audit: type=1400 audit(1518396467.606:49): avc: denied { net_bind_service } for pid=9988 comm="syz-executor0" capability=10 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 ============================= WARNING: suspicious RCU usage 4.16.0-rc1+ #219 Not tainted ----------------------------- ./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor2/9990: #0: (rcu_read_lock){....}, at: [<0000000025755df4>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 stack backtrace: CPU: 1 PID: 10006 Comm: syz-executor5 Not tainted 4.16.0-rc1+ #219 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:422 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3539 getname_flags+0xcb/0x580 fs/namei.c:138 getname fs/namei.c:209 [inline] SYSC_renameat2 fs/namei.c:4510 [inline] SyS_renameat2+0x28c/0x1010 fs/namei.c:4481 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ee/0xfa1 arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129 RIP: 0023:0xf7facc79 RSP: 002b:00000000f77a809c EFLAGS: 00000286 ORIG_RAX: 0000000000000161 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 000000002001dff6 RDX: 0000000000000015 RSI: 0000000020e14ff6 RDI: 0000000000000002 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 CPU: 0 PID: 9990 Comm: syz-executor2 Not tainted 4.16.0-rc1+ #219 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:4592 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline] ___might_sleep+0x385/0x470 kernel/sched/core.c:6093 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ee/0xfa1 arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129 RIP: 0023:0xf7f9ac79 RSP: 002b:00000000f779609c EFLAGS: 00000286 ORIG_RAX: 0000000000000171 RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020218000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000020062000 RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 9990, name: syz-executor2 1 lock held by syz-executor2/9990: #0: (rcu_read_lock){....}, at: [<0000000025755df4>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 0 PID: 9990 Comm: syz-executor2 Not tainted 4.16.0-rc1+ #219 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 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ee/0xfa1 arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129 RIP: 0023:0xf7f9ac79 RSP: 002b:00000000f779609c EFLAGS: 00000286 ORIG_RAX: 0000000000000171 RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020218000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000020062000 RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 kernel msg: ebtables bug: please report to author: Wrong len argument syz-executor0 (10183) used greatest stack depth: 14896 bytes left binder: 10251:10253 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 10251:10253 got reply transaction with bad transaction stack, transaction 24 has target 10251:0 binder: 10251:10253 transaction failed 29201/-71, size 0-8 line 2772 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 10251: binder_alloc_buf, no vma binder: 10251:10265 transaction failed 29189/-3, size 0-0 line 2957 binder: 10251:10253 ioctl 40046207 0 returned -16 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 10251:10253 transaction 24 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 24, target dead MPI: mpi too large (16392 bits) audit: type=1400 audit(1518396470.944:50): avc: denied { ioctl } for pid=10515 comm="syz-executor7" path="socket:[27534]" dev="sockfs" ino=27534 ioctlcmd=0x8901 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=1326 audit(1518396471.077:51): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.121:52): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=260 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.121:53): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 sctp: [Deprecated]: syz-executor0 (pid 10558) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead audit: type=1326 audit(1518396471.122:54): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.124:55): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=238 compat=1 ip=0xf7f81c79 code=0x7ffc0000 sctp: [Deprecated]: syz-executor0 (pid 10560) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead audit: type=1326 audit(1518396471.125:56): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.126:57): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.217:58): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=192 compat=1 ip=0xf7f81c79 code=0x7ffc0000 audit: type=1326 audit(1518396471.223:59): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=10532 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f81c79 code=0x7ffc0000 binder_alloc: binder_alloc_mmap_handler: 10798 2011a000-2051a000 already mapped failed -16 irq bypass consumer (token 000000000aad9bd1) registration fails: -16 irq bypass consumer (token 00000000c7f88be5) registration fails: -16 encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified QAT: Invalid ioctl QAT: Invalid ioctl Cannot find add_set index 0 as target Cannot find add_set index 0 as target netlink: 32 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 32 bytes leftover after parsing attributes in process `syz-executor3'. device syz3 entered promiscuous mode device syz3 left promiscuous mode device syz3 entered promiscuous mode binder: 11460:11473 BC_REQUEST_DEATH_NOTIFICATION death notification already set binder_alloc: binder_alloc_mmap_handler: 11471 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 11471: binder_alloc_buf, no vma binder: 11471:11482 transaction failed 29189/-3, size 40-8 line 2957 binder: 11460:11483 BC_REQUEST_DEATH_NOTIFICATION death notification already set binder: 11471:11472 ioctl 40046207 0 returned -16 binder: 11471:11472 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 11471:11472 transaction 30 out, still active binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 30, target dead sock: sock_set_timeout: `syz-executor2' (pid 11505) tries to set negative timeout x_tables: ip_tables: rpfilter match: used from hooks OUTPUT, but only valid from PREROUTING sock: sock_set_timeout: `syz-executor2' (pid 11507) tries to set negative timeout kauditd_printk_skb: 28 callbacks suppressed audit: type=1400 audit(1518396476.490:88): avc: denied { map } for pid=11618 comm="syz-executor3" path="/dev/autofs" dev="devtmpfs" ino=1101 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:autofs_device_t:s0 tclass=chr_file permissive=1 netlink: 'syz-executor0': attribute type 1 has an invalid length. QAT: Invalid ioctl QAT: Invalid ioctl