===================================================== BUG: KMSAN: uninit-value in crc32_body lib/crc32.c:112 [inline] BUG: KMSAN: uninit-value in crc32_le_generic lib/crc32.c:179 [inline] BUG: KMSAN: uninit-value in __crc32c_le_base+0x467/0xd80 lib/crc32.c:201 crc32_body lib/crc32.c:112 [inline] crc32_le_generic lib/crc32.c:179 [inline] __crc32c_le_base+0x467/0xd80 lib/crc32.c:201 chksum_update+0x5b/0xd0 crypto/crc32c_generic.c:88 crypto_shash_update+0x75/0xa0 crypto/shash.c:74 crc32c+0xba/0x170 lib/libcrc32c.c:47 xlog_cksum fs/xfs/xfs_log.c:1833 [inline] xlog_sync+0xf66/0x11e0 fs/xfs/xfs_log.c:2078 xlog_state_release_iclog+0x3d0/0x7e0 fs/xfs/xfs_log.c:619 xlog_force_iclog fs/xfs/xfs_log.c:854 [inline] xlog_force_and_check_iclog fs/xfs/xfs_log.c:3139 [inline] xfs_log_force+0x9d3/0xf20 fs/xfs/xfs_log.c:3216 xfs_fs_sync_fs+0xa0/0x420 fs/xfs/xfs_super.c:783 sync_filesystem+0x2d3/0x3b0 fs/sync.c:66 generic_shutdown_super+0x8b/0x4b0 fs/super.c:625 kill_block_super+0x42/0xd0 fs/super.c:1680 xfs_kill_sb+0x20/0x60 fs/xfs/xfs_super.c:2021 deactivate_locked_super+0xdc/0x3e0 fs/super.c:477 deactivate_super+0x14b/0x160 fs/super.c:510 cleanup_mnt+0x6c4/0x730 fs/namespace.c:1267 __cleanup_mnt+0x22/0x30 fs/namespace.c:1274 task_work_run+0x263/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:108 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0xcc/0x160 kernel/entry/common.c:212 do_syscall_64+0x79/0x140 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was stored to memory at: xlog_write_iovec fs/xfs/xfs_log.c:2226 [inline] xlog_write_full fs/xfs/xfs_log.c:2261 [inline] xlog_write+0x1bcf/0x2110 fs/xfs/xfs_log.c:2530 xlog_cil_write_chain fs/xfs/xfs_log_cil.c:918 [inline] xlog_cil_push_work+0x2db7/0x3ff0 fs/xfs/xfs_log_cil.c:1263 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2706 worker_thread+0xf45/0x1490 kernel/workqueue.c:2787 kthread+0x3ed/0x540 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0x121/0x3c0 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] xlog_kvmalloc fs/xfs/xfs_log_priv.h:704 [inline] xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:343 [inline] xlog_cil_commit+0x44a/0x4850 fs/xfs/xfs_log_cil.c:1574 __xfs_trans_commit+0x777/0x16e0 fs/xfs/xfs_trans.c:1017 xfs_trans_commit+0x2f/0x40 fs/xfs/xfs_trans.c:1061 xfs_fileattr_set+0x1df8/0x20d0 fs/xfs/xfs_ioctl.c:1415 vfs_fileattr_set+0xff2/0x10a0 fs/ioctl.c:697 do_vfs_ioctl+0x3354/0x3b60 __do_sys_ioctl fs/ioctl.c:869 [inline] __se_sys_ioctl+0x14b/0x410 fs/ioctl.c:857 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5038 Comm: syz-executor.1 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 =====================================================