abd26515d4
[ Upstream commit 8f9abaa6d7de0a70fc68acaedce290c1f96e2e59 ] Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr(). Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption. Signed-off-by: Naveen N Rao <naveen@kernel.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Build-tested-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231123071705.397625-1-naveen@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| .. | ||
| Makefile | ||
| alloc.c | ||
| checksum_32.S | ||
| checksum_64.S | ||
| checksum_wrappers.c | ||
| code-patching.c | ||
| copy_32.S | ||
| copy_mc_64.S | ||
| copypage_64.S | ||
| copypage_power7.S | ||
| copyuser_64.S | ||
| copyuser_power7.S | ||
| crtsavres.S | ||
| div64.S | ||
| error-inject.c | ||
| feature-fixups-test.S | ||
| feature-fixups.c | ||
| hweight_64.S | ||
| ldstfp.S | ||
| locks.c | ||
| mem_64.S | ||
| memcmp_32.S | ||
| memcmp_64.S | ||
| memcpy_64.S | ||
| memcpy_power7.S | ||
| pmem.c | ||
| quad.S | ||
| restart_table.c | ||
| rheap.c | ||
| sstep.c | ||
| string.S | ||
| string_32.S | ||
| string_64.S | ||
| strlen_32.S | ||
| test-code-patching.c | ||
| test_emulate_step.c | ||
| test_emulate_step_exec_instr.S | ||
| vmx-helper.c | ||
| xor_vmx.c | ||
| xor_vmx.h | ||
| xor_vmx_glue.c | ||