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| author | Siqi Chen <coc.cyqh@gmail.com> | 2023-06-12 13:32:42 +0200 |
|---|---|---|
| committer | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2023-06-21 18:09:54 +0200 |
| commit | d34b092cab606a47a0d76edde45aab7100bb2435 (patch) | |
| tree | eb0dedfe1b506b2ef559b20f44d5587cd255488f /target/tricore | |
| parent | 0b9f9b63c2d1e26cfe4e593f384898837c7c941f (diff) | |
| download | qemu-d34b092cab606a47a0d76edde45aab7100bb2435.zip qemu-d34b092cab606a47a0d76edde45aab7100bb2435.tar.gz qemu-d34b092cab606a47a0d76edde45aab7100bb2435.tar.bz2 | |
target/tricore: Fix out-of-bounds index in imask instruction
When translating "imask" instruction of Tricore architecture, QEMU did not check whether the register index was out of bounds, resulting in a global-buffer-overflow.
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1698
Reported-by: Siqi Chen <coc.cyqh@gmail.com>
Signed-off-by: Siqi Chen <coc.cyqh@gmail.com>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230612065633.149152-1-coc.cyqh@gmail.com>
Message-Id: <20230612113245.56667-2-kbastian@mail.uni-paderborn.de>
Diffstat (limited to 'target/tricore')
| -rw-r--r-- | target/tricore/translate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/tricore/translate.c b/target/tricore/translate.c index 6712d98..74faad4 100644 --- a/target/tricore/translate.c +++ b/target/tricore/translate.c @@ -5339,6 +5339,7 @@ static void decode_rcrw_insert(DisasContext *ctx) switch (op2) { case OPC2_32_RCRW_IMASK: + CHECK_REG_PAIR(r4); tcg_gen_andi_tl(temp, cpu_gpr_d[r3], 0x1f); tcg_gen_movi_tl(temp2, (1 << width) - 1); tcg_gen_shl_tl(cpu_gpr_d[r4 + 1], temp2, temp); |