Not yet scoredPublished Oct 6, 2026

CVE-2026-98227memstick: ms_block: destroy io_queue workqueue on removal

Updated under an hour ago (Oct 27, 2026, 8:50 PM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before 0ff795163f37109a134b5a421558530f8d091544; from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before 19c3da6621a253f1f8b937ed91bc22330a930d9c; from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before 9a2e7cdc0880e735aff0968ee402f2c92a992b9b; from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before 6611f78ec3fd4b33a00bfda20725b254a22979f6; from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before f222bb8c30cf5699c560b29179ff2bddcac1f950; from 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 before 90af7fde083e1b22c349c3a8b1626728e44e474c	CNA record

References

References

https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544
https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c
https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b
https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6
https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950
https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.