** Also affects: pam-python (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: pam-python (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: pam-python (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: pam-python (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: pam-python (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: pam-python (Ubuntu Xenial)
Status: New => Fix Released
** Changed in: pam-python (Ubuntu Bionic)
Status: New => Fix Released
** No longer affects: pam-python (Ubuntu Focal)
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1794999
Title:
wrong null pointer check
Status in pam-python package in Ubuntu:
Confirmed
Status in pam-python source package in Precise:
New
Status in pam-python source package in Trusty:
New
Status in pam-python source package in Xenial:
Fix Released
Status in pam-python source package in Bionic:
Fix Released
Bug description:
Building pam-python from source on Ubuntu bionic fails with this error
message:
make[2]: Entering directory '/tmp/source_copy/pam-python/src'
gcc -O0 -Wall -Wextra -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast
-Wsign-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes
-Wmissing-declarations -Werror -g -o ctest ctest.c -lpam
CFLAGS="-Wall -Wextra -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast
-Wsign-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes
-Wmissing-declarations -Werror -I/usr/local/lib/ " ./setup.py build
running build
running build_ext
building 'pam_python' extension
creating build
creating build/temp.linux-x86_64-2.7
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall
-Wstrict-prototypes -fno-strict-aliasing -Wall -Wextra -Wundef -Wshadow
-Wpointer-arith -Wbad-function-cast -Wsign-compare -Waggregate-return
-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Werror
-I/usr/local/lib/ -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC
-DLIBPYTHON_SO="libpython2.7.so.1.0" -I/usr/include/python2.7 -c pam_python.c
-o build/temp.linux-x86_64-2.7/pam_python.o
pam_python.c: In function 'call_handler':
pam_python.c:2229:19: error: argument 1 null where non-null expected
[-Werror=nonnull]
if (dot != 0 || strcmp(dot, ".py") == 0)
^~~~~~~~~~~~~~~~~~
In file included from /usr/include/security/_pam_macros.h:13:0,
from pam_python.c:33:
/usr/include/string.h:136:12: note: in a call to function 'strcmp' declared
here
extern int strcmp (const char *__s1, const char *__s2)
^~~~~~
cc1: all warnings being treated as errors
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
make[2]: *** [pam_python.so] Error 1
Makefile:9: recipe for target 'pam_python.so' failed
make[2]: Leaving directory '/tmp/source_copy/pam-python/src'
make[1]: *** [lib] Error 2
make: *** [build-arch] Error 2
Makefile:6: recipe for target 'lib' failed
make[1]: Leaving directory '/tmp/source_copy/pam-python'
debian/rules:38: recipe for target 'build-arch' failed
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2
The null pointer check condition is wrong in pam_python.c:2229
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pam-python/+bug/1794999/+subscriptions
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