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2f3655c9
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2025-05-20T19:40:06
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parser: Pop PEs that start markup declarations explicitly
We currently only handle "Validity constraint: Proper Declaration/PE
Nesting", but we must detect "Well-formedness constraint: PE Between
Declarations" separately:
> The replacement text of a parameter entity reference in a DeclSep must
> match the production extSubsetDecl.
PEs in DeclSeps are PEs that start with a full markup declaration (or
another PE). These are handled in xmParse{Internal|External}Subset. We
set a flag on these PEs and don't close them implicitly in
xmlSkipBlankCharsPE. This will make unterminated declarations in such
PEs cause a parser error. The PEs are closed explicitly in
xmParse{Internal|External}Subset, the only location where they are
allowed to end.
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05bd1720
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2025-03-01T10:25:29
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parser: Fix parsing of DTD content
Regressed in 2.11. Fixes #868.
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e8fb3d63
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2024-01-02T17:45:54
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parser: Convert some "internal errors" to meaningful codes
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74aa61e0
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2023-01-22T13:09:03
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parser: Halt parser on DTD errors
If we try to continue parsing after an error in the internal or external
subset, entity expansion accounting gets more complicated. Simply halt
the parser.
Found with libFuzzer.
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76c6da42
|
2022-12-04T23:01:00
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error: Make sure that error messages are valid UTF-8
This has caused issues with the Python bindings for a long time.
Should fix #64.
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68a6518c
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2022-11-15T18:23:33
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parser: Rewrite push parser boundary checks
Remove inaccurate xmlParseCheckTransition check.
Remove non-incremental xmlParseGetLasts check.
Add functions that check for several boundary constructs more
accurately, keeping track of progress in ctxt->checkIndex.
Fixes #439.
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00906759
|
2016-01-26T16:57:03
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Heap-based buffer-underreads due to xmlParseName
For https://bugzilla.gnome.org/show_bug.cgi?id=759573
* parser.c:
(xmlParseElementDecl): Return early on invalid input to fix
non-minimized test case (759573-2.xml). Otherwise the parser
gets into a bad state in SKIP(3) at the end of the function.
(xmlParseConditionalSections): Halt parsing when hitting invalid
input that would otherwise caused xmlParserHandlePEReference()
to recurse unexpectedly. This fixes the minimized test case
(759573.xml).
* result/errors/759573-2.xml: Add.
* result/errors/759573-2.xml.err: Add.
* result/errors/759573-2.xml.str: Add.
* result/errors/759573.xml: Add.
* result/errors/759573.xml.err: Add.
* result/errors/759573.xml.str: Add.
* test/errors/759573-2.xml: Add.
* test/errors/759573.xml: Add.
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