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| author | Mukesh Ojha <mukesh.ojha@oss.qualcomm.com> | 2026-09-22 01:26:35 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-10-05 09:10:44 +0200 |
| commit | 324103eb65ba26704c2293d9daaa15c0dc022930 (patch) | |
| tree | fcbdd9060c6acf76a2a6e55fcd998e926e768b71 /tools/perf/scripts/python | |
| parent | 60d4a6edea9ec617725db6dd1e66d96a13bc8d0a (diff) | |
firmware: qcom_scm: handle empty PAS resource table
The PAS resource-table query may successfully return a zero-sized
table. kmemdup() with a zero length returns ZERO_SIZE_PTR,
which is stored in rproc->table_ptr. The remoteproc core then
dereferences this invalid pointer while processing resources.
Treat a zero-sized result as an absent resource table and return
NULL after releasing the TrustZone memory buffer. This allows the
remoteproc core to skip resource-table processing.
Fixes: 8b9d2050cfa0 ("firmware: qcom_scm: Add qcom_scm_pas_get_rsc_table() to get resource table")
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260921195636.1925869-2-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions