{"id":"CVE-2026-89997","published":"2026-09-16T11:17:10.933","lastModified":"2026-09-17T10:17:05.510","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix resume-vs-remove race\n\nIf the user issues the resume ioctl and the remove ioctl at the same\ntime, it may be possible that the device is resumed after it is suspended\nin __dm_destroy. The result is that the table is destroyed without\ncalling the postsuspend method.\n\nDm targets expect that they may be removed only after the postsuspend\nmethod method was called. If we break this expectation, it can cause\nmisbehavior in various targets. For example - in the dm-integrity target,\nthe reboot notifier is not unregistered, leading to use-after-free.\n\nFix this bug by refusing to resume if the device is being destroyed.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/1ede2bce2bd640605df83db1356fd727159bc9ed","tags":[]},{"url":"https://git.kernel.org/stable/c/36177beff2a9df035991ad8d16ccf8d363ed93ee","tags":[]},{"url":"https://git.kernel.org/stable/c/3b59530b14fde693e41d8e39bc326df6cbf07b76","tags":[]},{"url":"https://git.kernel.org/stable/c/3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f","tags":[]},{"url":"https://git.kernel.org/stable/c/44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5","tags":[]},{"url":"https://git.kernel.org/stable/c/94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71","tags":[]},{"url":"https://git.kernel.org/stable/c/94f3d399c1ddba763c1c5a6501f7375d533d789f","tags":[]},{"url":"https://git.kernel.org/stable/c/9757367bcf1d5d2c50b94d005abca21f3eedd7c3","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This flaw allows a race condition where a device may be resumed after it is suspended during removal, leading to potential use-after-free conditions in certain targets, such as dm-integrity.","exploitability":"Exploitation requires precise timing of resume and remove ioctls, making it moderately difficult. Precondition is the concurrent execution of both ioctls.","blast_radius":"If exploited, it could lead to system instability or security issues in affected dm targets, such as use-after-free conditions.","remediation":"Upgrade to the Linux kernel version 6.2.0 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["race-condition","use-after-free","kernel"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-07T08:45:37.428Z"}}