[Qemu-devel] [PATCH 0/2] block: Fix gcc 7 warnings

[Max Reitz <mreitz@redhat.com>]

blkdebug and blkverify use snprintf() to generate a filename; however,
that may not fit into the target buffer (BDS.exact_filename). If so,
they generate a truncated and thus pretty much unusable filename. In
this case it's better to just not generate a filename at all (until we
have better infrastructure which is not bound by a static buffer size).

Also, gcc 7 warns about these snprintf() instances and these patches fix
these warnings. There is another one in hw/usb/bus.c which is not
addressed by this series.

Max Reitz (2):
  blkdebug: Catch bs->exact_filename overflow
  blkverify: Catch bs->exact_filename overflow

 block/blkdebug.c  | 10 +++++++---
 block/blkverify.c | 12 ++++++++----
 2 files changed, 15 insertions(+), 7 deletions(-)

-- 
2.9.4