bcachefs (loop7): going read-only
bcachefs (loop7): finished waiting for writes to stop
bcachefs (loop7): flushing journal and stopping allocators, journal seq 11
=====================================================
BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x55b/0x6c0 fs/bcachefs/inode.c:509
 bch2_inode_v3_validate+0x55b/0x6c0 fs/bcachefs/inode.c:509
 bch2_bkey_val_validate+0x357/0x530 fs/bcachefs/bkey_methods.c:143
 btree_node_bkey_val_validate fs/bcachefs/btree_io.c:838 [inline]
 bset_key_validate fs/bcachefs/btree_io.c:859 [inline]
 validate_bset_keys+0x2048/0x22b0 fs/bcachefs/btree_io.c:942
 validate_bset_for_write+0x2b3/0x410 fs/bcachefs/btree_io.c:1987
 __bch2_btree_node_write+0x5436/0x6870 fs/bcachefs/btree_io.c:2197
 bch2_btree_node_write_trans+0xd7/0x890 fs/bcachefs/btree_io.c:2357
 btree_node_write_if_need fs/bcachefs/btree_io.h:153 [inline]
 __btree_node_flush+0x5e6/0x660 fs/bcachefs/btree_trans_commit.c:252
 bch2_btree_node_flush1+0x38/0x60 fs/bcachefs/btree_trans_commit.c:266
 journal_flush_pins+0x1335/0x1f90 fs/bcachefs/journal_reclaim.c:589
 journal_flush_pins_or_still_flushing fs/bcachefs/journal_reclaim.c:861 [inline]
 journal_flush_done+0x157/0xe40 fs/bcachefs/journal_reclaim.c:879
 bch2_journal_flush_pins+0x1a1/0x3b0 fs/bcachefs/journal_reclaim.c:911
 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+0xdfc/0x16a0 fs/bcachefs/super.c:356
 __bch2_fs_stop+0xf0/0xf10 fs/bcachefs/super.c:634
 bch2_put_super+0x3c/0x50 fs/bcachefs/fs.c:2083
 generic_shutdown_super+0x197/0x4c0 fs/super.c:642
 bch2_kill_sb+0x3d/0x70 fs/bcachefs/fs.c:2312
 deactivate_locked_super+0xe0/0x3f0 fs/super.c:473
 deactivate_super+0x14f/0x160 fs/super.c:506
 cleanup_mnt+0x6bf/0x740 fs/namespace.c:1413
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1420
 task_work_run+0x268/0x310 kernel/task_work.c:227
 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 stored to memory at:
 memcpy_u64s_small fs/bcachefs/util.h:416 [inline]
 bkey_p_copy fs/bcachefs/bkey.h:40 [inline]
 bch2_sort_keys_keep_unwritten_whiteouts+0x1593/0x1840 fs/bcachefs/bkey_sort.c:187
 __bch2_btree_node_write+0x3b3f/0x6870 fs/bcachefs/btree_io.c:2140
 bch2_btree_node_write_trans+0xd7/0x890 fs/bcachefs/btree_io.c:2357
 btree_node_write_if_need fs/bcachefs/btree_io.h:153 [inline]
 __btree_node_flush+0x5e6/0x660 fs/bcachefs/btree_trans_commit.c:252
 bch2_btree_node_flush1+0x38/0x60 fs/bcachefs/btree_trans_commit.c:266
 journal_flush_pins+0x1335/0x1f90 fs/bcachefs/journal_reclaim.c:589
 journal_flush_pins_or_still_flushing fs/bcachefs/journal_reclaim.c:861 [inline]
 journal_flush_done+0x157/0xe40 fs/bcachefs/journal_reclaim.c:879
 bch2_journal_flush_pins+0x1a1/0x3b0 fs/bcachefs/journal_reclaim.c:911
 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+0xdfc/0x16a0 fs/bcachefs/super.c:356
 __bch2_fs_stop+0xf0/0xf10 fs/bcachefs/super.c:634
 bch2_put_super+0x3c/0x50 fs/bcachefs/fs.c:2083
 generic_shutdown_super+0x197/0x4c0 fs/super.c:642
 bch2_kill_sb+0x3d/0x70 fs/bcachefs/fs.c:2312
 deactivate_locked_super+0xe0/0x3f0 fs/super.c:473
 deactivate_super+0x14f/0x160 fs/super.c:506
 cleanup_mnt+0x6bf/0x740 fs/namespace.c:1413
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1420
 task_work_run+0x268/0x310 kernel/task_work.c:227
 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:4249
 __kmalloc_large_node_noprof+0x3f/0x1e0 mm/slub.c:4266
 __do_kmalloc_node mm/slub.c:4282 [inline]
 __kmalloc_node_noprof+0xc96/0x1250 mm/slub.c:4300
 __kvmalloc_node_noprof+0xc0/0x2d0 mm/util.c:662
 btree_bounce_alloc fs/bcachefs/btree_io.c:123 [inline]
 btree_node_sort+0x78a/0x1d30 fs/bcachefs/btree_io.c:322
 bch2_btree_post_write_cleanup+0x1b0/0xf80 fs/bcachefs/btree_io.c:2293
 bch2_btree_node_write_trans+0x27f/0x890 fs/bcachefs/btree_io.c:2362
 btree_node_write_if_need fs/bcachefs/btree_io.h:153 [inline]
 __btree_node_flush+0x5e6/0x660 fs/bcachefs/btree_trans_commit.c:252
 bch2_btree_node_flush0+0x35/0x60 fs/bcachefs/btree_trans_commit.c:261
 journal_flush_pins+0x1335/0x1f90 fs/bcachefs/journal_reclaim.c:589
 __bch2_journal_reclaim+0xda8/0x1670 fs/bcachefs/journal_reclaim.c:722
 bch2_journal_reclaim_thread+0x17f/0x750 fs/bcachefs/journal_reclaim.c:764
 kthread+0x6b9/0xef0 kernel/kthread.c:464
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

CPU: 1 UID: 0 PID: 6755 Comm: syz-executor Not tainted 6.14.0-rc6-syzkaller-00145-g695caca9345a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
=====================================================