[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 Jonathan Wakely changed: What|Removed |Added Target Milestone|11.4|10.5 --- Comment #6 from Jonathan Wakely --- Backported for 10.5 too.
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 --- Comment #5 from CVS Commits --- The releases/gcc-10 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:fab3692a2cf961b7364d7f77dd976ba0e4f752b7 commit r10-11467-gfab3692a2cf961b7364d7f77dd976ba0e4f752b7 Author: Jonathan Wakely Date: Mon Aug 22 15:16:16 2022 +0100 libstdc++: Check for overflow in regex back-reference [PR106607] Currently we fail to notice integer overflow when parsing a back-reference expression, or when converting the parsed result from long to int. This changes the result to be int, so no conversion is needed, and uses the overflow-checking built-ins to detect an out-of-range back-reference. libstdc++-v3/ChangeLog: PR libstdc++/106607 * include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value): Use built-ins to check for integer overflow in back-reference number. * testsuite/28_regex/basic_regex/106607.cc: New test. (cherry picked from commit 1b09eea33f2bf9d1eae73b25cc25efb05ea1dc3f)
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 Jonathan Wakely changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Target Milestone|--- |11.4 --- Comment #4 from Jonathan Wakely --- Fixed for 12.3 and 11.4
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 --- Comment #3 from CVS Commits --- The releases/gcc-11 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:d023d805d9e20c3f46654dc7ea96c9228d650ddb commit r11-10243-gd023d805d9e20c3f46654dc7ea96c9228d650ddb Author: Jonathan Wakely Date: Mon Aug 22 15:16:16 2022 +0100 libstdc++: Check for overflow in regex back-reference [PR106607] Currently we fail to notice integer overflow when parsing a back-reference expression, or when converting the parsed result from long to int. This changes the result to be int, so no conversion is needed, and uses the overflow-checking built-ins to detect an out-of-range back-reference. libstdc++-v3/ChangeLog: PR libstdc++/106607 * include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value): Use built-ins to check for integer overflow in back-reference number. * testsuite/28_regex/basic_regex/106607.cc: New test. (cherry picked from commit 1b09eea33f2bf9d1eae73b25cc25efb05ea1dc3f)
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 --- Comment #2 from CVS Commits --- The releases/gcc-12 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:87da20c6e280925d885c5472de9189515f46880b commit r12-8746-g87da20c6e280925d885c5472de9189515f46880b Author: Jonathan Wakely Date: Mon Aug 22 15:16:16 2022 +0100 libstdc++: Check for overflow in regex back-reference [PR106607] Currently we fail to notice integer overflow when parsing a back-reference expression, or when converting the parsed result from long to int. This changes the result to be int, so no conversion is needed, and uses the overflow-checking built-ins to detect an out-of-range back-reference. libstdc++-v3/ChangeLog: PR libstdc++/106607 * include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value): Use built-ins to check for integer overflow in back-reference number. * testsuite/28_regex/basic_regex/106607.cc: New test. (cherry picked from commit 1b09eea33f2bf9d1eae73b25cc25efb05ea1dc3f)
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 --- Comment #1 from CVS Commits --- The master branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:1b09eea33f2bf9d1eae73b25cc25efb05ea1dc3f commit r13-2143-g1b09eea33f2bf9d1eae73b25cc25efb05ea1dc3f Author: Jonathan Wakely Date: Mon Aug 22 15:16:16 2022 +0100 libstdc++: Check for overflow in regex back-reference [PR106607] Currently we fail to notice integer overflow when parsing a back-reference expression, or when converting the parsed result from long to int. This changes the result to be int, so no conversion is needed, and uses the overflow-checking built-ins to detect an out-of-range back-reference. libstdc++-v3/ChangeLog: PR libstdc++/106607 * include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value): Use built-ins to check for integer overflow in back-reference number. * testsuite/28_regex/basic_regex/106607.cc: New test.
[Bug libstdc++/106607] Regex integer overflow on large backreference value
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106607 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Ever confirmed|0 |1 Last reconfirmed||2022-08-22 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
