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Add a few bounds checks

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Kovid Goyal
2017-11-05 10:27:10 +05:30
parent a614fe615f
commit aaf593d2df
1 changed files with 3 additions and 3 deletions
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6
kitty/parser.c
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@@ -483,13 +483,13 @@ parse_sgr(Screen *screen, uint32_t *buf, unsigned int num, unsigned int *params,
} }
switch(state) { switch(state) {
case START: case START:
params[num_params++] = 0; if (num_params < MAX_PARAMS) params[num_params++] = 0;
SEND_SGR; SEND_SGR;
break; break;
case COLOR1: case COLOR1:
case NORMAL: case NORMAL:
case MULTIPLE: case MULTIPLE:
if (i > num_start) { READ_PARAM; } if (i > num_start && num_params < MAX_PARAMS) { READ_PARAM; }
if (num_params) { SEND_SGR; } if (num_params) { SEND_SGR; }
else { REPORT_ERROR("Incomplete SGR code"); } else { REPORT_ERROR("Incomplete SGR code"); }
break; break;
@@ -497,7 +497,7 @@ parse_sgr(Screen *screen, uint32_t *buf, unsigned int num, unsigned int *params,
REPORT_ERROR("Invalid SGR code containing incomplete semi-colon separated color sequence"); REPORT_ERROR("Invalid SGR code containing incomplete semi-colon separated color sequence");
break; break;
case COLOR3: case COLOR3:
if (i > num_start) READ_PARAM; if (i > num_start && num_params < MAX_PARAMS) READ_PARAM;
if (num_params != 5) { if (num_params != 5) {
REPORT_ERROR("Invalid SGR code containing incomplete semi-colon separated color sequence"); REPORT_ERROR("Invalid SGR code containing incomplete semi-colon separated color sequence");
break; break;