[Pkg-xen-devel] Bug#1042102: xen FTBFS with gcc 13

[Adrian Bunk]

Source: xen
Version: 4.17.1+2-gb773c48e36-1
Severity: serious
Tags: ftbfs trixie sid
Forwarded: https://github.com/xen-project/xen/commit/99a9c3d7141063ae3f357892c6181cfa3be8a280

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/xen.html

...
xg_offline_page.c: In function 'backup_ptes':
xg_offline_page.c:191:13: error: pointer 'orig' may be used after 'realloc' [-Werror=use-after-free]
  191 |             free(orig);
      |             ^~~~~~~~~~
xg_offline_page.c:186:27: note: call to 'realloc' here
  186 |         backup->entries = realloc(
      |                           ^~~~~~~~
  187 |             orig, backup->max * 2 * sizeof(struct pte_backup_entry));
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[8]: *** [/build/1st/xen-4.17.1+2-gb773c48e36/tools/libs/guest/../../../tools/Rules.mk:190: xg_offline_page.o] Error 1