H
H
H
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: 17816 Comm: syz-executor6 Not tainted 4.9.58-gf108c7d #70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801cae19800 task.stack: ffff8801d0220000
RIP: 0010:[<ffffffff8144d9f1>] 
 [<ffffffff8144d9f1>] __read_once_size include/linux/compiler.h:243 [inline]
 [<ffffffff8144d9f1>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
 [<ffffffff8144d9f1>] page_ref_count include/linux/page_ref.h:66 [inline]
 [<ffffffff8144d9f1>] put_page_testzero include/linux/mm.h:445 [inline]
 [<ffffffff8144d9f1>] __free_pages+0x21/0x80 mm/page_alloc.c:3901
RSP: 0018:ffff8801d02279b0  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffc90003a71000
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801d02279c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801cae19800 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801cf254200 R15: dffffc0000000000
FS:  00007f55a463c700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000715388 CR3: 00000001c8aca000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801cae19800
 ffff8801cf254358 ffff8801d0227a20 ffffffff8265fcb1[  114.900251]  ffff8801cf254370
 ffffed0039e4a86b ffffed0039e4a86e ffff8801cf254368[  114.900262]  dead4ead00000000
 ffff8801cf254340 0000000000000000 0000000000000000[  114.900272] Call Trace:
 [<ffffffff8265fcb1>] sg_remove_scat.isra.20+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82660075>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82660139>] sg_new_read.isra.21+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff82661d16>] sg_read+0x8a6/0x1400 drivers/scsi/sg.c:456
 [<ffffffff8156a9f1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156e7b0>] do_loop_readv_writev fs/read_write.c:880 [inline]
 [<ffffffff8156e7b0>] do_readv_writev+0x520/0x750 fs/read_write.c:874
 [<ffffffff8156ea64>] vfs_readv+0x84/0xc0 fs/read_write.c:898
 [<ffffffff8156eb86>] do_readv+0xe6/0x250 fs/read_write.c:924
 [<ffffffff81572007>] SYSC_readv fs/read_write.c:1011 [inline]
 [<ffffffff81572007>] SyS_readv+0x27/0x30 fs/read_write.c:1008
 [<ffffffff838aa0c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Code: 
ff 66 0f 1f 84 00 00 00 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 [  114.900642] RIP 
 [<ffffffff8144d9f1>] __read_once_size include/linux/compiler.h:243 [inline]
 [<ffffffff8144d9f1>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
 [<ffffffff8144d9f1>] page_ref_count include/linux/page_ref.h:66 [inline]
 [<ffffffff8144d9f1>] put_page_testzero include/linux/mm.h:445 [inline]
 [<ffffffff8144d9f1>] __free_pages+0x21/0x80 mm/page_alloc.c:3901
---[ end trace 43a90d04be46d413 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..