Out-of-bounds read in Linux kernel - CVE-2026-97408
Published: September 25, 2026
Vulnerability identifier: #VU152056
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97408
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to read beyond the advertised skb payload.
The vulnerability exists due to an out-of-bounds read in l2cap_recv_frame() when processing malformed connectionless L2CAP frames. A remote attacker can send a connectionless frame with an incomplete PSM payload to read beyond the advertised skb payload.
The read can use tailroom bytes as part of the PSM.
Affected software
Linux kernel
How to mitigate CVE-2026-97408
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3