neomutt crashed with SIGSEGV in cmd_parse_expunge()

[Dan Watkins]

I had copied a bunch of files to a different folder and when I hit $ to expunge my inbox, I hit this crash.

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: neomutt 20191111+dfsg.1-1
ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
Uname: Linux 5.3.0-23-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu9
Architecture: amd64
CrashCounter: 1
CurrentDesktop: i3
Date: Mon Nov 25 12:57:16 2019
ExecutablePath: /usr/bin/neomutt
ExecutableTimestamp: 1573627661
InstallationDate: Installed on 2019-05-07 (202 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
ProcCmdline: /usr/bin/neomutt
ProcCwd: /home/daniel
SegvAnalysis:
 Segfault happened at: 0x555555631707 <imap_cmd_step+1319>: subl $0x1,0x8(%rax)
 PC (0x555555631707) ok
 source "$0x1" ok
 destination "0x8(%rax)" (0x00000008) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: neomutt
StacktraceTop:
 cmd_parse_expunge (adata=0x555555717490, s=<optimized out>) at ../imap/command.c:270
 cmd_handle_untagged (adata=0x555555717490) at ../imap/command.c:997
 imap_cmd_step (adata=<optimized out>) at ../imap/command.c:1130
 imap_cmd_step (adata=0x555555717490) at ../imap/command.c:1071
 imap_exec (cmdstr=0x5555556805d7 "EXPUNGE", flags=<optimized out>, adata=0x555555717490) at ../imap/command.c:1267
Title: neomutt crashed with SIGSEGV in cmd_parse_expunge()
UpgradeStatus: Upgraded to focal on 2019-11-15 (10 days ago)
UserGroups: adm boinc cdrom dip docker libvirt lpadmin lxd plugdev sambashare sbuild sudo
separator:

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StacktraceTop:
 cmd_parse_expunge (adata=0x555555717490, s=<optimized out>) at ../imap/command.c:270
 cmd_handle_untagged (adata=0x555555717490) at ../imap/command.c:997
 imap_cmd_step (adata=<optimized out>) at ../imap/command.c:1130
 imap_cmd_step (adata=0x555555717490) at ../imap/command.c:1071
 imap_exec (cmdstr=0x5555556805d7 "EXPUNGE", flags=<optimized out>, adata=0x555555717490) at ../imap/command.c:1267

[Dan Watkins (oddbloke)]

I've reported this upstream as https://github.com/neomutt/neomutt/issues/1993

[Dan Watkins (oddbloke)]

Still present in 20191207+dfsg.1-1.1.

[Dan Watkins (oddbloke)]

The upstream issue was closed due to the age of the version I reported with; groovy has a more recent version so I've opened https://github.com/neomutt/neomutt/issues/2549 for this issue.