB Acpi-Operand 195KB 312KB Acpi-ParseExt 21KB 39KB Acpi-Parse 13KB 27KB Acpi-State 16KB 39KB Acpi-Namespace 35KB 48KB numa_policy 7KB 8KB perf_event 15KB 31KB trace_event_file 540KB 540KB ftrace_event_field 1031KB 1031KB pool_workqueue 2040KB 2176KB task_group 73KB 94KB maple_node 444KB 1376KB mm_struct 171KB 428KB vmap_area 274KB 1109KB debug_objects_cache 2350KB 5389KB page->ptl 23KB 118KB kmalloc-cg-8k 1344KB 1504KB kmalloc-cg-4k 11104KB 12320KB kmalloc-cg-2k 7032KB 7680KB kmalloc-cg-1k 1972KB 2496KB kmalloc-cg-512 954KB 1408KB kmalloc-cg-256 315KB 360KB kmalloc-cg-128 204KB 256KB kmalloc-cg-64 45KB 72KB kmalloc-cg-32 36KB 168KB kmalloc-cg-16 5KB 28KB kmalloc-cg-8 15KB 40KB kmalloc-cg-192 52KB 76KB kmalloc-cg-96 53KB 76KB kmalloc-8k 5168KB 5568KB kmalloc-4k 40856KB 40928KB kmalloc-2k 11632KB 13120KB kmalloc-1k 8200KB 8320KB kmalloc-512 10307KB 11072KB kmalloc-256 6140KB 6144KB kmalloc-128 1949KB 2168KB kmalloc-64 5049KB 6644KB kmalloc-32 1429KB 2652KB kmalloc-16 394KB 472KB kmalloc-8 355KB 408KB kmalloc-192 1360KB 1892KB kmalloc-96 2581KB 3028KB kmem_cache_node 213KB 220KB kmem_cache 176KB 218KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 0 UID: 0 PID: 70 Comm: kworker/u32:4 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:650 panic+0xd1/0xe0 kernel/panic.c:787 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:4914 [inline] __alloc_frozen_pages_noprof+0x232d/0x2bc0 mm/page_alloc.c:5239 alloc_slab_page mm/slub.c:3278 [inline] allocate_slab mm/slub.c:3475 [inline] new_slab+0x25d/0x6c0 mm/slub.c:3525 refill_objects+0x277/0x420 mm/slub.c:7255 refill_sheaf mm/slub.c:2816 [inline] __pcs_replace_empty_main+0x375/0x650 mm/slub.c:4651 alloc_from_pcs mm/slub.c:4749 [inline] slab_alloc_node mm/slub.c:4883 [inline] kmem_cache_alloc_node_noprof+0x569/0x6f0 mm/slub.c:4950 kmalloc_reserve+0x148/0x350 net/core/skbuff.c:613 __alloc_skb+0x185/0x710 net/core/skbuff.c:713 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_dec+0x297/0x340 net/ipv6/mcast.c:1002 addrconf_leave_solict net/ipv6/addrconf.c:2257 [inline] __ipv6_ifa_notify+0x3dd/0xf90 net/ipv6/addrconf.c:6311 addrconf_ifdown.isra.0+0xe78/0x1b70 net/ipv6/addrconf.c:3989 addrconf_notify+0x4a3/0x1ba0 net/ipv6/addrconf.c:3788 notifier_call_chain+0x99/0x400 kernel/notifier.c:85 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2249 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_close_many+0x319/0x630 net/core/dev.c:1805 unregister_netdevice_many_notify+0x840/0x24f0 net/core/dev.c:12388 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+0xa0e/0x1980 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3466 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..