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| author | Xixin Liu <liuxixin@kylinos.cn> | 2026-07-28 08:50:00 +0800 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@kernel.org> | 2026-09-01 11:44:59 +0100 |
| commit | 70f4b78d560e592cbf3325b162424737d032fc1d (patch) | |
| tree | 481896d7e29b28af7889f6fd1b5ed2756576291d /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 32471d84a487c7fd74532bc96be56f8028cf4a3f (diff) | |
| download | linux-next-70f4b78d560e592cbf3325b162424737d032fc1d.tar.gz linux-next-70f4b78d560e592cbf3325b162424737d032fc1d.zip | |
clk: scpi: bound-check DVFS index in scpi_dvfs_recalc_rate
dvfs_get_idx() may return an out-of-range index if the SCP firmware is
buggy or returns a stale value. Only negative indexes were rejected, so a
large index walked past info->opps and could treat garbage as a clock rate
(KASAN OOB / wrong frequency to consumers). The missing upper bound dates
back to the original SCPI clock driver.
Treat indexes >= opp count as invalid and return 0, same as idx < 0.
Fixes: cd52c2a4b5c4 ("clk: add support for clocks provided by SCP(System Control Processor)")
Signed-off-by: Xixin Liu <liuxixin@kylinos.cn>
Link: https://patch.msgid.link/04f9ab766e07.v2.1785200642.git.liuxixin@kylinos.cn
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions