CVE-2026-46070
md/raid5: validate payload size before accessing journal metadata
At a glance
- Severity
- HIGH 7.1
- EPSS
- EPSS 0.13 % · percentile 2 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Undergoing Analysis
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5: validate payload size before accessing journal metadata r5c_recovery_analyze_meta_block() and r5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a journal metadata block using on-disk payload size fields without validating them against the remaining space in the metadata block. A corrupted journal contains payload sizes extending beyond the PAGE_SIZE boundary can cause out-of-bounds reads when accessing payload fields or computing offsets. Add bounds validation for each payload type to ensure the full payload fits within meta_size before processing.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2026-32452
- GCVE · GCVE-0-2026-46070
CERT-FR advisories
- CERTFR-2026-AVI-1298 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1231 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1202 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1164 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1093 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0985 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0862 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0861 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0831 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0731 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 5.10.258cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.209cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.175cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.140cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.86cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.27cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected b4c625c67362b3940f619c1a836b4e8329106658 < c96c6f01d84b5c67db1bf1cc8591c0b7146826fc ; affected b4c625c67362b3940f619c1a836b4e8329106658 < ef4851d8324fd978ca1ff9ec76a275438f887743 ; affected b4c625c67362b3940f619c1a836b4e8329106658 < 28d3ff7109c66e99dc1b7cddacb5c760849620ef ; affected b4c625c67362b3940f619c1a836b4e8329106658 < 33698bd1b2db9764a29df7751533d33967ff5c98 ; affected b4c625c67362b3940f619c1a836b4e8329106658 < c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e ; affected b4c625c67362b3940f619c1a836b4e8329106658 < 73ce72edd113374801045924d4417199963f73a3 |
| Linux · Linux | affected 4.10 ; unaffected 0 < 4.10 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.* |
References
- https://git.kernel.org/stable/c/c96c6f01d84b5c67db1bf1cc8591c0b7146826fc
- https://git.kernel.org/stable/c/ef4851d8324fd978ca1ff9ec76a275438f887743
- https://git.kernel.org/stable/c/28d3ff7109c66e99dc1b7cddacb5c760849620ef
- https://git.kernel.org/stable/c/33698bd1b2db9764a29df7751533d33967ff5c98
- https://git.kernel.org/stable/c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e
- https://git.kernel.org/stable/c/73ce72edd113374801045924d4417199963f73a3
- https://git.kernel.org/stable/c/406aa86394ead347c47428fb51b6359bdaa2257d
- https://git.kernel.org/stable/c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
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 |