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| author | Linus Walleij <linusw@kernel.org> | 2026-09-27 11:03:36 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-10-05 17:39:02 +0200 |
| commit | 884e01160bc727509b4fdf04e763a86b936df464 (patch) | |
| tree | f5eb1e9d60967af131523254a89278693863c4d4 /tools/perf/python/stackcollapse.py | |
| parent | b36f8fce7314fed53563c60e683ff86deb8a51ae (diff) | |
| download | linux-next-884e01160bc727509b4fdf04e763a86b936df464.tar.gz linux-next-884e01160bc727509b4fdf04e763a86b936df464.zip | |
dmaengine: ste_dma40: Validate fixed physical channel indexes
Fixed physical memcpy allocation uses dma_cfg.phy_channel directly as an
index into phy_res when use_fixed_channel is set. d40_validate_conf()
validates dev_type but not the fixed physical channel, allowing an invalid
configuration to access memory outside the array.
Validate the fixed physical channel centrally before accepting the channel
configuration.
Fixes: f000df8c5a0e ("dmaengine: ste_dma40: support fixed physical channel allocation")
Reported-by: sashiko-bot@kernel.org
Closes: https://lore.kernel.org/dmaengine/20260819225008.5F9651F000E9@smtp.kernel.org/
Assisted-by: LLM
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260927-dma40-fixes-v7-23-89f595e8851d@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/perf/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions