Re: [GIT PULL] Please pull NFS client changes for Linux 4.13

[davej@xxxxxxxxxxxxxxxxx]

On Mon, Jul 31, 2017 at 10:35:45PM -0700, Linus Torvalds wrote:
 > On Mon, Jul 31, 2017 at 8:43 AM, davej@xxxxxxxxxxxxxxxxx
 > <davej@xxxxxxxxxxxxxxxxx> wrote:
 > > Another NFSv4 KASAN splat, this time from rc3.
 > >
 > > BUG: KASAN: use-after-free in nfs4_exchange_id_done+0x3d7/0x8e0 [nfsv4]
 > 
 > Ugh. It's really hard to tell what access that it - KASAN doesn't
 > actually give enough information. There's lots of 8-byte accesses
 > there in that function.
 > 
 > Any chance of getting the output from
 > 
 >    ./scripts/faddr2line vmlinux nfs4_exchange_id_done+0x3d7/0x8e0
 

Hm, that points to this..

7463                 /* Save the EXCHANGE_ID verifier session trunk tests */
7464                 memcpy(clp->cl_confirm.data, cdata->args.verifier->data,
7465                        sizeof(clp->cl_confirm.data));

	Dave