diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index dcb9df90e6..7087a56dd1 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9615,11 +9615,12 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, { /* args: timer_t timerid, int flags, const struct itimerspec *new_value, * struct itimerspec * old_value */ - arg1 &= 0xffff; - if (arg3 == 0 || arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { + target_ulong timerid = arg1; + + if (arg3 == 0 || timerid >= ARRAY_SIZE(g_posix_timers)) { ret = -TARGET_EINVAL; } else { - timer_t htimer = g_posix_timers[arg1]; + timer_t htimer = g_posix_timers[timerid]; struct itimerspec hspec_new = {{0},}, hspec_old = {{0},}; target_to_host_itimerspec(&hspec_new, arg3); @@ -9635,13 +9636,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_timer_gettime: { /* args: timer_t timerid, struct itimerspec *curr_value */ - arg1 &= 0xffff; + target_ulong timerid = arg1; + if (!arg2) { return -TARGET_EFAULT; - } else if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { + } else if (timerid >= ARRAY_SIZE(g_posix_timers)) { ret = -TARGET_EINVAL; } else { - timer_t htimer = g_posix_timers[arg1]; + timer_t htimer = g_posix_timers[timerid]; struct itimerspec hspec; ret = get_errno(timer_gettime(htimer, &hspec)); @@ -9657,11 +9659,12 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_timer_getoverrun: { /* args: timer_t timerid */ - arg1 &= 0xffff; - if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { + target_ulong timerid = arg1; + + if (timerid >= ARRAY_SIZE(g_posix_timers)) { ret = -TARGET_EINVAL; } else { - timer_t htimer = g_posix_timers[arg1]; + timer_t htimer = g_posix_timers[timerid]; ret = get_errno(timer_getoverrun(htimer)); } break; @@ -9672,13 +9675,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_timer_delete: { /* args: timer_t timerid */ - arg1 &= 0xffff; - if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { + target_ulong timerid = arg1; + + if (timerid >= ARRAY_SIZE(g_posix_timers)) { ret = -TARGET_EINVAL; } else { - timer_t htimer = g_posix_timers[arg1]; + timer_t htimer = g_posix_timers[timerid]; ret = get_errno(timer_delete(htimer)); - g_posix_timers[arg1] = 0; + g_posix_timers[timerid] = 0; } break; } |