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From f54414c8b15b2c27d1dcadd92cfe84f6d15f18dc Mon Sep 17 00:00:00 2001
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From: Julian Smith <jules@op59.net>
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Date: Thu, 31 Oct 2019 13:12:47 +0000
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Subject: [PATCH] Bug 701808: return error from okiibm_print_page1() if x_dpi
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too high.
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Avoids asan error in:
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./sanbin/gs -dBATCH -dNOPAUSE -dSAFER -r599 -sOutputFile=tmp -sDEVICE=okiibm ../bug-701808.pdf
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---
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devices/gdevokii.c | 46 ++++++++++++++++++++++++++++++++--------------
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1 file changed, 32 insertions(+), 14 deletions(-)
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diff --git a/devices/gdevokii.c b/devices/gdevokii.c
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index d8929a22c..97a1c3b88 100644
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--- a/devices/gdevokii.c
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+++ b/devices/gdevokii.c
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@@ -96,23 +96,41 @@ okiibm_print_page1(gx_device_printer *pdev, gp_file *prn_stream, int y_9pin_high
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-1, 0 /*60*/, 1 /*120*/, -1, 3 /*240*/
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};
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- int in_y_mult = (y_9pin_high ? 2 : 1);
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- int line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
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- /* Note that in_size is a multiple of 8. */
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- int in_size = line_size * (8 * in_y_mult);
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- byte *buf1 = (byte *)gs_malloc(pdev->memory, in_size, 1, "okiibm_print_page(buf1)");
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- byte *buf2 = (byte *)gs_malloc(pdev->memory, in_size, 1, "okiibm_print_page(buf2)");
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- byte *in = buf1;
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- byte *out = buf2;
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- int out_y_mult = 1;
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- int x_dpi = pdev->x_pixels_per_inch;
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- char start_graphics = graphics_modes_9[x_dpi / 60];
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- int first_pass = (start_graphics == 3 ? 1 : 0);
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- int last_pass = first_pass * 2;
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- int y_passes = (y_9pin_high ? 2 : 1);
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+ int in_y_mult;
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+ int line_size;
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+ int in_size;
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+ byte *buf1;
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+ byte *buf2;
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+ byte *in;
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+ byte *out;
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+ int out_y_mult;
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+ int x_dpi;
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+ char start_graphics;
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+ int first_pass;
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+ int last_pass;
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+ int y_passes;
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int skip = 0, lnum = 0, pass, ypass;
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int y_step = 0;
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+ x_dpi = pdev->x_pixels_per_inch;
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+ if (x_dpi / 60 >= sizeof(graphics_modes_9)/sizeof(graphics_modes_9[0])) {
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+ return_error(gs_error_rangecheck);
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+ }
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+ in_y_mult = (y_9pin_high ? 2 : 1);
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+ line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
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+ /* Note that in_size is a multiple of 8. */
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+ in_size = line_size * (8 * in_y_mult);
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+ buf1 = (byte *)gs_malloc(pdev->memory, in_size, 1, "okiibm_print_page(buf1)");
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+ buf2 = (byte *)gs_malloc(pdev->memory, in_size, 1, "okiibm_print_page(buf2)");
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+ in = buf1;
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+ out = buf2;
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+ out_y_mult = 1;
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+ start_graphics = graphics_modes_9[x_dpi / 60];
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+ first_pass = (start_graphics == 3 ? 1 : 0);
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+ last_pass = first_pass * 2;
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+ y_passes = (y_9pin_high ? 2 : 1);
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+ y_step = 0;
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+
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/* Check allocations */
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if ( buf1 == 0 || buf2 == 0 )
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{ if ( buf1 )
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--
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2.35.3
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