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-rw-r--r--linux-user/syscall.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3da8e5137c..14a6b32ab1 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -7467,12 +7467,20 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
 #endif
 #ifdef TARGET_NR_pread64
     case TARGET_NR_pread64:
+        if (regpairs_aligned(cpu_env)) {
+            arg4 = arg5;
+            arg5 = arg6;
+        }
         if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
             goto efault;
         ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
         unlock_user(p, arg2, ret);
         break;
     case TARGET_NR_pwrite64:
+        if (regpairs_aligned(cpu_env)) {
+            arg4 = arg5;
+            arg5 = arg6;
+        }
         if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
             goto efault;
         ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));