{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-99104 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-99104 is a vulnerability in Linux, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-99104 and fix it if it is affected.\n\nWhat it is: CVE-2026-99104 is a vulnerability in Linux, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-99104 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-99104/ (Markdown: https://insights.sbomify.com/CVE-2026-99104/index.md)","id":"CVE-2026-99104","markdown":"https://insights.sbomify.com/CVE-2026-99104/index.md","name":"CVE-2026-99104","record":{"aliases":["DEBIAN-CVE-2026-99104","GHSA-73px-7g6q-p2m6","UBUNTU-CVE-2026-99104"],"analysis":null,"analysis_generated_by":null,"assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Fix the bypass dispatch claim for schedulers bypassed by an ancestor\n\nscx_bypass() claims bypass dispatch when the scheduler's depth goes from\nzero to one and releases it when the depth returns to zero, but propagates\nonly the depth to the descendants, not the claim. A descendant that starts\nbypassing with its ancestor never claims, and one whose own bypass ends\nunder the ancestor's keeps its claim, as its depth does not return to zero.\n\nA sub-scheduler enable whose bypass ends under a PM suspend thus leaks its\nclaim: the parent keeps hosting bypass dispatch and the sub-scheduler's next\nbypass trips the WARN_ON_ONCE() on the claim. A sub-scheduler disable that\nstarts under a PM suspend has no claim, so once the resume lifts the root's\nbypass its tasks sit on the parent's bypass DSQs with nobody consuming them.\n\nClaim for every descendant whose depth goes from zero to one in the\npropagation and release every scheduler in the subtree whose depth returned\nto zero once the tasks have moved out of the bypass DSQs. A parent that is\nbypassing itself when a descendant claims consumes only its own bypass DSQs,\nempty until it leaves bypass and becomes the host.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"sched_ext: Fix the bypass dispatch claim for schedulers bypassed by an ancestor","id":"CVE-2026-99104","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"sched_ext: Fix stall when a task enqueued with SCX_ENQ_LAST lands back on its CPU's local DSQ","id":"CVE-2026-99105"},"packages":[],"prev":{"headline":"workqueue: Fix unbound pool lifetime for pending pwqs","id":"CVE-2026-99103"},"products":["Linux"],"published":"2026-10-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-28","vendors":["Linux"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-99104/"}