============================= WARNING: suspicious RCU usage 4.14.174-syzkaller #0 Not tainted ----------------------------- net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage! other info that might help us debug this: Node 1 active_anon:1218396kB inactive_anon:16kB active_file:28968kB inactive_file:26268kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27512kB dirty:0kB writeback:0kB shmem:984kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no rcu_scheduler_active = 2, debug_locks = 1 2 locks held by syz-executor.3/26590: #0: (cb_lock){++++}, at: [] genl_rcv+0x15/0x40 net/netlink/genetlink.c:635 #1: (genl_mutex){+.+.}, at: [] genl_lock net/netlink/genetlink.c:33 [inline] #1: (genl_mutex){+.+.}, at: [] genl_rcv_msg+0x112/0x140 net/netlink/genetlink.c:623 syz-executor.1: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB stack backtrace: syz-executor.1 cpuset=syz1 mems_allowed=0-1 CPU: 0 PID: 26591 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4cd9ac8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4cd9ac96d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c CPU: 1 PID: 26590 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 lowmem_reserve[]: Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 tipc_bearer_find+0x1ff/0x2f0 net/tipc/bearer.c:177 tipc_nl_compat_link_set+0x41f/0xbc0 net/tipc/netlink_compat.c:797 0 __tipc_nl_compat_doit net/tipc/netlink_compat.c:306 [inline] tipc_nl_compat_doit+0x18d/0x510 net/tipc/netlink_compat.c:354 2557 tipc_nl_compat_handle net/tipc/netlink_compat.c:1205 [inline] tipc_nl_compat_recv+0x95c/0xa10 net/tipc/netlink_compat.c:1287 2557 genl_family_rcv_msg+0x57c/0xb30 net/netlink/genetlink.c:600 2557 genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625 netlink_rcv_skb+0x127/0x370 net/netlink/af_netlink.c:2433 genl_rcv+0x24/0x40 net/netlink/genetlink.c:636 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x620 net/netlink/af_netlink.c:1313 2557 netlink_sendmsg+0x733/0xbe0 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xc5/0x100 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 Node 0 DMA32 free:32344kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:36kB inactive_file:0kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:996kB local_pcp:680kB free_cma:0kB __sys_sendmsg+0xa3/0x120 net/socket.c:2096 lowmem_reserve[]: SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f49a5ecac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f49a5ecb6d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004 0 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009cd R14: 00000000004cc7d7 R15: 000000000076bf0c 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2143380kB min:53612kB low:67012kB high:80412kB active_anon:1218328kB inactive_anon:16kB active_file:28968kB inactive_file:26292kB unevictable:0kB writepending:192kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:12800kB pagetables:29104kB bounce:0kB free_pcp:996kB local_pcp:568kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (M) 2*8kB (H) 3*16kB (H) 2*32kB (UH) 3*64kB (UMH) 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Node 0 DMA32: 520*4kB (UMEH) 1289*8kB (UME) 775*16kB (UEH) 225*32kB (UEH) 5*64kB (UEH) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 32312kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 1 Normal: 141*4kB (UME) 89*8kB (UME) 193*16kB (UME) 247*32kB (UME) 107*64kB (UME) 39*128kB (M) 31*256kB (UME) 17*512kB (UM) 11*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2143020kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:797322 inactive_anon:200 isolated_anon:0 active_file:7250 inactive_file:6574 isolated_file:0 unevictable:0 dirty:49 writeback:0 unstable:0 slab_reclaimable:12649 slab_unreclaimable:132580 mapped:59086 shmem:547 pagetables:16455 bounce:0 free:546374 free_pcp:570 free_cma:0 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 14374 total pagecache pages 0 pages in swap cache Node 0 active_anon:1971060kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:4kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 339049 pages reserved 0 pages cma reserved Node 1 active_anon:1218328kB inactive_anon:16kB active_file:28968kB inactive_file:26292kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27612kB dirty:192kB writeback:0kB shmem:984kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB syz-executor.4: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.0: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) lowmem_reserve[]: 0 2557 2557 2557 2557 syz-executor.4 cpuset=syz4 mems_allowed=0-1 Node 0 DMA32 free:32312kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:1044kB local_pcp:700kB free_cma:0kB CPU: 0 PID: 26636 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 syz-executor.0 cpuset= vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 syz0 mems_allowed=0-1 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4840a4fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4840a506d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c CPU: 1 PID: 26632 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 lowmem_reserve[]: __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 0 