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Potential bufferflow in getpwent(), getpwnam() and getpwuid()

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PR: bin/4134
Submitted by:	nick@foobar.org
This commit is contained in:
wosch 1997-09-14 18:16:11 +00:00
parent 37fbc2eca7
commit 5c10b1ba45
1 changed files with 7 additions and 2 deletions
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9
lib/libc/gen/getpwent.c
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@ -293,8 +293,13 @@ __hashpw(key)
if ((_pw_db->get)(_pw_db, key, &data, 0))
return(0);
p = (char *)data.data;
if (data.size > max && !(line = realloc(line, max += 1024)))
return(0);
/* increase buffer size for long lines if necessary */
if (data.size > max) {
max = data.size + 1024;
if (!(line = realloc(line, max)))
return(0);
}
/* THIS CODE MUST MATCH THAT IN pwd_mkdb. */
t = line;