CVE-2026-80677driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 89789e4c141904506163dcb91c7289a074573931; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 51b3e1de53ee5b7775c7ff90e67fdb2665fce938; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 358697929351f619143f59c6a8a15a4994748b79; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 5e79e0180515b31b2e2244dc3d256fd8b5a07021; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 860885fcd2611bca8c28dac8b2c1c7ff160f763e; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before cc77f0d91e3214e4292208f02a1dc09a31f9aac7; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before 9b0f4082a09760939588135d60a8e9cc994bfa3e; from ac338acf514e7b578fa9e3742ec2c292323b4c1a before e9506871a8ea304cde48ff4a57226df2aadddae3; and 2 more ranges | CNA record |
References
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.