Benjamin LaHaise <b...@kvack.org> writes: > A kernel memory disclosure was introduced in aio_read_events_ring() in v3.10 > by commit a31ad380bed817aa25f8830ad23e1a0480fef797. The changes made to > aio_read_events_ring() failed to correctly limit the index into > ctx->ring_pages[], allowing an attacked to cause the subsequent kmap() of > an arbitrary page with a copy_to_user() to copy the contents into userspace. > This vulnerability has been assigned CVE-2014-0206. Thanks to Mateusz and > Petr for disclosing this issue. > > This patch applies to v3.12+. A separate backport is needed for 3.10/3.11.
Note that a 3.10 backport will need to remove this line from free_ioctx as well: atomic_sub(avail, &ctx->reqs_active); Reviewed-by: Jeff Moyer <jmo...@redhat.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/