driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
Summary
| CVE | CVE-2026-80677 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-28 08:16:52 UTC |
| Updated | 2026-08-28 08:16:52 UTC |
| 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(). |
Risk And Classification
EPSS: 0.001760000 probability, percentile 0.072290000 (date 2026-08-28)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 89789e4c141904506163dcb91c7289a074573931 git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 51b3e1de53ee5b7775c7ff90e67fdb2665fce938 git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 358697929351f619143f59c6a8a15a4994748b79 git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 5e79e0180515b31b2e2244dc3d256fd8b5a07021 git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 860885fcd2611bca8c28dac8b2c1c7ff160f763e git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a cc77f0d91e3214e4292208f02a1dc09a31f9aac7 git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a 9b0f4082a09760939588135d60a8e9cc994bfa3e git | Not specified |
| CNA | Linux | Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a e9506871a8ea304cde48ff4a57226df2aadddae3 git | Not specified |
| CNA | Linux | Linux | affected 6d88283a49425eb469aa60ffebe76539e73c933e git | Not specified |
| CNA | Linux | Linux | affected 5.5.13 5.6 semver | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.