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| author | Hangyu Hua <hbh25y@gmail.com> | 2022-09-09 04:29:43 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2022-09-20 14:05:29 +0200 |
| commit | 4b46a6079d2f8a9aa23c96227dfdb8692ac10421 (patch) | |
| tree | 4013dec4790454a94d0d6a4d3db38e3c0c4571f7 | |
| parent | RDMA/erdma: Make hardware internal opcodes invisible to driver (diff) | |
| download | linux-4b46a6079d2f8a9aa23c96227dfdb8692ac10421.tar.xz linux-4b46a6079d2f8a9aa23c96227dfdb8692ac10421.zip | |
RDMA/srpt: Use flex array destination for memcpy()
In preparation for FORTIFY_SOURCE performing run-time destination buffer
bounds checking for memcpy(), specify the destination output buffer
explicitly, instead of asking memcpy() to write past the end of what looked
like a fixed-size object.
Notice that srp_rsp[] is a pointer to a structure that contains
flexible-array member data[]:
struct srp_rsp {
...
__be32 sense_data_len;
__be32 resp_data_len;
u8 data[];
};
link: https://github.com/KSPP/linux/issues/201
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20220909022943.8896-1-hbh25y@gmail.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/ulp/srpt/ib_srpt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 9450c609bf3b..3c3fae738c3e 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1421,7 +1421,7 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch, srp_rsp->flags |= SRP_RSP_FLAG_SNSVALID; srp_rsp->sense_data_len = cpu_to_be32(sense_data_len); - memcpy(srp_rsp + 1, sense_data, sense_data_len); + memcpy(srp_rsp->data, sense_data, sense_data_len); } return sizeof(*srp_rsp) + sense_data_len; |