VulnerabilityPublished 25 Mar 2026Updated 10 Nov 2026

CVE-2026-23284: Linux kernel · net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ff14cd44c85c20ad69479db73698185de291550c : update Linux kernel when convenient.

Data as of 10 Nov 2026, 13:02 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Patch: Available – fixed in ff14cd44c85c20ad69479db73698185de291550c, b73dfe1ea7be7a072482434643b517d7726f4c8d, 29629dd7d37349e9fb605375a75de44ac8926ea9 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < ff14cd44c85c20ad69479db73698185de291550c	Fixed in ff14cd44c85c20ad69479db73698185de291550c
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < b73dfe1ea7be7a072482434643b517d7726f4c8d	Fixed in b73dfe1ea7be7a072482434643b517d7726f4c8d
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < 29629dd7d37349e9fb605375a75de44ac8926ea9	Fixed in 29629dd7d37349e9fb605375a75de44ac8926ea9
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < 8c2d76a9658a4dbfcf02f2693a97e2d5ff42197a	Fixed in 8c2d76a9658a4dbfcf02f2693a97e2d5ff42197a
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < 6f95b59520278a72df9905db791b7ea31375fbc1	Fixed in 6f95b59520278a72df9905db791b7ea31375fbc1
LinuxLinux	Affected ≥ 7c26c20da5d420cde55618263be4aa2f6de53056, < 0abc73c8a40fd64ac1739c90bb4f42c418d27a5e	Fixed in 0abc73c8a40fd64ac1739c90bb4f42c418d27a5e

AI-suggested

The vulnerability is fixed in the Linux kernel commits identified by the provided fixedVersions hashes. Users should update their Linux kernel to a version that includes these fixes to remediate the issue.

Description

A vulnerability in the Linux kernel's MediaTek Ethernet driver (mtk_eth_soc) was fixed by resetting the eBPF program pointer to the previous program (old_prog) and avoiding decrementing its reference count if the mtk_open routine fails during mtk_xdp_setup(). This prevents improper handling of eBPF program pointers in error conditions.

Impact

Improper handling of eBPF program pointers on error paths could lead to resource mismanagement such as use-after-free or dangling pointers, potentially causing kernel instability or crashes. However, no known exploits are reported in the wild, and the impact is limited to the affected driver code path during XDP setup failures.

Summary

CVE-2026-23284 addresses a flaw in the Linux kernel's mtk_eth_soc driver where, during the setup of XDP (eXpress Data Path) programs in mtk_xdp_setup(), failure in the mtk_open routine could lead to incorrect handling of the eBPF program pointer. The fix involves resetting the program pointer to the old program and not decreasing its reference count when an error occurs, ensuring proper resource management and preventing potential instability or memory issues.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Nov 2026, 13:02 UTC

Technical details

References

Community reviews

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