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Kernel: Clearing promises with pledge("") should fail
Thanks Sergey for catching this brain-fart. :^)
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1 changed files with 2 additions and 2 deletions
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@ -4417,7 +4417,7 @@ int Process::sys$pledge(const Syscall::SC_pledge_params* user_params)
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u32 new_promises = 0;
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if (!parse_pledge(promises, new_promises))
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return -EINVAL;
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if (m_promises && new_promises & ~m_promises)
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if (m_promises && (!new_promises || new_promises & ~m_promises))
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return -EPERM;
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m_promises = new_promises;
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}
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@ -4426,7 +4426,7 @@ int Process::sys$pledge(const Syscall::SC_pledge_params* user_params)
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u32 new_execpromises = 0;
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if (!parse_pledge(execpromises, new_execpromises))
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return -EINVAL;
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if (m_execpromises && new_execpromises & ~m_execpromises)
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if (m_execpromises && (!new_execpromises || new_execpromises & ~m_execpromises))
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return -EPERM;
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m_execpromises = new_execpromises;
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}
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