separate crashed with SIGSEGV in unlink_chunk()

[David Kastrup]

Couldn't convince Gimp to separate layers. It just crashed.

ProblemType: Crash
DistroRelease: Ubuntu 22.10
Package: gimp-plugin-registry 9.20200927build1
ProcVersionSignature: Ubuntu 5.19.0-1003.3-lowlatency 5.19.0
Uname: Linux 5.19.0-1003-lowlatency x86_64
ApportVersion: 2.23.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: XFCE
Date: Mon Sep 5 23:45:41 2022
ExecutablePath: /usr/lib/gimp/2.0/plug-ins/separate
InstallationDate: Installed on 2011-10-14 (3986 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
JournalErrors: -- No entries --
ProcCmdline: /usr/lib/gimp/2.0/plug-ins/separate -gimp 13 12 -run 0
SegvAnalysis:
 Segfault happened at: 0x7f922309ccdf <unlink_chunk+15>: cmp (%rdi,%rax,1),%rax
 PC (0x7f922309ccdf) ok
 source "(%rdi,%rax,1)" (0xfa0695598fb34a8) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gimp-plugin-registry
StacktraceTop:
 unlink_chunk (p=p@entry=0x560d7d511270, av=0x7f92231f6c60 <main_arena>) at ./malloc/malloc.c:1622
 _int_malloc (av=av@entry=0x7f92231f6c60 <main_arena>, bytes=bytes@entry=8000) at ./malloc/malloc.c:4303
 __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at ./malloc/malloc.c:3674
 () at /lib/x86_64-linux-gnu/libbabl-0.1.so.0
 babl_exit () at /lib/x86_64-linux-gnu/libbabl-0.1.so.0
Title: separate crashed with SIGSEGV in unlink_chunk()
UpgradeStatus: Upgraded to kinetic on 2022-08-30 (13 days ago)
UserGroups: adm admin audio cdrom dialout fax floppy lpadmin lxd netdev plugdev pulse-access sambashare video
separator:

[Apport retracing service (apport)]

StacktraceTop:
 unlink_chunk (p=p@entry=0x560d7d511270, av=0x7f92231f6c60 <main_arena>) at ./malloc/malloc.c:1622
 _int_malloc (av=av@entry=0x7f92231f6c60 <main_arena>, bytes=bytes@entry=8000) at ./malloc/malloc.c:4303
 __libc_calloc (n=n@entry=8000, elem_size=elem_size@entry=1) at ./malloc/malloc.c:3674
 babl_store_db () at ../babl/babl-cache.c:185
 babl_exit () at ../babl/babl.c:172

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed as the report has a core dump which is invalid. The
corruption may have happened on the system which the crash occurred or during
transit.

Thank you for your understanding, and sorry for the inconvenience!