*** This bug is a duplicate of bug 1953187 ***
https://bugs.launchpad.net/bugs/1953187
Thank you for taking the time to report this crash and helping to make
this software better. This particular crash has already been reported
and is a duplicate of bug #1953187, so is being marked as such. Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Please continue to report any other bugs you may
find.
** Attachment removed: "CoreDump.gz"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547354/+files/CoreDump.gz
** Attachment removed: "Disassembly.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547356/+files/Disassembly.txt
** Attachment removed: "ProcMaps.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547360/+files/ProcMaps.txt
** Attachment removed: "ProcStatus.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547361/+files/ProcStatus.txt
** Attachment removed: "Registers.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547362/+files/Registers.txt
** Attachment removed: "Stacktrace.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547363/+files/Stacktrace.txt
** Attachment removed: "ThreadStacktrace.txt"
https://bugs.launchpad.net/bugs/1954696/+attachment/5547364/+files/ThreadStacktrace.txt
** This bug has been marked a duplicate of private bug 1953187
** Information type changed from Private to Public
** Tags removed: need-amd64-retrace
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to openssh in Ubuntu.
https://bugs.launchpad.net/bugs/1954696
Title:
ssh assert failure: malloc_consolidate(): unaligned fastbin chunk
detected
Status in openssh package in Ubuntu:
New
Bug description:
ssh with GSSAPITrustDNS=true causes this crash, reported in Ubuntu
20.04 as well.
ProblemType: Crash
DistroRelease: Ubuntu 21.10
Package: openssh-client 1:8.4p1-6ubuntu2
Uname: Linux 5.13.19.20211207 x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
AssertionMessage: malloc_consolidate(): unaligned fastbin chunk detected
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Thu Dec 9 19:13:03 2021
ExecutablePath: /usr/bin/ssh
InstallationDate: Installed on 2019-10-07 (798 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcCmdline: ssh -n -tt -S none -o ProxyCommand='/usr/bin/mosh'\
'--family=prefer-inet'\ --fake-proxy\ --\ %h\ %p home -- mosh-server\ 'new'\
'-c'\ '8'\ '-s'\ '-l'\ 'LANG=en_US.UTF-8'\ '-l'\ 'LANGUAGE=en_US'\ '-l'\
'LC_NUMERIC=en_US.UTF-8'\ '-l'\ 'LC_TIME=en_GB.UTF-8'\ '-l'\
'LC_COLLATE=en_US.UTF-8'\ '-l'\ 'LC_MONETARY=en_US.UTF-8'\ '-l'\
'LC_MEASUREMENT=en_US.UTF-8'
RelatedPackageVersions:
ssh-askpass N/A
libpam-ssh N/A
keychain N/A
ssh-askpass-gnome N/A
SSHClientVersion: OpenSSH_8.4p1 Ubuntu-6ubuntu2, OpenSSL 1.1.1l 24 Aug 2021
Signal: 6
SourcePackage: openssh
StacktraceTop:
__libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f880650b13d
"%s\n") at ../sysdeps/posix/libc_fatal.c:155
malloc_printerr (str=str@entry=0x7f880650dbc8 "malloc_consolidate():
unaligned fastbin chunk detected") at malloc.c:5543
malloc_consolidate (av=av@entry=0x7f8806544c60 <main_arena>) at malloc.c:4637
_int_malloc (av=av@entry=0x7f8806544c60 <main_arena>,
bytes=bytes@entry=1280) at malloc.c:3852
__GI___libc_malloc (bytes=1280) at malloc.c:3208
Title: ssh assert failure: malloc_consolidate(): unaligned fastbin chunk
detected
UpgradeStatus: Upgraded to impish on 2021-10-20 (53 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare src sudo video wireshark
modified.conffile..etc.apport.crashdb.conf: [modified]
modified.conffile..etc.ssh.ssh_config: [modified]
mtime.conffile..etc.apport.crashdb.conf: 2021-05-06T22:22:53.957540
mtime.conffile..etc.ssh.ssh_config: 2020-06-18T20:59:08.420114
separator:
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