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| author | Azeem Shaikh <azeemshaikh38@gmail.com> | 2023-05-16 05:53:22 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-05-17 04:39:44 +0300 |
| commit | 0871237a946e2b16e82048d92d69058fddb9172a (patch) | |
| tree | 6aba795140f6a3c3c8acee71355ba2ce81686988 /drivers/target/iscsi | |
| parent | 973464fded698881d48c6439f9d9912d61819bd1 (diff) | |
| download | linux-0871237a946e2b16e82048d92d69058fddb9172a.tar.xz | |
scsi: target: Replace all non-returning strlcpy() with strscpy()
strlcpy() reads the entire source buffer first. This read may exceed the
destination size limit. This is both inefficient and can lead to linear
read overflows if a source string is not NUL-terminated [1]. In an effort
to remove strlcpy() completely [2], replace strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Link: https://lore.kernel.org/r/20230516025322.2804923-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target/iscsi')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_parameters.c | 4 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_util.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index 557516c642c3..5b90c22ee3dc 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -726,8 +726,8 @@ static int iscsi_add_notunderstood_response( } INIT_LIST_HEAD(&extra_response->er_list); - strlcpy(extra_response->key, key, sizeof(extra_response->key)); - strlcpy(extra_response->value, NOTUNDERSTOOD, + strscpy(extra_response->key, key, sizeof(extra_response->key)); + strscpy(extra_response->value, NOTUNDERSTOOD, sizeof(extra_response->value)); list_add_tail(&extra_response->er_list, diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 26dc8ed3045b..dc1ac5a0f806 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -1321,7 +1321,7 @@ void iscsit_collect_login_stats( if (conn->param_list) intrname = iscsi_find_param_from_key(INITIATORNAME, conn->param_list); - strlcpy(ls->last_intr_fail_name, + strscpy(ls->last_intr_fail_name, (intrname ? intrname->value : "Unknown"), sizeof(ls->last_intr_fail_name)); @@ -1360,7 +1360,7 @@ void iscsit_fill_cxn_timeout_err_stats(struct iscsit_session *sess) return; spin_lock_bh(&tiqn->sess_err_stats.lock); - strlcpy(tiqn->sess_err_stats.last_sess_fail_rem_name, + strscpy(tiqn->sess_err_stats.last_sess_fail_rem_name, sess->sess_ops->InitiatorName, sizeof(tiqn->sess_err_stats.last_sess_fail_rem_name)); tiqn->sess_err_stats.last_sess_failure_type = |