What’s Vulnerable › Vulnerabilities

CVE-2021-47204: net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-10 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove Access to netdev after free_netdev() will cause use-after-free bug. Move debug log before free_netdev() call to avoid it.

Affected products

• Linux kernel: from 4.17 before 5.4.162; from 5.5 before 5.10.82; from 5.11 before 5.15.5; 5.16-rc1 — fixed in 5.10.82, 5.15.5, 5.4.162

How to fix

Upgrade to a fixed version: Linux kernel 5.10.82, 5.15.5, 5.4.162. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9
• https://git.kernel.org/stable/c/32d4686224744819ddcae58b666c21d2a4ef4c88
• https://git.kernel.org/stable/c/9b5a333272a48c2f8b30add7a874e46e8b26129c
• https://git.kernel.org/stable/c/d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a
• https://git.kernel.org/stable/c/1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9
• https://git.kernel.org/stable/c/32d4686224744819ddcae58b666c21d2a4ef4c88
• https://git.kernel.org/stable/c/9b5a333272a48c2f8b30add7a874e46e8b26129c
• https://git.kernel.org/stable/c/d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a

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