https://bugzilla.novell.com/show_bug.cgi?id=700229 https://bugzilla.novell.com/show_bug.cgi?id=700229#c0 Summary: telnet crashes glibc when using "-b" parameter Classification: openSUSE Product: openSUSE 11.4 Version: Factory Platform: x86-64 OS/Version: openSUSE 11.4 Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: novell-web@zmi.at QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 I wanted telnet to source from another IP, using "-b" parameter: # telnet -b eth1 10.10.10.10 Trying 10.10.10.10... telnet: eth1: Name or service not known: Success Speicherzugriffsfehler I tried that twice, then looked into dmesg: [60254.321495] telnet[28275] general protection ip:7f733a452a63 sp:7fff6839fbe0 error:0 in libc-2.11.3.so[7f733a393000+164000] [60350.030095] telnet[29348] general protection ip:7f7169480a63 sp:7fff37e01070 error:0 in libc-2.11.3.so[7f71693c1000+164000] This is on openSUSE 11.4, but I first discovered it in 11.2, where it puts more details on the screen: # telnet -b eth0:1 10.127.128.5 25 Trying 10.127.128.5... telnet: eth0:1: Name or service not known: Success *** glibc detected *** telnet: munmap_chunk(): invalid pointer: 0x00007fff0a06ace8 *** ======= Backtrace: ========= /lib64/libc.so.6[0x7f825d605d06] /lib64/libc.so.6(freeaddrinfo+0x20)[0x7f825d64d510] telnet[0x7f825dd61939] telnet(main+0x34f)[0x7f825dd5a1ff] /lib64/libc.so.6(__libc_start_main+0xfd)[0x7f825d5b1a7d] telnet[0x7f825dd59d59] ======= Memory map: ======== 7f825cf6b000-7f825cf81000 r-xp 00000000 ca:01 16518 /lib64/libgcc_s.so.1 7f825cf81000-7f825d180000 ---p 00016000 ca:01 16518 /lib64/libgcc_s.so.1 7f825d180000-7f825d181000 r--p 00015000 ca:01 16518 /lib64/libgcc_s.so.1 7f825d181000-7f825d182000 rw-p 00016000 ca:01 16518 /lib64/libgcc_s.so.1 7f825d182000-7f825d18d000 r-xp 00000000 ca:01 3184 /lib64/libnss_files-2.10.1.so 7f825d18d000-7f825d38d000 ---p 0000b000 ca:01 3184 /lib64/libnss_files-2.10.1.so 7f825d38d000-7f825d38e000 r--p 0000b000 ca:01 3184 /lib64/libnss_files-2.10.1.so 7f825d38e000-7f825d38f000 rw-p 0000c000 ca:01 3184 /lib64/libnss_files-2.10.1.so 7f825d38f000-7f825d391000 r-xp 00000000 ca:01 17973 /lib64/libdl-2.10.1.so 7f825d391000-7f825d591000 ---p 00002000 ca:01 17973 /lib64/libdl-2.10.1.so 7f825d591000-7f825d592000 r--p 00002000 ca:01 17973 /lib64/libdl-2.10.1.so 7f825d592000-7f825d593000 rw-p 00003000 ca:01 17973 /lib64/libdl-2.10.1.so 7f825d593000-7f825d6e4000 r-xp 00000000 ca:01 3936 /lib64/libc-2.10.1.so 7f825d6e4000-7f825d8e4000 ---p 00151000 ca:01 3936 /lib64/libc-2.10.1.so 7f825d8e4000-7f825d8e8000 r--p 00151000 ca:01 3936 /lib64/libc-2.10.1.so 7f825d8e8000-7f825d8e9000 rw-p 00155000 ca:01 3936 /lib64/libc-2.10.1.so 7f825d8e9000-7f825d8ee000 rw-p 00000000 00:00 0 7f825d8ee000-7f825d92c000 r-xp 00000000 ca:01 3177 /lib64/libncurses.so.5.6 7f825d92c000-7f825db2b000 ---p 0003e000 ca:01 3177 /lib64/libncurses.so.5.6 7f825db2b000-7f825db2f000 r--p 0003d000 ca:01 3177 /lib64/libncurses.so.5.6 7f825db2f000-7f825db35000 rw-p 00041000 ca:01 3177 /lib64/libncurses.so.5.6 7f825db35000-7f825db53000 r-xp 00000000 ca:01 4324 /lib64/ld-2.10.1.so 7f825dd26000-7f825dd28000 rw-p 00000000 00:00 0 7f825dd4f000-7f825dd52000 rw-p 00000000 00:00 0 7f825dd52000-7f825dd53000 r--p 0001d000 ca:01 4324 /lib64/ld-2.10.1.so 7f825dd53000-7f825dd54000 rw-p 0001e000 ca:01 4324 /lib64/ld-2.10.1.so 7f825dd54000-7f825dd6a000 r-xp 00000000 ca:01 9058 /usr/bin/telnet 7f825df6a000-7f825df6b000 r--p 00016000 ca:01 9058 /usr/bin/telnet 7f825df6b000-7f825df6d000 rw-p 00017000 ca:01 9058 /usr/bin/telnet 7f825df6d000-7f825df9b000 rw-p 00000000 00:00 0 [heap] 7fff0a058000-7fff0a06d000 rw-p 00000000 00:00 0 [stack] 7fff0a098000-7fff0a099000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Abgebrochen Seems this bug dates a while back. While 11.2 is not in bugfix phase anymore, 11.3 and 11.4 should be fixed, please. Reproducible: Always Steps to Reproduce: 1. use "telnet -b eth0 <IP address>" Actual Results: crash in glibc Expected Results: should work :-) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.