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NULL Pointer Dereference Affecting kernel-doc package, versions <0:3.10.0-1062.el7

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.19% (58th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELDOC-2139223
  • published 26 Jul 2021
  • disclosed 12 Apr 2018
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Introduced: 12 Apr 2018

CVE-2018-13093 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Centos:7 kernel-doc to version 0:3.10.0-1062.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.