Incorrect Conversion between Numeric Types in Linux kernel - CVE-2026-98095

 

Incorrect Conversion between Numeric Types in Linux kernel - CVE-2026-98095

Published: September 28, 2026


Vulnerability identifier: #VU152358
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98095
CWE-ID: CWE-681
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper numeric type conversion in tpacket_parse_header() in af_packet when processing a user-provided tpacket_hdr with tp_len larger than INT_MAX. A local user can provide a crafted packet header to cause a denial of service.


Affected software

Linux kernel

How to mitigate CVE-2026-98095

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3

External References

Related Security Bulletins