selftests/sgx: Fix uninitialized pointer dereferences in encl_get_entry

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[ Upstream commit b84fc2e013 ]

Ensure sym_tab and sym_names are zero-initialized and add an early-out
condition in the unlikely (erroneous) case that the enclave ELF file would
not contain a symbol table.

This addresses -Werror=maybe-uninitialized compiler warnings for gcc -O2.

Fixes: 33c5aac3bf ("selftests/sgx: Test complete changing of page type flow")
Signed-off-by: Jo Van Bulck <jo.vanbulck@cs.kuleuven.be>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/all/20231005153854.25566-3-jo.vanbulck%40cs.kuleuven.be
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jo Van Bulck 2023-10-05 17:38:43 +02:00 • committed by Greg Kroah-Hartman

parent eb41e7e8b4

commit 2cfae256a1

1 changed files with 6 additions and 3 deletions

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tools/testing/selftests/sgx/load.c

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