jfs_flush_journal: synclist not empty
=====================================================
BUG: KMSAN: uninit-value in hex_dump_to_buffer+0x888/0x10f0 lib/hexdump.c:171
 hex_dump_to_buffer+0x888/0x10f0 lib/hexdump.c:171
 print_hex_dump+0x13d/0x3e0 lib/hexdump.c:276
 jfs_flush_journal+0x1415/0x15e0 fs/jfs/jfs_logmgr.c:1598
 jfs_umount+0x1e5/0x710 fs/jfs/jfs_umount.c:58
 jfs_put_super+0xf1/0x380 fs/jfs/super.c:194
 generic_shutdown_super+0x199/0x4b0 fs/super.c:696
 kill_block_super+0x42/0xd0 fs/super.c:1667
 deactivate_locked_super+0xdc/0x3e0 fs/super.c:484
 deactivate_super+0x14b/0x160 fs/super.c:517
 cleanup_mnt+0x6c4/0x730 fs/namespace.c:1256
 __cleanup_mnt+0x22/0x30 fs/namespace.c:1263
 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+0x2a2/0x320 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x163/0x220 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2a/0x140 kernel/entry/common.c:296
 __do_fast_syscall_32+0xb1/0x100 arch/x86/entry/common.c:233
 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:255
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:293
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a

Uninit was created at:
 slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768
 slab_alloc_node mm/slub.c:3478 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc+0x579/0xa90 mm/slub.c:3502
 mempool_alloc_slab+0x36/0x40 mm/mempool.c:518
 mempool_alloc+0xf4/0x520 mm/mempool.c:398
 alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
 __get_metapage+0xb37/0x18d0 fs/jfs/jfs_metapage.c:651
 diWrite+0x5ba/0x1f00 fs/jfs/jfs_imap.c:636
 txCommit+0xe52/0x8f30 fs/jfs/jfs_txnmgr.c:1255
 jfs_unlink+0xbc2/0x15b0 fs/jfs/namei.c:556
 vfs_unlink+0x66f/0xa20 fs/namei.c:4318
 do_unlinkat+0x823/0xe10 fs/namei.c:4382
 __do_sys_unlink fs/namei.c:4430 [inline]
 __se_sys_unlink fs/namei.c:4428 [inline]
 __ia32_sys_unlink+0x77/0xa0 fs/namei.c:4428
 do_syscall_32_irqs_on arch/x86/entry/common.c:164 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:230
 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:255
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:293
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a

CPU: 1 PID: 5038 Comm: syz-executor.3 Not tainted 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
=====================================================