On 20.06.2021 14:38:42, Norbert Slusarek wrote:
> If optval != NULL and optlen = 0 are specified for SO_J1939_FILTER in
> j1939_sk_setsockopt(), memdup_sockptr() will return ZERO_PTR for 0 size
> allocation. The new filter will be mistakenly assigned ZERO_PTR.
> This patch checks for optlen != 0 and filter will be assigned NULL
> in case of optlen = 0.
>
> Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
> Signed-off-by: Norbert Slusarek <nslusarek@xxxxxxx>
The problem was in the initial commit, too. Changed Fixes tags
accordingly to:
| Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
applied to linux-can/testing
regards,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
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