* [PATCH] drm/i915: Fix memory leak in query_perf_config_list()
@ 2026-08-23 20:50 Thorsten Blum
2026-08-26 21:41 ` Andi Shyti
0 siblings, 1 reply; 2+ messages in thread
From: Thorsten Blum @ 2026-08-23 20:50 UTC (permalink / raw)
To: Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin,
David Airlie, Simona Vetter, Chris Wilson, Lionel Landwerlin
Cc: Thorsten Blum, intel-gfx, dri-devel, linux-kernel
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);
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] drm/i915: Fix memory leak in query_perf_config_list()
2026-08-23 20:50 [PATCH] drm/i915: Fix memory leak in query_perf_config_list() Thorsten Blum
@ 2026-08-26 21:41 ` Andi Shyti
0 siblings, 0 replies; 2+ messages in thread
From: Andi Shyti @ 2026-08-26 21:41 UTC (permalink / raw)
To: Thorsten Blum
Cc: Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin,
David Airlie, Simona Vetter, Chris Wilson, Lionel Landwerlin,
intel-gfx, dri-devel, linux-kernel
Hi Thorsten,
On Sun, Aug 23, 2026 at 10:50:28PM +0200, Thorsten Blum wrote:
> 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>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Thanks,
Andi
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