NULL Pointer Dereference Affecting kernel-rt-devel package, versions *


Severity

Recommended
low

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.12% (48th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTDEVEL-1989256
  • published 26 Jul 2021
  • disclosed 26 May 2018

How to fix?

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

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by Centos. See How to fix? for Centos: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.