ext4: set goal start correctly in ext4_mb_normalize_request (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 9 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Deferred
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: set goal start correctly in ext4_mb_normalize_request We need to set ac_g_ex to notify the goal start used in ext4_mb_find_by_goal. Set ac_g_ex instead of ac_f_ex in ext4_mb_normalize_request. Besides we should assure goal start is in range [first_data_block, blocks_count) as ext4_mb_initialize_context does. [ Added a check to make sure size is less than ar->pright; otherwise we could end up passing an underflowed value of ar->pright - size to ext4_get_group_no_and_offset(), which will trigger a BUG_ON later on. - TYT ]
References
- https://git.kernel.org/stable/c/2479bb6cbdb4d56b807bbe5229e3e26a6f1f4530
- https://git.kernel.org/stable/c/390eee955d4de4662db5e3e9e9a9eae020432cb7
- https://git.kernel.org/stable/c/cee78217a7ae72d11c2e21e1a5263b8044489823
- https://git.kernel.org/stable/c/3ca3005b502ca8ea87d6a344323b179b48c4e4a3
- https://git.kernel.org/stable/c/bc4a3e1d07a86ae5845321d371190244acacb2f2
- https://git.kernel.org/stable/c/c6bee8970075b256fc1b07bf4873049219380818
- https://git.kernel.org/stable/c/abb330ffaa3a0ae7ce632e28c9260b461c01f19f
- https://git.kernel.org/stable/c/b07ffe6927c75d99af534d685282ea188d9f71a6
European references
- ENISA EUVD · EUVD-2025-205115
- GCVE · GCVE-0-2023-54021
CERT-FR advisories
- CERTFR-2026-AVI-0225 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0108 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected c9de560ded61faa5b754137b7753da252391c55a < 2479bb6cbdb4d56b807bbe5229e3e26a6f1f4530 ; affected c9de560ded61faa5b754137b7753da252391c55a < 390eee955d4de4662db5e3e9e9a9eae020432cb7 ; affected c9de560ded61faa5b754137b7753da252391c55a < cee78217a7ae72d11c2e21e1a5263b8044489823 ; affected c9de560ded61faa5b754137b7753da252391c55a < 3ca3005b502ca8ea87d6a344323b179b48c4e4a3 ; affected c9de560ded61faa5b754137b7753da252391c55a < bc4a3e1d07a86ae5845321d371190244acacb2f2 ; affected c9de560ded61faa5b754137b7753da252391c55a < c6bee8970075b256fc1b07bf4873049219380818 |
| Linux · Linux | affected 2.6.25 ; unaffected 0 < 2.6.25 ; unaffected 4.14.316 ≤ 4.14.* ; unaffected 4.19.284 ≤ 4.19.* ; unaffected 5.4.244 ≤ 5.4.* ; unaffected 5.10.181 ≤ 5.10.* |
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 |