Answer in brief
CVE-2026-80677 records a High severity (CVSS 7.8) vulnerability in driver core: use READ_ONCE() for dev->driver in dev_has_sync_state(). 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 7.8. 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 | >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <89789e4c141904506163dcb91c7289a074573931 || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <51b3e1de53ee5b7775c7ff90e67fdb2665fce938 || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <358697929351f619143f59c6a8a15a4994748b79 || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <5e79e0180515b31b2e2244dc3d256fd8b5a07021 || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <860885fcd2611bca8c28dac8b2c1c7ff160f763e || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <cc77f0d91e3214e4292208f02a1dc09a31f9aac7 || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <9b0f4082a09760939588135d60a8e9cc994bfa3e || >=ac338acf514e7b578fa9e3742ec2c292323b4c1a <e9506871a8ea304cde48ff4a57226df2aadddae3 || 6d88283a49425eb469aa60ffebe76539e73c933e || >=5.5.13 <5.6 | 89789e4c141904506163dcb91c7289a074573931, 51b3e1de53ee5b7775c7ff90e67fdb2665fce938, 358697929351f619143f59c6a8a15a4994748b79, 5e79e0180515b31b2e2244dc3d256fd8b5a07021, 860885fcd2611bca8c28dac8b2c1c7ff160f763e, cc77f0d91e3214e4292208f02a1dc09a31f9aac7, 9b0f4082a09760939588135d60a8e9cc994bfa3e, e9506871a8ea304cde48ff4a57226df2aadddae3, 5.6 |
| Linux/Linuxgeneric | 5.6 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
In the Linux kernel, the following vulnerability has been resolved: driver core: use READ_ONCE() for dev->driver in dev_has_sync_state() dev_has_sync_state() reads dev->driver twice without holding device_lock() -- once for the NULL check and once to dereference ->sync_state. Some callers only hold device_links_write_lock, which doesn't prevent a concurrent unbind from clearing dev->driver via device_unbind_cleanup(). Fix it by reading dev->driver exactly once with READ_ONCE(), pairing with the WRITE_ONCE() in device_set_driver().
Quoted source text, attributed separately from HOL analysis.