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nvmet-passthru: Reject commands with non-sgl flags set 

Any command with a non-SGL flag set (like fuse flags) should be
rejected.

Fixes: c1fef73f79 ("nvmet: add passthru code to process commands")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
zero-sugar-mainline-defconfig
Logan Gunthorpe 2020-07-29 13:10:09 -06:00 committed by Jens Axboe
parent 382fee1a8b
commit 0ceeab96ba
1 changed files with 8 additions and 0 deletions
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8
drivers/nvme/target/passthru.c
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@ -326,6 +326,10 @@ static u16 nvmet_setup_passthru_command(struct nvmet_req *req)
u16 nvmet_parse_passthru_io_cmd(struct nvmet_req *req)
{
/* Reject any commands with non-sgl flags set (ie. fused commands) */
if (req->cmd->common.flags & ~NVME_CMD_SGL_ALL)
return NVME_SC_INVALID_FIELD;
switch (req->cmd->common.opcode) {
case nvme_cmd_resv_register:
case nvme_cmd_resv_report:
@ -396,6 +400,10 @@ static u16 nvmet_passthru_get_set_features(struct nvmet_req *req)
u16 nvmet_parse_passthru_admin_cmd(struct nvmet_req *req)
{
/* Reject any commands with non-sgl flags set (ie. fused commands) */
if (req->cmd->common.flags & ~NVME_CMD_SGL_ALL)
return NVME_SC_INVALID_FIELD;
/*
* Passthru all vendor specific commands
*/