Red Hat Bugzilla – Bug 73327
stack smash in cal
Last modified: 2007-04-18 12:46:17 EDT
From Bugzilla Helper: User-Agent: Mozilla/5.0 Galeon/1.2.5 (X11; Linux i686; U;) Gecko/20020606 Description of problem: I have libsafe v2.0.16 installed. When running 'cal' on an xterm, libsafe terminates it indicating a string overflow into the stack. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.Install libsafe 2. cat '/lib/libsafe.so.2' > /etc/ld.so.preload (one time) 3. run 'cal' Actual Results: libsafe terminates 'cal' with an error. Expected Results: a display of the calender. Additional info: [joe@bimbo rpmfiles]$ cal Libsafe version 2.0.16 Detected an attempt to write across stack boundary. Terminating /usr/bin/cal. uid=500 euid=500 pid=4429 Call stack: 0x40015982 /lib/libsafe.so.2.0.16 0x400160a1 /lib/libsafe.so.2.0.16 0x8048f07 /usr/bin/cal 0x8048d3d /usr/bin/cal 0x400491bf /lib/libc-2.2.5.so Overflow caused by wcscat() Killed [joe@bimbo rpmfiles]$ [joe@bimbo rpmfiles]$ cat /etc/ld.so.preload /lib/libsafe.so.2 [joe@bimbo rpmfiles]$ [joe@bimbo rpmfiles]$ rpm -q libsafe libsafe-2.0-16 [joe@bimbo rpmfiles]$
Hi, Thanks for taking the time to check with libsafe. Unfortunately I really need an actual bug report - i.e. telling what's broken (or that you can get an actual segfault to occur) instead of just pointing out what libsafe thinks there is a problem (but which may be another false alarm).