diff options
Diffstat (limited to 'meta/recipes-graphics/jpeg/files/CVE-2020-35538-1.patch')
| -rw-r--r-- | meta/recipes-graphics/jpeg/files/CVE-2020-35538-1.patch | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/meta/recipes-graphics/jpeg/files/CVE-2020-35538-1.patch b/meta/recipes-graphics/jpeg/files/CVE-2020-35538-1.patch new file mode 100644 index 0000000000..8a52ed01e9 --- /dev/null +++ b/meta/recipes-graphics/jpeg/files/CVE-2020-35538-1.patch @@ -0,0 +1,457 @@ +From 9120a247436e84c0b4eea828cb11e8f665fcde30 Mon Sep 17 00:00:00 2001 +From: DRC <information@libjpeg-turbo.org> +Date: Thu, 23 Jul 2020 21:24:38 -0500 +Subject: [PATCH] Fix jpeg_skip_scanlines() segfault w/merged upsamp + +The additional segfault mentioned in #244 was due to the fact that +the merged upsamplers use a different private structure than the +non-merged upsamplers. jpeg_skip_scanlines() was assuming the latter, so +when merged upsampling was enabled, jpeg_skip_scanlines() clobbered one +of the IDCT method pointers in the merged upsampler's private structure. + +For reasons unknown, the test image in #441 did not encounter this +segfault (too small?), but it encountered an issue similar to the one +fixed in 5bc43c7821df982f65aa1c738f67fbf7cba8bd69, whereby it was +necessary to set up a dummy postprocessing function in +read_and_discard_scanlines() when merged upsampling was enabled. +Failing to do so caused either a segfault in merged_2v_upsample() (due +to a NULL pointer being passed to jcopy_sample_rows()) or an error +("Corrupt JPEG data: premature end of data segment"), depending on the +number of scanlines skipped and whether the first scanline skipped was +an odd- or even-numbered row. + +Fixes #441 +Fixes #244 (for real this time) + +Upstream-Status: Backport [https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9120a247436e84c0b4eea828cb11e8f665fcde30] +CVE: CVE-2020-35538 +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + ChangeLog.md | 7 +++++ + jdapistd.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++------ + jdmerge.c | 46 +++++++-------------------------- + jdmerge.h | 47 ++++++++++++++++++++++++++++++++++ + jdmrg565.c | 10 ++++---- + jdmrgext.c | 6 ++--- + 6 files changed, 135 insertions(+), 53 deletions(-) + create mode 100644 jdmerge.h + +diff --git a/ChangeLog.md b/ChangeLog.md +index 2ebfe71..19d18fa 100644 +--- a/ChangeLog.md ++++ b/ChangeLog.md +@@ -54,6 +54,13 @@ a 16-bit binary PGM file into an RGB image buffer. + generated when using the `tjLoadImage()` function to load a 16-bit binary PPM + file into an extended RGB image buffer. + ++2. Fixed segfaults or "Corrupt JPEG data: premature end of data segment" errors ++in `jpeg_skip_scanlines()` that occurred when decompressing 4:2:2 or 4:2:0 JPEG ++images using the merged (non-fancy) upsampling algorithms (that is, when ++setting `cinfo.do_fancy_upsampling` to `FALSE`.) 2.0.0[6] was a similar fix, ++but it did not cover all cases. ++ ++ + 2.0.3 + ===== + +diff --git a/jdapistd.c b/jdapistd.c +index 2c808fa..91da642 100644 +--- a/jdapistd.c ++++ b/jdapistd.c +@@ -4,7 +4,7 @@ + * This file was part of the Independent JPEG Group's software: + * Copyright (C) 1994-1996, Thomas G. Lane. + * libjpeg-turbo Modifications: +- * Copyright (C) 2010, 2015-2018, D. R. Commander. ++ * Copyright (C) 2010, 2015-2018, 2020, D. R. Commander. + * Copyright (C) 2015, Google, Inc. + * For conditions of distribution and use, see the accompanying README.ijg + * file. +@@ -21,6 +21,8 @@ + #include "jinclude.h" + #include "jdmainct.h" + #include "jdcoefct.h" ++#include "jdmaster.h" ++#include "jdmerge.h" + #include "jdsample.h" + #include "jmemsys.h" + +@@ -304,6 +306,16 @@ noop_quantize(j_decompress_ptr cinfo, JSAMPARRAY input_buf, + } + + ++/* Dummy postprocessing function used by jpeg_skip_scanlines() */ ++LOCAL(void) ++noop_post_process (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, ++ JDIMENSION *in_row_group_ctr, ++ JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf, ++ JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail) ++{ ++} ++ ++ + /* + * In some cases, it is best to call jpeg_read_scanlines() and discard the + * output, rather than skipping the scanlines, because this allows us to +@@ -316,11 +328,17 @@ LOCAL(void) + read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + { + JDIMENSION n; ++ my_master_ptr master = (my_master_ptr)cinfo->master; + void (*color_convert) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION input_row, JSAMPARRAY output_buf, + int num_rows) = NULL; + void (*color_quantize) (j_decompress_ptr cinfo, JSAMPARRAY input_buf, + JSAMPARRAY output_buf, int num_rows) = NULL; ++ void (*post_process_data) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, ++ JDIMENSION *in_row_group_ctr, ++ JDIMENSION in_row_groups_avail, ++ JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, ++ JDIMENSION out_rows_avail) = NULL; + + if (cinfo->cconvert && cinfo->cconvert->color_convert) { + color_convert = cinfo->cconvert->color_convert; +@@ -332,6 +350,12 @@ read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + cinfo->cquantize->color_quantize = noop_quantize; + } + ++ if (master->using_merged_upsample && cinfo->post && ++ cinfo->post->post_process_data) { ++ post_process_data = cinfo->post->post_process_data; ++ cinfo->post->post_process_data = noop_post_process; ++ } ++ + for (n = 0; n < num_lines; n++) + jpeg_read_scanlines(cinfo, NULL, 1); + +@@ -340,6 +364,9 @@ read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + + if (color_quantize) + cinfo->cquantize->color_quantize = color_quantize; ++ ++ if (post_process_data) ++ cinfo->post->post_process_data = post_process_data; + } + + +@@ -382,7 +409,7 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + { + my_main_ptr main_ptr = (my_main_ptr)cinfo->main; + my_coef_ptr coef = (my_coef_ptr)cinfo->coef; +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_master_ptr master = (my_master_ptr)cinfo->master; + JDIMENSION i, x; + int y; + JDIMENSION lines_per_iMCU_row, lines_left_in_iMCU_row, lines_after_iMCU_row; +@@ -445,8 +472,16 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + main_ptr->buffer_full = FALSE; + main_ptr->rowgroup_ctr = 0; + main_ptr->context_state = CTX_PREPARE_FOR_IMCU; +- upsample->next_row_out = cinfo->max_v_samp_factor; +- upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ if (master->using_merged_upsample) { ++ my_merged_upsample_ptr upsample = ++ (my_merged_upsample_ptr)cinfo->upsample; ++ upsample->spare_full = FALSE; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } else { ++ my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ upsample->next_row_out = cinfo->max_v_samp_factor; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } + } + + /* Skipping is much simpler when context rows are not required. */ +@@ -458,8 +493,16 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + cinfo->output_scanline += lines_left_in_iMCU_row; + main_ptr->buffer_full = FALSE; + main_ptr->rowgroup_ctr = 0; +- upsample->next_row_out = cinfo->max_v_samp_factor; +- upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ if (master->using_merged_upsample) { ++ my_merged_upsample_ptr upsample = ++ (my_merged_upsample_ptr)cinfo->upsample; ++ upsample->spare_full = FALSE; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } else { ++ my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ upsample->next_row_out = cinfo->max_v_samp_factor; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } + } + } + +@@ -494,7 +537,14 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + cinfo->output_iMCU_row += lines_to_skip / lines_per_iMCU_row; + increment_simple_rowgroup_ctr(cinfo, lines_to_read); + } +- upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ if (master->using_merged_upsample) { ++ my_merged_upsample_ptr upsample = ++ (my_merged_upsample_ptr)cinfo->upsample; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } else { ++ my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } + return num_lines; + } + +@@ -535,7 +585,13 @@ jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines) + * bit odd, since "rows_to_go" seems to be redundantly keeping track of + * output_scanline. + */ +- upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ if (master->using_merged_upsample) { ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } else { ++ my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ upsample->rows_to_go = cinfo->output_height - cinfo->output_scanline; ++ } + + /* Always skip the requested number of lines. */ + return num_lines; +diff --git a/jdmerge.c b/jdmerge.c +index dff5a35..833ad67 100644 +--- a/jdmerge.c ++++ b/jdmerge.c +@@ -5,7 +5,7 @@ + * Copyright (C) 1994-1996, Thomas G. Lane. + * libjpeg-turbo Modifications: + * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB +- * Copyright (C) 2009, 2011, 2014-2015, D. R. Commander. ++ * Copyright (C) 2009, 2011, 2014-2015, 2020, D. R. Commander. + * Copyright (C) 2013, Linaro Limited. + * For conditions of distribution and use, see the accompanying README.ijg + * file. +@@ -40,41 +40,13 @@ + #define JPEG_INTERNALS + #include "jinclude.h" + #include "jpeglib.h" ++#include "jdmerge.h" + #include "jsimd.h" + #include "jconfigint.h" + + #ifdef UPSAMPLE_MERGING_SUPPORTED + + +-/* Private subobject */ +- +-typedef struct { +- struct jpeg_upsampler pub; /* public fields */ +- +- /* Pointer to routine to do actual upsampling/conversion of one row group */ +- void (*upmethod) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, +- JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf); +- +- /* Private state for YCC->RGB conversion */ +- int *Cr_r_tab; /* => table for Cr to R conversion */ +- int *Cb_b_tab; /* => table for Cb to B conversion */ +- JLONG *Cr_g_tab; /* => table for Cr to G conversion */ +- JLONG *Cb_g_tab; /* => table for Cb to G conversion */ +- +- /* For 2:1 vertical sampling, we produce two output rows at a time. +- * We need a "spare" row buffer to hold the second output row if the +- * application provides just a one-row buffer; we also use the spare +- * to discard the dummy last row if the image height is odd. +- */ +- JSAMPROW spare_row; +- boolean spare_full; /* T if spare buffer is occupied */ +- +- JDIMENSION out_row_width; /* samples per output row */ +- JDIMENSION rows_to_go; /* counts rows remaining in image */ +-} my_upsampler; +- +-typedef my_upsampler *my_upsample_ptr; +- + #define SCALEBITS 16 /* speediest right-shift on some machines */ + #define ONE_HALF ((JLONG)1 << (SCALEBITS - 1)) + #define FIX(x) ((JLONG)((x) * (1L << SCALEBITS) + 0.5)) +@@ -189,7 +161,7 @@ typedef my_upsampler *my_upsample_ptr; + LOCAL(void) + build_ycc_rgb_table(j_decompress_ptr cinfo) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + int i; + JLONG x; + SHIFT_TEMPS +@@ -232,7 +204,7 @@ build_ycc_rgb_table(j_decompress_ptr cinfo) + METHODDEF(void) + start_pass_merged_upsample(j_decompress_ptr cinfo) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + + /* Mark the spare buffer empty */ + upsample->spare_full = FALSE; +@@ -254,7 +226,7 @@ merged_2v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail) + /* 2:1 vertical sampling case: may need a spare row. */ + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + JSAMPROW work_ptrs[2]; + JDIMENSION num_rows; /* number of rows returned to caller */ + +@@ -305,7 +277,7 @@ merged_1v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail) + /* 1:1 vertical sampling case: much easier, never need a spare row. */ + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + + /* Just do the upsampling. */ + (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, +@@ -566,11 +538,11 @@ h2v2_merged_upsample_565D(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + GLOBAL(void) + jinit_merged_upsampler(j_decompress_ptr