CVE-2026-90385
md/raid1: create serial pool adding rdev to array with serialize_policy=1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: create serial pool adding rdev to array with serialize_policy=1 The following bug has been observed with kernel 7.1.3 after adding a new rdev to an existing RAID1 array with serialize_policy enabled: Oops: 0002 [#1] CPU: 0 UID: 0 PID: 19639 Comm: ext4lazyinit Not tainted 7.1.3-1-default RIP: _raw_spin_lock_irqsave+0x27/0x50 CR2: 0000000000004960 Call Trace: wait_for_serialization+0xb9/0x260 [raid1] raid1_make_request+0x762/0xaff [raid1] md_handle_request+0x1c9/0x2e0 [md_mod] The raid1.c code calls wait_for_serialization() if the MD_SERIALIZE_POLICY is set, and wait_for_serialization assumes that rdev->serial is initialized. Normally this will be the case for arrays that have the serialize_policy sysfs attribute set to 1. But when a new rdev is added to an existing array in bind_rdev_to_array(), the condition at mddev_create_serial_pool() causes creation of rdev->serial to be skipped. Fix it.
References
- https://git.kernel.org/stable/c/0b187e14dab458d54425fc400f1e1e8d481d9bcf
- https://git.kernel.org/stable/c/f9e4364449f7ca6917f3599eb32064dba5b7b147
- https://git.kernel.org/stable/c/37f11973c3eb72a5eb061082cad529bb6939c24f
- https://git.kernel.org/stable/c/c02d675e81468003e4f2253b616c53729070d712
- https://git.kernel.org/stable/c/140234b2380ffb8ffb0cfc46fee0e822f43adef7
European references
- ENISA EUVD · EUVD-2026-82046
- GCVE · GCVE-0-2026-90385
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 69b00b5bb23552d43e8bbed73ef6624604bb94a2 < 0b187e14dab458d54425fc400f1e1e8d481d9bcf ; affected 69b00b5bb23552d43e8bbed73ef6624604bb94a2 < f9e4364449f7ca6917f3599eb32064dba5b7b147 ; affected 69b00b5bb23552d43e8bbed73ef6624604bb94a2 < 37f11973c3eb72a5eb061082cad529bb6939c24f ; affected 69b00b5bb23552d43e8bbed73ef6624604bb94a2 < c02d675e81468003e4f2253b616c53729070d712 ; affected 69b00b5bb23552d43e8bbed73ef6624604bb94a2 < 140234b2380ffb8ffb0cfc46fee0e822f43adef7 |
| Linux · Linux | affected 5.6 ; unaffected 0 < 5.6 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.110 ≤ 6.12.* ; unaffected 6.18.52 ≤ 6.18.* ; unaffected 7.2.6 ≤ 7.2.* |
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 |