Author: mm
Date: Fri Jun 28 22:41:17 2019
New Revision: 349527
URL: https://svnweb.freebsd.org/changeset/base/349527
Log:
MFV r349454:
Sync libarchive with vendor.
Relevant vendor changes:
PR #1217: RAR5 reader - fix ARM filter going beyond window buffer boundary
(OSS-Fuzz 15431)
PR #1218: Fixes to sparse file handling
MFC after: 1 week
Added:
head/contrib/libarchive/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu
- copied unchanged from r349454,
vendor/libarchive/dist/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu
Modified:
head/contrib/libarchive/libarchive/archive_read.c
head/contrib/libarchive/libarchive/archive_read_disk_posix.c
head/contrib/libarchive/libarchive/archive_read_support_format_rar5.c
head/contrib/libarchive/libarchive/test/test_read_format_rar5.c
Directory Properties:
head/contrib/libarchive/ (props changed)
Modified: head/contrib/libarchive/libarchive/archive_read.c
==============================================================================
--- head/contrib/libarchive/libarchive/archive_read.c Fri Jun 28 22:40:34
2019 (r349526)
+++ head/contrib/libarchive/libarchive/archive_read.c Fri Jun 28 22:41:17
2019 (r349527)
@@ -844,7 +844,8 @@ archive_read_data(struct archive *_a, void *buff, size
dest = (char *)buff;
while (s > 0) {
- if (a->read_data_remaining == 0) {
+ if (a->read_data_offset == a->read_data_output_offset &&
+ a->read_data_remaining == 0) {
read_buf = a->read_data_block;
a->read_data_is_posix_read = 1;
a->read_data_requested = s;
Modified: head/contrib/libarchive/libarchive/archive_read_disk_posix.c
==============================================================================
--- head/contrib/libarchive/libarchive/archive_read_disk_posix.c Fri Jun
28 22:40:34 2019 (r349526)
+++ head/contrib/libarchive/libarchive/archive_read_disk_posix.c Fri Jun
28 22:41:17 2019 (r349527)
@@ -1143,6 +1143,8 @@ _archive_read_next_header2(struct archive *_a, struct
t->entry_fd = -1;
}
+ archive_entry_clear(entry);
+
for (;;) {
r = next_entry(a, t, entry);
if (t->entry_fd >= 0) {
Modified: head/contrib/libarchive/libarchive/archive_read_support_format_rar5.c
==============================================================================
--- head/contrib/libarchive/libarchive/archive_read_support_format_rar5.c
Fri Jun 28 22:40:34 2019 (r349526)
+++ head/contrib/libarchive/libarchive/archive_read_support_format_rar5.c
Fri Jun 28 22:41:17 2019 (r349527)
@@ -623,9 +623,9 @@ static int run_arm_filter(struct rar5* rar, struct fil
for(i = 0; i < flt->block_length - 3; i += 4) {
uint8_t* b = &rar->cstate.window_buf[
(rar->cstate.solid_offset +
- flt->block_start + i) & rar->cstate.window_mask];
+ flt->block_start + i + 3) & rar->cstate.window_mask];
- if(b[3] == 0xEB) {
+ if(*b == 0xEB) {
/* 0xEB = ARM's BL (branch + link) instruction. */
offset = read_filter_data(rar,
(rar->cstate.solid_offset + flt->block_start + i) &
Modified: head/contrib/libarchive/libarchive/test/test_read_format_rar5.c
==============================================================================
--- head/contrib/libarchive/libarchive/test/test_read_format_rar5.c Fri Jun
28 22:40:34 2019 (r349526)
+++ head/contrib/libarchive/libarchive/test/test_read_format_rar5.c Fri Jun
28 22:41:17 2019 (r349527)
@@ -1215,3 +1215,18 @@ DEFINE_TEST(test_read_format_rar5_different_window_siz
EPILOGUE();
}
+
+DEFINE_TEST(test_read_format_rar5_arm_filter_on_window_boundary)
+{
+ char buf[4096];
+ PROLOGUE("test_read_format_rar5_arm_filter_on_window_boundary.rar");
+
+ /* Return codes of those calls are ignored, because this sample file
+ * is invalid. However, the unpacker shouldn't produce any SIGSEGV
+ * errors during processing. */
+
+ (void) archive_read_next_header(a, &ae);
+ while(0 != archive_read_data(a, buf, sizeof(buf))) {}
+
+ EPILOGUE();
+}
Copied:
head/contrib/libarchive/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu
(from r349454,
vendor/libarchive/dist/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++
head/contrib/libarchive/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu
Fri Jun 28 22:41:17 2019 (r349527, copy of r349454,
vendor/libarchive/dist/libarchive/test/test_read_format_rar5_arm_filter_on_window_boundary.rar.uu)
@@ -0,0 +1,9 @@
+begin 600 test_read_format_rar5_arm_filter_on_window_boundary.rar
+M4F%R(1H'`0"-[P+2``(''(`'`/[_(`#_!``"(0$``/X(TB`!'O___P@``/W_
+M_Q``_]U84%"0_P1LAFVQ9,S,M[$`20"#__\`_P#_`/G___!DSR0V2+$`20`Z
+M@R[_______\I:!<**-@P70D`KB1!<YOZFQ/___^<`^5L*0```/________\_
+M`0#__RE@%PHHV#!="0"N)$%S"```_?]84/7___]0D/\$;(9ML63,S/\R'Q\?
+M'Q\?'Q\?'Q\?'Q\?'[$`20"#__\`_P#_`/G___!DSR0V2+$`20`Z@R[_____
+0_Q\?'Q\?'Q\?'Q]5"E`*4```
+`
+end
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