kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
BUG: spinlock bad magic on CPU#1, syz-executor0/10741
 lock: 0xffff8801c4ee4218, .magic: dead4eac, .owner: <none>/-1, .owner_cpu: -1
CPU: 1 PID: 10741 Comm: syz-executor0 Not tainted 4.9.76-g8dec074 #23
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c3f7f210 ffffffff81d93169 ffff8801c4ee4218 ffff8801c43b6000
 0000000000000001 0000000000000001 0000000000000000 ffff8801c3f7f250
 ffffffff812477cd ffffffff81222b0e 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff81d93169>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d93169>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff812477cd>] spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67
 [<ffffffff81247b04>] spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 [<ffffffff81247b04>] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
 [<ffffffff81247b04>] do_raw_spin_lock+0x174/0x1e0 kernel/locking/spinlock_debug.c:112
 [<ffffffff838b08d6>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 [<ffffffff838b08d6>] _raw_spin_lock_irqsave+0x56/0x70 kernel/locking/spinlock.c:159
 [<ffffffff81222b0e>] __wake_up+0x1e/0x50 kernel/sched/wait.c:94
 [<ffffffff8266a1bc>] sg_rq_end_io+0x5dc/0xbc0 drivers/scsi/sg.c:1386
 [<ffffffff81d228c4>] __blk_mq_end_request+0x54/0xc0 block/blk-mq.c:331
 [<ffffffff825cf7b5>] scsi_end_request+0x135/0x5c0 drivers/scsi/scsi_lib.c:627
 [<ffffffff825d93ee>] scsi_io_completion+0x15de/0x1730 drivers/scsi/scsi_lib.c:829
 [<ffffffff825bbe18>] scsi_finish_command+0x3b8/0x530 drivers/scsi/scsi.c:607
 [<ffffffff825d6ac0>] scsi_softirq_done+0x250/0x350 drivers/scsi/scsi_lib.c:1567
 [<ffffffff81d244e5>] blk_mq_ipi_complete_request block/blk-mq.c:376 [inline]
 [<ffffffff81d244e5>] __blk_mq_complete_request+0x205/0x4b0 block/blk-mq.c:388
 [<ffffffff81d247f5>] blk_mq_complete_request+0x65/0x80 block/blk-mq.c:407
 [<ffffffff825d2c0e>] scsi_mq_done+0xce/0x320 drivers/scsi/scsi_lib.c:1877
 [<ffffffff825ce091>] scsi_dispatch_cmd+0x2b1/0x990 drivers/scsi/scsi_lib.c:1648
 [<ffffffff825d22c0>] scsi_queue_rq+0x1170/0x19f0 drivers/scsi/scsi_lib.c:1924
 [<ffffffff81d28cb4>] __blk_mq_run_hw_queue+0x854/0xe30 block/blk-mq.c:826
 [<ffffffff81d283de>] blk_mq_run_hw_queue+0x13e/0x1c0 block/blk-mq.c:911
 [<ffffffff81d2d4c0>] blk_mq_insert_request+0x240/0x5c0 block/blk-mq.c:1053
 [<ffffffff81d1510c>] blk_execute_rq_nowait+0x12c/0x320 block/blk-exec.c:68
 [<ffffffff8266dac3>] sg_common_write.isra.23+0xcb3/0x18d0 drivers/scsi/sg.c:806
 [<ffffffff8266ecc0>] sg_new_write.isra.26+0x5e0/0x940 drivers/scsi/sg.c:749
 [<ffffffff82670dc0>] sg_ioctl+0x1da0/0x2c30 drivers/scsi/sg.c:890
 [<ffffffff815aca5f>] vfs_ioctl+0x6f/0xb0 fs/ioctl.c:43
 [<ffffffff8167b6a0>] do_ioctl+0x40/0x60 fs/compat_ioctl.c:136
 [<ffffffff8167d4e4>] sg_ioctl_trans fs/compat_ioctl.c:374 [inline]
 [<ffffffff8167d4e4>] do_ioctl_trans fs/compat_ioctl.c:1464 [inline]
 [<ffffffff8167d4e4>] C_SYSC_ioctl fs/compat_ioctl.c:1615 [inline]
 [<ffffffff8167d4e4>] compat_SyS_ioctl+0x1e24/0x2050 fs/compat_ioctl.c:1549
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b2334>] entry_SYSENTER_compat+0x74/0x83 arch/x86/entry/entry_64_compat.S:127
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 10737 Comm: syz-executor3 Not tainted 4.9.76-g8dec074 #23
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c3c8c800 task.stack: ffff8801c4148000
RIP: 0010:[<ffffffff8144dcb1>]  [<ffffffff8144dcb1>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144dcb1>]  [<ffffffff8144dcb1>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144dcb1>]  [<ffffffff8144dcb1>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144dcb1>]  [<ffffffff8144dcb1>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144dcb1>]  [<ffffffff8144dcb1>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c414f940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff8266642b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000002 RDI: dead4ead0000001c
RBP: ffff8801c414f950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c3a90000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f6ffab40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020007000 CR3: 00000001cbce4000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801c3c8c800 ffff8801c3a90158 ffff8801c414f9b0 ffffffff82666451
 ffff8801c3a90170 ffffed003875202b ffffed003875202e ffff8801c3a90168
 dead4ead00000000 ffff8801c3a90140 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82666451>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82666815>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff826668d9>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff826684cd>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156b571>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff81570492>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff81570492>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff815707b3>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff81570914>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81572e86>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81572e86>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b2334>] 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  [<ffffffff8144dcb1>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144dcb1>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144dcb1>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144dcb1>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144dcb1>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c414f940>
---[ end trace 90e76b11704c9b7e ]---