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# HG changeset patch
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# User ccheung
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# Date 1564075552 25200
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# Thu Jul 25 10:25:52 2019 -0700
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# Node ID 1edf6cc224fbf975eadf2a1810f67816a8607d30
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# Parent 73dbc713d4ddbdbeae71375db1603d85cef47f99
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8228407: JVM crashes with shared archive file mismatch
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Summary: Stop processing other header fields if initial header check has failed.
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Reviewed-by: dholmes, jiangli
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diff --git a/src/hotspot/share/memory/filemap.cpp b/src/hotspot/share/memory/filemap.cpp
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--- a/src/hotspot/share/memory/filemap.cpp
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+++ b/src/hotspot/share/memory/filemap.cpp
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@@ -1287,7 +1287,9 @@
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}
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init_from_file(_fd);
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- if (!validate_header()) {
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+ // UseSharedSpaces could be disabled if the checking of some of the header fields in
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+ // init_from_file has failed.
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+ if (!UseSharedSpaces || !validate_header()) {
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return false;
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}
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return true;
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diff --git a/test/hotspot/jtreg/runtime/appcds/SharedArchiveConsistency.java b/test/hotspot/jtreg/runtime/appcds/SharedArchiveConsistency.java
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--- a/test/hotspot/jtreg/runtime/appcds/SharedArchiveConsistency.java
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+++ b/test/hotspot/jtreg/runtime/appcds/SharedArchiveConsistency.java
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@@ -385,8 +385,16 @@
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output.shouldNotContain("Checksum verification failed");
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copyFile(orgJsaFile, jsa);
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+ // modify _jvm_ident and run with -Xshare:auto
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+ System.out.println("\n2b. Corrupt _jvm_ident run with -Xshare:auto\n");
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+ modifyJvmIdent();
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+ output = TestCommon.execAuto(execArgs);
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+ output.shouldContain("The shared archive file was created by a different version or build of HotSpot");
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+ output.shouldContain("Hello World");
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+
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+ copyFile(orgJsaFile, jsa);
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// modify _magic and _paths_misc_info_size, test should fail
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- System.out.println("\n2b. Corrupt _magic and _paths_misc_info_size, should fail\n");
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+ System.out.println("\n2c. Corrupt _magic and _paths_misc_info_size, should fail\n");
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modifyHeaderIntField(offset_magic, 0x00000000);
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modifyHeaderIntField(offset_paths_misc_info_size, Integer.MAX_VALUE);
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output = TestCommon.execCommon(execArgs);
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@@ -395,7 +403,7 @@
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copyFile(orgJsaFile, jsa);
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// modify _version and _paths_misc_info_size, test should fail
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- System.out.println("\n2c. Corrupt _version and _paths_misc_info_size, should fail\n");
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+ System.out.println("\n2d. Corrupt _version and _paths_misc_info_size, should fail\n");
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modifyHeaderIntField(offset_version, 0x00000000);
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modifyHeaderIntField(offset_paths_misc_info_size, Integer.MAX_VALUE);
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output = TestCommon.execCommon(execArgs);
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