[Pkg-zsh-devel] Bug#856046: Bug#856046: Bug#856046: zsh: fix two segfaults in zsh/parameter module appends

[Daniel Shahaf]

Axel Beckert wrote on Fri, Feb 24, 2017 at 19:13:59 +0100:
> Control: tag -1 + confirmed
> Control: forwarded -1 http://www.zsh.org/mla/workers/2017/msg00251.html
> Control: found -1 4.3.17-1
> Control: found -1 5.0.7-5
> 

Thanks for the investigation, Axel.  Minor update:

> > Please find attached two segfault fixes for zsh.
> 
> The according upstream bug report (which only covers one half of the
> issue as it's currently known) can be found at
> http://www.zsh.org/mla/workers/2017/msg00251.html
> 
> Following is a minimal case reproduce this on Debian Sid/Stretch with
> 5.3.1-3:
> 
> → zsh -f
> stretch% options+=()
> stretch% options+=()
> [1]  - 17934 segmentation fault (core dumped)  zsh -f
> → zsh -f
> stretch% functions+=()
> stretch% functions+=()
> [1]    18988 segmentation fault (core dumped)  zsh -f

I've just pushed upstream the fix for this (attached to the OP) in
revision 6c476c22111122006dcacc767b2c2846ede881e8 towards 5.3.2/5.4.

Remaining work (upstream) is to audit the remainder of the module for
additional instances of this problem.

Cheers,

Daniel