FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 ============================= CPU: 0 PID: 17600 Comm: syz-executor.2 Not tainted 4.14.184-syzkaller #0 WARNING: suspicious RCU usage 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+0x1b2/0x283 lib/dump_stack.c:58 4.14.184-syzkaller #0 Not tainted fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 ----------------------------- alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage! alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 other info that might help us debug this: kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 rcu_scheduler_active = 2, debug_locks = 1 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 2 locks held by syz-executor.1/17615: 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+0x46/0xbb #0: RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 (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 stack backtrace: CPU: 1 PID: 17615 Comm: syz-executor.1 Not tainted 4.14.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 tipc_bearer_find+0x1ff/0x2f0 net/tipc/bearer.c:177 tipc_nl_compat_link_set+0x40b/0xb80 net/tipc/netlink_compat.c:797 __tipc_nl_compat_doit net/tipc/netlink_compat.c:306 [inline] tipc_nl_compat_doit+0x18d/0x510 net/tipc/netlink_compat.c:354 tipc_nl_compat_handle net/tipc/netlink_compat.c:1205 [inline] tipc_nl_compat_recv+0x95c/0xa10 net/tipc/netlink_compat.c:1287 genl_family_rcv_msg+0x57c/0xb30 net/netlink/genetlink.c:600 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+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x64a/0xbb0 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fa137ccbc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000501a60 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a10 R14: 00000000004ccf0a R15: 00007fa137ccc6d4 CPU: 0 PID: 17655 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 17709 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 17778 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 17841 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 17925 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 18009 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 18079 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4 audit: type=1800 audit(1593736375.364:16): pid=18147 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name=8001 dev="sda1" ino=16862 res=0 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 18175 Comm: syz-executor.2 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2892 [inline] prepare_alloc_pages mm/page_alloc.c:4125 [inline] __alloc_pages_nodemask+0x22b/0x2730 mm/page_alloc.c:4173 alloc_pages_current+0xe7/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xb/0x40 mm/page_alloc.c:4227 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:974 [inline] mmu_topup_memory_caches+0x187/0x300 arch/x86/kvm/mmu.c:996 kvm_mmu_load+0x1e/0xc90 arch/x86/kvm/mmu.c:4780 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7182 [inline] vcpu_run arch/x86/kvm/x86.c:7379 [inline] kvm_arch_vcpu_ioctl_run+0x371f/0x58f0 arch/x86/kvm/x86.c:7546 kvm_vcpu_ioctl+0x3df/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2661 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+0x46/0xbb RIP: 0033:0x45cb29 RSP: 002b:00007fd83c174c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004e8ae0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000003d2 R14: 00000000004c68e0 R15: 00007fd83c1756d4