• Abhishek Mainkar's avatar
    ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer · 3a21ffdb
    Abhishek Mainkar authored
    ACPICA commit 90310989a0790032f5a0140741ff09b545af4bc5
    
    According to the ACPI specification 19.6.134, no argument is required to be passed for ASL Timer instruction. For taking care of no argument, AML_NO_OPERAND_RESOLVE flag is added to ASL Timer instruction opcode.
    
    When ASL timer instruction interpreted by ACPI interpreter, getting error. After adding AML_NO_OPERAND_RESOLVE flag to ASL Timer instruction opcode, issue is not observed.
    
    =============================================================
    UBSAN: array-index-out-of-bounds in acpica/dswexec.c:401:12 index -1 is out of range for type 'union acpi_operand_object *[9]'
    CPU: 37 PID: 1678 Comm: cat Not tainted
    6.0.0-dev-th500-6.0.y-1+bcf8c46459e407-generic-64k
    HW name: NVIDIA BIOS v1.1.1-d7acbfc-dirty 12/19/2022 Call trace:
     dump_backtrace+0xe0/0x130
     show_stack+0x20/0x60
     dump_stack_lvl+0x68/0x84
     dump_stack+0x18/0x34
     ubsan_epilogue+0x10/0x50
     __ubsan_handle_out_of_bounds+0x80/0x90
     acpi_ds_exec_end_op+0x1bc/0x6d8
     acpi_ps_parse_loop+0x57c/0x618
     acpi_ps_parse_aml+0x1e0/0x4b4
     acpi_ps_execute_method+0x24c/0x2b8
     acpi_ns_evaluate+0x3a8/0x4bc
     acpi_evaluate_object+0x15c/0x37c
     acpi_evaluate_integer+0x54/0x15c
     show_power+0x8c/0x12c [acpi_power_meter]
    
    Link: https://github.com/acpica/acpica/commit/90310989Signed-off-by: default avatarAbhishek Mainkar <abmainkar@nvidia.com>
    Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    3a21ffdb
psopcode.c 25.2 KB