CVE-2022-50582

Summary

In the Linux kernel, the following vulnerability has been resolved:

regulator: core: Prevent integer underflow

By using a ratio of delay to poll_enabled_time that is not integer time_remaining underflows and does not exit the loop as expected. As delay could be derived from DT and poll_enabled_time is defined in the driver this can easily happen.

Use a signed iterator to make sure that the loop exits once the remaining time is negative.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf7d7ad42a9dc2d63cab6a79fe31e6732a30dacf5 < b051d9bf98bd9cea312b228e264eb6542a9beb67affected
LinuxLinuxf7d7ad42a9dc2d63cab6a79fe31e6732a30dacf5 < e33da263e9658bfe870ea7836fbbd72f246d7dbdaffected
LinuxLinuxf7d7ad42a9dc2d63cab6a79fe31e6732a30dacf5 < 9f2395316e4845466cb9b5b9b15a171a2c91913caffected
LinuxLinuxf7d7ad42a9dc2d63cab6a79fe31e6732a30dacf5 < bfe602d9a349360e60e9051c9cafb9fef204524daffected
LinuxLinuxf7d7ad42a9dc2d63cab6a79fe31e6732a30dacf5 < 8d8e16592022c9650df8aedfe6552ed478d7135baffected
LinuxLinux5.9affected
LinuxLinux0 < 5.9unaffected
LinuxLinux5.10.150 <= 5.10.*unaffected
LinuxLinux5.15.75 <= 5.15.*unaffected
LinuxLinux5.19.17 <= 5.19.*unaffected
LinuxLinux6.0.3 <= 6.0.*unaffected
LinuxLinux6.1 <= *unaffected

Weaknesses

References