============================= WARNING: suspicious RCU usage 4.15.0-rc9+ #284 Not tainted QAT: Invalid ioctl ----------------------------- net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by syz-executor1/5400: #0: (cb_lock){++++}, at: [<0000000046abc5a6>] genl_rcv+0x19/0x40 net/netlink/genetlink.c:634 #1: (genl_mutex){+.+.}, at: [<0000000023813831>] genl_lock net/netlink/genetlink.c:33 [inline] #1: (genl_mutex){+.+.}, at: [<0000000023813831>] genl_rcv_msg+0x115/0x140 net/netlink/genetlink.c:622 stack backtrace: CPU: 0 PID: 5400 Comm: syz-executor1 Not tainted 4.15.0-rc9+ #284 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 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4587 tipc_bearer_find+0x2b4/0x3b0 net/tipc/bearer.c:177 tipc_nl_compat_link_set+0x329/0x9f0 net/tipc/netlink_compat.c:729 __tipc_nl_compat_doit net/tipc/netlink_compat.c:288 [inline] tipc_nl_compat_doit+0x15b/0x670 net/tipc/netlink_compat.c:335 tipc_nl_compat_handle net/tipc/netlink_compat.c:1119 [inline] tipc_nl_compat_recv+0x1135/0x18f0 net/tipc/netlink_compat.c:1201 genl_family_rcv_msg+0x7b7/0xfb0 net/netlink/genetlink.c:599 genl_rcv_msg+0xb2/0x140 net/netlink/genetlink.c:624 netlink_rcv_skb+0x14b/0x380 net/netlink/af_netlink.c:2409 genl_rcv+0x28/0x40 net/netlink/genetlink.c:635 netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline] netlink_unicast+0x4ee/0x700 net/netlink/af_netlink.c:1301 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1864 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:00007ff933332c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff933333700 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 0000000020003000 RDI: 0000000000000013 RBP: 0000000000a2f3c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f33f R14: 00007ff9333339c0 R15: 0000000000000000 binder: 5529:5540 BC_FREE_BUFFER u0000000000000000 no match binder: BINDER_SET_CONTEXT_MGR already set binder: 5529:5557 ioctl 40046207 0 returned -16 binder: 5529:5566 BC_FREE_BUFFER u0000000000000000 no match dccp_close: ABORT with 2 bytes unread ipt_REJECT: TCP_RESET invalid for non-tcp kauditd_printk_skb: 93 callbacks suppressed audit: type=1326 audit(1517208777.034:122): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x7ffc0000 ipt_REJECT: TCP_RESET invalid for non-tcp audit: type=1326 audit(1517208777.035:123): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=72 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.035:124): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.036:125): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=323 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.036:126): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.036:127): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=16 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.037:128): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.038:129): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=2 compat=0 ip=0x40d591 code=0x7ffc0000 audit: type=1326 audit(1517208777.038:130): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x7ffc0000 audit: type=1326 audit(1517208777.041:131): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5774 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=c000003e syscall=49 compat=0 ip=0x453299 code=0x7ffc0000 xt_connbytes: Forcing CT accounting to be enabled IPVS: ftp: loaded support on port[0] = 21 IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready netlink: 224 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 224 bytes leftover after parsing attributes in process `syz-executor4'. binder: 6459:6463 got transaction with invalid offset (0, min 0 max 65351) or object. binder: 6459:6463 transaction failed 29201/-22, size 65351-8 line 2966 binder_alloc: binder_alloc_mmap_handler: 6459 20265000-20279000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 6459:6463 ioctl 40046207 0 returned -16 binder_alloc: 6459: binder_alloc_buf, no vma binder: 6459:6474 transaction failed 29189/-3, size 65351-8 line 2903 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 QAT: Invalid ioctl kauditd_printk_skb: 138 callbacks suppressed audit: type=1400 audit(1517208782.285:268): avc: denied { net_bind_service } for pid=1328 comm="kworker/1:1H" capability=10 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 QAT: Invalid ioctl IPVS: ftp: loaded support on port[0] = 21 Cannot find add_set index 0 as target Cannot find add_set index 0 as target could not allocate digest TFM handle cmac(xeta) audit: type=1400 audit(1517208783.053:269): avc: denied { setopt } for pid=6733 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