====================================================== sctp: [Deprecated]: syz-executor3 (pid 5919) Use of int in maxseg socket option. Use struct sctp_assoc_value instead WARNING: possible circular locking dependency detected 4.15.0+ #220 Not tainted sctp: [Deprecated]: syz-executor3 (pid 5925) Use of int in maxseg socket option. Use struct sctp_assoc_value instead ------------------------------------------------------ syz-executor1/5912 is trying to acquire lock: (&xt[i].mutex){+.+.}, at: [<00000000549d84c1>] xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 but task is already holding lock: (sk_lock-AF_INET6){+.+.}, at: [<0000000095d9f242>] lock_sock include/net/sock.h:1461 [inline] (sk_lock-AF_INET6){+.+.}, at: [<0000000095d9f242>] ipv6_setsockopt+0xff/0x150 net/ipv6/ipv6_sockglue.c:927 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (sk_lock-AF_INET6){+.+.}: lock_sock_nested+0xc2/0x110 net/core/sock.c:2780 lock_sock include/net/sock.h:1461 [inline] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 -> #1 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1673 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654 __do_replace+0x79d/0xa50 net/ipv4/netfilter/ip_tables.c:1089 do_replace net/ipv4/netfilter/ip_tables.c:1145 [inline] do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1675 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1260 sctp_setsockopt+0x2b6/0x61d0 net/sctp/socket.c:4104 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 -> #0 (&xt[i].mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 xt_request_find_target+0x2c/0xb0 net/netfilter/x_tables.c:255 find_check_entry.isra.7+0x669/0xcf0 net/ipv6/netfilter/ip6_tables.c:567 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:744 do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1686 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 other info that might help us debug this: Chain exists of: &xt[i].mutex --> rtnl_mutex --> sk_lock-AF_INET6 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sk_lock-AF_INET6); lock(rtnl_mutex); lock(sk_lock-AF_INET6); lock(&xt[i].mutex); *** DEADLOCK *** 1 lock held by syz-executor1/5912: #0: (sk_lock-AF_INET6){+.+.}, at: [<0000000095d9f242>] lock_sock include/net/sock.h:1461 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<0000000095d9f242>] ipv6_setsockopt+0xff/0x150 net/ipv6/ipv6_sockglue.c:927 stack backtrace: CPU: 1 PID: 5912 Comm: syz-executor1 Not tainted 4.15.0+ #220 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+0x194/0x257 lib/dump_stack.c:53 print_circular_bug.isra.38+0x2cd/0x2dc kernel/locking/lockdep.c:1223 check_prev_add kernel/locking/lockdep.c:1863 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2417 [inline] __lock_acquire+0x30a8/0x3e00 kernel/locking/lockdep.c:3431 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 xt_request_find_target+0x2c/0xb0 net/netfilter/x_tables.c:255 find_check_entry.isra.7+0x669/0xcf0 net/ipv6/netfilter/ip6_tables.c:567 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:744 do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1686 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fc35bd76c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000453299 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 00000000000005ca R08: 00000000000004e8 R09: 0000000000000000 R10: 000000002000f000 R11: 0000000000000212 R12: 00000000006f7b90 R13: 00000000ffffffff R14: 00007fc35bd776d4 R15: 0000000000000000 xt_SECMARK: target only valid in the 'mangle' or 'security' tables, not 'raw'. xt_SECMARK: target only valid in the 'mangle' or 'security' tables, not 'raw'. Cannot find add_set index 3222 as target Cannot find add_set index 3222 as target netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 'syz-executor2': attribute type 18 has an invalid length. netlink: 'syz-executor2': attribute type 18 has an invalid length. xt_CT: No such helper "pptp" xt_CT: No such helper "pptp" TCP: request_sock_TCPv6: Possible SYN flooding on port 20006. Sending cookies. Check SNMP counters. kauditd_printk_skb: 11 callbacks suppressed audit: type=1400 audit(1517551763.955:33): avc: denied { name_bind } for pid=6495 comm="syz-executor6" src=20024 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1517551763.955:34): avc: denied { node_bind } for pid=6495 comm="syz-executor6" src=20024 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1517551764.009:35): avc: denied { name_connect } for pid=6495 comm="syz-executor6" dest=20024 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1517551764.032:36): avc: denied { connect } for pid=6511 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 dccp_close: ABORT with 214 bytes unread netlink: 'syz-executor2': attribute type 1 has an invalid length. netlink: 'syz-executor2': attribute type 1 has an invalid length. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'. xt_hashlimit: hashlimit invalid rate xt_hashlimit: hashlimit invalid rate sctp: [Deprecated]: syz-executor2 (pid 6832) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor2 (pid 6844) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead syz-executor6 (6881) used greatest stack depth: 15552 bytes left TCP: request_sock_TCP: Possible SYN flooding on port 20026. Sending cookies. Check SNMP counters. Cannot find add_set index 0 as target Cannot find add_set index 0 as target Cannot find add_set index 2 as target Dead loop on virtual device ip6_vti0, fix it urgently! audit: type=1400 audit(1517551765.782:37): avc: denied { map } for pid=7171 comm="syz-executor7" path="socket:[16936]" dev="sockfs" ino=16936 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_route_socket permissive=1 Dead loop on virtual device ip6_vti0, fix it urgently! xt_l2tp: v2 tid > 0xffff: 4294967295 audit: type=1400 audit(1517551766.099:38): avc: denied { setopt } for pid=7308 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1 atomic_op 000000001cf7a4fa conn xmit_atomic (null) rdma_op 00000000574d8346 conn xmit_rdma (null) audit: type=1400 audit(1517551766.390:39): avc: denied { getopt } for pid=7424 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. audit: type=1400 audit(1517551766.608:40): avc: denied { accept } for pid=7508 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. syz1: Invalid MTU 7 requested, hw min 68 audit: type=1400 audit(1517551766.791:41): avc: denied { map } for pid=7582 comm="syz-executor3" path="socket:[17232]" dev="sockfs" ino=17232 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=socket permissive=1 netlink: 'syz-executor1': attribute type 21 has an invalid length. netlink: 'syz-executor1': attribute type 2 has an invalid length. netlink: 'syz-executor1': attribute type 21 has an invalid length. netlink: 'syz-executor1': attribute type 2 has an invalid length. netlink: 'syz-executor2': attribute type 16 has an invalid length. netlink: 'syz-executor2': attribute type 16 has an invalid length. audit: type=1400 audit(1517551767.887:42): avc: denied { read } for pid=7969 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 xt_socket: unknown flags 0xec IPv4: Oversized IP packet from 127.0.0.1 xt_socket: unknown flags 0xec TCP: request_sock_TCP: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. PF_BRIDGE: br_mdb_parse() with unknown ifindex syz-executor5 (8283) used greatest stack depth: 12704 bytes left netlink: 11 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor4'. Cannot find add_set index 8 as target ieee80211 phy2: Selected rate control algorithm 'minstrel_ht' kauditd_printk_skb: 2 callbacks suppressed audit: type=1400 audit(1517551769.055:45): avc: denied { ioctl } for pid=8414 comm="syz-executor7" path="socket:[18923]" dev="sockfs" ino=18923 ioctlcmd=0x89e2 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=sock_file permissive=1 ieee80211 phy3: Selected rate control algorithm 'minstrel_ht' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=53 sclass=netlink_route_socket pig=8437 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=53 sclass=netlink_route_socket pig=8443 comm=syz-executor5 ieee80211 phy4: Selected rate control algorithm 'minstrel_ht' ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' SNAT: multiple ranges no longer supported ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' ieee80211 phy7: Selected rate control algorithm 'minstrel_ht' audit: type=1400 audit(1517551769.516:46): avc: denied { read } for pid=8589 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 audit: type=1400 audit(1517551769.597:47): avc: denied { bind } for pid=8603 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink: 'syz-executor1': attribute type 21 has an invalid length. netlink: 'syz-executor1': attribute type 4 has an invalid length. ieee80211 phy8: Selected rate control algorithm 'minstrel_ht' netlink: 'syz-executor1': attribute type 21 has an invalid length. netlink: 'syz-executor1': attribute type 4 has an invalid length. ieee80211 phy9: Selected rate control algorithm 'minstrel_ht' ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' sctp: [Deprecated]: syz-executor0 (pid 8764) Use of int in max_burst socket option. Use struct sctp_assoc_value instead netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' sctp: [Deprecated]: syz-executor0 (pid 8745) Use of int in max_burst socket option. Use struct