From: Shuicheng Lin <shuicheng.lin@intel.com>
To: intel-xe@lists.freedesktop.org
Cc: Shuicheng Lin <shuicheng.lin@intel.com>,
Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Subject: [PATCH] drm/xe/gsc: Fix double-free of managed BO in error path
Date: Mon, 11 May 2026 15:41:34 +0000 [thread overview]
Message-ID: <20260511154134.223696-1-shuicheng.lin@intel.com> (raw)
The error path in xe_gsc_init_post_hwconfig() explicitly frees a BO
allocated with xe_managed_bo_create_pin_map() via
xe_bo_unpin_map_no_vm(). Since the managed BO already has a devm
cleanup action registered, this causes a double-free when devm
unwinds during probe failure.
Remove the explicit free and let devm handle it, consistent with
all other xe_managed_bo_create_pin_map() callers.
Fixes: 2e5d47fe7839 ("drm/xe/uc: Use managed bo for HuC and GSC objects")
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
---
Resend for CI.
---
drivers/gpu/drm/xe/xe_gsc.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_gsc.c b/drivers/gpu/drm/xe/xe_gsc.c
index 0d13e357fb43..aab59dc647fb 100644
--- a/drivers/gpu/drm/xe/xe_gsc.c
+++ b/drivers/gpu/drm/xe/xe_gsc.c
@@ -482,8 +482,7 @@ int xe_gsc_init_post_hwconfig(struct xe_gsc *gsc)
EXEC_QUEUE_FLAG_PERMANENT, 0);
if (IS_ERR(q)) {
xe_gt_err(gt, "Failed to create queue for GSC submission\n");
- err = PTR_ERR(q);
- goto out_bo;
+ return PTR_ERR(q);
}
wq = alloc_ordered_workqueue("gsc-ordered-wq", 0);
@@ -506,8 +505,6 @@ int xe_gsc_init_post_hwconfig(struct xe_gsc *gsc)
out_q:
xe_exec_queue_put(q);
-out_bo:
- xe_bo_unpin_map_no_vm(bo);
return err;
}
--
2.43.0
next reply other threads:[~2026-05-11 15:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-11 15:41 Shuicheng Lin [this message]
2026-05-11 20:21 ` ✓ CI.KUnit: success for drm/xe/gsc: Fix double-free of managed BO in error path Patchwork
2026-05-11 21:09 ` ✓ Xe.CI.BAT: " Patchwork
2026-05-11 23:19 ` ✗ Xe.CI.FULL: failure " Patchwork
2026-05-14 15:45 ` Lin, Shuicheng
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