===================================================== BUG: KMSAN: uninit-value in crc32_body lib/crc32.c:110 [inline] BUG: KMSAN: uninit-value in crc32_le_generic lib/crc32.c:179 [inline] BUG: KMSAN: uninit-value in __crc32c_le_base+0x446/0xd80 lib/crc32.c:201 crc32_body lib/crc32.c:110 [inline] crc32_le_generic lib/crc32.c:179 [inline] __crc32c_le_base+0x446/0xd80 lib/crc32.c:201 chksum_update_arch+0x5b/0xd0 crypto/crc32c_generic.c:97 crypto_shash_update+0x79/0xa0 crypto/shash.c:52 csum_tree_block+0x35f/0x5d0 fs/btrfs/disk-io.c:96 btree_csum_one_bio+0x4d5/0xeb0 fs/btrfs/disk-io.c:294 btrfs_bio_csum fs/btrfs/bio.c:518 [inline] btrfs_submit_chunk fs/btrfs/bio.c:751 [inline] btrfs_submit_bbio+0x2258/0x2bf0 fs/btrfs/bio.c:792 write_one_eb+0x13fa/0x1570 fs/btrfs/extent_io.c:1774 submit_eb_page fs/btrfs/extent_io.c:1931 [inline] btree_write_cache_pages+0x1bec/0x2380 fs/btrfs/extent_io.c:1981 btree_writepages+0x84/0x270 fs/btrfs/disk-io.c:520 do_writepages+0x427/0xc30 mm/page-writeback.c:2708 __writeback_single_inode+0x103/0x1290 fs/fs-writeback.c:1680 writeback_sb_inodes+0xa34/0x1c20 fs/fs-writeback.c:1976 wb_writeback+0x4df/0xcb0 fs/fs-writeback.c:2156 wb_do_writeback fs/fs-writeback.c:2303 [inline] wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2343 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3317 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3398 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 Uninit was stored to memory at: memcpy_extent_buffer+0x1ec/0x930 fs/btrfs/extent_io.c:4039 memmove_extent_buffer+0x13e/0xae0 fs/btrfs/extent_io.c:4073 memmove_leaf_data fs/btrfs/ctree.c:84 [inline] setup_items_for_insert+0xd87/0x1b40 fs/btrfs/ctree.c:4285 btrfs_insert_empty_items+0x183/0x220 fs/btrfs/ctree.c:4360 btrfs_insert_empty_item fs/btrfs/ctree.h:688 [inline] insert_dir_log_key+0x142/0x400 fs/btrfs/tree-log.c:3566 log_delayed_deletions_full fs/btrfs/tree-log.c:6194 [inline] log_delayed_deletion_items+0x137f/0x1630 fs/btrfs/tree-log.c:6329 btrfs_log_inode+0x8585/0x8620 fs/btrfs/tree-log.c:6675 btrfs_log_all_parents+0xc27/0x11c0 fs/btrfs/tree-log.c:6851 btrfs_log_inode_parent+0x1aad/0x1c30 fs/btrfs/tree-log.c:7167 btrfs_log_dentry_safe+0x9a/0x100 fs/btrfs/tree-log.c:7206 btrfs_sync_file+0x1676/0x2180 fs/btrfs/file.c:1670 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] btrfs_do_write_iter+0xa29/0xb60 fs/btrfs/file.c:1407 btrfs_file_write_iter+0x38/0x50 fs/btrfs/file.c:1417 do_iter_readv_writev+0x88a/0xa30 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline] __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380 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 stored to memory at: memcpy_extent_buffer+0x1ec/0x930 fs/btrfs/extent_io.c:4039 memmove_extent_buffer+0x13e/0xae0 fs/btrfs/extent_io.c:4073 memmove_leaf_data fs/btrfs/ctree.c:84 [inline] setup_items_for_insert+0xd87/0x1b40 fs/btrfs/ctree.c:4285 btrfs_insert_empty_items+0x183/0x220 fs/btrfs/ctree.c:4360 insert_delayed_items_batch+0x52/0x390 fs/btrfs/tree-log.c:6046 log_delayed_insertion_items+0xa40/0xca0 fs/btrfs/tree-log.c:6149 btrfs_log_inode+0x84af/0x8620 fs/btrfs/tree-log.c:6671 btrfs_log_all_parents+0xc27/0x11c0 fs/btrfs/tree-log.c:6851 btrfs_log_inode_parent+0x1aad/0x1c30 fs/btrfs/tree-log.c:7167 btrfs_log_dentry_safe+0x9a/0x100 fs/btrfs/tree-log.c:7206 btrfs_sync_file+0x1676/0x2180 fs/btrfs/file.c:1670 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] btrfs_do_write_iter+0xa29/0xb60 fs/btrfs/file.c:1407 btrfs_file_write_iter+0x38/0x50 fs/btrfs/file.c:1417 do_iter_readv_writev+0x88a/0xa30 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline] __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380 