0 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 0 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 0 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 0 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 lowmem_reserve[]: 0 0 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 0 RIP: 0033:0x45c849 RSP: 002b:00007f75f727ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f75f727f6d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c 0 0 Node 1 Normal free:2140952kB min:53612kB low:67012kB high:80412kB active_anon:1218348kB inactive_anon:12kB active_file:28968kB inactive_file:26292kB unevictable:0kB writepending:220kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:12832kB pagetables:29072kB bounce:0kB free_pcp:848kB local_pcp:348kB free_cma:0kB syz-executor.0: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.0 cpuset=syz0 mems_allowed=0-1 lowmem_reserve[]: 0 0 0 0 0 CPU: 1 PID: 26654 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Node 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 DMA: __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 Mem-Info: __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 1*4kB active_anon:797352 inactive_anon:199 isolated_anon:0 active_file:7250 inactive_file:6574 isolated_file:0 unevictable:0 dirty:31 writeback:0 unstable:0 slab_reclaimable:12649 slab_unreclaimable:132763 mapped:59130 shmem:548 pagetables:16484 bounce:0 free:546045 free_pcp:496 free_cma:0 (M) alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 2*8kB kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 Node 0 active_anon:1971060kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:4kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 Node 1 active_anon:1218348kB inactive_anon:12kB active_file:28968kB inactive_file:26292kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27588kB dirty:120kB writeback:0kB shmem:988kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no (H) kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 3*16kB (H) vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 2*32kB SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 Node 0 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f75f723cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f75f723d6d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076c04c (UH) 3*64kB (UMH) 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Node 0 DMA32: 642*4kB (UMEH) 1296*8kB (UMEH) 775*16kB (UEH) 225*32kB (UEH) 5*64kB (UEH) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 32856kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 1 Normal: 56*4kB (UM) 194*8kB (UME) 77*16kB (ME) 151*32kB (UME) 107*64kB (UME) 45*128kB (UM) 30*256kB (UME) 16*512kB (UM) 11*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2138592kB 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 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 14389 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 339049 pages reserved 0 pages cma reserved DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2557 2557 2557 2557 Node 0 DMA32 free:32956kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:1356kB local_pcp:660kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2141576kB min:53612kB low:67012kB high:80412kB active_anon:1218188kB inactive_anon:16kB active_file:28972kB inactive_file:26360kB unevictable:0kB writepending:184kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:12672kB pagetables:28960kB bounce:0kB free_pcp:1348kB local_pcp:668kB free_cma:0kB active_anon:797312 inactive_anon:200 isolated_anon:0 active_file:7251 inactive_file:6591 isolated_file:0 unevictable:0 dirty:35 writeback:0 unstable:0 slab_reclaimable:12672 slab_unreclaimable:132562 mapped:59114 shmem:548 pagetables:16456 bounce:0 free:546190 free_pcp:686 free_cma:0 lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (M) 2*8kB (H) 3*16kB (H) 2*32kB (UH) 3*64kB (UMH) 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Node 0 active_anon:1971060kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:4kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 Node 1 active_anon:1218188kB inactive_anon:16kB active_file:28972kB inactive_file:26360kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27524kB dirty:136kB writeback:0kB shmem:988kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no DMA32: Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2557 2557 2557 2557 669*4kB Node 0 DMA32 free:32956kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:1424kB local_pcp:720kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 (UMEH) 1304*8kB (UMEH) 775*16kB (UEH) 225*32kB (UEH) 5*64kB (UEH) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 33028kB Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2141096kB min:53612kB low:67012kB high:80412kB active_anon:1218188kB inactive_anon:16kB active_file:28972kB inactive_file:26360kB unevictable:0kB writepending:184kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:12704kB pagetables:28960kB bounce:0kB free_pcp:1156kB local_pcp:704kB free_cma:0kB Node 1 lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (M) 2*8kB (H) 3*16kB (H) 2*32kB (UH) 3*64kB (UMH) 