syzbot

BUG: memory leak
unreferenced object 0xffff88810dacd780 (size 192):
  comm "syz-executor235", pid 5014, jiffies 4294958294 (age 13.690s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00  ................
    01 00 00 00 00 00 00 00 01 00 00 00 03 00 00 00  ................
  backtrace:
    [<ffffffff81547884>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057
    [<ffffffff817eeef1>] kmalloc include/linux/slab.h:559 [inline]
    [<ffffffff817eeef1>] kzalloc include/linux/slab.h:680 [inline]
    [<ffffffff817eeef1>] alloc_journal_list+0x21/0xc0 fs/reiserfs/journal.c:2571
    [<ffffffff817f3020>] journal_list_init fs/reiserfs/journal.c:2585 [inline]
    [<ffffffff817f3020>] journal_init+0x7c0/0x1f80 fs/reiserfs/journal.c:2840
    [<ffffffff817de0f3>] reiserfs_fill_super+0x623/0x15e0 fs/reiserfs/super.c:2022
    [<ffffffff81661951>] mount_bdev+0x221/0x260 fs/super.c:1380
    [<ffffffff816c5cef>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610
    [<ffffffff8165f41c>] vfs_get_tree+0x2c/0x110 fs/super.c:1510
    [<ffffffff816a27b3>] do_new_mount fs/namespace.c:3039 [inline]
    [<ffffffff816a27b3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369
    [<ffffffff816a33f2>] do_mount fs/namespace.c:3382 [inline]
    [<ffffffff816a33f2>] __do_sys_mount fs/namespace.c:3591 [inline]
    [<ffffffff816a33f2>] __se_sys_mount fs/namespace.c:3568 [inline]
    [<ffffffff816a33f2>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568
    [<ffffffff84a147c9>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff84a147c9>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd