memstick: ms_block: destroy io_queue workqueue on removal
In the Linux kernel, the following vulnerability has been resolved: memstick: ms_block: destroy io_queue workqueue on removal msb_init_disk() creates the per-card ordered workqueue msb->io_queue with alloc_ordered_workqueue(). It is torn down with destroy_workqueue() only on the init error path; msb_remove() never destroys it. msb_stop() merely flushes the queue, and neither msb_data_clear() nor put_disk() free it. As a result every card insert/remove cycle leaks the workqueue and its kworker, exhausting kernel memory over repeated cycles. Destroy the workqueue in msb_remove() after the disk has been removed and the queue drained.
CVE-2026-98227
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98227
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "0ff795163f37109a134b5a421558530f8d091544",
"versionType": "git"
},
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "19c3da6621a253f1f8b937ed91bc22330a930d9c",
"versionType": "git"
},
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "9a2e7cdc0880e735aff0968ee402f2c92a992b9b",
"versionType": "git"
},
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "6611f78ec3fd4b33a00bfda20725b254a22979f6",
"versionType": "git"
},
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "f222bb8c30cf5699c560b29179ff2bddcac1f950",
"versionType": "git"
},
{
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"lessThan": "90af7fde083e1b22c349c3a8b1626728e44e474c",
"versionType": "git"
}
],
"programFiles": [
"drivers/memstick/core/ms_block.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/memstick/core/ms_block.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98227
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38307 · Revision 1
- Added to Heist Feed
- Publisher date