powerel9
/
ghostscript
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

initial package creation 

Signed-off-by: Toshaan Bharvani <toshaan@powerel.org>
master
Toshaan Bharvani 2 years ago
commit
a260926536
5 changed files with 2338 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 64
      SOURCES/ghostscript-9.54.0-Fix-op-stack-management-in-sampled_data_c.patch
  2. 98
      SOURCES/ghostscript-9.54.0-covscan-fixes.patch
  3. 46
      SOURCES/ghostscript-9.54.0-gdevtxtw-null-also-pointers.patch
  4. 208
      SOURCES/ghostscript-9.54.0-include-pipe-handle-in-validation.patch
  5. 1922
      SPECS/ghostscript.spec

64
SOURCES/ghostscript-9.54.0-Fix-op-stack-management-in-sampled_data_c.patch
Unescape View File

@ -0,0 +1,64 @@ @@ -0,0 +1,64 @@
From 2a3129365d3bc0d4a41f107ef175920d1505d1f7 Mon Sep 17 00:00:00 2001
From: Chris Liddell <chris.liddell@artifex.com>
Date: Tue, 1 Jun 2021 19:57:16 +0100
Subject: [PATCH] Bug 703902: Fix op stack management in
sampled_data_continue()

Replace pop() (which does no checking, and doesn't handle stack extension
blocks) with ref_stack_pop() which does do all that.

We still use pop() in one case (it's faster), but we have to later use
ref_stack_pop() before calling sampled_data_sample() which also accesses the
op stack.

Fixes:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34675
---
psi/zfsample.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/psi/zfsample.c b/psi/zfsample.c
index 0e8e4bc8d..00cd0cfdd 100644
--- a/psi/zfsample.c
+++ b/psi/zfsample.c
@@ -533,15 +533,19 @@ sampled_data_continue(i_ctx_t *i_ctx_p)
for (j = 0; j < bps; j++)
data_ptr[bps * i + j] = (byte)(cv >> ((bps - 1 - j) * 8)); /* MSB first */
}
- pop(num_out); /* Move op to base of result values */
- /* Check if we are done collecting data. */
+ pop(num_out); /* Move op to base of result values */
+ /* From here on, we have to use ref_stack_pop() rather than pop()
+ so that it handles stack extension blocks properly, before calling
+ sampled_data_sample() which also uses the op stack.
+ */
+ /* Check if we are done collecting data. */
if (increment_cube_indexes(params, penum->indexes)) {
if (stack_depth_adjust == 0)
- pop(O_STACK_PAD); /* Remove spare stack space */
+ ref_stack_pop(&o_stack, O_STACK_PAD); /* Remove spare stack space */
else
- pop(stack_depth_adjust - num_out);
+ ref_stack_pop(&o_stack, stack_depth_adjust - num_out);
/* Execute the closing procedure, if given */
code = 0;
if (esp_finish_proc != 0)
@@ -554,11 +558,11 @@ sampled_data_continue(i_ctx_t *i_ctx_p)
if ((O_STACK_PAD - stack_depth_adjust) < 0) {
stack_depth_adjust = -(O_STACK_PAD - stack_depth_adjust);
check_op(stack_depth_adjust);
- pop(stack_depth_adjust);
+ ref_stack_pop(&o_stack, stack_depth_adjust);
}
else {
check_ostack(O_STACK_PAD - stack_depth_adjust);
- push(O_STACK_PAD - stack_depth_adjust);
+ ref_stack_push(&o_stack, O_STACK_PAD - stack_depth_adjust);
for (i=0;i<O_STACK_PAD - stack_depth_adjust;i++)
make_null(op - i);
}
--
2.35.1