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 stored to memory at: memcpy_extent_buffer+0x1ec/0x930 fs/btrfs/extent_io.c:4039 memmove_extent_buffer+0x13e/0xae0 fs/btrfs/extent_io.c:4073 memmove_leaf_data fs/btrfs/ctree.c:84 [inline] setup_items_for_insert+0xd87/0x1b40 fs/btrfs/ctree.c:4285 btrfs_insert_empty_items+0x183/0x220 fs/btrfs/ctree.c:4360 btrfs_insert_empty_item fs/btrfs/ctree.h:688 [inline] insert_dir_log_key+0x142/0x400 fs/btrfs/tree-log.c:3566 log_dir_items+0x837/0x2d70 fs/btrfs/tree-log.c:4000 log_directory_changes+0x137/0x750 fs/btrfs/tree-log.c:4103 btrfs_log_inode+0x820a/0x8620 fs/btrfs/tree-log.c:6668 btrfs_log_all_parents+0xc27/0x11c0 fs/btrfs/tree-log.c:6851 btrfs_log_inode_parent+0x1aad/0x1c30 fs/btrfs/tree-log.c:7167 btrfs_log_dentry_safe+0x9a/0x100 fs/btrfs/tree-log.c:7206 btrfs_sync_file+0x1676/0x2180 fs/btrfs/file.c:1670 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] btrfs_do_write_iter+0xa29/0xb60 fs/btrfs/file.c:1407 btrfs_file_write_iter+0x38/0x50 fs/btrfs/file.c:1417 do_iter_readv_writev+0x88a/0xa30 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline] __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380 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 stored to memory at: memcpy_extent_buffer+0x1ec/0x930 fs/btrfs/extent_io.c:4039 memmove_extent_buffer+0x13e/0xae0 fs/btrfs/extent_io.c:4073 memmove_leaf_data fs/btrfs/ctree.c:84 [inline] setup_items_for_insert+0xd87/0x1b40 fs/btrfs/ctree.c:4285 btrfs_insert_empty_items+0x183/0x220 fs/btrfs/ctree.c:4360 copy_items+0x164d/0x20e0 fs/btrfs/tree-log.c:4515 copy_inode_items_to_log fs/btrfs/tree-log.c:6019 [inline] btrfs_log_inode+0x516a/0x8620 fs/btrfs/tree-log.c:6612 btrfs_log_all_parents+0xc27/0x11c0 fs/btrfs/tree-log.c:6851 btrfs_log_inode_parent+0x1aad/0x1c30 fs/btrfs/tree-log.c:7167 btrfs_log_dentry_safe+0x9a/0x100 fs/btrfs/tree-log.c:7206 btrfs_sync_file+0x1676/0x2180 fs/btrfs/file.c:1670 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] btrfs_do_write_iter+0xa29/0xb60 fs/btrfs/file.c:1407 btrfs_file_write_iter+0x38/0x50 fs/btrfs/file.c:1417 do_iter_readv_writev+0x88a/0xa30 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline] __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380 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: __alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4776 alloc_pages_bulk_noprof+0x1a28/0x20b0 mm/page_alloc.c:4701 btrfs_alloc_page_array fs/btrfs/extent_io.c:635 [inline] alloc_eb_folio_array+0x19c/0x750 fs/btrfs/extent_io.c:659 alloc_extent_buffer+0x75a/0x3ba0 fs/btrfs/extent_io.c:3049 btrfs_find_create_tree_block+0x46/0x60 fs/btrfs/disk-io.c:614 btrfs_init_new_buffer fs/btrfs/extent-tree.c:5019 [inline] btrfs_alloc_tree_block+0x415/0x1990 fs/btrfs/extent-tree.c:5132 btrfs_alloc_log_tree_node fs/btrfs/disk-io.c:950 [inline] btrfs_add_log_tree+0x1b7/0x7a0 fs/btrfs/disk-io.c:998 start_log_trans fs/btrfs/tree-log.c:227 [inline] btrfs_log_inode_parent+0xa87/0x1c30 fs/btrfs/tree-log.c:7101 btrfs_log_dentry_safe+0x9a/0x100 fs/btrfs/tree-log.c:7206 btrfs_sync_file+0x1676/0x2180 fs/btrfs/file.c:1670 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] btrfs_do_write_iter+0xa29/0xb60 fs/btrfs/file.c:1407 btrfs_file_write_iter+0x38/0x50 fs/btrfs/file.c:1417 do_iter_readv_writev+0x88a/0xa30 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline] __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380 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: 1120 Comm: kworker/u8:6 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: writeback wb_workfn (flush-btrfs-1) =====================================================