random: nonblocking pool is initialized
kasan: CONFIG_KASAN_INLINE enabled
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: 0 PID: 3327 Comm: syzkaller523439 Not tainted 4.4.110-gdac1439 #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d1668000 task.stack: ffff8801d0610000
RIP: 0010:[<ffffffff814333e1>]  [<ffffffff814333e1>] __read_once_size include/linux/compiler.h:218 [inline]
RIP: 0010:[<ffffffff814333e1>]  [<ffffffff814333e1>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:[<ffffffff814333e1>]  [<ffffffff814333e1>] put_page_testzero include/linux/mm.h:357 [inline]
RIP: 0010:[<ffffffff814333e1>]  [<ffffffff814333e1>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
RSP: 0018:ffff8801d06179f0  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff825b9c5b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000002 RDI: dead4ead0000001c
RBP: ffff8801d0617a00 R08: 0000000048000000 R09: 0000000000001e30
R10: 0000000000002100 R11: 1ffff1003a0c2f1c R12: 0000000000000004
R13: 0000000000000020 R14: ffff8800aff40000 R15: dffffc0000000000
FS:  00000000022d6880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000204d7fa0 CR3: 00000001ccbc8000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000246 ffff8800aff40158 ffff8801d0617a60 ffffffff825b9c81
 ffff8800aff40170 ffffed0015fe802b ffffed0015fe802e ffff8800aff40168
 dead4ead00000000 ffff8800aff40140 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff825b9c81>] sg_remove_scat.isra.17+0x1c1/0x2d0 drivers/scsi/sg.c:1964
 [<ffffffff825ba045>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1846
 [<ffffffff825ba24d>] sg_new_read.isra.18+0x17d/0x3c0 drivers/scsi/sg.c:578
 [<ffffffff825bbd02>] sg_read+0x8c2/0x1490 drivers/scsi/sg.c:467
 [<ffffffff8151ca11>] do_loop_readv_writev+0x141/0x1e0 fs/read_write.c:680
 [<ffffffff8151ed6d>] do_readv_writev+0x5dd/0x6e0 fs/read_write.c:810
 [<ffffffff8151eee8>] vfs_readv+0x78/0xb0 fs/read_write.c:834
 [<ffffffff81521239>] SYSC_readv fs/read_write.c:860 [inline]
 [<ffffffff81521239>] SyS_readv+0xd9/0x240 fs/read_write.c:852
 [<ffffffff837755d9>] entry_SYSCALL_64_fastpath+0x16/0x92
Code: 96 a4 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  [<ffffffff814333e1>] __read_once_size include/linux/compiler.h:218 [inline]
RIP  [<ffffffff814333e1>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP  [<ffffffff814333e1>] put_page_testzero include/linux/mm.h:357 [inline]
RIP  [<ffffffff814333e1>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
 RSP <ffff8801d06179f0>
---[ end trace 711048aa7be463ee ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..