BUG: memory leak
unreferenced object 0xffff888120efc760 (size 32):
  comm "syz-executor951", pid 7120, jiffies 4294941466 (age 7.930s)
  hex dump (first 32 bytes):
    2e 67 0c 97 9d ed 90 60 a1 19 60 c9 b4 1d 8b 00  .g.....`..`.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000024d4ca08>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000024d4ca08>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000024d4ca08>] slab_alloc mm/slab.c:3320 [inline]
    [<0000000024d4ca08>] __do_kmalloc mm/slab.c:3654 [inline]
    [<0000000024d4ca08>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671
    [<000000008b0ced93>] kstrdup+0x3a/0x70 mm/util.c:60
    [<00000000c4b01931>] reiserfs_fill_super+0x500/0x1120 fs/reiserfs/super.c:1946
    [<00000000b5502d09>] mount_bdev+0x1ce/0x210 fs/super.c:1417
    [<0000000000918f45>] get_super_block+0x35/0x40 fs/reiserfs/super.c:2604
    [<000000003fe11538>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647
    [<00000000194b3c52>] vfs_get_tree+0x2d/0xe0 fs/super.c:1547
    [<00000000c4baac9d>] do_new_mount fs/namespace.c:2822 [inline]
    [<00000000c4baac9d>] do_mount+0x97c/0xc80 fs/namespace.c:3142
    [<00000000708b3a73>] __do_sys_mount fs/namespace.c:3351 [inline]
    [<00000000708b3a73>] __se_sys_mount fs/namespace.c:3328 [inline]
    [<00000000708b3a73>] __x64_sys_mount+0xc0/0x140 fs/namespace.c:3328
    [<000000005e86d00d>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
    [<000000000572ecd7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9