mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-14 10:24:32 -05:00
54 lines
2.1 KiB
Diff
54 lines
2.1 KiB
Diff
From b7877b7a39d68acb35c40d1df1b588f067cca800 Mon Sep 17 00:00:00 2001
|
|
From: Almaz Mingaleev <mingaleev@google.com>
|
|
Date: Wed, 10 Jul 2024 13:38:35 +0100
|
|
Subject: [PATCH] Do not accept zip files with invalid headers.
|
|
|
|
According to Section 4.3.6 in [1] non-empty zip file starts with
|
|
local file header. 4.3.1 allows empty files, and in such case
|
|
file starts with "end of central directory record".
|
|
|
|
This aligns ZipFile with libziparchive modulo empty zip files -
|
|
libziparchive rejects them.
|
|
|
|
Tests are skipped because sc-dev branch uses ART module
|
|
prebuilts, but builds tests from sources which leads to presubmit
|
|
failures.
|
|
|
|
Ignore-AOSP-First: b/309938635#comment1
|
|
|
|
[1] https://pkwaredownloads.blob.core.windows.net/pem/APPNOTE.txt
|
|
|
|
Bug: 309938635
|
|
Test: CtsLibcoreTestCases
|
|
Test: CtsLibcoreOjTestCases
|
|
(cherry picked from commit 288a44a1817707110cdf5a3a6ef8377c6e10cce2)
|
|
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:43e428a99aa89a9dfbe93000171721ecbfc31b88)
|
|
Merged-In: I545cdd49ec3cc138331145f4716c8148662a478b
|
|
Change-Id: I545cdd49ec3cc138331145f4716c8148662a478b
|
|
---
|
|
ojluni/src/main/native/zip_util.c | 11 +++++++++++
|
|
1 file changed, 11 insertions(+)
|
|
|
|
diff --git a/ojluni/src/main/native/zip_util.c b/ojluni/src/main/native/zip_util.c
|
|
index e2503e84c2e..1f38b1783f1 100644
|
|
--- a/ojluni/src/main/native/zip_util.c
|
|
+++ b/ojluni/src/main/native/zip_util.c
|
|
@@ -876,6 +876,17 @@ ZIP_Put_In_Cache0(const char *name, ZFILE zfd, char **pmsg, jlong lastModified,
|
|
zip->locsig = JNI_TRUE;
|
|
else
|
|
zip->locsig = JNI_FALSE;
|
|
+
|
|
+ // BEGIN Android-changed: do not accept files with invalid header.
|
|
+ if (GETSIG(errbuf) != LOCSIG && GETSIG(errbuf) != ENDSIG) {
|
|
+ if (pmsg) {
|
|
+ *pmsg = strdup("Entry at offset zero has invalid LFH signature.");
|
|
+ }
|
|
+ ZFILE_Close(zfd);
|
|
+ freeZip(zip);
|
|
+ return NULL;
|
|
+ }
|
|
+ // END Android-changed: do not accept files with invalid header.
|
|
}
|
|
|
|
// This lseek is safe because it happens during construction of the ZipFile
|