CVE-2026-90385 (GCVE-0-2026-90385)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-10-30 12:35
VLAI
EPSS
VEX
Title
md/raid1: create serial pool adding rdev to array with serialize_policy=1
Summary
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.
Severity
No CVSS data available.
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < 6ea458171bed2b706dc7bcd80b15356c0e9ed718
(git)
Affected: 69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < 0b187e14dab458d54425fc400f1e1e8d481d9bcf (git) Affected: 69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < f9e4364449f7ca6917f3599eb32064dba5b7b147 (git) Affected: 69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < 37f11973c3eb72a5eb061082cad529bb6939c24f (git) Affected: 69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < c02d675e81468003e4f2253b616c53729070d712 (git) Affected: 69b00b5bb23552d43e8bbed73ef6624604bb94a2 , < 140234b2380ffb8ffb0cfc46fee0e822f43adef7 (git) |
guessed | |
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 6.1.191 , ≤ 6.1.* (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/md/md.c"
],
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"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "69b00b5bb23552d43e8bbed73ef6624604bb94a2",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "69b00b5bb23552d43e8bbed73ef6624604bb94a2",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/md/md.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"lessThan": "5.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.191",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.191",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.160",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.52",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.6",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: create serial pool adding rdev to array with serialize_policy=1\n\nThe following bug has been observed with kernel 7.1.3 after adding a new\nrdev to an existing RAID1 array with serialize_policy enabled:\n\n Oops: 0002 [#1]\n CPU: 0 UID: 0 PID: 19639 Comm: ext4lazyinit Not tainted 7.1.3-1-default\n RIP: _raw_spin_lock_irqsave+0x27/0x50\n CR2: 0000000000004960\n Call Trace:\n wait_for_serialization+0xb9/0x260 [raid1]\n raid1_make_request+0x762/0xaff [raid1]\n md_handle_request+0x1c9/0x2e0 [md_mod]\n\nThe raid1.c code calls wait_for_serialization() if the MD_SERIALIZE_POLICY\nis set, and wait_for_serialization assumes that rdev-\u003eserial is\ninitialized. Normally this will be the case for arrays that have\nthe serialize_policy sysfs attribute set to 1.\n\nBut when a new rdev is added to an existing array in bind_rdev_to_array(),\nthe condition at mddev_create_serial_pool() causes creation of rdev-\u003eserial\nto be skipped. Fix it."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T12:35:27.082Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6ea458171bed2b706dc7bcd80b15356c0e9ed718"
},
{
"url": "https://git.kernel.org/stable/c/0b187e14dab458d54425fc400f1e1e8d481d9bcf"
},
{
"url": "https://git.kernel.org/stable/c/f9e4364449f7ca6917f3599eb32064dba5b7b147"
},
{
"url": "https://git.kernel.org/stable/c/37f11973c3eb72a5eb061082cad529bb6939c24f"
},
{
"url": "https://git.kernel.org/stable/c/c02d675e81468003e4f2253b616c53729070d712"
},
{
"url": "https://git.kernel.org/stable/c/140234b2380ffb8ffb0cfc46fee0e822f43adef7"
}
],
"title": "md/raid1: create serial pool adding rdev to array with serialize_policy=1",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-90385",
"datePublished": "2026-09-17T16:09:21.198Z",
"dateReserved": "2026-09-11T19:38:34.809Z",
"dateUpdated": "2026-10-30T12:35:27.082Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-90385",
"date": "2026-11-14",
"epss": "0.00206",
"percentile": "0.10766"
},
"nvd": {
"cve": {
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"product": "Linux",
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{
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"vendor": "Linux",
"versions": [
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{
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"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
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"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
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"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: create serial pool adding rdev to array with serialize_policy=1\n\nThe following bug has been observed with kernel 7.1.3 after adding a new\nrdev to an existing RAID1 array with serialize_policy enabled:\n\n Oops: 0002 [#1]\n CPU: 0 UID: 0 PID: 19639 Comm: ext4lazyinit Not tainted 7.1.3-1-default\n RIP: _raw_spin_lock_irqsave+0x27/0x50\n CR2: 0000000000004960\n Call Trace:\n wait_for_serialization+0xb9/0x260 [raid1]\n raid1_make_request+0x762/0xaff [raid1]\n md_handle_request+0x1c9/0x2e0 [md_mod]\n\nThe raid1.c code calls wait_for_serialization() if the MD_SERIALIZE_POLICY\nis set, and wait_for_serialization assumes that rdev-\u003eserial is\ninitialized. Normally this will be the case for arrays that have\nthe serialize_policy sysfs attribute set to 1.\n\nBut when a new rdev is added to an existing array in bind_rdev_to_array(),\nthe condition at mddev_create_serial_pool() causes creation of rdev-\u003eserial\nto be skipped. Fix it."
}
],
"id": "CVE-2026-90385",
"lastModified": "2026-10-30T13:20:51.933",
"metrics": {},
"published": "2026-09-17T17:17:37.880",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0b187e14dab458d54425fc400f1e1e8d481d9bcf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/140234b2380ffb8ffb0cfc46fee0e822f43adef7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/37f11973c3eb72a5eb061082cad529bb6939c24f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6ea458171bed2b706dc7bcd80b15356c0e9ed718"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c02d675e81468003e4f2253b616c53729070d712"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f9e4364449f7ca6917f3599eb32064dba5b7b147"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-11-07T11:07:28+00:00",
"cve": "CVE-2026-90385",
"id": "CVE-2026-90385",
"initial_release_date": "2026-09-17T00:00:00+00:00",
"product_status:known_affected": "175",
"product_status:known_not_affected": "28",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: md/raid1: create serial pool adding rdev to array with serialize_policy=1",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90385.json",
"version": "3"
}
}
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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