cred 130KB 328KB anon_vma_chain 83KB 236KB anon_vma 107KB 342KB pid 152KB 382KB Acpi-Operand 195KB 332KB Acpi-ParseExt 31KB 39KB Acpi-Parse 12KB 23KB Acpi-State 9KB 23KB Acpi-Namespace 35KB 52KB shared_policy_node 13KB 16KB numa_policy 3KB 15KB perf_event 15KB 31KB trace_event_file 540KB 540KB ftrace_event_field 1020KB 1023KB pool_workqueue 2116KB 2144KB task_group 91KB 108KB maple_node 485KB 1304KB mm_struct 143KB 490KB vmap_area 274KB 1196KB debug_objects_cache 2975KB 7401KB page->ptl 18KB 102KB kmalloc-cg-8k 2576KB 2720KB kmalloc-cg-4k 19440KB 20448KB kmalloc-cg-2k 12772KB 13184KB kmalloc-cg-1k 3518KB 3808KB kmalloc-cg-512 1555KB 1888KB kmalloc-cg-256 600KB 608KB kmalloc-cg-128 333KB 340KB kmalloc-cg-64 86KB 124KB kmalloc-cg-32 38KB 168KB kmalloc-cg-16 4KB 24KB kmalloc-cg-8 25KB 44KB kmalloc-cg-192 74KB 104KB kmalloc-cg-96 67KB 92KB kmalloc-8k 7856KB 8160KB kmalloc-4k 47168KB 47264KB kmalloc-2k 12012KB 14080KB kmalloc-1k 10014KB 11512KB kmalloc-512 14267KB 16168KB kmalloc-256 6282KB 6292KB kmalloc-128 6189KB 10184KB kmalloc-64 3143KB 3392KB kmalloc-32 2134KB 4860KB kmalloc-16 512KB 1116KB kmalloc-8 539KB 900KB kmalloc-192 4194KB 5436KB kmalloc-96 1553KB 1896KB kmem_cache_node 213KB 220KB kmem_cache 177KB 234KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 0 UID: 0 PID: 8538 Comm: syz.3.16506 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 04/01/2014 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:1182 __alloc_pages_may_oom mm/page_alloc.c:4139 [inline] __alloc_pages_slowpath mm/page_alloc.c:4937 [inline] __alloc_frozen_pages_noprof+0x233d/0x2ba0 mm/page_alloc.c:5263 alloc_slab_page mm/slub.c:3269 [inline] allocate_slab mm/slub.c:3466 [inline] new_slab+0x253/0x6d0 mm/slub.c:3516 refill_objects+0x26b/0x400 mm/slub.c:7153 refill_sheaf mm/slub.c:2818 [inline] alloc_full_sheaf mm/slub.c:2839 [inline] __pcs_replace_empty_main+0x19f/0x600 mm/slub.c:4602 alloc_from_pcs mm/slub.c:4695 [inline] slab_alloc_node mm/slub.c:4829 [inline] __do_kmalloc_node mm/slub.c:5237 [inline] __kmalloc_noprof+0x688/0x850 mm/slub.c:5250 flush_all_backlogs net/core/dev.c:6532 [inline] unregister_netdevice_many_notify+0x903/0x2580 net/core/dev.c:12391 vlan_device_event+0x13e8/0x2300 net/8021q/vlan.c:515 notifier_call_chain+0x99/0x420 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] unregister_netdevice_many_notify+0x1208/0x2580 net/core/dev.c:12412 unregister_netdevice_many net/core/dev.c:12475 [inline] unregister_netdevice_queue net/core/dev.c:12289 [inline] unregister_netdevice_queue+0x30b/0x3c0 net/core/dev.c:12279 unregister_netdevice include/linux/netdevice.h:3408 [inline] __tun_detach+0x1173/0x1480 drivers/net/tun.c:621 tun_detach drivers/net/tun.c:637 [inline] tun_chr_close+0xc2/0x220 drivers/net/tun.c:3436 __fput+0x3ff/0xb40 fs/file_table.c:469 task_work_run+0x150/0x240 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x829/0x2aa0 kernel/exit.c:971 do_group_exit+0xd5/0x2a0 kernel/exit.c:1112 get_signal+0x1ec7/0x21e0 kernel/signal.c:3034 arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] __do_fast_syscall_32+0x578/0x8c0 arch/x86/entry/syscall_32.c:310 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf6feef6c Code: Unable to access opcode bytes at 0xf6feef42. RSP: 002b:00000000ffacb2cc EFLAGS: 00000202 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000000001e RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..