{"id":"CVE-2026-80553","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Cancel existing workqueues\n\nThe initialization of the io_work and crw_work workqueues begs the\nquestion of whether they should be un-initialized","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Cancel existing workqueues\n\nThe initialization of the io_work and crw_work workqueues begs the\nquestion of whether they should be un-initialized. Add the…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < 87d569cb35a541b31a184faf982540694d4c9a89","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < 7492ca2d0c5d59add01e267be9f5a6eeb8076fd7","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < b94b28c1f0fae53b2f2d6180ae6442c9a1558f67","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < e868ea8be0bc88c6982f48ecf3259d98afd884ae","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < dc47a98abe6714577a25224534dbd356051097a3","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < b7ae0f7993867d009a4b554fc1d6d451c10580a0","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < 77f5e888d2e607a0b3141fb95091ad6ef1cca9a2","Linux >= e5f84dbaea59b4f712dac428c337528b70e1c533 < 79c60b2c61105368dcc8444eb45847e21734f7c4","Linux 4.12"],"published":"2026-08-26","updated":"2026-10-16","sourceUpdated":"2026-10-16T20:17:59.697","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80553","references":[{"url":"https://git.kernel.org/stable/c/7492ca2d0c5d59add01e267be9f5a6eeb8076fd7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/77f5e888d2e607a0b3141fb95091ad6ef1cca9a2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/79c60b2c61105368dcc8444eb45847e21734f7c4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/87d569cb35a541b31a184faf982540694d4c9a89","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b7ae0f7993867d009a4b554fc1d6d451c10580a0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b94b28c1f0fae53b2f2d6180ae6442c9a1558f67","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc47a98abe6714577a25224534dbd356051097a3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e868ea8be0bc88c6982f48ecf3259d98afd884ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00176,"epssPercentile":0.07052,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:17:19.506995Z"},"ingestedAt":"2026-10-16T19:46:24.318Z","slug":"CVE-2026-80553","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Cancel existing workqueues\n\nThe initialization of the io_work and crw_work workqueues begs the\nquestion of whether they should be un-initialized. Add the corresponding\ncleanup tags in _release_dev to ensure work isn't dispatched after\nthe private struct is free'd.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}