{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-30T22:52:35.172","vulnerabilities":[{"cve":{"id":"CVE-2023-54068","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-24T13:16:08.640","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()\n\nBUG_ON() will be triggered when writing files concurrently,\nbecause the same page is writtenback multiple times.\n\n1597 void folio_end_writeback(struct folio *folio)\n1598 {\n\t\t......\n1618     if (!__folio_end_writeback(folio))\n1619         BUG();\n\t\t......\n1625 }\n\nkernel BUG at mm/filemap.c:1619!\nCall Trace:\n <TASK>\n f2fs_write_end_io+0x1a0/0x370\n blk_update_request+0x6c/0x410\n blk_mq_end_request+0x15/0x130\n blk_complete_reqs+0x3c/0x50\n __do_softirq+0xb8/0x29b\n ? sort_range+0x20/0x20\n run_ksoftirqd+0x19/0x20\n smpboot_thread_fn+0x10b/0x1d0\n kthread+0xde/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x22/0x30\n </TASK>\n\nBelow is the concurrency scenario:\n\n[Process A]\t\t[Process B]\t\t[Process C]\nf2fs_write_raw_pages()\n  - redirty_page_for_writepage()\n  - unlock page()\n\t\t\tf2fs_do_write_data_page()\n\t\t\t  - lock_page()\n\t\t\t  - clear_page_dirty_for_io()\n\t\t\t  - set_page_writeback() [1st writeback]\n\t\t\t    .....\n\t\t\t    - unlock page()\n\n\t\t\t\t\t\tgeneric_perform_write()\n\t\t\t\t\t\t  - f2fs_write_begin()\n\t\t\t\t\t\t    - wait_for_stable_page()\n\n\t\t\t\t\t\t  - f2fs_write_end()\n\t\t\t\t\t\t    - set_page_dirty()\n\n  - lock_page()\n    - f2fs_do_write_data_page()\n      - set_page_writeback() [2st writeback]\n\nThis problem was introduced by the previous commit 7377e853967b (\"f2fs:\ncompress: fix potential deadlock of compress file\"). All pagelocks were\nreleased in f2fs_write_raw_pages(), but whether the page was\nin the writeback state was ignored in the subsequent writing process.\nLet's fix it by waiting for the page to writeback before writing."}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/169134da419cb8ffbe3b0743bc24573e16952ea9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6604df2a9d07ba8f8fb1ac14046c2c83776faa4f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9940877c4fe752923a53f0f7372f2f152b6eccf0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a8226a45b2a9ce83ba7a167a387a00fecc319e71","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ad31eed06c3b4d63b2d38322a271d4009aee4bb3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/babedcbac164cec970872b8097401ca913a80e61","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}