98
SOURCES/ghostscript-9.54.0-covscan-fixes.patch
Unescape View File

@ -0,0 +1,98 @@ @@ -0,0 +1,98 @@
diff -ur ghostscript-9.54.0/base/gdevvec.c ghostscript-9.54.0-patched/base/gdevvec.c
--- ghostscript-9.54.0/base/gdevvec.c
+++ ghostscript-9.54.0-patched/base/gdevvec.c
@@ -643,7 +643,7 @@
*/
int
gdev_vector_dopath_segment(gdev_vector_dopath_state_t *state, int pe_op,
- gs_fixed_point vs[3])
+ gs_fixed_point *vs)
{
gx_device_vector *vdev = state->vdev;
const gs_matrix *const pmat = &state->scale_mat;
diff -ur ghostscript-9.54.0/base/gdevvec.h ghostscript-9.54.0-patched/base/gdevvec.h
--- ghostscript-9.54.0/base/gdevvec.h
+++ ghostscript-9.54.0-patched/base/gdevvec.h
@@ -306,7 +306,7 @@
/* Write a segment of a path using the default implementation. */
int gdev_vector_dopath_segment(gdev_vector_dopath_state_t *state, int pe_op,
- gs_fixed_point vs[3]);
+ gs_fixed_point *vs);
typedef struct gdev_vector_path_seg_record_s {
int op;
diff -ur ghostscript-9.54.0/base/gxclpath.c ghostscript-9.54.0-patched/base/gxclpath.c
--- ghostscript-9.54.0/base/gxclpath.c 2021-03-30 09:40:28.000000000 +0200
+++ ghostscript-9.54.0-patched/base/gxclpath.c 2021-11-23 11:06:14.670137576 +0100
@@ -715,10 +715,10 @@
} else {
code = set_cmd_put_op(&dp, cldev, pcls, cmd_opv_set_color_space,
2 + sizeof(clist_icc_color_t));
- memcpy(dp + 2, &(cldev->color_space.icc_info),
- sizeof(clist_icc_color_t));
if (code < 0)
return code;
+ memcpy(dp + 2, &(cldev->color_space.icc_info),
+ sizeof(clist_icc_color_t));
}
dp[1] = cldev->color_space.byte1;
pcls->known |= color_space_known;
diff -ur ghostscript-9.54.0/extract/src/mem.c ghostscript-9.54.0-patched/extract/src/mem.c
--- ghostscript-9.54.0/extract/src/mem.c 2021-03-30 09:40:28.000000000 +0200
+++ ghostscript-9.54.0-patched/extract/src/mem.c 2021-11-23 11:11:37.293082828 +0100
@@ -19,14 +19,24 @@
int extract_vasprintf(extract_alloc_t* alloc, char** out, const char* format, va_list va)
{
int n;
- int n2;
+ int ret;
va_list va2;
va_copy(va2, va);
n = vsnprintf(NULL, 0, format, va);
- if (n < 0) return n;
- if (extract_malloc(alloc, out, n + 1)) return -1;
- n2 = vsnprintf(*out, n + 1, format, va2);
+ if (n < 0)
+ {
+ ret = n;
+ goto end;
+ }
+ if (extract_malloc(alloc, out, n + 1))
+ {
+ ret = -1;
+ goto end;
+ }
+ vsnprintf(*out, n + 1, format, va2);
+ ret = 0;
+
+ end:
va_end(va2);
- assert(n2 == n);
- return n2;
+ return ret;
}
diff -ur ghostscript-9.54.0/psi/icie.h ghostscript-9.54.0-patched/psi/icie.h
--- ghostscript-9.54.0/psi/icie.h 2021-03-30 09:40:28.000000000 +0200
+++ ghostscript-9.54.0-patched/psi/icie.h 2021-10-29 12:48:43.405814563 +0200
@@ -53,7 +53,7 @@
/* Get 3 procedures from a dictionary. */
int dict_proc3_param(const gs_memory_t *mem, const ref *pdref,
- const char *kstr, ref proc3[3]);
+ const char *kstr, ref *proc3);
/* Get WhitePoint and BlackPoint values. */
int cie_points_param(const gs_memory_t *mem,
diff -ur ghostscript-9.54.0/psi/zcie.c ghostscript-9.54.0-patched/psi/zcie.c
--- ghostscript-9.54.0/psi/zcie.c 2021-03-30 09:40:28.000000000 +0200
+++ ghostscript-9.54.0-patched/psi/zcie.c 2021-11-02 14:36:28.463448728 +0100
@@ -144,7 +144,7 @@
/* Get 3 procedures from a dictionary. */
int
-dict_proc3_param(const gs_memory_t *mem, const ref *pdref, const char *kstr, ref proc3[3])
+dict_proc3_param(const gs_memory_t *mem, const ref *pdref, const char *kstr, ref *proc3)
{
return dict_proc_array_param(mem, pdref, kstr, 3, proc3);
}

