SB20260815290 - Use of uninitialized resource in Linux kernel ieee802154

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Main Vulnerability Database SB20260815290

SB20260815290 - Use of uninitialized resource in Linux kernel ieee802154

Published: August 15, 2026

Security Bulletin ID SB20260815290
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use of uninitialized resource (CVE-ID: CVE-2026-72441)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to uninitialized memory usage in dgram_recvmsg() when copying a socket address to user space after parsing an IEEE 802.15.4 address with mode IEEE802154_ADDR_NONE. A local user can receive a crafted packet and invoke recvmsg() to disclose sensitive information.

The issue occurs because the pan_id field of struct ieee802154_addr is left uninitialized when the address mode is IEEE802154_ADDR_NONE.


Remediation

Install update from vendor's website.

References