vulnerability

Amazon Linux AMI: CVE-2025-21760: Security patch for kernel (ALAS-2025-1970)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Feb 27, 2025
Added
Apr 18, 2025
Modified
May 21, 2025

Description

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



ndisc: extend RCU protection in ndisc_send_skb()



ndisc_send_skb() can be called without RTNL or RCU held.



Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu()


and avoid a potential UAF.

Solution

amazon-linux-upgrade-kernel
Title
NEW

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