tree 9340993337dad9222be9b32d9f940a4e9bdf386f
parent 7fa0549a2b7eaedd1a8bf9e13266b6535a9257fb
author Thierry FOURNIER <tfournier@arpalert.org> 1450633383 +0100
committer Willy Tarreau <w@1wt.eu> 1450649580 +0100
encoding latin1

BUG/MEDIUM: lua: Lua applets must not fetch samples using http_txn

If a sample fetch needing http_txn is called from an HTTP Lua applet,
the result will be invalid and may even cause a crash because some HTTP
data can be forwarded and the HTTP txn is no longer valid.

Here the solution is to ensure that a fetch called from Lua never
needs http_txn. This is done thanks to a new flag HLUA_F_MAY_USE_HTTP
which indicates whether or not it is safe to call a fetch which needs
HTTP.

This fix needs to be backported to 1.6.