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BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list.part.0+0x4ac/0x5f0 fs/reiserfs/journal.c:231
Read of size 8 at addr ffffc90007725008 by task syz-executor.4/19430

CPU: 1 PID: 19430 Comm: syz-executor.4 Not tainted 6.4.0-rc7-syzkaller-00234-g547cc9be86f4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351
 print_report mm/kasan/report.c:462 [inline]
 kasan_report+0x11c/0x130 mm/kasan/report.c:572
 cleanup_bitmap_list.part.0+0x4ac/0x5f0 fs/reiserfs/journal.c:231
 cleanup_bitmap_list fs/reiserfs/journal.c:227 [inline]
 cleanup_freed_for_journal_list fs/reiserfs/journal.c:570 [inline]
 flush_commit_list.isra.0+0x114f/0x1e70 fs/reiserfs/journal.c:1142
 flush_journal_list.isra.0+0x24f/0x1f10 fs/reiserfs/journal.c:1391
 flush_used_journal_lists.isra.0+0x330/0x580 fs/reiserfs/journal.c:1829
 do_journal_end+0x33b8/0x4af0 fs/reiserfs/journal.c:4342
 do_journal_begin_r+0x9f5/0x10e0 fs/reiserfs/journal.c:3113
 journal_begin+0x166/0x400 fs/reiserfs/journal.c:3253
 reiserfs_remount+0x78f/0x1650 fs/reiserfs/super.c:1559
 legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
 reconfigure_super+0x40c/0xa30 fs/super.c:956
 do_remount fs/namespace.c:2701 [inline]
 path_mount+0x1846/0x1e40 fs/namespace.c:3361
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd74f48c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd7501e3168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd74f5abf80 RCX: 00007fd74f48c389
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd74f4d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002050824 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde412e58f R14: 00007fd7501e3300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90007725000, ffffc90007727000) created by:
 reiserfs_allocate_list_bitmaps+0x58/0x1d0 fs/reiserfs/journal.c:290

The buggy address belongs to the physical page:
page:ffffea0001b5ff80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x6d7fe
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 19430, tgid 19423 (syz-executor.4), ts 1912208978166, free_ts 1731356382171
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1731
 prep_new_page mm/page_alloc.c:1738 [inline]
 get_page_from_freelist+0xf41/0x2c00 mm/page_alloc.c:3502
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4768
 __alloc_pages_bulk+0x7e3/0x1360 mm/page_alloc.c:4716
 alloc_pages_bulk_array_mempolicy+0x1b7/0x360 mm/mempolicy.c:2374
 vm_area_alloc_pages mm/vmalloc.c:2974 [inline]
 __vmalloc_area_node mm/vmalloc.c:3085 [inline]
 __vmalloc_node_range+0xe69/0x14c0 mm/vmalloc.c:3266
 __vmalloc_node mm/vmalloc.c:3331 [inline]
 vzalloc+0x6b/0x80 mm/vmalloc.c:3404
 reiserfs_allocate_list_bitmaps+0x58/0x1d0 fs/reiserfs/journal.c:290
 journal_init+0x3d2/0x64b0 fs/reiserfs/journal.c:2733
 reiserfs_fill_super+0xc5b/0x2eb0 fs/reiserfs/super.c:2022
 mount_bdev+0x358/0x420 fs/super.c:1380
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x350 fs/super.c:1510
 do_new_mount fs/namespace.c:3039 [inline]
 path_mount+0x134b/0x1e40 fs/namespace.c:3369
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1302 [inline]
 free_unref_page_prepare+0x62e/0xcb0 mm/page_alloc.c:2564
 free_unref_page+0x33/0x370 mm/page_alloc.c:2659
 io_mem_free.part.0+0x1c3/0x210 io_uring/io_uring.c:2709
 io_mem_free io_uring/io_uring.c:2704 [inline]
 io_ring_ctx_free io_uring/io_uring.c:2873 [inline]
 io_ring_exit_work+0xe6a/0x14b0 io_uring/io_uring.c:3088
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2408
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2555
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Memory state around the buggy address:
 ffffc90007724f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90007724f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90007725000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                      ^
 ffffc90007725080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90007725100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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