CVE-2026-93223 — staging: media: tegra-video: fix of_node_put() on VIP parse errors
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.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.2% (30-day exploitation probability)+1
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Linux | Linux | ≥ e740d199cf0ff1e53ddc2ab067c0a09b55845d68 and < a3783800c9475fa58b8db0885893f96a23f949da≥ e740d199cf0ff1e53ddc2ab067c0a09b55845d68 and < 1295ba29ac590bbb5c4a586afd408018168af10b≥ e740d199cf0ff1e53ddc2ab067c0a09b55845d68 and < 656d047dc0c29c0964d840217a0593f16aa9bc5e≥ e740d199cf0ff1e53ddc2ab067c0a09b55845d68 and < fc9937019cf7e2fe4e29f9341e6400bcd2cde721≥ e740d199cf0ff1e53ddc2ab067c0a09b55845d68 and < 7393372f79db940acff206b43e2905685a0c57adversion 6.5 | Vulnerable | CVE Program (cve.org) e CISA ADP |
EPSS over time FIRST
Oct 15, 2026 → Oct 16, 2026 · 2 reading(s) · max 0.17%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Not enough vector or weakness data: use the affected application’s logs as a starting point.
Timeline
What happened to this CVE, newest first.
- 2026
- Record published
- Affected products added · linux/linux
- Source status changed · → Received
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
5 on the record
- git.kernel.org/stable/c/7393372f79db940acff206b43e2905685a0c57ad
- git.kernel.org/stable/c/a3783800c9475fa58b8db0885893f96a23f949da
- git.kernel.org/stable/c/656d047dc0c29c0964d840217a0593f16aa9bc5e
- git.kernel.org/stable/c/1295ba29ac590bbb5c4a586afd408018168af10b
- git.kernel.org/stable/c/fc9937019cf7e2fe4e29f9341e6400bcd2cde721
Elsewhere on this site
Related CVEs (same products)
- Unknown CVE-2026-98868 dm-pcache: reject a kset that overruns its segment 5h
- Unknown CVE-2026-98867 dm-pcache: bound the logical key offset from persistent memory 5h
- Unknown CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF 5h
- Unknown CVE-2026-98860 HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request 5h
- Unknown CVE-2026-98865 sched_ext: Don't run ops.dequeue() with a DSQ lock held 5h
- Unknown CVE-2026-98864 sched_ext: Wait for SCX_OPSS_DISPATCHING before reenqueueing a task 5h
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No CVSS score published by NVD, the CNA, CISA or GitHub so far.
- No fixed version, patch or mitigation documented.
- No CISA SSVC assessment.
- No CWE classification.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-93223 is "staging: media: tegra-video: fix of_node_put() on VIP parse errors", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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