syzbot

bcachefs (loop4): shutting down
bcachefs (loop4): going read-only
bcachefs (loop4): finished waiting for writes to stop
bcachefs (loop4): flushing journal and stopping allocators, journal seq 11
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BUG: KMSAN: uninit-value in rw_aux_tree_insert_entry+0x557/0x970 fs/bcachefs/bset.c:904
 rw_aux_tree_insert_entry+0x557/0x970 fs/bcachefs/bset.c:904
 bch2_bset_fix_lookup_table+0xecc/0x13e0
 bch2_bset_insert+0x1621/0x19f0 fs/bcachefs/bset.c:1015
 bch2_btree_bset_insert_key+0xf4e/0x2b60 fs/bcachefs/btree_trans_commit.c:217
 bch2_btree_insert_key_leaf+0x276/0x1050 fs/bcachefs/btree_trans_commit.c:300
 bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:820 [inline]
 do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:900 [inline]
 __bch2_trans_commit+0xaf5e/0xd190 fs/bcachefs/btree_trans_commit.c:1121
 bch2_trans_commit fs/bcachefs/btree_update.h:184 [inline]
 btree_key_cache_flush_pos fs/bcachefs/btree_key_cache.c:432 [inline]
 bch2_btree_key_cache_journal_flush+0x1076/0x1900 fs/bcachefs/btree_key_cache.c:512
 journal_flush_pins+0xce6/0x1780 fs/bcachefs/journal_reclaim.c:565
 journal_flush_done+0xe1/0x3f0 fs/bcachefs/journal_reclaim.c:819
 bch2_journal_flush_pins+0xdb/0x3b0 fs/bcachefs/journal_reclaim.c:852
 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline]
 __bch2_fs_read_only+0x210/0xb40 fs/bcachefs/super.c:276
 bch2_fs_read_only+0xd2c/0x15d0 fs/bcachefs/super.c:356
 __bch2_fs_stop+0xf0/0xf10 fs/bcachefs/super.c:621
 bch2_put_super+0x3c/0x50 fs/bcachefs/fs.c:2050
 generic_shutdown_super+0x197/0x4c0 fs/super.c:642
 bch2_kill_sb+0x3d/0x70 fs/bcachefs/fs.c:2278
 deactivate_locked_super+0xe0/0x3f0 fs/super.c:473
 deactivate_super+0x14f/0x160 fs/super.c:506
 cleanup_mnt+0x6bb/0x730 fs/namespace.c:1373
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1380
 task_work_run+0x268/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xbf/0x160 kernel/entry/common.c:218
 do_syscall_64+0xda/0x1e0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 ___kmalloc_large_node+0x22c/0x370 mm/slub.c:4253
 __kmalloc_large_node_noprof+0x3f/0x1e0 mm/slub.c:4270
 __do_kmalloc_node mm/slub.c:4286 [inline]
 __kmalloc_node_noprof+0xc96/0x1250 mm/slub.c:4304
 __kvmalloc_node_noprof+0xc0/0x2d0 mm/util.c:645
 btree_bounce_alloc fs/bcachefs/btree_io.c:124 [inline]
 btree_node_sort+0x78a/0x1d30 fs/bcachefs/btree_io.c:323
 bch2_btree_post_write_cleanup+0x1b0/0xf20 fs/bcachefs/btree_io.c:2248
 bch2_btree_node_write+0x21c/0x2e0 fs/bcachefs/btree_io.c:2289
 btree_node_write_if_need fs/bcachefs/btree_io.h:151 [inline]
 __btree_node_flush+0x606/0x680 fs/bcachefs/btree_trans_commit.c:252
 bch2_btree_node_flush0+0x35/0x60 fs/bcachefs/btree_trans_commit.c:261
 journal_flush_pins+0xce6/0x1780 fs/bcachefs/journal_reclaim.c:565
 __bch2_journal_reclaim+0xda8/0x1670 fs/bcachefs/journal_reclaim.c:698
 bch2_journal_reclaim_thread+0x18e/0x760 fs/bcachefs/journal_reclaim.c:740
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

CPU: 0 UID: 0 PID: 5780 Comm: syz-executor Not tainted 6.13.0-rc6-syzkaller-00290-gbe548645527a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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