Use of Uninitialized Variable in Linux kernel - CVE-2026-98001
Published: September 28, 2026
Vulnerability identifier: #VU152469
CSH Severity: Low
CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98001
CWE-ID: CWE-457
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to use of uninitialized stack memory in ltc428_clk_provider_setup() when initializing the ltc4282 clock provider. A local privileged user can trigger initialization of the ltc4282 clock provider to cause a denial of service.
The issue is exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled.
Affected software
Linux kernel
How to mitigate CVE-2026-98001
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3