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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-20 14:18:08 +0200 |
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| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-20 14:18:08 +0200 |
| commit | b0b6f8d71f03463854576b30c1b01e5d772076d8 (patch) | |
| tree | 1aeb1c1fe87011bdc2b5095ba71e46c05100feeb /src/backend/access/transam/xlogutils.c | |
| parent | 38b03caebc5de44704567d8422f256c3e66b4784 (diff) | |
| download | postgresql-b0b6f8d71f03463854576b30c1b01e5d772076d8.tar.gz postgresql-b0b6f8d71f03463854576b30c1b01e5d772076d8.zip | |
Fix (some of) pltcl memory usage
As reported by Bill Parker, PL/Tcl did not validate some malloc() calls
against NULL return. Fix by using palloc() in a new long-lived memory
context instead. This allows us to simplify error handling too, by
simply deleting the memory context instead of doing retail frees.
There's still a lot that could be done to improve PL/Tcl's memory
handling ...
This is pretty ancient, so backpatch all the way back.
Author: Michael Paquier and Álvaro Herrera
Discussion: https://www.postgresql.org/message-id/CAFrbyQwyLDYXfBOhPfoBGqnvuZO_Y90YgqFM11T2jvnxjLFmqw@mail.gmail.com
Diffstat (limited to 'src/backend/access/transam/xlogutils.c')
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