VULNERABILITY INTELLIGENCE

CVE-2024-56739

CVSS score5.5 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2024-12-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: rtc: check if __rtc_read_time was successful in rtc_timer_do_work() If the __rtc_read_time call fails,, the struct rtc_time tm; may contain uninitialized data, or an illegal date/time read from the RTC hardware. When calling rtc_tm_to_ktime later, the result may be a very large value (possibly KTIME_MAX). If there are periodic timers in rtc->timerqueue, they will continually expire, may causing kernel softlockup.

Weakness classification

  • nvd@nist.gov: CWE-908
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-908

Primary references