This is an upstream less bug that was fixed in version 481. Attached is a debdiff that cherry-picks the fix for this bug.
I have uploaded a fixed version of less to my PPA (for trusty (14.04) and wily (15.10)). See: https://launchpad.net/~a7x/+archive/ubuntu/bug1521043 ** Patch added: "debdiff" https://bugs.launchpad.net/debian/+source/less/+bug/1521043/+attachment/4527386/+files/debdiff.patch ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to less in Ubuntu. https://bugs.launchpad.net/bugs/1521043 Title: less 458 crashes if search regex has many groups Status in less package in Ubuntu: New Status in less package in Debian: Incomplete Bug description: less 458 crashes if there are enough capture groups in the regular expression used for search: newline=$(printf \\nx); newline=${newline%x} echo x | LESS="+g/(((((x)))))${newline}" less On amd64, the above produces a segfault: Segmentation fault (core dumped) On i386, the above triggers an assert: *** Error in `less': double free or corruption (fasttop): 0x0887f9e8 *** Aborted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/less/+bug/1521043/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
