CVE-2022-50745: staging: media: tegra-video: fix device_node use after free
Vulnerability summary
CVE-2022-50745 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.7% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 24-12-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.19% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu104 products
- linux< 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1033.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.4-1
Linux1 product
- linux≥ 1ebaeb09830f36c1111b72a95420814225bd761c, < 5451efb2ca30f3c42b9efb8327ce35b62870dbd3 | ≥ 1ebaeb09830f36c1111b72a95420814225bd761c, < ce50c612458091d926ccb05d7db11d9f93532db2 | ≥ 1ebaeb09830f36c1111b72a95420814225bd761c, < 6512c9498fcb97e7c760e3ef86b2272f2c0f765f | ≥ 1ebaeb09830f36c1111b72a95420814225bd761c, < 0fd003d3c708c80350a815eaf37b8e1114b976cf | ≥ 1ebaeb09830f36c1111b72a95420814225bd761c, < c4d344163c3a7f90712525f931a6c016bbb35e18 | 5.10
3 vendors · 106 products