Messages in this thread | | | Date | Tue, 12 Jun 2018 15:11:07 +0300 | From | Dan Carpenter <> | Subject | Re: [PATCH v2] staging: pi433: add mutex fixing concurrency issues. |
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On Sat, Jun 09, 2018 at 11:48:42AM -0400, Hugo Lefeuvre wrote: > case PI433_IOC_WR_TX_CFG: > if (copy_from_user(&instance->tx_cfg, argp, > sizeof(struct pi433_tx_cfg))) > return -EFAULT; > break;
Btw, it looks so wrong to me that we copy partial data to &instance->tx_cfg... I'd really prefer copying it to a tmp buffer and then verifying it's corrent then memcpy()ing it to &instance->tx_cfg.
regards, dan carpenter
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