binder_alloc: binder_alloc_mmap_handler: 29608 20000000-20002000 already mapped failed -16
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: 1 PID: 29618 Comm: syz-executor2 Not tainted 4.9.80-g8a174b47 #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d96a8000 task.stack: ffff8801c6da0000
RIP: 0010:[<ffffffff826680cb>]  [<ffffffff826680cb>] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939
RSP: 0018:ffff8801c6da7a20  EFLAGS: 00010202
RAX: 1ffff100375c986d RBX: ffff8801bae4c358 RCX: 0000000000000002
RDX: 0000000000000010 RSI: ffffc90001afa000 RDI: ffff8801bae4a11c
RBP: ffff8801c6da7a70 R08: ffffed003af528e8 R09: ffff8801d7a94720
R10: 0000000000000005 R11: ffffed003af528e8 R12: 0000000000000002
R13: 0000000000000010 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fe1bd272700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071c000 CR3: 00000001b57a4000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801bae4c370 ffffed00375c986b ffffed00375c986e ffff8801bae4c368
 ffff8801bae4a100 ffff8801bae4c340 0000000000000000 0000000000000000
 0000000000000000 ffff8801bae4c438 ffff8801c6da7ab0 ffffffff826684d5
Call Trace:
 [<ffffffff826684d5>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1825
 [<ffffffff8266a366>] sg_read+0xa16/0x1440 drivers/scsi/sg.c:526
 [<ffffffff8156cca1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff81570b10>] do_loop_readv_writev fs/read_write.c:880 [inline]
 [<ffffffff81570b10>] do_readv_writev+0x520/0x750 fs/read_write.c:874
 [<ffffffff81570dc4>] vfs_readv+0x84/0xc0 fs/read_write.c:898
 [<ffffffff81570ee6>] do_readv+0xe6/0x250 fs/read_write.c:924
 [<ffffffff815743d7>] SYSC_readv fs/read_write.c:1011 [inline]
 [<ffffffff815743d7>] SyS_readv+0x27/0x30 fs/read_write.c:1008
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
Code: 45 b8 eb 3e e8 37 32 d0 fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 
RIP  [<ffffffff826680cb>] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939
 RSP <ffff8801c6da7a20>
---[ end trace 7b4031fe43ec66c0 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..