libxml2 has no particular issues parsing HTML strings with NUL bytes;
these just cause truncation of the current text content, but parsing
continues generally. Since `::loadHTMLFile()` already supports NUL
bytes, `::loadHTML()` should as well.
Note that this is different from XML, which does not allow any NUL
bytes.
Fix #80258: Windows Deduplication Enabled, randon permission errors
A recent bug fix regarding symlinks claimed:
> After resolving reparse points, the path still may be a reparse
> point; in that case we have to resolve that reparse point as well.
While that is basically correct, some reparse points may point to
inaccessible system folders (e.g. `IO_REPARSE_TAG_DEDUP` points to
"\System Volume Information"). Since we don't know details about
arbitrary reparse points, and are mainly interested in nested symlinks,
we take a step back, and only resolve `IO_REPARSE_TAG_SYMLINK` for now.
Fix #80280: ADD_EXTENSION_DEP() fails for ext/standard and ext/date
`ADD_EXTENSION_DEP()` relies on the `PHP_<extname>` config variables to
be set to `"yes"`, and since the standard and date extension are always
enabled, we define the respective variables uncoditionally.
Nikita Popov [Thu, 22 Oct 2020 14:04:22 +0000 (16:04 +0200)]
Don't crash on uninitialized tidy object
"Uninitialized" here means that the object was created ordinarily
-- no constructor skipping involved. Most tidy methods seem to
handle this fine, but these three need to be guarded.
Fix #80242: imap_mail_compose() segfaults for multipart with rfc822
libc-client expects `TYPEMESSAGE` with an explicit subtype of `RFC822`
to have a `nested.msg` (otherwise there will be a segfault during
free), but not to have any `contents.text.data` (this will leak
otherwise).
In libc-client 2007f `data` is declared as `unsigned char *`; there may
be variants which declare it as `void *`, but in any case picky
compilers may warn about a pointer type mismatch in the conditional
(and error with `-W-error`), so we're adding a `char *` cast for good
measure.
The original fix for that bug[1] broke the formerly working composition
of message/rfc822 messages, which results in a segfault when freeing
the message body now. While `imap_mail_compose()` does not really
support composition of meaningful message/rfc822 messages (although
libc-client appears to support that), some code may still use this to
compose partial messages, and using string manipulation to create the
final message.
The point is that libc-client expects `TYPEMESSAGE` with an explicit
subtype of `RFC822` to have a `nested.msg` (otherwise there will be a
segfault during free), but not to have any `contents.text.data` (this
will leak otherwise).
Fix #64076: imap_sort() does not return FALSE on failure
If unsupported `$search_criteria` are passed to `imap_sort()`, the
function returns an empty array, but there is also an error on the
libc-client error stack ("Unknown search criterion: UNSUPPORTED
(errflg=2)"). If, on the other hand, unsupported `$criteria` or
unsupported `$flags` are passed, the function returns `false`. We
solve this inconsistency by returning `false` for unsupported
`$search_criteria` as well.
Unless `topbod` is of `TYPEMULTIPART`, `mail_free_body()` does not free
the `nested.part`; while we could do this ourselves, instead we just
ignore additional bodies in this case, i.e. we don't attach them in the
first place.
Nikita Popov [Mon, 12 Oct 2020 09:03:39 +0000 (11:03 +0200)]
Deindirect source elements in zend_hash_merge
If the RHS has INDIRECT elements, we do not those to be added to
the LHS verbatim. As we're using UPDATE_INDIRECT, we might even
create a nested INDIRECT that way.
Fix #77040: tidyNode::isHtml() is completely broken
The documentation of `tidyNode::isHtml()` states that this method
"checks if a node is part of a HTML document". That is, of course,
nonsense, since a tidyNode is "an HTML node in an HTML file, as
detected by tidy."
What this method is actually supposed to do is to check whether a node
is an element (unless it is the root element). This has been broken by
commit d8eeb8e[1], which assumed that `enum TidyNodeType` would
represent flags of a bitmask, what it does not.
There is no such thing as the "end of the unix epoch", and if it was,
it would certainly not be 2037-10-11T02:00:00. There is, however,
potential integer overflow which we need to avoid.
Fix #78470: odbc_specialcolumns() no longer accepts $nullable
It is mandatory to pass either `SQL_NO_NULLS` or `SQL_NULLABLE` as
tenth parameter to `SQLSpecialColumns()`; otherwise the function call
fails. Therefore the user must be allowed to pass the desired value
as parameter to `odbc_specialcolumns()` again.
Fix #76735: Incorrect message in fopen on invalid mode
We have to log errors in `stream_opener` callbacks to the wrapper's
error log, because otherwise we may pick up an unrelated `errno` or a
most generic message.
Fix #77493: curl_basic_009 fails with newer curl versions
libcurl 7.62.0 introduced a maximum protocol length of 8, so this test
case failed with `CURLE_URL_MALFORMAT`. While this is lifted to 40 as
of libcurl 7.65.0, and this test case has already been fixed with
commit e27301c[1], we restore the original intention to check for a
`CURLE_UNSUPPORTED_PROTOCOL ` error.
