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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-19 12:26:14 +0200 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-20 14:10:07 +0200 |
| commit | f8d67ca8d4cbbbd6c6b3319d531089880d332534 (patch) | |
| tree | f809a0521b44891e2c9ef44f86c944eefcd92a9d /src/backend/access/transam/xlogutils.c | |
| parent | 8d9073692430a222939e7f2e436c80f0c271f116 (diff) | |
| download | postgresql-f8d67ca8d4cbbbd6c6b3319d531089880d332534.tar.gz postgresql-f8d67ca8d4cbbbd6c6b3319d531089880d332534.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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