bcachefs (loop4): going read-write
bcachefs (loop4): journal_replay...
=====================================================
BUG: KMSAN: uninit-value in bch2_bkey_cmp_packed_inlined+0x8d0/0xd50 fs/bcachefs/bkey_cmp.h:115
 bch2_bkey_cmp_packed_inlined+0x8d0/0xd50 fs/bcachefs/bkey_cmp.h:115
 bch2_sort_keys_keep_unwritten_whiteouts+0xf94/0x19d0 fs/bcachefs/bkey_sort.c:184
 __bch2_btree_node_write+0x3ae8/0x6830 fs/bcachefs/btree_io.c:2094
 bch2_btree_node_write+0xa5/0x2e0 fs/bcachefs/btree_io.c:2283
 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
 journal_flush_done+0x156/0x3f0 fs/bcachefs/journal_reclaim.c:822
 bch2_journal_flush_pins+0x1a1/0x3b0 fs/bcachefs/journal_reclaim.c:852
 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline]
 bch2_journal_replay+0x4917/0x4d10 fs/bcachefs/recovery.c:383
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:185 [inline]
 bch2_run_recovery_passes+0xaa6/0xf10 fs/bcachefs/recovery_passes.c:232
 bch2_fs_recovery+0x42d2/0x5c60 fs/bcachefs/recovery.c:859
 bch2_fs_start+0x7b2/0xbd0 fs/bcachefs/super.c:1037
 bch2_fs_get_tree+0x13ea/0x22d0 fs/bcachefs/fs.c:2071
 vfs_get_tree+0xb1/0x5a0 fs/super.c:1800
 do_new_mount+0x71f/0x15e0 fs/namespace.c:3507
 path_mount+0x742/0x1f10 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount+0x722/0x810 fs/namespace.c:4032
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:4032
 ia32_sys_call+0x2530/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:22
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 ___kmalloc_large_node+0x22c/0x370 mm/slub.c:4220
 __kmalloc_large_node_noprof+0x3f/0x1e0 mm/slub.c:4237
 __do_kmalloc_node mm/slub.c:4253 [inline]
 __kmalloc_node_noprof+0x9d6/0xf50 mm/slub.c:4271
 __kvmalloc_node_noprof+0xc0/0x2d0 mm/util.c:658
 btree_bounce_alloc fs/bcachefs/btree_io.c:124 [inline]
 bch2_btree_node_read_done+0x52a9/0x7810 fs/bcachefs/btree_io.c:1192
 btree_node_read_work+0x973/0x1960 fs/bcachefs/btree_io.c:1323
 bch2_btree_node_read+0x2e6b/0x36e0
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1749 [inline]
 bch2_btree_root_read+0xb3b/0xe20 fs/bcachefs/btree_io.c:1771
 read_btree_roots+0x51c/0x1250 fs/bcachefs/recovery.c:523
 bch2_fs_recovery+0x422c/0x5c60 fs/bcachefs/recovery.c:851
 bch2_fs_start+0x7b2/0xbd0 fs/bcachefs/super.c:1037
 bch2_fs_get_tree+0x13ea/0x22d0 fs/bcachefs/fs.c:2071
 vfs_get_tree+0xb1/0x5a0 fs/super.c:1800
 do_new_mount+0x71f/0x15e0 fs/namespace.c:3507
 path_mount+0x742/0x1f10 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount+0x722/0x810 fs/namespace.c:4032
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:4032
 ia32_sys_call+0x2530/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:22
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 10136 Comm: syz.4.1314 Tainted: G        W          6.11.0-syzkaller-11993-g3efc57369a0c #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================