On Mon, Feb 5, 2018 at 1:39 PM, Tels <nospam-ab...@bloodgate.com> wrote: > Are the uninitialized bytes that are written out "whatever was in the > memory previously" or just some "0x00 bytes from the allocation but not > yet overwritten from the PG code"? > > Because the first sounds like it could be a security problem - if random > junk bytes go out to the disk, and stay there, information could > inadvertedly leak to permanent storage.
But you can say the same thing about *any* of the write()-of-uninitialized-bytes Valgrind suppressions that already exist. There are quite a few of those. That just isn't part of our security model. -- Peter Geoghegan