CVE-2023-54068f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()
- 7.8HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages() BUG_ON() will be triggered when writing files concurrently, because the same page is writtenback multiple times. 1597 void folio_end_writeback(struct folio *folio) 1598 { ...... 1618 if (!__folio_end_writeback(folio)) 1619 BUG(); ...... 1625 } kernel BUG at mm/filemap.c:1619! Call Trace: <TASK> f2fs_write_end_io+0x1a0/0x370 blk_update_request+0x6c/0x410 blk_mq_end_request+0x15/0x130 blk_complete_reqs+0x3c/0x50 __do_softirq+0xb8/0x29b ? sort_range+0x20/0x20 run_ksoftirqd+0x19/0x20 smpboot_thread_fn+0x10b/0x1d0 kthread+0xde/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 </TASK> Below is the concurrency scenario: [Process A] [Process B] [Process C] f2fs_write_raw_pages() - redirty_page_for_writepage() - unlock page() f2fs_do_write_data_page() - lock_page() - clear_page_dirty_for_io() - set_page_writeback() [1st writeback] ..... - unlock page() generic_perform_write() - f2fs_write_begin() - wait_for_stable_page() - f2fs_write_end() - set_page_dirty() - lock_page() - f2fs_do_write_data_page() - set_page_writeback() [2st writeback] This problem was introduced by the previous commit 7377e853967b ("f2fs: compress: fix potential deadlock of compress file"). All pagelocks were released in f2fs_write_raw_pages(), but whether the page was in the writeback state was ignored in the subsequent writing process. Let's fix it by waiting for the page to writeback before writing.
Timeline
ID reserved
By Linux
Published
- 7 months later
· 7 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 95% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < a8226a45b2a9ce83ba7a167a387a00fecc319e71
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < 169134da419cb8ffbe3b0743bc24573e16952ea9
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < 6604df2a9d07ba8f8fb1ac14046c2c83776faa4f
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < 9940877c4fe752923a53f0f7372f2f152b6eccf0
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < ad31eed06c3b4d63b2d38322a271d4009aee4bb3
- affected 4c8ff7095bef64fc47e996a938f7d57f9e077da3 – < babedcbac164cec970872b8097401ca913a80e61
- affected 5.6
- unaffected < 5.6
- unaffected 5.10.180 – ≤ 5.10.*
- unaffected 5.15.111 – ≤ 5.15.*
- unaffected 6.1.28 – ≤ 6.1.*
- unaffected 6.2.15 – ≤ 6.2.*
- unaffected 6.3.2 – ≤ 6.3.*
- unaffected 6.4 – ≤ *
References
References6
- https://git.kernel.org/stable/c/a8226a45b2a9ce83ba7a167a387a00fecc319e71 (opens in a new tab)
- https://git.kernel.org/stable/c/169134da419cb8ffbe3b0743bc24573e16952ea9 (opens in a new tab)
- https://git.kernel.org/stable/c/6604df2a9d07ba8f8fb1ac14046c2c83776faa4f (opens in a new tab)
- https://git.kernel.org/stable/c/9940877c4fe752923a53f0f7372f2f152b6eccf0 (opens in a new tab)
- https://git.kernel.org/stable/c/ad31eed06c3b4d63b2d38322a271d4009aee4bb3 (opens in a new tab)
- https://git.kernel.org/stable/c/babedcbac164cec970872b8097401ca913a80e61 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-60258 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-54068)Record last updated .