CVE-2026-90129

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90129", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.788Z", "datePublished": "2026-09-17T16:06:30.537Z", "dateUpdated": "2026-10-30T12:34:17.423Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:34:17.423Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_balloon: quiesce balloon work before device shutdown\n\nCommit 8bd2fa086a04 (\"virtio: break and reset virtio devices on\ndevice_shutdown()\") added a generic virtio bus .shutdown handler that\nbreaks and resets every virtio device during device_shutdown(), i.e. on\nreboot and kexec.\n\nvirtio_balloon provides no .shutdown of its own, so that generic path\nruns while the balloon's asynchronous work is still armed. Once the\ndevice has been broken, virtqueue_add_inbuf() in\nvirtballoon_free_page_report() returns -EIO and trips its\nWARN_ON_ONCE(). On a kernel booted with panic_on_warn that turns an\nordinary reboot, for example a kexec based upgrade, into a fatal panic\nin the middle of device_shutdown(), so the machine never reaches the\nnew kernel.\n\nRelaxing that single WARN_ON_ONCE() would only hide the symptom: the\ninflate/deflate and OOM paths do not warn, they call\nwait_event(vb->acked, ...) and would instead block forever on a broken\nqueue that can no longer complete. The device has to be quiesced, not\njust kept quiet.\n\nAdd a .shutdown handler that quiesces the balloon via the shared\nvirtballoon_quiesce() helper while the device is still alive, and only\nthen breaks and resets it via virtio_device_shutdown(). Unlike\nvirtballoon_remove() the balloon workqueue is not destroyed, as shutdown\ndoes not free the device and cancel_work_sync() together with stop_update\nalready prevent any further work from being queued."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/virtio/virtio_balloon.c"], "versions": [{"version": "8bd2fa086a04886798b505f28db4002525895203", "lessThan": "6dd28e32f4d81a0d57c732b9900de24184e60a7d", "status": "affected", "versionType": "git"}, {"version": "8bd2fa086a04886798b505f28db4002525895203", "lessThan": "bdef50a8226fc04899ef6815dd08a002247d47d5", "status": "affected", "versionType": "git"}, {"version": "8bd2fa086a04886798b505f28db4002525895203", "lessThan": "7e17eef04600c399c7e0f5ce765da5cf9d40d8e1", "status": "affected", "versionType": "git"}, {"version": "0c03e32494dd0bbcc301523e5ae567c2f567a7d9", "status": "affected", "versionType": "git"}, {"version": "acdfe206be6c70ec55dc8bfdb1a22036d10fae26", "status": "affected", "versionType": "git"}, {"version": "1eaa83fd94ed5e40d43139025f5acb7bcfed3b5f", "status": "affected", "versionType": "git"}, {"version": "aee42f3d57bfa37b2716df4584edeecf63b9df4c", "status": "affected", "versionType": "git"}, {"version": "6.1.191", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.6.160", "lessThan": "6.7", "status": "affected", "versionType": "semver"}, {"version": "6.12.114", "lessThan": "6.13", "status": "affected", "versionType": "semver"}, {"version": "6.14.9", "lessThan": "6.15", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/virtio/virtio_balloon.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6dd28e32f4d81a0d57c732b9900de24184e60a7d"}, {"url": "https://git.kernel.org/stable/c/bdef50a8226fc04899ef6815dd08a002247d47d5"}, {"url": "https://git.kernel.org/stable/c/7e17eef04600c399c7e0f5ce765da5cf9d40d8e1"}], "title": "virtio_balloon: quiesce balloon work before device shutdown", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/virtio/virtio_balloon.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6dd28e32f4d81a0d57c732b9900de24184e60a7d", "status": "affected", "version": "8bd2fa086a04886798b505f28db4002525895203", "versionType": "git"}, {"lessThan": "bdef50a8226fc04899ef6815dd08a002247d47d5", "status": "affected", "version": "8bd2fa086a04886798b505f28db4002525895203", "versionType": "git"}, {"lessThan": "7e17eef04600c399c7e0f5ce765da5cf9d40d8e1", "status": "affected", "version": "8bd2fa086a04886798b505f28db4002525895203", "versionType": "git"}, {"status": "affected", "version": "0c03e32494dd0bbcc301523e5ae567c2f567a7d9", "versionType": "git"}, {"status": "affected", "version": "acdfe206be6c70ec55dc8bfdb1a22036d10fae26", "versionType": "git"}, {"status": "affected", "version": "1eaa83fd94ed5e40d43139025f5acb7bcfed3b5f", "versionType": "git"}, {"status": "affected", "version": "aee42f3d57bfa37b2716df4584edeecf63b9df4c", "versionType": "git"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.191", "versionType": "semver"}, {"lessThan": "6.7", "status": "affected", "version": "6.6.160", "versionType": "semver"}, {"lessThan": "6.13", "status": "affected", "version": "6.12.114", "versionType": "semver"}, {"lessThan": "6.15", "status": "affected", "version": "6.14.9", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/virtio/virtio_balloon.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"lessThan": "6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_balloon: quiesce balloon work before device shutdown\n\nCommit 8bd2fa086a04 (\"virtio: break and reset virtio devices on\ndevice_shutdown()\") added a generic virtio bus .shutdown handler that\nbreaks and resets every virtio device during device_shutdown(), i.e. on\nreboot and kexec.\n\nvirtio_balloon provides no .shutdown of its own, so that generic path\nruns while the balloon's asynchronous work is still armed. Once the\ndevice has been broken, virtqueue_add_inbuf() in\nvirtballoon_free_page_report() returns -EIO and trips its\nWARN_ON_ONCE(). On a kernel booted with panic_on_warn that turns an\nordinary reboot, for example a kexec based upgrade, into a fatal panic\nin the middle of device_shutdown(), so the machine never reaches the\nnew kernel.\n\nRelaxing that single WARN_ON_ONCE() would only hide the symptom: the\ninflate/deflate and OOM paths do not warn, they call\nwait_event(vb->acked, ...) and would instead block forever on a broken\nqueue that can no longer complete. The device has to be quiesced, not\njust kept quiet.\n\nAdd a .shutdown handler that quiesces the balloon via the shared\nvirtballoon_quiesce() helper while the device is still alive, and only\nthen breaks and resets it via virtio_device_shutdown(). Unlike\nvirtballoon_remove() the balloon workqueue is not destroyed, as shutdown\ndoes not free the device and cancel_work_sync() together with stop_update\nalready prevent any further work from being queued."}], "id": "CVE-2026-90129", "lastModified": "2026-10-30T13:20:42.647", "metrics": {}, "published": "2026-09-17T17:17:05.370", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6dd28e32f4d81a0d57c732b9900de24184e60a7d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7e17eef04600c399c7e0f5ce765da5cf9d40d8e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bdef50a8226fc04899ef6815dd08a002247d47d5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8bd2fa086a04886798b505f28db4002525895203,6dd28e32f4d81a0d57c732b9900de24184e60a7d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8bd2fa086a04886798b505f28db4002525895203,bdef50a8226fc04899ef6815dd08a002247d47d5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8bd2fa086a04886798b505f28db4002525895203,7e17eef04600c399c7e0f5ce765da5cf9d40d8e1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "aee42f3d57bfa37b2716df4584edeecf63b9df4c"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.14.9,6.15)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T16:15:10.599258+00:00", "updated": "2026-09-18T22:45:15.089571+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-668"]}