CVE-2023-52672
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CVSS Score
V3.1EPSS Score
v2025.03.14There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.
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Description
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 <[email protected]>: rewrite to account for watch queues]
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GitHub Security Advisories
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Advisory Details
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CVSS Score
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
Advisory provided by GitHub Security Advisory Database. Published: May 17, 2024, Modified: July 3, 2024