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Bug 2144568 - glibc: Fix rtld-audit trampoline for aarch64
Summary: glibc: Fix rtld-audit trampoline for aarch64
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: glibc
Version: 8.8
Hardware: aarch64
OS: All
low
medium
Target Milestone: rc
: ---
Assignee: Arjun Shankar
QA Contact: Martin Coufal
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-11-21 17:43 UTC by Florian Weimer
Modified: 2023-05-16 10:58 UTC (History)
8 users (show)

Fixed In Version: glibc-2.28-224.el8
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-05-16 09:03:05 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-140063 0 None None None 2022-11-21 17:52:14 UTC
Red Hat Product Errata RHBA-2023:2955 0 None None None 2023-05-16 09:03:14 UTC

Description Florian Weimer 2022-11-21 17:43:57 UTC
We should backport one more fix for LD_AUDIT support on aarch64:

commit eb4181e9f4a512de37dad4ba623c921671584dea
Author: Vladislav Khmelevsky <och95>
Date:   Thu Nov 17 12:47:29 2022 +0400

    elf: Fix rtld-audit trampoline for aarch64
    
    This patch fixes two problems with audit:
    
      1. The DL_OFFSET_RV_VPCS offset was mixed up with DL_OFFSET_RG_VPCS,
         resulting in x2 register value nulling in RG structure.
    
      2. We need to preserve the x8 register before function call, but
         don't have to save it's new value and restore it before return.
    
    Anyway the final restore was using OFFSET_RV instead of OFFSET_RG value
    which is wrong (althoug doesn't affect anything).
    
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella>

Comment 11 errata-xmlrpc 2023-05-16 09:03:05 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (glibc bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:2955


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