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authorJonas Devlieghere <jonas@devlieghere.com>2017-09-13 13:43:01 +0000
committerJonas Devlieghere <jonas@devlieghere.com>2017-09-13 13:43:01 +0000
commit81f5abe1add34519bcede582b6b1ca3d6ed895c1 (patch)
treefafd5e04f6b0f426ce622f12d4cafb92dd176246 /llvm/test/Object
parent35f4d7ca463903b3c12c1a00cdd1badb9ef2ca08 (diff)
downloadbcm5719-llvm-81f5abe1add34519bcede582b6b1ca3d6ed895c1.tar.gz
bcm5719-llvm-81f5abe1add34519bcede582b6b1ca3d6ed895c1.zip
[MachO] Prevent heap overflow when load command extends past EOF
This patch fixes a heap-buffer-overflow when a malformed Mach-O has a load command who's size extends past the end of the binary. Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3225 Differential revision: https://reviews.llvm.org/D37439 llvm-svn: 313145
Diffstat (limited to 'llvm/test/Object')
-rw-r--r--llvm/test/Object/Inputs/macho-invalid-dylib-cmdsize-past-eofbin0 -> 56 bytes
-rw-r--r--llvm/test/Object/macho-invalid.test3
2 files changed, 3 insertions, 0 deletions
diff --git a/llvm/test/Object/Inputs/macho-invalid-dylib-cmdsize-past-eof b/llvm/test/Object/Inputs/macho-invalid-dylib-cmdsize-past-eof
new file mode 100644
index 00000000000..feefab933ec
--- /dev/null
+++ b/llvm/test/Object/Inputs/macho-invalid-dylib-cmdsize-past-eof
Binary files differ
diff --git a/llvm/test/Object/macho-invalid.test b/llvm/test/Object/macho-invalid.test
index e956680a2ce..1a7ac21d744 100644
--- a/llvm/test/Object/macho-invalid.test
+++ b/llvm/test/Object/macho-invalid.test
@@ -284,6 +284,9 @@ INVALID-DYLIB-WRONG-FILETYPE: macho-invalid-dylib-wrong-filetype': truncated or
RUN: not llvm-objdump -macho -private-headers %p/Inputs/macho-invalid-dylib-no-id 2>&1 | FileCheck -check-prefix INVALID-DYLIB-NO-ID %s
INVALID-DYLIB-NO-ID: macho-invalid-dylib-no-id': truncated or malformed object (no LC_ID_DYLIB load command in dynamic library filetype)
+RUN: not llvm-objdump -macho -private-headers %p/Inputs/macho-invalid-dylib-cmdsize-past-eof 2>&1 | FileCheck -check-prefix INVALID-DYLIB-CMDSIZE %s
+INVALID-DYLIB-CMDSIZE: macho-invalid-dylib-cmdsize-past-eof': truncated or malformed object (load command 0 extends past end of file)
+
RUN: not llvm-objdump -macho -private-headers %p/Inputs/macho-invalid-uuid-more-than-one 2>&1 | FileCheck -check-prefix INVALID-UUID-MORE-THAN-ONE %s
INVALID-UUID-MORE-THAN-ONE: macho-invalid-uuid-more-than-one': truncated or malformed object (more than one LC_UUID command)
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