segmentation violation using openssh-2.9.9p2 on linux 2.2.19

Charlie Root root at bigredrockeater.com
Wed Oct 3 15:18:34 EST 2001


I received a segmentation violation whilst using openssh-2.2.9p2 today:

	Kernel 2.2.19-6.2.7 (Redhat 6.2)
	Gcc version egcs-2.91.66
	glibc-2.1.3-22
	Hardware is 333MHz K6-3Dnow with 64MB RAM if that matters

Here is what happened along with a stack dump...


# ssh -L 80:someplace.net:80 -l charlie someplace.net
Password:
(works for a while, then seems to freeze)
^C
Segmentation violation (core dumped)
# cd /usr/local/src/openssh-2.9.9p2
# gdb /usr/local/bin/ssh ~root/core
GNU gdb 19991004
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welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
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This GDB was configured as "i386-redhat-linux"...
(no debugging symbols found)...
Core was generated by `ssh -L 80:someplace.net:80 -l charlie someplace.net'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
Reading symbols from /lib/libnsl.so.1...done.
Reading symbols from /lib/libutil.so.1...done.
Reading symbols from /usr/lib/libcrypto.so.0...done.
Reading symbols from /lib/libcrypt.so.1...done.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
Reading symbols from /lib/libnss_files.so.2...done.
Reading symbols from /lib/libnss_nisplus.so.2...done.
Reading symbols from /lib/libnss_nis.so.2...done.
Reading symbols from /lib/libnss_dns.so.2...done.
Reading symbols from /lib/libresolv.so.2...done.
#0  0x4019d109 in chunk_free (ar_ptr=0x40231d40, p=0x808cf38) at malloc.c:3111
3111	malloc.c: No such file or directory.
(gdb) backtrace
#0  0x4019d109 in chunk_free (ar_ptr=0x40231d40, p=0x808cf38) at malloc.c:3111
#1  0x4019cf9a in __libc_free (mem=0x808cf40) at malloc.c:3023
#2  0x8067452 in error ()
#3  0x80534ab in EVP_get_digestbyname ()
#4  0x804d230 in EVP_get_digestbyname ()
#5  0x804c797 in EVP_get_digestbyname ()
#6  0x4015b9cb in __libc_start_main (
    main=0x804b9e4 <EVP_get_digestbyname+1116>, argc=6, argv=0xbffffb54, 
    init=0x804a898 <_init>, fini=0x80691dc <_fini>, 
    rtld_fini=0x4000aea0 <_dl_fini>, stack_end=0xbffffb4c)
    at ../sysdeps/generic/libc-start.c:92
(gdb) quit
#




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