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
Modules linked in:
CPU: 0 PID: 2043 Comm: syz-executor033 Not tainted 4.9.189+ #2
task: 000000009203bc05 task.stack: 0000000016452b3d
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] __read_once_size include/linux/compiler.h:264 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] compound_head include/linux/page-flags.h:145 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] get_page include/linux/mm.h:772 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] submit_page_section fs/direct-io.c:826 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] do_direct_IO fs/direct-io.c:1046 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] do_blockdev_direct_IO fs/direct-io.c:1275 [inline]
RIP: 0010:[<ffffffff815dc585>]  [<000000009d7ddf68>] __blockdev_direct_IO+0x1c55/0xd370 fs/direct-io.c:1361
RSP: 0018:ffff8801cf057310  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffea000713cc1c RCX: 000000000000000c
RDX: 04f6d4e33bcb18ca RSI: ffffffff815dc568 RDI: 27b6a719de58c650
RBP: ffff8801cf057650 R08: 0000000000000000 R09: ffff8801d3344400
R10: ffffed003a66888d R11: ffff8801d334446f R12: ffffea000713cc00
R13: ffffea000713cc00 R14: 0000000000000000 R15: ffff8801d6294000
FS:  00000000006fe880(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020011000 CR3: 00000001d0b1c000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff83cc8280 0000000000000003 1ffff1003a49bafd ffff8801d24dd7e8
 ffff8801d24dc740 ffff8801cf057440 edaece7796318000 0000000000001000
 ffff8801d6294079 ffff8801d24dc740 ffff8801d915e780 ffff880100000000
Call Trace:
 [<0000000035cf14fe>] ext4_direct_IO_write fs/ext4/inode.c:3504 [inline]
 [<0000000035cf14fe>] ext4_direct_IO+0xa1d/0x29b0 fs/ext4/inode.c:3660
 [<000000001adba5e5>] generic_file_direct_write+0x293/0x520 mm/filemap.c:2841
 [<00000000f5146a51>] __generic_file_write_iter+0x20f/0x530 mm/filemap.c:3021
 [<00000000f4bb6ad9>] ext4_file_write_iter+0x6e7/0xcd0 fs/ext4/file.c:165
 [<00000000d1ed6d97>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390
 [<0000000074da5f11>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768
 [<0000000094351513>] do_splice_from fs/splice.c:870 [inline]
 [<0000000094351513>] do_splice fs/splice.c:1166 [inline]
 [<0000000094351513>] SYSC_splice fs/splice.c:1416 [inline]
 [<0000000094351513>] SyS_splice+0xe02/0x14c0 fs/splice.c:1399
 [<00000000a132d623>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<000000002b2d8963>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: b2 91 e6 ff e9 b3 77 00 00 e8 08 5e d4 ff 48 8b 84 24 f8 00 00 00 48 8d 78 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 bc 96 00 00 48 8b 84 24 f8 00 00 00 4c 8b 68 
RIP  [<000000009d7ddf68>] __read_once_size include/linux/compiler.h:264 [inline]
RIP  [<000000009d7ddf68>] compound_head include/linux/page-flags.h:145 [inline]
RIP  [<000000009d7ddf68>] get_page include/linux/mm.h:772 [inline]
RIP  [<000000009d7ddf68>] submit_page_section fs/direct-io.c:826 [inline]
RIP  [<000000009d7ddf68>] do_direct_IO fs/direct-io.c:1046 [inline]
RIP  [<000000009d7ddf68>] do_blockdev_direct_IO fs/direct-io.c:1275 [inline]
RIP  [<000000009d7ddf68>] __blockdev_direct_IO+0x1c55/0xd370 fs/direct-io.c:1361
 RSP <ffff8801cf057310>
---[ end trace 42fc86c2fdce53a5 ]---