QAT: Invalid ioctl netlink: 8 bytes leftover after parsing attributes in process `syz-executor5'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium ================================ WARNING: inconsistent lock state 4.15.0-rc9+ #283 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor5/5476 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&est->lock)->rlock){+.?.}, at: [<0000000028f05609>] spin_lock include/linux/spinlock.h:310 [inline] (&(&est->lock)->rlock){+.?.}, at: [<0000000028f05609>] 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: 4766 hardirqs last enabled at (4766): [<000000006227908b>] restore_regs_and_return_to_kernel+0x0/0x21 hardirqs last disabled at (4765): [<000000001a8a201f>] apic_timer_interrupt+0xa4/0xb0 arch/x86/entry/entry_64.S:937 softirqs last enabled at (4750): [<0000000004c312c2>] spin_unlock_bh include/linux/spinlock.h:355 [inline] softirqs last enabled at (4750): [<0000000004c312c2>] remove_user_radios drivers/net/wireless/mac80211_hwsim.c:3354 [inline] softirqs last enabled at (4750): [<0000000004c312c2>] mac80211_hwsim_netlink_notify+0x21b/0x854 drivers/net/wireless/mac80211_hwsim.c:3366 softirqs last disabled at (4761): [<000000008ce506e4>] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (4761): [<000000008ce506e4>] 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 *** 3 locks held by syz-executor5/5476: #0: ((netlink_chain).rwsem){++++}, at: [<00000000a243503d>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((netlink_chain).rwsem){++++}, at: [<00000000a243503d>] blocking_notifier_call_chain+0xe1/0x190 kernel/notifier.c:328 #1: (console_lock){+.+.}, at: [<00000000af608363>] vprintk_emit+0x49b/0x590 kernel/printk/printk.c:1756 #2: ((&est->timer)){+.-.}, at: [<0000000037a02605>] lockdep_copy_map include/linux/lockdep.h:178 [inline] #2: ((&est->timer)){+.-.}, at: [<0000000037a02605>] call_timer_fn+0x1c6/0x820 kernel/time/timer.c:1308 stack backtrace: CPU: 0 PID: 5476 Comm: syz-executor5 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_restore arch/x86/include/asm/paravirt.h:777 [inline] RIP: 0010:console_unlock+0x966/0xd80 kernel/printk/printk.c:2235 RSP: 0018:ffff8801c3a5eb78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff11 RAX: ffff8801bc0ee080 RBX: 0000000000000000 RCX: ffffffff8159aebd RDX: 0000000000000000 RSI: 1ffff1003781dd28 RDI: 0000000000000293 RBP: ffff8801c3a5ec60 R08: 1ffff1003874bd3d R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff83b071a0 R15: dffffc0000000000 vprintk_emit+0x4ad/0x590 kernel/printk/printk.c:1757 vprintk_default+0x28/0x30 kernel/printk/printk.c:1796 vprintk_func+0x57/0xc0 kernel/printk/printk_safe.c:379 printk+0xaa/0xca kernel/printk/printk.c:1829 mac80211_hwsim_netlink_notify+0x407/0x854 drivers/net/wireless/mac80211_hwsim.c:3369 notifier_call_chain+0x136/0x2c0 kernel/notifier.c:93 __blocking_notifier_call_chain kernel/notifier.c:317 [inline] blocking_notifier_call_chain+0x102/0x190 kernel/notifier.c:328 netlink_release+0x8ca/0xea0 net/netlink/af_netlink.c:753 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 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x9bb/0x1ad0 kernel/exit.c:865 do_group_exit+0x149/0x400 kernel/exit.c:968 get_signal+0x73f/0x16c0 kernel/signal.c:2335 do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:264 [inline] do_syscall_64+0x6dc/0x920 arch/x86/entry/common.c:290 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x453299 RSP: 002b:00007f74c639fc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: 000000000000001c RBX: 000000000071bea0 RCX: 0000000000453299 RDX: 000000000000001c RSI: 0000000020df9fe0 RDI: 0000000000000017 RBP: 000000000000064f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f8808 R13: 00000000ffffffff R14: 00007f74c63a06d4 R15: 0000000000000000 ptrace attach of "/root/syz-executor5"[3726] was attempted by "/root/syz-executor5"[5561] ptrace attach of "/root/syz-executor5"[3726] was attempted by "/root/syz-executor5"[5571] sit: non-ECT from 0.0.0.0 with TOS=0x2 kauditd_printk_skb: 59 callbacks suppressed audit: type=1326 audit(1517129762.750:85): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5653 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129762.922:86): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5692 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129763.058:87): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5728 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129763.083:88): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5726 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129763.210:89): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5762 