Summary: | glibc: Call _dl_open_check (CET related) after relocation is finished | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 8 | Reporter: | Carlos O'Donell <codonell> |
Component: | glibc | Assignee: | DJ Delorie <dj> |
Status: | CLOSED ERRATA | QA Contact: | qe-baseos-tools-bugs |
Severity: | unspecified | Docs Contact: | |
Priority: | unspecified | ||
Version: | 8.0 | CC: | ashankar, codonell, dj, fweimer, mcermak, mnewsome, pfrankli, skolosov, tgummels, woodard |
Target Milestone: | rc | Keywords: | Patch, Triaged |
Target Release: | 8.0 | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | glibc-2.28-82.el8 | Doc Type: | No Doc Update |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2020-04-28 16:50:14 UTC | Type: | Bug |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Bug Depends On: | 1682593 | ||
Bug Blocks: | 1755139, 1746913 |
Description
Carlos O'Donell
2019-02-25 22:35:15 UTC
Note: My understanding is that this bug is visible even on non-CET hardware because the CET markup is checked for consistency even in non-CET mode, which makes this bug visible on current x86 hardware. Commit: commit d0093c5cefb7f7a4143f3bb03743633823229cc6 Author: H.J. Lu <hjl.tools@gmail.com> Date: Mon Jul 1 12:23:10 2019 -0700 Call _dl_open_check after relocation [BZ #24259] This is a workaround for [BZ #20839] which doesn't remove the NODELETE object when _dl_open_check throws an exception. Move it after relocation in dl_open_worker to avoid leaving the NODELETE object mapped without relocation. Please also verify upstream branch backports: release/2.30/master - May be required. Please check. release/2.29/master - May be required. Please check. release/2.28/master - May be required. Please check. Backported to upstream 2.29 and 2.28 Verified with elf/tst-cet-legacy-5a, elf/tst-cet-legacy-6a 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, 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/RHSA-2020:1828 |