High 8.8Published Aug 26, 2026

CVE-2026-80553s390/vfio_ccw: Cancel existing workqueues

Updated under an hour ago (Oct 28, 2026, 5:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Cancel existing workqueues The initialization of the io_work and crw_work workqueues begs the question of whether they should be un-initialized. Add the corresponding cleanup tags in _release_dev to ensure work isn't dispatched after the private struct is free'd.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e5f84dbaea59b4f712dac428c337528b70e1c533 before 87d569cb35a541b31a184faf982540694d4c9a89; from e5f84dbaea59b4f712dac428c337528b70e1c533 before 7492ca2d0c5d59add01e267be9f5a6eeb8076fd7; from e5f84dbaea59b4f712dac428c337528b70e1c533 before b94b28c1f0fae53b2f2d6180ae6442c9a1558f67; from e5f84dbaea59b4f712dac428c337528b70e1c533 before e868ea8be0bc88c6982f48ecf3259d98afd884ae; from e5f84dbaea59b4f712dac428c337528b70e1c533 before dc47a98abe6714577a25224534dbd356051097a3; from e5f84dbaea59b4f712dac428c337528b70e1c533 before b7ae0f7993867d009a4b554fc1d6d451c10580a0; from e5f84dbaea59b4f712dac428c337528b70e1c533 before 77f5e888d2e607a0b3141fb95091ad6ef1cca9a2; from e5f84dbaea59b4f712dac428c337528b70e1c533 before 79c60b2c61105368dcc8444eb45847e21734f7c4	CNA record

References

References

https://git.kernel.org/stable/c/87d569cb35a541b31a184faf982540694d4c9a89
https://git.kernel.org/stable/c/7492ca2d0c5d59add01e267be9f5a6eeb8076fd7
https://git.kernel.org/stable/c/b94b28c1f0fae53b2f2d6180ae6442c9a1558f67
https://git.kernel.org/stable/c/e868ea8be0bc88c6982f48ecf3259d98afd884ae
https://git.kernel.org/stable/c/dc47a98abe6714577a25224534dbd356051097a3
https://git.kernel.org/stable/c/b7ae0f7993867d009a4b554fc1d6d451c10580a0
https://git.kernel.org/stable/c/77f5e888d2e607a0b3141fb95091ad6ef1cca9a2
https://git.kernel.org/stable/c/79c60b2c61105368dcc8444eb45847e21734f7c4

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.