Benjamin LaHaise <bcrl@xxxxxxxxx> writes: > On Tue, Jun 24, 2014 at 02:23:20PM -0400, Jeff Moyer wrote: >> Benjamin LaHaise <bcrl@xxxxxxxxx> 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 <jmoyer@xxxxxxxxxx> > > Can you post the backport for 3.10 so the -stable folks have something they > can use that was tested? Cheers, Sure thing. Cheers, Jeff -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html