BTRFS info (device loop0): using free space tree
BTRFS info (device loop0): enabling ssd optimizations
BTRFS info (device loop0): auto enabling async discard
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5030 at fs/read_write.c:504 __kernel_write_iter+0x69b/0x7c0
Modules linked in:
CPU: 1 PID: 5030 Comm: syz-executor508 Not tainted 6.6.0-rc3-syzkaller-00214-ge402b08634b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__kernel_write_iter+0x69b/0x7c0 fs/read_write.c:504
Code: 25 28 00 00 00 48 3b 84 24 e0 00 00 00 0f 85 2c 01 00 00 4c 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 65 1c 96 ff <0f> 0b 49 c7 c6 f7 ff ff ff eb a5 e8 55 1c 96 ff 4c 8b 74 24 18 eb
RSP: 0018:ffffc900038ff700 EFLAGS: 00010293
RAX: ffffffff81f7ee0b RBX: 00000000002a0001 RCX: ffff88801f160000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900038ff830 R08: ffffffff81f7e84c R09: 0000000000000000
R10: ffffc900038ff8a0 R11: fffff5200071ff19 R12: 1ffff9200071feec
R13: 1ffff11004e9919a R14: ffff8880274c8c80 R15: dffffc0000000000
FS:  0000555555d64380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc1f749c20 CR3: 000000002176c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __kernel_write fs/read_write.c:537 [inline]
 kernel_write+0x1d8/0x350 fs/read_write.c:558
 write_buf fs/btrfs/send.c:648 [inline]
 send_header fs/btrfs/send.c:766 [inline]
 send_subvol+0x1ab/0x49b0 fs/btrfs/send.c:7936
 btrfs_ioctl_send+0x2113/0x2750 fs/btrfs/send.c:8312
 _btrfs_ioctl_send+0x2ff/0x430 fs/btrfs/ioctl.c:4364
 btrfs_ioctl+0x90a/0xd40
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f95f39b2689
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcde0cd428 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffcde0cd5f8 RCX: 00007f95f39b2689
RDX: 0000000020000180 RSI: 0000000040489426 RDI: 0000000000000003
RBP: 00007f95f3a2a610 R08: 00007ffcde0cd5f8 R09: 00007ffcde0cd5f8
R10: 00007ffcde0cd5f8 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcde0cd5e8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>