netdev - [PATCH v2][next] qed: Initialize debug string array

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu,  7 Oct 2021 06:04:13 -0600
From:   Tim Gardner <tim.gardner@...onical.com>
To:     pkushwaha@...vell.com
Cc:     tim.gardner@...onical.com, Ariel Elior <aelior@...vell.com>,
        GR-everest-linux-l2@...vell.com,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Shai Malin <smalin@...vell.com>,
        Omkar Kulkarni <okulkarni@...vell.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2][next] qed: Initialize debug string array

Coverity complains of an uninitialized variable.

CID 120847 (#1 of 1): Uninitialized scalar variable (UNINIT)
3. uninit_use_in_call: Using uninitialized value *sw_platform_str when calling qed_dump_str_param. [show details]
1344        offset += qed_dump_str_param(dump_buf + offset,
1345                                     dump, "sw-platform", sw_platform_str);

Fix this by removing dead code that references sw_platform_str.

Fixes: 6c95dd8f0aa1d ("qed: Update debug related changes")

Cc: Ariel Elior <aelior@...vell.com>
Cc: GR-everest-linux-l2@...vell.com
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Shai Malin <smalin@...vell.com>
Cc: Omkar Kulkarni <okulkarni@...vell.com>
Cc: Prabhakar Kushwaha <pkushwaha@...vell.com>
Cc: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org (open list)
Signed-off-by: Tim Gardner <tim.gardner@...onical.com>
---

v2 - Arrive at the propoer fix per Prabhakar's suggestion.

---
 drivers/net/ethernet/qlogic/qed/qed_debug.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_debug.c b/drivers/net/ethernet/qlogic/qed/qed_debug.c
index 6d693ee380f1..f6198b9a1b02 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_debug.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_debug.c
@@ -1315,7 +1315,6 @@ static u32 qed_dump_common_global_params(struct qed_hwfn *p_hwfn,
 					 u8 num_specific_global_params)
 {
 	struct dbg_tools_data *dev_data = &p_hwfn->dbg_info;
-	char sw_platform_str[MAX_SW_PLTAFORM_STR_SIZE];
 	u32 offset = 0;
 	u8 num_params;
 
@@ -1341,8 +1340,6 @@ static u32 qed_dump_common_global_params(struct qed_hwfn *p_hwfn,
 				     dump,
 				     "platform",
 				     s_hw_type_defs[dev_data->hw_type].name);
-	offset += qed_dump_str_param(dump_buf + offset,
-				     dump, "sw-platform", sw_platform_str);
 	offset += qed_dump_num_param(dump_buf + offset,
 				     dump, "pci-func", p_hwfn->abs_pf_id);
 	offset += qed_dump_num_param(dump_buf + offset,
-- 
2.33.0