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Mark Vitale 094066b485 pt_util: Dynamically allocate page buffer
Since introduced in commit 53986479ee (ptutil-initial-20001219),
pt_util has used a statically allocated buffer to read pages from the
database.  In several places the buffer is cast to a struct ubik_header.

Memory allocated dynamically via malloc()/calloc() is guaranteed to be
properly aligned for objects of any type at run time, however buffers
that are not allocated dynamically have no such guarantee.  So, instead
of using a statically allocated buffer, dynamically allocate it with
calloc() to ensure it is aligned for struct ubik_header objects.

This fixes a SIGBUS error whenever the buffer happens to be built with a
non-word alignment.  This failure was observed while running the
tests/ptserver/pt_util-t unit test on Solaris SPARC 64-bit.

Note:  By inspection, the same potential problem exists in
src/kauth/ka_util.c.  However, kaserver is deprecated and ka_util has
never been built by default.

Change-Id: I00372ed6adede32448b5e0df1c1d74689286a218
Reviewed-on: https://gerrit.openafs.org/15352
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Cheyenne Wills <cwills@sinenomine.net>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
2024-10-19 06:51:32 -04:00
build-tools make-release: create SHA256 checksums too 2024-04-25 12:22:19 -04:00
doc auth: Remove src/auth/copyauth 2024-10-09 16:35:34 -04:00
src pt_util: Dynamically allocate page buffer 2024-10-19 06:51:32 -04:00
tests tests: Fix perl string concatenation spacing 2024-09-12 11:36:12 -04:00
.gitignore Remove alpha_dux/alpha_osf references 2018-09-22 17:05:26 -04:00
.gitreview Add .gitreview 2018-02-04 15:34:55 -05:00
.mailmap git: add a mailmap file 2016-09-25 21:05:23 -04:00
.splintrc start-splint-support-20030528 2003-05-28 19:18:08 +00:00
acinclude.m4 cf: Remove SRCDIR_PARENT 2024-08-19 09:41:11 -04:00
CODING Stop defining HC_DEPRECATED 2024-07-09 08:13:29 -04:00
configure-libafs.ac cf: Set CC before calling AC_PROG_CC 2024-07-02 13:13:45 -04:00
configure.ac build: Remove doc directory checks 2024-07-09 11:21:54 -04:00
CONTRIBUTING Correct our contributor's code of conduct 2020-09-04 10:01:28 -04:00
INSTALL INSTALL: Update AIX notes 2024-07-02 14:52:10 -04:00
libafsdep Move build support files into build-tools 2010-07-14 20:40:36 -07:00
LICENSE cf: Make local copy of ax_gcc_func_attribute.m4 2020-07-24 08:35:59 -04:00
Makefile-libafs.in Fix libafs_tree's cross-architecture support 2010-05-24 20:28:41 -07:00
Makefile.in tests: Make src/tests buildable 2024-10-03 15:44:31 -04:00
NEWS Update NEWS for OpenAFS 1.9.1 2021-03-18 21:48:27 -04:00
NTMakefile Remove rpctestlib 2021-06-10 12:59:53 -04:00
README Tweak grammar in README 2015-12-28 19:32:17 -05:00
README-WINDOWS Update windows build documentation 2013-07-02 15:14:09 -07:00
regen.sh Use autoconf-archive m4 from src/external 2020-05-08 11:30:36 -04:00

AFS is a distributed file system that enables users to share and
access all of the files stored in a network of computers as easily as
they access the files stored on their local machines. The file system is
called distributed for this exact reason: files can reside on many
different machines, but are available to users on every machine.

OpenAFS 1.0 was originally released by IBM under the terms of the
IBM Public License 1.0 (IPL10).  For details on IPL10 see the LICENSE
file in this directory.  The current OpenAFS distribution is licensed
under a combination of the IPL10 and many other licenses as granted by
the relevant copyright holders.  The LICENSE file in this directory
contains more details, thought it is not a comprehensive statement.

See INSTALL for information about building and installing OpenAFS
on various platforms.

See CODING for developer information and guidelines.

See NEWS for recent changes to OpenAFS.