UBUNTU-CVE-2023-53732

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    UBUNTU-CVE-2023-53732

    Published: 22 Oct 2025Last Modified: 8 Oct 2026
    Upstream:
    CVE-2023-53732

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix NULL dereference in ni_write_inode Syzbot reports a NULL dereference in ni_write_inode. When creating a new inode, if allocation fails in mi_init function (called in mi_format_new function), mi->mrec is set to NULL. In the error path of this inode creation, mi->mrec is later dereferenced in ni_write_inode. Add a NULL check to prevent NULL dereference.

    References: https://ubuntu.com/security/CVE-2023-53732, https://www.cve.org/CVERecord?id=CVE-2023-53732, https://git.kernel.org/linus/8dae4f6341e335a09575be60b4fdf697c732a470, https://git.kernel.org/stable/c/8dae4f6341e335a09575be60b4fdf697c732a470, https://git.kernel.org/stable/c/b1135fbaf8ebef93df326761ac70ebcc3c2e3d63, https://git.kernel.org/stable/c/b3152afc0eb864f7c6ecad134a15b577ef7aec77, https://git.kernel.org/stable/c/d4b74482529516477cf7b12502538e51827c699f

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2023-53732 | CVE-DB