CVE-2026-98755
kernel: tty: vcc: zero-initialize control packet in vcc_send_ctl()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's Virtual Console Concentrator (VCC) driver. When sending control messages across a Logical Domain Channel (LDC), the driver transmits packets without completely clearing the allocated memory buffer first. A connected peer can inspect these messages to access uninitialized kernel stack memory, leading to an information disclosure of sensitive system data.
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 · 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-908 · Use of Uninitialized Resource