CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71 rcu: INFO: rcu_preempt self-detected stall on CPU Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: 1-...!: (99 ticks this GP) idle=df2/1/0x4000000000000004 softirq=31929/31929 fqs=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 rcu: (t=10738 jiffies g=44189 q=14) rcu: rcu_preempt kthread starved for 10738 jiffies! g44189 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 23016 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2826 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474 schedule+0xfe/0x460 kernel/sched/core.c:3518 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 __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 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 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 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 NMI backtrace for cpu 1 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:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 30 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959 RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293 RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06 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:3522 [inline] __alloc_pages_slowpath+0x22d4/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 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: 0033:0x7f88dd4451fd Code: Bad RIP value. RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000 R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71 Mem-Info: active_anon:45072 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9478 slab_unreclaimable:1479054 mapped:49154 shmem:119 pagetables:662 bounce:0 free:13765 free_pcp:108 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2820 6323 6323 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101 Node 0 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 DMA32 free:25276kB 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:2890764kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 lowmem_reserve[]: trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 0 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 0 3503 3503 Node 0 Normal free:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB check_cpu_stall kernel/rcu/tree.c:1408 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506 (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) 0*8kB 3*16kB (UM) 4*32kB (MH) 4*64kB (UMH) 2*128kB (M) 4*256kB update_process_times+0x2d/0x70 kernel/time/timer.c:1636 (M) tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 4*512kB tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 (MH) __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 3*1024kB (MH) 3*2048kB (M) 3*4096kB (M) = 25276kB Node 0 Normal: 1035*4kB (UMEH) 493*8kB hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 (UME) 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 178*16kB (UME) 60*32kB (UME) 0*64kB 0*128kB 0*256kB 0*512kB apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 1*1024kB 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 (U) Code: 40 7e 0f 85 32 ff ff ff e8 55 90 3e ff e9 28 ff ff ff e8 ec c1 c3 ff 48 83 3d c4 0a 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 12 5d 0*2048kB RSP: 0018:ffff8801daf07450 EFLAGS: 00000286 0*4096kB = 13876kB ORIG_RAX: ffffffffffffff13 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10037982549 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff8801daf074c0 R08: ffff8801bcc12a48 R09: 0000000000000002 147 total pagecache pages R10: 0000000000000000 R11: ffff8801bcc12180 R12: ffff8801d9a05040 R13: ffff8801d9a05040 R14: 0000000000000000 R15: 0000000000000286 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342292 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) 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 rsyslogd cpuset= addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 / call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 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+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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286 RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000 CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71 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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor0 cpuset= __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz0 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_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_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 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959 RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293 RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06 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:3522 [inline] __alloc_pages_slowpath+0x22d4/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 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: 0033:0x7f88dd4451fd Code: Bad RIP value. RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000 R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003 CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71 Mem-Info: active_anon:45072 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9478 slab_unreclaimable:1479054 mapped:49154 shmem:119 pagetables:662 bounce:0 free:13765 free_pcp:108 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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[]: 0 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 2820 6323 6323 Node 0 DMA32 free:25276kB 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:2890764kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 0 0 3503 3503 Node 0 Normal free:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB 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) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) 0*8kB __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 3*16kB (UM) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 4*32kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (MH) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 4*64kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UMH) 2*128kB (M) 4*256kB (M) 4*512kB (MH) 3*1024kB (MH) alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 3*2048kB (M) ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 3*4096kB (M) addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 = 25276kB Node 0 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Normal: 1035*4kB (UMEH) 493*8kB (UME) 178*16kB (UME) 60*32kB (UME) 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 0*2048kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*4096kB = 13876kB 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 147 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 342292 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 / mems_allowed=0 __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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286 RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000 CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71 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 syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor0 cpuset= syz0 mems_allowed=0 __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_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_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 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959 RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293 RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06 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:3522 [inline] __alloc_pages_slowpath+0x22d4/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 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: 0033:0x7f88dd4451fd Code: Bad RIP value. RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000 R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003 CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: active_anon:45072 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9478 slab_unreclaimable:1479054 mapped:49154 shmem:119 pagetables:662 bounce:0 free:13765 free_pcp:108 free_cma:0 Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 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 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426 lowmem_reserve[]: 0 2820 6323 6323 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 Node 0 DMA32 free:25276kB 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:2890764kB 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:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) __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 1*2048kB (M) fallback_alloc+0x204/0x2e0 mm/slab.c:3219 3*4096kB ____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 = 15908kB Node 0 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 DMA32: 3*4kB (M) 0*8kB 3*16kB (UM) 4*32kB (MH) 4*64kB (UMH) 2*128kB 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 (M) 4*256kB (M) 4*512kB br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 (MH) 3*1024kB (MH) br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 3*2048kB (M) 3*4096kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (M) = 25276kB Node 0 Normal: 1035*4kB (UMEH) 493*8kB (UME) 178*16kB (UME) 60*32kB (UME) 0*64kB 0*128kB 0*256kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 13876kB 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 147 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 342292 pages reserved run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= __do_softirq+0x308/0xb7e kernel/softirq.c:292 / 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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286 RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000 CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71 syz-executor0: 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-executor0 cpuset= Call Trace: syz0 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_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_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 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959 RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293 RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06 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:3522 [inline] __alloc_pages_slowpath+0x22d4/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 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: 0033:0x7f88dd4451fd Code: Bad RIP value. RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000 R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003 CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71 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:45072 inactive_anon:112 isolated_anon:0 active_file:13 inactive_file:15 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9478 slab_unreclaimable:1479054 mapped:49154 shmem:119 pagetables:662 bounce:0 free:13765 free_pcp:108 free_cma:0 Call Trace: Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2820 6323 6323 Node 0 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297 DMA32 free:25276kB 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:2890764kB 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:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB 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) = 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 3*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 0*8kB 3*16kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 4*32kB (MH) 4*64kB (UMH) 2*128kB (M) 4*256kB (M) 4*512kB 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 (MH) 3*1024kB (MH) 3*2048kB (M) br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440 3*4096kB (M) = 25276kB br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253 Node 0 Normal: call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 1035*4kB (UMEH) 493*8kB (UME) 178*16kB (UME) 60*32kB (UME) 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0*2048kB 0*4096kB = 13876kB 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 147 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 342292 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 rsyslogd cpuset= / __do_softirq+0x308/0xb7e kernel/softirq.c:292 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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286 RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000