🛡️ AZL-50679 — kernel

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

Description

CVE-2024-47747 affecting package kernel for versions less than 6.6.56.1-5

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

net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition

In the ether3_probe function, a timer is initialized with a callback

function ether3_ledoff, bound to &prev(dev)->timer. Once the timer is

started, there is a risk of a race condition if the module or device

is removed, triggering the ether3_remove function to perform cleanup.

The sequence of operations that may lead to a UAF bug is as follows:

CPU0 CPU1

| ether3_ledoff

ether3_remove |

free_netdev(dev); |

put_devic |

kfree(dev); |

| ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2);

| // use dev

Fix it by ensuring that the timer is canceled before proceeding with

the cleanup in ether3_remove.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, 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-50679 is recorded against 1 package.

  • kernel (fixed in 6.6.56.1-5)

Timeline and source

Published on 21 October 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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-10-21
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 6.6.56.1-5

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