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Steffen Klassert d90c902449 af_key: Fix slab-out-of-bounds in pfkey_compile_policy. The sadb_x_sec_len is stored in the unit 'byte divided by eight'. So we have to multiply this value by eight before we can do size checks. Otherwise we may get a slab-out-of-bounds when we memcpy the user sec_ctx. Fixes: `df71837d50` ("[LSM-IPSec]: Security association restriction.") Reported-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>	2017-05-08 08:03:01 +02:00
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Makefile	…
af_key.c	af_key: Fix slab-out-of-bounds in pfkey_compile_policy.	2017-05-08 08:03:01 +02:00

Steffen Klassert d90c902449 af_key: Fix slab-out-of-bounds in pfkey_compile_policy.

The sadb_x_sec_len is stored in the unit 'byte divided by eight'.
So we have to multiply this value by eight before we can do
size checks. Otherwise we may get a slab-out-of-bounds when
we memcpy the user sec_ctx.

Fixes: df71837d50 ("[LSM-IPSec]: Security association restriction.")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

2017-05-08 08:03:01 +02:00

Makefile

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af_key.c af_key: Fix slab-out-of-bounds in pfkey_compile_policy. 2017-05-08 08:03:01 +02:00