Answer in brief
CVE-2025-21923 records a Unknown severity vulnerability in HID: hid-steam: Fix use-after-free when detaching 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e1147961b2145fa61c3078a4a797d9576cde91ab <026714ec7546de741826324a6a1914c91024d06c || >=3e38cbbfa0a128a9d64773240a9eb3bc7bae3b1a <a899adf7063c6745aaff1ec869f3c7f6329ed0a1 || >=053fa3888d2a957f4db26c05e503f4c6b9570a30 <ea3f18d2f02629653b7bfe42607737ccd1343e54 || >=79504249d7e27cad4a3eeb9afc6386e418728ce0 <e53fc232a65f7488ab75d03a5b95f06aaada7262 | 026714ec7546de741826324a6a1914c91024d06c, a899adf7063c6745aaff1ec869f3c7f6329ed0a1, ea3f18d2f02629653b7bfe42607737ccd1343e54, e53fc232a65f7488ab75d03a5b95f06aaada7262 |
| Linux/Linuxgeneric | >=6.6.79 <6.6.83 || >=6.12.16 <6.12.19 || >=6.13.4 <6.13.7 | 6.6.83, 6.12.19, 6.13.7 |
Published upstream
Apr 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the client_hdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input device. Though the cleanup cancels the deferred work, this was done before the client_hdev itself is cleaned up, so it gets rescheduled. This patch fixes the ordering to make sure the deferred work is properly canceled.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-21923 records a Unknown severity vulnerability in HID: hid-steam: Fix use-after-free when detaching 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e1147961b2145fa61c3078a4a797d9576cde91ab <026714ec7546de741826324a6a1914c91024d06c || >=3e38cbbfa0a128a9d64773240a9eb3bc7bae3b1a <a899adf7063c6745aaff1ec869f3c7f6329ed0a1 || >=053fa3888d2a957f4db26c05e503f4c6b9570a30 <ea3f18d2f02629653b7bfe42607737ccd1343e54 || >=79504249d7e27cad4a3eeb9afc6386e418728ce0 <e53fc232a65f7488ab75d03a5b95f06aaada7262 | 026714ec7546de741826324a6a1914c91024d06c, a899adf7063c6745aaff1ec869f3c7f6329ed0a1, ea3f18d2f02629653b7bfe42607737ccd1343e54, e53fc232a65f7488ab75d03a5b95f06aaada7262 |
| Linux/Linuxgeneric | >=6.6.79 <6.6.83 || >=6.12.16 <6.12.19 || >=6.13.4 <6.13.7 | 6.6.83, 6.12.19, 6.13.7 |
Published upstream
Apr 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the client_hdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input device. Though the cleanup cancels the deferred work, this was done before the client_hdev itself is cleaned up, so it gets rescheduled. This patch fixes the ordering to make sure the deferred work is properly canceled.
Quoted source text, attributed separately from HOL analysis.