kasan: GPF could be caused by NULL-ptr deref or user memory access[   63.741852] sd 0:0:1:0: [sg0] tag#3 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#3 CDB: Test Unit Ready
sd 0:0:1:0: [sg0] tag#3 CDB[00]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#3 CDB[10]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#3 CDB[20]: 00 00 00
BUG: spinlock bad magic on CPU#0, syz-executor1/6332
 lock: 0xffff8801d2518018, .magic: dead4eac, .owner: <none>/-1, .owner_cpu: -1
CPU: 0 PID: 6332 Comm: syz-executor1 Not tainted 4.4.125-g38f41ec #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 72b65fb521db503a ffff8801cb3fef38 ffffffff81d067bd
 ffff8801d2518018 ffff8800b5ab9800 0000000000000001 0000000000000001
 0000000000000000 ffff8801cb3fef78 ffffffff81246f8d 0000000000000000
Call Trace:
 [<ffffffff81d067bd>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d067bd>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81246f8d>] spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67
 [<ffffffff81247378>] spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 [<ffffffff81247378>] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
 [<ffffffff81247378>] do_raw_spin_lock+0x228/0x2c0 kernel/locking/spinlock_debug.c:135
 [<ffffffff83779546>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 [<ffffffff83779546>] _raw_spin_lock_irqsave+0x56/0x70 kernel/locking/spinlock.c:159
 [<ffffffff8121fcce>] __wake_up+0x1e/0x50 kernel/sched/wait.c:94
 [<ffffffff825be9dc>] sg_rq_end_io+0x5dc/0xbc0 drivers/scsi/sg.c:1389
 [<ffffffff81c9b584>] __blk_mq_end_request+0x54/0xc0 block/blk-mq.c:311
 [<ffffffff82526615>] scsi_end_request+0x135/0x5b0 drivers/scsi/scsi_lib.c:716
 [<ffffffff8252ebea>] scsi_io_completion+0x94a/0x1710 drivers/scsi/scsi_lib.c:1055
 [<ffffffff82512d9f>] scsi_finish_command+0x3af/0x520 drivers/scsi/scsi.c:607
 [<ffffffff8252cf60>] scsi_softirq_done+0x250/0x350 drivers/scsi/scsi_lib.c:1654
 [<ffffffff81c9d7e5>] blk_mq_ipi_complete_request block/blk-mq.c:356 [inline]
 [<ffffffff81c9d7e5>] __blk_mq_complete_request+0x205/0x500 block/blk-mq.c:368
 [<ffffffff81c9db3b>] blk_mq_complete_request+0x5b/0x70 block/blk-mq.c:387
 [<ffffffff82529c3b>] scsi_mq_done+0xfb/0x3c0 drivers/scsi/scsi_lib.c:1964
 [<ffffffff82524940>] scsi_dispatch_cmd+0x2b0/0xae0 drivers/scsi/scsi_lib.c:1735
 [<ffffffff825292b9>] scsi_queue_rq+0x1179/0x1a00 drivers/scsi/scsi_lib.c:2011
 [<ffffffff81c9f509>] __blk_mq_run_hw_queue+0x739/0xcd0 block/blk-mq.c:779
 [<ffffffff81c9ed33>] blk_mq_run_hw_queue+0xf3/0x190 block/blk-mq.c:867
 [<ffffffff81ca5e41>] blk_mq_insert_request+0x261/0x320 block/blk-mq.c:1015
 [<ffffffff81c8cfc3>] blk_execute_rq_nowait+0x123/0x310 block/blk-exec.c:68
 [<ffffffff825c2985>] sg_common_write.isra.20+0xca5/0x18f0 drivers/scsi/sg.c:819
 [<ffffffff825c3b91>] sg_new_write.isra.23+0x5c1/0x920 drivers/scsi/sg.c:757
 [<ffffffff825c55eb>] sg_ioctl+0x16fb/0x2a00 drivers/scsi/sg.c:903
 [<ffffffff8155a71a>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff8155a71a>] do_vfs_ioctl+0x7aa/0xee0 fs/ioctl.c:607
 [<ffffffff8155aedf>] SYSC_ioctl fs/ioctl.c:622 [inline]
 [<ffffffff8155aedf>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:613
 [<ffffffff81620ed8>] sg_ioctl_trans fs/compat_ioctl.c:352 [inline]
 [<ffffffff81620ed8>] do_ioctl_trans fs/compat_ioctl.c:1454 [inline]
 [<ffffffff81620ed8>] C_SYSC_ioctl fs/compat_ioctl.c:1605 [inline]
 [<ffffffff81620ed8>] compat_SyS_ioctl+0x2178/0x2540 fs/compat_ioctl.c:1544
 [<ffffffff81006d91>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d91>] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459
 [<ffffffff8377b2aa>] sysenter_flags_fixed+0xd/0x17
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 6331 Comm: syz-executor3 Not tainted 4.4.125-g38f41ec #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b5abb000 task.stack: ffff8800a1c10000
RIP: 0010:[<ffffffff81435041>]  [<ffffffff81435041>] __read_once_size include/linux/compiler.h:218 [inline]
RIP: 0010:[<ffffffff81435041>]  [<ffffffff81435041>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:[<ffffffff81435041>]  [<ffffffff81435041>] put_page_testzero include/linux/mm.h:357 [inline]
RIP: 0010:[<ffffffff81435041>]  [<ffffffff81435041>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
RSP: 0018:ffff8800a1c17a38  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff825bb1fb
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8800a1c17a48 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff10014382f24 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8800aca2c200 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f574fb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000009bc25000 CR3: 00000000adcb0000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff85731114 ffff8800aca2c358 ffff8800a1c17aa8 ffffffff825bb221
 ffff8800aca2c370 ffffed001594586b ffffed001594586e ffff8800aca2c368
 dead4ead00000000 ffff8800aca2c340 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff825bb221>] sg_remove_scat.isra.17+0x1c1/0x2d0 drivers/scsi/sg.c:1956
 [<ffffffff825bb5d6>] sg_finish_rem_req+0x2a6/0x320 drivers/scsi/sg.c:1839
 [<ffffffff825bb9bc>] sg_new_read+0x36c/0x420 drivers/scsi/sg.c:578
 [<ffffffff825bd35f>] sg_read+0x8cf/0x14d0 drivers/scsi/sg.c:466
 [<ffffffff8151d873>] __vfs_read+0x103/0x440 fs/read_write.c:432
 [<ffffffff8151f713>] vfs_read+0x123/0x3a0 fs/read_write.c:454
 [<ffffffff81522059>] SYSC_read fs/read_write.c:569 [inline]
 [<ffffffff81522059>] SyS_read+0xd9/0x1b0 fs/read_write.c:562
 [<ffffffff81006d91>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d91>] do_fast_syscall_32+0x321/0x8a0 arch/x86/entry/common.c:459
 [<ffffffff8377b2aa>] sysenter_flags_fixed+0xd/0x17
Code: c6 a0 0c 00 e9 78 fd ff ff 90 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 49 
RIP  [<ffffffff81435041>] __read_once_size include/linux/compiler.h:218 [inline]
RIP  [<ffffffff81435041>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP  [<ffffffff81435041>] put_page_testzero include/linux/mm.h:357 [inline]
RIP  [<ffffffff81435041>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
 RSP <ffff8800a1c17a38>
---[ end trace 443811c20b30d2f6 ]---