CVE-2026-64047
kernel: net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 19, 2026
Updated · July 21, 2026
Description
A flaw was found in the Linux kernel's Transport Layer Security (TLS) component. An off-by-one error in how memory is managed for network messages can lead to memory corruption. This vulnerability may allow a local attacker to cause the system to crash, resulting in a denial of service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-193 · Off-by-one Error