[Dovecot] core dump in mail_cache_header_fields_read()

[Timo Sirainen]

On 23.4.2014, at 21.43, Wesley Huang <huang at utsc.utoronto.ca> wrote:

> We're seeing a core dump for a user connecting from IPHONE. The user mail are in NFS mount.
> 
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007fca22f0ca85 in mail_cache_header_fields_read (cache=cache at entry=0x7fca24a04f70) at mail-cache-fields.c:369
> 369                     for (p = names; p != end && *p != '\0'; p++) ;

Looks like a corrupted dovecot.index.cache file. This should replace the crash with just an error message and cache recreation:

http://hg.dovecot.org/dovecot-2.2/rev/1f2c83d6dd2e