Package: erlang Version: 1:17.0-dfsg-3 Usertags: goto-cc During a rebuild of all packages in a clean sid chroot (and cowbuilder+pbuilder) the build failed with the following error. Please note that we use our research compiler tool-chain (using tools from the cbmc package), which permits extended reporting on type inconsistencies at link time.
[...] LD /srv/jenkins-slave/workspace/sid-goto-cc-erlang/erlang-17.0-dfsg/bin/x86_64-pc-linux-gnu/beam.smp error: conflicting function declarations "erts_gzinflate_buffer" old definition in module beam_load file beam/beam_load.c line 46 struct erl_drv_binary * (char *, signed int) new definition in module gzio file drivers/common/gzio.c line 752 struct erl_drv_binary * (char *start, unsigned long int size) Reviewing the code at http://sources.debian.net/src/erlang/1:17.0-dfsg-3/erts/emulator/beam/beam_load.c#L46 http://sources.debian.net/src/erlang/1:17.0-dfsg-3/erts/emulator/drivers/common/gzio.c#L751 this appears particularly dangerous as the implementation of erts_gzinflate_buffer may read arbitrary memory beyond the desired allocation, because the high bytes of "size" will be uninitialised on systems with sizeof(long)!=sizeof(int). The maintainer may wish to adjust severity. Best, Michael
pgpKFx1UzmyZB.pgp
Description: PGP signature
