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CVE-2023-52672 The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules-partner  (opens in a new tab)

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EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELDEBUGMODULESPARTNER-6862986
  • published18 May 2024
  • disclosed17 May 2024
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Introduced: 17 May 2024

CVE-2023-52672  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-partner package and not the kernel-debug-modules-partner package as distributed by RHEL.

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

pipe: wakeup wr_wait after setting max_usage

Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1].

The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write.

Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue.

[Christian Brauner <brauner@kernel.org>: rewrite to account for watch queues]