sctp_assoc_value instead ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' ieee80211 phy16: Selected rate control algorithm 'minstrel_ht' ieee80211 phy17: Selected rate control algorithm 'minstrel_ht' ieee80211 phy18: Selected rate control algorithm 'minstrel_ht' xt_cgroup: invalid path, errno=-2 ieee80211 phy19: Selected rate control algorithm 'minstrel_ht' audit: type=1400 audit(1517551770.629:48): avc: denied { bind } for pid=8972 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 skbuff: bad partial csum: csum=65535/65535 len=14 ieee80211 phy20: Selected rate control algorithm 'minstrel_ht' sock: sock_set_timeout: `syz-executor5' (pid 9001) tries to set negative timeout sock: sock_set_timeout: `syz-executor5' (pid 9001) tries to set negative timeout skbuff: bad partial csum: csum=65535/65535 len=14 ieee80211 phy21: Selected rate control algorithm 'minstrel_ht' ieee80211 phy22: Selected rate control algorithm 'minstrel_ht' ieee80211 phy23: Selected rate control algorithm 'minstrel_ht' ieee80211 phy24: Selected rate control algorithm 'minstrel_ht' ieee80211 phy25: Selected rate control algorithm 'minstrel_ht' ieee80211 phy26: Selected rate control algorithm 'minstrel_ht' ieee80211 phy27: Selected rate control algorithm 'minstrel_ht' ieee80211 phy28: Selected rate control algorithm 'minstrel_ht' device syz0 entered promiscuous mode ieee80211 phy29: Selected rate control algorithm 'minstrel_ht' netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. syz-executor1: vmalloc: allocation failure: 17178820608 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor1 cpuset=/ mems_allowed=0 CPU: 0 PID: 9185 Comm: syz-executor1 Not tainted 4.15.0+ #220 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+0x194/0x257 lib/dump_stack.c:53 warn_alloc+0x19a/0x2b0 mm/page_alloc.c:3306 __vmalloc_node_range+0x4f0/0x650 mm/vmalloc.c:1775 __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1826 kvmalloc_node+0x82/0xd0 mm/util.c:428 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1690 net/ipv6/netfilter/ip6_tables.c:699 do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1686 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fc35bd76c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000453299 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000015 RBP: 00000000000004d0 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020001fde R11: 0000000000000212 R12: 00000000006f6420 R13: 00000000ffffffff R14: 00007fc35bd776d4 R15: 0000000000000000 Mem-Info: active_anon:59524 inactive_anon:63 isolated_anon:0 active_file:3480 inactive_file:8395 isolated_file:0 unevictable:0 dirty:260 writeback:0 unstable:0 slab_reclaimable:8411 slab_unreclaimable:86403 mapped:24122 shmem:70 pagetables:722 bounce:0 free:1434423 free_pcp:499 free_cma:0 Node 0 active_anon:238096kB inactive_anon:252kB active_file:13920kB inactive_file:33580kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:96488kB dirty:1040kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 71680kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2868 6378 6378 Node 0 DMA32 free:2939264kB min:30316kB low:37892kB high:45468kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2939968kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:704kB local_pcp:44kB free_cma:0kB lowmem_reserve[]: 0 0 3510 3510 Node 0 Normal free:2782520kB min:37100kB low:46372kB high:55644kB active_anon:238096kB inactive_anon:252kB active_file:13920kB inactive_file:33580kB unevictable:0kB writepending:1040kB present:4718592kB managed:3594332kB mlocked:0kB kernel_stack:4320kB pagetables:2888kB bounce:0kB free_pcp:1292kB local_pcp:608kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 2*4kB (M) 1*8kB (M) 3*16kB (M) 2*32kB (M) 0*64kB 2*128kB (M) 2*256kB (M) 3*512kB (M) 2*1024kB (M) 1*2048kB (M) 716*4096kB (M) = 2939264kB Node 0 Normal: 32*4kB (UM) 3*8kB (UME) 2*16kB (UE) 6*32kB (UE) 107*64kB (UME) 74*128kB (UM) 24*256kB (UME) 30*512kB (UME) 68*1024kB (UM) 8*2048kB (UME) 649*4096kB (UM) = 2782520kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11944 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 328417 pages reserved syz-executor1: vmalloc: allocation failure: 17178820608 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor1 cpuset=/ mems_allowed=0 CPU: 0 PID: 9187 Comm: syz-executor1 Not tainted 4.15.0+ #220 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+0x194/0x257 lib/dump_stack.c:53 warn_alloc+0x19a/0x2b0 mm/page_alloc.c:3306 __vmalloc_node_range+0x4f0/0x650 mm/vmalloc.c:1775 __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1826 kvmalloc_node+0x82/0xd0 mm/util.c:428 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774