Out-of-bounds read in Linux kernel - CVE-2026-97976
Published: September 28, 2026
Vulnerability identifier: #VU152498
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97976
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to perform an out-of-bounds read.
The vulnerability exists due to improper bounds checking in btintel_pcie_submit_rx_work() when processing RX packets with a packet_len value from rfh_hdr. A local privileged user can provide an oversized packet_len value to perform an out-of-bounds read.
Affected software
Linux kernel
How to mitigate CVE-2026-97976
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3