loop3: detected capacity change from 0 to 2048
NILFS (loop3): nilfs_get_block (ino=16): a race condition while inserting a data block at offset=7
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2786!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8586 Comm: syz-executor.3 Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:submit_bh_wbc+0x5aa/0x6f0 fs/buffer.c:2786
Code: e8 7b 2b 89 ff be 08 00 00 00 48 89 df e8 7e db df ff f0 80 63 01 fb e9 fe fb ff ff e8 5f 2b 89 ff 90 0f 0b e8 57 2b 89 ff 90 <0f> 0b e8 4f 2b 89 ff 90 0f 0b e8 47 2b 89 ff 90 0f 0b e8 3f 2b 89
RSP: 0018:ffffc90014d9f750 EFLAGS: 00010283
RAX: 000000000000d3a4 RBX: ffff88808700c488 RCX: ffffc9000ae51000
RDX: 0000000000040000 RSI: ffffffff81fe46f9 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000015ac30 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000c00
FS:  00007f62f23cd6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32024000 CR3: 000000005f220000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 submit_bh fs/buffer.c:2826 [inline]
 __bh_read+0xac/0x1f0 fs/buffer.c:3091
 bh_read_nowait include/linux/buffer_head.h:420 [inline]
 __block_write_begin_int+0x124a/0x1560 fs/buffer.c:2148
 __block_write_begin fs/buffer.c:2168 [inline]
 block_write_begin+0xb1/0x490 fs/buffer.c:2227
 nilfs_write_begin+0x9f/0x1a0 fs/nilfs2/inode.c:261
 generic_perform_write+0x278/0x600 mm/filemap.c:3927
 __generic_file_write_iter+0x1d0/0x240 mm/filemap.c:4018
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4048
 call_write_iter include/linux/fs.h:2020 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x7f0 fs/read_write.c:860
 vfs_writev+0x221/0x700 fs/read_write.c:933
 do_pwritev+0x1af/0x260 fs/read_write.c:1030
 __do_sys_pwritev2 fs/read_write.c:1089 [inline]
 __se_sys_pwritev2 fs/read_write.c:1080 [inline]
 __x64_sys_pwritev2+0xef/0x150 fs/read_write.c:1080
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f62f167cce9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f62f23cd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f62f179bf80 RCX: 00007f62f167cce9
RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007f62f16c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001f00 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f62f179bf80 R15: 00007fffab123278
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x5aa/0x6f0 fs/buffer.c:2786
Code: e8 7b 2b 89 ff be 08 00 00 00 48 89 df e8 7e db df ff f0 80 63 01 fb e9 fe fb ff ff e8 5f 2b 89 ff 90 0f 0b e8 57 2b 89 ff 90 <0f> 0b e8 4f 2b 89 ff 90 0f 0b e8 47 2b 89 ff 90 0f 0b e8 3f 2b 89
RSP: 0018:ffffc90014d9f750 EFLAGS: 00010283
RAX: 000000000000d3a4 RBX: ffff88808700c488 RCX: ffffc9000ae51000
RDX: 0000000000040000 RSI: ffffffff81fe46f9 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000015ac30 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000c00
FS:  00007f62f23cd6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b7439d988 CR3: 000000005f220000 CR4: 0000000000350ef0