kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3322 Comm: syzkaller765449 Not tainted 4.4.112-g3fc4284 #32
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d22e4740 task.stack: ffff8801d09c8000
RIP: 0010:[<ffffffff814339b1>]  [<ffffffff814339b1>] __read_once_size include/linux/compiler.h:218 [inline]
RIP: 0010:[<ffffffff814339b1>]  [<ffffffff814339b1>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:[<ffffffff814339b1>]  [<ffffffff814339b1>] put_page_testzero include/linux/mm.h:357 [inline]
RIP: 0010:[<ffffffff814339b1>]  [<ffffffff814339b1>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
RSP: 0018:ffff8801d09cf9f0  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff825ba47b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801d09cfa00 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff1003a139f1c R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801cea32100 R15: dffffc0000000000
FS:  0000000001470940(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002026b000 CR3: 00000001d0b68000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000246 ffff8801cea32258 ffff8801d09cfa60 ffffffff825ba4a1
 ffff8801cea32270 ffffed0039d4644b ffffed0039d4644e ffff8801cea32268
 dead4ead00000000 ffff8801cea32240 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff825ba4a1>] sg_remove_scat.isra.17+0x1c1/0x2d0 drivers/scsi/sg.c:1964
 [<ffffffff825ba865>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1846
 [<ffffffff825bac26>] sg_new_read.isra.18+0x336/0x3c0 drivers/scsi/sg.c:578
 [<ffffffff825bc522>] sg_read+0x8c2/0x1490 drivers/scsi/sg.c:467
 [<ffffffff8151d171>] do_loop_readv_writev+0x141/0x1e0 fs/read_write.c:680
 [<ffffffff8151f4cd>] do_readv_writev+0x5dd/0x6e0 fs/read_write.c:810
 [<ffffffff8151f648>] vfs_readv+0x78/0xb0 fs/read_write.c:834
 [<ffffffff81521999>] SYSC_readv fs/read_write.c:860 [inline]
 [<ffffffff81521999>] SyS_readv+0xd9/0x240 fs/read_write.c:852
 [<ffffffff837761d9>] entry_SYSCALL_64_fastpath+0x16/0x92
Code: 26 a6 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  [<ffffffff814339b1>] __read_once_size include/linux/compiler.h:218 [inline]
RIP  [<ffffffff814339b1>] atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP  [<ffffffff814339b1>] put_page_testzero include/linux/mm.h:357 [inline]
RIP  [<ffffffff814339b1>] __free_pages+0x21/0x90 mm/page_alloc.c:3365
 RSP <ffff8801d09cf9f0>
---[ end trace dac86b3a93d21354 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..