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CVE-2026-93223

Unknown

Last modified

CVE-2026-93223 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: staging: media: tegra-video: fix of_node_put() on VIP parse errors tegra_vip_channel_of_parse() initializes np from dev->of_node without taking a reference, but its error paths drop one through the err_node_put label. This underflows the refcount of the VIP device's OF node when endpoint parsing fails on a malformed device tree. The only reference the function takes on np is the success-path of_node_get() stored in vip->chan.of_node, and that one is already released by the tegra_vip_init() error path and by tegra_vip_exit(). Return errors directly instead of jumping to the bogus cleanup label..

Description

In the Linux kernel, the following vulnerability has been resolved: staging: media: tegra-video: fix of_node_put() on VIP parse errors tegra_vip_channel_of_parse() initializes np from dev->of_node without taking a reference, but its error paths drop one through the err_node_put label. This underflows the refcount of the VIP device's OF node when endpoint parsing fails on a malformed device tree. The only reference the function takes on np is the success-path of_node_get() stored in vip->chan.of_node, and that one is already released by the tegra_vip_init() error path and by tegra_vip_exit(). Return errors directly instead of jumping to the bogus cleanup label.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e740d199cf0ff1e53ddc2ab067c0a09b55845d68, < a3783800c9475fa58b8db0885893f96a23f949da; >= e740d199cf0ff1e53ddc2ab067c0a09b55845d68, < 1295ba29ac590bbb5c4a586afd408018168af10b; >= e740d199cf0ff1e53ddc2ab067c0a09b55845d68, < 656d047dc0c29c0964d840217a0593f16aa9bc5e; >= e740d199cf0ff1e53ddc2ab067c0a09b55845d68, < fc9937019cf7e2fe4e29f9341e6400bcd2cde721; >= e740d199cf0ff1e53ddc2ab067c0a09b55845d68, < 7393372f79db940acff206b43e2905685a0c57ad
LinuxLinux6.5

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93223?
In the Linux kernel, the following vulnerability has been resolved: staging: media: tegra-video: fix of_node_put() on VIP parse errors tegra_vip_channel_of_parse() initializes np from dev->of_node without taking a reference, but its error paths drop one through the err_node_put label. This underflows the refcount of the VIP device's OF node when endpoint parsing fails on a malformed device tree. The only reference the function takes on np is the success-path of_node_get() stored in vip->chan.of_node, and that one is already released by the tegra_vip_init() error path and by tegra_vip_exit(). Return errors directly instead of jumping to the bogus cleanup label.
How severe is CVE-2026-93223?
Severity scoring for CVE-2026-93223 is pending analysis.
How do I fix CVE-2026-93223?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST