================================ WARNING: inconsistent lock state 4.15.0-rc9+ #283 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-fuzzer/3724 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&est->lock)->rlock){+.?.}, at: [<000000008de269fa>] spin_lock include/linux/spinlock.h:310 [inline] (&(&est->lock)->rlock){+.?.}, at: [<000000008de269fa>] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 gen_new_estimator+0x317/0x770 net/core/gen_estimator.c:162 xt_rateest_tg_checkentry+0x487/0xaa0 net/netfilter/xt_RATEEST.c:135 xt_check_target+0x22c/0x7d0 net/netfilter/x_tables.c:845 check_target net/ipv6/netfilter/ip6_tables.c:538 [inline] find_check_entry.isra.7+0x935/0xcf0 net/ipv6/netfilter/ip6_tables.c:580 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:749 do_replace net/ipv6/netfilter/ip6_tables.c:1167 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1693 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:1452 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x29/0xa0 irq event stamp: 365022 hardirqs last enabled at (365022): [<000000003f040828>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (365022): [<000000003f040828>] _raw_spin_unlock_irq+0x27/0x70 kernel/locking/spinlock.c:192 hardirqs last disabled at (365021): [<00000000b72975e0>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (365021): [<00000000b72975e0>] _raw_spin_lock_irq+0x3c/0x80 kernel/locking/spinlock.c:160 softirqs last enabled at (364794): [<00000000980bab4f>] __do_softirq+0x7a0/0xb85 kernel/softirq.c:311 softirqs last disabled at (365019): [<000000001475e062>] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (365019): [<000000001475e062>] irq_exit+0x1cc/0x200 kernel/softirq.c:405 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&est->lock)->rlock); lock(&(&est->lock)->rlock); *** DEADLOCK *** 1 lock held by syz-fuzzer/3724: #0: ((&est->timer)){+.-.}, at: [<00000000b1bfd1a7>] lockdep_copy_map include/linux/lockdep.h:178 [inline] #0: ((&est->timer)){+.-.}, at: [<00000000b1bfd1a7>] call_timer_fn+0x1c6/0x820 kernel/time/timer.c:1308 stack backtrace: CPU: 0 PID: 3724 Comm: syz-fuzzer Not tainted 4.15.0-rc9+ #283 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_usage_bug+0x377/0x38c kernel/locking/lockdep.c:2537 valid_state kernel/locking/lockdep.c:2550 [inline] mark_lock_irq kernel/locking/lockdep.c:2744 [inline] mark_lock+0xf61/0x1430 kernel/locking/lockdep.c:3142 mark_irqflags kernel/locking/lockdep.c:3020 [inline] __lock_acquire+0x173a/0x3e00 kernel/locking/lockdep.c:3383 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 est_timer+0x97/0x7c0 net/core/gen_estimator.c:85 call_timer_fn+0x228/0x820 kernel/time/timer.c:1318 expire_timers kernel/time/timer.c:1355 [inline] __run_timers+0x7ee/0xb70 kernel/time/timer.c:1658 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1684 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:541 [inline] smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:937 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:787 [inline] RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] RIP: 0010:_raw_spin_unlock_irq+0x56/0x70 kernel/locking/spinlock.c:192 RSP: 0018:ffff8801d066fa20 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff11 RAX: dffffc0000000000 RBX: ffff8801db22c2c0 RCX: 0000000000000000 RDX: 1ffffffff0d5918f RSI: 0000000000000001 RDI: ffffffff86ac8c78 RBP: ffff8801d066fa28 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c7718380 R13: 1ffff1003a0cdf4d R14: ffff8801d8196480 R15: ffff8801d8196480 finish_lock_switch kernel/sched/sched.h:1369 [inline] finish_task_switch+0x1d3/0x740 kernel/sched/core.c:2666 context_switch kernel/sched/core.c:2802 [inline] __schedule+0x8f3/0x2060 kernel/sched/core.c:3375 schedule+0xf5/0x430 kernel/sched/core.c:3434 exit_to_usermode_loop+0x1d1/0x310 arch/x86/entry/common.c:151 prepare_exit_to_usermode+0x2e1/0x340 arch/x86/entry/common.c:195 retint_user+0x8/0x18 RIP: 0033:0x7168d9 RSP: 002b:000000c42ecdf790 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff11 RAX: 0000000000000008 RBX: 000000008bea548f RCX: 0000000000000000 RDX: 0000000000b6f040 RSI: 00000000015c6160 RDI: 0000000000456cd0 RBP: 000000c42ecdf7e8 R08: 000000c42006d080 R09: 0000000000807320 R10: 00000000007267c0 R11: 0000000000000006 R12: 0000000000000000 R13: 00000000000000f2 R14: 0000000000000032 R15: 0000000000000000 SELinux: unknown mount option RDS: rds_bind could not find a transport for 