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Tasklist

FS#46458 - [lua-socket] client:receive() segfaults with buffer > ~4100

Attached to Project: Community Packages
Opened by Nimrod Maclomhair (nimrod_mack) - Monday, 28 September 2015, 12:54 GMT
Last edited by Sergej Pupykin (sergej) - Thursday, 01 October 2015, 19:20 GMT
Task Type Bug Report
Category Packages
Status Closed
Assigned To Sergej Pupykin (sergej)
Architecture i686
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

With lua-socket 3.0rc1-7 and lua 5.3.1-1

When trying to read a buffer larger than ca. 4096 bytes (haven't found the exact limit) the program segfaults, leaving something like that in the journal:
segfault at 666c347a (mostly random number to me, changes from call to call) ip 0804ce04 (usually the same) sp bfd5f03c (the first two letters stay like that) error 4 in lua[8048000+3e000] (that number and the error code don't change as well)

I have tried compiling lua-spcket from scratch (using the attached PKGBUILD, modified from the official version) and the error didn't persist.

I do not know wether the error also applies to the x86_64 platform.

Steps to reproduce:

I have attached a test script, that will start a server on port 8080. Using something like the following line should kill it:
$ dd if=/dev/urandom | nc 127.0.0.1 8080
This task depends upon

Closed by  Sergej Pupykin (sergej)
Thursday, 01 October 2015, 19:20 GMT
Reason for closing:  Fixed

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