Threats Tagged 'ubuntu-cve-2025-39698'
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Threats Tagged 'ubuntu-cve-2025-39698'
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In the Linux kernel, the following vulnerability has been resolved: io_uring/futex: ensure io_futex_wait() cleans up properly on failure The io_futex_data is allocated upfront and assigned to the io_kiocb async_data field, but the request isn't marked with REQ_F_ASYNC_DATA at that point. Those two should always go together, as the flag tells io_uring whether the field is valid or not. Additionally, on failure cleanup, the futex handler frees the data but does not clear ->async_data. Clear the data and the flag in the error path as well. Thanks to Trend Micro Zero Day Initiative and particularly ReDress for reporting this. Join the discussion | GCVE Database | 09/05/2025, 18:15:00 UTC Added: 07/31/2026, 15:42:10 UTC |
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