46
SOURCES/ghostscript-9.54.0-gdevtxtw-null-also-pointers.patch
Unescape View File

@ -0,0 +1,46 @@ @@ -0,0 +1,46 @@
diff --git a/devices/vector/gdevtxtw.c b/devices/vector/gdevtxtw.c
index c6b95ed5b..f103d598b 100644
--- a/devices/vector/gdevtxtw.c
+++ b/devices/vector/gdevtxtw.c
@@ -1982,16 +1982,26 @@ textw_text_release(gs_text_enum_t *pte, client_name_t cname)
gx_device_txtwrite_t *const tdev = (gx_device_txtwrite_t *) pte->dev;
/* Free the working buffer where the Unicode was assembled from the enumerated text */
- if (penum->TextBuffer)
+ if (penum->TextBuffer) {
gs_free(tdev->memory, penum->TextBuffer, 1, penum->TextBufferIndex, "txtwrite free temporary text buffer");
- if (penum->Widths)
+ penum->TextBuffer = NULL;
+ }
+ if (penum->Widths) {
gs_free(tdev->memory, penum->Widths, sizeof(float), pte->text.size, "txtwrite free temporary widths array");
- if (penum->Advs)
+ penum->Widths = NULL;
+ }
+ if (penum->Advs) {
gs_free(tdev->memory, penum->Advs, 1, penum->TextBufferIndex, "txtwrite free temporary text buffer");
- if (penum->GlyphWidths)
+ penum->Advs = NULL;
+ }
+ if (penum->GlyphWidths) {
gs_free(tdev->memory, penum->GlyphWidths, 1, penum->TextBufferIndex, "txtwrite free temporary text buffer");
- if (penum->SpanDeltaX)
+ penum->GlyphWidths = NULL;
+ }
+ if (penum->SpanDeltaX) {
gs_free(tdev->memory, penum->SpanDeltaX, 1, penum->TextBufferIndex, "txtwrite free temporary text buffer");
+ penum->SpanDeltaX = NULL;
+ }
/* If this is copied away when we complete the text enumeration succesfully, then
* we set the pointer to NULL, if we get here with it non-NULL , then there was
* an error.
@@ -2008,6 +2018,7 @@ textw_text_release(gs_text_enum_t *pte, client_name_t cname)
if (penum->text_state->FontName)
gs_free(tdev->memory, penum->text_state->FontName, 1, penum->TextBufferIndex, "txtwrite free temporary font name copy");
gs_free(tdev->memory, penum->text_state, 1, sizeof(penum->text_state), "txtwrite free text state");
+ penum->text_state = NULL;
}
}
--
2.17.1

