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BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x187/0x500 fs/reiserfs/journal.c:231
Read of size 8 at addr ffffc9000111e008 by task syz.6.633/7400

CPU: 0 PID: 7400 Comm: syz.6.633 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 cleanup_bitmap_list+0x187/0x500 fs/reiserfs/journal.c:231
 free_list_bitmaps+0x46/0x190 fs/reiserfs/journal.c:249
 free_journal_ram+0xdf/0x3c0 fs/reiserfs/journal.c:1884
 do_journal_release fs/reiserfs/journal.c:1957 [inline]
 journal_release_error+0x76/0x90 fs/reiserfs/journal.c:1975
 reiserfs_fill_super+0x1166/0x2440 fs/reiserfs/super.c:2227
 mount_bdev+0x287/0x3c0 fs/super.c:1400
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9d3dd0420a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d3bf1ae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9d3bf1aee0 RCX: 00007f9d3dd0420a
RDX: 0000200000000000 RSI: 00002000000000c0 RDI: 00007f9d3bf1aea0
RBP: 0000200000000000 R08: 00007f9d3bf1aee0 R09: 0000000000008488
R10: 0000000000008488 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f9d3bf1aea0 R14: 00000000000010fd R15: 0000200000000780
 </TASK>


Memory state around the buggy address:
 ffffc9000111df00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc9000111df80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc9000111e000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                      ^
 ffffc9000111e080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc9000111e100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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