f59b701b46
KASAN reports a global-out-of-bounds access when running these nfit
tests: clear.sh, pmem-errors.sh, pfn-meta-errors.sh, btt-errors.sh,
daxdev-errors.sh, and inject-error.sh.
[] BUG: KASAN: global-out-of-bounds in nfit_test_ctl+0x769f/0x7840 [nfit_test]
[] Read of size 4 at addr ffffffffc03ea01c by task ndctl/1215
[] The buggy address belongs to the variable:
[] handle+0x1c/0x1df4 [nfit_test]
nfit_test_search_spa() uses handle[nvdimm->id] to retrieve a device
handle and triggers a KASAN error when it reads past the end of the
handle array. It should not be indexing the handle array at all.
The correct device handle is stored in per-DIMM test data. Each DIMM
has a struct nfit_mem that embeds a struct acpi_nfit_memdev that
describes the NFIT device handle. Use that device handle here.
Fixes:
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|---|---|---|
| .. | ||
| Kbuild | ||
| iomap.c | ||
| ndtest.c | ||
| ndtest.h | ||
| nfit.c | ||
| nfit_test.h | ||