ip_tables: iptables: counters copy to user failed while replacing table
======================================================
WARNING: possible circular locking dependency detected
4.14.171-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.2/19209 is trying to acquire lock:
 (rtnl_mutex){+.+.}, at: [<ffffffff85214c07>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72

but task is already holding lock:
 (&xt[i].mutex){+.+.}, at: [<ffffffff854c922c>] xt_find_table_lock+0x3c/0x3d0 net/netfilter/x_tables.c:1092

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&xt[i].mutex){+.+.}:
       lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
       xt_find_target+0x3e/0x1e0 net/netfilter/x_tables.c:232
       xt_request_find_target net/netfilter/x_tables.c:261 [inline]
       xt_request_find_target+0x74/0xe0 net/netfilter/x_tables.c:254
       ipt_init_target+0xce/0x290 net/sched/act_ipt.c:45
       __tcf_ipt_init+0x48c/0xb50 net/sched/act_ipt.c:168
       tcf_xt_init+0x4e/0x60 net/sched/act_ipt.c:210
       tcf_action_init_1+0x53c/0xaa0 net/sched/act_api.c:682
       tcf_action_init+0x2ab/0x480 net/sched/act_api.c:751
       tcf_action_add net/sched/act_api.c:1079 [inline]
       tc_ctl_action+0x30a/0x548 net/sched/act_api.c:1131
       rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4315
       netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
       rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4327
       netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
       netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312
       netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
       sock_sendmsg_nosec net/socket.c:646 [inline]
       sock_sendmsg+0xce/0x110 net/socket.c:656
       kernel_sendmsg+0x44/0x50 net/socket.c:664
       sock_no_sendpage+0x107/0x130 net/core/sock.c:2569
       kernel_sendpage+0x92/0xf0 net/socket.c:3407
       sock_sendpage+0x8b/0xc0 net/socket.c:871
       pipe_to_sendpage+0x242/0x340 fs/splice.c:451
       splice_from_pipe_feed fs/splice.c:502 [inline]
       __splice_from_pipe+0x348/0x780 fs/splice.c:626
       splice_from_pipe+0xf0/0x150 fs/splice.c:661
       generic_splice_sendpage+0x3c/0x50 fs/splice.c:832
       do_splice_from fs/splice.c:851 [inline]
       do_splice fs/splice.c:1147 [inline]
       SYSC_splice fs/splice.c:1402 [inline]
       SyS_splice+0xd92/0x1430 fs/splice.c:1382
       do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #0 (rtnl_mutex){+.+.}:
       check_prev_add kernel/locking/lockdep.c:1901 [inline]
       check_prevs_add kernel/locking/lockdep.c:2018 [inline]
       validate_chain kernel/locking/lockdep.c:2460 [inline]
       __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487
       lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
       rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
       unregister_netdevice_notifier+0x5f/0x2c0 net/core/dev.c:1634
       tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123
       cleanup_entry+0x17d/0x230 net/ipv4/netfilter/ip_tables.c:666
       __do_replace+0x3c5/0x5b0 net/ipv4/netfilter/ip_tables.c:1086
       do_replace net/ipv4/netfilter/ip_tables.c:1142 [inline]
       do_ipt_set_ctl+0x296/0x3ee net/ipv4/netfilter/ip_tables.c:1674
       nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
       nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
       ip_setsockopt net/ipv4/ip_sockglue.c:1255 [inline]
       ip_setsockopt+0x9b/0xb0 net/ipv4/ip_sockglue.c:1240
       udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2451
       sock_common_setsockopt+0x94/0xd0 net/core/sock.c:2968
       SYSC_setsockopt net/socket.c:1865 [inline]
       SyS_setsockopt+0x13c/0x210 net/socket.c:1844
       do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&xt[i].mutex);
                               lock(rtnl_mutex);
                               lock(&xt[i].mutex);
  lock(rtnl_mutex);

