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CVE-2025-40294 is an out-of-bounds write in the Linux kernel Bluetooth management subsystem's parse_adv_monitor_pattern() function. The function accepted advertising-monitor pattern offset and length values up to the extended advertising-data limit of 251 bytes, while the mgmt_adv_pattern structure stores pattern values in a 31-byte array. A user-controlled pattern length greater than 31 could therefore cause an out-of-bounds access when the pattern value is copied. The fix restores offset and length validation to the legacy advertising-data limit, preventing writes beyond the fixed-size array without changing the userspace-visible structure layout.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds write vulnerability in Linux kernel Bluetooth MGMT that can lead to information disclosure and denial of service.
A Linux kernel Bluetooth MGMT out-of-bounds write that can cause information disclosure and denial of service.
A Linux kernel Bluetooth MGMT out-of-bounds write vulnerability that can lead to information disclosure and denial of service.
A Linux kernel out-of-bounds write vulnerability in Bluetooth MGMT that can lead to information disclosure and denial of service.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.