Incorrect calculation in Linux kernel - CVE-2026-97618
Published: September 28, 2026
Vulnerability identifier: #VU152579
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-97618
CWE-ID: CWE-682
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause incorrect consumption of provided buffer-ring space.
The vulnerability exists due to improper buffer consumption accounting in io_uring recv and recvmsg operations when processing an incoming packet larger than the provided buffer with MSG_TRUNC. A remote attacker can send an oversized packet to cause incorrect consumption of provided buffer-ring space.
Multishot receives already limit consumption according to the available payload size.
Affected software
Linux kernel
How to mitigate CVE-2026-97618
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3