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don't compare unsigned values as negative ones

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Instead, check that the result is larger than its parts.

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Tycho Andersen 2015-04-13 16:43:30 -06:00 committed by Stéphane Graber
parent e97aa8176f
commit 69f97e3c12
1 changed files with 3 additions and 2 deletions
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5
src/lxc/utils.c
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@ -1645,12 +1645,13 @@ int setproctitle(char *title)
env_start = env_end;
}
arg_end = arg_start + len;
/* check overflow */
if (arg_start + len < 0) {
if (arg_end < len || arg_end < arg_start) {
return -1;
}
arg_end = arg_start + len;
}
strcpy((char*)arg_start, title);