Haotian Zhang 29aaec521e media: videobuf2: Fix device reference leak in vb2_dc_alloc error path ...

commit 94de23a9aa upstream.

In vb2_dc_alloc(), get_device() is called to increment the device
reference count. However, if subsequent DMA allocation fails
(vb2_dc_alloc_coherent or vb2_dc_alloc_non_coherent returns error),
the function returns without calling put_device(), causing a device
reference leak.

Add put_device() call in the error path before kfree() to properly
release the device reference acquired earlier.

Fixes: de27891f67 ("media: videobuf2: handle non-contiguous DMA allocations")
Cc: stable@vger.kernel.org
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-01-08 10:14:46 +01:00

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b2c2

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saa7146

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siano

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v4l2-tpg

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videobuf2

media: videobuf2: Fix device reference leak in vb2_dc_alloc error path

2026-01-08 10:14:46 +01:00

cx2341x.c

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cypress_firmware.c

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cypress_firmware.h

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Kconfig

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Makefile

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ttpci-eeprom.c

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ttpci-eeprom.h

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tveeprom.c

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uvc.c

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