BTRFS info (device loop0): enabling ssd optimizations BTRFS info (device loop0): auto enabling async discard BTRFS info (device loop0): checking UUID tree ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5295 at fs/read_write.c:504 __kernel_write_iter+0x5a8/0x730 fs/read_write.c:504 Modules linked in: CPU: 0 PID: 5295 Comm: syz-executor789 Not tainted 6.1.0-rc6-next-20221125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__kernel_write_iter+0x5a8/0x730 fs/read_write.c:504 Code: 8c e8 5c a0 dd 07 31 ff 89 c3 89 c6 e8 a1 b4 a3 ff 85 db 0f 85 b6 61 e5 07 49 c7 c6 ea ff ff ff e9 11 ff ff ff e8 d8 b7 a3 ff <0f> 0b 49 c7 c6 f7 ff ff ff e9 fe fe ff ff e8 c5 b7 a3 ff 4c 89 ea RSP: 0018:ffffc90003b9f6d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000000a801d RCX: 0000000000000000 RDX: ffff8880180057c0 RSI: ffffffff81dd11e8 RDI: 0000000000000005 RBP: 1ffff92000773edc R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 1ffffffff214b39f R12: ffff8880222e3400 R13: ffff8880222e347c R14: 0000000000000000 R15: ffff8880291c3808 FS: 0000555556ae3300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc223bfc58 CR3: 000000001e071000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kernel_write fs/read_write.c:537 [inline] kernel_write fs/read_write.c:558 [inline] kernel_write+0x1c1/0x630 fs/read_write.c:548 write_buf fs/btrfs/send.c:638 [inline] send_header fs/btrfs/send.c:756 [inline] send_subvol fs/btrfs/send.c:7909 [inline] btrfs_ioctl_send+0x23e6/0x65a0 fs/btrfs/send.c:8278 _btrfs_ioctl_send+0x231/0x2e0 fs/btrfs/ioctl.c:4343 btrfs_ioctl+0x4058/0x5870 fs/btrfs/ioctl.c:4634 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f527f903b49 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe9a0e7ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f527f903b49 RDX: 00000000200003c0 RSI: 0000000040489426 RDI: 0000000000000003 RBP: 00007f527f8c3410 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000051af R11: 0000000000000246 R12: 00007f527f8c34a0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000