PT-2025-42256 · Linux+7 · Linux Kernel+7
Published
2025-10-15
·
Updated
2026-05-28
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CVE-2025-39981
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw related to Bluetooth MGMT handling, potentially leading to use-after-free (UAF) conditions. This issue arises from the improper management of
mgmt pending structures, which can be freed while still being processed. The vulnerability occurs when a mgmt pending structure is freed while still being accessed, potentially leading to system instability or other undefined behavior. The fix introduces a check (mgmt pending valid) to ensure the structure hasn't been removed from the pending list before access, and removes the command from the list while holding the mgmt pending lock to prevent TOCTOU (Time-of-Check-Time-of-Use) problems.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Almalinux
Debian
Linuxmint
Linux Kernel
Red Hat
Rocky Linux
Suse
Ubuntu