CVE-2026-53182

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05	Patch
https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2	Patch
https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1	Patch
https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7	Patch
https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6	Patch
https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508	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::::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc6::::::

History

19 Oct 2026, 20:19

Type	Values Removed	Values Added
CWE		CWE-190

Information

Published : 2026-06-25 09:16

Updated : 2026-10-19 20:19

NVD link : CVE-2026-53182

Mitre link : CVE-2026-53182

CVE.ORG link : CVE-2026-53182

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-190

Integer Overflow or Wraparound

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