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feat(vg_lite): add stricter path data checking (#5292)

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Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>
This commit is contained in:
_VIFEXTech
2024-01-12 16:52:23 +08:00
committed by GitHub
parent b713ec33d9
commit 53942e3d16
1 changed files with 14 additions and 3 deletions
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17
src/draw/vg_lite/lv_vg_lite_utils.c
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@@ -468,6 +468,8 @@ void lv_vg_lite_buffer_format_bytes(
*mul = 3;
break;
default:
LV_LOG_ERROR("unsupport color format: 0x%" PRIx32, (uint32_t)format);
LV_ASSERT(false);
break;
}
}
@@ -812,8 +814,8 @@ bool lv_vg_lite_path_check(const vg_lite_path_t * path)
return false;
}
uint8_t * cur = path->path;
uint8_t * end = cur + path->path_length;
const uint8_t * cur = path->path;
const uint8_t * end = cur + path->path_length;
while(cur < end) {
/* get op code */
@@ -824,10 +826,19 @@ bool lv_vg_lite_path_check(const vg_lite_path_t * path)
/* get next op code */
cur += (fmt_len * (1 + arg_len)) ;
/* break if end */
if(op_code == VLC_OP_END) {
break;
}
}
if(cur != end) {
LV_LOG_ERROR("path length(%d) error", (int)path->path_length);
return false;
}
uint8_t end_op_code = VLC_GET_OP_CODE(end - fmt_len);
if(end_op_code != VLC_OP_END) {
LV_LOG_ERROR("%d (%s) -> is NOT VLC_OP_END", end_op_code, lv_vg_lite_vlc_op_string(end_op_code));
return false;