CVE-2026-98847
kernel: rtc: spear: initialize IRQ state before requesting alarm IRQ
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 24, 2026
Description
A flaw was found in the Linux kernel's SPEAr Real-Time Clock (RTC) driver. The driver requests and enables an alarm interrupt before completing device initialization, specifically prior to setting up the memory-mapped I/O (MMIO) address and spinlock. If an interrupt triggers while device probing is in progress, the handler attempts to run with uninitialized resources. This race condition can cause the system to crash, leading to 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 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-366 · Race Condition within a Thread