Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind The ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via schedule_delayed_work(); that work is cleared by a devm callback. Register the devm callback before devm_request_irq() so the devres LIFO teardown frees the IRQ first, ensuring the handler can no longer queue work by the time the workqueue is cleared. Otherwise the handler could re-arm the work and run it after the xadc structure has been freed. This issue was found by an in-house static analysis tool.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2a9685d1a3b7644ca08d8355fc238b43faef7c3e before 012451d72c12293918617ff98cc737bedad21910; affected 2a9685d1a3b7644ca08d8355fc238b43faef7c3e before a29d385ad7b340c952a3935af2b33488db1eb3a6; affected 2a9685d1a3b7644ca08d8355fc238b43faef7c3e before a5fe2d1b55faba6d00fd87ad491b6cb603046304; affected 2a9685d1a3b7644ca08d8355fc238b43faef7c3e before 49ea8a359e362bfbb32a647c8eb7962fbb37234e; affected 2a9685d1a3b7644ca08d8355fc238b43faef7c3e before 0f3f427076240e75ff265e61645627a71ca4918c; affected e96eb8853f334f96312968e4f01c5a452db54c00; affected 5.10.200 before 5.11 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/012451d72c12293918617ff98cc737bedad21910
- https://git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6
- https://git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304
- https://git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e
- https://git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c