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Normal: 165*4kB (UME) 368*8kB (UME) 171*16kB (UME) 150*32kB (UME) 107*64kB (UME) 48*128kB (UM) 30*256kB (UME) 16*512kB (UM) 11*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2142276kB Node 0 DMA32: 669*4kB (UMEH) 1304*8kB (UMEH) 775*16kB (UEH) 225*32kB (UEH) 5*64kB (UEH) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 33028kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 Normal: 165*4kB (UME) 175*8kB (UME) 189*16kB (UME) 153*32kB (UME) 107*64kB (UME) 48*128kB (UM) 30*256kB (UME) 16*512kB (UM) 11*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2141116kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 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 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 14389 total pagecache pages 0 pages in swap cache 14389 total pagecache pages Swap cache stats: add 0, delete 0, find 0/0 0 pages in swap cache Free swap = 0kB Swap cache stats: add 0, delete 0, find 0/0 Total swap = 0kB 1965979 pages RAM Free swap = 0kB 0 pages HighMem/MovableOnly Total swap = 0kB 339049 pages reserved 0 pages cma reserved 1965979 pages RAM 0 pages HighMem/MovableOnly 339049 pages reserved 0 pages cma reserved syz-executor.0: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.1: syz-executor.0 cpuset= page allocation failure: order:0 syz0 , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) mems_allowed=0-1 CPU: 0 PID: 26720 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 syz-executor.4: __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 page allocation failure: order:0 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 syz-executor.4 cpuset= vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 syz4 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 mems_allowed=0-1 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f75f727ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f75f727f6d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000005 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c CPU: 1 PID: 26734 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 syz-executor.1 cpuset= __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 syz1 mems_allowed=0-1 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4840a4fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4840a506d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c CPU: 0 PID: 26723 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4cd9ac8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4cd9ac96d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c syz-executor.1: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.1 cpuset=syz1 mems_allowed=0-1 CPU: 0 PID: 26731 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4cd9aa7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4cd9aa86d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bfac Mem-Info: active_anon:797365 inactive_anon:199 isolated_anon:0 active_file:7251 inactive_file:6607 isolated_file:0 unevictable:0 dirty:62 writeback:0 unstable:0 slab_reclaimable:12672 slab_unreclaimable:131939 mapped:59095 shmem:548 pagetables:16502 bounce:0 free:547024 free_pcp:342 free_cma:0 Node 0 active_anon:1971060kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:4kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:1218400kB inactive_anon:12kB active_file:28972kB inactive_file:26424kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27448kB dirty:244kB writeback:0kB shmem:988kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2557 2557 2557 2557 Node 0 DMA32 free:34240kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:28kB inactive_file:8kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:80kB local_pcp:36kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2142764kB min:53612kB low:67012kB high:80412kB active_anon:1218184kB inactive_anon:20kB active_file:28972kB inactive_file:26428kB unevictable:0kB writepending:264kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:12768kB pagetables:29060kB bounce:0kB free_pcp:976kB local_pcp:452kB free_cma:0kB syz-executor.1: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.1 cpuset=syz1 mems_allowed=0-1 lowmem_reserve[]: 0 0 0 0 0 CPU: 0 PID: 26798 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Node 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 DMA: __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 1*4kB (M) __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 2*8kB alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 (H) 3*16kB kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 (H) 2*32kB vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 (UH) 3*64kB SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4cd9ac8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4cd9ac96d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c (UMH) 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Node 0 DMA32: 794*4kB (UMEH) 1347*8kB (UMEH) 781*16kB (UEH) 228*32kB (UEH) 5*64kB (UE) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 34064kB warn_alloc_show_mem: 3 callbacks suppressed Mem-Info: active_anon:797297 inactive_anon:201 isolated_anon:0 active_file:7250 