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Type: Bug
Resolution: Unresolved
Priority: Minor
Fix Version/s: rhel-10.0
Affects Version/s: rhel-10.0
Component/s: glibc
Labels:
- pt-libraries-evaluated

Regression:
None
Severity:
None
Epic Link:
PTG-56
Commit Hashes:
461cab1de747f3842f27a5d24977d78d561d45f9

Pool Team:

rhel-sst-pt-libraries
Sub-System Group:

ssg_platform_tools

Story Points:
3
Blocked:
False
Blocked Reason:

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None

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Product Documentation Required:
No
Products:

Red Hat Enterprise Linux
Sprint:
None

Preliminary Testing:
None
Test Coverage:
None

Release Note Type:
Unspecified Release Note Type - Unknown

Experience:
Architecture:

All

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None

The arc4random function currently does not perform any userspace buffering. This means we incur the system call overhead. In upstream Linux 6.5, there appears to be a chacha_permute call for every getrandom system call.

Linus Torvalds recommends userspace buffering: Re: [PATCH v14 2/7] mm: add VM_DROPPABLE for designating always lazily freeable mappings

depends on

RHEL-57777 glibc: Import bug fixes: F40 → c10s (snapshot 5)

Planning

Assignee:: Arjun Shankar

Reporter:: Florian Weimer

Contributors:: Florian Weimer

Developer:: Platform Tools - Libraries Bot

QA Contact:: Martin Coufal

Votes:: 0 Vote for this issue

Watchers:: 7 Start watching this issue

Created:: 2023/10/12 12:44 PM

Updated:: 2024/11/21 2:51 PM

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