CVE-2026-98290 Linux Kernel Bluetooth RFCOMM - Denial of Service

Linux kernel Bluetooth RFCOMM contains a deadlock vulnerability caused by socket lock inversion in listener cleanup, letting attackers cause denial of service by triggering a deadlock, exploit requires ability to initiate Bluetooth connections.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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