decompiler: fix INT_LEFT for constant bitshift by 0 and varnodes > 8#8706
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fkil wants to merge 1 commit intoNationalSecurityAgency:masterfrom
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decompiler: fix INT_LEFT for constant bitshift by 0 and varnodes > 8#8706fkil wants to merge 1 commit intoNationalSecurityAgency:masterfrom
fkil wants to merge 1 commit intoNationalSecurityAgency:masterfrom
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Fixes NationalSecurityAgency#8705 In case of a 0-bitshift, the mask computation was performing a 64-bit shift, assuming the result will be 0. However, such a bitshift is undefined and will be equal to a NOP on some architectures. This is fixed by explicitly checking for a shift-amount of 0.
ryanmkurtz
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Feature: Decompiler
Status: Triage
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Fixed: 402d10d |
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Fixes #8705
In case of a 0-bitshift, the mask computation was performing a 64-bit shift, assuming the result will be 0. However, such a bitshift is undefined and will be equal to a NOP on some architectures.
This is fixed by explicitly checking for a shift-amount of 0.