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kernel BUG at fs/bcachefs/btree_journal_iter.c:83!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5346 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-12966-ga2cc6ff5ec8f #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:bch2_journal_keys_peek_max+0x166a/0x1680 fs/bcachefs/btree_journal_iter.c:83
Code: 1c 08 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 84 87 d2 fd 4c 8b 33 e9 d2 fe ff ff e8 f7 62 68 fd 90 <0f> 0b e8 4f 2c d5 07 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000d786620 EFLAGS: 00010283
RAX: ffffffff845af489 RBX: 000000000000003b RCX: 0000000000100000
RDX: ffffc9000f2ac000 RSI: 0000000000046a1f RDI: 0000000000046a20
RBP: ffffc9000d7867e0 R08: ffffffff845adf67 R09: 0000000000000000
R10: 00000001ffffffff R11: 2000000000000000 R12: dffffc0000000000
R13: ffff888053500000 R14: ffffffffffffffff R15: ffffc9000d787018
FS:  00007f6f5da4a6c0(0000) GS:ffff88808c599000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562800eed008 CR3: 0000000038746000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_btree_journal_peek fs/bcachefs/btree_iter.c:2115 [inline]
 btree_trans_peek_journal+0x350/0x5b0 fs/bcachefs/btree_iter.c:2144
 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2281 [inline]
 bch2_btree_iter_peek_max+0x1524/0x6370 fs/bcachefs/btree_iter.c:2351
 bch2_btree_iter_peek_slot+0xe1a/0x27e0 fs/bcachefs/btree_iter.c:2816
 bch2_btree_iter_peek_prev_min+0x1f5/0x63e0 fs/bcachefs/btree_iter.c:2590
 __bch2_resume_logged_op_finsert+0xd6c/0x3730 fs/bcachefs/io_misc.c:432
 bch2_fcollapse_finsert+0x289/0x3c0 fs/bcachefs/io_misc.c:536
 bchfs_fcollapse_finsert+0x3ac/0x600 fs/bcachefs/fs-io.c:595
 bch2_fallocate_dispatch+0x3f7/0x580 fs/bcachefs/fs-io.c:-1
 vfs_fallocate+0x627/0x7a0 fs/open.c:338
 ksys_fallocate fs/open.c:362 [inline]
 __do_sys_fallocate fs/open.c:367 [inline]
 __se_sys_fallocate fs/open.c:365 [inline]
 __x64_sys_fallocate+0xbc/0x110 fs/open.c:365
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f5cb8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6f5da4a038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f6f5cda6160 RCX: 00007f6f5cb8d169
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000006
RBP: 00007f6f5cc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000007000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6f5cda6160 R15: 00007ffecdc19158
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_journal_keys_peek_max+0x166a/0x1680 fs/bcachefs/btree_journal_iter.c:83
Code: 1c 08 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 84 87 d2 fd 4c 8b 33 e9 d2 fe ff ff e8 f7 62 68 fd 90 <0f> 0b e8 4f 2c d5 07 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000d786620 EFLAGS: 00010283
RAX: ffffffff845af489 RBX: 000000000000003b RCX: 0000000000100000
RDX: ffffc9000f2ac000 RSI: 0000000000046a1f RDI: 0000000000046a20
RBP: ffffc9000d7867e0 R08: ffffffff845adf67 R09: 0000000000000000
R10: 00000001ffffffff R11: 2000000000000000 R12: dffffc0000000000
R13: ffff888053500000 R14: ffffffffffffffff R15: ffffc9000d787018
FS:  00007f6f5da4a6c0(0000) GS:ffff88808c599000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ff240b440 CR3: 0000000038746000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400