In the Linux kernel, the following vulnerability has been resolved: watchdog: lenovo_se30_wdt: Fix possible devm_ioremap() NULL pointer dereference in lenovo_se30_wdt_probe() devm_ioremap() returns NULL on error. Currently, lenovo_se30_wdt_probe() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_ioremap() to prevent this issue.
https://git.kernel.org/stable/c/a4e2401438a26131ecff9be6a3a1d4cbfea66f9a
https://git.kernel.org/stable/c/57f7a1da0ec06d8579accaf77762d0128d13e4af