CVE-2026-80677
driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 28, 2026 |
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Affected Versions
Linux / Linux
ac338acf514e7b578fa9e3742ec2c292323b4c1a < 89789e4c141904506163dcb91c7289a074573931 ac338acf514e7b578fa9e3742ec2c292323b4c1a < 51b3e1de53ee5b7775c7ff90e67fdb2665fce938 ac338acf514e7b578fa9e3742ec2c292323b4c1a < 358697929351f619143f59c6a8a15a4994748b79 ac338acf514e7b578fa9e3742ec2c292323b4c1a < 5e79e0180515b31b2e2244dc3d256fd8b5a07021 ac338acf514e7b578fa9e3742ec2c292323b4c1a < 860885fcd2611bca8c28dac8b2c1c7ff160f763e ac338acf514e7b578fa9e3742ec2c292323b4c1a < cc77f0d91e3214e4292208f02a1dc09a31f9aac7 ac338acf514e7b578fa9e3742ec2c292323b4c1a < 9b0f4082a09760939588135d60a8e9cc994bfa3e ac338acf514e7b578fa9e3742ec2c292323b4c1a < e9506871a8ea304cde48ff4a57226df2aadddae3 6d88283a49425eb469aa60ffebe76539e73c933e 5.5.13 < 5.6
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931 git.kernel.org: https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938 git.kernel.org: https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79 git.kernel.org: https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021 git.kernel.org: https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e git.kernel.org: https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7 git.kernel.org: https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e git.kernel.org: https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3