25394c9d10
When .gnu.version_r is empty (allowed by readelf but warned by objdump), llvm-objdump -p may decode the next section as .gnu.version_r and may crash due to out-of-bounds C string reference. ELFFile<ELFT>::getVersionDependencies handles 0-entry .gnu.version_r gracefully. Just use it. Fix https://github.com/llvm/llvm-project/issues/57707 Differential Revision: https://reviews.llvm.org/D133751
26 lines
807 B
Plaintext
26 lines
807 B
Plaintext
# RUN: yaml2obj %s -o %t
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# RUN: llvm-objdump -p %t 2>&1 | FileCheck %s --check-prefix=BROKEN-AUX -DFILE=%t
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# BROKEN-AUX: Version References:
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# BROKEN-AUX-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 2: found a misaligned auxiliary entry at offset 0x11
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# BROKEN-AUX-NOT: {{.}}
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Flags: [ SHF_ALLOC ]
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Entries: [ 2 ]
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- Name: .gnu.version_r
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Type: SHT_GNU_verneed
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Flags: [ SHF_ALLOC ]
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Info: 1
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AddressAlign: 4
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## The byte offset to the auxiliary entry is 0x11, i.e. it is not correctly aligned in memory.
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Content: "0100010001000000110000000000000000000000"
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DynamicSymbols: []
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