[Bug 1719318] [NEW] mutt segfaults in cmd_parse_expunge

[Dan Watkins]

Public bug reported:

A short backtrace:

Thread 1 (Thread 0x7ffff7f948c0 (LWP 3606)):
#0  0x000055555562ee0e in cmd_parse_expunge (s=0x555555a1a8a2 "42 EXPUNGE", idata=0x555555a13f60) at ../../../imap/command.c:209
#1  0x000055555562ee0e in cmd_handle_untagged (idata=0x555555a13f60) at ../../../imap/command.c:719
#2  0x000055555562ee0e in imap_cmd_step (idata=idata at entry=0x555555a13f60) at ../../../imap/command.c:837
#3  0x000055555562fb38 in imap_exec (idata=idata at entry=0x555555a13f60, cmdstr=cmdstr at entry=0x5555556538d6 "EXPUNGE", flags=flags at entry=0) at ../../../imap/command.c:941
#4  0x00005555556327fc in imap_sync_mailbox (ctx=ctx at entry=0x555555a04df0, expunge=expunge at entry=1) at ../../../imap/imap.c:1348
#5  0x00005555555cbe7b in mx_sync_mailbox (ctx=ctx at entry=0x555555a04df0, index_hint=index_hint at entry=0x7fffffffce24) at ../../mx.c:1239
#6  0x0000555555597234 in mutt_index_menu () at ../../curs_main.c:1729
#7  0x000055555557274a in main (argc=1, argv=<optimised out>, env=<optimised out>) at ../../main.c:920

(Fuller backtrace attached.)

** Affects: mutt (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "gdb.txt"
   https://bugs.launchpad.net/bugs/1719318/+attachment/4956728/+files/gdb.txt

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https://bugs.launchpad.net/bugs/1719318

Title:
  mutt segfaults in cmd_parse_expunge

Status in mutt package in Ubuntu:
  New

Bug description:
  A short backtrace:

  Thread 1 (Thread 0x7ffff7f948c0 (LWP 3606)):
  #0  0x000055555562ee0e in cmd_parse_expunge (s=0x555555a1a8a2 "42 EXPUNGE", idata=0x555555a13f60) at ../../../imap/command.c:209
  #1  0x000055555562ee0e in cmd_handle_untagged (idata=0x555555a13f60) at ../../../imap/command.c:719
  #2  0x000055555562ee0e in imap_cmd_step (idata=idata at entry=0x555555a13f60) at ../../../imap/command.c:837
  #3  0x000055555562fb38 in imap_exec (idata=idata at entry=0x555555a13f60, cmdstr=cmdstr at entry=0x5555556538d6 "EXPUNGE", flags=flags at entry=0) at ../../../imap/command.c:941
  #4  0x00005555556327fc in imap_sync_mailbox (ctx=ctx at entry=0x555555a04df0, expunge=expunge at entry=1) at ../../../imap/imap.c:1348
  #5  0x00005555555cbe7b in mx_sync_mailbox (ctx=ctx at entry=0x555555a04df0, index_hint=index_hint at entry=0x7fffffffce24) at ../../mx.c:1239
  #6  0x0000555555597234 in mutt_index_menu () at ../../curs_main.c:1729
  #7  0x000055555557274a in main (argc=1, argv=<optimised out>, env=<optimised out>) at ../../main.c:920

  (Fuller backtrace attached.)

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