APPLIED[Xenial/backlog]: [SRU][Xenial][PATCH 0/1] s390/qeth: fix L3 next-hop in xmit qeth hdr

[Kleber Souza]

On 03/01/18 20:01, Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1750813
> 
> == SRU Justification ==
> The current code accesses rtable->rt_gateway without checking that rtable 
> is a valid address. The accidental access to a lowcore area results in a 
> random next-hop address in the qeth_hdr.  rtable (or more precisely, 
> skb_dst(skb)) can be NULL in rare cases (for instance together with AF_PACKET sockets).
> 
> The solution is to add the missing NULL-ptr checks, which is done by commit ec2c6726322f.
> 
> Commit ec2c6726322f is in mainline as of v4.13-rc5, so this fix is only needed in Xenial.
> 
> == Fix ==
> ec2c6726322f ("s390/qeth: fix L3 next-hop in xmit qeth hdr")
> 
> == Regression Potential ==
> Low.  Limited to s390.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.
> 
> Julian Wiedmann (1):
>   s390/qeth: fix L3 next-hop in xmit qeth hdr
> 
>  drivers/s390/net/qeth_l3_main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Applied to xenial/master-next-backlog branch.

Thanks,
Kleber