linux-kernel - [PATCH][next][V2] drm/xe/xe_late_bind_fw: Fix missing initialization of variable offset

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20250924102208.9216-1-colin.i.king@gmail.com>
Date: Wed, 24 Sep 2025 11:22:08 +0100
From: Colin Ian King <colin.i.king@...il.com>
To: Lucas De Marchi <lucas.demarchi@...el.com>,
	Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Badal Nilawar <badal.nilawar@...el.com>,
	Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
	intel-xe@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next][V2] drm/xe/xe_late_bind_fw: Fix missing initialization of variable offset

The variable offset is not being initialized, and it is only set inside
a for-loop if entry->name is the same as manifest_entry. In the case
where it is not initialized a non-zero check on offset is potentialy checking
a bogus uninitalized value. Fix this by initializing offset to zero.

Fixes: efa29317a553 ("drm/xe/xe_late_bind_fw: Extract and print version info")
Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---

V2: Fix identical issue in parse_lb_layout that I ommitted in the first
patch

---
 drivers/gpu/drm/xe/xe_late_bind_fw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_late_bind_fw.c b/drivers/gpu/drm/xe/xe_late_bind_fw.c
index 38f3feb2aecd..8f5082e689dc 100644
--- a/drivers/gpu/drm/xe/xe_late_bind_fw.c
+++ b/drivers/gpu/drm/xe/xe_late_bind_fw.c
@@ -60,7 +60,7 @@ static int parse_cpd_header(struct xe_late_bind_fw *lb_fw,
 	const struct gsc_manifest_header *manifest;
 	const struct gsc_cpd_entry *entry;
 	size_t min_size = sizeof(*header);
-	u32 offset;
+	u32 offset = 0;
 	int i;
 
 	/* manifest_entry is mandatory */
@@ -116,7 +116,7 @@ static int parse_lb_layout(struct xe_late_bind_fw *lb_fw,
 	const struct csc_fpt_header *header = data;
 	const struct csc_fpt_entry *entry;
 	size_t min_size = sizeof(*header);
-	u32 offset;
+	u32 offset = 0;
 	int i;
 
 	/* fpt_entry is mandatory */
-- 
2.51.0