staging: media: tegra-video: fix device_node use after free
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50745
- 2026-10-03 Alias added: GHSA-fcg8-cxrp-mrx7
References
Other 5
- https://git.kernel.org/stable/c/5451efb2ca30f3c42b9efb8327ce35b62870dbd3
- https://git.kernel.org/stable/c/ce50c612458091d926ccb05d7db11d9f93532db2
- https://git.kernel.org/stable/c/6512c9498fcb97e7c760e3ef86b2272f2c0f765f
- https://git.kernel.org/stable/c/0fd003d3c708c80350a815eaf37b8e1114b976cf
- https://git.kernel.org/stable/c/c4d344163c3a7f90712525f931a6c016bbb35e18
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2022-50745 · CVE Program
- CVE-2022-50745 · NVD
- FIRST EPSS
- GHSA-fcg8-cxrp-mrx7 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50745 · Red Hat security data · CC BY 4.0
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