[Ngspice-devel] [PATCH] Fix NULL dereference of getpwuid() in sharedspice.c and tclspice.c

[GRAYFOX <ac...@gr...>]

Hello,

I’ve benefitted from open source projects for years, but have never contributed to anything myself. Pardon me if I’m committing any sort of faux pas.

This patch adds a check for a NULL pointer returned by getpwuid() in sharedspice.c and tclspice.c, as well as what looks to be a missing call to tfree() in tclspice.c.

I personally stumbled on the nullptr dereference in sharespice.c, and the tclspice.c looks to be the only other file where this check doesn’t occur.

—
Chris Carreras