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Kernel: Use copy_n_from_user in sys$setkeymap

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Brian Gianforcaro 2021-02-21 08:02:04 -08:00 • committed by Andreas Kling
parent 2139e0a201
commit 1c0e2947d7
1 changed files with 5 additions and 5 deletions
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10
Kernel/Syscalls/keymap.cpp
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@ -44,15 +44,15 @@ int Process::sys$setkeymap(Userspace<const Syscall::SC_setkeymap_params*> user_p
Keyboard::CharacterMapData character_map_data;
if (!copy_from_user(character_map_data.map, params.map, CHAR_MAP_SIZE * sizeof(u32)))
if (!copy_n_from_user(character_map_data.map, params.map, CHAR_MAP_SIZE))
return -EFAULT;
if (!copy_from_user(character_map_data.shift_map, params.shift_map, CHAR_MAP_SIZE * sizeof(u32)))
if (!copy_n_from_user(character_map_data.shift_map, params.shift_map, CHAR_MAP_SIZE))
return -EFAULT;
if (!copy_from_user(character_map_data.alt_map, params.alt_map, CHAR_MAP_SIZE * sizeof(u32)))
if (!copy_n_from_user(character_map_data.alt_map, params.alt_map, CHAR_MAP_SIZE))
return -EFAULT;
if (!copy_from_user(character_map_data.altgr_map, params.altgr_map, CHAR_MAP_SIZE * sizeof(u32)))
if (!copy_n_from_user(character_map_data.altgr_map, params.altgr_map, CHAR_MAP_SIZE))
return -EFAULT;
if (!copy_from_user(character_map_data.shift_altgr_map, params.shift_altgr_map, CHAR_MAP_SIZE * sizeof(u32)))
if (!copy_n_from_user(character_map_data.shift_altgr_map, params.shift_altgr_map, CHAR_MAP_SIZE))
return -EFAULT;
auto map_name = get_syscall_path_argument(params.map_name);