208
SOURCES/ghostscript-9.54.0-include-pipe-handle-in-validation.patch
Unescape View File

@ -0,0 +1,208 @@ @@ -0,0 +1,208 @@
diff --git a/base/gdevpipe.c b/base/gdevpipe.c
index 96d71f5d81..752a2f1d94 100644
--- a/base/gdevpipe.c
+++ b/base/gdevpipe.c
@@ -72,8 +72,28 @@ pipe_fopen(gx_io_device * iodev, const char *fname, const char *access,
#else
gs_lib_ctx_t *ctx = mem->gs_lib_ctx;
gs_fs_list_t *fs = ctx->core->fs;
+ /* The pipe device can be reached in two ways, explicltly with %pipe%
+ or implicitly with "|", so we have to check for both
+ */
+ char f[gp_file_name_sizeof];
+ const char *pipestr = "|";
+ const size_t pipestrlen = strlen(pipestr);
+ int code1;
+ const size_t preflen = strlen(iodev->dname);
+ const size_t nlen = strlen(fname);
+
+ if (preflen + nlen >= gp_file_name_sizeof)
+ return_error(gs_error_invalidaccess);
+
+ memcpy(f, iodev->dname, preflen);
+ memcpy(f + preflen, fname, nlen + 1);
+
+ code1 = gp_validate_path(mem, f, access);
+
+ memcpy(f, pipestr, pipestrlen);
+ memcpy(f + pipestrlen, fname, nlen + 1);
- if (gp_validate_path(mem, fname, access) != 0)
+ if (code1 != 0 && gp_validate_path(mem, f, access) != 0 )
return gs_error_invalidfileaccess;
/*
diff --git a/base/gp_mshdl.c b/base/gp_mshdl.c
index 2b964ed749..8d87ceadc0 100644
--- a/base/gp_mshdl.c
+++ b/base/gp_mshdl.c
@@ -95,8 +95,17 @@ mswin_handle_fopen(gx_io_device * iodev, const char *fname, const char *access,
long hfile; /* Correct for Win32, may be wrong for Win64 */
gs_lib_ctx_t *ctx = mem->gs_lib_ctx;
gs_fs_list_t *fs = ctx->core->fs;
+ char f[gp_file_name_sizeof];
+ const size_t preflen = strlen(iodev->dname);
+ const size_t nlen = strlen(fname);
- if (gp_validate_path(mem, fname, access) != 0)
+ if (preflen + nlen >= gp_file_name_sizeof)
+ return_error(gs_error_invalidaccess);
+
+ memcpy(f, iodev->dname, preflen);
+ memcpy(f + preflen, fname, nlen + 1);
+
+ if (gp_validate_path(mem, f, access) != 0)
return gs_error_invalidfileaccess;
/* First we try the open_handle method. */
diff --git a/base/gp_msprn.c b/base/gp_msprn.c
index ed48279685..746a974f78 100644
--- a/base/gp_msprn.c
+++ b/base/gp_msprn.c
@@ -168,8 +168,16 @@ mswin_printer_fopen(gx_io_device * iodev, const char *fname, const char *access,
uintptr_t *ptid = &((tid_t *)(iodev->state))->tid;
gs_lib_ctx_t *ctx = mem->gs_lib_ctx;
gs_fs_list_t *fs = ctx->core->fs;
+ const size_t preflen = strlen(iodev->dname);
+ const size_t nlen = strlen(fname);
- if (gp_validate_path(mem, fname, access) != 0)
+ if (preflen + nlen >= gp_file_name_sizeof)
+ return_error(gs_error_invalidaccess);
+
+ memcpy(pname, iodev->dname, preflen);
+ memcpy(pname + preflen, fname, nlen + 1);
+
+ if (gp_validate_path(mem, pname, access) != 0)
return gs_error_invalidfileaccess;
/* First we try the open_printer method. */
diff --git a/base/gp_os2pr.c b/base/gp_os2pr.c
index f852c71fc8..ba54cde66f 100644
--- a/base/gp_os2pr.c
+++ b/base/gp_os2pr.c
@@ -107,9 +107,20 @@ os2_printer_fopen(gx_io_device * iodev, const char *fname, const char *access,
FILE ** pfile, char *rfname, uint rnamelen)
{
os2_printer_t *pr = (os2_printer_t *)iodev->state;
- char driver_name[256];
+ char driver_name[gp_file_name_sizeof];
gs_lib_ctx_t *ctx = mem->gs_lib_ctx;
gs_fs_list_t *fs = ctx->core->fs;
+ const size_t preflen = strlen(iodev->dname);
+ const int size_t = strlen(fname);
+
+ if (preflen + nlen >= gp_file_name_sizeof)
+ return_error(gs_error_invalidaccess);
+
+ memcpy(driver_name, iodev->dname, preflen);
