George Koehler 85fcbde22f Check LOI expressions to prevent a read after free. ... CS eliminates outer expressions before inner ones, as `x * y * z` before `x * y`. It does this by reversing the order of expressions in the code. This almost always works, but it sometimes doesn't work if a STI changes the value number of a LOI. In code like `expr1 LOI expr2 STI expr2 LOI`, CS might eliminate the inner `expr2` before the outer `expr2 LOI`. This caused a read after free because the occurrence of `expr2 LOI` pointed to the eliminated lines of `expr2`. This bug went unnoticed until my recent changes caused CS to crash with a double free. I did not get the crash in OpenBSD, but I saw the crash in Travis, then David Given reproduced the crash in Linux. See the discussion in https://github.com/davidgiven/ack/pull/73		2018-03-12 20:58:31 -04:00
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ack	strcmp, strncmp are in <string.h>	2017-11-14 17:35:35 -05:00
amisc	Rename RELOLIS to RELOPPC_LIS.	2017-10-18 15:39:31 -04:00
arch	Stop using mktemp() --- on Haiku, it always generates the same filenames,	2017-08-06 13:22:05 +02:00
ass	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
build	Run all tests, even the ones which fail, and emit a test summary right at the	2016-12-01 23:03:30 +01:00
byacc	Stop using mktemp() --- on Haiku, it always generates the same filenames,	2017-08-06 13:22:05 +02:00
ceg	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
cgg	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
cmisc	Check each format string in tabgen.c	2017-11-13 20:59:03 -05:00
cpp	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
ego	Check LOI expressions to prevent a read after free.	2018-03-12 20:58:31 -04:00
flex	Stop using mktemp() --- on Haiku, it always generates the same filenames,	2017-08-06 13:22:05 +02:00
grind	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
int	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
led	Delete old "assert.h" files; use libc <assert.h>.	2017-11-09 22:22:13 -05:00
LLgen	Merge pull request #69 from kernigh/kernigh-stdc	2017-11-19 12:00:40 +01:00
make	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
mcgg	Restore an assignment deleted in commit 789f79b.	2017-11-07 23:52:52 -05:00
misc	Use <stdarg.h> in util/misc/convert.c	2017-12-06 17:09:12 -05:00
ncgg	strcmp, strncmp are in <string.h>	2017-11-14 17:35:35 -05:00
opt	Delete old "assert.h" files; use libc <assert.h>.	2017-11-09 22:22:13 -05:00
shf	Distributions are a pain --- let's not bother any more. Instead, we just tag	2016-09-02 23:00:38 +02:00
topgen	strcmp, strncmp are in <string.h>	2017-11-14 17:35:35 -05:00