kasan: CONFIG_KASAN_INLINE enabled
BUG: spinlock bad magic on CPU#1, syz-executor2/10896
 lock: 0xffff8801d03a8018, .magic: dead4eac, .owner: <none>/-1, .owner_cpu: -1
CPU: 1 PID: 10896 Comm: syz-executor2 Not tainted 4.9.90-gdd1e37e #66
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d8467720 ffffffff81d94ee9 ffff8801d03a8018 ffff8801b8a4e000
 0000000000000018 ffff8801d03a8018 ffffffff82667380 ffff8801d8467760
 ffffffff8124766d ffffffff81222e8f ffff880100000000 ffffed0000000000
Call Trace:
 [<ffffffff81d94ee9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94ee9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8124766d>] spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67
 [<ffffffff812479a4>] spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 [<ffffffff812479a4>] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
 [<ffffffff812479a4>] do_raw_spin_lock+0x174/0x1e0 kernel/locking/spinlock_debug.c:112
 [<ffffffff838b8306>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 [<ffffffff838b8306>] _raw_spin_lock_irqsave+0x56/0x70 kernel/locking/spinlock.c:159
 [<ffffffff81222e8f>] add_wait_queue+0x3f/0xa0 kernel/sched/wait.c:28
 [<ffffffff815b0551>] __pollwait+0x2b1/0x400 fs/select.c:232
 [<ffffffff8266744b>] poll_wait include/linux/poll.h:45 [inline]
 [<ffffffff8266744b>] sg_poll+0xcb/0x340 drivers/scsi/sg.c:1162
 [<ffffffff815b3c3d>] do_pollfd fs/select.c:781 [inline]
 [<ffffffff815b3c3d>] do_poll fs/select.c:831 [inline]
 [<ffffffff815b3c3d>] do_sys_poll+0x53d/0xcb0 fs/select.c:925
 [<ffffffff815b4b7f>] SYSC_ppoll fs/select.c:1034 [inline]
 [<ffffffff815b4b7f>] SyS_ppoll+0x1cf/0x400 fs/select.c:1005
 [<ffffffff81006504>] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b8493>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
sd 0:0:1:0: [sg0] tag#136 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#136 CDB: Test Unit Ready
sd 0:0:1:0: [sg0] tag#136 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#136 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#136 CDB[20]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[40]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[50]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[60]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[70]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[80]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[90]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[a0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[b0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[c0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[d0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#136 CDB[e0]: 00 00 00 00 00
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: 10895 Comm: syz-executor6 Not tainted 4.9.90-gdd1e37e #66
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b8a4b000 task.stack: ffff8801b8b38000
RIP: 0010:[<ffffffff8144df91>]  [<ffffffff8144df91>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144df91>]  [<ffffffff8144df91>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144df91>]  [<ffffffff8144df91>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144df91>]  [<ffffffff8144df91>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144df91>]  [<ffffffff8144df91>] __free_pages+0x21/0x80 mm/page_alloc.c:3897
RSP: 0018:ffff8801b8b3fa58  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff8266905b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801b8b3fa68 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8801b8a4b000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801b1e8a100 R15: dffffc0000000000
FS:  00007f3dd9e91700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000120 CR3: 00000001c8cd2000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000001 ffff8801b1e8a258 ffff8801b8b3fac8 ffffffff82669081
 ffff8801b1e8a270 ffffed00363d144b ffffed00363d144e ffff8801b1e8a268
 dead4ead00000000 ffff8801b1e8a240 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82669081>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1946
 [<ffffffff82669436>] sg_finish_rem_req+0x2a6/0x320 drivers/scsi/sg.c:1829
 [<ffffffff8266983c>] sg_new_read+0x38c/0x440 drivers/scsi/sg.c:567
 [<ffffffff8266b1c5>] sg_read+0x8c5/0x1470 drivers/scsi/sg.c:455
 [<ffffffff8156b3f3>] __vfs_read+0x103/0x670 fs/read_write.c:449
 [<ffffffff8156f30e>] vfs_read+0x11e/0x380 fs/read_write.c:472
 [<ffffffff81573009>] SYSC_read fs/read_write.c:588 [inline]
 [<ffffffff81573009>] SyS_read+0xd9/0x1b0 fs/read_write.c:581
 [<ffffffff81006504>] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b8493>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
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  [<ffffffff8144df91>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144df91>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144df91>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144df91>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144df91>] __free_pages+0x21/0x80 mm/page_alloc.c:3897
 RSP <ffff8801b8b3fa58>
---[ end trace e4bb8a0d11e8d6bd ]---