RHSA-2025:13633
Vulnerability from csaf_redhat - Published: 2025-08-11 14:20 - Updated: 2026-11-11 18:46A flaw was found in the Linux kernel's VMware Virtual Machine Communication Interface (VMCI) driver. Memory structures allocated for queue pair event notifications contain uninitialized padding bytes that are copied directly to user space. A local attacker with access to the VMCI device can exploit this flaw to leak sensitive information from kernel memory.
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| Unresolved product id: NFV-9.2.0.Z.E4S:kernel-rt-0:5.14.0-284.130.1.rt14.415.el9_2.src | — |
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A flaw was found in the Linux kernel's Security-Enhanced Linux (SELinux) subsystem. A missing boundary check in the policy database handling function, put_entry(), allows out-of-bounds memory access. A local user with administrative privileges could exploit this flaw during policy operations to cause a kernel crash, resulting in a Denial of Service (DoS).
A dangling pointer vulnerability was found in the Linux kernel. When an async control is written, a copy of a pointer is made in the file handle that started the operation. If the user closes that file descriptor, its structure will be freed and there will be one dangling pointer per pending async control that the driver will try to use, leading to denial of service of the system.
A use-after-free vulnerability was found in the Linux kernel's padata subsystem, in the `padata_reorder()` function. Caused by improper synchronization controls, this vulnerability can occur when a reference-counted data structure (`pd`) is decremented in one thread, freeing it, while another thread still holds a pointer to it and attempts to access it via `padata_find_next()`. This vulnerability can lead to system instability, denial of service, and potential privilege escalation.
A flaw was found in the Linux kernel's Intel Integrated Sensor Hub (ISH) driver. Improper memory management during driver removal causes device data to be freed prematurely while hardware cleanup operations are still in progress, leading to a use-after-free condition. A local user with administrative privileges to unload kernel drivers can trigger this flaw, causing a system crash and resulting in a Denial of Service (DoS).
A flaw was found in the Linux kernel's AMD processor microcode loader. On systems equipped with memory-only or CPU-less Non-Uniform Memory Access (NUMA) nodes, the kernel fails to verify that a node contains active processors before querying per-processor data during microcode loading. A local privileged user could trigger this vulnerability when applying a microcode update, leading to an out-of-bounds array access that may cause memory corruption or a Denial of Service (DoS) through a system crash.
A flaw was found in the Linux kernel's Realtek RTSX USB MemoryStick driver. A race condition occurs during device removal because the driver releases resources before canceling a background card-polling task, resulting in a use-after-free vulnerability. A local user with administrative privileges or an attacker with physical access to disconnect the device can exploit this flaw to cause a Denial of Service (DoS) by crashing the system or potentially execute arbitrary code.
A flaw was found in the Linux kernel's Hierarchical Fair Service Curve (HFSC) network packet scheduler. A timing discrepancy during traffic class updates with certain child queuing mechanisms can cause an empty queue to be improperly tracked in the scheduler's internal tree. When the affected class is subsequently destroyed, it results in a use-after-free memory flaw. A local attacker could exploit this vulnerability to cause a Denial of Service (DoS) through a system crash or potentially escalate privileges.
A flaw was found in the Linux kernel's CH9200 USB Ethernet driver. An attacker with physical access or the ability to attach a malicious USB device can exploit this issue by triggering a communication failure during network negotiation. Because the driver fails to verify whether a read operation succeeded, it proceeds to read uninitialized buffer memory. This flaw can lead to information disclosure of sensitive kernel memory or cause unpredictable system behavior resulting in a denial of service (DoS).
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"text": "A use after free problem was seen in uvc_ctrl_status_event in USB Video Class (UVC) driver. This flaw could allow a local normal user (which no special privilege) to crash the system at time of device closure. This vulnerability could even lead to a kernel information leak problem.",
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{
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"text": "A use-after-free vulnerability was found in the Linux kernel\u0027s padata subsystem, in the `padata_reorder()` function. Caused by improper synchronization controls, this vulnerability can occur when a reference-counted data structure (`pd`) is decremented in one thread, freeing it, while another thread still holds a pointer to it and attempts to access it via `padata_find_next()`. This vulnerability can lead to system instability, denial of service, and potential privilege escalation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: padata: fix UAF in padata_reorder",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "external",
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{
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},
{
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{
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"text": "kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()",
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{
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{
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: net: ch9200: fix uninitialised access during mii_nway_restart"
}
]
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.