0.0.255.255, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 0.0.255.255, load rds_tcp or rds_rdma? kauditd_printk_skb: 120 callbacks suppressed audit: type=1400 audit(1517133262.616:908): avc: denied { map } for pid=16997 comm="syz-executor2" path="socket:[40366]" dev="sockfs" ino=40366 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=unix_stream_socket permissive=1 ieee80211 phy2: Selected rate control algorithm 'minstrel_ht' ieee80211 phy3: Selected rate control algorithm 'minstrel_ht' netlink: 'syz-executor5': attribute type 1 has an invalid length. netlink: 'syz-executor5': attribute type 1 has an invalid length. ieee80211 phy4: Selected rate control algorithm 'minstrel_ht' ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' ieee80211 phy7: Selected rate control algorithm 'minstrel_ht' x_tables: ip_tables: REJECT target: only valid in filter table, not ilter ieee80211 phy8: Selected rate control algorithm 'minstrel_ht' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 QAT: Invalid ioctl QAT: Invalid ioctl CPU: 0 PID: 17364 Comm: syz-executor6 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] kmem_cache_alloc_trace+0x4b/0x750 mm/slab.c:3608 kmalloc include/linux/slab.h:499 [inline] kzalloc include/linux/slab.h:688 [inline] igmpv3_add_delrec net/ipv4/igmp.c:1144 [inline] igmp_group_dropped+0x5ce/0xd30 net/ipv4/igmp.c:1280 ip_mc_dec_group+0x192/0x470 net/ipv4/igmp.c:1650 ip_mc_drop_socket+0x145/0x230 net/ipv4/igmp.c:2647 inet_release+0x4e/0x1c0 net/ipv4/af_inet.c:412 sock_release+0x8d/0x1e0 net/socket.c:602 sock_close+0x16/0x20 net/socket.c:1131 __fput+0x327/0x7e0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x9e/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fe3fe783c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000000000071bea0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000013 RBP: 0000000000000052 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ef850 R13: 0000000000000014 R14: 00007fe3fe7846d4 R15: ffffffffffffffff ieee80211 phy9: Selected rate control algorithm 'minstrel_ht' ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' 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' ieee80211 phy19: Selected rate control algorithm 'minstrel_ht' ieee80211 phy20: Selected rate control algorithm 'minstrel_ht' ieee80211 phy21: Selected rate control algorithm 'minstrel_ht' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 17634 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ieee80211 phy22: Selected rate control algorithm 'minstrel_ht' Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3542 getname_flags+0xcb/0x580 fs/namei.c:138 getname+0x19/0x20 fs/namei.c:209 do_sys_open+0x2e7/0x6d0 fs/open.c:1053 SYSC_open fs/open.c:1077 [inline] SyS_open+0x2d/0x40 fs/open.c:1072 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x40d591 RSP: 002b:00007fd183871780 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 000000000040d591 RDX: 0000000000000000 RSI: 0000000000004001 RDI: 00007fd183871830 RBP: 0000000000000622 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000293 R12: 00000000006f83d0 R13: 0000000000000014 R14: 00007fd1838726d4 R15: ffffffffffffffff FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 17657 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2948 [inline] prepare_alloc_pages mm/page_alloc.c:4187 [inline] __alloc_pages_nodemask+0x338/0xd80 mm/page_alloc.c:4226 __alloc_pages include/linux/gfp.h:456 [inline] __alloc_pages_node include/linux/gfp.h:469 [inline] kmem_getpages mm/slab.c:1413 [inline] cache_grow_begin+0x72/0x3f0 mm/slab.c:2668 cache_alloc_refill mm/slab.c:3035 [inline] ____cache_alloc mm/slab.c:3117 [inline] __do_cache_alloc mm/slab.c:3339 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x400/0x760 mm/slab.c:3542 getname_flags+0xcb/0x580 fs/namei.c:138 getname+0x19/0x20 fs/namei.c:209 do_sys_open+0x2e7/0x6d0 fs/open.c:1053 SYSC_open fs/open.c:1077 [inline] SyS_open+0x2d/0x40 fs/open.c:1072 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x40d591 RSP: 002b:00007fd183871780 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 000000000040d591 RDX: 0000000000000000 RSI: 0000000000004001 RDI: 00007fd183871830 RBP: 0000000000000622 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000293 R12: 00000000006f83d0 R13: 0000000000000014 R14: 00007fd1838726d4 R15: ffffffffffffffff ieee80211 phy23: Selected rate control algorithm 'minstrel_ht' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 