On Wed, Aug 30, 2017 at 06:33:41PM +0200, Stephan Mueller wrote: > Am Dienstag, 22. August 2017, 08:33:15 CEST schrieb Herbert Xu: > > Hi Herbert, > > > On Thu, Aug 10, 2017 at 08:06:18AM +0200, Stephan Müller wrote: > > > Hi Herbert, > > > > > > I found that issue while playing around with edge conditions in my > > > algif_akcipher implementation. This issue only manifests in a > > > segmentation violation on 32 bit machines and with an SGL where each > > > SG points to one byte. SGLs with larger buffers seem to be not > > > affected by this issue. > > > > > > Yet this access-after-unmap should be a candidate for stable, IMHO. > > > > Good catch. Thanks! > > > > Fixes: 4816c9406430 ("lib/mpi: Fix SG miter leak") > > Cc: <stable@xxxxxxxxxxxxxxx> > > Just to confirm: stable is not CCed in this email -- did you send it > separately to stable? (dto for "[PATCH v4] crypto: only call put_page on > referenced and used pages") The cc is meant to go into the commit and when the commit hits mainline it'll automatically get picked up by stable. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt