CVE-2024-56739
rtc: check if __rtc_read_time was successful in rtc_timer_do_work()
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 29, 2024 |
| Last Updated | May 11, 2026 |
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Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
6610e0893b8bc6f59b14fed7f089c5997f035f88 < 39ad0a1ae17b54509cd9e93dcd8cec16e7c12d3f 6610e0893b8bc6f59b14fed7f089c5997f035f88 < 44b3257ff705d63d5f00ef8ed314a0eeb7ec37f2 6610e0893b8bc6f59b14fed7f089c5997f035f88 < 0d68e8514d9040108ff7d1b37ca71096674b6efe 6610e0893b8bc6f59b14fed7f089c5997f035f88 < 246f621d363988e7040f4546d20203dc713fa3e1 6610e0893b8bc6f59b14fed7f089c5997f035f88 < fde56535505dde3336df438e949ef4742b6d6d6e 6610e0893b8bc6f59b14fed7f089c5997f035f88 < dd4b1cbcc916fad5d10c2662b62def9f05e453d4 6610e0893b8bc6f59b14fed7f089c5997f035f88 < a1f0b4af90cc18b10261ecde56c6a56b22c75bd1 6610e0893b8bc6f59b14fed7f089c5997f035f88 < e77bce0a8c3989b4173c36f4195122bca8f4a3e1 6610e0893b8bc6f59b14fed7f089c5997f035f88 < e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40d
Linux / Linux
2.6.38
References
git.kernel.org: https://git.kernel.org/stable/c/39ad0a1ae17b54509cd9e93dcd8cec16e7c12d3f git.kernel.org: https://git.kernel.org/stable/c/44b3257ff705d63d5f00ef8ed314a0eeb7ec37f2 git.kernel.org: https://git.kernel.org/stable/c/0d68e8514d9040108ff7d1b37ca71096674b6efe git.kernel.org: https://git.kernel.org/stable/c/246f621d363988e7040f4546d20203dc713fa3e1 git.kernel.org: https://git.kernel.org/stable/c/fde56535505dde3336df438e949ef4742b6d6d6e git.kernel.org: https://git.kernel.org/stable/c/dd4b1cbcc916fad5d10c2662b62def9f05e453d4 git.kernel.org: https://git.kernel.org/stable/c/a1f0b4af90cc18b10261ecde56c6a56b22c75bd1 git.kernel.org: https://git.kernel.org/stable/c/e77bce0a8c3989b4173c36f4195122bca8f4a3e1 git.kernel.org: https://git.kernel.org/stable/c/e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40d lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html