Description
In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself. When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes incomplete transfers, and then restarts the ring. If another timeout triggers a parallel call into the same function, the two instances may interfere with each other - stopping or restarting the ring at unexpected times. Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to itself.
Product status
9ad9a52cce2828d932ae9495181e3d6414f72c07 (git) before b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e
9ad9a52cce2828d932ae9495181e3d6414f72c07 (git) before 4faa1e9c67a2229f6749190aedaf88ce0391efd2
9ad9a52cce2828d932ae9495181e3d6414f72c07 (git) before 1dca8aee80eea76d2aae21265de5dd64f6ba0f09
5.11
Any version before 5.11
6.18.19 (semver)
6.19.9 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e
git.kernel.org/...c/4faa1e9c67a2229f6749190aedaf88ce0391efd2
git.kernel.org/...c/1dca8aee80eea76d2aae21265de5dd64f6ba0f09