RAX: 0000000000000000 RBX: 00007ffd369e9c10 RCX: 00007f103728edd3 RDX: 0000000000000000 RSI: 00007ffd369e9dc0 RDI: 000000000000000b RBP: 00007ffd369e9dc0 R08: 00007ffd369e9e40 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffd369ea1a0 R14: 0000000000000000 R15: 0000000000000000 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 0, t=10541 jiffies, g=40661, q=39) rcu: All QSes seen, last rcu_preempt kthread activity 10463 (4294985938-4294975475), jiffies_till_next_fqs=1, root ->qsmask 0x0 init R running task 12488 1 0 0x80000008 Call Trace: sched_show_task.cold.81+0x2b6/0x30a kernel/sched/core.c:5301 print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286 check_cpu_stall kernel/rcu/tree.c:1415 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xfd7/0x13f0 kernel/rcu/tree.c:2506 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 Code: 3f 7e 0f 85 32 ff ff ff e8 65 5d 3e ff e9 28 ff ff ff e8 9c 6c c3 ff 48 83 3d d4 db 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 14 RSP: 0000:ffff8801dae071d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b34dd30 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801dae07248 R08: ffff8801d9a6e980 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: ffff8801d9bcc600 R13: ffff8801d9bcc600 R14: 0000000000000000 R15: 0000000000000286 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 b5 da 89 f9 e8 50 bb b9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 8a 2a 86 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 60 2a RSP: 0000:ffff8801d9a76100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a3f48 RBX: 0000000000000000 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d9a6e8bc RBP: ffff8801d9a76128 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: dffffc0000000000 R13: fffffbfff12a3f47 R14: ffffffff8951fa40 R15: ffffffff8951fa38 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 30 fa 51 89 e8 a1 9c fd f9 48 83 3d 29 00 8d 01 00 0f 84 63 fe ff ff e8 ee 69 ba f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 db 69 ba f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d9a761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801d9a6e040 RBX: 1ffffffff12a3f46 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: ffffffff87c4fa12 RDI: 0000000000000293 RBP: ffff8801d9a76290 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: 1ffff1003b34ec45 R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924 page_cache_read mm/filemap.c:2312 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2496 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3ea6/0x5be0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f103728edd3 Code: Bad RIP value. RSP: 002b:00007ffd369e9a68 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffd369e9c10 RCX: 00007f103728edd3 RDX: 0000000000000000 RSI: 00007ffd369e9dc0 RDI: 000000000000000b RBP: 00007ffd369e9dc0 R08: 00007ffd369e9e40 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffd369ea1a0 R14: 0000000000000000 R15: 0000000000000000 rcu: rcu_preempt kthread starved for 10463 jiffies! g40661 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 21384 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3480 schedule+0xfe/0x460 kernel/sched/core.c:3524 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor2 cpuset=syz2 mems_allowed=0 init cpuset=/ mems_allowed=0 CPU: 1 PID: 17909 Comm: syz-executor2 Not tainted 4.19.0+ #73 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+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 f3 28 3e ff e9 28 ff ff ff e8 2a 38 c3 ff 48 83 3d 62 a7 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 14 RSP: 0000:ffff8801997c7498 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff880199902f80 RDI: 0000000000000286 RBP: ffff8801997c7510 R08: ffff880199902700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3683 [inline] __kmalloc_node_track_caller+0x3c/0x70 mm/slab.c:3698 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_3aea14b1f6cd0d8b+0xdc4/0x1000 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #73 Mem-Info: active_anon:54290 inactive_anon:131 isolated_anon:0 active_file:14 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9370 slab_unreclaimable:1465411 mapped:49154 shmem:138 pagetables:633 bounce:0 free:13712 free_pcp:273 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:552kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2818 6321 6321 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 Node 0 DMA32 free:25092kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888756kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 Node 0 Normal free:13848kB min:37364kB low:46704kB high:56044kB active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5504kB pagetables:2532kB bounce:0kB free_pcp:844kB local_pcp:356kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (UM) 4*32kB (M) 3*64kB (UM) 5*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25092kB Node 0 Normal: 736*4kB (UMEH) 435*8kB (MEH) 186*16kB (ME) 69*32kB (UME) 7*64kB (MH) 0*128kB 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 13848kB __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 167 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342858 pages reserved 0 pages cma reserved syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor2 cpuset=syz2 mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 b5 da 89 f9 e8 50 bb b9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 8a 2a 86 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 60 2a RSP: 0000:ffff8801d9a76100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a3f48 RBX: 0000000000000000 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d9a6e8bc RBP: ffff8801d9a76128 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: dffffc0000000000 R13: fffffbfff12a3f47 R14: ffffffff8951fa40 R15: ffffffff8951fa38 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 30 fa 51 89 e8 a1 9c fd f9 48 83 3d 29 00 8d 01 00 0f 84 63 fe ff ff e8 ee 69 ba f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 db 69 ba f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d9a761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801d9a6e040 RBX: 1ffffffff12a3f46 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: ffffffff87c4fa12 RDI: 0000000000000293 RBP: ffff8801d9a76290 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: 1ffff1003b34ec45 R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924 page_cache_read mm/filemap.c:2312 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2496 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3ea6/0x5be0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f103728edd3 Code: Bad RIP value. RSP: 002b:00007ffd369e9a68 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffd369e9c10 RCX: 00007f103728edd3 RDX: 0000000000000000 RSI: 00007ffd369e9dc0 RDI: 000000000000000b RBP: 00007ffd369e9dc0 R08: 00007ffd369e9e40 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffd369ea1a0 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 17909 Comm: syz-executor2 Not tainted 4.19.0+ #73 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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+0x244/0x39d lib/dump_stack.c:113 init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 init cpuset=/ mems_allowed=0 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 f3 28 3e ff e9 28 ff ff ff e8 2a 38 c3 ff 48 83 3d 62 a7 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 14 RSP: 0000:ffff8801997c7498 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff880199902f80 RDI: 0000000000000286 RBP: ffff8801997c7510 R08: ffff880199902700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3683 [inline] __kmalloc_node_track_caller+0x3c/0x70 mm/slab.c:3698 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_3aea14b1f6cd0d8b+0xdc4/0x1000 CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #73 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:54290 inactive_anon:131 isolated_anon:0 active_file:14 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9370 slab_unreclaimable:1465411 mapped:49154 shmem:138 pagetables:633 bounce:0 free:13712 free_pcp:273 free_cma:0 Call Trace: Node 0 active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:552kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2818 6321 6321 Node 0 DMA32 free:25092kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888756kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13848kB min:37364kB low:46704kB high:56044kB active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5504kB pagetables:2532kB bounce:0kB free_pcp:844kB local_pcp:356kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (UM) 4*32kB (M) 3*64kB (UM) 5*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25092kB __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 Node 0 Normal: 736*4kB (UMEH) 435*8kB (MEH) 186*16kB (ME) 69*32kB (UME) 7*64kB (MH) 0*128kB 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 13848kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 167 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342858 pages reserved 0 pages cma reserved syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor2 cpuset=syz2 mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 b5 da 89 f9 e8 50 bb b9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 8a 2a 86 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 60 2a RSP: 0000:ffff8801d9a76100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a3f48 RBX: 0000000000000000 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d9a6e8bc RBP: ffff8801d9a76128 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: dffffc0000000000 R13: fffffbfff12a3f47 R14: ffffffff8951fa40 R15: ffffffff8951fa38 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 30 fa 51 89 e8 a1 9c fd f9 48 83 3d 29 00 8d 01 00 0f 84 63 fe ff ff e8 ee 69 ba f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 db 69 ba f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d9a761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801d9a6e040 RBX: 1ffffffff12a3f46 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: ffffffff87c4fa12 RDI: 0000000000000293 RBP: ffff8801d9a76290 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: 1ffff1003b34ec45 R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924 page_cache_read mm/filemap.c:2312 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2496 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3ea6/0x5be0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f103728edd3 Code: Bad RIP value. RSP: 002b:00007ffd369e9a68 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffd369e9c10 