+ memcpy(driver_name + preflen, fname, nlen + 1);
+
+ if (gp_validate_path(mem, driver_name, access) != 0)
+ return gs_error_invalidfileaccess;
/* First we try the open_printer method. */
/* Note that the loop condition here ensures we don't
diff --git a/base/gslibctx.c b/base/gslibctx.c
index 6dfed6cd5a..318039fad0 100644
--- a/base/gslibctx.c
+++ b/base/gslibctx.c
@@ -655,82 +655,39 @@ rewrite_percent_specifiers(char *s)
int
gs_add_outputfile_control_path(gs_memory_t *mem, const char *fname)
{
- char *fp, f[gp_file_name_sizeof];
- const int pipe = 124; /* ASCII code for '|' */
- const int len = strlen(fname);
- int i, code;
+ char f[gp_file_name_sizeof];
+ int code;
/* Be sure the string copy will fit */
- if (len >= gp_file_name_sizeof)
+ if (strlen(fname) >= gp_file_name_sizeof)
return gs_error_rangecheck;
strcpy(f, fname);
- fp = f;
/* Try to rewrite any %d (or similar) in the string */
rewrite_percent_specifiers(f);
- for (i = 0; i < len; i++) {
- if (f[i] == pipe) {
- fp = &f[i + 1];
- /* Because we potentially have to check file permissions at two levels
- for the output file (gx_device_open_output_file and the low level
- fopen API, if we're using a pipe, we have to add both the full string,
- (including the '|', and just the command to which we pipe - since at
- the pipe_fopen(), the leading '|' has been stripped.
- */
- code = gs_add_control_path(mem, gs_permit_file_writing, f);
- if (code < 0)
- return code;
- code = gs_add_control_path(mem, gs_permit_file_control, f);
- if (code < 0)
- return code;
- break;
- }
- if (!IS_WHITESPACE(f[i]))
- break;
- }
- code = gs_add_control_path(mem, gs_permit_file_control, fp);
+
+ code = gs_add_control_path(mem, gs_permit_file_control, f);
if (code < 0)
return code;
- return gs_add_control_path(mem, gs_permit_file_writing, fp);
+ return gs_add_control_path(mem, gs_permit_file_writing, f);
}
int
gs_remove_outputfile_control_path(gs_memory_t *mem, const char *fname)
{
- char *fp, f[gp_file_name_sizeof];
- const int pipe = 124; /* ASCII code for '|' */
- const int len = strlen(fname);
- int i, code;
+ char f[gp_file_name_sizeof];
+ int code;
/* Be sure the string copy will fit */
- if (len >= gp_file_name_sizeof)
+ if (strlen(fname) >= gp_file_name_sizeof)
return gs_error_rangecheck;
strcpy(f, fname);
- fp = f;
/* Try to rewrite any %d (or similar) in the string */
- for (i = 0; i < len; i++) {
- if (f[i] == pipe) {
- fp = &f[i + 1];
- /* Because we potentially have to check file permissions at two levels
- for the output file (gx_device_open_output_file and the low level
- fopen API, if we're using a pipe, we have to add both the full string,
- (including the '|', and just the command to which we pipe - since at
- the pipe_fopen(), the leading '|' has been stripped.
- */
- code = gs_remove_control_path(mem, gs_permit_file_writing, f);
- if (code < 0)
- return code;
- code = gs_remove_control_path(mem, gs_permit_file_control, f);
- if (code < 0)
- return code;
- break;
- }
- if (!IS_WHITESPACE(f[i]))
- break;
- }
- code = gs_remove_control_path(mem, gs_permit_file_control, fp);
+ rewrite_percent_specifiers(f);
+
+ code = gs_remove_control_path(mem, gs_permit_file_control, f);
if (code < 0)
return code;
- return gs_remove_control_path(mem, gs_permit_file_writing, fp);
+ return gs_remove_control_path(mem, gs_permit_file_writing, f);
}
int
--
2.17.1

1922
SPECS/ghostscript.spec
View File

File diff suppressed because it is too large Load Diff
Write Preview
Loading…
Cancel
Save