RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cdef8 RBP: 000000c420035ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420035eb8 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 CPU: 1 PID: 19281 Comm: syz-executor1 Not tainted 4.19.0+ #306 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: 0-....: (99 ticks this GP) idle=466/1/0x4000000000000004 softirq=91464/91464 fqs=17 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 rcu: (t=10560 jiffies g=140761 q=9) rcu: rcu_preempt kthread starved for 2734 jiffies! g140761 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 rcu: RCU grace-period kthread stack dump: rcu_preempt I22696 10 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3480 schedule+0xfe/0x460 kernel/sched/core.c:3524 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 __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 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934 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+0x1f8/0x730 mm/slab.c:3552 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+0xf92/0x1000 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:125131 inactive_anon:197 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:7 writeback:0 unstable:0 slab_reclaimable:10983 slab_unreclaimable:1396219 mapped:49154 shmem:216 pagetables:983 bounce:0 free:13664 free_pcp:94 free_cma:0 Node 0 active_anon:500524kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:28kB writeback:0kB shmem:864kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 161792kB 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 2820 6324 6324 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890788kB 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:13684kB min:37352kB low:46688kB high:56024kB active_anon:500492kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5504kB pagetables:3932kB bounce:0kB free_pcp:376kB 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 (UM) 1*8kB (M) 5*16kB (M) 4*32kB (UM) 4*64kB (UM) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25064kB Node 0 Normal: 1283*4kB (UME) 545*8kB (UME) 150*16kB (UME) 56*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13684kB 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 241 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB kthread+0x35a/0x440 kernel/kthread.c:246 1965979 pages RAM 0 pages HighMem/MovableOnly 342286 pages reserved ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 0 pages cma reserved syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) NMI backtrace for cpu 0 syz-executor1 cpuset=syz1 mems_allowed=0 CPU: 0 PID: 5561 Comm: syz-fuzzer Not tainted 4.19.0+ #306 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 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 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 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 Code: 40 7e 0f 85 32 ff ff ff e8 75 c7 3e ff e9 28 ff ff ff e8 6c ac c3 ff 48 83 3d 24 48 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 ca 5c RSP: 0000:ffff8801dae073d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003762859b RDX: 0000000000000000 RSI: ffff8801bb142ce0 RDI: 0000000000000286 RBP: ffff8801dae07448 R08: ffff8801bb142cd8 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: ffff8801d9bcc600 R13: ffff8801d9bcc600 R14: 0000000000000000 R15: 0000000000000286 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 d5 d7 9a f9 e8 70 7a ca f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 2a 16 77 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 00 16 RSP: 0000:ffff8801d880e140 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1263f90 RBX: 0000000000000000 RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bb142c3c RBP: ffff8801d880e168 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: dffffc0000000000 R13: fffffbfff1263f8f R14: ffffffff8931fc80 R15: ffffffff8931fc78 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 70 fc 31 89 e8 a1 73 0d fa 48 83 3d 79 43 7d 01 00 0f 84 63 fe ff ff e8 be 80 ca f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 ab 80 ca f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d880e228 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801bb1423c0 RBX: 1ffffffff1263f8e RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: ffffffff87b4b902 RDI: 0000000000000293 RBP: ffff8801d880e2d0 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: 1ffff1003b101c4d R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2316/0x2dc0 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:945 page_cache_read mm/filemap.c:2400 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2584 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3e9d/0x5bd0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420035e80 EFLAGS: 00010246 RAX: ffffffffffffff92 RBX: 0000000000000000 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cdef8 RBP: 000000c420035ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420035eb8 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 CPU: 1 PID: 19281 Comm: syz-executor1 Not tainted 4.19.0+ #306 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz-fuzzer cpuset=/ mems_allowed=0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc+0x1f8/0x730 mm/slab.c:3552 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+0xf92/0x1000 Mem-Info: CPU: 0 PID: 5561 Comm: syz-fuzzer Not tainted 4.19.0+ #306 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:125131 inactive_anon:197 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:7 writeback:0 unstable:0 slab_reclaimable:10983 slab_unreclaimable:1396219 mapped:49154 shmem:216 pagetables:983 bounce:0 free:13664 free_pcp:94 free_cma:0 Call Trace: Node 0 active_anon:500524kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:28kB writeback:0kB shmem:864kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 161792kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2820 