RCX: 00007f103728edd3 RDX: 0000000000000000 RSI: 00007ffd369e9dc0 RDI: 000000000000000b RBP: 00007ffd369e9dc0 R08: 00007ffd369e9e40 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffd369ea1a0 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 17909 Comm: syz-executor2 Not tainted 4.19.0+ #73 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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+0x244/0x39d lib/dump_stack.c:113 init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 init cpuset=/ mems_allowed=0 __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] nlmsg_new include/net/netlink.h:654 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node_trace+0x249/0x740 mm/slab.c:3661 Code: 3f 7e 0f 85 32 ff ff ff e8 f3 28 3e ff e9 28 ff ff ff e8 2a 38 c3 ff 48 83 3d 62 a7 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 c1 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 14 RSP: 0000:ffff8801997c7498 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff880199902f80 RDI: 0000000000000286 RBP: ffff8801997c7510 R08: ffff880199902700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da800940 R13: ffff8801da800940 R14: 0000000000000000 R15: 0000000000000286 __do_kmalloc_node mm/slab.c:3683 [inline] __kmalloc_node_track_caller+0x3c/0x70 mm/slab.c:3698 __kmalloc_reserve.isra.40+0xcc/0xe0 net/core/skbuff.c:145 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460 skb_ensure_writable+0x3dd/0x640 net/core/skbuff.c:5071 __bpf_try_make_writable net/core/filter.c:1638 [inline] bpf_try_make_writable net/core/filter.c:1644 [inline] bpf_try_make_head_writable net/core/filter.c:1652 [inline] ____bpf_clone_redirect net/core/filter.c:2089 [inline] bpf_clone_redirect+0x14a/0x490 net/core/filter.c:2067 bpf_prog_3aea14b1f6cd0d8b+0xdc4/0x1000 CPU: 0 PID: 1 Comm: init Not tainted 4.19.0+ #73 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:54290 inactive_anon:131 isolated_anon:0 active_file:14 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9370 slab_unreclaimable:1465411 mapped:49154 shmem:138 pagetables:633 bounce:0 free:13712 free_pcp:273 free_cma:0 Call Trace: Node 0 active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:552kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2818 6321 6321 Node 0 DMA32 free:25092kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888756kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13848kB min:37364kB low:46704kB high:56044kB active_anon:217160kB inactive_anon:524kB active_file:56kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5504kB pagetables:2532kB bounce:0kB free_pcp:844kB local_pcp:356kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (UM) 4*32kB (M) 3*64kB (UM) 5*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25092kB __alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4303 Node 0 Normal: 736*4kB (UMEH) 435*8kB (MEH) 186*16kB (ME) 69*32kB (UME) 7*64kB (MH) 0*128kB 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 13848kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 167 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342858 pages reserved 0 pages cma reserved syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor2 cpuset=syz2 mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 b5 da 89 f9 e8 50 bb b9 f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 8a 2a 86 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 60 2a RSP: 0000:ffff8801d9a76100 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12a3f48 RBX: 0000000000000000 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d9a6e8bc RBP: ffff8801d9a76128 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: dffffc0000000000 R13: fffffbfff12a3f47 R14: ffffffff8951fa40 R15: ffffffff8951fa38 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 30 fa 51 89 e8 a1 9c fd f9 48 83 3d 29 00 8d 01 00 0f 84 63 fe ff ff e8 ee 69 ba f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 db 69 ba f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d9a761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801d9a6e040 RBX: 1ffffffff12a3f46 RCX: 1ffff1003b34dd26 RDX: 0000000000000000 RSI: ffffffff87c4fa12 RDI: 0000000000000293 RBP: ffff8801d9a76290 R08: ffff8801d9a6e930 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9a6e040 R12: 1ffff1003b34ec45 R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2354/0x2e10 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924 page_cache_read mm/filemap.c:2312 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2496 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3ea6/0x5be0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x7f103728edd3 Code: Bad RIP value. RSP: 002b:00007ffd369e9a68 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007ffd369e9c10 RCX: 00007f103728edd3 RDX: 0000000000000000 RSI: 00007ffd369e9dc0 RDI: 000000000000000b RBP: 00007ffd369e9dc0 R08: 00007ffd369e9e40 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007ffd369ea1a0 R14: 0000000000000000 R15: 0000000000000000 CPU: 1 PID: 17909 Comm: syz-executor2 Not tainted 4.19.0+ #73 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb 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+0x244/0x39d lib/dump_stack.c:113 init: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3424 init cpuset=/ mems_allowed=0