squashfs: harden sanity check in squashfs_read_xattr_id_table

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The vulnerability of the `squashfs_read_xattr_id_table()` function in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the squashfsreadxattridtable function in the Linux kernel is related to read errors outside of the allowed range. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2023-52979

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