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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+0x43c/0xd80 lib/crc32.c:197
 crc32_body lib/crc32.c:110 [inline]
 crc32_le_generic lib/crc32.c:179 [inline]
 crc32_le_base+0x43c/0xd80 lib/crc32.c:197
 nilfs_segbuf_fill_in_data_crc fs/nilfs2/segbuf.c:224 [inline]
 nilfs_add_checksums_on_logs+0xb2c/0xe70 fs/nilfs2/segbuf.c:327
 nilfs_segctor_do_construct+0x9f0d/0xe070 fs/nilfs2/segment.c:2113
 nilfs_segctor_construct+0x1eb/0xe30 fs/nilfs2/segment.c:2416
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2524 [inline]
 nilfs_segctor_thread+0xc3f/0x11d0 fs/nilfs2/segment.c:2607
 kthread+0x3e8/0x540 kernel/kthread.c:389
 ret_from_fork+0x57/0x80 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

Uninit was created at:
 __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4500
 alloc_pages+0xd01/0x1040
 folio_alloc+0x42/0x120 mm/mempolicy.c:2308
 filemap_alloc_folio+0xa5/0x430 mm/filemap.c:979
 __filemap_get_folio+0xa79/0x1450 mm/filemap.c:1938
 pagecache_get_page+0x4e/0x200 mm/folio-compat.c:99
 grab_cache_page_write_begin+0x55/0x70 mm/folio-compat.c:109
 block_write_begin+0x4f/0x450 fs/buffer.c:2235
 nilfs_write_begin+0xfc/0x200 fs/nilfs2/inode.c:261
 generic_perform_write+0x3fb/0xc50 mm/filemap.c:3928
 __generic_file_write_iter+0x20a/0x460 mm/filemap.c:4023
 generic_file_write_iter+0x103/0x5b0 mm/filemap.c:4049
 __kernel_write_iter+0x323/0xa40 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x593/0xce0 fs/coredump.c:915
 elf_core_dump+0x59e8/0x5c60 fs/binfmt_elf.c:2142
 do_coredump+0x32c8/0x4920 fs/coredump.c:764
 get_signal+0x2185/0x2bc0 kernel/signal.c:2867
 arch_do_signal_or_restart+0x4f/0x920 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop+0xe8/0x320 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x163/0x220 kernel/entry/common.c:204
 irqentry_exit_to_user_mode+0xd/0x30 kernel/entry/common.c:309
 irqentry_exit+0x16/0x40 kernel/entry/common.c:412
 exc_page_fault+0x494/0x680 arch/x86/mm/fault.c:1545
 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:570

CPU: 0 PID: 6616 Comm: segctord Not tainted 6.5.0-syzkaller-04008-geaf9f4649cf0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
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