From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: linux-input@vger.kernel.org
Cc: Thomas Fourier <fourier.thomas@gmail.com>,
Seungjin Bae <eeodqql09@gmail.com>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Sashiko bot <sashiko-bot@kernel.org>
Subject: [PATCH 04/11] Input: ims-pcu - fix firmware leak in async update
Date: Fri, 22 May 2026 22:06:22 -0700 [thread overview]
Message-ID: <20260523050634.501509-4-dmitry.torokhov@gmail.com> (raw)
In-Reply-To: <20260523050634.501509-1-dmitry.torokhov@gmail.com>
The firmware object was not being released if validation failed.
Use __free(firmware) to ensure the firmware is always released.
Fixes: 628329d52474 ("Input: add IMS Passenger Control Unit driver")
Cc: stable@vger.kernel.org
Reported-by: Sashiko bot <sashiko-bot@kernel.org>
Assisted-by: Gemini:gemini-3.1-pro
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/misc/ims-pcu.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index a134483e543b..f86f9a5a7564 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -934,9 +934,10 @@ static int ims_pcu_handle_firmware_update(struct ims_pcu *pcu,
return retval;
}
-static void ims_pcu_process_async_firmware(const struct firmware *fw,
+static void ims_pcu_process_async_firmware(const struct firmware *_fw,
void *context)
{
+ const struct firmware *fw __free(firmware) = _fw;
struct ims_pcu *pcu = context;
int error;
@@ -956,8 +957,6 @@ static void ims_pcu_process_async_firmware(const struct firmware *fw,
scoped_guard(mutex, &pcu->cmd_mutex)
ims_pcu_handle_firmware_update(pcu, fw);
- release_firmware(fw);
-
out:
complete(&pcu->async_firmware_done);
}
--
2.54.0.746.g67dd491aae-goog
next prev parent reply other threads:[~2026-05-23 5:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-23 5:06 [PATCH 01/11] Input: ims-pcu - release data interface on disconnect Dmitry Torokhov
2026-05-23 5:06 ` [PATCH 02/11] Input: ims-pcu - fix use-after-free and double-free in disconnect Dmitry Torokhov
2026-05-23 5:45 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 03/11] Input: ims-pcu - fix type confusion in CDC union descriptor parsing Dmitry Torokhov
2026-05-23 5:52 ` sashiko-bot
2026-05-23 5:06 ` Dmitry Torokhov [this message]
2026-05-23 5:37 ` [PATCH 04/11] Input: ims-pcu - fix firmware leak in async update sashiko-bot
2026-05-23 5:06 ` [PATCH 05/11] Input: ims-pcu - fix race condition in reset_device sysfs callback Dmitry Torokhov
2026-05-23 7:12 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 06/11] Input: ims-pcu - validate control endpoint type Dmitry Torokhov
2026-05-23 5:44 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 07/11] Input: ims-pcu - fix logic error in packet reset Dmitry Torokhov
2026-05-23 6:25 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 08/11] Input: ims-pcu - fix out-of-bounds read in ims_pcu_irq() debug logging Dmitry Torokhov
2026-05-23 5:39 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 09/11] Input: ims-pcu - fix DMA mapping violation in line setup Dmitry Torokhov
2026-05-23 5:37 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 10/11] Input: ims-pcu - add response length checks Dmitry Torokhov
2026-05-23 5:54 ` sashiko-bot
2026-05-23 5:06 ` [PATCH 11/11] Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing Dmitry Torokhov
2026-05-23 6:02 ` sashiko-bot
2026-05-23 5:46 ` [PATCH 01/11] Input: ims-pcu - release data interface on disconnect sashiko-bot
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