Vulnerability details
CVE-2026-80677
Linux Linux
driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
CVSS 3.1
7.8High
Official description
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().
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6d88283a49425eb469aa60ffebe76539e73c933e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.5.13 ≤ v < 5.6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 5e79e0180515b31b2e2244dc3d256fd8b5a07021 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 860885fcd2611bca8c28dac8b2c1c7ff160f763e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 89789e4c141904506163dcb91c7289a074573931 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 9b0f4082a09760939588135d60a8e9cc994bfa3e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < e9506871a8ea304cde48ff4a57226df2aadddae3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < cc77f0d91e3214e4292208f02a1dc09a31f9aac7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 51b3e1de53ee5b7775c7ff90e67fdb2665fce938 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ac338acf514e7b578fa9e3742ec2c292323b4c1a ≤ v < 358697929351f619143f59c6a8a15a4994748b79 | CVEProject cvelistV5 (CNA) |
References and advisories
8- https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931
- https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938
- https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79
- https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021
- https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e
- https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7
- https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e
- https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3
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Details
- Published
- 2026-08-28
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
7.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —