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Debian: CVE-2024-49936: linux, linux-6.1 -- security update

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Debian: CVE-2024-49936: linux, linux-6.1 -- security update

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
10/21/2024
Created
11/12/2024
Added
11/11/2024
Modified
01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvif_flush_hash() During the list_for_each_entry_rcu iteration call of xenvif_flush_hash, kfree_rcu does not exist inside the rcu read critical section, so if kfree_rcu is called when the rcu grace period ends during the iteration, UAF occurs when accessing head->next after the entry becomes free. Therefore, to solve this, you need to change it to list_for_each_entry_safe.

Solution(s)

  • debian-upgrade-linux
  • debian-upgrade-linux-6-1

References

  • https://attackerkb.com/topics/cve-2024-49936
  • CVE - 2024-49936
  • DLA-4008-1
  • 查看数 694
  • 已创建
  • 最后回复

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