Package: libc6
Version: 2.3.6.ds1-7
Severity: serious
Hello,
Upgadring my etch system this morning, I saw that iconvconfig segfaults:
zsh: segmentation fault iconvconfig
Little debug info:
# ltrace iconvconfig 2>&1 | tail -20
mempcpy(0x9e819e6, 0x9e6a2d4, 8, 0xd9a4f8, 0xbff428d8) = 0x9e819ee
mempcpy(0x9e819ee, 0x9e65cd9, 13, 0xb7f2fab0, 0xbff428d8) = 0x9e819fb
mempcpy(0x9e819fb, 0x9e6d813, 15, 0xb7f2fab0, 0xbff428d8) = 0x9e81a0a
mempcpy(0x9e81a0a, 0x9e5a077, 19, 0xbff42900, 0xbff428d8) = 0x9e81a1d
mempcpy(0x9e81a1d, 0x9e5a601, 13, 0xb7f2fab0, 0xbff428d8) = 0x9e81a2a
mempcpy(0x9e81a2a, 0x9e6d74e, 10, 0xb7f2fab0, 0xbff428d8) = 0x9e81a34
mempcpy(0x9e81a34, 0x9e5a1e1, 13, 0xbff42900, 0xbff428d8) = 0x9e81a41
mempcpy(0x9e81a41, 0x9e5a341, 13, 0xbff42900, 0xbff428d8) = 0x9e81a4e
mempcpy(0x9e81a4e, 0x9e69e83, 15, 0xd9a4f8, 0xbff428d8) = 0x9e81a5d
mempcpy(0x9e81a5d, 0x9e6bb9c, 16, 0xd9a4f8, 0xbff428d8) = 0x9e81a6d
mempcpy(0x9e81a6d, 0x9e68c8f, 19, 0xb7f2fab0, 0xbff428d8) = 0x9e81a80
mempcpy(0x9e81a80, 0x9e6cbce, 10, 0xb7f2fab0, 0xbff428d8) = 0x9e81a8a
mempcpy(0x9e81a8a, 0x9e600a9, 13, 0xbff42900, 0xbff428d8) = 0x9e81a97
mempcpy(0x9e81a97, 0x9e664e6, 10, 0xbff42900, 0xbff428d8) = 0x9e81aa1
mempcpy(0x9e81aa1, 0x9e6bef5, 17, 0xbff42900, 0xbff428d8) = 0x9e81ab2
mempcpy(0x9e81ab2, 0x9e6d8e8, 20, 0xbff42900, 0xbff428d8) = 0x9e81ac6
calloc(1657, 4) = 0x9e81ad0
twalk(0x9e71ce8, 0xbff429f0, 0, 1, 0x7273752f <unfinished ...>
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
# strace iconvconfig 2>&1 | tail -20
read(3, "ule\tINTERNAL\t\tISO-8859-3//\t\tISO8"..., 4096) = 4096
read(3, "lias\tISO-IR-199//\t\tISO-8859-14//"..., 4096) = 4096
read(3, "\t\tto\t\t\tmodule\t\tcost\nalias\tCSEBCD"..., 4096) = 4096
read(3, "ule\t\tcost\nalias\tCP284//\t\t\tIBM284"..., 4096) = 4096
read(3, "lias\tCP864//\t\t\tIBM864//\nalias\t86"..., 4096) = 4096
read(3, "module\tIBM937//\t\tINTERNAL\t\tIBM93"..., 4096) = 4096
read(3, "\tEUC-JP//\nalias\tUJIS//\t\t\tEUC-JP/"..., 4096) = 4096
read(3, "module\t\tcost\nalias\tISO-IR-143//\t"..., 4096) = 4096
read(3, "-BOX//\nmodule\tISO_10367-BOX//\t\tI"..., 4096) = 4096
read(3, "module\tINTERNAL\t\tEUC-JISX0213//\t"..., 4096) = 604
brk(0x9592000) = 0x9592000
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7fa1000, 4096) = 0
gettimeofday({1162645671, 976589}, NULL) = 0
getpid() = 4648
open("/usr/lib/gconv/gconv-modules.cache.nHF7Mg", O_RDWR|O_CREAT|O_EXCL,
0600) = 3
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Process 4648 detached
(gdb) run
Starting program: /usr/sbin/iconvconfig
Failed to read a valid object file image from memory.
(no debugging symbols found)
(no debugging symbols found)
Program received signal SIGSEGV, Segmentation fault.
0x0026a733 in tfind () from /lib/tls/libc.so.6
FWIW, my kernel is Debian 2.6.18 recompiled with exec-shield patch, so
it might come from that. With kernel 2.6.17-2-686 I don't have this problem.
However, I suspect that this is a bug from iconvconfig anyway.
Do not hesitate to ask for more debug output if needed.
Cheers,
--
Julien Danjou
// Λ̊ <julien@danjou.info> http://julien.danjou.info
// 9A0D 5FD9 EB42 22F6 8974 C95C A462 B51E C2FE E5CD
// I'm no superman.
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