ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)
References
- https://git.kernel.org/stable/c/2142dfa1de61e25b83198af0308ec7689cca25d3
- https://git.kernel.org/stable/c/c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5
- https://git.kernel.org/stable/c/f7e6b5548f915d7aa435d0764d41eacfb49c6e09
- https://git.kernel.org/stable/c/f725b290ed79ad61e4f721fee95a287892d8b1ad
- https://git.kernel.org/stable/c/488a5c2bf7543c3cd3f07a025f2e62be91599430
- https://git.kernel.org/stable/c/63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| 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) |
European references
- ENISA EUVD · EUVD-2025-32374
- GCVE · GCVE-0-2022-50485
CERT-FR advisories
- CERTFR-2025-AVI-1073 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1047 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.10 < 5.4.229cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.163cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.87cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.0.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1 < 6.1.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < 2142dfa1de61e25b83198af0308ec7689cca25d3 ; affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5 ; affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < f7e6b5548f915d7aa435d0764d41eacfb49c6e09 ; affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < f725b290ed79ad61e4f721fee95a287892d8b1ad ; affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < 488a5c2bf7543c3cd3f07a025f2e62be91599430 ; affected 393d1d1d76933886d5e1ce603214c9987589c6d5 < 63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023 |
| Linux · Linux | affected 3.10 ; unaffected 0 < 3.10 ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.* ; unaffected 5.15.87 ≤ 5.15.* ; unaffected 6.0.18 ≤ 6.0.* |
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 |