cinfo) + { +- my_upsample_ptr upsample; ++ my_merged_upsample_ptr upsample; + +- upsample = (my_upsample_ptr) ++ upsample = (my_merged_upsample_ptr) + (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE, +- sizeof(my_upsampler)); ++ sizeof(my_merged_upsampler)); + cinfo->upsample = (struct jpeg_upsampler *)upsample; + upsample->pub.start_pass = start_pass_merged_upsample; + upsample->pub.need_context_rows = FALSE; +diff --git a/jdmerge.h b/jdmerge.h +new file mode 100644 +index 0000000..b583396 +--- /dev/null ++++ b/jdmerge.h +@@ -0,0 +1,47 @@ ++/* ++ * jdmerge.h ++ * ++ * This file was part of the Independent JPEG Group's software: ++ * Copyright (C) 1994-1996, Thomas G. Lane. ++ * libjpeg-turbo Modifications: ++ * Copyright (C) 2020, D. R. Commander. ++ * For conditions of distribution and use, see the accompanying README.ijg ++ * file. ++ */ ++ ++#define JPEG_INTERNALS ++#include "jpeglib.h" ++ ++#ifdef UPSAMPLE_MERGING_SUPPORTED ++ ++ ++/* Private subobject */ ++ ++typedef struct { ++ struct jpeg_upsampler pub; /* public fields */ ++ ++ /* Pointer to routine to do actual upsampling/conversion of one row group */ ++ void (*upmethod) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, ++ JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf); ++ ++ /* Private state for YCC->RGB conversion */ ++ int *Cr_r_tab; /* => table for Cr to R conversion */ ++ int *Cb_b_tab; /* => table for Cb to B conversion */ ++ JLONG *Cr_g_tab; /* => table for Cr to G conversion */ ++ JLONG *Cb_g_tab; /* => table for Cb to G conversion */ ++ ++ /* For 2:1 vertical sampling, we produce two output rows at a time. ++ * We need a "spare" row buffer to hold the second output row if the ++ * application provides just a one-row buffer; we also use the spare ++ * to discard the dummy last row if the image height is odd. ++ */ ++ JSAMPROW spare_row; ++ boolean spare_full; /* T if spare buffer is occupied */ ++ ++ JDIMENSION out_row_width; /* samples per output row */ ++ JDIMENSION rows_to_go; /* counts rows remaining in image */ ++} my_merged_upsampler; ++ ++typedef my_merged_upsampler *my_merged_upsample_ptr; ++ ++#endif /* UPSAMPLE_MERGING_SUPPORTED */ +diff --git a/jdmrg565.c b/jdmrg565.c +index 1b87e37..53f1e16 100644 +--- a/jdmrg565.c ++++ b/jdmrg565.c +@@ -5,7 +5,7 @@ + * Copyright (C) 1994-1996, Thomas G. Lane. + * libjpeg-turbo Modifications: + * Copyright (C) 2013, Linaro Limited. +- * Copyright (C) 2014-2015, 2018, D. R. Commander. ++ * Copyright (C) 2014-2015, 2018, 2020, D. R. Commander. + * For conditions of distribution and use, see the accompanying README.ijg + * file. + * +@@ -19,7 +19,7 @@ h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr; +@@ -90,7 +90,7 @@ h2v1_merged_upsample_565D_internal(j_decompress_ptr cinfo, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr; +@@ -163,7 +163,7 @@ h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr0, outptr1; +@@ -259,7 +259,7 @@ h2v2_merged_upsample_565D_internal(j_decompress_ptr cinfo, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr0, outptr1; +diff --git a/jdmrgext.c b/jdmrgext.c +index b1c27df..c9a44d8 100644 +--- a/jdmrgext.c ++++ b/jdmrgext.c +@@ -4,7 +4,7 @@ + * This file was part of the Independent JPEG Group's software: + * Copyright (C) 1994-1996, Thomas G. Lane. + * libjpeg-turbo Modifications: +- * Copyright (C) 2011, 2015, D. R. Commander. ++ * Copyright (C) 2011, 2015, 2020, D. R. Commander. + * For conditions of distribution and use, see the accompanying README.ijg + * file. + * +@@ -25,7 +25,7 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr; +@@ -97,7 +97,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, + JDIMENSION in_row_group_ctr, + JSAMPARRAY output_buf) + { +- my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample; ++ my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample; + register int y, cred, cgreen, cblue; + int cb, cr; + register JSAMPROW outptr0, outptr1; +-- +2.25.1 + |