FKIE_CVE-2022-50745
Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-06-17 05:24
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/staging/media/tegra-video/csi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5451efb2ca30f3c42b9efb8327ce35b62870dbd3",
"status": "affected",
"version": "1ebaeb09830f36c1111b72a95420814225bd761c",
"versionType": "git"
},
{
"lessThan": "ce50c612458091d926ccb05d7db11d9f93532db2",
"status": "affected",
"version": "1ebaeb09830f36c1111b72a95420814225bd761c",
"versionType": "git"
},
{
"lessThan": "6512c9498fcb97e7c760e3ef86b2272f2c0f765f",
"status": "affected",
"version": "1ebaeb09830f36c1111b72a95420814225bd761c",
"versionType": "git"
},
{
"lessThan": "0fd003d3c708c80350a815eaf37b8e1114b976cf",
"status": "affected",
"version": "1ebaeb09830f36c1111b72a95420814225bd761c",
"versionType": "git"
},
{
"lessThan": "c4d344163c3a7f90712525f931a6c016bbb35e18",
"status": "affected",
"version": "1ebaeb09830f36c1111b72a95420814225bd761c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/staging/media/tegra-video/csi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.163",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.87",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: media: tegra-video: fix device_node use after free\n\nAt probe time this code path is followed:\n\n * tegra_csi_init\n * tegra_csi_channels_alloc\n * for_each_child_of_node(node, channel) -- iterates over channels\n * automatically gets \u0027channel\u0027\n * tegra_csi_channel_alloc()\n * saves into chan-\u003eof_node a pointer to the channel OF node\n * automatically gets and puts \u0027channel\u0027\n * now the node saved in chan-\u003eof_node has refcount 0, can disappear\n * tegra_csi_channels_init\n * iterates over channels\n * tegra_csi_channel_init -- uses chan-\u003eof_node\n\nAfter that, chan-\u003eof_node keeps storing the node until the device is\nremoved.\n\nof_node_get() the node and of_node_put() it during teardown to avoid any\nrisk."
}
],
"id": "CVE-2022-50745",
"lastModified": "2026-06-17T05:24:06.370",
"metrics": {},
"published": "2025-12-24T13:16:01.210",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0fd003d3c708c80350a815eaf37b8e1114b976cf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5451efb2ca30f3c42b9efb8327ce35b62870dbd3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6512c9498fcb97e7c760e3ef86b2272f2c0f765f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c4d344163c3a7f90712525f931a6c016bbb35e18"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ce50c612458091d926ccb05d7db11d9f93532db2"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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