In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.
https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c
https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb
https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5
https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70