{"api_version":"1","generated_at":"2026-07-23T12:35:21+00:00","cve":"CVE-2023-52682","urls":{"html":"https://cve.report/CVE-2023-52682","api":"https://cve.report/api/cve/CVE-2023-52682.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-52682","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-52682"},"summary":{"title":"f2fs: fix to wait on block writeback for post_read case","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to wait on block writeback for post_read case\n\nIf inode is compressed, but not encrypted, it missed to call\nf2fs_wait_on_block_writeback() to wait for GCed page writeback\nin IPU write path.\n\nThread A\t\t\t\tGC-Thread\n\t\t\t\t\t- f2fs_gc\n\t\t\t\t\t - do_garbage_collect\n\t\t\t\t\t  - gc_data_segment\n\t\t\t\t\t   - move_data_block\n\t\t\t\t\t    - f2fs_submit_page_write\n\t\t\t\t\t     migrate normal cluster's block via\n\t\t\t\t\t     meta_inode's page cache\n- 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fix to wait on block writeback for post_read case","CVE":"CVE-2023-52682","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"52682","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to wait on block writeback for post_read case\n\nIf inode is compressed, but not encrypted, it missed to call\nf2fs_wait_on_block_writeback() to wait for GCed page writeback\nin IPU write path.\n\nThread A\t\t\t\tGC-Thread\n\t\t\t\t\t- f2fs_gc\n\t\t\t\t\t - do_garbage_collect\n\t\t\t\t\t  - gc_data_segment\n\t\t\t\t\t   - move_data_block\n\t\t\t\t\t    - f2fs_submit_page_write\n\t\t\t\t\t     migrate normal cluster's block via\n\t\t\t\t\t     meta_inode's page cache\n- f2fs_write_single_data_page\n - f2fs_do_write_data_page\n  - f2fs_inplace_write_data\n   - f2fs_submit_page_bio\n\nIRQ\n- f2fs_read_end_io\n\t\t\t\t\tIRQ\n\t\t\t\t\told data overrides new data due to\n\t\t\t\t\tout-of-order GC and common IO.\n\t\t\t\t\t- f2fs_read_end_io","Type":"Description","Title":"f2fs: fix to wait on block writeback for post_read case"}]}}}