inactive_file:6623 isolated_file:0 unevictable:0 dirty:12 writeback:0 unstable:0 slab_reclaimable:12619 slab_unreclaimable:132307 mapped:59110 shmem:549 pagetables:16451 bounce:0 free:546880 free_pcp:278 free_cma:0 Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 1 Normal: 163*4kB (UME) 219*8kB (UME) 189*16kB (UME) 163*32kB (UME) 106*64kB (UME) 51*128kB (UM) 33*256kB (UME) 15*512kB (UM) 12*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2143380kB Node 0 active_anon:1971060kB inactive_anon:784kB active_file:28kB inactive_file:8kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:0kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no 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 Node 1 active_anon:1218228kB inactive_anon:20kB active_file:28972kB inactive_file:26484kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27608kB dirty:48kB writeback:0kB shmem:992kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB lowmem_reserve[]: 0 2557 2557 2557 2557 Node 0 DMA32 free:34064kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:28kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:100kB local_pcp:88kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 14421 total pagecache pages 0 pages in swap cache Node 0 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 339049 pages reserved 0 pages cma reserved Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 syz-executor.4: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) Node 1 Normal free:2140668kB min:53612kB low:67012kB high:80412kB active_anon:1219596kB inactive_anon:12kB active_file:28976kB inactive_file:26652kB unevictable:0kB writepending:376kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:13056kB pagetables:29400kB bounce:0kB free_pcp:668kB local_pcp:364kB free_cma:0kB syz-executor.0: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) syz-executor.4 cpuset=syz4 mems_allowed=0-1 syz-executor.0 cpuset=syz0 mems_allowed=0-1 CPU: 0 PID: 26829 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f75f727ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f75f727f6d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c CPU: 1 PID: 26836 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 lowmem_reserve[]: warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 0 __alloc_pages_slowpath+0x2114/0x26c0 mm/page_alloc.c:4095 0 0 __alloc_pages_nodemask+0x5d3/0x700 mm/page_alloc.c:4198 0 0 Node 0 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xd1/0x1c0 arch/x86/kvm/mmu.c:5160 DMA: kvm_arch_vcpu_init+0x28b/0x8b0 arch/x86/kvm/x86.c:8306 kvm_vcpu_init+0x26d/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 1*4kB vmx_create_vcpu+0xf3/0x2900 arch/x86/kvm/vmx.c:10072 (M) kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x49c/0x1430 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 2*8kB (H) 3*16kB (H) vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 2*32kB (UH) SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 3*64kB entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f4840a4fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 (UMH) RAX: ffffffffffffffda RBX: 00007f4840a506d4 RCX: 000000000045c849 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000038e R14: 00000000004c6041 R15: 000000000076bf0c 3*128kB (UMH) 2*256kB (UH) 2*512kB (MH) 0*1024kB 0*2048kB 2*4096kB (M) = 10436kB Node 0 DMA32: 732*4kB (UMEH) 1338*8kB (UMEH) 781*16kB (UEH) 228*32kB (UEH) 5*64kB (UE) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 33744kB Mem-Info: Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB active_anon:797614 inactive_anon:199 isolated_anon:0 active_file:7252 inactive_file:6664 isolated_file:0 unevictable:0 dirty:95 writeback:0 unstable:0 slab_reclaimable:12635 slab_unreclaimable:132464 mapped:59155 shmem:549 pagetables:16492 bounce:0 free:546248 free_pcp:330 free_cma:0 Node 1 Normal: 142*4kB (UME) 294*8kB (UME) 93*16kB (UME) 146*32kB (UME) 106*64kB (UME) 51*128kB (UM) 33*256kB (UME) 15*512kB (UM) 12*1024kB (UME) 9*2048kB (UME) 506*4096kB (UM) = 2141816kB Node 0 active_anon:1971060kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208932kB dirty:4kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1087488kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 active_anon:1219324kB inactive_anon:16kB active_file:28976kB inactive_file:26684kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:27652kB dirty:424kB writeback:0kB shmem:992kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 0 DMA free:10436kB min:220kB low:272kB high:324kB active_anon:5436kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB lowmem_reserve[]: 0 2557 2557 2557 2557 Node 0 DMA32 free:33124kB min:36272kB low:45340kB high:54408kB active_anon:1965624kB inactive_anon:784kB active_file:32kB inactive_file:4kB unevictable:0kB writepending:4kB present:3129332kB managed:2621272kB mlocked:0kB kernel_stack:13120kB pagetables:36860kB bounce:0kB free_pcp:268kB local_pcp:108kB free_cma:0kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:348kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 14472 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 lowmem_reserve[]: 0 0 0 0 0 339049 pages reserved