nilfs2: fix hang in nilfs_lookup_dirty_data_buffers() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.19 % · centile 9 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix hang in nilfs_lookup_dirty_data_buffers() Syzbot reported a hang issue in migrate_pages_batch() called by mbind() and nilfs_lookup_dirty_data_buffers() called in the log writer of nilfs2. While migrate_pages_batch() locks a folio and waits for the writeback to complete, the log writer thread that should bring the writeback to completion picks up the folio being written back in nilfs_lookup_dirty_data_buffers() that it calls for subsequent log creation and was trying to lock the folio. Thus causing a deadlock. In the first place, it is unexpected that folios/pages in the middle of writeback will be updated and become dirty. Nilfs2 adds a checksum to verify the validity of the log being written and uses it for recovery at mount, so data changes during writeback are suppressed. Since this is broken, an unclean shutdown could potentially cause recovery to fail. Investigation revealed that the root cause is that the wait for writeback completion in nilfs_page_mkwrite() is conditional, and if the backing device does not require stable writes, data may be modified without waiting. Fix these issues by making nilfs_page_mkwrite() wait for writeback to finish regardless of the stable write requirement of the backing device.
Faiblesses (CWE)
- CWE-667 — Improper Locking
Références
- https://git.kernel.org/stable/c/228742b2ddfb99dfd71e5a307e6088ab6836272e
- https://git.kernel.org/stable/c/862ee4422c38be5c249844a684b00d0dbe9d1e46
- https://git.kernel.org/stable/c/98a4026b22ff440c7f47056481bcbbe442f607d6
- https://git.kernel.org/stable/c/7e9b622bd0748cc104d66535b76d9b3535f9dc0f
- https://git.kernel.org/stable/c/8494ba2c9ea00a54d5b50e69b22c55a8958bce32
- https://git.kernel.org/stable/c/ea5ddbc11613b55e5128c85f57b08f907abd9b28
- https://git.kernel.org/stable/c/e38585401d464578d30f5868ff4ca54475c34f7d
- https://git.kernel.org/stable/c/38296afe3c6ee07319e01bb249aa4bb47c07b534
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2024-23958
- GCVE · GCVE-0-2024-26696
Avis du CERT-FR
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0667 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0633 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0611 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0527 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0526 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0456 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0439 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0422 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0420 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0383 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0381 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0363 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0334 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.9 < 4.19.307cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.269cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.210cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.149cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.79cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.7.6cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < 228742b2ddfb99dfd71e5a307e6088ab6836272e ; affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < 862ee4422c38be5c249844a684b00d0dbe9d1e46 ; affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < 98a4026b22ff440c7f47056481bcbbe442f607d6 ; affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < 7e9b622bd0748cc104d66535b76d9b3535f9dc0f ; affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < 8494ba2c9ea00a54d5b50e69b22c55a8958bce32 ; affected 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0 < ea5ddbc11613b55e5128c85f57b08f907abd9b28 |
| Linux · Linux | affected 3.9 ; unaffected 0 < 3.9 ; unaffected 4.19.307 ≤ 4.19.* ; unaffected 5.4.269 ≤ 5.4.* ; unaffected 5.10.210 ≤ 5.10.* ; unaffected 5.15.149 ≤ 5.15.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |