Bug 2540219 (CVE-2026-93223) - CVE-2026-93223 kernel: staging: media: tegra-video: fix of_node_put() on VIP parse errors
Summary: CVE-2026-93223 kernel: staging: media: tegra-video: fix of_node_put() on VIP ...
Keywords:
Status: NEW
Alias: CVE-2026-93223
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 15:42 UTC by OSIDB Bzimport
Modified: 2026-10-27 19:28 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-09-24 15:42:37 UTC
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.


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