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| author | Paul Dreik <gccpatches@pauldreik.se> | 2023-08-24 11:43:43 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2023-08-24 13:44:38 +0100 |
| commit | dd4bdb9eea436bf06f175d8dbfc2190377455be4 (patch) | |
| tree | d5ef7fffbfe16fe365849a03e15940be0aa825c4 /gcc/fortran/data.cc | |
| parent | d6271d600d5a181b37093c8984990806a743f16a (diff) | |
| download | gcc-dd4bdb9eea436bf06f175d8dbfc2190377455be4.zip gcc-dd4bdb9eea436bf06f175d8dbfc2190377455be4.tar.gz gcc-dd4bdb9eea436bf06f175d8dbfc2190377455be4.tar.bz2 | |
libstdc++: fix illegal pointer arithmetic in format [PR111102]
When parsing a format string, the width is parsed into an unsigned short
but the result is not checked in the case the format string is not a
char string (such as a wide string). In case the parse fails, a null
pointer is returned which is used for pointer arithmetic which is
undefined behaviour.
Signed-off-by: Paul Dreik <gccpatches@pauldreik.se>
libstdc++-v3/ChangeLog:
PR libstdc++/111102
* include/std/format (__format::__parse_integer): Check for
non-null pointer.
Diffstat (limited to 'gcc/fortran/data.cc')
0 files changed, 0 insertions, 0 deletions