diff options
| author | Joern Engel <joern@logfs.org> | 2014-09-02 23:50:00 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-09-18 00:20:57 +0200 |
| commit | ce31c1b0dc4038a1dec64585d892adb73d9c45f4 (patch) | |
| tree | 2c808d3d981f99f22fcafefddc716e79fc2faa5d /drivers/target | |
| parent | target: fix pr_out length in iscsi_parse_pr_out_transport_id (diff) | |
| download | linux-ce31c1b0dc4038a1dec64585d892adb73d9c45f4.tar.xz linux-ce31c1b0dc4038a1dec64585d892adb73d9c45f4.zip | |
target: correctly handle match_int errors in FILEIO + PSCSI
This patch correctly handles match_int() errors in FILEIO + PSCSI
backend parameter parsing, which can potentially fail due to a
memory allocation failure or invalid argument.
Found by coverity.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_file.c | 4 | ||||
| -rw-r--r-- | drivers/target/target_core_pscsi.c | 16 |
2 files changed, 15 insertions, 5 deletions
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 7d6cddaec525..ab2c53b63cc3 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -762,7 +762,9 @@ static ssize_t fd_set_configfs_dev_params(struct se_device *dev, fd_dev->fbd_flags |= FBDF_HAS_SIZE; break; case Opt_fd_buffered_io: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; if (arg != 1) { pr_err("bogus fd_buffered_io=%d value\n", arg); ret = -EINVAL; diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 943b1dbe859a..a1690a3fdd7f 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -749,14 +749,18 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_device *dev, ret = -EINVAL; goto out; } - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; pdv->pdv_host_id = arg; pr_debug("PSCSI[%d]: Referencing SCSI Host ID:" " %d\n", phv->phv_host_id, pdv->pdv_host_id); pdv->pdv_flags |= PDF_HAS_VIRT_HOST_ID; break; case Opt_scsi_channel_id: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; pdv->pdv_channel_id = arg; pr_debug("PSCSI[%d]: Referencing SCSI Channel" " ID: %d\n", phv->phv_host_id, @@ -764,7 +768,9 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_device *dev, pdv->pdv_flags |= PDF_HAS_CHANNEL_ID; break; case Opt_scsi_target_id: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; pdv->pdv_target_id = arg; pr_debug("PSCSI[%d]: Referencing SCSI Target" " ID: %d\n", phv->phv_host_id, @@ -772,7 +778,9 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_device *dev, pdv->pdv_flags |= PDF_HAS_TARGET_ID; break; case Opt_scsi_lun_id: - match_int(args, &arg); + ret = match_int(args, &arg); + if (ret) + goto out; pdv->pdv_lun_id = arg; pr_debug("PSCSI[%d]: Referencing SCSI LUN ID:" " %d\n", phv->phv_host_id, pdv->pdv_lun_id); |