VULNERABILITY

Debian: CVE-2025-21836: linux -- security update

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Debian: CVE-2025-21836: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
03/07/2025
Created
05/16/2025
Added
05/15/2025
Modified
05/15/2025

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: reallocate buf lists on upgrade IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy selected buffer and has been emptied. It violates the requirement that most of the field should stay stable after publish. Always reallocate it instead.

Solution(s)

  • no-fix-debian-deb-package

References

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