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Unrated severityNVD Advisory· Published Dec 24, 2025· Updated Apr 15, 2026

CVE-2022-50745

CVE-2022-50745

Description

In the Linux kernel, the following vulnerability has been resolved:

staging: media: tegra-video: fix device_node use after free

At probe time this code path is followed:

  • tegra_csi_init
  • tegra_csi_channels_alloc
  • for_each_child_of_node(node, channel) -- iterates over channels
  • automatically gets 'channel'
  • tegra_csi_channel_alloc()
  • saves into chan->of_node a pointer to the channel OF node
  • automatically gets and puts 'channel'
  • now the node saved in chan->of_node has refcount 0, can disappear
  • tegra_csi_channels_init
  • iterates over channels
  • tegra_csi_channel_init -- uses chan->of_node

After that, chan->of_node keeps storing the node until the device is removed.

of_node_get() the node and of_node_put() it during teardown to avoid any risk.

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Affected products

76

Patches

Vulnerability mechanics

References

5

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