Mathieu Trudel-Lapierre (mathieu-tl) you are extreme optimistic:
Feb 20 13:42:41 oak kernel: [23799.840389] usb_modeswitch_[32188]: segfault at
4beeb4 ip b76160d6 sp bff20ba0 error 4 in libc-2.17.so[b759c000+1ae000]
Feb 20 13:50:02 oak kernel: [24240.638396] usb_modeswitch_[32254]: segfault at
4b0eb4 ip b75fa0d6 sp bfbc0040 error 4 in libc-2.17.so[b7580000+1ae000]
Feb 20 13:50:15 oak kernel: [24253.583514] usb_modeswitch_[32269]: segfault at
227eb4 ip b760a0d6 sp bffeddb0 error 4 in libc-2.17.so[b7590000+1ae000]
ubuntu 13.10, 12.LTS
huawei e171 (12d1/155b)
kernel 3.11.0-17-generic
usb-modem-manager 1.2.3+repack0
(gdb) bt (recompiled with -g)
#0 _IO_new_fclose (fp=0x392f68) at iofclose.c:49
#1 0x0804d670 in read_attrs (subsystem=0x8050334 "USB", dev_type=0x8052208
<usb>,
attr_list=0x8052160 <usb_attrs>, dir=0x939a020 "/sys/bus/usb/devices/1-1")
at usb_modeswitch_dispatcher.c:1717
#2 0x0804d794 in read_usb_attrs (dir=0x939a020 "/sys/bus/usb/devices/1-1",
ifdir=0x0)
at usb_modeswitch_dispatcher.c:1743
#3 0x0804961a in main (argc=4, argv=0xbf95f2c4) at
usb_modeswitch_dispatcher.c:319
run diag:
if ((rc = fopen(attr_path, "r")) != NULL) {
+ printf("f before =%p\n", rc);
if (fgets(value, PATH_MAX, rc) != NULL) {
dev_type[i]->value = strdup(rtrim(value));
}
else {
dev_type[i]->value = 0;
}
+ printf("f after =%p\n", rc);
fclose(rc);
}
run:
/home/opa/works/tst/vagon/huawei_e171/usb-modeswitch-1.2.3+repack0/usb_modeswitch_dispatcher
--switch-mode /1-1:1.0 /lib/udev/usb_modeswitch
f before =0x9b66f68
f after =0x9b66f68
f before =0x9b66f68
f after =0x9b66f68
f before =0x9b66f68
f after =0xb66f68
Where is 9?
and fuck you Mathieu Trudel-Lapierre :
--- usb_modeswitch_dispatcher.c.orig 2014-02-20 15:08:44.665397121 +0700
+++ usb_modeswitch_dispatcher.c 2014-02-20 17:04:27.269572144 +0700
@@ -838,7 +838,7 @@
{
char* back = s + strlen(s);
- while(isspace(*--back));
+ while(back>=s && isspace(*--back));
*(back+1) = '\0';
WTF: bus_id[strlen(bus_id)] = '\0';
Mathieu, please use php and never use c.
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https://bugs.launchpad.net/bugs/927954
Title:
Mobile broadband device causes segfault when plugged in (segfault in
libc6 when using usb-modeswitch)
To manage notifications about this bug go to:
https://bugs.launchpad.net/usb-modeswitch/+bug/927954/+subscriptions
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