qemu/target/mips
Philippe Mathieu-Daudé fb51df0c8e target/mips/mxu: Avoid overrun in gen_mxu_q8adde()
Coverity reports a potential overruns (CID 1517770):

  Overrunning array "mxu_gpr" of 15 8-byte elements at
  element index 4294967295 (byte offset 34359738367)
  using index "XRb - 1U" (which evaluates to 4294967295).

Add a gen_extract_mxu_gpr() helper similar to
gen_load_mxu_gpr() to safely extract MXU registers.

Fixes: eb79951ab6 ("target/mips/mxu: Add Q8ADDE ... insns")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230712060806.82323-4-philmd@linaro.org>
2023-07-25 14:40:49 +02:00
..
sysemu target/mips: Rework cp0_timer with clock API 2023-07-10 21:53:03 +02:00
tcg target/mips/mxu: Avoid overrun in gen_mxu_q8adde() 2023-07-25 14:40:49 +02:00
cpu-defs.c.inc target/mips: enable GINVx support for I6400 and I6500 2023-07-10 23:33:38 +02:00
cpu-param.h target/mips: Remove NB_MMU_MODES define 2023-03-13 06:44:37 -07:00
cpu-qom.h target/mips: Convert to 3-phase reset 2022-12-16 15:58:15 +00:00
cpu.c target/mips: Implement Loongson CSR instructions 2023-07-10 23:33:37 +02:00
cpu.h target/mips: Implement Loongson CSR instructions 2023-07-10 23:33:37 +02:00
fpu_helper.h target/mips: Set set_default_nan_mode with set_snan_bit_is_one 2021-05-16 07:13:51 -05:00
fpu.c target/mips: Optimize CPU/FPU regnames[] arrays 2021-05-02 16:49:34 +02:00
gdbstub.c gdbstub: move register helpers into standalone include 2023-03-07 20:44:08 +00:00
helper.h target/mips: Implement Loongson CSR instructions 2023-07-10 23:33:37 +02:00
internal.h target/mips: Implement Loongson CSR instructions 2023-07-10 23:33:37 +02:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
kvm_mips.h hw/mips: Implement the kvm_type() hook in MachineClass 2020-06-27 19:35:39 +02:00
kvm.c mips: Remove support for trap and emulate KVM 2023-01-13 09:32:32 +01:00
meson.build meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
mips-defs.h target/mips: introduce decodetree structure for Cavium Octeon extension 2022-07-12 22:30:09 +02:00
msa.c target/mips: Move msa_reset() to new source file 2021-05-02 16:49:34 +02:00