If restoring of any not registered built-in wrapper is requested, the
function is supposed to fail with a warning, so we have to check this
condition first.
Furthermore, to be able to detect whether a built-in wrapper has been
changed, it is not sufficient to check whether *any* userland wrapper
has been registered, but rather whether the specific wrapper has been
modified.
Fix #79423: copy command is limited to size of file it can copy
Passing `NULL` as `lpFileSizeHigh` to `GetFileSize()` gives wrong
results for files larger than 0xFFFFFFFF bytes. We fix this by using
`GetFileSizeEx()`, and let the mapping fail, if the file size is too
large for the architecture.
Daniel Black [Tue, 21 Jul 2020 06:23:14 +0000 (16:23 +1000)]
Fix #78179: mysqli/mysqlnd transaction extensions
MariaDB versioning created a mess with regarding testing
features based on version. We sidestep the problem here
by assuming the extensions are present, and if a syntax
error occurs with a SQL mode TRANS_START_READ_WRITE |
TRANS_START_READ_ONLY enabled, then output the same
warning as before.
> The size of BLOB/TEXT data inserted in one transaction is greater
> than 10% of redo log size. Increase the redo log size using
> innodb_log_file_size.
Fix bug #80107: Handling of large compressed packets
There's two layers of packet splitting going on. First, packets
need to be split into having a payload of exactly 2^24-1 bytes or
being the last packet. If the split packet has size between 2^24-5
and 2^24-1 bytes, the compressed packets also needs to be split,
though the choice of split doesn't matter here. I'm splitting off
the first 8192 bytes, as that's what I observe libmysqlclient to be
doing.
Add db2_execute() to the list of functions accessing the local
scope. Ideally the API wouldn't do that, but it seems most
pragmatic to address this on the opcache side at this point.
Fix #80067: Omitting the port in bindto setting errors
A recent commit[1] which fixed a memory leak introduced a regression
regarding the formerly liberal handling of IP addresses to bind to. We
fix this by reverting that commit, and fix the memory leak where it
actually occurs. In other words, this fix is less intrusive than the
former fix.
Fix #79825: opcache.file_cache causes SIGSEGV with custom opcode handlers
Modules may have changed after restart which can cause dangling pointers from custom opcode handlers in the second-level cache files. This fix includes the installed module names and versions in the accel_system_id hash as entropy. Closes GH-5836
> The domain names passed to getmxrr() do not contain a trailing dot.
> DNS lookups which do not find records will (depending on the local
> resolver config) try again by adding the local domain to the end of
> the searched host/domain. In many environments there's an mx record
> for any subdomain of the local domain and the MX query will return
> a hit. But the test expects no hit. So the test fails when checking
> that "qa.php.net" does not have an MX record in DNS. In our local
> environment the resolver falls back to also check qa.php.net.kippdata.de
> which does have an MX record. Using "qa.php.net." instead of "qa.php.net"
> should fix this for everyone.
Handle memory limit error during string reallocation correctly
Do not decrement the refcount before allocating the new string,
as the allocation operation may bail out and cause a use-after-free
lateron. We can only decrement the refcount once the allocation
has succeeded.
Fix throwing of yield from related exceptions into generator
Use the general zend_generator_throw_exception() helper for this.
Otherwise we don't handle the off-by-one opline correctly (should
we maybe just stop doing that?)
This is a followup to ad750c3bb6e7b48384c6265eb9d3bcf5b4000652,
which fixed a different yield from exception handling problem that
happened to show up in the same test case from oss-fuzz #25321.
Now both issues should be fixed.
Matteo Beccati [Mon, 31 Aug 2020 08:45:36 +0000 (10:45 +0200)]
Fix #80027 Terrible performance using $query->fetch on queries with many bind parameters
Added new flags that allow skipping param_evt(s) that are not used by drivers,
in a backwards and forward compatible manner. Updated the pgsql, mysql, sqlite
and oci drivers to properly use the new flags. I've left out pdo_dblib, which
doesn't have a param_hook, and pdo_firebird, which seems to be using
PARAM_EVT_NORMALIZE in a wrong context (param type vs event type).
Nikita Popov [Wed, 12 Aug 2020 08:09:37 +0000 (10:09 +0200)]
Make MAX_IFD_NESTING_LEVEL an actual nesting level
Currently we only ever increment ifd_nesting_level, so this ends up
being a limit on the total number of IFD tags and we regularly get
bug reports of it being exceeded. I think the intention behind this
limit was to prevent recursion stack overflow, and for that we only
need to check actual recursive usage. I've implemented that here,
and dropped the nesting limit down to a smaller value
(which still passes our tests).
However, it seems that we do also need to have a total limit on
the number of tags, as we don't catch some instances of infinite
looping otherwise. Add this as a separate limit with a higher
value, that should hopefully be sufficient.
projects / php / log