Bug 1764223
| Summary: | glibc: elf: Refuse to dlopen PIE objects [BZ #24323] | ||
|---|---|---|---|
| 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: | 8.2 | CC: | ashankar, codonell, dj, fweimer, mnewsome, pfrankli, skolosov |
| Target Milestone: | rc | Keywords: | Patch, Triaged |
| Target Release: | 8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | glibc-2.28-94 | Doc Type: | No Doc Update |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-04-28 16:50:19 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: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1746918 | ||
Verified with glibc elf/tst-dlopen-pie test case. 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 |
We need to backport this to disallow invalid object loading. commit 2c75b545de6fe3c44138799c68217a94bc669a88 Author: Florian Weimer <fweimer> Date: Tue Jun 18 16:42:10 2019 +0200 elf: Refuse to dlopen PIE objects [BZ #24323] Another executable has already been mapped, so the dynamic linker cannot perform relocations correctly for the second executable. Please backport patch to Fedora (if required): Fedora 31 Fedora 30 Fedora 29