1781152 – gcc, libgcc need PAC unwinder to assure containers don't crash on newer systems. [rhel-7.6.z]

Bug 1781152 - gcc, libgcc need PAC unwinder to assure containers don't crash on newer systems. [rhel-7.6.z]

Summary: gcc, libgcc need PAC unwinder to assure containers don't crash on newer syste...

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	gcc
Sub Component:
Version:	7.6-Alt
Hardware:	aarch64
OS:	Linux
Priority:	high
Severity:	low
Target Milestone:	rc
Target Release:	---
Assignee:	Marek Polacek
QA Contact:	Alexandra Petlanová Hájková
Docs Contact:
URL:
Whiteboard:
Depends On:	1769573
Blocks:
TreeView+	depends on / blocked

Reported:	2019-12-09 12:40 UTC by RAD team bot copy to z-stream
Modified:	2020-01-21 17:02 UTC (History)
CC List:	8 users (show)
Fixed In Version:	gcc-4.8.5-37.el7_6
Doc Type:	Bug Fix
Doc Text:	Cause: System libgcc couldn't parse the new DWARF operation introduced in the ARMv8.3-A Pointer Authentication Extension, supported in newer compilers. Consequence: Application could crash when DWARF unwinding. Fix: Extend libgcc so that it can parse the new DWARF operation used when return addresses haven been signed. Result: The application crash doesn't occur anymore.
Clone Of:	1769573
Environment:
Last Closed:	2020-01-21 17:02:10 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2020:0180	0	None	None	None	2020-01-21 17:02:12 UTC

Description RAD team bot copy to z-stream 2019-12-09 12:40:48 UTC

This bug has been copied from bug #1769573 and has been proposed to be backported to 7.6 z-stream (EUS).

Comment 4 Alexandra Petlanová Hájková 2020-01-13 15:13:20 UTC

Hi Jeremy,

could you  make some suggestions how to test this bug, please?

Comment 7 errata-xmlrpc 2020-01-21 17:02:10 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, 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-2020:0180

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