CPU: 1 PID: 5702 Comm: rsyslogd Not tainted 4.19.0-rc6+ #118 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=10712 jiffies, g=90369, q=135) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 rcu: All QSes seen, last rcu_preempt kthread activity 10548 (4295003843-4294993295), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor0 R running task warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 22896 7592 5826 0x8010000c Call Trace: sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430 check_cpu_stall kernel/rcu/tree.c:1557 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665 __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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 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 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [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 a5 7f 3e ff e9 28 ff ff ff e8 0c e3 c2 ff 48 83 3d 5c f4 6f 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 62 23 RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffffff8184e1ca RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286 RBP: ffff8801dae074c0 R08: ffff880193c38700 R09: fffffbfff12812c4 R10: ffff8801dae06098 R11: ffffffff89409623 R12: ffff8801d9a04040 R13: ffff8801d9a04040 R14: 0000000000000000 R15: 0000000000000286 __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 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0xfdf/0x1160 kernel/printk/printk.c:2409 Code: c1 e8 03 42 80 3c 20 00 0f 85 d1 00 00 00 48 83 3d cd 54 cd 07 00 0f 84 bc 00 00 00 e8 ca 37 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cc f9 ff ff 48 8b bd c8 fe ff ff e8 3b d8 5d 00 RSP: 0000:ffff8801bccde450 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 RAX: ffff8801bd36a180 RBX: 0000000000000200 RCX: ffffffff8184e1ca RDX: 0000000000000000 RSI: ffffffff81649dc6 RDI: 0000000000000293 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 RBP: ffff8801bccde5b8 R08: ffff8801bd36a180 R09: fffffbfff12720c0 R10: fffffbfff12720c0 R11: ffffffff89390603 R12: dffffc0000000000 R13: ffffffff84885bf0 R14: dffffc0000000000 R15: ffffffff899428d0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [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 06 60 3e ff e9 c5 fe ff ff e8 6d c3 c2 ff 48 83 3d bd d4 6f 07 00 0f 84 3b 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 62 23 RSP: 0000:ffff8801980a7748 EFLAGS: 00000286 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 ORIG_RAX: ffffffffffffff13 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc90001e5c000 printk+0xa7/0xcf kernel/printk/printk.c:1996 RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286 RBP: ffff8801980a77b0 R08: ffff880193c38700 R09: fffffbfff12812c4 R10: ffff8801980a6390 R11: ffffffff89409623 R12: 0000000000000000 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_41f2bcae09cd4ac3+0x194/0x1000 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:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 rcu: rcu_preempt kthread starved for 10548 jiffies! g90369 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22736 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 schedule+0xfe/0x460 kernel/sched/core.c:3517 __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+0x91/0x8c0 mm/slab.c:2677 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 kmalloc include/linux/slab.h:513 [inline] syslog_print kernel/printk/printk.c:1297 [inline] do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5bbee581fd Code: Bad RIP value. RSP: 002b:00007f5bbc3f7e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001bc9ce0 RCX: 00007f5bbee581fd RDX: 0000000000000fff RSI: 00007f5bbdc2c5a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001bb5260 R09: 0000000000000000 R10: 6b205d3334383630 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f5bbc3f89c0 R14: 00007f5bbf49d040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:48193 inactive_anon:137 isolated_anon:0 active_file:16 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9165 slab_unreclaimable:1475206 mapped:8194 shmem:144 pagetables:402 bounce:0 free:13771 free_pcp:443 free_cma:0 Node 0 active_anon:192772kB inactive_anon:548kB active_file:64kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:576kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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[]: 0 2819 6323 6323 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13912kB min:37352kB low:46688kB high:56024kB active_anon:192772kB inactive_anon:548kB active_file:60kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:1608kB bounce:0kB free_pcp:1524kB local_pcp:1456kB free_cma:0kB lowmem_reserve[]: kthread+0x35a/0x420 kernel/kthread.c:246 0 0 0 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 0 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) (U) syz-executor0 cpuset= 2*64kB syz0 (U) mems_allowed=0 1*128kB CPU: 0 PID: 7592 Comm: syz-executor0 Not tainted 4.19.0-rc6+ #118 (U) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 1*256kB (U) Call Trace: 0*512kB 1*1024kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 (U) 1*2048kB warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 (M) 3*4096kB (M) = 15908kB Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32: 4*4kB (UM) 2*8kB (M) 3*16kB (M) 3*32kB (M) 4*64kB (UM) 4*128kB (UM) 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 942*4kB (UME) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 338*8kB (UMEH) 149*16kB (UME) 84*32kB (UMEH) __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+0x91/0x8c0 mm/slab.c:2677 25*64kB (UM) 2*128kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (UH) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 0*256kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 1*512kB (H) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 0*1024kB 0*2048kB 0*4096kB = 13912kB 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 175 total pagecache pages 