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Debian: CVE-2023-52672: linux -- security update

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Debian: CVE-2023-52672: linux -- security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/17/2024
Created
06/28/2024
Added
06/27/2024
Modified
07/03/2024

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]

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2023-52672
  • CVE - 2023-52672
  • DLA-3842-1
  • 查看数 699
  • 已创建
  • 最后回复

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