17682 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3542 kmem_cache_zalloc include/linux/slab.h:678 [inline] get_empty_filp+0xfb/0x4f0 fs/file_table.c:123 path_openat+0xed/0x3530 fs/namei.c:3496 do_filp_open+0x25b/0x3b0 fs/namei.c:3554 do_sys_open+0x502/0x6d0 fs/open.c:1059 SYSC_open fs/open.c:1077 [inline] SyS_open+0x2d/0x40 fs/open.c:1072 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x40d591 RSP: 002b:00007fd183871780 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 000000000040d591 RDX: 0000000000000000 RSI: 0000000000004001 RDI: 00007fd183871830 RBP: 0000000000000622 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000293 R12: 00000000006f83d0 R13: 0000000000000014 R14: 00007fd1838726d4 R15: ffffffffffffffff FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 17696 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #283 ieee80211 phy24: Selected rate control algorithm 'minstrel_ht' 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3542 kmem_cache_zalloc include/linux/slab.h:678 [inline] file_alloc_security security/selinux/hooks.c:369 [inline] selinux_file_alloc_security+0xae/0x190 security/selinux/hooks.c:3454 security_file_alloc+0x6d/0xa0 security/security.c:873 get_empty_filp+0x189/0x4f0 fs/file_table.c:129 path_openat+0xed/0x3530 fs/namei.c:3496 do_filp_open+0x25b/0x3b0 fs/namei.c:3554 do_sys_open+0x502/0x6d0 fs/open.c:1059 SYSC_open fs/open.c:1077 [inline] SyS_open+0x2d/0x40 fs/open.c:1072 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x40d591 RSP: 002b:00007fd183871780 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 000000000040d591 RDX: 0000000000000000 RSI: 0000000000004001 RDI: 00007fd183871830 RBP: 0000000000000622 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000293 R12: 00000000006f83d0 R13: 0000000000000014 R14: 00007fd1838726d4 R15: ffffffffffffffff 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' ieee80211 phy29: Selected rate control algorithm 'minstrel_ht' ieee80211 phy30: Selected rate control algorithm 'minstrel_ht' device eql entered promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 18137 Comm: syz-executor4 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3289 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3632 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1147 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1839 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xca/0x110 net/socket.c:648 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2028 __sys_sendmsg+0xe5/0x210 net/socket.c:2062 SYSC_sendmsg net/socket.c:2073 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2069 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fca34bf9c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fca34bf9aa0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 00000000204b5fc8 RDI: 0000000000000013 RBP: 00007fca34bf9a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007fca34bf9bc8 R14: 00000000004b8096 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 18158 Comm: syz-executor4 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3289 [inline] kmem_cache_alloc_node_trace+0x5a/0x750 mm/slab.c:3651 __do_kmalloc_node mm/slab.c:3671 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3686 __kmalloc_reserve.isra.39+0x41/0xd0 net/core/skbuff.c:137 __alloc_skb+0x13b/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1147 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1839 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xca/0x110 net/socket.c:648 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2028 __sys_sendmsg+0xe5/0x210 net/socket.c:2062 SYSC_sendmsg net/socket.c:2073 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2069 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fca34bf9c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fca34bf9aa0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 00000000204b5fc8 RDI: 0000000000000013 RBP: 00007fca34bf9a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007fca34bf9bc8 R14: 00000000004b8096 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 18167 Comm: syz-executor4 Not tainted 4.15.0-rc9+ #283 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] __do_kmalloc mm/slab.c:3706 [inline] __kmalloc+0x63/0x760 mm/slab.c:3717 kmalloc include/linux/slab.h:504 [inline] kzalloc include/linux/slab.h:688 [inline] wiphy_new_nm+0x819/0x21d0 net/wireless/core.c:407