0 pages in swap cache alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 Swap cache stats: add 0, delete 0, find 0/0 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 Free swap = 0kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 Total swap = 0kB 1965979 pages RAM call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 0 pages HighMem/MovableOnly 342307 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 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+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [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 06 60 3e ff e9 c5 fe ff ff e8 6d c3 c2 ff 48 83 3d bd d4 6f 07 00 0f 84 3b 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 62 23 RSP: 0000:ffff8801980a7748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc90001e5c000 RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286 RBP: ffff8801980a77b0 R08: ffff880193c38700 R09: fffffbfff12812c4 R10: ffff8801980a6390 R11: ffffffff89409623 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_41f2bcae09cd4ac3+0x194/0x1000 Mem-Info: CPU: 1 PID: 5702 Comm: rsyslogd Not tainted 4.19.0-rc6+ #118 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:48193 inactive_anon:137 isolated_anon:0 active_file:16 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9165 slab_unreclaimable:1475206 mapped:8194 shmem:144 pagetables:402 bounce:0 free:13771 free_pcp:443 free_cma:0 Call Trace: Node 0 active_anon:192772kB inactive_anon:548kB active_file:64kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:576kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 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.119+0xb7/0x1bd mm/page_alloc.c:3426 0 2819 6323 6323 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13912kB min:37352kB low:46688kB high:56024kB active_anon:192772kB inactive_anon:548kB active_file:60kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:1608kB bounce:0kB free_pcp:1524kB local_pcp:68kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 3*4096kB (M) = 15908kB Node 0 DMA32: __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+0x91/0x8c0 mm/slab.c:2677 4*4kB (UM) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 2*8kB ____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 3*16kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 3*32kB (M) 4*64kB (UM) 4*128kB (UM) 3*256kB alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (M) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 4*512kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (UM) 3*1024kB (UM) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 942*4kB (UME) 338*8kB (UMEH) 149*16kB (UME) 84*32kB (UMEH) 25*64kB (UM) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 2*128kB (UH) 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13912kB 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 175 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 1965979 pages RAM 0 pages HighMem/MovableOnly __do_softirq+0x30b/0xad8 kernel/softirq.c:292 342307 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= syz0 mems_allowed=0 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0xfdf/0x1160 kernel/printk/printk.c:2409 Code: c1 e8 03 42 80 3c 20 00 0f 85 d1 00 00 00 48 83 3d cd 54 cd 07 00 0f 84 bc 00 00 00 e8 ca 37 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cc f9 ff ff 48 8b bd c8 fe ff ff e8 3b d8 5d 00 RSP: 0000:ffff8801bccde450 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd36a180 RBX: 0000000000000200 RCX: ffffffff8184e1ca RDX: 0000000000000000 RSI: ffffffff81649dc6 RDI: 0000000000000293 RBP: ffff8801bccde5b8 R08: ffff8801bd36a180 R09: fffffbfff12720c0 R10: fffffbfff12720c0 R11: ffffffff89390603 R12: dffffc0000000000 R13: ffffffff84885bf0 R14: dffffc0000000000 R15: ffffffff899428d0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] syslog_print kernel/printk/printk.c:1297 [inline] do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5bbee581fd Code: Bad RIP value. RSP: 002b:00007f5bbc3f7e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001bc9ce0 RCX: 00007f5bbee581fd RDX: 0000000000000fff RSI: 00007f5bbdc2c5a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001bb5260 R09: 0000000000000000 R10: 6b205d3334383630 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f5bbc3f89c0 R14: 00007f5bbf49d040 R15: 0000000000000003 CPU: 0 PID: 7592 Comm: syz-executor0 Not tainted 4.19.0-rc6+ #118 Mem-Info: active_anon:48193 inactive_anon:137 isolated_anon:0 active_file:16 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9165 slab_unreclaimable:1475206 mapped:8194 shmem:144 pagetables:402 bounce:0 free:13771 free_pcp:443 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:192772kB inactive_anon:548kB active_file:64kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:576kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13912kB min:37352kB low:46688kB high:56024kB active_anon:192772kB inactive_anon:548kB active_file:60kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:1608kB bounce:0kB free_pcp:1524kB local_pcp:1456kB 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 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 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+0x91/0x8c0 mm/slab.c:2677 = 15908kB Node 0 fallback_alloc+0x203/0x2e0 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 (UM) 2*8kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (M) 3*16kB (M) 3*32kB (M) 4*64kB 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*128kB addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 (UM) 3*256kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 942*4kB (UME) 338*8kB (UMEH) 149*16kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 (UME) 84*32kB (UMEH) 25*64kB (UM) 2*128kB (UH) 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13912kB 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 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 175 total pagecache pages 0 pages in