binder: 12576:12577 got reply transaction with no transaction stack
binder: 12576:12577 transaction failed 29201/-71, size 64-80 line 2920
binder: 12576:12577 ERROR: BC_REGISTER_LOOPER called without request
BUG: spinlock bad magic on CPU#0, syz-executor3/12581
 lock: 0xffff8801ce792118, .magic: dead4eac, .owner: <none>/-1, .owner_cpu: -1
CPU: 0 PID: 12581 Comm: syz-executor3 Not tainted 4.9.81-g2a5cc53 #43
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c19c7b98 ffffffff81d94de9 ffff8801ce792118 ffff8801b9771800
 ffff8801d9811e7c ffff8801ce792118 ffff8801cb242b10 ffff8801c19c7bd8
 ffffffff812489fd ffffffff8122404f ffff880100000000 0000000000000000
Call Trace:
 [<ffffffff81d94de9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94de9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff812489fd>] spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67
 [<ffffffff81248d34>] spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 [<ffffffff81248d34>] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
 [<ffffffff81248d34>] do_raw_spin_lock+0x174/0x1e0 kernel/locking/spinlock_debug.c:112
 [<ffffffff838b3c56>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 [<ffffffff838b3c56>] _raw_spin_lock_irqsave+0x56/0x70 kernel/locking/spinlock.c:159
 [<ffffffff8122404f>] add_wait_queue+0x3f/0xa0 kernel/sched/wait.c:28
 [<ffffffff816500ed>] ep_ptable_queue_proc+0x1bd/0x2b0 fs/eventpoll.c:1138
 [<ffffffff826667fb>] poll_wait include/linux/poll.h:45 [inline]
 [<ffffffff826667fb>] sg_poll+0xcb/0x340 drivers/scsi/sg.c:1159
 [<ffffffff81655507>] ep_item_poll fs/eventpoll.c:811 [inline]
 [<ffffffff81655507>] ep_insert fs/eventpoll.c:1347 [inline]
 [<ffffffff81655507>] SYSC_epoll_ctl fs/eventpoll.c:1975 [inline]
 [<ffffffff81655507>] SyS_epoll_ctl+0x11d7/0x2190 fs/eventpoll.c:1861
 [<ffffffff81006f97>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006f97>] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387
 [<ffffffff838b54f4>] entry_SYSENTER_compat+0x74/0x83 arch/x86/entry/entry_64_compat.S:127
binder: 12576:12606 got reply transaction with no transaction stack
binder: 12576:12606 transaction failed 29201/-71, size 24-8 line 2920
binder: 12576:12616 ioctl 40046205 80 returned -22
binder_alloc: binder_alloc_mmap_handler: 12576 20000000-20002000 already mapped failed -16
binder: 12576:12606 got reply transaction with no transaction stack
binder: 12576:12606 transaction failed 29201/-71, size 64-80 line 2920
binder: 12576:12606 ERROR: BC_REGISTER_LOOPER called without request
binder: undelivered TRANSACTION_ERROR: 29201
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 12578 Comm: syz-executor2 Not tainted 4.9.81-g2a5cc53 #43
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b6ff6000 task.stack: ffff8801b6d68000
RIP: 0010:[<ffffffff8144ef61>]  [<ffffffff8144ef61>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144ef61>]  [<ffffffff8144ef61>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144ef61>]  [<ffffffff8144ef61>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144ef61>]  [<ffffffff8144ef61>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144ef61>]  [<ffffffff8144ef61>] __free_pages+0x21/0x80 mm/page_alloc.c:3897
RSP: 0018:ffff8801b6d6fa50  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff8266840b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801b6d6fa60 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c675c200 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f6eefb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000844f464 CR3: 00000001c73b6000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801b6ff6000 ffff8801c675c358 ffff8801b6d6fac0 ffffffff82668431
 ffff8801c675c370 ffffed0038ceb86b ffffed0038ceb86e ffff8801c675c368
 dead4ead00000000 ffff8801c675c340 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82668431>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1944
 [<ffffffff826687f5>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1825
 [<ffffffff826688b9>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:566
 [<ffffffff8266a527>] sg_read+0x8b7/0x1440 drivers/scsi/sg.c:455
 [<ffffffff8156c123>] __vfs_read+0x103/0x670 fs/read_write.c:452
 [<ffffffff8156febe>] vfs_read+0x11e/0x380 fs/read_write.c:475
 [<ffffffff81573be9>] SYSC_read fs/read_write.c:591 [inline]
 [<ffffffff81573be9>] SyS_read+0xd9/0x1b0 fs/read_write.c:584
 [<ffffffff81006f97>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006f97>] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387
 [<ffffffff838b54f4>] entry_SYSENTER_compat+0x74/0x83 arch/x86/entry/entry_64_compat.S:127
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144ef61>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144ef61>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144ef61>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144ef61>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144ef61>] __free_pages+0x21/0x80 mm/page_alloc.c:3897
 RSP <ffff8801b6d6fa50>
---[ end trace 56ef357ec7f75497 ]---