6324 6324 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890788kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13684kB min:37352kB low:46688kB high:56024kB active_anon:500492kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5504kB pagetables:3932kB bounce:0kB free_pcp:376kB 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 (UM) 1*8kB (M) 5*16kB (M) 4*32kB (UM) 4*64kB (UM) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25064kB __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 Node 0 Normal: 1283*4kB (UME) 545*8kB (UME) 150*16kB (UME) 56*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13684kB 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 241 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 342286 pages reserved 0 pages cma reserved ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset=/ mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 d5 d7 9a f9 e8 70 7a ca f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 2a 16 77 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 00 16 RSP: 0000:ffff8801d880e140 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1263f90 RBX: 0000000000000000 RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bb142c3c RBP: ffff8801d880e168 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: dffffc0000000000 R13: fffffbfff1263f8f R14: ffffffff8931fc80 R15: ffffffff8931fc78 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 70 fc 31 89 e8 a1 73 0d fa 48 83 3d 79 43 7d 01 00 0f 84 63 fe ff ff e8 be 80 ca f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 ab 80 ca f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d880e228 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801bb1423c0 RBX: 1ffffffff1263f8e RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: ffffffff87b4b902 RDI: 0000000000000293 RBP: ffff8801d880e2d0 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: 1ffff1003b101c4d R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2316/0x2dc0 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:945 page_cache_read mm/filemap.c:2400 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2584 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3e9d/0x5bd0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420035e80 EFLAGS: 00010246 RAX: ffffffffffffff92 RBX: 0000000000000000 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cdef8 RBP: 000000c420035ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420035eb8 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #306 aoe: skb alloc failure Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 syz-fuzzer cpuset=/ mems_allowed=0 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5561 Comm: syz-fuzzer Not tainted 4.19.0+ #306 Mem-Info: active_anon:125131 inactive_anon:197 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:7 writeback:0 unstable:0 slab_reclaimable:10983 slab_unreclaimable:1396219 mapped:49154 shmem:216 pagetables:983 bounce:0 free:13664 free_pcp:94 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:500524kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:28kB writeback:0kB shmem:864kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 161792kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2820 6324 6324 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890788kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 Node 0 Normal free:13684kB min:37352kB low:46688kB high:56024kB active_anon:500492kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5504kB pagetables:3932kB bounce:0kB free_pcp:376kB 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 (UM) 1*8kB (M) 5*16kB (M) 4*32kB (UM) 4*64kB (UM) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25064kB Node 0 Normal: 1283*4kB (UME) 545*8kB (UME) 150*16kB (UME) 56*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13684kB __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 241 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 342286 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset=/ mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 d5 d7 9a f9 e8 70 7a ca f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 2a 16 77 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 00 16 RSP: 0000:ffff8801d880e140 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1263f90 RBX: 0000000000000000 RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bb142c3c RBP: ffff8801d880e168 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: dffffc0000000000 R13: fffffbfff1263f8f R14: ffffffff8931fc80 R15: ffffffff8931fc78 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 70 fc 31 89 e8 a1 73 0d fa 48 83 3d 79 43 7d 01 00 0f 84 63 fe ff ff e8 be 80 ca f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 ab 80 ca f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d880e228 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801bb1423c0 RBX: 1ffffffff1263f8e RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: ffffffff87b4b902 RDI: 0000000000000293 RBP: ffff8801d880e2d0 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: 1ffff1003b101c4d R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2316/0x2dc0 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:945 page_cache_read mm/filemap.c:2400 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2584 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3e9d/0x5bd0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420035e80 EFLAGS: 00010246 RAX: ffffffffffffff92 RBX: 0000000000000000 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cdef8 RBP: 000000c420035ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420035eb8 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #306 aoe: skb alloc failure 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-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 syz-fuzzer cpuset=/ mems_allowed=0 __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 CPU: 0 PID: 5561 Comm: syz-fuzzer Not tainted 4.19.0+ #306 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:125131 inactive_anon:197 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:7 writeback:0 unstable:0 slab_reclaimable:10983 slab_unreclaimable:1396219 mapped:49154 shmem:216 pagetables:983 bounce:0 free:13664 free_pcp:94 free_cma:0 Call Trace: Node 0 active_anon:500524kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:28kB writeback:0kB shmem:864kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 161792kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 lowmem_reserve[]: 0 2820 6324 6324 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890788kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:13684kB min:37352kB low:46688kB high:56024kB active_anon:500492kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5504kB pagetables:3932kB bounce:0kB free_pcp:376kB 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 (UM) 1*8kB (M) 5*16kB (M) 4*32kB (UM) 4*64kB (UM) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25064kB __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 Node 0 Normal: 1283*4kB (UME) 545*8kB (UME) 150*16kB (UME) 56*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13684kB 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 241 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 342286 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) ksoftirqd/1 cpuset=/ mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline] aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1381 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:771 [inline] RIP: 0010:preempt_schedule_irq+0xaf/0x140 kernel/sched/core.c:3706 Code: 00 e8 d5 d7 9a f9 e8 70 7a ca f9 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 75 73 48 83 3d 2a 16 77 01 00 74 61 fb 66 0f 1f 44 00 00 01 00 00 00 e8 f7 cd ff ff 41 80 7d 00 00 75 6c 48 83 3d 00 16 RSP: 0000:ffff8801d880e140 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1263f90 RBX: 0000000000000000 RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bb142c3c RBP: ffff8801d880e168 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: dffffc0000000000 R13: fffffbfff1263f8f R14: ffffffff8931fc80 R15: ffffffff8931fc78 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:dump_stack+0x358/0x39d lib/dump_stack.c:118 Code: 74 0c 48 c7 c7 70 fc 31 89 e8 a1 73 0d fa 48 83 3d 79 43 7d 01 00 0f 84 63 fe ff ff e8 be 80 ca f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 ab 80 ca f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00 RSP: 0000:ffff8801d880e228 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: ffff8801bb1423c0 RBX: 1ffffffff1263f8e RCX: 1ffff10037628596 RDX: 0000000000000000 RSI: ffffffff87b4b902 RDI: 0000000000000293 RBP: ffff8801d880e2d0 R08: ffff8801bb142cb0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bb1423c0 R12: 1ffff1003b101c4d R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3520 [inline] __alloc_pages_slowpath+0x2316/0x2dc0 mm/page_alloc.c:4241 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2107 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:945 page_cache_read mm/filemap.c:2400 [inline] filemap_fault+0x1595/0x25f0 mm/filemap.c:2584 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291 __do_fault+0x100/0x6b0 mm/memory.c:2991 do_read_fault mm/memory.c:3403 [inline] do_fault mm/memory.c:3529 [inline] handle_pte_fault mm/memory.c:3760 [inline] __handle_mm_fault+0x3e9d/0x5bd0 mm/memory.c:3884 handle_mm_fault+0x54f/0xc70 mm/memory.c:3921 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136 RIP: 0033:0x45ddf3 Code: Bad RIP value. RSP: 002b:000000c420035e80 EFLAGS: 00010246 RAX: ffffffffffffff92 RBX: 0000000000000000 RCX: 000000000045ddf3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cdef8 RBP: 000000c420035ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c420035eb8 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 4.19.0+ #306 aoe: skb alloc failure 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-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 syz-fuzzer cpuset=/ mems_allowed=0 __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4396 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x308/0xb7e kernel/softirq.c:292 run_ksoftirqd+0x5e/0x100 kernel/softirq.c:654 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 5561 Comm: syz-fuzzer Not tainted 4.19.0+ #306 Mem-Info: active_anon:125131 inactive_anon:197 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:7 writeback:0 unstable:0 slab_reclaimable:10983 slab_unreclaimable:1396219 mapped:49154 shmem:216 pagetables:983 bounce:0 free:13664 free_pcp:94 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:500524kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:28kB writeback:0kB shmem:864kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 161792kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2820 6324 6324 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 Node 0 DMA32 free:25064kB min:30060kB low:37572kB high:45084kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890788kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3424 Node 0 Normal free:13684kB min:37352kB low:46688kB high:56024kB active_anon:500492kB inactive_anon:788kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5504kB pagetables:3932kB bounce:0kB free_pcp:376kB 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 (UM) 1*8kB (M) 5*16kB (M) 4*32kB (UM) 4*64kB (UM) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 3*4096kB (M) = 25064kB Node 0 Normal: 1283*4kB (UME) 545*8kB (UME) 150*16kB (UME) 56*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13684kB __alloc_pages_slowpath+0x26aa/0x2dc0 mm/page_alloc.c:4303 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 241 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 342286 pages reserved 0 pages cma reserved