CVE-2026-80553
Published Aug 26, 2026
Description
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.
Is your site exposed to CVE-2026-80553?
Run a free security scan — no signup, results in seconds.
References
Other References
https://git.kernel.org/stable/c/77f5e888d2e607a0b3141fb95091ad6ef1cca9a2
https://git.kernel.org/stable/c/79c60b2c61105368dcc8444eb45847e21734f7c4
https://git.kernel.org/stable/c/b7ae0f7993867d009a4b554fc1d6d451c10580a0
https://git.kernel.org/stable/c/dc47a98abe6714577a25224534dbd356051097a3
https://git.kernel.org/stable/c/e868ea8be0bc88c6982f48ecf3259d98afd884ae
Frequently Asked Questions
What is CVE-2026-80553? +
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.
How do I check if I'm vulnerable to CVE-2026-80553? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.