s390/qeth: check size of required HW header cache object

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When qeth_add_hw_header() falls back to the header cache, ensure that
the requested length doesn't exceed the object size.

For current usage this is a no-brainer, but TSO transmission will
introduce protocol headers of varying length.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Julian Wiedmann 2018-09-17 17:36:01 +02:00 • committed by David S. Miller

parent 2d3986d1ce

commit 5549426466

1 changed files with 9 additions and 2 deletions

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11

drivers/s390/net/qeth_core_main.c

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