CVE-2018-13093

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    CVE-2018-13093

    Published: 3 Jul 2018Last Modified: 15 Mar 2026

    Summary:

    Details: An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.

    References: https://usn.ubuntu.com/4118-1/, https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html, https://usn.ubuntu.com/4094-1/, https://access.redhat.com/errata/RHSA-2019:2029, https://access.redhat.com/errata/RHSA-2019:2043, https://bugzilla.kernel.org/show_bug.cgi?id=199367, https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff, https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2018-13093 | CVE-DB