https://llvm.org/bugs/show_bug.cgi?id=31387
Bug ID: 31387
Summary: basic_regex::__parse_decimal_escape doesn't check if
__first reaches __last
Product: libc++
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: ka...@codesynthesis.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Classification: Unclassified
The basic_regex::__parse_decimal_escape() function implementation (svn repo
revision 289795) has the following cycle:
for (++__first; '0' <= *__first && *__first <= '9'; ++__first)
__v = 10 * __v + *__first - '0';
Note that it increments and dereferences the __first iterator not checking if
it has already reached the __last iterator value.
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