jfs_flush_journal: synclist not empty
=====================================================
BUG: KMSAN: uninit-value in hex_dump_to_buffer+0xefb/0xf30 lib/hexdump.c:171
 hex_dump_to_buffer+0xefb/0xf30 lib/hexdump.c:171
 print_hex_dump+0x10d/0x330 lib/hexdump.c:276
 jfs_flush_journal+0x13ed/0x1670 fs/jfs/jfs_logmgr.c:1598
 lmLogShutdown+0xcd/0xc30 fs/jfs/jfs_logmgr.c:1643
 lmLogClose+0x422/0xc60 fs/jfs/jfs_logmgr.c:1460
 jfs_umount+0x4cf/0x720 fs/jfs/jfs_umount.c:114
 jfs_put_super+0x112/0x3d0 fs/jfs/super.c:194
 generic_shutdown_super+0x1ad/0x4b0 fs/super.c:642
 kill_block_super+0x42/0xd0 fs/super.c:1710
 deactivate_locked_super+0xc8/0x3c0 fs/super.c:473
 deactivate_super+0x12f/0x140 fs/super.c:506
 cleanup_mnt+0x6fb/0x780 fs/namespace.c:1435
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1442
 task_work_run+0x206/0x2b0 kernel/task_work.c:227
 resume_user_mode_work+0x105/0x160 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x7b/0xb0 kernel/entry/common.c:218
 do_syscall_64+0xe6/0x1b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 hex_dump_to_buffer+0xef4/0xf30 lib/hexdump.c:173
 print_hex_dump+0x10d/0x330 lib/hexdump.c:276
 jfs_flush_journal+0x13ed/0x1670 fs/jfs/jfs_logmgr.c:1598
 lmLogShutdown+0xcd/0xc30 fs/jfs/jfs_logmgr.c:1643
 lmLogClose+0x422/0xc60 fs/jfs/jfs_logmgr.c:1460
 jfs_umount+0x4cf/0x720 fs/jfs/jfs_umount.c:114
 jfs_put_super+0x112/0x3d0 fs/jfs/super.c:194
 generic_shutdown_super+0x1ad/0x4b0 fs/super.c:642
 kill_block_super+0x42/0xd0 fs/super.c:1710
 deactivate_locked_super+0xc8/0x3c0 fs/super.c:473
 deactivate_super+0x12f/0x140 fs/super.c:506
 cleanup_mnt+0x6fb/0x780 fs/namespace.c:1435
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1442
 task_work_run+0x206/0x2b0 kernel/task_work.c:227
 resume_user_mode_work+0x105/0x160 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x7b/0xb0 kernel/entry/common.c:218
 do_syscall_64+0xe6/0x1b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4167 [inline]
 slab_alloc_node mm/slub.c:4210 [inline]
 kmem_cache_alloc_noprof+0x81b/0xec0 mm/slub.c:4217
 mempool_alloc_slab+0x36/0x50 mm/mempool.c:559
 mempool_alloc_noprof+0xf9/0x540 mm/mempool.c:402
 alloc_metapage fs/jfs/jfs_metapage.c:182 [inline]
 __get_metapage+0xa0e/0x1730 fs/jfs/jfs_metapage.c:652
 diWrite+0x58f/0x2190 fs/jfs/jfs_imap.c:639
 txCommit+0xcc0/0x93d0 fs/jfs/jfs_txnmgr.c:1255
 jfs_create+0x124d/0x1380 fs/jfs/namei.c:156
 lookup_open fs/namei.c:3701 [inline]
 open_last_lookups fs/namei.c:3800 [inline]
 path_openat+0x2d44/0x6760 fs/namei.c:4036
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 5802 Comm: syz-executor Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================