PT-2025-28878 · Linux+7 · Linux Kernel+7
Syzbot
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Published
2025-06-17
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Updated
2026-05-26
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CVE-2025-38250
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
A use-after-free vulnerability exists in the
vhci flush() function within the Bluetooth HCI core of the Linux kernel. The vulnerability occurs when a thread closes a vhci file descriptor while another thread is still accessing it via iotcl(). This can lead to a slab-use-after-free condition, potentially resulting in system instability or other undefined behavior. The issue arises from a lack of synchronization after unlinking the hdev from the hci dev list in hci unregister dev().Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Centos
Debian
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu