So, v. 13.0 calls alloca() in the following source files:
findlib/mkpath.c
findlib/find_one.c
lib/bnet_server.c
lib/parse_conf.c
tools/bsmtp.c
tools/bsmtp.c
win32/compat/compat.h
win32/compat/compat.cpp
win32/compat/compat.cpp
win32/libwin32/statusDialog.cpp
and that list is unchanged from the 9.x tree.
The function that is blowing up appears to be called from
send_include_list(), which is found in src/dird/fd_cmds.c. That file
includes src/findlib/find.h. Checking the two source files in findlib,
the mkpath.c code is unchanged from 9.x. However, the find_one.c file is
significantly changed.
Assuming that Bacula 9.x compiles and works on this same release of
FreeBSD, (and is compiled with fstack-protector-strong), the most likely
culprit is a change to src/findlib/find_one.c. I would first try putting
some debug output around the find_one_file() function in find_one.c to
see if it is blowing up there.
The way alloca() works is that it increases the stack pointer and uses
memory at the top (higher address) of the stack. then when the function
exits, it automatically "frees" the stack-allocated memory by simply
decreasing the stack pointer right before the normal function return
code. So, it will also be necessary to put debug output around wherever
find_one_file() is called, since the fault is likely occurring within
one of the return statements in the find_one_file() function.
On 7/17/22 13:29, Andrea Venturoli wrote:
On 7/17/22 18:25, Larry Rosenman wrote:
> full build log for the DEBUG version:
>
https://home.lerctr.org:8888/data/live-host-ports/2022-07-16_17h45m44s/logs/bacula13-server-13.0.0.log
>
> full build log for the NON-DEBUG version:
>
https://home.lerctr.org:8888/data/live-host-ports/2022-07-15_12h19m17s/logs/bacula13-client-13.0.0.log
So -fstack-protector-strong in both.
bye & Thanks
av.
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