CVE-2026-23246

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5	Patch
https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4	Patch
https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e	Patch
https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400	Patch
https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.5:-::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::

History

No history.

Information

Published : 2026-03-18 11:16

Updated : 2026-06-17 10:21

NVD link : CVE-2026-23246

Mitre link : CVE-2026-23246

CVE.ORG link : CVE-2026-23246

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-129

Improper Validation of Array Index

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Skip subelements with\nlink_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: mac80211: verificaci\u00f3n de l\u00edmites de link_id en ieee80211_ml_reconfiguration\n\nlink_id se toma del elemento de reconfiguraci\u00f3n ML (control & 0x000f), por lo que puede ser 0..15. link_removal_timeout[] tiene IEEE80211_MLD_MAX_NUM_LINKS (15) elementos, por lo que el \u00edndice 15 est\u00e1 fuera de los l\u00edmites. Omitir subelementos con link_id >= IEEE80211_MLD_MAX_NUM_LINKS para evitar una escritura fuera de los l\u00edmites de la pila."}], "lastModified": "2026-06-17T10:21:10.783", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "32772849-BF02-4208-99C1-068667D43F23", "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5", "versionEndExcluding": "6.12.77", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2D9420A-9BF4-4C16-B6DA-8A1D279F7384"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}