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gawk crash with long floating-point numbers


From: Joseph S. Myers
Subject: gawk crash with long floating-point numbers
Date: Thu, 3 Nov 2005 22:59:03 +0000 (UTC)

Running "gawk -f zex2 </dev/null" with the attached testcase script zex2 
yields a crash with gawk 3.1.5 on i686-pc-linux-gnu:

9999999999999999860310597602564577717002641838126363875249660735883565852672743849064846414228960666786379280392654615393353172850252103336275952370615397010730691664689375178569039851073146339641623266071126720011020169553304018596457812688561947201171488461172921822139066929851282122002676667750021070848.000000
 
9999999999999999860310597602564577717002641838126363875249660735883565852672743849064846414228960666786379280392654615393353172850252103336275952370615397010730691664689375178569039851073146339641623266071126720011020169553304018596457812688561947201171488461172921822139066929851282122002676667750021070848.000000***
 
glibc detected *** double free or corruption (!prev): 0x080979a8 ***
Aborted (core dumped)

As glibc detecting corruption of malloc data, the exact symptoms may vary 
from system to system; another gave "*** glibc detected *** free(): 
invalid next size (normal): 0x00000000006481a0 ***".

-- 
Joseph S. Myers
address@hidden

Attachment: zex2
Description: Text document


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