CVE-2026-23284
Analyzed Analyzed - Analysis Complete
Use-After-Free in Linux mtk_eth_soc Ethernet Driver eBPF Handling

Publication date: 2026-03-25

Last updated on: 2026-05-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup() Reset eBPF program pointer to old_prog and do not decrease its ref-count if mtk_open routine in mtk_xdp_setup() fails.
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Meta Information
Published
2026-03-25
Last Modified
2026-05-22
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-14
NVD
CVE-2026-23284
EUVD
EUVD-2026-15208
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.19 (inc) to 6.19.7 (exc)
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.13 (inc) to 6.18.17 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.130 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.77 (exc)
linux linux_kernel From 6.0 (inc) to 6.1.167 (exc)
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the Linux kernel's ethernet driver for MediaTek SoC (mtk_eth_soc). It involves the handling of eBPF program pointers during the setup process in the mtk_xdp_setup() function. Specifically, if the mtk_open routine within mtk_xdp_setup() fails, the eBPF program pointer is reset to an old program pointer (old_prog) without decreasing its reference count, which could lead to improper management of eBPF programs.

Impact Analysis

Improper handling of eBPF program pointers and reference counts could potentially lead to resource leaks or instability in the network driver. This might affect system reliability or performance, especially in environments relying on eBPF for network packet processing. However, no specific impact details or exploit scenarios are provided.

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