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BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231
Read of size 8 at addr ffffc9000ecd1008 by task syz-executor.1/6017

CPU: 0 PID: 6017 Comm: syz-executor.1 Not tainted 6.6.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x175/0x1b0 mm/kasan/report.c:588
 cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231
 cleanup_freed_for_journal_list fs/reiserfs/journal.c:570 [inline]
 flush_commit_list+0x12a1/0x1bf0 fs/reiserfs/journal.c:1142
 flush_journal_list+0x2a8/0x1c70 fs/reiserfs/journal.c:1391
 flush_used_journal_lists+0x1256/0x15d0 fs/reiserfs/journal.c:1829
 do_journal_end+0x39f7/0x4770
 do_journal_begin_r+0x970/0x1020
 journal_begin+0x14c/0x360 fs/reiserfs/journal.c:3260
 reiserfs_fill_super+0x1853/0x2620 fs/reiserfs/super.c:2104
 mount_bdev+0x237/0x300 fs/super.c:1629
 legacy_get_tree+0xef/0x190 fs/fs_context.c:662
 vfs_get_tree+0x8c/0x280 fs/super.c:1750
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1dd6a7e1ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1dd78a5ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1dd78a5f80 RCX: 00007f1dd6a7e1ea
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007f1dd78a5f40
RBP: 0000000020000000 R08: 00007f1dd78a5f80 R09: 000000000000c042
R10: 000000000000c042 R11: 0000000000000202 R12: 0000000020000040
R13: 00007f1dd78a5f40 R14: 000000000000112f R15: 00000000200003c0
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc9000ecd1000, ffffc9000ecd3000) created by:
 reiserfs_allocate_list_bitmaps+0xf2/0x220 fs/reiserfs/journal.c:290

The buggy address belongs to the physical page:
page:ffffea0000a63180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x298c6
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 6017, tgid 6014 (syz-executor.1), ts 230345144624, free_ts 229935979632
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426
 __alloc_pages_bulk+0x729/0xd40 mm/page_alloc.c:4374
 vm_area_alloc_pages mm/vmalloc.c:3028 [inline]
 __vmalloc_area_node mm/vmalloc.c:3139 [inline]
 __vmalloc_node_range+0x798/0x1490 mm/vmalloc.c:3320
 __vmalloc_node mm/vmalloc.c:3385 [inline]
 vzalloc+0x79/0x90 mm/vmalloc.c:3458
 reiserfs_allocate_list_bitmaps+0xf2/0x220 fs/reiserfs/journal.c:290
 journal_init+0x2f1/0x2460 fs/reiserfs/journal.c:2740
 reiserfs_fill_super+0x1039/0x2620 fs/reiserfs/super.c:2022
 mount_bdev+0x237/0x300 fs/super.c:1629
 legacy_get_tree+0xef/0x190 fs/fs_context.c:662
 vfs_get_tree+0x8c/0x280 fs/super.c:1750
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1136 [inline]
 free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
 tlb_batch_list_free mm/mmu_gather.c:114 [inline]
 tlb_finish_mmu+0x11f/0x1f0 mm/mmu_gather.c:395
 exit_mmap+0x4d3/0xc50 mm/mmap.c:3223
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc9000ecd0f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc9000ecd0f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc9000ecd1000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                      ^
 ffffc9000ecd1080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc9000ecd1100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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