Improper Locking Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-553.8.1.rt7.349.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTDEBUGMODULESEXTRA-7455447
  • published16 Jul 2024
  • disclosed18 Mar 2024

Introduced: 18 Mar 2024

CVE-2023-52615  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-rt-debug-modules-extra to version 0:4.18.0-553.8.1.rt7.349.el8_10 or higher.
This issue was patched in RLSA-2024:4352.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks.

Fix this by using a stack buffer when calling copy_to_user.

CVSS Scores

version 3.1