------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_journal_iter.c:83! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 9894 Comm: syz.0.516 Not tainted 6.14.0-rc3-syzkaller-00096-ge9a8cac0bf89 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:bch2_journal_keys_peek_max+0x164f/0x1660 fs/bcachefs/btree_journal_iter.c:83 Code: 10 48 8d 5c 08 18 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 2f 88 d9 fd 4c 8b 33 e9 d7 fe ff ff e8 22 d2 74 fd 90 <0f> 0b e8 0a 85 b3 07 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffc900032e6620 EFLAGS: 00010283 RAX: ffffffff844ce80e RBX: 0000000000000039 RCX: 0000000000080000 RDX: ffffc900107a9000 RSI: 0000000000022ccd RDI: 0000000000022cce RBP: ffffc900032e67e0 R08: ffffffff844cd305 R09: 0000000000000000 R10: 00000001ffffffff R11: 2000000000000000 R12: dffffc0000000000 R13: ffff888076680000 R14: ffffffffffffffff R15: ffffc900032e7018 FS: 00007f13c576e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0acc2cc000 CR3: 000000003548a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_btree_journal_peek fs/bcachefs/btree_iter.c:2137 [inline] btree_trans_peek_journal+0x342/0x5a0 fs/bcachefs/btree_iter.c:2166 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2303 [inline] bch2_btree_iter_peek_max+0x1502/0x6320 fs/bcachefs/btree_iter.c:2373 bch2_btree_iter_peek_slot+0xe0a/0x27c0 fs/bcachefs/btree_iter.c:2838 bch2_btree_iter_peek_prev_min+0x1f3/0x6390 fs/bcachefs/btree_iter.c:2612 __bch2_resume_logged_op_finsert+0xd5f/0x36b0 fs/bcachefs/io_misc.c:431 bch2_fcollapse_finsert+0x286/0x3b0 fs/bcachefs/io_misc.c:535 bchfs_fcollapse_finsert+0x3a8/0x630 fs/bcachefs/fs-io.c:594 bch2_fallocate_dispatch+0x3c9/0x540 vfs_fallocate+0x623/0x7a0 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/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f13c498d0a9 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:00007f13c576e038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f13c4ba5fa0 RCX: 00007f13c498d0a9 RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000006 RBP: 00007f13c4a0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f13c4ba5fa0 R15: 00007ffc292d1a28 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_journal_keys_peek_max+0x164f/0x1660 fs/bcachefs/btree_journal_iter.c:83 Code: 10 48 8d 5c 08 18 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 2f 88 d9 fd 4c 8b 33 e9 d7 fe ff ff e8 22 d2 74 fd 90 <0f> 0b e8 0a 85 b3 07 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffc900032e6620 EFLAGS: 00010283 RAX: ffffffff844ce80e RBX: 0000000000000039 RCX: 0000000000080000 RDX: ffffc900107a9000 RSI: 0000000000022ccd RDI: 0000000000022cce RBP: ffffc900032e67e0 R08: ffffffff844cd305 R09: 0000000000000000 R10: 00000001ffffffff R11: 2000000000000000 R12: dffffc0000000000 R13: ffff888076680000 R14: ffffffffffffffff R15: ffffc900032e7018 FS: 00007f13c576e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0acc2cc000 CR3: 000000003548a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400