staging: media: tegra-video: fix device_node use after free
Summary
| CVE | CVE-2022-50745 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-12-24 13:16:01 UTC |
| Updated | 2026-08-04 10:18:22 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.001650000 probability, percentile 0.061110000 (date 2026-08-06)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 1ebaeb09830f36c1111b72a95420814225bd761c 5451efb2ca30f3c42b9efb8327ce35b62870dbd3 git | Not specified |
| CNA | Linux | Linux | affected 1ebaeb09830f36c1111b72a95420814225bd761c ce50c612458091d926ccb05d7db11d9f93532db2 git | Not specified |
| CNA | Linux | Linux | affected 1ebaeb09830f36c1111b72a95420814225bd761c 6512c9498fcb97e7c760e3ef86b2272f2c0f765f git | Not specified |
| CNA | Linux | Linux | affected 1ebaeb09830f36c1111b72a95420814225bd761c 0fd003d3c708c80350a815eaf37b8e1114b976cf git | Not specified |
| CNA | Linux | Linux | affected 1ebaeb09830f36c1111b72a95420814225bd761c c4d344163c3a7f90712525f931a6c016bbb35e18 git | Not specified |
| CNA | Linux | Linux | affected 5.10 | Not specified |
| CNA | Linux | Linux | unaffected 5.10 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.163 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.87 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.0.18 6.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.4 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/ce50c612458091d926ccb05d7db11d9f93532db2 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c4d344163c3a7f90712525f931a6c016bbb35e18 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5451efb2ca30f3c42b9efb8327ce35b62870dbd3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6512c9498fcb97e7c760e3ef86b2272f2c0f765f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0fd003d3c708c80350a815eaf37b8e1114b976cf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.