Description
In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Fix timeout handling When the CPU that the QSPI interrupt handler runs on (typically CPU 0) is excessively busy, it can lead to rare cases of the IRQ thread not running before the transfer timeout is reached. While handling the timeouts, any pending transfers are cleaned up and the message that they correspond to is marked as failed, which leaves the curr_xfer field pointing at stale memory. To avoid this, clear curr_xfer to NULL upon timeout and check for this condition when the IRQ thread is finally run. While at it, also make sure to clear interrupts on failure so that new interrupts can be run. A better, more involved, fix would move the interrupt clearing into a hard IRQ handler. Ideally we would also want to signal that the IRQ thread no longer needs to be run after the timeout is hit to avoid the extra check for a valid transfer.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
921fc1838fb036f690b8ba52e6a6d3644b475cbb to < 88db8bb7ed1bb474618acdf05ebd4f0758d244e2affected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < 83309dd551cfd60a5a1a98d9cab19f435b44d46daffected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < c934e40246da2c5726d14e94719c514e30840df8affected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < 551060efb156c50fe33799038ba8145418cfdeefaffected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < bb0c58be84f907285af45657c1d4847b960a12bfaffected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < 01bbf25c767219b14c3235bfa85906b8d2cb8fbcaffected921fc1838fb036f690b8ba52e6a6d3644b475cbb to < b4e002d8a7cee3b1d70efad0e222567f92a73000affected
Linux Linux
Default version status: affected
5.12affected0 to < 5.12unaffected5.15.198 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.120 to ≤ 6.6.*unaffected6.12.63 to ≤ 6.12.*unaffected6.17.13 to ≤ 6.17.*unaffected6.18.2 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/88db8bb7ed1bb474618acdf05ebd4f0758d244e2 ↗
- https://git.kernel.org/stable/c/83309dd551cfd60a5a1a98d9cab19f435b44d46d ↗
- https://git.kernel.org/stable/c/c934e40246da2c5726d14e94719c514e30840df8 ↗
- https://git.kernel.org/stable/c/551060efb156c50fe33799038ba8145418cfdeef ↗
- https://git.kernel.org/stable/c/bb0c58be84f907285af45657c1d4847b960a12bf ↗
- https://git.kernel.org/stable/c/01bbf25c767219b14c3235bfa85906b8d2cb8fbc ↗
- https://git.kernel.org/stable/c/b4e002d8a7cee3b1d70efad0e222567f92a73000 ↗