netlink: 'syz-executor7': attribute type 19 has an invalid length. ============================= mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium WARNING: suspicious RCU usage 4.16.0-rc1+ #309 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-executor0/6116: #0: (rcu_read_lock){....}, at: [<00000000d3e9eb7b>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 stack backtrace: CPU: 1 PID: 6116 Comm: syz-executor0 Not tainted 4.16.0-rc1+ #309 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+0x2a2/0x760 mm/slab.c:3539 rds_tcp_conn_alloc+0xa7/0x4e0 net/rds/tcp.c:296 __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 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f8a1d813c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8a1d8146d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020fc5fc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004a7 R14: 00000000006f7048 R15: 0000000000000000 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 6116, name: syz-executor0 1 lock held by syz-executor0/6116: #0: (rcu_read_lock){....}, at: [<00000000d3e9eb7b>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 1 PID: 6116 Comm: syz-executor0 Not tainted 4.16.0-rc1+ #309 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+0x2a2/0x760 mm/slab.c:3539 rds_tcp_conn_alloc+0xa7/0x4e0 net/rds/tcp.c:296 __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 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f8a1d813c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8a1d8146d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020fc5fc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004a7 R14: 00000000006f7048 R15: 0000000000000000 binder: 6226:6229 ERROR: BC_REGISTER_LOOPER called without request binder: BINDER_SET_CONTEXT_MGR already set binder: 6226:6242 ioctl 40046207 0 returned -16 binder: 6226:6229 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 6226: binder_alloc_buf, no vma binder: 6226:6242 transaction failed 29189/-3, size 0-0 line 2957 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 6226:6242 transaction 2 out, still active binder: undelivered TRANSACTION_COMPLETE QAT: Stopping all acceleration devices. binder: send failed reply for transaction 2, target dead irq bypass consumer (token 00000000ca14521f) registration fails: -16 irq bypass consumer (token 00000000ca14521f) registration fails: -16 binder: 6339:6342 Acquire 1 refcount change on invalid ref 3 ret -22 binder: 6339:6342 BC_ACQUIRE_DONE uffffffffffffffff no match binder_alloc: 6339: binder_alloc_buf, no vma binder: 6339:6342 transaction failed 29189/-3, size 3004-0 line 2957 binder: BINDER_SET_CONTEXT_MGR already set binder: 6339:6346 ioctl 40046207 0 returned -16 binder_alloc: 6339: binder_alloc_buf, no vma binder: 6339:6346 transaction failed 29189/-3, size 3004-0 line 2957 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189