[PATCH v2 0/2] dmaengine: fix kref underflow and UAF in dma_chan_put()

From: Shivank Garg

Date: Tue May 26 2026 - 07:23:04 EST


Fix bugs related to dma_chan_put().

Signed-off-by: Shivank Garg <shivankg@xxxxxxx>
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Changes in v2:
- Add patch 2 fixing the dma_chan_put()/dma_release_channel() use-after-free (sashiko)
- Link to v1: https://lore.kernel.org/r/20260518-dmaengine-kref-fix-v1-1-4d6125048fb7@xxxxxxx

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Shivank Garg (2):
dmaengine: Fix device kref underflow in dma_chan_put()
dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel()

drivers/dma/dmaengine.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
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base-commit: e8c2f9fdadee7cbc75134dc463c1e0d856d6e5c7
change-id: 20260518-dmaengine-kref-fix-7b21acb09455

Best regards,
--
Shivank Garg <shivankg@xxxxxxx>