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129763.295:90): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5789 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129763.320:91): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5794 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129763.425:92): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5812 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129763.457:93): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5821 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 audit: type=1326 audit(1517129763.506:94): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5843 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 sit: non-ECT from 0.0.0.0 with TOS=0x2 sit: non-ECT from 0.0.0.0 with TOS=0x2 sit: non-ECT from 0.0.0.0 with TOS=0x2 sit: non-ECT from 0.0.0.0 with TOS=0x2 device lo entered promiscuous mode device lo left promiscuous mode irq bypass consumer (token 0000000043c41753) registration fails: -16 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 6850 Comm: syz-executor3 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_current+0xb6/0x1e0 mm/mempolicy.c:2036 alloc_pages include/linux/gfp.h:492 [inline] skb_page_frag_refill+0x358/0x5f0 net/core/sock.c:2201 tun_build_skb.isra.49+0x2e1/0x17d0 drivers/net/tun.c:1459 tun_get_user+0x1693/0x3710 drivers/net/tun.c:1628 tun_chr_write_iter+0xb9/0x160 drivers/net/tun.c:1809 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653 do_iter_write+0x154/0x540 fs/read_write.c:932 vfs_writev+0x18a/0x340 fs/read_write.c:977 do_writev+0xfc/0x2a0 fs/read_write.c:1012 SYSC_writev fs/read_write.c:1085 [inline] SyS_writev+0x27/0x30 fs/read_write.c:1082 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453171 RSP: 002b:00007fb733ce6b80 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fb733ce6aa0 RCX: 0000000000453171 RDX: 0000000000000001 RSI: 00007fb733ce6bd0 RDI: 0000000000000012 RBP: 00007fb733ce6a90 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000004a R11: 0000000000000293 R12: 00000000004b8096 R13: 00007fb733ce6bc8 R14: 00000000004b8096 R15: 0000000000000000 kauditd_printk_skb: 43 callbacks suppressed audit: type=1326 audit(1517129767.826:138): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7119 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129767.899:139): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7119 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 audit: type=1326 audit(1517129767.978:140): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7173 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 CPU: 0 PID: 7174 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_current+0xb6/0x1e0 mm/mempolicy.c:2036 alloc_pages include/linux/gfp.h:492 [inline] skb_page_frag_refill+0x358/0x5f0 net/core/sock.c:2201 tun_build_skb.isra.49+0x2e1/0x17d0 drivers/net/tun.c:1459 tun_get_user+0x1693/0x3710 drivers/net/tun.c:1628 tun_chr_write_iter+0xb9/0x160 drivers/net/tun.c:1809 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653 do_iter_write+0x154/0x540 fs/read_write.c:932 vfs_writev+0x18a/0x340 fs/read_write.c:977 do_writev+0xfc/0x2a0 fs/read_write.c:1012 SYSC_writev fs/read_write.c:1085 [inline] SyS_writev+0x27/0x30 fs/read_write.c:1082 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453171 RSP: 002b:00007f8048081b80 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f8048081aa0 RCX: 0000000000453171 RDX: 0000000000000001 RSI: 00007f8048081bd0 RDI: 0000000000000012 RBP: 00007f8048081a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000032 R11: 0000000000000293 R12: 00000000004b8096 R13: 00007f8048081bc8 R14: 00000000004b8096 R15: 0000000000000000 audit: type=1326 audit(1517129768.481:141): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7173 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129768.559:142): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7206 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129768.663:143): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7206 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129768.850:144): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7310 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517129768.876:145): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7310 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1400 audit(1517129768.926:146): avc: denied { setuid } for pid=7336 comm="syz-executor4" capability=7 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1326 audit(1517129768.951:147): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=7336 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0