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NULL Pointer Dereference Affecting kernel-rt package, versions *

Severity

 Recommended
low

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.12% (49th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELRT-1379635
  • published 26 Jul 2021
  • disclosed 26 May 2018
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Introduced: 26 May 2018

CVE-2018-14612 Open this link in a new tab
CWE-476 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

There is no fixed version for RHEL:7 kernel-rt.

NVD Description

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

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfs_root_node() when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfs_read_block_groups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks in check_leaf in fs/btrfs/tree-checker.c.