CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: (detected by 0, t=10627 jiffies, g=50005, q=52) rcu: All QSes seen, last rcu_preempt kthread activity 10627 (4294985082-4294974455), jiffies_till_next_fqs=1, root ->qsmask 0x0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz-executor5 R running task warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 17912 10132 5510 0x8010000c Call Trace: sched_show_task.cold.81+0x2b6/0x30a kernel/sched/core.c:5297 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 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 __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 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 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 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: 40 7e 0f 85 32 ff ff ff e8 15 92 3e ff e9 28 ff ff ff e8 ac c3 c3 ff 48 83 3d 84 0c 70 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 3b RSP: 0000:ffff8801dae07268 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10039b4994e RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801dae072d8 R08: ffff8801cda4ca70 R09: 0000000000000002 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 R10: 0000000000000000 R11: ffff8801cda4c180 R12: ffff8801d9bd2c80 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 R13: ffff8801d9bd2c80 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 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610 Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230 percpu_ref_put include/linux/percpu-refcount.h:301 [inline] css_put include/linux/cgroup.h:389 [inline] mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 shrink_node+0x516/0x16b0 mm/vmscan.c:2768 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __do_softirq+0x308/0xb7e kernel/softirq.c:292 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 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 mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 3b RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286 RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 ____bpf_clone_redirect net/core/filter.c:2080 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067 bpf_prog_bebbfe2050753572+0x141/0x1000 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 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 rcu: rcu_preempt kthread starved for 10627 jiffies! g50005 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22952 10 2 0x80000000 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 Call Trace: RIP: 0033:0x7f37615a51fd context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 Code: Bad RIP value. RSP: 002b:00007f375eb44e30 EFLAGS: 00010293 RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000 R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: schedule+0xfe/0x460 kernel/sched/core.c:3518 active_anon:48202 inactive_anon:2339 isolated_anon:0 active_file:15 inactive_file:11 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8987 slab_unreclaimable:1474273 mapped:49154 shmem:2346 pagetables:625 bounce:0 free:13781 free_pcp:75 free_cma:0 Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB 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 lowmem_reserve[]: schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 0 2819 6323 6323 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 3*16kB (M) 3*32kB (UM) 2*64kB (M) 3*128kB (UM) 4*256kB (M) 4*512kB (UM) 3*1024kB (UM) kthread+0x35a/0x420 kernel/kthread.c:246 3*2048kB (M) 3*4096kB (M) ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 = 25264kB syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) Node 0 syz-executor5 cpuset= Normal: syz5 796*4kB mems_allowed=0 (UME) CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134 394*8kB Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 (ME) Call Trace: 200*16kB (ME) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 78*32kB (UME) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 14*64kB (UM) 0*128kB 4*256kB (U) __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13952kB 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 2372 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 342293 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __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 mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 3b RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286 RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2080 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067 bpf_prog_bebbfe2050753572+0x141/0x1000 CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134 Mem-Info: active_anon:48202 inactive_anon:2339 isolated_anon:0 active_file:15 inactive_file:11 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8987 slab_unreclaimable:1474273 mapped:49154 shmem:2346 pagetables:625 bounce:0 free:13781 free_pcp:75 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 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[]: warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 0 3503 3503 Node 0 Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:248kB 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: 4*4kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 2*8kB (UM) 3*16kB (M) 3*32kB (UM) 2*64kB __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 (M) 3*128kB (UM) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 4*256kB (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*512kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (UM) 3*1024kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 796*4kB (UME) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 394*8kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (ME) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 200*16kB (ME) 78*32kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UME) 14*64kB (UM) 0*128kB 4*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13952kB 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 2372 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 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0 pages HighMem/MovableOnly 342293 pages reserved 0 pages cma reserved syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor5 cpuset= syz5 mems_allowed=0 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:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610 Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7 RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722 R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230 percpu_ref_put include/linux/percpu-refcount.h:301 [inline] css_put include/linux/cgroup.h:389 [inline] mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003 shrink_node+0x516/0x16b0 mm/vmscan.c:2768 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 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: 0033:0x7f37615a51fd Code: Bad RIP value. RSP: 002b:00007f375eb44e30 EFLAGS: 00010293 RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000 R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003 Mem-Info: CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:48202 inactive_anon:2339 isolated_anon:0 active_file:15 inactive_file:11 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8987 slab_unreclaimable:1474273 mapped:49154 shmem:2346 pagetables:625 bounce:0 free:13781 free_pcp:75 free_cma:0 Call Trace: Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 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[]: warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB __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 Node 0 DMA32: fallback_alloc+0x204/0x2e0 mm/slab.c:3219 4*4kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 2*8kB (UM) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*16kB (M) 3*32kB (UM) 2*64kB (M) 3*128kB (UM) 4*256kB (M) 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 4*512kB (UM) 3*1024kB (UM) 3*2048kB br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 (M) 3*4096kB (M) br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 = 25264kB Node 0 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Normal: 796*4kB (UME) 394*8kB (ME) 200*16kB (ME) 78*32kB (UME) 14*64kB (UM) 0*128kB 4*256kB (U) 0*512kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*1024kB 0*2048kB 0*4096kB = 13952kB 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 2372 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 342293 pages reserved run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb __do_softirq+0x308/0xb7e kernel/softirq.c:292 rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 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 mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 3b RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286 RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2080 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067 bpf_prog_bebbfe2050753572+0x141/0x1000 CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134 syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 syz-executor5 cpuset= Call Trace: syz5 mems_allowed=0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __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:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610 Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7 RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722 R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230 percpu_ref_put include/linux/percpu-refcount.h:301 [inline] css_put include/linux/cgroup.h:389 [inline] mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003 shrink_node+0x516/0x16b0 mm/vmscan.c:2768 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:2993 do_read_fault mm/memory.c:3405 [inline] do_fault mm/memory.c:3505 [inline] handle_pte_fault mm/memory.c:3736 [inline] __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897 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: 0033:0x7f37615a51fd Code: Bad RIP value. RSP: 002b:00007f375eb44e30 EFLAGS: 00010293 RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000 R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134 Mem-Info: active_anon:48202 inactive_anon:2339 isolated_anon:0 active_file:15 inactive_file:11 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:8987 slab_unreclaimable:1474273 mapped:49154 shmem:2346 pagetables:625 bounce:0 free:13781 free_pcp:75 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB 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 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2819 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 6323 6323 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 0 3503 3503 Node 0 Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) __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 = 15908kB Node 0 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 DMA32: ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 4*4kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (M) 2*8kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 3*16kB (M) 3*32kB (UM) 2*64kB (M) 3*128kB alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (UM) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 4*256kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (M) 4*512kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UM) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 796*4kB (UME) 394*8kB (ME) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 200*16kB (ME) 78*32kB (UME) 14*64kB (UM) 0*128kB 4*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13952kB 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 2372 total pagecache pages run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 __do_softirq+0x308/0xb7e kernel/softirq.c:292 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342293 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 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 mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 c2 3b RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286 RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2080 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067 bpf_prog_bebbfe2050753572+0x141/0x1000 CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134 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: syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor5 cpuset= __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz5 mems_allowed=0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __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:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610 Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7 RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722