https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113752
Bug ID: 113752
Summary: [14 Regression] warning: ‘%s’ directive writing up to
10218 bytes into a region of size between 0 and 10240
[-Wformat-overflow=]
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Created attachment 57315
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57315&action=edit
A testcase
[hjl@gnu-tgl-2 tmp]$ /usr/gcc-14.0.1-x32-apx/bin/gcc -O3 -S x.i -Wall
In file included from tests-mbwc/tst_wctype.c:8:
tests-mbwc/tsp_common.c: In function ‘result.constprop.isra’:
tests-mbwc/tsp_common.c:55:24: warning: ‘%s’ directive writing up to 10218
bytes into a region of size between 0 and 10240 [-Wformat-overflow=]
tests-mbwc/tsp_common.c:55:3: note: ‘sprintf’ output between 18 and 20484 bytes
into a destination of size 10256
[hjl@gnu-tgl-2 tmp]$
GCC 13 is OK.
