diff options
| author | Breno Leitao <leitao@debian.org> | 2026-01-26 09:50:29 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-01-30 13:53:15 +0000 |
| commit | bf4528ab28e2bf112c3a2cdef44fd13f007781cd (patch) | |
| tree | bf4daa22dcc9fb82e954804451f14efec63d3ae3 /tools/perf/scripts/python/bin/task-analyzer-record | |
| parent | f5a4d7f5e32ba163cff893493ec1cbb0fd2fb0d5 (diff) | |
| download | kernel-bf4528ab28e2bf112c3a2cdef44fd13f007781cd.tar.gz | |
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.
Fixes: b4e002d8a7ce ("spi: tegra210-quad: Fix timeout handling")
Signed-off-by: Breno Leitao <leitao@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260126-tegra_xfer-v2-4-6d2115e4f387@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/task-analyzer-record')
0 files changed, 0 insertions, 0 deletions