random: Initialize variables in hardware RNG functions #31912

1. 
   eval-exec commented at 2:46 am on February 20, 2025: contributor

   Re-create This PR since previous(https://github.com/bitcoin/bitcoin/pull/31902) failed to compile.

   Maybe we could re-consider and re-review this after 29.0 branch-off:

   1. #31902 (comment)
   2. #31902 (comment)
2. random: Initialize variables in hardware RNG functions

   Signed-off-by: Eval EXEC <execvy@gmail.com>

   2498dd8dbd
3. 
   DrahtBot commented at 2:47 am on February 20, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/31912.

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #29641 (scripted-diff: Use LogInfo over LogPrintf [WIP, NOMERGE, DRAFT] by maflcko)

   If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

4. 
   maflcko commented at 7:21 am on February 20, 2025: member

   Has someone tried to report or fix this upstream in the linux kernel or elsewhere? See #31908 (comment)
5. maflcko added the label Upstream on Feb 20, 2025
6. maflcko added the label Utils/log/libs on Feb 20, 2025
7. 
   giahuy98 commented at 8:41 pm on February 21, 2025: none

   2498dd8dbd5acdede03e1a57c5873ca022903023 works on Samsung S25 with the log: Using RNDR as an additional entropy source.

Contributors
eval-exec DrahtBot maflcko giahuy98

Labels
Upstream Utils/log/libs