jfs_flush_journal: synclist not empty
=====================================================
BUG: KMSAN: uninit-value in hex_dump_to_buffer+0x888/0x1100 lib/hexdump.c:171
 hex_dump_to_buffer+0x888/0x1100 lib/hexdump.c:171
 print_hex_dump+0x13d/0x3e0 lib/hexdump.c:276
 jfs_flush_journal+0x141b/0x15e0 fs/jfs/jfs_logmgr.c:1598
 jfs_umount+0x1e5/0x720 fs/jfs/jfs_umount.c:58
 jfs_put_super+0xf1/0x390 fs/jfs/super.c:194
 generic_shutdown_super+0x197/0x4c0 fs/super.c:642
 kill_block_super+0x42/0xd0 fs/super.c:1710
 deactivate_locked_super+0xe0/0x3f0 fs/super.c:473
 deactivate_super+0x14f/0x160 fs/super.c:506
 cleanup_mnt+0x6bb/0x730 fs/namespace.c:1373
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1380
 task_work_run+0x268/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 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+0xbf/0x160 kernel/entry/common.c:218
 __do_fast_syscall_32+0xc0/0x110 arch/x86/entry/common.c:389
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4125 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4175
 mempool_alloc_slab+0x36/0x50 mm/mempool.c:559
 mempool_alloc_noprof+0xfa/0x530 mm/mempool.c:402
 alloc_metapage fs/jfs/jfs_metapage.c:182 [inline]
 __get_metapage+0x9c2/0x1630 fs/jfs/jfs_metapage.c:652
 dtSplitRoot+0x299/0x1f70 fs/jfs/jfs_dtree.c:1909
 dtSplitUp fs/jfs/jfs_dtree.c:992 [inline]
 dtInsert+0x1043/0x9bc0 fs/jfs/jfs_dtree.c:870
 jfs_create+0xae0/0x1310 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3649 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x2e9e/0x6200 fs/namei.c:3984
 do_filp_open+0x268/0x600 fs/namei.c:4014
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_creat fs/open.c:1495 [inline]
 __se_sys_creat fs/open.c:1489 [inline]
 __ia32_sys_creat+0xe4/0x140 fs/open.c:1489
 ia32_sys_call+0x38cf/0x4180 arch/x86/include/generated/asm/syscalls_32.h:9
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 9333 Comm: syz-executor Not tainted 6.13.0-rc6-syzkaller-00262-gb62cef9a5c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================