 *** DEADLOCK ***

1 lock held by syz-executor.2/19209:
 #0:  (&xt[i].mutex){+.+.}, at: [<ffffffff854c922c>] xt_find_table_lock+0x3c/0x3d0 net/netfilter/x_tables.c:1092

stack backtrace:
CPU: 1 PID: 19209 Comm: syz-executor.2 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258
 check_prev_add kernel/locking/lockdep.c:1901 [inline]
 check_prevs_add kernel/locking/lockdep.c:2018 [inline]
 validate_chain kernel/locking/lockdep.c:2460 [inline]
 __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487
 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
 __mutex_lock_common kernel/locking/mutex.c:756 [inline]
 __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 unregister_netdevice_notifier+0x5f/0x2c0 net/core/dev.c:1634
 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123
 cleanup_entry+0x17d/0x230 net/ipv4/netfilter/ip_tables.c:666
 __do_replace+0x3c5/0x5b0 net/ipv4/netfilter/ip_tables.c:1086
 do_replace net/ipv4/netfilter/ip_tables.c:1142 [inline]
 do_ipt_set_ctl+0x296/0x3ee net/ipv4/netfilter/ip_tables.c:1674
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
 ip_setsockopt net/ipv4/ip_sockglue.c:1255 [inline]
 ip_setsockopt+0x9b/0xb0 net/ipv4/ip_sockglue.c:1240
 udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2451
 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:2968
 SYSC_setsockopt net/socket.c:1865 [inline]
 SyS_setsockopt+0x13c/0x210 net/socket.c:1844
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007ff1b5c11c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007ff1b5c126d4 RCX: 000000000045c429
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000076bf20 R08: 0000000000000408 R09: 0000000000000000
R10: 0000000020000700 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a34 R14: 00000000004cc994 R15: 000000000076bf2c
ip_tables: iptables: counters copy to user failed while replacing table
ip_tables: iptables: counters copy to user failed while replacing table
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19223 Comm: syz-executor.3 Not tainted 4.14.171-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000013
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
CPU: 0 PID: 19251 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000014
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19300 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000015
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
CPU: 0 PID: 19311 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
selinux_nlmsg_perm: 387 callbacks suppressed
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000016
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19322 comm=syz-executor.0
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19351 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000017
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19391 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000018
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19404 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000019
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19452 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001a
nla_parse: 16 callbacks suppressed
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 19491 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001b
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19535 Comm: syz-executor.3 Not tainted 4.14.171-syzkaller #0
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001c
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'.
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19551 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
device syz_tun left promiscuous mode
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
bridge8: port 1(syz_tun) entered disabled state
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001d
bridge9: port 1(syz_tun) entered blocking state
bridge9: port 1(syz_tun) entered disabled state
device syz_tun entered promiscuous mode
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
selinux_nlmsg_perm: 861 callbacks suppressed
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19579 comm=syz-executor.4
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19579 comm=syz-executor.4
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19579 comm=syz-executor.4
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19565 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=19579 comm=syz-executor.4
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19591 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001e
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19616 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 000000000000001f
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 19642 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c429
RSP: 002b:00007f05ec01cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f05ec01d6d4 RCX: 000000000045c429
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000008
R13: 00000000000008d1 R14: 00000000004cb324 R15: 0000000000000020
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 19682 Comm: syz-executor.3 Not tainted 4.14.171-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+0x142/0x197 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 __page_cache_alloc+0x248/0x3e0 mm/filemap.c:856
 __do_page_cache_readahead+0x2d9/0xa20 mm/readahead.c:183
 ra_submit mm/internal.h:66 [inline]
 ondemand_readahead+0x50a/0xb40 mm/readahead.c:486
 page_cache_sync_readahead mm/readahead.c:518 [inline]
 page_cache_sync_readahead+0xab/0x100 mm/readahead.c:503
 generic_file_buffered_read mm/filemap.c:2003 [inline]
 generic_file_read_iter+0x128a/0x28d0 mm/filemap.c:2273
 ext4_file_read_iter+0x14e/0x340 fs/ext4/file.c:75
 call_read_iter include/linux/fs.h:1771 [inline]
 generic_file_splice_read+0x37d/0x600 fs/splice.c:307
 do_splice_to+0x105/0x170 fs/splice.c:880
 splice_direct_to_actor+0x222/0x7b0 fs/splice.c:952
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1488