CVE-2022-50745
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.
Affected versions
Linux kernel versions
5.10
and later are affected. Fixed in
5.10.163,
5.15.87,
6.0.18,
6.1.4,
6.2
and their respective stable series.
References
The following references provide additional information about CVE-2022-50745 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0fd003d3c708c80350a815eaf37b8e1114b976cf
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PatchKernel patch commithttps://git.kernel.org/stable/c/5451efb2ca30f3c42b9efb8327ce35b62870dbd3
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PatchKernel patch commithttps://git.kernel.org/stable/c/6512c9498fcb97e7c760e3ef86b2272f2c0f765f
Frequently asked questions
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What is CVE-2022-50745?
CVE-2022-50745 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.10 onward and has been patched in 5.10.163, 5.15.87, 6.0.18 and others. CVE-2022-50745 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2022-50745?
Yes — CVE-2022-50745 has been patched. Fixed versions include 5.10.163, 5.15.87, 6.0.18 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50745 actively exploited?
No — CVE-2022-50745 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.