https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=175314
Kyle Evans <bsdpo...@kyle-evans.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bsdpo...@kyle-evans.net
--- Comment #1 from Kyle Evans <bsdpo...@kyle-evans.net> ---
Created attachment 179167
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=179167&action=edit
Proposed patch to address bsdgrep abusing memory
This was irritating to track down. There were two major problems here:
1.) wescmap was being built on top of uninitialized memory -- therefore, every
dot was theoretically escaped with junk=true
2.) The pre-processed pattern never makes it to fg->pattern, so escmap (also
uninitialized memory) was being built based on the processed pattern (without
escapes)
This caused mass-hilarity and there's no way this could have worked since
import. Attached patch addresses both issues by switching both xmalloc()'s to
xcalloc and making a copy of the original pat (sans start marker at least) to
examine for escapes.
I also touched formatting a bit in the area that I had to make more changes to,
because it was difficult to parse through at first.
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
freebsd-bugs@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
