diff options
Diffstat (limited to 'exec.c')
-rw-r--r-- | exec.c | 10 |
1 files changed, 8 insertions, 2 deletions
@@ -2510,13 +2510,19 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, if (is_write) { if (!(flags & PAGE_WRITE)) return; - p = lock_user(addr, len, 0); + /* XXX: this code should not depend on lock_user */ + if (!(p = lock_user(VERIFY_WRITE, addr, len, 0))) + /* FIXME - should this return an error rather than just fail? */ + return; memcpy(p, buf, len); unlock_user(p, addr, len); } else { if (!(flags & PAGE_READ)) return; - p = lock_user(addr, len, 1); + /* XXX: this code should not depend on lock_user */ + if (!(p = lock_user(VERIFY_READ, addr, len, 1))) + /* FIXME - should this return an error rather than just fail? */ + return; memcpy(buf, p, len); unlock_user(p, addr, 0); } |