🛡️ AZL-40085 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2024-26898 affecting package kernel for versions less than 6.6.29.1-3

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 path in

aoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

AZL-40085 is recorded against 1 package.

  • kernel (fixed in 6.6.29.1-3)

Timeline and source

Published on 17 April 2024 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-04-17
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 6.6.29.1-3

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