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Alexander Chesnokov 0294b6dd51 dmaengine: ti: k3-udma-glue: fix NULL dereference in k3_udma_glue_release_rx_chn()

If devm_kcalloc() for rx_chn->flows fails in a channel request function,
the error path calls k3_udma_glue_release_rx_chn(), which dereferences
the NULL rx_chn->flows pointer in k3_udma_glue_release_rx_flow().

Skip the flow release loop in k3_udma_glue_release_rx_chn() when
rx_chn->flows is not allocated.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d702419134 ("dmaengine: ti: k3-udma: Add glue layer for non DMAengine users")
Cc: stable@vger.kernel.org
Reported-by: Pavel Zhigulin <Pavel.Zhigulin@kaspersky.com>
Signed-off-by: Alexander Chesnokov <Alexander.Chesnokov@kaspersky.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260812053426.3521589-1-Alexander.Chesnokov@kaspersky.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

2026-09-03 21:24:48 +05:30

cppi41.c

dmaengine: ti: Remove redundant pm_runtime_mark_last_busy() calls

2025-12-16 22:22:49 +05:30

dma-crossbar.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

edma.c

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21 01:02:28 -08:00

k3-psil-am62.c

dmaengine: ti: k3-psil-am62: Fix SPI PDMA data