From: Thorsten Blum <thorsten.blum@linux.dev>
To: Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Chris Wilson <chris@chris-wilson.co.uk>,
Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] drm/i915: Fix memory leak in query_perf_config_list()
Date: Sun, 23 Aug 2026 22:50:28 +0200 [thread overview]
Message-ID: <20260823205028.178597-2-thorsten.blum@linux.dev> (raw)
When krealloc() fails, free the original oa_config_ids before returning
to avoid a memory leak.
Fixes: 4f6ccc74a85c ("drm/i915: add support for perf configuration queries")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
drivers/gpu/drm/i915/i915_query.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index 0c55fb6e9727..11157fb14db3 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -403,8 +403,10 @@ static int query_perf_config_list(struct drm_i915_private *i915,
ids = krealloc(oa_config_ids,
n_configs * sizeof(*oa_config_ids),
GFP_KERNEL);
- if (!ids)
+ if (!ids) {
+ kfree(oa_config_ids);
return -ENOMEM;
+ }
alloc = fetch_and_zero(&n_configs);
reply other threads:[~2026-08-23 20:50 UTC|newest]
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