Bug 686140

Summary:	sys-libs/glibc-2.29-r2: lots of "stack smashing detected" errors on sparc
Product:	Gentoo Linux	Reporter:	Rolf Eike Beer <eike>
Component:	Current packages	Assignee:	Gentoo Toolchain Maintainers <toolchain>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	sparc
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Rolf Eike Beer archtester

2019-05-17 08:28:34 UTC

After I upgraded to glibc-2.29-r2 I get "stack smashing detected" errors in a lot of places, critical were these 2:

-calling fsck during boot (it called fsck.ext*, which seems to work), these failures causes boot to fail
-ssh login

Also many of my remote nagios checks failed, I'm not entirely sure what caused this, but it could have been ssh client failing, too.

After downgrading to 2.28-r6 things worked again immediately.

Comment 1 Sergei Trofimovich (RETIRED) gentoo-dev

2019-05-18 08:46:27 UTC

Sounds like a glibc bug. Is fsck a statically linked file by chance? I'd like to reproduce it in qemu-user or qemu-system and debug a bit. Wonder which binary would be easiest to debug.

Comment 2 Rolf Eike Beer archtester

2019-05-18 15:59:25 UTC

Nope, fsck is dynamically linked.

Comment 3 Sergei Trofimovich (RETIRED) gentoo-dev

2019-08-28 18:40:50 UTC

I failed to reproduce it on defaults.

Can you post full `emerge --info`? I'll try to reproduce locally with a closer to yours' environment.

Comment 4 Matt Turner gentoo-dev

2019-09-01 21:58:44 UTC

Not sure what's going on here. I cannot reproduce. glibc-2.29-r2 looks good on catbus.

Comment 5 Sergei Trofimovich (RETIRED) gentoo-dev

2019-11-19 23:25:08 UTC

Let's close it as obsolete.