CVE-2024-26898

/// Technical description

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

aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts

This patch is against CVE-2023-6270. The description of cve is:

A flaw was found in the ATA over Ethernet (AoE) driver in the Linux

kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on

`struct net_device`, and a use-after-free can be triggered by racing

between the free on the struct and the access through the `skbtxq`

global queue. This could lead to a denial of service condition or

potential code execution.

In aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial

code is finished. But the net_device ifp will still be used in

later tx()->dev_queue_xmit() in kthread. Which means that the

dev_put(ifp) should NOT be called in the success path of skb

initial code in aoecmd_cfg_pkts(). Otherwise tx() may run into

use-after-free because the net_device is freed.

This patch removed the dev_put(ifp) in the success pa

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References