Bug 2179342

Summary:	kernel: general protection fault, probably for non-canonical address PREEMPT SMP PT
Product:	Red Hat Enterprise Linux 9	Reporter:	Jeff Layton <jlayton>
Component:	kernel	Assignee:	Jeff Layton <jlayton>
kernel sub component:	NFS	QA Contact:	Zhi Li <yieli>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	high
Priority:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bcodding, bskeggs, chuck.lever, dcritch, dhowells, d.lesca, dr.diesel, dwysocha, edgar.hoch, exarkun, extras-qa, gnafu_the_great, hdegoede, hpa, jarodwilson, jglisse, jiyin, jlayton, josef, kernel-maint, lgoncalv, linville, masami256, mchehab, nfs-team, ptalbert, pvlasin, samuel-rhbugs, steved, trevor.hemsley, xzhou, yieli, yoyang
Version:	9.2	Keywords:	Regression, Triaged
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	kernel-5.14.0-284.6.1.el9_2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	2150630	Environment:
Last Closed:	2023-05-09 08:13:53 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:	2150630
Bug Blocks:

Description Jeff Layton 2023-03-17 13:16:57 UTC

+++ This bug was initially created as a clone of Bug #2150630 +++

RHEL9.2 picked up the same patches that caused this bug. We'll need to take the eventual fix that I posted upstream this morning:

    https://lore.kernel.org/linux-nfs/20230317105608.19393-1-jlayton@kernel.org/T/#t

...ideally before 9.2 ships so we don't cause a regression.

Comment 2 Jeff Layton 2023-03-17 13:24:17 UTC

Justification:

A rather nasty memory corruption bug in nfsd's splice read code has been taken into RHEL9.2. If we don't take the fix for this, then anyone running an NFS server with 9.2 kernels could end up crashing when trying to service client read requests.

Comment 23 Zhi Li 2023-04-03 13:05:24 UTC

Sanity testing this issue based on comment#22,
Move status to VERIFIED.

Comment 25 errata-xmlrpc 2023-05-09 08:13:53 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 (Important: kernel security, 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/RHSA-2023:2458