EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
audit: type=1800 audit(1652138508.698:2): pid=7952 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor905" name="bus" dev="loop0" ino=17 res=0
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2847!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7952 Comm: syz-executor905 Not tainted 4.14.277-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a1eb25c0 task.stack: ffff888095ee8000
RIP: 0010:ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2847
RSP: 0018:ffff888095eef638 EFLAGS: 00010297
RAX: ffff8880a1eb25c0 RBX: 00000000a802c010 RCX: 1ffff110143d66b9
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880a1eb35c8
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000001c16
R10: 0000000000000001 R11: ffff8880a1eb25c0 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88809e6e9830 R15: ffff888095eefa60
FS:  0000555557167300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cdade67160 CR3: 0000000099ce5000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0xc3/0x240 mm/page-writeback.c:2361
 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346
 file_write_and_wait_range+0x86/0xd0 mm/filemap.c:678
 __generic_file_fsync+0x70/0x190 fs/libfs.c:985
 ext4_sync_file+0x8ed/0x12c0 fs/ext4/fsync.c:118
 vfs_fsync_range+0x103/0x260 fs/sync.c:196
 generic_write_sync include/linux/fs.h:2684 [inline]
 ext4_file_write_iter+0x5fa/0xd20 fs/ext4/file.c:281
 call_write_iter include/linux/fs.h:1780 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f541d5a9089
RSP: 002b:00007ffe32011ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f541d5a9089
RDX: 0000000000000016 RSI: 0000000020002580 RDI: 0000000000000007
RBP: 00007f541d568920 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f541d5689b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: ff ff 4c 89 ff e8 45 cf c3 ff e9 98 db ff ff e8 1b 17 9a ff 48 8b bc 24 b8 00 00 00 e8 2e 76 b1 ff e9 18 f5 ff ff e8 04 17 9a ff <0f> 0b e8 fd 16 9a ff 48 8b bc 24 b8 00 00 00 e8 10 76 b1 ff 8b 
RIP: ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2847 RSP: ffff888095eef638
---[ end trace 2d54ca75734415cd ]---