NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ===================================================== 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_thread_construct fs/nilfs2/segment.c:2487 [inline] nilfs_segctor_thread+0xf31/0x16b0 fs/nilfs2/segment.c:2570 kthread+0x3c7/0x500 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 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_thread_construct fs/nilfs2/segment.c:2487 [inline] nilfs_segctor_thread+0xf31/0x16b0 fs/nilfs2/segment.c:2570 kthread+0x3c7/0x500 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 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: 1 PID: 6793 Comm: segctord Not tainted 6.2.0-syzkaller-81151-g224e1375d540 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================