swap cache __do_softirq+0x30b/0xad8 kernel/softirq.c:292 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342307 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= invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 / exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 mems_allowed=0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [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 06 60 3e ff e9 c5 fe ff ff e8 6d c3 c2 ff 48 83 3d bd d4 6f 07 00 0f 84 3b 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 62 23 RSP: 0000:ffff8801980a7748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc90001e5c000 RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286 RBP: ffff8801980a77b0 R08: ffff880193c38700 R09: fffffbfff12812c4 R10: ffff8801980a6390 R11: ffffffff89409623 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_41f2bcae09cd4ac3+0x194/0x1000 CPU: 1 PID: 5702 Comm: rsyslogd Not tainted 4.19.0-rc6+ #118 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+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor0 cpuset= syz0 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0xfdf/0x1160 kernel/printk/printk.c:2409 Code: c1 e8 03 42 80 3c 20 00 0f 85 d1 00 00 00 48 83 3d cd 54 cd 07 00 0f 84 bc 00 00 00 e8 ca 37 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cc f9 ff ff 48 8b bd c8 fe ff ff e8 3b d8 5d 00 RSP: 0000:ffff8801bccde450 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd36a180 RBX: 0000000000000200 RCX: ffffffff8184e1ca RDX: 0000000000000000 RSI: ffffffff81649dc6 RDI: 0000000000000293 RBP: ffff8801bccde5b8 R08: ffff8801bd36a180 R09: fffffbfff12720c0 R10: fffffbfff12720c0 R11: ffffffff89390603 R12: dffffc0000000000 R13: ffffffff84885bf0 R14: dffffc0000000000 R15: ffffffff899428d0 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1996 dump_unreclaimable_slab.cold.22+0xd8/0xe5 mm/slab_common.c:1371 dump_header+0x7cc/0xf72 mm/oom_kill.c:447 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:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] syslog_print kernel/printk/printk.c:1297 [inline] do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5bbee581fd Code: Bad RIP value. RSP: 002b:00007f5bbc3f7e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001bc9ce0 RCX: 00007f5bbee581fd RDX: 0000000000000fff RSI: 00007f5bbdc2c5a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001bb5260 R09: 0000000000000000 R10: 6b205d3334383630 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f5bbc3f89c0 R14: 00007f5bbf49d040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 7592 Comm: syz-executor0 Not tainted 4.19.0-rc6+ #118 Mem-Info: active_anon:48193 inactive_anon:137 isolated_anon:0 active_file:16 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9165 slab_unreclaimable:1475206 mapped:8194 shmem:144 pagetables:402 bounce:0 free:13771 free_pcp:443 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:192772kB inactive_anon:548kB active_file:64kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32776kB dirty:0kB writeback:0kB shmem:576kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 178176kB 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+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 2819 6323 6323 Node 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13912kB min:37352kB low:46688kB high:56024kB active_anon:192772kB inactive_anon:548kB active_file:60kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5248kB pagetables:1608kB bounce:0kB free_pcp:1524kB local_pcp:1456kB 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 __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+0x91/0x8c0 mm/slab.c:2677 (M) 3*4096kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) = 15908kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 Node 0 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 DMA32: 4*4kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 2*8kB (M) 3*16kB (M) 3*32kB (M) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 4*64kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (UM) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 4*128kB (UM) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 3*256kB (M) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25264kB Node 0 Normal: 942*4kB (UME) 338*8kB (UMEH) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 149*16kB (UME) 84*32kB (UMEH) 25*64kB (UM) 2*128kB (UH) 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13912kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 175 total pagecache pages __do_softirq+0x30b/0xad8 kernel/softirq.c:292 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 342307 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) invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 rsyslogd cpuset= exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 / mems_allowed=0 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [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 06 60 3e ff e9 c5 fe ff ff e8 6d c3 c2 ff 48 83 3d bd d4 6f 07 00 0f 84 3b 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 62 23 RSP: 0000:ffff8801980a7748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc90001e5c000 RDX: 0000000000000004 RSI: ffffffff8184e1e4 RDI: 0000000000000286 RBP: ffff8801980a77b0 R08: ffff880193c38700 R09: fffffbfff12812c4 R10: ffff8801980a6390 R11: ffffffff89409623 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280 ____bpf_clone_redirect net/core/filter.c:2079 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2066 bpf_prog_41f2bcae09cd4ac3+0x194/0x1000 CPU: 1 PID: 5702 Comm: rsyslogd Not tainted 4.19.0-rc6+ #118 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+0x1c4/0x2b4 lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= syz0 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 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+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 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