Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 89789e4c141904506163dcb91c7289a074573931; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 51b3e1de53ee5b7775c7ff90e67fdb2665fce938; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 358697929351f619143f59c6a8a15a4994748b79; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 5e79e0180515b31b2e2244dc3d256fd8b5a07021; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 860885fcd2611bca8c28dac8b2c1c7ff160f763e; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before cc77f0d91e3214e4292208f02a1dc09a31f9aac7; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before 9b0f4082a09760939588135d60a8e9cc994bfa3e; affected ac338acf514e7b578fa9e3742ec2c292323b4c1a before e9506871a8ea304cde48ff4a57226df2aadddae3; affected 6d88283a49425eb469aa60ffebe76539e73c933e; affected 5.5.13 before 5.6 |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.
No references supplied.