CVE-2022-48870
kernel: tty: fix possible null-ptr-defer in spk_ttyio_release
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 21, 2024
Updated · February 2, 2026
Description
A vulnerability was found in the Linux kernel spk_ttyio.c driver where a lack of proper checks could result in a NULL pointer dereference which can occur if the structure in_synth->dev is not initialized during modprobe. This can lead to memory corruption and system instability.
Statement
Red Hat Enterprise Linux is not impacted by this CVE, as the vulnerability in question does not affect the specific versions or configurations of the Linux kernel used in its distributions. This ensures that users of Red Hat Enterprise Linux are not exposed to the potential risks associated with this issue, and no further action or mitigation is necessary for systems running this operating system.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference