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Commit b9f1ec8c authored by Pengpeng Dong's avatar Pengpeng Dong Committed by Alexandre Julliard
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conhost: Validate width param in write_output.

Signed-off-by: 's avatarPengpeng Dong <dongpengpeng@uniontech.com> Signed-off-by: 's avatarJacek Caban <jacek@codeweavers.com> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent d22e8219
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programs/conhost/conhost.c
View file @ b9f1ec8c
...@@ -1984,6 +1984,8 @@ static NTSTATUS write_output( struct screen_buffer *screen_buffer, const struct ...@@ -1984,6 +1984,8 @@ static NTSTATUS write_output( struct screen_buffer *screen_buffer, const struct
char_info_t *dest; char_info_t *dest;
char *src; char *src;
if (*out_size == sizeof(SMALL_RECT) && !params->width) return STATUS_INVALID_PARAMETER;
entry_size = params->mode == CHAR_INFO_MODE_TEXTATTR ? sizeof(char_info_t) : sizeof(WCHAR); entry_size = params->mode == CHAR_INFO_MODE_TEXTATTR ? sizeof(char_info_t) : sizeof(WCHAR);
entry_cnt = (in_size - sizeof(*params)) / entry_size; entry_cnt = (in_size - sizeof(*params)) / entry_size;
......
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