spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer The curr_xfer field is read by the IRQ handler without holding the lock to check if a transfer is in progress. When clearing curr_xfer in the combined sequence transfer loop, protect it with the spinlock to prevent a race with the interrupt handler. Protect the curr_xfer clearing at the exit path of tegra_qspi_combined_seq_xfer() with the spinlock to prevent a race with the interrupt handler that reads this field. Without this protection, the IRQ handler could read a partially updated curr_xfer value, leading to NULL pointer dereference or use-after-free.

Source published

14 Feb 2026 16:27:26 UTC

Source modified

19 Oct 2026 18:35:38 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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