SB20261015140 - Off-by-one in Linux kernel bluetooth driver
Published: October 15, 2026
Security Bulletin ID
SB20261015140
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Off-by-one (CVE-ID: CVE-2026-98392)
CWE-ID: CWE-193 - Off-by-one Error
CVSSv4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause out-of-bounds memory access.
The vulnerability exists due to an off-by-one error in the bounds check in btintel_pcie_msix_tx_handle() when handling transmit queue entries. A local user can trigger processing of a transmit descriptor whose index equals the transmit queue count to cause out-of-bounds memory access.
Remediation
Install update from vendor's website.