EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 156 with error 28
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EXT4-fs (loop1): This should not happen!! Data will be lost
BUG: KASAN: stack-out-of-bounds in iov_iter_revert lib/iov_iter.c:919 [inline]
BUG: KASAN: stack-out-of-bounds in iov_iter_revert+0x800/0x900 lib/iov_iter.c:868
Read of size 8 at addr ffff888044b67c98 by task syz-executor.0/10766

EXT4-fs (loop4): This should not happen!! Data will be lost

CPU: 0 PID: 10766 Comm: syz-executor.0 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430
 iov_iter_revert lib/iov_iter.c:919 [inline]
 iov_iter_revert+0x800/0x900 lib/iov_iter.c:868
EXT4-fs (loop1): Total free blocks count 0
 iomap_dio_rw+0xaac/0xd20 fs/iomap.c:1062
EXT4-fs (loop1): Free/Dirty block details
 xfs_file_dio_aio_read+0x150/0x460 fs/xfs/xfs_file.c:220
 xfs_file_read_iter+0x3a9/0x4f0 fs/xfs/xfs_file.c:293
 call_read_iter include/linux/fs.h:1774 [inline]
 aio_read+0x25d/0x390 fs/aio.c:1528
 io_submit_one fs/aio.c:1638 [inline]
 do_io_submit+0xdeb/0x1570 fs/aio.c:1709
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
EXT4-fs (loop4): Total free blocks count 0
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f63f2b620d9
RSP: 002b:00007f63f10d4168 EFLAGS: 00000246
EXT4-fs (loop4): Free/Dirty block details
 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007f63f2c81f80 RCX: 00007f63f2b620d9
RDX: 0000000020001d00 RSI: 0000000000000003 RDI: 00007f63f2c65000
RBP: 00007f63f2bbdae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffec64211f R14: 00007f63f10d4300 R15: 0000000000022000

EXT4-fs (loop4): free_blocks=2415919104
The buggy address belongs to the page:
page:ffffea000112d9c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0xfff00000000000()
raw: 00fff00000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: 0000000000000000 0000000100000001 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888044b67b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888044b67c00: f1 f1 f1 f1 00 00 00 f2 f2 f2 00 00 00 00 00 f2
>ffff888044b67c80: f2 f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00 00
                            ^
 ffff888044b67d00: 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00
 ffff888044b67d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
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