=====================================================
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 crc32_le_base+0x5ac/0x1300 lib/crc32.c:197
 crc32_body lib/crc32.c:110 [inline]
 crc32_le_generic lib/crc32.c:179 [inline]
 crc32_le_base+0x5ac/0x1300 lib/crc32.c:197
 nilfs_segbuf_fill_in_segsum_crc fs/nilfs2/segbuf.c:182 [inline]
 nilfs_add_checksums_on_logs+0x34a/0xdd0 fs/nilfs2/segbuf.c:320
 nilfs_segctor_do_construct+0xb64d/0x10030 fs/nilfs2/segment.c:2076
 nilfs_segctor_construct+0x2e9/0x1080 fs/nilfs2/segment.c:2379
 nilfs_segctor_write_out fs/nilfs2/segment.c:2701 [inline]
 nilfs_segctor_destroy fs/nilfs2/segment.c:2734 [inline]
 nilfs_detach_log_writer+0x9a9/0x1360 fs/nilfs2/segment.c:2814
 nilfs_put_super+0x76/0x290 fs/nilfs2/super.c:468
 generic_shutdown_super+0x2ce/0x770 fs/super.c:492
 kill_block_super+0xc8/0x1c0 fs/super.c:1386
 deactivate_locked_super+0x10d/0x200 fs/super.c:332
 deactivate_super+0x1d7/0x1f0 fs/super.c:363
 cleanup_mnt+0x72b/0x800 fs/namespace.c:1291
 __cleanup_mnt+0x3f/0x50 fs/namespace.c:1298
 task_work_run+0x268/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x31a/0x3b0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x191/0x240 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2a/0x140 kernel/entry/common.c:296
 __do_fast_syscall_32+0xb1/0x100 arch/x86/entry/common.c:181
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was stored to memory at:
 nilfs_write_dat_node_binfo+0x18b/0x370 fs/nilfs2/segment.c:658
 nilfs_segctor_assign fs/nilfs2/segment.c:1629 [inline]
 nilfs_segctor_do_construct+0x838d/0x10030 fs/nilfs2/segment.c:2056
 nilfs_segctor_construct+0x2e9/0x1080 fs/nilfs2/segment.c:2379
 nilfs_segctor_write_out fs/nilfs2/segment.c:2701 [inline]
 nilfs_segctor_destroy fs/nilfs2/segment.c:2734 [inline]
 nilfs_detach_log_writer+0x9a9/0x1360 fs/nilfs2/segment.c:2814
 nilfs_put_super+0x76/0x290 fs/nilfs2/super.c:468
 generic_shutdown_super+0x2ce/0x770 fs/super.c:492
 kill_block_super+0xc8/0x1c0 fs/super.c:1386
 deactivate_locked_super+0x10d/0x200 fs/super.c:332
 deactivate_super+0x1d7/0x1f0 fs/super.c:363
 cleanup_mnt+0x72b/0x800 fs/namespace.c:1291
 __cleanup_mnt+0x3f/0x50 fs/namespace.c:1298
 task_work_run+0x268/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x31a/0x3b0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x191/0x240 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2a/0x140 kernel/entry/common.c:296
 __do_fast_syscall_32+0xb1/0x100 arch/x86/entry/common.c:181
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Local variable binfo.i.i created at:
 nilfs_segctor_update_payload_blocknr fs/nilfs2/segment.c:1562 [inline]
 nilfs_segctor_assign fs/nilfs2/segment.c:1629 [inline]
 nilfs_segctor_do_construct+0x78b7/0x10030 fs/nilfs2/segment.c:2056
 nilfs_segctor_construct+0x2e9/0x1080 fs/nilfs2/segment.c:2379

CPU: 0 PID: 5041 Comm: syz-executor.3 Not tainted 6.2.0-rc8-syzkaller-80999-g31b504f219a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
=====================================================