Answer in brief
CVE-2023-52864 records a High severity (CVSS 7.0) vulnerability in platform/x86: wmi: Fix opening of char device. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <cf098e937dd125c0317a0d6f261ac2a950a233d6 || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203 || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <d426a2955e45a95b2282764105fcfb110a540453 || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <e0bf076b734a2fab92d8fddc2b8b03462eee7097 || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <44a96796d25809502c75771d40ee693c2e44724e || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <36d85fa7ae0d6be651c1a745191fa7ef055db43e || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <fb7b06b59c6887659c6ed0ecd3110835eecbb6a3 || >=44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 <eba9ac7abab91c8f6d351460239108bef5e7a0b6 | cf098e937dd125c0317a0d6f261ac2a950a233d6, 9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203, d426a2955e45a95b2282764105fcfb110a540453, e0bf076b734a2fab92d8fddc2b8b03462eee7097, 44a96796d25809502c75771d40ee693c2e44724e, 36d85fa7ae0d6be651c1a745191fa7ef055db43e, fb7b06b59c6887659c6ed0ecd3110835eecbb6a3, eba9ac7abab91c8f6d351460239108bef5e7a0b6 |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
May 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: platform/x86: wmi: Fix opening of char device Since commit fa1f68db6ca7 ("drivers: misc: pass miscdevice pointer via file private data"), the miscdevice stores a pointer to itself inside filp->private_data, which means that private_data will not be NULL when wmi_char_open() is called. This might cause memory corruption should wmi_char_open() be unable to find its driver, something which can happen when the associated WMI device is deleted in wmi_free_devices(). Fix the problem by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container_of(). This also avoids wmi_char_open() picking a wrong WMI device bound to a driver with the same name as the original driver.
Quoted source text, attributed separately from HOL analysis.