The bound on log(2)/3 on the second line is incorrect and has an extra
zero compared to the divisions in the third line. log(2)/3 = 0.10034...
which is bounded by 0.101 and not 0.1001. The divisions actually
correspond to 0.101 which is fine. The third line also dropped a factor
of three.
The actual code appears to be fine. Just the comments are wrong.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Original strategy for page-walking was adjust stack pointer and then
touch pages in order. This kind of asks for double-fault, because
if touch fails, then signal will be delivered to frame above adjusted
stack pointer. But touching pages prior adjusting stack pointer would
upset valgrind. As compromise let's adjust stack pointer in pages,
touching top of the stack. This still asks for double-fault, but at
least prevents corruption of neighbour stack if allocation is to
overstep the guard page.
Also omit predict-non-taken hints as they reportedly trigger illegal
instructions in some VM setups.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Fix an off by one error in the overflow check added by 07bed46f33
("Check for errors in BN_bn2dec()").
Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
If an oversize BIGNUM is presented to BN_bn2dec() it can cause
BN_div_word() to fail and not reduce the value of 't' resulting
in OOB writes to the bn_data buffer and eventually crashing.
Fix by checking return value of BN_div_word() and checking writes
don't overflow buffer.
Thanks to Shi Lei for reporting this bug.
CVE-2016-2182
Reviewed-by: Tim Hudson <tjh@openssl.org>
extra spacing and 80 cols
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1366)
Fix some indentation at the same time
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1292)
Now that INCLUDE considers both the source and build trees, no need
for the rel2abs perl fragment hacks any more.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1264)
As of 37258dadaa and the corresponding upstream
change, BN_mod_word may fail, like BN_div_word. Handle this properly. Thanks to
Brian Smith for pointing this out. See BoringSSL's
44bedc348d9491e63c7ed1438db100a4b8a830be.
Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #1251
This function returns a tri-state -1 on error. See BoringSSL's
53409ee3d7595ed37da472bc73b010cd2c8a5ffd.
Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #1251
Files like dh.pod, etc., mostly duplicated the API-specific pod files.
Removed the duplicated content; that often mean the whole file could
be removed. Some of the content about internals got moved into README
files in the source tree. Some content (e.g., err.pod) got moved
into other pod pages.
Annotate generic pages, remove dup NAME
Reviewed-by: Richard Levitte <levitte@openssl.org>
On systems where we do not have BN_ULLONG (e.g. typically 64 bit systems)
then BN_mod_word() can return incorrect results if the supplied modulus is
too big.
RT#4501
Reviewed-by: Andy Polyakov <appro@openssl.org>
Numerous test failures were occuring when Configured with enable-ubsan
although they could all be traced back to one issue.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Add copyright to missing assembler files.
Add copyrights to missing test/* files.
Add copyrights
Various source and misc files.
Reviewed-by: Richard Levitte <levitte@openssl.org>
When RAND_pseudo_bytes() was replaced with RAND_bytes(), this case
was not reduced to a simple RAND_bytes() call.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1117)
Commit 91fb42dd fixed a leak but introduced a problem where a parameter
is erroneously freed instead.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
In BN_generate_prime_ex() we do some sanity checks first and return
with an error if they fail. We should do that *before* allocating any
resources to avoid a memory leak.
Reviewed-by: Richard Levitte <levitte@openssl.org>
In the BN_mpi2bn() function, a failure of a call to BN_bin2bn() could
result in the leak of a previously allocated BIGNUM value.
Reviewed-by: Richard Levitte <levitte@openssl.org>
The Unix build was the last to retain the classic build scheme. The
new unified scheme has matured enough, even though some details may
need polishing.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add copyright to most .pl files
This does NOT cover any .pl file that has other copyright in it.
Most of those are Andy's but some are public domain.
Fix typo's in some existing files.
Reviewed-by: Richard Levitte <levitte@openssl.org>
